Workpiece fixing device for shaft sleeve machining machine tool

Abstract

The utility model relates to the technical field of shaft sleeve processing, and discloses a workpiece fixing device for a shaft sleeve processing machine tool, which comprises a working table, a workpiece fixing component is arranged at the top of the working table, a self-locking clamping driving mechanism is arranged on the inner wall of the workpiece fixing component, and the workpiece fixing component comprises a mounting disc. The bottom of the mounting disc is fixedly connected with the top of the workbench, and a first limiting groove is formed in the front end of the top of the inner wall of the mounting disc. A first fixing arc plate, a second fixing arc plate and a third fixing arc plate on the workpiece fixing assembly are driven by the self-locking clamping driving mechanism to move towards the outer side so that the shaft sleeve can be internally supported and fixed, and the shaft sleeves of different sizes can be clamped; and the first fixing arc plate, the second fixing arc plate and the third fixing arc plate clamp the shaft sleeve more stably, and the problem that the shaft sleeve vibrates and slips in the machining process, so that the safety operation efficiency is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve processing, in particular to a workpiece fixing device for a shaft sleeve processing machine tool. Background Art

[0002] The sleeve is a cylindrical mechanical part that is sleeved on the rotating shaft and is a component of the sliding bearing. Generally speaking, the sleeve and the bearing seat adopt an interference fit, and the sleeve and the shaft adopt a clearance fit. When machining sleeve workpieces by machine tools, the inner circle of the sleeve workpiece is often ground and the outer circle is finely machined by grinding and other machining methods. When grinding some sleeve workpieces, it is necessary to use a workpiece fixing device for sleeve machining machine tools.

[0003] At present, most of the existing workpiece fixing devices for sleeve processing machines adopt a fixed structure, which cannot be adjusted according to the size of the sleeve and cannot meet the needs of sleeve workpiece processing. Secondly, due to the vibration generated during processing, slipping is prone to occur, thereby reducing the safety operation efficiency.

[0004] To this end, we propose a workpiece fixing device for a sleeve processing machine tool. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a workpiece fixing device for a shaft sleeve processing machine tool.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a workpiece fixing device for a shaft sleeve processing machine tool, comprising a worktable, a workpiece fixing assembly is arranged on the top of the worktable, a self-locking clamping drive mechanism is arranged on the inner wall of the workpiece fixing assembly, the workpiece fixing assembly comprises a mounting plate, and the bottom of the mounting plate is fixedly connected to the top of the worktable, a first limiting groove is opened at the front end of the top of the inner wall of the mounting plate, a second limiting groove is opened at the left side of the top of the inner wall of the mounting plate, a third limiting groove is opened at the right side of the top of the inner wall of the mounting plate, a first limiting movable rod is movably installed at the first limiting groove on the inner wall of the mounting plate, and a bottom of the first limiting movable rod is fixedly installed near the center of the mounting plate. A first connecting column, a first limiting movable rod is fixedly installed with a first fixed arc plate at one end away from the center of the mounting disk, the inner wall of the mounting disk is located at the second limiting groove and a second limiting movable rod is movably installed, the bottom of the second limiting movable rod is fixedly installed with a second connecting column near the center of the mounting disk, the second limiting movable rod is fixedly installed with a second fixed arc plate at one end away from the center of the mounting disk, the inner wall of the mounting disk is located at the third limiting groove and a third limiting movable rod is movably installed, the self-locking clamping drive mechanism includes a first mounting block, and the left side wall of the first mounting block is fixedly connected to the left side of the inner wall of the mounting disk, a servo motor is fixedly installed on the right side wall of the first mounting block, and a worm is fixedly installed on the output end of the servo motor.

[0007] Preferably, a third connecting column is fixedly installed on the bottom of the third limiting movable rod near the center of the mounting plate, and a third fixed arc plate is fixedly installed on one end of the third limiting movable rod away from the center of the mounting plate.

[0008] Preferably, a second mounting block is movably mounted on the right side wall of the worm, and the right side wall of the second mounting block is fixedly connected to the right side of the inner wall of the mounting plate.

[0009] Preferably, a worm wheel is movably engaged at the rear end of the outer wall of the worm, and a rotating column is fixedly mounted on the inner wall of the worm wheel.

[0010] Preferably, a mounting plate is movably mounted on the bottom of the rotating column, and an outer wall of the mounting plate is fixedly connected to an inner wall of the mounting disk.

[0011] Preferably, a rotating disk is fixedly mounted on the top of the rotating column.

[0012] Preferably, a first guide arc groove is provided at the front end of the bottom of the rotating disk, and the first guide arc groove is movably connected to the outer wall of the first connecting column.

[0013] Preferably, a second guide arc groove is opened on the left side of the bottom of the rotating disk, and the second guide arc groove is movably connected to the outer wall of the second connecting column.

[0014] Preferably, a third guide arc groove is provided on the right side of the bottom of the rotating disk, and the third guide arc groove is movably connected to the outer wall of the third connecting column.

[0015] Beneficial Effects

[0016] The utility model provides a workpiece fixing device for a shaft sleeve processing machine tool. It has the following beneficial effects:

[0017] (1) The workpiece fixing device for a sleeve processing machine tool is provided with a workpiece fixing assembly and a self-locking clamping drive mechanism. The self-locking clamping drive mechanism drives the first fixed arc plate, the second fixed arc plate and the third fixed arc plate on the workpiece fixing assembly to move outward to fix the sleeve internally. The sleeves of different sizes can be clamped, and the first fixed arc plate, the second fixed arc plate and the third fixed arc plate clamp the sleeve more firmly, thereby avoiding the problem of vibration and slipping of the sleeve during processing, thereby reducing the safety operation efficiency.

[0018] (2) The workpiece fixing device for a shaft sleeve processing machine tool is provided with a worm and a worm wheel. The worm can drive the worm wheel to rotate while the worm wheel cannot drive the worm to rotate. Therefore, the whole device has a self-locking characteristic, so that the whole device is not easy to loosen when clamping and fixing the shaft sleeve, thereby further improving the fixing effect of the whole device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the workpiece fixing assembly of the utility model;

[0021] Figure 3 It is a schematic diagram of the bottom structure of the self-locking clamping drive mechanism of the utility model.

[0022] Legend: 10. Workbench; 11. Workpiece fixing assembly; 12. Self-locking clamping drive mechanism; 13. Mounting plate; 14. First limit movable rod; 15. First connecting column; 16. First fixed arc plate; 17. Second limit movable rod; 18. Second connecting column; 19. Second fixed arc plate; 20. Third limit movable rod; 21. Third connecting column; 22. Third fixed arc plate; 23. First mounting block; 24. Servo motor; 25. Worm; 26. Second mounting block; 27. Worm wheel; 28. Rotating column; 29. ​​Mounting plate; 30. Rotating plate; 31. First guide arc groove; 32. Second guide arc groove; 33. Third guide arc groove. DETAILED DESCRIPTION

[0023] Embodiment 1: A workpiece fixing device for a sleeve processing machine tool, such as Figure 1 - Figure 2 As shown, the workbench 10 includes a workpiece fixing assembly 11 on the top of the workbench 10, and a self-locking clamping drive mechanism 12 is provided on the inner wall of the workpiece fixing assembly 11. The workpiece fixing assembly 11 includes a mounting plate 13, and the bottom of the mounting plate 13 is fixedly connected to the top of the workbench 10. A first limiting groove is provided at the front end of the top of the inner wall of the mounting plate 13, a second limiting groove is provided at the left side of the top of the inner wall of the mounting plate 13, and a third limiting groove is provided at the right side of the top of the inner wall of the mounting plate 13. The self-locking clamping drive mechanism 12 drives the first fixed arc plate 16, the second fixed arc plate 19 and the third fixed arc plate 22 on the workpiece fixing assembly 11 to move outward to fix the shaft sleeve internally, so that shaft sleeves of different sizes can be clamped, and the first fixed arc plate 16, the second fixed arc plate 19 and the third fixed arc plate 22 clamp the shaft sleeve more firmly, avoiding the problem of vibration and slipping of the shaft sleeve during processing, thereby reducing the safety operation efficiency.

[0024] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the inner wall of the mounting plate 13 is located at the first limiting groove and is movably installed with a first limiting movable rod 14, the bottom of the first limiting movable rod 14 is fixedly installed with a first connecting column 15 near the center of the mounting plate 13, and the end of the first limiting movable rod 14 away from the center of the mounting plate 13 is fixedly installed with a first fixed arc plate 16, the inner wall of the mounting plate 13 is located at the second limiting groove and is movably installed with a second limiting movable rod 17, the bottom of the second limiting movable rod 17 is fixedly installed with a second connecting column 18 near the center of the mounting plate 13, and the end of the second limiting movable rod 17 away from the center of the mounting plate 13 is fixedly installed with a second fixed arc plate 19. The inner wall of the mounting plate 13 is located at the third limiting groove and a third limiting movable rod 20 is movably installed thereon. A third connecting column 21 is fixedly installed at the bottom of the third limiting movable rod 20 near the center of the mounting plate 13. A third fixed arc plate 22 is fixedly installed at one end of the third limiting movable rod 20 away from the center of the mounting plate 13. By providing a worm 25 and a worm wheel 27, the worm 25 can drive the worm wheel 27 to rotate while the worm wheel 27 cannot drive the worm 25 to rotate. Therefore, the entire device has a self-locking feature, so that the entire device is not easy to loosen when clamping and fixing the shaft sleeve, thereby further improving the fixing effect of the entire device.

[0025] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the self-locking clamping drive mechanism 12 includes a first mounting block 23, and the left side wall of the first mounting block 23 is fixedly connected to the left side of the inner wall of the mounting plate 13, a servo motor 24 is fixedly installed on the right side wall of the first mounting block 23, a worm 25 is fixedly installed on the output end of the servo motor 24, a second mounting block 26 is movably installed on the right side wall of the worm 25, and the right side wall of the second mounting block 26 is fixedly connected to the right side of the inner wall of the mounting plate 13, a worm wheel 27 is movably engaged with the rear end of the outer wall of the worm 25, a rotating column 28 is fixedly installed on the inner wall of the worm wheel 27, and the bottom of the rotating column 28 A mounting plate 29 is movably installed, and the outer wall of the mounting plate 29 is fixedly connected to the inner wall of the mounting plate 13. A rotating disk 30 is fixedly installed on the top of the rotating column 28. A first guide arc groove 31 is opened at the front end of the bottom of the rotating disk 30, and the first guide arc groove 31 is movably connected to the outer wall of the first connecting column 15. A second guide arc groove 32 is opened on the left side of the bottom of the rotating disk 30, and the second guide arc groove 32 is movably connected to the outer wall of the second connecting column 18. A third guide arc groove 33 is opened on the right side of the bottom of the rotating disk 30, and the third guide arc groove 33 is movably connected to the outer wall of the third connecting column 21.

[0026] The working principle of the utility model is as follows: by turning on the switch of the servo motor 24, the output end of the servo motor 24 drives the worm 25 to start rotating, the worm 25 drives the rotating column 28 to start rotating through the worm gear 27, the rotating column 28 drives the rotating disk 30 to start rotating, the rotating disk 30 drives the first connecting column 15, the second connecting column 18 and the third connecting column 21 to start moving outward through the first guide arc groove 31, the second guide arc groove 32 and the third guide arc groove 33 respectively, the first connecting column 15, the second connecting column 18 and the third connecting column 21 drive the first fixed arc plate 16, the second fixed arc plate 19 and the third fixed arc plate 22 to move outward to fix the shaft sleeve through the first limiting active rod 14, the second limiting active rod 17 and the third limiting active rod 20 respectively.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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 may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A workpiece fixing device for a sleeve processing machine tool, comprising a worktable (10), characterized in that: The top of the workbench (10) is provided with a workpiece fixing assembly (11), the inner wall of the workpiece fixing assembly (11) is provided with a self-locking clamping drive mechanism (12), the workpiece fixing assembly (11) comprises a mounting plate (13), and the bottom of the mounting plate (13) is fixedly connected to the top of the workbench (10), a first limiting groove is provided at the front end of the top of the inner wall of the mounting plate (13), a second limiting groove is provided at the left side of the top of the inner wall of the mounting plate (13), and a third limiting groove is provided at the right side of the top of the inner wall of the mounting plate (13), a first limiting movable rod (14) is movably installed at the first limiting groove on the inner wall of the mounting plate (13), a first connecting column (15) is fixedly installed at the bottom of the first limiting movable rod (14) near the center of the mounting plate (13), and one end of the first limiting movable rod (14) away from the center of the mounting plate (13) is fixed A first fixed arc plate (16) is installed, a second limiting movable rod (17) is movably installed on the inner wall of the mounting plate (13) at the second limiting groove, a second connecting column (18) is fixedly installed at the bottom of the second limiting movable rod (17) near the center of the mounting plate (13), a second fixed arc plate (19) is fixedly installed at one end of the second limiting movable rod (17) away from the center of the mounting plate (13), a third limiting movable rod (20) is movably installed on the inner wall of the mounting plate (13) at the third limiting groove, the self-locking clamping drive mechanism (12) comprises a first mounting block (23), and the left side wall of the first mounting block (23) is fixedly connected to the left side of the inner wall of the mounting plate (13), a servo motor (24) is fixedly installed on the right side wall of the first mounting block (23), and a worm (25) is fixedly installed at the output end of the servo motor (24).

2. The workpiece fixing device for a sleeve processing machine tool according to claim 1, characterized in that: A third connecting column (21) is fixedly mounted on the bottom of the third position-limiting movable rod (20) near the center of the mounting plate (13), and a third fixed arc plate (22) is fixedly mounted on one end of the third position-limiting movable rod (20) away from the center of the mounting plate (13).

3. The workpiece fixing device for a sleeve processing machine tool according to claim 1, characterized in that: A second mounting block (26) is movably mounted on the right side wall of the worm (25), and the right side wall of the second mounting block (26) is fixedly connected to the right side of the inner wall of the mounting plate (13).

4. The workpiece fixing device for a sleeve processing machine tool according to claim 1, characterized in that: A worm wheel (27) is movably engaged at the rear end of the outer wall of the worm (25), and a rotating column (28) is fixedly mounted on the inner wall of the worm wheel (27).

5. The workpiece fixing device for a sleeve processing machine tool according to claim 4, characterized in that: A mounting plate (29) is movably mounted on the bottom of the rotating column (28), and the outer wall of the mounting plate (29) is fixedly connected to the inner wall of the mounting plate (13).

6. The workpiece fixing device for a sleeve processing machine tool according to claim 4, characterized in that: A rotating disk (30) is fixedly mounted on the top of the rotating column (28).

7. The workpiece fixing device for a sleeve processing machine tool according to claim 6, characterized in that: A first guide arc groove (31) is provided at the front end of the bottom of the rotating disk (30), and the first guide arc groove (31) is movably connected to the outer wall of the first connecting column (15).

8. The workpiece fixing device for a sleeve processing machine tool according to claim 6, characterized in that: A second guide arc groove (32) is provided on the left side of the bottom of the rotating disk (30), and the second guide arc groove (32) is movably connected to the outer wall of the second connecting column (18).

9. The workpiece fixing device for a sleeve processing machine tool according to claim 6, characterized in that: A third guide arc groove (33) is provided on the right side of the bottom of the rotating disk (30), and the third guide arc groove (33) is movably connected to the outer wall of the third connecting column (21).

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