CN101837549A - Special fixture for bent axle main crank auger centre hole scraping end surface - Google Patents
Special fixture for bent axle main crank auger centre hole scraping end surface Download PDFInfo
- Publication number
- CN101837549A CN101837549A CN201010177601A CN201010177601A CN101837549A CN 101837549 A CN101837549 A CN 101837549A CN 201010177601 A CN201010177601 A CN 201010177601A CN 201010177601 A CN201010177601 A CN 201010177601A CN 101837549 A CN101837549 A CN 101837549A
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- clamp body
- workpiece
- bent axle
- end surface
- chuck
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Abstract
The invention relates to a special fixture for a bent axle main crank auger centre hole scraping end surface, comprising an L-shaped fixture body, a base, an upper oil cylinder, a V-shaped bracket, a lug and an axial support, wherein the base is installed on the lower part of the fixture body, the upper oil cylinder is installed on the upper part of the fixture body, the V-shaped bracket is used for supporting the rod body of a workpiece and is arranged on the base, the lug is installed in the middle of the fixture body and has a slope the shape of which is matched with the shape of the slope of the step on a crank, and the axial support is installed in the middle of the fixture body; the lower end of the piston of the upper cylinder is connected with a V-shaped chuck used for limiting the large excircle of the workpiece; and the lower part of the fixture body is also provided with a lower oil cylinder, the front end of the piston of the lower oil cylinder is hinged with one end of a lever, and the other end of the lever is connected with an axial chuck, and the big excircle of the workpiece is arranged between the adjustable support and the axial chuck. The invention has simple positioning and installing structure, easy installation, accurate and unified processing position and stable product quality; and the workpiece is clamped once, is processed synchronously and has high production efficiency.
Description
(1) technical field:
The present invention relates to a kind of clamping tool for machine work, especially a kind of bent axle main crank drill centers scraping end surface special fixture.
(2) background technology:
The bent axle main crank is one of common parts in the mechanical field, the integrative-structure that it is made up of the shaft of a big cylindrical and a side, and big cylindrical also has the crank hole that cooperates usefulness with crank-pin.Bent axle main crank drill centers scraping end surface is important operation in the bent axle main crank cutting process, and traditional processing method is to utilize anchor clamps that part is clamped, and cuts end face drill centers more earlier.In the prior art, its anchor clamps that adopt are comparatively simple, need to finish clamping work pieces by hand and unclamp workpiece action in operating process.The workpiece positioning accuracy is poor, and handling speed is slow, changes inconvenient operation, needs manual assistance to finish, and has increased labour intensity, brings very big inconvenience to processing, can't guarantee that product technology requires and requirements of mass production.
(3) summary of the invention:
The present invention is primarily aimed at the deficiencies in the prior art, provide a kind of simple to operate, save workpiece process time, improve the bent axle main crank drill centers scraping end surface special fixture of product processing quality.
Technical solution of the present invention is as follows:
A kind of bent axle main crank drill centers scraping end surface special fixture, it is characterized in that: it comprises L-shaped clamp body, be installed on the base of clamp body bottom, be installed on the upper cylinder on clamp body top, be installed on the V-shaped rest of the shaft that is used for holding workpieces on the base, be installed on clamp body middle part have with crank on the projection on the inclined-plane that matches of step inclined plane shape, be installed on the axially mounting at clamp body middle part, the piston lower end of described upper cylinder is connected with the V-clevis of the big cylindrical that is used for spacing workpiece, described clamp body bottom also is equipped with down oil cylinder, the piston nose of this time oil cylinder links mutually with an end of a lever, the other end of lever is connected with axial chuck, and the big cylindrical of workpiece is in adjustable support and axially between the chuck.
The course of work of the present invention is as follows:
With the workpiece water placing flat to Working position, shaft is supported on the V-shaped rest, the locate mode of V-type is difficult for eccentric when workpiece is clamped, step inclined-plane on projection inclined-plane and the crank is matched, realize the spacing of above-below direction, start oil cylinder down, the piston nose activation lever of following oil cylinder and the axial chuck axially-movable that the lever other end is connected are pressed in axial chuck in the crank on the covering of the fan, under the acting in conjunction of adjustable support and axial chuck, workpiece spindle simultaneously, starts upper cylinder to being positioned, V-clevis moves downward with the piston of upper cylinder, until with the big excircle of workpiece to locking, thereby six-freedom degree spacing of finishing workpiece, the machining and the drill centers of beginning end face, after machining, on, following oil cylinder reverse operation, axially chuck and V-clevis unclamp, and take out workpiece.
Technological merit of the present invention and good effect:
Positioning and mounting structure of the present invention is simple, installs easily, and Working position is accurate, unified, constant product quality; Thereby anchor clamps can bore the processing of two centre bore and scraping end surface realization drill centers scraping end surface simultaneously, clamping of workpiece, and the production efficiency height is carried out in processing synchronously.Realized goal of the invention easily.
Further technical scheme is:
Described axial chuck is axial bull chuck, and the described axially mounting that is installed on the clamp body middle part is at least two.
The positive role of this technical scheme is that it can prevent the end face run-out of workpiece in the process effectively.
The technical scheme in another step is:
The described axially mounting that is installed on the clamp body middle part is three, and they are equilateral triangle and distribute.
This technical scheme is for preventing that the end face run-out of workpiece has a positive effect in the process.
Further technical scheme is again:
The described V-clevis that is connected in the piston lower end of upper cylinder flexibly connects by guide rail and the clamp body that is installed on the clamp body.
The positive role of this technical scheme is, the force direction that it can guarantee V-clevis vertically downward.
The technical scheme in another step is:
The described axially mounting that is installed on the clamp body middle part is axial adjustable support.
It is convenient to axially finely tune, and realizes the axial location of workpiece better.
(4) description of drawings:
Below with reference to drawings and Examples the present invention is described in further details:
Accompanying drawing 1 is the structural representation of the embodiment of the invention.
Accompanying drawing 2 is an A-A view embodiment illustrated in fig. 1.
Each sequence number is respectively in the accompanying drawing: 1, base; 2, support plate; 3, V-shaped rest; 4, lever; 5, following oil cylinder; 6, clamp body; 7, adjustable support; 8, upper cylinder; 9, V-clevis; 10, workpiece; 11, guide rail; 12, axial bull chuck; 13, lever; 14, following oil cylinder piston; 15, projection; 16, upper cylinder piston
(5) specific embodiment:
Referring to accompanying drawing 1,2, a kind of bent axle main crank drill centers scraping end surface special fixture shown in the embodiment of the invention, comprise L-shaped clamp body 6, be installed on the base 1 of clamp body bottom, be installed on the upper cylinder 8 on clamp body top, be installed on the V-shaped rest 3 of the shaft that is used for holding workpieces on the base, be installed on clamp body middle part have with crank on the projection 15 on the inclined-plane that matches of step inclined plane shape, be installed on the clamp body middle part and be the axially mounting 7 that equilateral triangle distributes, piston 16 lower ends of described upper cylinder 8 are connected with the V-clevis 9 of the big cylindrical that is used for spacing workpiece, and V-clevis 9 flexibly connects with clamp body by the guide rail 11 that is installed on the clamp body.The clamp body bottom also is equipped with down oil cylinder 5, and piston 14 front ends of this time oil cylinder link mutually with an end of lever 13, and the other end of lever is connected with axial bull chuck 12.
To Working position, make crank hole insert projection 15 the workpiece water placing flat, shaft is supported on the V-shaped rest 9, the locate mode of V-type is difficult for eccentric when workpiece is clamped, and at this moment, the big cylindrical of workpiece is in adjustable support 7 and axially between the bull chuck 12.Start oil cylinder 5 down, the piston 14 front-end driven levers of following oil cylinder and axial bull chuck 12 axially-movables that the lever other end is connected, axial bull chuck is pressed in the crank on the covering of the fan, under the acting in conjunction of adjustable support 7 and axial bull chuck 12, workpiece spindle is to being positioned, simultaneously, start upper cylinder 8, V-clevis 9 moves downward along guide rail 11 with upper cylinder piston 16, until with the big excircle of workpiece to locking, thereby finish six-freedom degree spacing of workpiece, the machining and the drill centers of beginning end face, after machining, on, following oil cylinder reverse operation, axially bull chuck and V-clevis unclamp, and take out workpiece.
Above-mentioned drawings and Examples only are used to illustrate the present invention, and protection scope of the present invention is not constituted any limitation.
Certainly, under inventive concept of the present invention, the present invention has multiple form of implementation and is equal to replacement scheme, and this reads and need not pay creative work behind this specification and can reveal again to those skilled in the art, has not just described in detail at this.Adopt the above-mentioned replacement scheme that is equal to fall into protection scope of the present invention certainly.
Claims (5)
1. bent axle main crank drill centers scraping end surface special fixture, it is characterized in that: it comprises L-shaped clamp body, be installed on the base of clamp body bottom, be installed on the upper cylinder on clamp body top, be installed on the V-shaped rest of the shaft that is used for holding workpieces on the base, be installed on clamp body middle part have with crank on the projection on the inclined-plane that matches of step inclined plane shape, be installed on the axially mounting at clamp body middle part, the piston lower end of described upper cylinder is connected with the V-clevis of the big cylindrical that is used for spacing workpiece, described clamp body bottom also is equipped with down oil cylinder, the piston nose of this time oil cylinder links mutually with an end of a lever, the other end of lever is connected with axial chuck, and the big cylindrical of workpiece is in adjustable support and axially between the chuck.
2. bent axle main crank drill centers scraping end surface special fixture according to claim 1, it is characterized in that: described axial chuck is axial bull chuck, the described axially mounting that is installed on the clamp body middle part is at least two.
3. bent axle main crank drill centers scraping end surface special fixture according to claim 1 is characterized in that: the described axially mounting that is installed on the clamp body middle part is three, and they are equilateral triangle and distribute.
4. bent axle main crank drill centers scraping end surface special fixture according to claim 1 is characterized in that: the described V-clevis that is connected in the piston lower end of upper cylinder flexibly connects by guide rail and the clamp body that is installed on the clamp body.
5. according to the arbitrary described bent axle main crank drill centers scraping end surface special fixture of claim 1～4, it is characterized in that: the described axially mounting that is installed on the clamp body middle part is axial adjustable support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177601A CN101837549A (en) | 2010-05-12 | 2010-05-12 | Special fixture for bent axle main crank auger centre hole scraping end surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177601A CN101837549A (en) | 2010-05-12 | 2010-05-12 | Special fixture for bent axle main crank auger centre hole scraping end surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101837549A true CN101837549A (en) | 2010-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010177601A Pending CN101837549A (en) | 2010-05-12 | 2010-05-12 | Special fixture for bent axle main crank auger centre hole scraping end surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837549A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430930A (en) * | 2011-10-09 | 2012-05-02 | 杜志元 | Device for automatically positioning and clamping eccentric wheel |
| CN102773518A (en) * | 2012-07-31 | 2012-11-14 | 重庆歇马机械曲轴有限公司 | Processing device and processing method of through hole of crank throw of crank shaft |
| CN111922960A (en) * | 2020-08-13 | 2020-11-13 | 立讯智造(浙江)有限公司 | Clamping device |
-
2010
- 2010-05-12 CN CN201010177601A patent/CN101837549A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430930A (en) * | 2011-10-09 | 2012-05-02 | 杜志元 | Device for automatically positioning and clamping eccentric wheel |
| CN102773518A (en) * | 2012-07-31 | 2012-11-14 | 重庆歇马机械曲轴有限公司 | Processing device and processing method of through hole of crank throw of crank shaft |
| CN102773518B (en) * | 2012-07-31 | 2014-05-21 | 重庆歇马机械曲轴有限公司 | Processing device and processing method of through hole of crank throw of crank shaft |
| CN111922960A (en) * | 2020-08-13 | 2020-11-13 | 立讯智造(浙江)有限公司 | Clamping device |
| CN111922960B (en) * | 2020-08-13 | 2021-10-01 | 立讯智造(浙江)有限公司 | Clamping device |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100922 |