A fixing mechanism for crankshaft machining

Abstract

This utility model discloses a crankshaft machining fixing mechanism in the field of crankshaft machining technology, including a machining table. A first fixing frame and a second fixing frame are arranged on both sides of the upper part of the machining table. A base is fixedly installed on one side of the first fixing frame. A limiting plate is fixedly installed inside one side of the base. A turntable is limited and clamped in the middle of the edge side of the base. An outer ring tooth is installed on the outer side of the turntable, and an inner ring tooth is installed on the inner side of the turntable. Sliding holes are opened on the surfaces of the base and the limiting plate. A third slider is provided inside the sliding hole. A tooth groove is opened on one side of the third slider. A gear column is rotatably connected between the base and the limiting plate. When the circumferentially distributed clamping blocks move towards the center of the limiting plate, the front end surface of the crankshaft can be clamped. A positioning plate is driven by a hydraulic cylinder to abut against the output end of the crankshaft, thereby achieving the effect of rapid fixing of the crankshaft.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft machining technology, specifically relating to a fixing mechanism for crankshaft machining. Background Technology

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from the rotating mass, periodically changing gas couple forces, and reciprocating inertial forces, resulting in bending and torsional loads. Therefore, the crankshaft requires sufficient strength and rigidity, and the journal surface must be wear-resistant, have uniform operation, and good balance. During the machining process of the crankshaft, appropriate fixing mechanisms are usually used to secure it.

[0003] Existing crankshaft machining fixing mechanisms mostly rely on manual intervention and operation, and traditional fixing mechanisms have poor clamping accuracy, which can easily cause deformation of the crankshaft contact surface and cause inconvenience to users. Therefore, we propose a crankshaft machining fixing mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a fixing mechanism for crankshaft machining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing mechanism for crankshaft machining, comprising a machining table, a first fixing frame and a second fixing frame arranged on both sides above the machining table, a base fixedly installed on one side of the first fixing frame, a limiting disk fixedly installed inside one side of the base, a rotating turntable clamped at the center of the edge side of the base, an outer ring tooth installed on the outer side of the turntable, an inner ring tooth installed on the inner side of the turntable, sliding holes are provided on the surfaces of the base and the limiting disk, a third slider is provided inside the sliding hole, a toothed groove is provided on one side of the third slider, and the base and the limiting disk are rotatably connected. A gear column is connected, with one side of the gear column meshing with the inner ring teeth and the other side of the gear column meshing with the tooth groove. A clamping block is fixedly installed at the end of the third slider. A connecting block is fixedly installed on one side of the base. A first motor is fixedly installed on one side of the connecting block. A gear disk is rotatably connected to the other side of the connecting block. One side of the gear disk is fixedly connected to the output end of the first motor and meshes with the outer ring teeth. A hydraulic cylinder is fixedly installed on the upper side of the second fixed frame. A connecting shaft slides through the surface of the second fixed frame, and a positioning plate is rotatably installed at the end of the connecting shaft.

[0006] Preferably, a first groove is formed in the middle of the surface of the processing table, and a lead screw is rotatably connected inside the first groove. A second motor is fixedly installed on one side of the outer end of the processing table, and the output end of the second motor is fixedly connected to the lead screw. A first slider is threaded on the surface of the lead screw, and the first slider is slidably disposed inside the first groove. A slide plate is fixedly installed above the first slider, and the bottom of the second fixing frame is fixedly installed on the surface of the slide plate.

[0007] Preferably, the processing table has symmetrical second sliding grooves on both sides of its surface. The second sliding grooves are distributed on both sides of the first sliding groove. A fixing rod is fixedly installed on the inner side of the second sliding groove. A second slider is slidably connected to the surface of the fixing rod. The surface of the second slider is fixedly connected to the bottom of the sliding plate.

[0008] Preferably, four sets of sliding holes are arranged in a ring around the center of the base, and the sliding holes are opened on the surface of the base and the limiting plate.

[0009] Preferably, the sliding hole is L-shaped, the third slider is L-shaped, and the third slider is slidably positioned inside the sliding hole.

[0010] Preferably, a protective pad is provided on one side surface of the clamping block, and the protective pad is embedded and fixedly installed on the surface of the clamping block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By using circumferentially distributed clamping blocks, the front surface of the crankshaft can be clamped as the clamping blocks move toward the center of the limiting plate. The hydraulic cylinder drives the positioning plate to abut against the output end of the crankshaft, thereby achieving the effect of quickly fixing the crankshaft. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention;

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a top view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the base structure of this utility model.

[0017] In the diagram: 1. Machining table; 2. First fixed frame; 3. Base; 301. Limiting plate; 4. Turntable; 5. Outer ring tooth; 6. Inner ring tooth; 7. Sliding hole; 8. Third slider; 9. Tooth groove; 10. Gear column; 11. Clamping block; 12. Protective pad; 13. Connecting block; 14. First motor; 15. Gear disk; 16. First slide groove; 17. Lead screw; 18. Second motor; 19. Second slide groove; 20. Fixed rod; 21. First slider; 22. Second slider; 23. Slide plate; 24. Second fixed frame; 25. Hydraulic cylinder; 26. Connecting shaft; 27. Positioning plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a fixing mechanism for crankshaft machining, including a machining table 1. A first fixing frame 2 and a second fixing frame 24 are arranged on both sides above the machining table 1. A base 3 is fixedly installed on one side of the first fixing frame 2. A limiting disk 301 is fixedly installed inside one side of the base 3. A turntable 4 is rotatably clamped at the center of the edge side of the base 3. An outer ring tooth 5 is installed on the outer side of the turntable 4, and an inner ring tooth 6 is installed on the inner side of the turntable 4. Sliding holes 7 are provided on the surfaces of both the base 3 and the limiting disk 301. A third slider 8 is provided inside the sliding hole 7. A toothed groove 9 is provided on one side of the third slider 8. A gear column 10 is rotatably connected between the base 3 and the limiting disk 301. One side of the gear post 10 is meshed with the inner ring tooth 6, and the other side of the gear post 10 is meshed with the tooth groove 9. A clamping block 11 is fixedly installed at the end of the third slider 8. A connecting block 13 is fixedly installed on one side of the base 3. A first motor 14 is fixedly installed on one side of the connecting block 13. A gear disk 15 is rotatably connected to the other side of the connecting block 13. One side of the gear disk 15 is fixedly connected to the output end of the first motor 14. One side of the gear disk 15 is meshed with the outer ring tooth 5. A hydraulic cylinder 25 is fixedly installed on one side above the second fixed frame 24. A connecting shaft 26 is slidably passed through the surface of the second fixed frame 24. A positioning plate 27 is rotatably installed at the end of the connecting shaft 26.

[0020] Specifically, a first groove 16 is provided in the middle of the surface of the processing table 1. A lead screw 17 is rotatably connected inside the first groove 16. A second motor 18 is fixedly installed on one side of the outer end of the processing table 1. The output end of the second motor 18 is fixedly connected to the lead screw 17. A first slider 21 is threaded on the surface of the lead screw 17. The first slider 21 is slidably disposed inside the first groove 16. A slide plate 23 is fixedly installed above the first slider 21. The bottom of the second fixing frame 24 is fixedly installed on the surface of the slide plate 23.

[0021] Specifically, the processing table 1 has symmetrical second slide grooves 19 on both sides of its surface. The second slide grooves 19 are distributed on both sides of the first slide groove 16. A fixing rod 20 is fixedly installed on the inner side of the second slide groove 19. A second slider 22 is slidably connected to the surface of the fixing rod 20. The surface of the second slider 22 is fixedly connected to the bottom of the slide plate 23.

[0022] Specifically, four sets of sliding holes 7 are arranged in a ring around the center of the base 3, and the sliding holes 7 are opened on the surface of the base 3 and the limiting plate 301.

[0023] Specifically, the sliding hole 7 is L-shaped, the third slider 8 is L-shaped, and the third slider 8 is limited and slidably located inside the sliding hole 7.

[0024] Specifically, a protective pad 12 is provided on one side surface of the clamping block 11, and the protective pad 12 is embedded and fixedly installed on the surface of the clamping block 11.

[0025] In this embodiment, based on the length of the crankshaft, the operation of the second motor 18 drives the lead screw 17 to rotate. The rotation of the lead screw 17 drives the first slider 21 to slide inside the first slide groove 16. The movement of the first slider 21 drives the slide plate 23 and the second fixed frame 24 to move, thereby adjusting the distance between the positioning plate 27 and the clamping block 11. The second slide groove 19 and the fixed rod 20 improve the stability of the second fixed frame 24 during movement. The front end of the crankshaft is placed inside the limiting plate 301 and between the clamping blocks 11. The operation of the first motor 14 drives the gear disk 15 to rotate. The rotation of the gear disk 15... The outer ring teeth 5 can drive the turntable 4 to rotate. The rotation of the turntable 4 can drive the gear column 10 to rotate through the inner ring teeth 6. The rotation of the gear column 10 can drive the third slider 8 to move inside the sliding hole 7 through the tooth groove 9. This allows the third slider 8 to drive the end clamping block 11 to clamp and fix the front end surface of the crankshaft. The protective pad 12 prevents the clamping block 11 from scratching the front end surface of the crankshaft. After the front end of the crankshaft is fixed, the operation of the hydraulic cylinder 25 can drive the connecting shaft 26 and the positioning plate 27 to move, thereby abutting the output end of the crankshaft. Combined with the clamping action of the clamping block 11, the crankshaft is fixed.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing mechanism for crankshaft machining, comprising a machining table (1), characterized in that: The processing table (1) is provided with a first fixed frame (2) and a second fixed frame (24) on both sides above. A base (3) is fixedly installed on one side of the first fixed frame (2). A limiting plate (301) is fixedly installed inside one side of the base (3). A turntable (4) is limited and clamped in the middle of the edge side of the base (3). An outer ring tooth (5) is installed on the outer side of the turntable (4). An inner ring tooth (6) is installed on the inner side of the turntable (4). Sliding holes (7) are opened on the surfaces of the base (3) and the limiting plate (301). A third slider (8) is provided inside the sliding hole (7). A tooth groove (9) is opened on one side of the third slider (8). A gear column (10) is rotatably connected between the base (3) and the limiting plate (301). One side of the gear column (10) is connected to the inner ring tooth (6). 6) For meshing connection, the other side of the gear column (10) is meshed with the tooth groove (9). The end of the third slider (8) is fixedly installed with a clamping block (11). The base (3) is fixedly installed with a connecting block (13) on one side. The first motor (14) is fixedly installed on one side of the connecting block (13). The other side of the connecting block (13) is rotatably connected with a gear disk (15). One side of the gear disk (15) is fixedly connected with the output end of the first motor (14). One side of the gear disk (15) is meshed with the outer ring tooth (5). The upper side of the second fixing frame (24) is fixedly installed with a hydraulic cylinder (25). The surface of the second fixing frame (24) is slidably provided with a connecting shaft (26). The end of the connecting shaft (26) is limited and rotatably installed with a positioning plate (27).

2. The fixing mechanism for crankshaft machining according to claim 1, characterized in that: The processing table (1) has a first groove (16) in the middle of its surface. A lead screw (17) is rotatably connected inside the first groove (16). A second motor (18) is fixedly installed on one side of the outer end of the processing table (1). The output end of the second motor (18) is fixedly connected to the lead screw (17). A first slider (21) is threaded on the surface of the lead screw (17). The first slider (21) is slidably disposed inside the first groove (16). A slide plate (23) is fixedly installed above the first slider (21). The bottom of the second fixing frame (24) is fixedly installed on the surface of the slide plate (23).

3. The crankshaft machining fixing mechanism according to claim 1, characterized in that: The processing table (1) has symmetrical second slide grooves (19) on both sides of its surface. The second slide grooves (19) are distributed on both sides of the first slide groove (16). A fixing rod (20) is fixedly installed on the inner side of the second slide groove (19). A second slider (22) is slidably connected to the surface of the fixing rod (20). The surface of the second slider (22) is fixedly connected to the bottom of the slide plate (23).

4. The fixing mechanism for crankshaft machining according to claim 1, characterized in that: The sliding holes (7) are arranged in four sets around the center of the base (3), and the sliding holes (7) are opened on the surface of the base (3) and the limiting plate (301).

5. The fixing mechanism for crankshaft machining according to claim 1, characterized in that: The sliding hole (7) is L-shaped, the third slider (8) is L-shaped, and the third slider (8) is limited and slidably disposed inside the sliding hole (7).

6. The fixing mechanism for crankshaft machining according to claim 1, characterized in that: A protective pad (12) is provided on one side surface of the clamping block (11), and the protective pad (12) is embedded and fixedly installed on the surface of the clamping block (11).

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