CN104259887A - Multifunctional mistake-proof fixture for piston finish machining - Google Patents

Multifunctional mistake-proof fixture for piston finish machining Download PDF

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Publication number
CN104259887A
CN104259887A CN201410490815.2A CN201410490815A CN104259887A CN 104259887 A CN104259887 A CN 104259887A CN 201410490815 A CN201410490815 A CN 201410490815A CN 104259887 A CN104259887 A CN 104259887A
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CN
China
Prior art keywords
piston
base
air
offers
venthole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410490815.2A
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Chinese (zh)
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CN104259887B (en
Inventor
汪宝俊
张莉莉
沈银龙
房后生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANQING YADE TP PISTON RING Co Ltd
Anqing Art TP Pistons Co Ltd
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ANQING YADE TP PISTON RING Co Ltd
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Priority to CN201410490815.2A priority Critical patent/CN104259887B/en
Publication of CN104259887A publication Critical patent/CN104259887A/en
Application granted granted Critical
Publication of CN104259887B publication Critical patent/CN104259887B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/006Arrangements for observing, indicating or measuring on machine tools for indicating the presence of a work or tool in its holder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness

Abstract

The invention provides a multifunctional mistake-proof fixture for piston finish machining. The multifunctional mistake-proof fixture comprises an upper base and a lower base, the two of which are stacked up and down into a step cylinder; at least three top surface air outlets for detecting whether a piston is mounted are formed at the outer edge of the top surface of the upper base, while bottom surface air inlets for introducing compressed air are formed in the bottom surface of the lower base; air ducts for correspondingly communicating the top surface air outlets with the bottom surface air inlets are formed in the upper base and the lower base; pressure gauges for detecting the pressures in the air ducts are connected to the bottom surface air inlets; side surface air outlets for piston detection are formed in the circumferential side edge of the upper base in positions corresponding to the top surface air outlets, and the side surface air outlets are communicated with the air ducts. The air holes are additionally formed in the circumferential side surface of the upper base of the multifunctional mistake-proof fixture for piston finish machining to effectively prevent outflow of products having abnormal piston inner diameter dimension; as a result, the product quality stability is improved; 100% monitoring of online devices can be realized, manual measurement by the personnel is not needed, and consequently, the labor intensity of the personnel is reduced and the operability is improved.

Description

Piston precision processes multi-functional error-proofing tool
Technical field
The present invention relates to piston right boring processing technique field, be specifically related to a kind of piston precision and process multi-functional error-proofing tool.
 
background technology
Piston precision processing needs to use right boring base frock, existing piston right boring base frock mainly comprises bottom base, wherein the end face of top base offers three and detects pore, be communicated with the air admission hole of bottom base by air flue, and monitor air flue internal gas pressure value respectively by 3 air gauges, according to changing value and the difference of atmospheric pressure value, unassured seat is had whether correctly to judge with seat to piston
But adopt this right boring base frock, internal diameter size to be become to large 0.05mm(technical tolerance be 0.05mm) more than piston without detecting effect, when piston seat, the adherence point of seam end face still can normal process after contacting with detection pore, causes the product of internal diameter size exception to flow out; Add man-hour piston and frock fit, middle aluminium bits cannot Automatic clearance, easily piles up, affects Continuous maching; Without reverse mistake proofing when piston adopts this frock to carry out fine finishining, after piston that seat is counter and put, pin-and-hole eccentric direction becomes anti-, and processing causes pin-and-hole size abnormal, reduces product percent of pass.
 
Summary of the invention
The invention provides a kind of prevent internal diameter size abnormal products flow out, prevent counter put and except aluminium bits frock center pile up piston precision process multi-functional error-proofing tool.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of piston precision processes multi-functional error-proofing tool, comprise the top base and bottom base that are stacked to stepped cylindrical up and down, the end face outer of this top base offers at least three for detecting the end face venthole seat with or without piston, bottom base bottom surface offers for passing into compressed-air actuated bottom surface air admission hole, on described, the air flue being communicated with end face venthole and bottom surface air admission hole for correspondence is offered in bottom base, described bottom surface air inlet position is connected with the air gauge for detecting air flue internal gas pressure, the corresponding end face venthole place of circumference side of described top base offers the side venthole detected for piston, this side venthole is communicated with described air flue.
During actual job, piston is placed on error-proofing tool, three air gauges that three air flues are corresponding will show numerical value, the principle in a face is determined according to 3, whether three the end face ventholes being positioned at piston tip can be used for detecting piston has unassured seat correct with seat, and the side venthole being positioned at top base circumference side can be used for whether extremely detecting piston inner diameter size simultaneously, when air pressure numerical value is lower than atmospheric pressure value in technical tolerance allowed band, finish machining equipment will be reported to the police and do not processed, prevent the abnormal outflow of internal diameter size, improve product quality stability, avoid customer complaint.
Further, described top base end face offers a pair oil outlet, and this oil outlet is communicated with the fuel feed hole being opened in bottom base bottom surface by the oil duct be opened in upper and lower pedestal.Cutting oil can be passed into rinse the aluminium of frock finished surface bits, eliminate and add man-hour aluminium bits and pile up problem at frock center, improve employee's workability.
Between described oil outlet, top base top middle portion offers a pair towards outside skewed slot, aluminium can be made to consider to be worth doing to rinse through cutting oil to discharge along skewed slot, effectively eliminates the aluminium bits produced in process, improves developing result.
Connected by horizontal support platform between the top of skewed slot described in two.The effect of horizontal support platform is that the aluminium bits allowing processing produce sink to herein, prevents aluminium from considering to be worth doing and piles up at piston cavity, is convenient to cutting fluid simultaneously and the punching of aluminium bits is discharged to tipper.
Top base place corresponding to described skewed slot bottom offers the groove of the notch.Offer the groove of the notch to be convenient to aluminium bits and to be cut liquid along angle of inclination and to rinse thoroughly.
Further, described top base offering the mistake proofing screw for installing mistake proofing alignment pin, increasing reverse mistake proofing alignment pin, effectively prevent piston counter put processing produce bad.
Further, described air flue comprises the main airway for being communicated with bottom surface air admission hole, and described end face venthole is communicated with by the first gas-distributing channel with between this main airway, is communicated with between described side venthole with this first gas-distributing channel by the second gas-distributing channel.Adopt two gas-distributing channels to be communicated with end face venthole and side venthole respectively, piston to seat and internal diameter size are abnormal to be detected simultaneously, improve detection efficiency.
Preferably, the internal diameter of described main airway, the first gas-distributing channel and the second gas-distributing channel is than being 4:1:1 ~ 6:1:1.Gas-distributing channel adopts undergauge structure, effectively can improve the precision of detection.
From above technical scheme, the present invention is by increasing pore in error prevention device top base circumference side, effectively prevent the product of piston inner diameter size exception from flowing out, improve constant product quality, online equipment can 100% to be monitored totally, without the need to employee's manual measurement, reduce staff labor intensity, improve workability; Meanwhile, by set out oilhole as cutting oil flushing hole and arrange skewed slot as processing produce aluminium bits chip area, can effectively eliminate produce in process aluminium bits, eliminate aluminium bits frock center pile up problem; Increase and reversely prevent bolt, effectively prevent that piston is counter to be filled processing and produce bad.
 
Accompanying drawing explanation
Fig. 1 is the stereogram one of the multi-functional error-proofing tool of inventive piston fine finishining;
Fig. 2 is the stereogram two of the multi-functional error-proofing tool of inventive piston fine finishining, and volume bottom base bottom surface mechanism is shown;
Fig. 3 is the front view of the multi-functional error-proofing tool of inventive piston fine finishining;
Fig. 4 is the A-A sectional view of Fig. 2;
Fig. 5 is the B-B sectional view of Fig. 2;
Fig. 6 is the F part partial enlarged drawing of Fig. 5.
In figure: 100, top base, 110, end face venthole, 120, side venthole, 130, oil outlet, 140, skewed slot, 150, horizontal support platform, 160, the groove of the notch, 170, mistake proofing screw, 200, bottom base, 210, bottom surface air admission hole, 220, fuel feed hole, 230, dowel hole, 240, plug, 310, main airway, the 320, first gas-distributing channel, the 330, second gas-distributing channel.
 
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred embodiment of the present invention is described in detail.
As shown in Figures 1 to 4, the multi-functional error-proofing tool of inventive piston fine finishining comprises the top base 100 and bottom base 200 that are stacked to stepped cylindrical up and down, bottom base bottom surface offers dowel hole 230, fix by alignment pin and equipment connection, top base band bias (eccentric contrary with piston pin hole) and be integrated connection with bottom base.
The end face outer of described top base 100 offers at least three for detecting the end face venthole 110 seat with or without piston, present embodiment illustrates three end face ventholes, the position of this end face venthole just in time corresponds to the adherence point of seam end face when piston seat, and ensures that wherein two end face ventholes are distributed in both sides.
Described bottom base 200 bottom surface offers for passing into compressed-air actuated bottom surface air admission hole 210, on, three air flues being communicated with end face venthole and bottom surface air admission hole for correspondence are offered in bottom base, described bottom surface air inlet position is connected with the air gauge for detecting air flue internal gas pressure, this barometric specifications parameter is identical, ensure the uniformity that piston each air gauge under the correct and internal diameter size Qualification of seat and shown numerical value, becoming large 0.05mm(technical tolerance in piston inner diameter size is 0.05mm) more than time, atmospheric pressure value in technical tolerance allowed band is designated as qualified atmospheric pressure value A 0.
The corresponding end face venthole place of circumference side of described top base 100 offers the side venthole 120 detected for piston, this side venthole is communicated with described air flue, the position of side venthole needs to determine according to the width on bottom profiled limit, piston skirt, under ensureing piston inner diameter size qualification situation, bottom profiled limit, piston skirt just in time props up this side venthole.
During detection, compressed air is passed into from bottom base bottom surface air admission hole, end face venthole and the side venthole of top base is reached respectively through air flue, when the unassured seat of piston and/or piston the incorrect and/or piston inner diameter size of seat, to become large 0.05mm(technical tolerance be 0.05mm) more than time, venthole leaks gas, three corresponding air gauge numerical value will change, if wherein at least one barometric show value is less than qualified atmospheric pressure value A 0time, then illustrate that the unassured seat of piston and/or piston seat incorrect, if the air gauge of both sides wherein has the air gauge numerical value of side lower than qualified atmospheric pressure value A 0time, then illustrate that piston inner diameter size is abnormal, above-mentioned two situations all can make equipment alarm not process, and prevent from processing defective and internal diameter size abnormal products outflow.
As illustrated in Figures 5 and 6, described air flue comprises main airway 310, first gas-distributing channel 320 and the second gas-distributing channel 330, the internal diameter of described main airway, the first gas-distributing channel and the second gas-distributing channel is than being 4:1:1 ~ 6:1:1, main airway is for being communicated with bottom surface air admission hole, first gas-distributing channel is for being communicated with end face venthole and main airway, and the second gas-distributing channel is for being communicated with side venthole and the first gas-distributing channel.
As shown in figs. 1 and 3, the problem that man-hour, aluminium bits were piled up at frock center is added in order to eliminate, and improve employee's workability, need to offer a pair oil outlet 130 at top base end face, this oil outlet is communicated with the fuel feed hole 220 being opened in bottom base bottom surface by the oil duct be opened in upper and lower pedestal, at fuel feed hole, place passes into cutting oil, described oil outlet rinses as the aluminium bits of cutting oil flushing hole to frock finished surface, consistent in order to ensure the oil pump capacity of two oil outlets, described fuel feed hole only need offer a place.Simultaneously, in order to improve the effect of flushing further, between two oil outlets, top base top middle portion offers a pair towards outside skewed slot 140, the gradient of this skewed slot is 2 ° ~ 10 °, connected by horizontal support platform 150 between the top of skewed slot, top base place corresponding to skewed slot bottom offers the groove of the notch 160, adopts said structure that aluminium can be made to consider to be worth doing to rinse through cutting oil to discharge along skewed slot, effectively eliminate the aluminium bits produced in process, improve developing result.
Described top base 100 also offers the mistake proofing screw 170 for installing mistake proofing alignment pin, effectively prevent piston counter put processing produce bad.In actual production, need according to piston pin hole eccentric direction and interior key seat shape, the position of design mistake proofing screw and size.
Described main airway and oil duct all adopt bending structure, comprise horizontal component and vertical portion, and joint needs to offer corresponding plug 240.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.

Claims (8)

1. a piston precision processes multi-functional error-proofing tool, comprise the top base (100) and bottom base (200) that are stacked to stepped cylindrical up and down, the end face outer of this top base offers at least three for detecting the end face venthole (110) seat with or without piston, bottom base bottom surface offers for passing into compressed-air actuated bottom surface air admission hole (210), on described, the air flue being communicated with end face venthole and bottom surface air admission hole for correspondence is offered in bottom base, described bottom surface air inlet position is connected with the air gauge for detecting air flue internal gas pressure, it is characterized in that, the corresponding end face venthole place of circumference side of described top base (100) offers the side venthole (120) detected for piston, this side venthole is communicated with described air flue.
2. piston precision according to claim 1 processes multi-functional error-proofing tool, it is characterized in that, described top base (100) end face offers a pair oil outlet (130), and this oil outlet is communicated with the fuel feed hole (220) being opened in bottom base bottom surface by the oil duct be opened in upper and lower pedestal.
3. piston precision according to claim 2 processes multi-functional error-proofing tool, it is characterized in that, between described oil outlet, top base top middle portion offers a pair towards outside skewed slot (140).
4. piston precision according to claim 3 processes multi-functional error-proofing tool, it is characterized in that, is connected between the top of skewed slot described in two by horizontal support platform (150).
5. piston precision according to claim 2 processes multi-functional error-proofing tool, it is characterized in that, top base place corresponding to described skewed slot bottom offers the groove of the notch (160).
6. piston precision according to claim 1 processes multi-functional error-proofing tool, it is characterized in that, described top base (100) offers the mistake proofing screw (170) for installing mistake proofing alignment pin.
7. piston precision according to claim 1 processes multi-functional error-proofing tool, it is characterized in that, described air flue comprises the main airway (310) for being communicated with bottom surface air admission hole, described end face venthole is communicated with by the first gas-distributing channel (320) with between this main airway, is communicated with between described side venthole with this first gas-distributing channel by the second gas-distributing channel (330).
8. piston precision according to claim 7 processes multi-functional error-proofing tool, it is characterized in that, the internal diameter of described main airway, the first gas-distributing channel and the second gas-distributing channel is than being 4:1:1 ~ 6:1:1.
CN201410490815.2A 2014-09-24 2014-09-24 The multi-functional error-proofing tool of piston polish Active CN104259887B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109202110A (en) * 2018-11-20 2019-01-15 上海麦迅机床工具技术有限公司 the positioning chuck of automatic processing system
CN112809389A (en) * 2020-12-30 2021-05-18 福建钜丰汽车配件有限公司 Efficient piston drilling and boring integrated machine
CN114770178A (en) * 2022-05-13 2022-07-22 安徽省恒泰动力科技有限公司 Piston heavy boring sealing positioning device and air tightness detection method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583631A (en) * 1981-08-04 1986-04-22 Aioi Keiki K.K. Apparatus for positioning and clamping work clamp pallet for machine tools
JP2006007334A (en) * 2004-06-22 2006-01-12 Pascal Engineering Corp Positioning device
CN201844772U (en) * 2010-09-20 2011-05-25 常州市明宇交通器材有限公司 Automobile rear foglight mistake-proofing detection
CN201970149U (en) * 2011-02-17 2011-09-14 亿达日平机床有限公司 Rod-type pneumatic distinguishing device for detecting materials
CN102335831A (en) * 2011-08-11 2012-02-01 温州瑞明工业股份有限公司 Casting tool detection fixture and detection method thereof
CN202964097U (en) * 2012-11-30 2013-06-05 山东滨州渤海活塞股份有限公司 Piston air valve pit processing mistake-proof device
CN203158117U (en) * 2013-01-23 2013-08-28 上海福耀客车玻璃有限公司 Accurate mistake-proofing positioning device of automobile front glass base
CN203236009U (en) * 2012-11-12 2013-10-16 苏州昌恒精密金属压铸有限公司 Pneumatic detection mistake-proofing device
CN204123137U (en) * 2014-09-24 2015-01-28 安庆雅德帝伯活塞有限公司 Piston precision processes multi-functional error-proofing tool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583631A (en) * 1981-08-04 1986-04-22 Aioi Keiki K.K. Apparatus for positioning and clamping work clamp pallet for machine tools
JP2006007334A (en) * 2004-06-22 2006-01-12 Pascal Engineering Corp Positioning device
CN201844772U (en) * 2010-09-20 2011-05-25 常州市明宇交通器材有限公司 Automobile rear foglight mistake-proofing detection
CN201970149U (en) * 2011-02-17 2011-09-14 亿达日平机床有限公司 Rod-type pneumatic distinguishing device for detecting materials
CN102335831A (en) * 2011-08-11 2012-02-01 温州瑞明工业股份有限公司 Casting tool detection fixture and detection method thereof
CN203236009U (en) * 2012-11-12 2013-10-16 苏州昌恒精密金属压铸有限公司 Pneumatic detection mistake-proofing device
CN202964097U (en) * 2012-11-30 2013-06-05 山东滨州渤海活塞股份有限公司 Piston air valve pit processing mistake-proof device
CN203158117U (en) * 2013-01-23 2013-08-28 上海福耀客车玻璃有限公司 Accurate mistake-proofing positioning device of automobile front glass base
CN204123137U (en) * 2014-09-24 2015-01-28 安庆雅德帝伯活塞有限公司 Piston precision processes multi-functional error-proofing tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109202110A (en) * 2018-11-20 2019-01-15 上海麦迅机床工具技术有限公司 the positioning chuck of automatic processing system
CN109202110B (en) * 2018-11-20 2023-11-24 上海临世机电工程有限公司 Positioning chuck of automatic processing system
CN112809389A (en) * 2020-12-30 2021-05-18 福建钜丰汽车配件有限公司 Efficient piston drilling and boring integrated machine
CN112809389B (en) * 2020-12-30 2023-02-10 福建钜丰汽车配件有限公司 Efficient piston drilling and boring integrated machine
CN114770178A (en) * 2022-05-13 2022-07-22 安徽省恒泰动力科技有限公司 Piston heavy boring sealing positioning device and air tightness detection method thereof

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