CN207464772U - Compressor crosshead body pin hole fixture - Google Patents

Compressor crosshead body pin hole fixture Download PDF

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Publication number
CN207464772U
CN207464772U CN201721629151.9U CN201721629151U CN207464772U CN 207464772 U CN207464772 U CN 207464772U CN 201721629151 U CN201721629151 U CN 201721629151U CN 207464772 U CN207464772 U CN 207464772U
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CN
China
Prior art keywords
clamp
disk
pin hole
positioning
workpiece
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Application number
CN201721629151.9U
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Chinese (zh)
Inventor
苏静
赵彬涵
刘斌
高志峰
郭其麟
陈晓丽
周世秀
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.)
Chongqing Gas Compressor Factory Co Ltd
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Chongqing Gas Compressor Factory Co Ltd
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Publication date
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Priority to CN201721629151.9U priority Critical patent/CN207464772U/en
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Abstract

The utility model belongs to tooling and fixture technical field, more particularly to a kind of compressor crosshead body pin hole fixture.Including clamp body and connect disk, it is described to connect disk for being connect with lathe spindle, and connect the centre bore of disk and lathe spindle coaxial arrangement, the clamp body is mounted on and connects on disk, the lower part of the clamp body is equipped with positioning surface and the locating piece of centre bore axis parallel for connecing disk, the clamp body is equipped with hold-down mechanism, and transverse plane and the locating piece cooperation of workpiece lower end position, and pass through the transverse plane of hold-down mechanism workpiece pressing upper end.The beneficial effects of the utility model are:It is set by the positioning surface of locating piece with connecing the axis parallel of center hole, it ensure that pin aperture centerline and the lathe spindle of the workpiece on clamp body are coaxial, setting connects disk and is convenient for assembling with machine tool chief axis, reduces the difficulty of crosshead body pin hole processing and loading clamp positioning, improves machining accuracy.

Description

Compressor crosshead body pin hole fixture
Technical field
The utility model belongs to tooling and fixture technical field, more particularly to a kind of compressor crosshead body pin hole fixture.
Background technology
Crosshead body is that compressor completes one of vital part moved back and forth, its pin hole dimensional accuracy and geometric tolerance It is it is required that very high.If dimensional accuracy is exceeded, will be unable to ensure that cross pin contacts, and pin hole is crosshead body with the uniform of pin hole The machining benchmark of the significant dimensions such as outer circle, connection screw thread, its size directly affect other critical sizes of crosshead body.Although The upper and lower side of crosshead body locally has a planar structure, but crosshead body outer profile also has an arcwall face, the planar structure of upper and lower side without Method directly carries out location and installation in center lathe, and clamping operating difficulties is difficult to ensure that pin hole and lathe spindle in clamping process Concentricity.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of compressor crosshead bodies Pin hole fixture, for solving the problems, such as that crosshead body pin hole processing and loading clamp location difficulty, machining accuracy are low etc. in the prior art.
In order to achieve the above objects and other related objects, the utility model provides a kind of compressor crosshead body pin hole folder Tool including clamp body and connects disk, described to connect disk for being connect with lathe spindle, and the centre bore for connecing disk is coaxially set with lathe spindle It puts, the clamp body is mounted on and connects on disk, and the lower part of the clamp body is equipped with positioning surface and the centre bore axial line for connecing disk Parallel locating piece, the clamp body are equipped with hold-down mechanism, and transverse plane and the locating piece cooperation of workpiece lower end position, and pass through The transverse plane of hold-down mechanism workpiece pressing upper end.
The beneficial effects of the utility model are:It is set by the positioning surface of locating piece with connecing the axis parallel of center hole It puts, ensure that the pin aperture centerline of workpiece on clamp body and lathe spindle are coaxial, setting connects disk and is convenient for and lathe master Axis assembles, and reduces the difficulty of crosshead body pin hole processing and loading clamp positioning, improves machining accuracy.
Further, the locating piece is located by connecting by straight pin and clamp body, and is passed through soket head cap screw and be locked, Assembling is fixed simple, improves the precision of assembling positioning.
Further, the positioning surface of the locating piece and the depth of parallelism of centre bore axial line for connecing disk are 0.01.
Further, the top of the clamp body is equipped with the Balance Iron that can be dismantled.
Further, the Balance Iron is arcuate structure.
Further, the Balance Iron is connected by the first studs and the locking of the top of the first hex nut and clamp body It connects.
Advantageous effect using above-mentioned further scheme is:In the pin hole of workpieces processing, workpiece and fixture can turn together Dynamic, setting Balance Iron causes the weight above and below fixture to keep balance, improves the stationarity in fixture rotation process.
Further, the hold-down mechanism includes pressing plate, spring and the second studs, the lower end of second studs It is fixedly connected after sequentially passing through pressing plate, spring with clamp body, the upper end of second studs is equipped with the second hex nut, rotation Turn the transverse plane that the second hex nut driving pressing plate downlink pushes down workpiece upper end.
Further, the clamp body is equipped with mounting hole, the pressing plate include with the vertical portion of mounting hole clearance fit and For pushing down the horizontal part of workpiece upper end, the vertical portion and horizontal part join end to end, and the vertical portion is internally provided with cavity, The lower end of second studs passes through cavity.
Advantageous effect using above-mentioned further scheme is:Realize that the clamping of workpiece is determined by positioning surface and pressing plate cooperation Position, by rotating the second hex nut convenient for the quick impaction state for adjusting pressing plate, setting spring to loosen the second hexagonal spiral shell Mother, pressing plate are resetting under spring force.
Further, described to connect disk and the opposite one end of clamp body is equipped with positioning protrusion, the clamp body is equipped with and positions The positioning groove of male cooperation, the positioning protrusion are stretched into positioning groove and are assembled, and pass through hex bolts with clamp body positioning It is locked, easy to process, high precision machining improves positioning accuracy.
It the clamp body and connects disk and is made of cast iron HT200, wearability, heat resistance are good, damping good, improve fixture Performance.
Description of the drawings
Fig. 1 is the front view of the compressor crosshead body pin hole fixture of the utility model embodiment;
Fig. 2 is the B direction views in the utility model Fig. 1.
Piece mark explanation
1 hex bolts;
2 connect disk;
3 clamp bodies;
4 Balance Irons;
5 first hex nuts;
6 first studs;
7 second hex nuts;
8 second studs;
9 springs;
10 pressing plates;
11 soket head cap screws;
12 locating pieces;
13 straight pins;
14 workpiece.
Specific embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that cited such as " on ", " under " in this specification, "left", "right", " centre " and " one " term, also Only understanding rather than to limit the enforceable range of the utility model for ease of narration, relativeness is altered or modified, In the case where changing technology contents without essence, when being also considered as the enforceable scope of the utility model.
As depicted in figs. 1 and 2, the compressor crosshead body pin hole fixture of the utility model embodiment, including 3 He of clamp body It connects disk 2, clamp body 3 and connects disk 2 and be made of cast iron HT200, the wearability and heat resistance of cast iron HT200 is preferable, and has It is good damping, be conducive to improve the stability and service life of fixture.Disk 2 is connect for being connect with lathe spindle, and connect disk 2 Centre bore and lathe spindle be coaxially disposed.Clamp body 3 is mounted on and connects on disk 2, connects the medial surface of disk 2 and the outside of clamp body 3 Face fits closely, connect disk 2 and the opposite one end of clamp body 3 is equipped with positioning protrusion, and clamp body 3 is equipped with and positioning protrusion cooperation Positioning groove, positioning protrusion is stretched into positioning groove to be assembled, and pass through hex bolts 1 and lock so that connecing disk 2 with the positioning of clamp body 3 Fixed, assembling positioning is simple, and positioning accuracy is high.
As depicted in figs. 1 and 2, the lower part of clamp body 3 is equipped with locating piece 12, and locating piece 12 passes through straight pin 13 and clamp body 3 are located by connecting, and pass through soket head cap screw 11 and be locked, and the precision of location and installation is improved by straight pin 13.Locating piece 12 Locating slot equipped with indent, the positioning surface for positioning trench bottom are arranged in parallel with the centre bore axial line for connecing disk 2, and locating piece 12 is determined The depth of parallelism of centre bore axial line A that plane and the aperture for connecing disk 2 are D1 is 0.01.The top of clamp body 3 is equipped with and can dismantle Balance Iron 4, the quantity of Balance Iron 4 can carry out selection replacement according to different size crosshead body, and Balance Iron 4 is arc knot Structure, by the weight of 4 fixture lower part of Balance Iron for setting arc and the distribution of weight equilibrium on top, in the mistake of pin hole processing Be conducive to improve the stability of fixture in journey.Balance Iron 4 passes through the first studs 6 and the first hex nut 5 and clamp body 3 Top locking connection.During assembling, first by Balance Iron 4 by the first studs 6 and 5 installation folder of the first hex nut specific 3, Then it by clamp body 3 and connects disk 2 again and is connected by hex bolts 1, assembling is simple and convenient.
As depicted in figs. 1 and 2, clamp body 3 is equipped with hold-down mechanism, and transverse plane and the locating piece 12 of 14 lower end of workpiece coordinate Positioning, and pass through the transverse plane of 14 upper end of hold-down mechanism workpiece pressing.Hold-down mechanism includes pressing plate 10,9 and second double end of spring Stud 8, the lower end of the second studs 8 is fixedly connected after sequentially passing through pressing plate 10, spring 9 with clamp body 3, when pressing plate 10 is pushed down During workpiece 14, spring 9 is in compressive state.The upper end of second studs 8 is equipped with the second hex nut being threadedly coupled with it 7, rotation the second hex nut 7 driving 10 downlink of pressing plate pushes down the transverse plane of 14 upper end of workpiece.Clamp body 3 is equipped with mounting hole, Pressing plate 10 includes horizontal part with the vertical portion of mounting hole clearance fit and for pushing down 14 upper end transverse plane of workpiece, vertical portion and Horizontal part joins end to end to form inverted L shape structure, and vertical portion is internally provided with cavity, and the lower end of the second studs 8 passes through cavity. When the transverse plane of 14 lower end of workpiece is positioned with the positioning surface of locating piece 12, the transverse plane of workpiece upper end is higher by mounting hole top end Face so that pressing plate 10 can direct 14 upper end of workpiece pressing transverse plane, the height H1 of pin hole center and positioning surface, when processing is high When spending the different workpiece of H1, it is only necessary to replace the locating piece of different height, replace it is simple and convenient, it is applied widely.
When the pin hole for processing a diameter of D2, machine tool chief axis and the centre bore for connecing disk 2 are coaxially connected, by 14 lower end of workpiece The positioning surface that transverse plane withstands locating piece 12 is positioned, and pressing plate 10 pushes down the transverse plane of 14 upper end of workpiece, realizes workpiece 14 Positioning and clamping, machine tool chief axis rotation just drive fixture and workpiece to rotate together, complete the processing of workpiece pin hole.
The fixture of the utility model ensure that coaxial with lathe spindle by connecing center hole, pass through the positioning surface of locating piece It ensure that the transverse plane of workpiece lower end and connect center hole axis parallel, ensure that the axial line and lathe of the pin hole processed Main shaft is coaxial, accurate positioning, adaptable, simple to operate, securely and reliably, improves the precision of processing dimension.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.

Claims (10)

1. a kind of compressor crosshead body pin hole fixture, it is characterised in that:Including clamp body and connect disk, the disk that connects is used for and vehicle Bed main shaft connection, and connect the centre bore of disk and be coaxially disposed with lathe spindle, the clamp body is mounted on and connects on disk, the clamp body Lower part be equipped with positioning surface and the locating piece of centre bore axis parallel for connecing disk, the clamp body is equipped with compacting machine Structure, transverse plane and the locating piece cooperation of workpiece lower end position, and pass through the transverse plane of hold-down mechanism workpiece pressing upper end.
2. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:The locating piece passes through cylinder Pin and clamp body are located by connecting, and pass through soket head cap screw and be locked.
3. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:The positioning surface of the locating piece It is 0.01 with the depth of parallelism of centre bore axial line for connecing disk.
4. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:The top of the clamp body is set There is the Balance Iron that can be dismantled.
5. compressor crosshead body pin hole fixture according to claim 4, it is characterised in that:The Balance Iron is arc knot Structure.
6. compressor crosshead body pin hole fixture according to claim 4, it is characterised in that:The Balance Iron passes through first Studs and the locking connection of the top of the first hex nut and clamp body.
7. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:The hold-down mechanism includes pressure Plate, spring and the second studs, the lower end of second studs, which sequentially passes through to fix with clamp body after pressing plate, spring, to be connected It connects, the upper end of second studs is equipped with the second hex nut, and rotation the second hex nut driving pressing plate downlink pushes down work The transverse plane of part upper end.
8. compressor crosshead body pin hole fixture according to claim 7, it is characterised in that:The clamp body is equipped with peace Hole is filled, the pressing plate includes the horizontal part with the vertical portion of mounting hole clearance fit and for pushing down workpiece upper end, described vertical Portion and horizontal part join end to end, and the vertical portion is internally provided with cavity, and the lower end of second studs passes through cavity.
9. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:It is described to connect disk and clamp body phase To one end be equipped with positioning protrusion, the clamp body is equipped with and the positioning groove of positioning protrusion cooperation, and the positioning protrusion stretches Enter in positioning groove and assembled, and pass through hex bolts and be locked with clamp body positioning.
10. compressor crosshead body pin hole fixture according to claim 1, it is characterised in that:The clamp body and connect disk It is made of cast iron HT200.
CN201721629151.9U 2017-11-29 2017-11-29 Compressor crosshead body pin hole fixture Active CN207464772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721629151.9U CN207464772U (en) 2017-11-29 2017-11-29 Compressor crosshead body pin hole fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721629151.9U CN207464772U (en) 2017-11-29 2017-11-29 Compressor crosshead body pin hole fixture

Publications (1)

Publication Number Publication Date
CN207464772U true CN207464772U (en) 2018-06-08

Family

ID=62258904

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721629151.9U Active CN207464772U (en) 2017-11-29 2017-11-29 Compressor crosshead body pin hole fixture

Country Status (1)

Country Link
CN (1) CN207464772U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501819A (en) * 2018-10-26 2019-03-22 中车南京浦镇车辆有限公司 A kind of mounting structure suitable for automatic driving vehicle derailing detection sensor
CN109623457A (en) * 2018-12-14 2019-04-16 咸阳圣亚机电设备有限公司 Speed-changer operation device housing lathe-use clamp and processing method
CN111002061A (en) * 2019-12-27 2020-04-14 南京信息职业技术学院 Rock drill handle body control valve hole turning tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501819A (en) * 2018-10-26 2019-03-22 中车南京浦镇车辆有限公司 A kind of mounting structure suitable for automatic driving vehicle derailing detection sensor
CN109623457A (en) * 2018-12-14 2019-04-16 咸阳圣亚机电设备有限公司 Speed-changer operation device housing lathe-use clamp and processing method
CN111002061A (en) * 2019-12-27 2020-04-14 南京信息职业技术学院 Rock drill handle body control valve hole turning tool

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