Connecting rod boring positioning device

Abstract

The utility model relates to the technical field of connecting rod production devices, and discloses a connecting rod boring positioning device which comprises a bottom plate and a connecting rod, the connecting rod is located above the bottom plate, the wall face of the top end of the bottom plate is provided with two sets of clamping assemblies for limiting and clamping the two sides of the connecting rod, and the clamping assemblies are arranged on the bottom plate. The clamping assembly comprises a supporting block, a rotating shaft, a first clamping plate and a second clamping plate, the forked end of the connecting rod is provided with a limiting assembly, the limiting assembly comprises a mounting block, a pneumatic telescopic rod, a lifting plate and a limiting plate, the lifting plate movably penetrates through the limiting plate, and the clamping assembly and the limiting assembly are matched to limit and fix the connecting rod. The long handle of the connecting rod can be clamped and fixed by arranging the two clamping assemblies on the bottom plate, the forked end of the connecting rod can be clamped by arranging the limiting assembly, product scrapping caused by shaking of the connecting rod in the boring machining process is avoided, and the device is easy to operate, fast in adjustment and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod production devices, in particular to a connecting rod boring and positioning device. Background Art

[0002] The engine connecting rod is one of the main transmission mechanisms of the automobile engine. It connects the piston and the crankshaft, transmits the expanding gas pressure acting on the top of the piston to the crankshaft, and reversibly converts the reciprocating linear motion of the piston into the rotary motion of the crankshaft to output power. The engine connecting rod needs to be bored during production and processing, and positioning tooling is required when boring the engine.

[0003] During the existing engine connecting rod boring process, the connecting rod needs to be positioned, but the positioning position is usually fixed and inconvenient to adjust. In addition, due to the different shapes of the connecting rod, especially the arc-shaped end of the connecting rod, threaded holes need to be opened on both sides of the arc-shaped end. After positioning, it is unstable and there may be a little shaking, which affects the product qualification rate.

[0004] Therefore, we propose a connecting rod boring positioning device. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a connecting rod boring and positioning device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a connecting rod boring positioning device, comprising a base plate and a connecting rod, the connecting rod being located above the base plate, and a clamping assembly for limiting and clamping the two sides of the connecting rod is arranged on the top wall of the base plate, the clamping assembly is divided into two groups, the clamping assembly comprises a support block, a rotating shaft, a first clamping plate and a second clamping plate, a limiting assembly is arranged at the forked end of the connecting rod, the limiting assembly comprises a mounting block, a pneumatic telescopic rod, a lifting plate and a limiting plate, the lifting plate movably passes through the limiting plate, and the clamping assembly and the limiting assembly cooperate to limit and fix the connecting rod.

[0007] Preferably, the support block is fixedly mounted on the bottom plate, a rectangular groove is provided on the top wall of the support block, and the first clamping plate, the second clamping plate and the rotating shaft are arranged in the rectangular groove.

[0008] Preferably, the first clamping plate and the second clamping plate are in an "L" shape, the first clamping plate and the second clamping plate on a set of clamping assemblies are in a symmetrical state, and the rotating shaft movably passes through the first clamping plate and the second clamping plate.

[0009] Preferably, one end of the rotating shaft is movably mounted on the inner wall surface of one side of the rectangular groove of the support block through a bearing, a stepper motor is fixedly mounted on the outer wall surface of one side of the support block, and the other end of the rotating shaft movably passes through the rectangular groove of the support block and is fixedly connected to the output shaft of the stepper motor.

[0010] Preferably, a group of reverse threads are provided on the outer wall surface of the rotating shaft, the first clamping plate and the second clamping plate are located at two ends of the rotating shaft, and the rotating shaft and the first clamping plate and the second clamping plate are in a threaded connection relationship.

[0011] Preferably, the mounting block is fixedly mounted on the base plate, a snap-fit ​​groove is provided at the top of the mounting block, the pneumatic telescopic rod is fixedly mounted in the snap-fit ​​groove, a moving block is also provided in the snap-fit ​​groove, and sliding grooves are provided on both side walls of the snap-fit ​​groove.

[0012] Preferably, a slider is movably engaged in the slide groove, the slider is fixedly connected to the moving block, the limit plate is fixedly connected to the top of the moving block, and the telescopic end of the pneumatic telescopic rod is fixedly connected to the moving block.

[0013] Preferably, the side of the limit plate close to the connecting rod is arc-shaped, and the first rectangular plate and the second rectangular plate are fixedly connected to the wall surface of the limit plate away from the connecting rod. The lifting plate is located between the first rectangular plate and the second rectangular plate. A threaded rod is movably installed on the top of the first rectangular plate through a bearing. The end of the threaded rod away from the first rectangular plate movably passes through the second rectangular plate and is fixedly connected to a cross rod. The threaded rod movably passes through the lifting plate, and there is a threaded connection relationship between the threaded rod and the lifting plate.

[0014] The utility model provides a connecting rod boring positioning device, which has the following beneficial effects:

[0015] (1) This connecting rod boring positioning device can clamp the long handle of the connecting rod by setting two sets of clamping components on the bottom plate to fix it, and can clamp the forked end of the connecting rod by setting a limit component to avoid shaking of the connecting rod during the boring process and causing the product to be scrapped. The device is simple to operate, quick to adjust, and highly practical.

[0016] (2) In this connecting rod boring and positioning device, when the clamping assembly is in operation, the stepper motor drives the rotating shaft to rotate, and the rotating shaft moves through the first clamping plate and the second clamping plate. A group of reverse threads are provided on the outer wall surface of the rotating shaft. The first clamping plate and the second clamping plate are located at both ends of the rotating shaft. The rotating shaft and the first clamping plate and the second clamping plate are in a threaded connection relationship. Therefore, during the rotation of the rotating shaft, the first clamping plate and the second clamping plate are brought close to each other to clamp the connecting rod. The first clamping plate and the second clamping plate are brought close to each other to automatically position and adjust the connecting rod, so that the clamped connecting rod is located on the axis centerline.

[0017] (3) In this connecting rod boring and positioning device, the moving block is fixedly connected with the limit plate, and the side of the limit plate close to the connecting rod is set to be arc-shaped, so that the limit plate and the arc surface of the connecting rod can be fitted together. By setting a lifting plate that movably penetrates the limit plate, the first rectangular plate and the second rectangular plate are fixedly installed on the limit plate. The operator rotates the cross bar by hand, and the cross bar drives the threaded rod to rotate. The threaded rod movably penetrates the lifting plate to drive the lifting plate to lift and lower. The lifting plate descends to clamp the forked end of the connecting rod, further limiting and fixing the connecting rod, thereby improving the qualified rate of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a connecting rod boring and positioning device of the utility model;

[0019] Figure 2 It is a top view schematic diagram of a connecting rod boring and positioning device of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection relationship between the first clamping plate, the second clamping plate and the rotating shaft of a connecting rod boring and positioning device of the utility model;

[0021] Figure 4 This is a three-dimensional structural schematic diagram of a limiting component of a connecting rod boring positioning device of the utility model;

[0022] Figure 5 It is a right side schematic diagram of a limiting assembly of a connecting rod boring positioning device of the utility model;

[0023] Figure 6 The utility model is an exploded view of the partial structure of the limiting component of the connecting rod boring positioning device.

[0024] Legend:

[0025] 10. Base plate; 11. Connecting rod; 12. Clamping assembly; 13. Limiting assembly; 14. Support block; 15. Stepping motor; 16. Rotating shaft; 17. First clamping plate; 18. Second clamping plate; 19. Mounting block; 20. Pneumatic telescopic rod; 21. Slide groove; 22. Limiting plate; 23. Lifting plate; 24. First rectangular plate; 25. Moving block; 26. Sliding block; 27. Threaded rod; 28. Second rectangular plate; 29. ​​Cross bar. DETAILED DESCRIPTION

[0026] like Figure 1-6As shown: a connecting rod boring positioning device, including a base plate 10 and a connecting rod 11, the connecting rod 11 is located above the base plate 10, and a clamping assembly 12 for limiting and clamping the two sides of the connecting rod 11 is arranged on the top wall of the base plate 10, and the clamping assembly 12 is divided into two groups, and the clamping assembly 12 includes a support block 14, a rotating shaft 16, a first clamping plate 17 and a second clamping plate 18. A limiting assembly 13 is arranged at the forked end of the connecting rod 11, and the limiting assembly 13 includes a mounting block 19, a pneumatic telescopic rod 20, a lifting plate 23 and a limiting plate 22, and the lifting plate 23 movably passes through the limiting plate 22, and the clamping assembly 12 and the limiting assembly 13 cooperate to limit and fix the connecting rod 11.

[0027] Specifically, by setting two sets of clamping assemblies 12 on the base plate 10, the long handle of the connecting rod 11 can be clamped and fixed. By setting a limit assembly 13, the forked end of the connecting rod 11 can be clamped to avoid shaking of the connecting rod 11 during the boring process, which may cause the product to be scrapped. The device is simple to operate, fast to adjust, and highly practical.

[0028] The support block 14 is fixedly mounted on the bottom plate 10 . A rectangular groove is formed on the top wall of the support block 14 . The first clamping plate 17 , the second clamping plate 18 and the rotating shaft 16 are arranged in the rectangular groove.

[0029] Specifically, the support block 14 is fixedly mounted on the bottom plate 10 , a rectangular groove is formed on the top wall of the support block 14 , the first clamping plate 17 and the second clamping plate 18 are movably engaged in the rectangular groove, and one end of the rotating shaft 16 movably passes through the rectangular groove.

[0030] The first clamping plate 17 and the second clamping plate 18 are in an "L" shape. The first clamping plate 17 and the second clamping plate 18 on a set of clamping components 12 are in a symmetrical state. The rotating shaft 16 movably passes through the first clamping plate 17 and the second clamping plate 18. One end of the rotating shaft 16 is movably mounted on the inner wall surface of one side of the rectangular groove of the support block 14 through a bearing. The stepper motor 15 is fixedly mounted on the outer wall surface of one side of the support block 14. The other end of the rotating shaft 16 movably passes through the rectangular groove of the support block 14 and is fixedly connected to the output shaft of the stepper motor 15. A set of reverse threads are provided on the outer wall surface of the rotating shaft 16. The first clamping plate 17 and the second clamping plate 18 are located at both ends of the rotating shaft 16. The rotating shaft 16 and the first clamping plate 17 and the second clamping plate 18 are in a threaded connection relationship.

[0031] Specifically, during the operation of the clamping assembly 12, the stepper motor 15 drives the rotating shaft 16 to rotate, and the rotating shaft 16 moves through the first clamp plate 17 and the second clamp plate 18. A group of reverse threads are provided on the outer wall surface of the rotating shaft 16, and the first clamp plate 17 and the second clamp plate 18 are located at both ends of the rotating shaft 16. The rotating shaft 16 and the first clamp plate 17 and the second clamp plate 18 are in a threaded connection relationship, so that during the rotation of the rotating shaft 16, the first clamp plate 17 and the second clamp plate 18 approach each other to clamp the connecting rod 11. The first clamp plate 17 and the second clamp plate 18 approach each other to automatically position and adjust the connecting rod 11, so that the clamped connecting rod 11 is located on the axis centerline.

[0032] The mounting block 19 is fixedly mounted on the bottom plate 10, and a snap-fit ​​groove is provided at the top of the mounting block 19, and the pneumatic telescopic rod 20 is fixedly mounted in the snap-fit ​​groove, and a moving block 25 is also provided in the snap-fit ​​groove, and both side walls of the snap-fit ​​groove are provided with a slide groove 21. A slider 26 is movably engaged in the slide groove 21, and the slider 26 and the moving block 25 are in a fixed connection relationship, and the limit plate 22 is fixedly connected to the top of the moving block 25, and the telescopic end of the pneumatic telescopic rod 20 is fixedly connected to the moving block 25.

[0033] Specifically, the mounting block 19 is fixedly mounted on the base plate 10, a snap-fitting groove is provided at the top of the mounting block 19, the pneumatic telescopic rod 20 is fixedly mounted in the snap-fitting groove, the moving block 25 is movably snap-fitted in the snap-fitting groove, and the pneumatic telescopic rod 20 pushes the moving block 25 to move during operation.

[0034] The side of the limit plate 22 close to the connecting rod 11 is arc-shaped, and the first rectangular plate 24 and the second rectangular plate 28 are fixedly connected to the wall surface of the limit plate 22 away from the connecting rod 11. The lifting plate 23 is located between the first rectangular plate 24 and the second rectangular plate 28. A threaded rod 27 is movably installed on the top of the first rectangular plate 24 through a bearing. The end of the threaded rod 27 away from the first rectangular plate 24 movably passes through the second rectangular plate 28 and is fixedly connected to a cross bar 29. The threaded rod 27 movably passes through the lifting plate 23, and there is a threaded connection relationship between the threaded rod 27 and the lifting plate 23.

[0035] Specifically, the movable block 25 is fixedly connected to the limit plate 22, and the side of the limit plate 22 close to the connecting rod 11 is set to be arc-shaped, so that the limit plate 22 is easy to fit with the arc surface of the connecting rod 11, and the lifting plate 23 is movably penetrated through the limit plate 22, and the first rectangular plate 24 and the second rectangular plate 28 are fixedly installed on the limit plate 22. The operator rotates the cross bar 29 by hand, and the cross bar 29 drives the threaded rod 27 to rotate. The threaded rod 27 movably penetrates the lifting plate 23, thereby driving the lifting plate 23 to rise and fall. The lifting plate 23 descends to clamp the forked end of the connecting rod 11, further limiting and fixing the connecting rod 11, thereby improving the qualified rate of the finished product.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A connecting rod boring and positioning device, comprising a base plate (10) and a connecting rod (11), wherein the connecting rod (11) is located above the base plate (10), and is characterized in that: A clamping assembly (12) for limiting and clamping the two sides of the connecting rod (11) is arranged on the top wall surface of the bottom plate (10), and the clamping assembly (12) is divided into two groups. The clamping assembly (12) includes a supporting block (14), a rotating shaft (16), a first clamping plate (17) and a second clamping plate (18). A limiting assembly (13) is arranged at the forked end of the connecting rod (11), and the limiting assembly (13) includes a mounting block (19), a pneumatic telescopic rod (20), a lifting plate (23) and a limiting plate (22). The lifting plate (23) movably passes through the limiting plate (22), and the clamping assembly (12) and the limiting assembly (13) cooperate to limit and fix the connecting rod (11).

2. The connecting rod boring and positioning device according to claim 1, characterized in that: The support block (14) is fixedly mounted on the bottom plate (10), a rectangular groove is provided on the top wall of the support block (14), and a first clamping plate (17), a second clamping plate (18) and a rotating shaft (16) are arranged in the rectangular groove.

3. The connecting rod boring and positioning device according to claim 2, characterized in that: The first clamping plate (17) and the second clamping plate (18) are in an "L" shape. The first clamping plate (17) and the second clamping plate (18) on a set of clamping components (12) are in a symmetrical state. The rotating shaft (16) movably passes through the first clamping plate (17) and the second clamping plate (18).

4. The connecting rod boring and positioning device according to claim 3, characterized in that: One end of the rotating shaft (16) is movably mounted on an inner wall surface of a rectangular groove of a support block (14) through a bearing, a stepper motor (15) is fixedly mounted on an outer wall surface of a support block (14), and the other end of the rotating shaft (16) movably passes through the rectangular groove of the support block (14) and is fixedly connected to an output shaft of the stepper motor (15).

5. The connecting rod boring and positioning device according to claim 4, characterized in that: A group of reverse threads are provided on the outer wall surface of the rotating shaft (16); a first clamping plate (17) and a second clamping plate (18) are located at two ends of the rotating shaft (16); and the rotating shaft (16) and the first clamping plate (17) and the second clamping plate (18) are in threaded connection relationship.

6. The connecting rod boring and positioning device according to claim 1, characterized in that: The mounting block (19) is fixedly mounted on the bottom plate (10), a clamping groove is provided at the top of the mounting block (19), a pneumatic telescopic rod (20) is fixedly mounted in the clamping groove, a moving block (25) is also provided in the clamping groove, and sliding grooves (21) are provided on both side walls of the clamping groove.

7. The connecting rod boring and positioning device according to claim 6, characterized in that: A slider (26) is movably engaged in the slide groove (21), the slider (26) and the moving block (25) are in a fixed connection relationship, the limit plate (22) is fixedly connected to the top of the moving block (25), and the telescopic end of the pneumatic telescopic rod (20) is fixedly connected to the moving block (25).

8. The connecting rod boring and positioning device according to claim 7, characterized in that: The side of the limiting plate (22) close to the connecting rod (11) is arc-shaped, and the wall surface of the limiting plate (22) away from the connecting rod (11) is fixedly connected to a first rectangular plate (24) and a second rectangular plate (28), and the lifting plate (23) is located between the first rectangular plate (24) and the second rectangular plate (28). A threaded rod (27) is movably mounted on the top of the first rectangular plate (24) through a bearing, and one end of the threaded rod (27) away from the first rectangular plate (24) movably penetrates the second rectangular plate (28) and is fixedly connected to a cross bar (29), and the threaded rod (27) movably penetrates the lifting plate (23), and a threaded connection relationship is formed between the threaded rod (27) and the lifting plate (23).

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