CN201677198U - Special clamp for center hole drilling and end surface scrapping of main crank of crank shaft - Google Patents
Special clamp for center hole drilling and end surface scrapping of main crank of crank shaft Download PDFInfo
- Publication number
- CN201677198U CN201677198U CN2010201963615U CN201020196361U CN201677198U CN 201677198 U CN201677198 U CN 201677198U CN 2010201963615 U CN2010201963615 U CN 2010201963615U CN 201020196361 U CN201020196361 U CN 201020196361U CN 201677198 U CN201677198 U CN 201677198U
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- Prior art keywords
- clamp body
- axial
- oil cylinder
- workpiece
- end surface
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- Expired - Lifetime
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- 238000005553 drilling Methods 0.000 title abstract 2
- 238000007790 scraping Methods 0.000 claims description 13
- 244000309464 bull Species 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model relates to a special clamp for center hole drilling and end surface scrapping of a main crank of a crank shaft, which comprises an L-shaped clamp body, a base, an upper oil cylinder, a V-shaped support frame, a projected block and an axial supporter, wherein the base is arranged at the lower part of the clamp body, the upper oil cylinder is arranged at the upper part of the clamp body, the V-shaped support frame is arranged on the base and is used for supporting a rod body of a workpiece, the projected block is arranged at the middle part of the clamp body and is provided with an inclined surface matched with the shape of a step inclined surface arranged on the crank, the axial supporter is arranged at the middle part of the clamp body, a V-shaped clamp head used for limiting the position of a large outer circle of the workpiece is connected at the lower end of the upper oil cylinder, a lower oil cylinder is also arranged at the lower part of the clamp body, the front end of a piston of the lower oil cylinder is hinged with one end of a lever, the other end of the lever is connected with the axial clamp head, and the large outer circle of the workpice is positioned between the adjustable supporter and the axial clamp head. The utility model has the advantages of simple positioning and installing structure, easy installation, accurate and unified processing position, stable product quality, one-step installation clamping of the workpiece, synchronous proceeding of the processing and high production efficiency.
Description
(1) technical field:
The utility model 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 utility model 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 utility model 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, one end of the piston nose of this time oil cylinder and a lever is hinged, 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 utility model 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 utility model and good effect:
The utility model positioning and mounting structure 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 utility model is described in further details:
Accompanying drawing 1 is the structural representation of the utility model embodiment.
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 utility model embodiment, 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 utility model, and protection domain of the present utility model is not constituted any limitation.
Certainly, under inventive concept of the present utility model, the utility model 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 domain of the present utility model 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, one end of the piston nose of this time oil cylinder and a lever is hinged, 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 |
|---|---|---|---|
| CN2010201963615U CN201677198U (en) | 2010-05-12 | 2010-05-12 | Special clamp for center hole drilling and end surface scrapping of main crank of crank shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201963615U CN201677198U (en) | 2010-05-12 | 2010-05-12 | Special clamp for center hole drilling and end surface scrapping of main crank of crank shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201677198U true CN201677198U (en) | 2010-12-22 |
Family
ID=43342259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201963615U Expired - Lifetime CN201677198U (en) | 2010-05-12 | 2010-05-12 | Special clamp for center hole drilling and end surface scrapping of main crank of crank shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201677198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801934A (en) * | 2014-02-14 | 2014-05-21 | 浙江汇豪机械制造有限公司 | Crankshaft steel ball striking necking clamp |
-
2010
- 2010-05-12 CN CN2010201963615U patent/CN201677198U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801934A (en) * | 2014-02-14 | 2014-05-21 | 浙江汇豪机械制造有限公司 | Crankshaft steel ball striking necking clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |