Clamp for connecting rod machining

Abstract

The utility model discloses a fixture for processing a connecting rod, which comprises a bottom plate, the upper surface of the bottom plate is provided with a positioning groove acting on the connecting rod, the upper end of the bottom plate is provided with a first clamping mechanism and a second clamping mechanism, and the first clamping mechanism and the second clamping mechanism are the same in structure and different in size. A first positioning rod and a second positioning rod are further arranged on the upper surface of the bottom plate, a groove is formed in the position, below the first positioning rod, of the bottom plate, a second connecting hole is formed in the position, below the second positioning rod, of the bottom plate, and the first positioning rod is connected with the bottom plate through a first connecting mechanism. According to the connecting rod machining clamp, through the unique structural design, machining of a plurality of working procedures of a connecting rod can be completed on one clamp, and the machining efficiency of the connecting rod can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing, in particular to a clamp used for connecting rod processing. Background Art

[0002] The connecting rod body consists of three parts. The part connected to the piston pin is called the small end of the connecting rod; the part connected to the crankshaft is called the big end of the connecting rod, and the rod connecting the small end and the big end is called the connecting rod body. There are connection holes on the big end and the small end of the connecting rod.

[0003] When processing connecting rods, multiple processing steps are required to process the connecting rod's large and small holes, cover connection surfaces, etc., and multiple sets of fixtures are often required for these processes. The tooling cost is too high, the equipment occupies more space, and the production efficiency is low. Therefore, a fixture for connecting rod processing is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a clamp for connecting rod processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for connecting rod processing, comprising a base plate, the upper surface of the base plate is provided with a positioning groove acting on the connecting rod, the upper end of the base plate is provided with a No. 1 clamping mechanism and a No. 2 clamping mechanism, the No. 1 clamping mechanism and the No. 2 clamping mechanism have the same structure and different sizes, a No. 1 positioning rod and a No. 2 positioning rod are also provided on the upper surface of the base plate, a groove is provided on the base plate below the No. 1 positioning rod, a No. 2 connecting hole is provided on the base plate below the No. 2 positioning rod, the No. 1 positioning rod is connected to the base plate through the No. 1 connecting mechanism, and the No. 2 positioning rod is connected to the base plate through the No. 2 connecting mechanism.

[0006] As a further preferred embodiment of the present technical solution, the No. 1 clamping mechanism is composed of two clamping assemblies with the same structure, and the two clamping assemblies are symmetrically distributed on both sides of the upper end of the base plate.

[0007] As a further preferred embodiment of the present technical solution, the clamping assembly consists of a fixed block, an adjusting screw, a clamping block and an adjusting piece, the fixed block is fixedly mounted on the upper end of the base plate, one end of the fixed block close to the middle of the base plate is rotatably connected to the adjusting screw, the other end of the fixed block is rotatably connected to the adjusting piece, the adjusting piece is fixedly connected to the adjusting screw, the end of the adjusting screw is sleeved with a clamping block and is connected to the clamping block by threaded fitting, the bottom of the clamping block is fixedly connected to a guide block, and the guide block is slidably mounted in a guide groove opened on the upper surface of the base plate.

[0008] As a further preferred embodiment of the present technical solution, the distance between the adjusting screw and the connecting rod is smaller than the length of the clamping block.

[0009] As a further preferred embodiment of the present technical solution, the clamping end of the clamping block is frosted.

[0010] As a further preferred embodiment of the present technical solution, the No. 1 connecting mechanism consists of a mounting plate and a No. 1 connecting rod, the mounting plate is fixedly connected to the bottom of the base plate, a No. 1 connecting hole is provided on the mounting plate, the No. 1 connecting rod is connected to the No. 1 connecting hole by threaded fitting, the upper end of the No. 1 connecting rod is fixedly connected to a No. 1 positioning rod, and a through hole is provided on the base plate above the No. 1 connecting hole and slidably fits with the No. 1 positioning rod.

[0011] As a further preferred embodiment of the present technical solution, the No. 2 connecting mechanism includes a No. 2 connecting rod, the No. 2 connecting rod is connected to the No. 2 connecting hole by threaded fitting, and the No. 2 positioning rod is fixedly mounted on the upper end of the No. 2 connecting rod.

[0012] The utility model provides a clamp for connecting rod processing, which has the following beneficial effects:

[0013] The utility model can complete multiple processing steps of the connecting rod on one clamp through the unique structural design, and can effectively improve the processing efficiency of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the disassembly of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the disassembly of the overall structure of the utility model from another perspective;

[0017] Figure 4 It is a structural schematic diagram of the first clamping assembly in the utility model;

[0018] In the figure: 1, base plate; 2, clamping mechanism No. 1; 3, clamping mechanism No. 2; 4, positioning rod No. 1; 5, positioning rod No. 2; 6, connecting rod No. 1; 7, connecting hole No. 1; 8, connecting rod No. 2; 9, connecting hole No. 2; 10, through hole; 11, groove; 12, mounting plate; 13, fixing block; 14, adjusting screw; 15, clamping block; 16, adjusting member; 17, guide groove; 18, positioning groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in the present embodiment, a clamp for connecting rod processing comprises a base plate 1, a positioning groove 18 for acting on the connecting rod is provided on the upper surface of the base plate 1, a No. 1 clamping mechanism 2 and a No. 2 clamping mechanism 3 are provided at the upper end of the base plate 1, the No. 1 clamping mechanism 2 and the No. 2 clamping mechanism 3 have the same structure but different sizes, a No. 1 positioning rod 4 and a No. 2 positioning rod 5 are also provided on the upper surface of the base plate 1, a groove 11 is provided on the base plate 1 below the No. 1 positioning rod 4, a No. 2 connecting hole 9 is provided on the base plate 1 below the No. 2 positioning rod 5, the No. 1 positioning rod 4 is connected to the base plate 1 via the No. 1 connecting mechanism, and the No. 2 positioning rod 5 is connected to the base plate 1 via the No. 2 connecting mechanism.

[0021] Among them, the No. 1 clamping mechanism 2 is composed of two clamping components with the same structure (here the No. 1 clamping mechanism 2 is used as an example for description), and the two clamping components are symmetrically distributed on both sides of the upper end of the base plate 1. The clamping components are composed of a fixed block 13, an adjusting screw 14, a clamping block 15 and an adjusting piece 16. The fixed block 13 is fixedly installed on the upper end of the base plate 1, and one end of the fixed block 13 close to the middle of the base plate 1 is rotatably connected to the adjusting screw 14, and the other end of the fixed block 13 is rotatably connected to the adjusting piece 16. The adjusting piece 16 is fixedly connected to the adjusting screw 14, and the end of the adjusting screw 14 is sleeved with the clamping block 15 and connected to the clamping block 15 through threaded cooperation. The bottom of the clamping block 15 is fixedly connected to a guide block, and the guide block is slidably installed in a guide groove 17 opened on the upper surface of the base plate 1.

[0022] When in use, the adjusting member 16 is rotated to drive the adjusting screw 14 to rotate. The clamping block 15 is restricted by the guide block and cannot rotate. When the adjusting screw 14 rotates, the clamping block 15 will move along the direction of the guide groove 17. At the same time, the two clamping blocks 15 are controlled to approach each other, so that the connecting rod can be clamped.

[0023] The distance between the adjusting screw 14 and the connecting rod is smaller than the length of the clamping block 15 , and the clamping end of the clamping block 15 is frosted.

[0024] Such an arrangement can ensure that the clamping block 15 can clamp the connecting rod before it is separated from the adjusting screw 14, and the frosted clamping block 15 can provide a high friction force between the clamping block 15 and the connecting rod.

[0025] Among them, the No. 1 connecting mechanism is composed of a mounting plate 12 and a No. 1 connecting rod 6. The mounting plate 12 is fixedly connected to the bottom of the base plate 1. A No. 1 connecting hole 7 is opened on the mounting plate 12. The No. 1 connecting rod 6 is connected to the No. 1 connecting hole 7 through threaded cooperation. The upper end of the No. 1 connecting rod 6 is fixedly connected to the No. 1 positioning rod 4. A through hole 10 is opened on the base plate 1 above the No. 1 connecting hole 7 and is slidably fitted with the No. 1 positioning rod 4.

[0026] The No. 1 connecting rod 6 can be installed on the No. 1 connecting hole 7 through threaded engagement, and the No. 1 positioning rod 4 can be extended out of the upper surface of the bottom plate 1, so as to position the B hole of the connecting rod.

[0027] Among them, the No. 2 connecting mechanism includes a No. 2 connecting rod 8, the No. 2 connecting rod 8 and the No. 2 connecting hole 9 are connected by threaded cooperation, and the No. 2 positioning rod 5 is fixedly installed on the upper end of the No. 2 connecting rod 8.

[0028] The No. 2 connecting rod 8 can be installed on the No. 2 connecting hole 9 through threaded engagement, and the No. 2 positioning rod 5 can be extended out of the upper surface of the bottom plate 1, so as to position the A hole of the connecting rod.

[0029] The utility model provides a clamp for connecting rod processing, and the specific working principle is as follows:

[0030] When in use, the connecting rod is placed on the base plate 1, and the connecting rod can be preliminarily positioned through the positioning groove 18, and the two sides of the connecting rod are clamped by the No. 1 clamping mechanism 2 and the No. 2 clamping mechanism 3. At this time, the A hole and the B hole on the connecting rod are roughly processed. The No. 2 connecting hole 9 and the groove 11 set on the base plate 1 can facilitate the processing of the A hole and the B hole without being interfered by the base plate 1. After the rough processing of the A hole and the B hole is completed, the No. 1 clamping mechanism 2 and the No. 2 clamping mechanism 3 are released, and then the No. 1 connecting rod 6 can be installed on the No. 1 connecting hole 7 through threaded cooperation, and the No. 1 positioning rod 4 is extended out of the upper surface of the base plate 1. The No. 2 connecting rod 8 can be installed on the No. 2 connecting hole 9 through threaded matching, and the No. 2 positioning rod 5 can extend out of the upper surface of the bottom plate 1. At this time, the No. 1 positioning rod 4 and the No. 2 positioning rod 5 can position the A hole and the B hole of the connecting rod. After the connecting rod is positioned, the No. 1 clamping mechanism 2 and the No. 2 clamping mechanism 3 are used to clamp the two sides of the connecting rod. At this time, the C hole and the D surface of the connecting rod can be rough-finished, and then the No. 1 positioning rod 4 and the No. 2 positioning rod 5 are removed, and the A hole and the B hole are fine-finished, so that multiple processing steps of the connecting rod can be completed on one fixture, which can effectively improve the processing efficiency. The rough processing of the A hole and the B hole first can facilitate the installation of the No. 1 positioning rod 4 and the No. 2 positioning rod 5, so as to further position the connecting rod and avoid the loosening of the connecting rod when processing the C hole and the D surface. The fine processing of the A hole and the B hole is to avoid the wear of the No. 1 positioning rod 4 and the No. 2 positioning rod 5 on the A hole and the B hole when processing the C hole and the D surface.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for connecting rod processing, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a positioning groove (18) for acting on the connecting rod, and the upper end of the base plate (1) is provided with a No. 1 clamping mechanism (2) and a No. 2 clamping mechanism (3), the No. 1 clamping mechanism (2) and the No. 2 clamping mechanism (3) have the same structure and different sizes, and the upper surface of the base plate (1) is also provided with a No. 1 positioning rod (4) and a No. 2 positioning rod (5), and a groove (11) is provided on the base plate (1) below the No. 1 positioning rod (4), and a No. 2 connecting hole (9) is provided on the base plate (1) below the No. 2 positioning rod (5), and the No. 1 positioning rod (4) is connected to the base plate (1) through the No. 1 connecting mechanism, and the No. 2 positioning rod (5) is connected to the base plate (1) through the No. 2 connecting mechanism.

2. A fixture for connecting rod processing according to claim 1, characterized in that: The No. 1 clamping mechanism (2) is composed of two clamping assemblies with the same structure, and the two clamping assemblies are symmetrically distributed on both sides of the upper end of the base plate (1).

3. A fixture for connecting rod processing according to claim 2, characterized in that: The clamping assembly consists of a fixed block (13), an adjusting screw (14), a clamping block (15) and an adjusting member (16); the fixed block (13) is fixedly mounted on the upper end of the base plate (1); one end of the fixed block (13) close to the middle of the base plate (1) is rotatably connected to the adjusting screw (14); the other end of the fixed block (13) is rotatably connected to the adjusting member (16); the adjusting member (16) is fixedly connected to the adjusting screw (14); the end of the adjusting screw (14) is sleeved with a clamping block (15) and is connected to the clamping block (15) by threaded engagement; the bottom of the clamping block (15) is fixedly connected to a guide block; the guide block is slidably mounted in a guide groove (17) provided on the upper surface of the base plate (1).

4. A fixture for connecting rod processing according to claim 3, characterized in that: The distance between the adjusting screw (14) and the connecting rod is smaller than the length of the clamping block (15).

5. The fixture for connecting rod processing according to claim 3, characterized in that: The clamping end of the clamping block (15) is frosted.

6. A fixture for connecting rod processing according to claim 1, characterized in that: The No. 1 connecting mechanism is composed of a mounting plate (12) and a No. 1 connecting rod (6); the mounting plate (12) is fixedly connected to the bottom of the base plate (1); a No. 1 connecting hole (7) is provided on the mounting plate (12); the No. 1 connecting rod (6) is connected to the No. 1 connecting hole (7) by threaded engagement; the upper end of the No. 1 connecting rod (6) is fixedly connected to a No. 1 positioning rod (4); and a through hole (10) is provided on the base plate (1) above the No. 1 connecting hole (7) and is slidably engaged with the No. 1 positioning rod (4).

7. The fixture for connecting rod processing according to claim 1, characterized in that: The No. 2 connection mechanism comprises a No. 2 connection rod (8), the No. 2 connection rod (8) is connected to the No. 2 connection hole (9) by threaded engagement, and the No. 2 positioning rod (5) is fixedly mounted on the upper end of the No. 2 connection rod (8).

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