CN210550576U - A anchor clamps for bent axle processing - Google Patents
A anchor clamps for bent axle processing Download PDFInfo
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- CN210550576U CN210550576U CN201921003535.9U CN201921003535U CN210550576U CN 210550576 U CN210550576 U CN 210550576U CN 201921003535 U CN201921003535 U CN 201921003535U CN 210550576 U CN210550576 U CN 210550576U
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- clamping
- crankshaft
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- pressing plate
- bolt
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Abstract
The utility model relates to a clamp for crankshaft machining, which comprises a base and a V-shaped block clamping device; the two V-shaped block clamping devices are oppositely and fixedly arranged on the base in the left-right direction and are used for clamping main journals at two ends of the crankshaft; the method is characterized in that: the clamp further comprises a middle clamping device for clamping the middle section of the crankshaft, the middle clamping device comprises two clamping blocks and a locking assembly, and the two clamping blocks are oppositely arranged on the base in the front-back direction and are positioned between the two V-shaped block clamping devices; two tight pieces of clamp pass through behind the locking Assembly locking and press from both sides tight bent axle interlude, simple structure, convenient operation, convenient fixed bent axle can be used to bent axle auxiliary processing, have improved the machining precision of bent axle and the efficiency of its production, and anchor clamps in this application are formed by a plurality of part combinations, and the wearing and tearing part is changed in the detachable removal, has saved manufacturing cost, has reduced workman's intensity of labour, has gained good production economic benefits.
Description
Technical Field
The utility model relates to an anchor clamps field, specifically say, relate to an anchor clamps for bent axle processing.
Background
Clamps, also known as clamps, are devices used to quickly tighten a workpiece to maintain the workpiece in a correct relative position. The jig is an indispensable part for machining, and when a workpiece is machined, the workpiece must be mounted and clamped before machining in order to make the surface of the workpiece meet the technical requirements such as the dimension, the geometric shape, the mutual position precision with other surfaces and the like specified in the drawing. The crankshaft is special in shape, and ordinary clamping cannot meet machining requirements, so that machining efficiency is affected. For example, the crankshaft shown in fig. 1 to 3 needs different clamping for processing different planes, so different clamps are needed, most of the clamps are worn and replaced entirely, the processing is complicated, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, the clamping is convenient, the easy anchor clamps for bent axle processing of changing.
The utility model provides a technical scheme that above-mentioned problem adopted is: a clamp for crankshaft machining comprises a base and a V-shaped block clamping device; the two V-shaped block clamping devices are oppositely and fixedly arranged on the base in the left-right direction and are used for clamping main journals at two ends of the crankshaft; the method is characterized in that: the clamp further comprises a middle clamping device for clamping the middle section of the crankshaft, the middle clamping device comprises two clamping blocks and a locking assembly, and the two clamping blocks are oppositely arranged on the base in the front-back direction and are positioned between the two V-shaped block clamping devices; the two clamping blocks clamp the middle section of the crankshaft after being locked by the locking assembly.
Preferably, the clamping block is fixedly installed on the base through a first bolt, and the base is provided with a strip-shaped U-shaped hole for the first bolt to pass through.
Preferably, the locking assembly comprises a pressing plate and two second bolts, a pressing plate hole for placing the pressing plate is formed in the clamping block, and the pressing plate is horizontally placed through the pressing plate holes in the two clamping blocks; the two second bolts correspond to the two clamping blocks one to one, the upper wall surface of the pressing plate hole is communicated with the top surfaces of the clamping blocks through a bolt hole for mounting the second bolts, the second bolts are mounted in the bolt holes, and the bottom surfaces of the second bolts press the pressing plate downwards.
Preferably, the locking assembly comprises at least two long studs, four mounting holes which are distributed in a rectangular shape are formed in the clamping block, and the two long studs are mounted in the two mounting holes which are distributed in a diagonal line; after the two ends of the long stud are locked, the middle section of the crankshaft is locked between the two long studs.
Preferably, V type piece clamping device is including location V type piece and the V type piece of pushing down, location V type piece passes through locating pin fixed mounting on the base, push down V type piece and be located location V type piece above, connect through stud between the two, stud's top mounting nut pushes down location V type piece and the V type piece of pushing down through the nut is screwed to press down to press from both ends main shaft neck of tight bent axle.
Compared with the prior art, the utility model, have following advantage and effect: simple structure, convenient operation, convenient fixed bent axle can be used to bent axle auxiliary machining, have improved the machining precision of bent axle and the efficiency of its production, and anchor clamps in this application are formed by a plurality of part combinations, and the wearing and tearing part is changed in the removable unloading, has saved manufacturing cost, has reduced workman's intensity of labour, has gained good production economic benefits.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic front view structure diagram of a crankshaft in an embodiment of the present invention.
Fig. 2 is a schematic top view of the crankshaft in the embodiment of the present invention.
Fig. 3 is a left side view structure diagram of the crankshaft in the embodiment of the present invention.
Fig. 4 is a schematic front view of a clamp according to an embodiment of the present invention.
Fig. 5 is a schematic top view of a clamp according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a V-block clamping device in an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an intermediate clamping device according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a first locking assembly for clamping a crankshaft in an embodiment of the present invention.
Fig. 9 is a schematic top view of the structure of fig. 8.
Fig. 10 is a schematic front view of the embodiment of the present invention, in which a second locking assembly is used to clamp a crankshaft.
Fig. 11 is a schematic top view of the structure of fig. 10.
Description of reference numerals:
a crankshaft a; main journals a 1; crank arm a 2; an eccentric shaft a 3; the tilt axis a 4;
a base 1; a U-shaped hole 11; a V-shaped block clamping device 2; positioning the V-shaped block 21; pressing the V-shaped block 22 downwards; positioning pins 23; a stud 24; a nut 25; an intermediate clamping device 3; a clamping block 31; press plate holes 311; mounting holes 312; bolt No. 4; a pressing plate 5; a second bolt 6; a long stud 7.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
See fig. 1-11.
As shown in fig. 1 to 3, the structure of the crankshaft a includes main journals a1 at two ends, the main journal a1 is connected with a crank arm a2, the crank arm a2 is connected with an eccentric shaft a3, two sections of the eccentric shaft a3 are connected through a section of inclined shaft a4, and the inclined shaft a4 is a middle section of the crankshaft a.
The embodiment provides a clamp for processing the crankshaft, which comprises a base 1, a V-shaped block clamping device 2 and an intermediate clamping device 3. Two V-shaped block clamping devices 2 are arranged, are oppositely and fixedly arranged on the base 1 in the left-right direction and are used for clamping main journals a1 at two ends of the crankshaft; the intermediate clamping device 3 serves for clamping the crankshaft intermediate section, i.e. for clamping the tilting axis a 4.
The V-shaped block clamping device 2 comprises a positioning V-shaped block 21 and a pressing V-shaped block 22, the positioning V-shaped block 21 is fixedly installed on the base 1 through a positioning pin 23, the pressing V-shaped block 22 is located on the positioning V-shaped block 21 and connected with the positioning V-shaped block 21 through a double-end stud 24, a nut 25 is installed at the top end of the double-end stud 24, the pressing V-shaped block 21 and the pressing V-shaped block 22 are screwed through the nut 25, and therefore main journals a1 at two ends of a crankshaft are clamped.
The middle clamping device 3 comprises two clamping blocks 31 and a locking assembly, wherein the two clamping blocks 31 are oppositely arranged on the base 1 in the front-back direction and are positioned between the two V-shaped block clamping devices 2; the two clamping blocks 31 clamp the middle section of the crankshaft after being locked by the locking assembly. The clamping block 31 is fixedly installed on the base 1 through a first bolt 4, and the base 1 is provided with a strip-shaped U-shaped hole 11 for the first bolt 4 to pass through. The U-shaped hole 11 is arranged to facilitate the adjustment of the distance between the two clamping blocks 31.
In the embodiment, considering that the placing postures of the crankshaft a are different when different surfaces are machined, two locking assemblies are designed, wherein the first locking assembly comprises a pressing plate 5 and two second bolts 6, a pressing plate hole 311 for placing the pressing plate 5 is formed in the clamping block 31, and the pressing plate 5 is horizontally placed through the pressing plate holes 311 in the two clamping blocks 31; two No. two bolts 6 and two clamping block 31 one-to-one correspond, communicate through a bolt hole that is used for installing No. two bolt 6 between the upper wall face of clamp plate hole 311 and the top surface of clamping block 31, and No. two bolt 6 is installed in this bolt hole, and its bottom surface pushes down clamp plate 5.
The second locking assembly comprises two long studs 7, four mounting holes 312 which are distributed in a rectangular shape are formed in the clamping block 31, and the two long studs 7 are mounted in the two mounting holes 312 which are distributed in a diagonal line; after the two ends of the long stud 7 are locked, the middle section of the crankshaft is locked between the two long studs 7.
As shown in fig. 8 and 9, when one surface of the crankshaft a is machined, the inclined shaft a4 on the crankshaft a is flat, and there is no height difference between two ends of the inclined shaft a4 in the vertical direction, at this time, by using the first locking assembly, the clamping process is as follows: firstly, main journals a1 at two ends of a crankshaft a are placed in V grooves of a positioning V-shaped block 21, then a downward pressing V-shaped block 22 is installed on the positioning V-shaped block 21 by using a stud 24, and the positioning V-shaped block 21 and the downward pressing V-shaped block 22 are tightly pressed by tightening a nut 25 so as to clamp the main journals a1 at two ends of the crankshaft a; the two clamping blocks 31 are moved along the U-shaped hole 11, the distance between the two clamping blocks 31 is adjusted in place, after the distance is adjusted in place, the first bolt 4 is used for fixedly mounting the clamping blocks 31 on the base 1, then the two ends of the pressing plate 5 are placed in the pressing plate holes 311 on the two clamping blocks 31, the second bolt 6 is used for applying pressure to the pressing plate 5 downwards, and therefore the crankshaft a is clamped, namely the crank arm a2 can be milled, and oil hole drilling is conducted on the eccentric shaft a 3.
As shown in fig. 10 and 11, when the side surface of the crankshaft a is machined, the inclined shaft a4 on the crankshaft a is placed vertically, and there is a height difference between two ends of the inclined shaft a4 in the vertical direction, at this time, by using the second locking assembly, the clamping process is as follows: firstly, main journals a1 at two ends of a crankshaft a are placed in V grooves of a positioning V-shaped block 21, then a downward pressing V-shaped block 22 is installed on the positioning V-shaped block 21 by using a stud 24, and the positioning V-shaped block 21 and the downward pressing V-shaped block 22 are tightly pressed by tightening a nut 25 so as to clamp the main journals a1 at two ends of the crankshaft a; the two clamping blocks 31 are moved along the U-shaped hole 11, the distance between the two clamping blocks 31 is adjusted in place, after the distance is adjusted in place, the first bolt 4 is used for fixedly installing the clamping blocks 31 on the base 1, then the two long studs 7 are installed in the installing holes 312 formed in the two clamping blocks 31 in a diagonal distribution mode, the two ends of each long stud 7 are locked, the inclined shaft a4 is locked between the two long studs 7 at the moment, the crankshaft a is clamped, the crank arm a2 can be milled, and oil hole drilling is conducted on the eccentric shaft a 3.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (5)
1. A clamp for crankshaft machining comprises a base (1) and a V-shaped block clamping device (2); the two V-shaped block clamping devices (2) are oppositely and fixedly arranged on the base (1) in the left-right direction and are used for clamping main journals at two ends of the crankshaft; the method is characterized in that: the clamp further comprises a middle clamping device (3) for clamping the middle section of the crankshaft, the middle clamping device (3) comprises two clamping blocks (31) and a locking assembly, and the two clamping blocks (31) are oppositely arranged on the base (1) in the front-back direction and are positioned between the two V-shaped block clamping devices (2); the two clamping blocks (31) clamp the middle section of the crankshaft after being locked by the locking assembly.
2. The jig for crankshaft machining according to claim 1, characterized in that: the clamping block (31) is fixedly installed on the base (1) through a first bolt (4), and the base (1) is provided with a strip-shaped U-shaped hole (11) through which the first bolt (4) penetrates.
3. The jig for crankshaft machining according to claim 1, characterized in that: the locking assembly comprises a pressing plate (5) and two second bolts (6), a pressing plate hole (311) for placing the pressing plate (5) is formed in each clamping block (31), and the pressing plate (5) is horizontally placed through the pressing plate holes (311) in the two clamping blocks (31); the two second bolts (6) are in one-to-one correspondence with the two clamping blocks (31), the upper wall surface of the pressing plate hole (311) is communicated with the top surface of the clamping block (31) through a bolt hole for mounting the second bolt (6), the second bolt (6) is mounted in the bolt hole, and the bottom surface of the second bolt downwards presses the pressing plate (5).
4. The jig for crankshaft machining according to claim 1, characterized in that: the locking assembly comprises at least two long studs (7), four mounting holes (312) which are distributed in a rectangular shape are formed in the clamping block (31), and the two long studs (7) are mounted in the two mounting holes (312) which are distributed in a diagonal line; after the two ends of the long studs (7) are locked, the middle section of the crankshaft is locked between the two long studs (7).
5. The jig for crankshaft machining according to claim 1, characterized in that: v type piece clamping device (2) are including location V type piece (21) and push down V type piece (22), location V type piece (21) are through locating pin (23) fixed mounting on base (1), push down V type piece (22) and lie in location V type piece (21) above, connect through stud (24) between the two, and top mounting nut (25) of stud (24) are screwed through nut (25) and are pushed down location V type piece (21) and push down V type piece (22) to press from both ends main journal of tight bent axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003535.9U CN210550576U (en) | 2019-06-28 | 2019-06-28 | A anchor clamps for bent axle processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003535.9U CN210550576U (en) | 2019-06-28 | 2019-06-28 | A anchor clamps for bent axle processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210550576U true CN210550576U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921003535.9U Active CN210550576U (en) | 2019-06-28 | 2019-06-28 | A anchor clamps for bent axle processing |
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| CN (1) | CN210550576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056171A (en) * | 2022-06-23 | 2022-09-16 | 西安北方庆华机电有限公司 | Eccentric bidirectional positioning device |
-
2019
- 2019-06-28 CN CN201921003535.9U patent/CN210550576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056171A (en) * | 2022-06-23 | 2022-09-16 | 西安北方庆华机电有限公司 | Eccentric bidirectional positioning device |
| CN115056171B (en) * | 2022-06-23 | 2024-01-02 | 西安北方庆华机电有限公司 | Eccentric bidirectional positioning device |
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