Positioning device for crankshaft machining

Abstract

The utility model discloses a positioning device for crankshaft machining, which relates to the technical field of crankshaft machining and comprises a worktable, a mounting plate and a rotating seat. A pair of mounting plates are slidably mounted on the workbench, the pair of rotating seats are rotatably mounted on the opposite sides of the pair of mounting plates correspondingly, cavities are formed in the opposite sides of the pair of rotating seats correspondingly, fixing sleeves are fixedly mounted in the cavities correspondingly, a pair of threaded rods are rotatably mounted on the fixing sleeves correspondingly, and threaded blocks are rotationally connected to the pair of threaded rods correspondingly; the threaded block is fixedly connected with a connecting rod, the other end of the connecting rod extends into the fixing sleeve and is fixedly provided with a clamping plate, and a driving assembly for driving the threaded rod to rotate is installed in the cavity, so that the problems that the clamping part of the positioning device is inconvenient to adjust, crankshafts of different sizes are inconvenient to fix, and the positioning accuracy is high are effectively solved. And the technical problems that the crankshaft is inconvenient to rotate, and different positions of the crankshaft are machined are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to crankshaft processing technical field, concretely is a kind of positioning device for crankshaft processing. BACKGROUND

[0002] Crankshaft is the most important component in engine, it bears the force from connecting rod, and it is converted into torque through crankshaft output and drive other accessories on engine work, the structure of crankshaft is generally composed of main shaft neck, connecting rod shaft neck, crank, counterweight, front end and rear end, when processing crankshaft, it needs to use crankshaft positioning device to fix crankshaft, so as to process crankshaft.

[0003] However, the existing positioning device for crankshaft processing is inconvenient to adjust the clamping part of the positioning device, inconvenient to fix crankshafts of different sizes, and inconvenient to rotate the crankshaft for processing different positions. The existing method is to disassemble the crankshaft after processing one side, rotate it to the next side to be processed, and then re-clamp. This method is complicated to operate, increases the labor intensity of workers, and consumes too much time for disassembly, repositioning and reinstallation, so the efficiency is not high. SUMMARY

[0004] To overcome the deficiencies of the prior art, the utility model provides a positioning device for crankshaft processing, which solves the technical problems raised in the background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a positioning device for crankshaft processing, comprising a workbench, a mounting plate and a rotating seat; a pair of mounting plates are slidably installed on the workbench, a pair of rotating seats are rotatably installed on opposite sides of the pair of mounting plates, cavities are formed on opposite sides of the pair of rotating seats, fixed sleeves are fixedly installed in the cavities, a pair of threaded rods are rotatably installed on the fixed sleeves, threaded blocks are threadedly connected to the pair of threaded rods, connecting rods are fixedly connected to the threaded blocks, clamping plates are fixedly installed at the other ends of the connecting rods and extend into the fixed sleeves, and a driving assembly is installed in the cavity to drive the threaded rods to rotate.

[0006] Preferably, the driving assembly comprises a first motor, the first motor is fixedly installed in the rotating seat, a driving bevel gear is fixedly installed at the driving end of the first motor, and a driven bevel gear is fixedly installed on the threaded rod and engaged with the driving bevel gear.

[0007] Preferably, an annular groove is formed in the mounting plate at the rotating seat, a plurality of rotating rods are rotatably installed in the annular groove, and the plurality of rotating rods are in contact with the rotating seat.

[0008] Preferably, a second motor for driving one of the swivel seats to rotate is fixedly mounted on one of the mounting plates.

[0009] Preferably, a groove is provided on the top wall of the workbench, a bidirectional threaded rod is rotatably installed in the groove, a pair of mounting plates are screwed onto the bidirectional threaded rod, a pair of mounting plates are slidably connected to the groove, and one end of the bidirectional threaded rod extends to the outside of the workbench and is fixedly installed with a turning handle.

[0010] Beneficial effects

[0011] The utility model provides a positioning device for crankshaft processing, which has the following beneficial effects:

[0012] 1. The distance between a pair of mounting plates can be adjusted by sliding, so that crankshafts of different lengths can be fixed. The swivel seat can be rotated to drive the crankshaft to rotate, so that different surfaces of the crankshaft can be processed. There is no need to remove it and reinstall it after processing one surface.

[0013] 2. A fixing sleeve is installed to facilitate installation of the threaded rod. By installing the threaded rod and rotating the threaded rod, the threaded block can be driven to move, thereby driving the connecting rod and the clamping plate to move, thereby adjusting the distance between the clamping plates, thereby facilitating clamping of both ends of crankshafts of different diameters, thereby expanding the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0016] Figure 3 for Figure 1 A magnified schematic diagram of B.

[0017] In the figure: 1. workbench; 2. mounting plate; 3. swivel seat; 4. fixing sleeve; 5. threaded rod; 6. driven bevel gear; 7. driving bevel gear; 8. clamping plate; 9. annular groove; 10. turning stick; 11. first motor; 12. turning handle; 13. threaded block; 14. groove; 15. bidirectional threaded rod; 16. second motor; 826. crankshaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention, wherein the directional terms such as "upper" and "lower" mentioned herein are as follows: Figure 1 The orientation is referenced.

[0019] See alsoFigures 1-3 The utility model provides a kind of technical scheme: a positioning device for crankshaft processing, including workbench 1, mounting plate 2 and rotating seat 3;A pair of mounting plate 2 is slidably installed on workbench 1, a pair of rotating seat 3 is respectively rotationally installed in the opposite side of a pair of mounting plate 2, the opposite side of a pair of rotating seat 3 is all provided with cavity, fixed sleeve 4 is all fixedly installed in cavity, a pair of threaded rods 5 are rotationally installed on fixed sleeve 4, threaded block 13 is all screwed on a pair of threaded rods 5, connecting rod is fixedly connected on threaded block 13, and the other end of connecting rod is all extended into fixed sleeve 4 and fixedly installed with clamping plate 8, driving assembly for driving threaded rod 5 rotation is installed in cavity, the distance between a pair of mounting plate 2 can be adjusted by slidably installing mounting plate 2, so as to facilitate the fixation of crankshaft 826 of different lengths, rotating seat 3 is rotationally installed, and rotating seat 3 rotation can drive crankshaft 826 to rotate, so as to facilitate the machining of different surfaces of crankshaft 826, without being removed after the machining of a surface is completed, rotating sleeve 4 is installed to facilitate the installation of threaded rod 5, threaded rod 5 is installed, and rotating threaded rod 5 can drive threaded block 13 to move, connecting rod is installed, and the circumferential limit of threaded block 13 can be carried out, so as to drive connecting rod and clamping plate 8 to move, so as to adjust the distance between clamping plate 8, and then facilitate the clamping of the both ends of crankshaft 826 of different diameters, expand the application range of device.

[0020] Further, the driving assembly includes a first motor 11, the first motor 11 is fixedly installed in the rotating seat 3, the driving end of the first motor 11 is fixedly installed with a driving bevel gear 7, the threaded rod 5 is fixedly installed with a driven bevel gear 6 engaged with the driving bevel gear 7, the first motor 11 is installed, and the driving bevel gear 7 is driven to rotate by starting the first motor 11, the driven bevel gear 6 is driven to rotate by engaging the driving bevel gear 7 with the driven bevel gear 6, and the threaded rod 5 is driven to rotate, the first motor 11 in the rotating seat 3 can be controlled independently.

[0021] Further, the mounting plate 2 at the rotating seat 3 is provided with an annular groove 9, and a plurality of rotating rods 10 are rotationally installed in the annular groove 9, and the rotating rods 10 are in contact with the rotating seat 3, the annular groove 9 is provided, and the rotating rods 10 are installed in the annular groove 9, so as to reduce the friction between the rotating seat 3 and the mounting plate 2, so as to facilitate the rotation of the rotating seat 3.

[0022] Further, one mounting plate 2 is fixedly installed with a second motor 16 for driving one rotating seat 3 to rotate.

[0023] Further, the top wall of the workbench 1 is provided with a groove 14, a bidirectional threaded rod 15 is rotatably installed in the groove 14, a pair of mounting plates 2 are screwed on the bidirectional threaded rod 15, the pair of mounting plates 2 are slidably connected with the groove 14, one end of the bidirectional threaded rod 15 extends to the outside of the workbench 1 and is fixedly installed with a handle 12, by installing the bidirectional threaded rod 15, rotating the bidirectional threaded rod 15 can drive the pair of mounting plates 2 to move in the groove 14, the distance between the pair of mounting plates 2 can be adjusted, so that the crankshaft 826 of different lengths can be clamped conveniently, by installing the handle 12, rotating the handle 12 can drive the bidirectional threaded rod 15 to rotate.

[0024] By the person skilled in the art, all electrical components in the case are connected with their adapted power supply through wires, and appropriate controllers should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should be referred to the working principle below to complete the electrical connection according to the working sequence between the electrical components. The detailed connection means is a common technology in the art, and the working principle and process are mainly introduced below, and the electrical control is not described.

[0025] The working principle and use process of the utility model: in use, the distance between the pair of mounting plates 2 is adjusted according to the length of the crankshaft 826 to be machined, until the position of fixing the crankshaft 826 is appropriate, the both ends of the crankshaft 826 are placed between the clamping plates 8, the first motor 11 on the pair of mounting plates is started, the driving bevel gear 7 is driven to rotate, the driven bevel gear 6 is driven to rotate through the meshing of the driving bevel gear 7 and the driven bevel gear 6, so that the connecting rod and the clamping plate 8 can be moved, until the both ends of the crankshaft 826 are fixed, the corresponding first motor 11 is closed in turn, the second motor 16 is started to drive one rotating seat 3 to rotate, the crankshaft 826 can be driven to rotate, and the other rotating seat 3 can be driven to rotate at the same time, when the crankshaft 826 rotates to the position to be machined, the second motor 16 is stopped.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning device for crankshaft processing, characterized in that: The invention comprises a workbench (1), a mounting plate (2) and a swivel seat (3); a pair of mounting plates (2) are slidably mounted on the workbench (1); a pair of swivel seats (3) are rotatably mounted on opposite sides of a pair of mounting plates (2); cavities are provided on opposite sides of a pair of swivel seats (3); a fixing sleeve (4) is fixedly mounted in the cavity; a pair of threaded rods (5) are rotatably mounted on the fixing sleeve (4); a threaded block (13) is screwed onto the pair of threaded rods (5); a connecting rod is fixedly connected to the threaded block (13); the other end of the connecting rod extends into the fixing sleeve (4) and is fixedly mounted with a clamping plate (8); a driving component for driving the threaded rod (5) to rotate is installed in the cavity.

2. A crankshaft machining positioning device according to claim 1, characterized in that: The driving assembly comprises a first motor (11), the first motor (11) being fixedly mounted in the rotating seat (3), a driving bevel gear (7) being fixedly mounted on the driving end of the first motor (11), and a driven bevel gear (6) meshing with the driving bevel gear (7) being fixedly mounted on the threaded rod (5).

3. A positioning device for crankshaft machining according to claim 1, characterized in that: An annular groove (9) is provided on the mounting plate (2) located at the rotating seat (3), and a plurality of rotating rods (10) are rotatably mounted in the annular groove (9), and the plurality of rotating rods (10) are in contact with the rotating seat (3).

4. A positioning device for crankshaft machining according to claim 1, characterized in that: A second motor (16) for driving a rotating seat (3) to rotate is fixedly mounted on one of the mounting plates (2).

5. The positioning device for crankshaft machining according to claim 1, characterized in that: The top wall of the workbench (1) is provided with a groove (14), a bidirectional threaded rod (15) is rotatably installed in the groove (14), a pair of the mounting plates (2) are screwed onto the bidirectional threaded rod (15), a pair of the mounting plates (2) are slidably connected to the groove (14), and one end of the bidirectional threaded rod (15) extends to the outside of the workbench (1) and is fixedly installed with a turning handle (12).

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