Rotary table directly driven by torque motor

Abstract

The utility model relates to the technical field of rotary tables, in particular to a torque motor direct-drive rotary table which comprises a rotary table body. A clamping box is arranged at the top of the rotary table body, a to-be-machined part is arranged at the top of the clamping box, clamping jaws are arranged at the four corners of the to-be-machined part, moving blocks are fixedly connected to the bottoms of the clamping jaws, and the moving blocks are slidably connected with the clamping box; and a rotating mechanism for controlling the clamping jaws to clamp and fix the to-be-machined workpiece at the same time is arranged in the clamping box. Under the matching action of the clamping box, the workpiece to be machined, the clamping jaw, the moving block and the rotating mechanism, the workpiece to be machined can be centrally positioned, clamped and fixed, the situation that the machining precision of the workpiece to be machined is reduced due to the fact that the workpiece to be machined shifts in the machining process is avoided, the machining precision of the workpiece to be machined is improved, and the machining efficiency is improved. And therefore, the machining quality of the to-be-machined workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turntables, in particular to a torque motor direct drive turntable. Background Technique

[0002] The numerical control turntable is one of the important functional components of a horizontal machining center. It participates in the integration of the horizontal machining center and controls as the fourth axis and coordinate axis. Its accuracy and performance directly affect the accuracy and performance of the main machine.

[0003] The utility model patent with the publication number CN216802666U discloses a hydrostatic bearing torque motor direct drive high-precision numerical control turntable, belonging to the technical field related to numerical control lathes. It aims to solve the problem that when the numerical control turntable is braked after use, it usually directly stops rotating through the brake, wasting a lot of kinetic energy. It includes a driving seat, on the top of the driving seat is fixedly installed a functional table, the output end of the driving seat is fixedly installed with a rotating table rotatably connected to the functional table, a circular groove is opened on the top of the functional table, and a energy storage component extending above the functional table is fixedly installed on the inner side wall of the circular groove. A clamping groove is opened at the bottom of the rotating table, a first electric push rod is fixedly installed inside the clamping groove, a energy storage plate is fixedly installed at the bottom of the first electric push rod, a connecting piece is fixedly installed on the left side of the functional table, a spring is fixedly installed on the left side of the connecting piece, and a moving piece is fixedly installed on the left side of the spring. This hydrostatic bearing torque motor direct drive high-precision numerical control turntable has the advantage of being able to store kinetic energy to save energy when a part processing is completed.

[0004] However, the above patent still has deficiencies: Although the patent can store kinetic energy to save energy when a part processing is completed, it does not have the function of clamping and fixing the workpiece. When the workpiece is processed on the turntable, the workpiece generates displacement due to shaking, resulting in low machining accuracy of the workpiece and reducing the machining quality of the workpiece. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a torque motor direct drive turntable to solve the problem that it does not have the function of clamping and fixing the workpiece as mentioned in the above background technique, resulting in displacement of the workpiece due to shaking when the workpiece is processed on the turntable, low machining accuracy of the workpiece, and reduction of the machining quality of the workpiece.

[0006] The technical solution of the utility model is as follows:

[0007] A torque motor direct drive turntable, comprising: a turntable body; a clamping box is arranged on the top of the turntable body, a workpiece to be processed is arranged on the top of the clamping box, clamping jaws are arranged at the four corners of the workpiece to be processed, moving blocks are fixedly connected to the bottoms of the clamping jaws, and the moving blocks are all slidably connected to the clamping box; a rotating mechanism for controlling the clamping jaws to clamp and fix the workpiece to be processed simultaneously is arranged inside the clamping box; lifting mechanisms for controlling the height of the workpiece to be processed to be adjusted are arranged on the four sides of the clamping box.

[0008] Preferably, the rotating mechanism comprises: a first rotating shaft is fixedly connected inside the clamping box, and a rotating sleeve is rotatably connected to the outer surface of the first rotating shaft; a circular plate is fixedly connected to the top of the rotating sleeve, arc-shaped grooves are formed at the four corners of the circular plate, cylindrical blocks are arranged inside the arc-shaped grooves, and the tops of the cylindrical blocks are respectively fixedly connected to the moving blocks; a power mechanism for preventing the clamping jaws from loosening is arranged at the bottom of the rotating sleeve.

[0009] Preferably, the power mechanism comprises: a worm gear is fixedly connected to the bottom of the rotating sleeve, a worm is meshed with one side of the worm gear, a second rotating shaft is fixedly connected to the center of the worm, and both ends of the second rotating shaft are rotatably connected to fixing plates, and the fixing plates are all fixedly connected to the clamping box; a first motor is fixedly connected to one side of the fixing plate away from the worm, and the second rotating shaft is fixedly connected to the output end of the first motor.

[0010] Preferably, the lifting mechanism comprises: lifting blocks are fixedly connected to the four sides of the clamping box, threaded sleeves are fixedly connected to the bottoms of the lifting blocks, and the bottoms of the threaded sleeves all penetrate through the turntable body and extend to the inside of the turntable body; screws are all threadedly connected inside the threaded sleeves, and the bottoms of the screws are all rotatably connected to the turntable body; a gear mechanism for controlling the four screws to rotate synchronously is arranged at the center of the turntable body.

[0011] Preferably, the gear mechanism comprises: a second motor is fixedly connected to the center of the turntable body, a third rotating shaft is fixedly connected to the output end of the second motor, and a first gear is fixedly connected to one end of the third rotating shaft away from the second motor; second gears are meshed with the four corners of the first gear, and the four second gears are respectively fixed to the outer surfaces of the screws.

[0012] Preferably, limiting sliding strips are arranged on both sides of the moving block, sliding grooves adapted to the limiting sliding strips are formed at the positions of the moving block close to the limiting sliding strips, and the moving block is slidably connected to the limiting sliding strip through the sliding groove.

[0013] Preferably, damping pads are arranged on the sides of the clamping jaws close to the workpiece to be processed, and the damping pads are respectively fixedly connected to the clamping jaws.

[0014] Preferably, four supporting feet are fixedly connected to the bottom of the turntable body, and anti-slip pads are fixedly connected to the bottoms of the supporting feet.

[0015] Preferably, limiting rings are arranged on the outer surfaces of the bottoms of the thread sleeves, and the limiting rings are fixedly connected to the thread sleeves respectively.

[0016] Preferably, the first motor and the second motor are both electrically connected to a remote controller through a remote transmission module, and the remote transmission module is fixedly connected to the turntable body.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] Firstly, through the cooperation of the clamping box, the workpiece to be processed, the jaws, the moving block and the rotating mechanism, the present utility model can perform central positioning and clamping fixation on the workpiece to be processed, avoiding displacement of the workpiece to be processed due to shaking during the processing, reducing the processing accuracy of the workpiece to be processed, improving the processing accuracy of the workpiece to be processed, and further improving the processing quality of the workpiece to be processed.

[0019] Secondly, through the cooperation of the clamping box, the workpiece to be processed, the jaws, the moving block, the rotating mechanism and the lifting mechanism, the present utility model can adjust the height of the workpiece to be processed according to the needs of the user, so as to facilitate the numerical control lathe to process workpieces to be processed with different volumes, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the torque motor direct drive turntable of the present utility model;

[0021] Figure 2 is a side view cross-sectional structural schematic diagram of the present utility model;

[0022] Figure 3 is the Figure 2 enlarged structural schematic diagram at A in the present utility model;

[0023] Figure 4 is a structural schematic diagram of the power mechanism of the present utility model;

[0024] Figure 5 is a structural schematic diagram of the lifting mechanism of the present utility model;

[0025] Figure 6 is a structural schematic diagram of the moving block of the present utility model.

[0026] In the figure:

[0027] 1. Turntable body; 2. Clamping box; 3. Workpiece to be machined; 4. Claw; 5. Moving block; 6. Rotating mechanism; 7. Lifting mechanism; 8. First rotating shaft; 9. Rotating sleeve; 10. Circular plate; 11. Arc-shaped groove; 12. Cylindrical block; 13. Power mechanism; 14. Worm gear; 15. Worm; 16. Second rotating shaft; 17. Fixed plate; 18. First motor; 19. Lifting block; 20. Threaded sleeve; 21. Screw; 22. Gear mechanism; 23. Second motor; 24. Third rotating shaft; 25. First gear; 26. Second gear; 27. Limit slide bar; 28. Slide groove; 29. Damping pad; 30. Support foot; 31. Anti-slip pad; 32. Limit ring; 33. Remote transmission module. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 6 , and the above technical solutions will be described in detail through the following embodiments of the present invention:

[0030] A torque motor direct drive turntable includes: a turntable body 1; a clamping box 2 is arranged on the top of the turntable body 1, a workpiece to be machined 3 is arranged on the top of the clamping box 2, claws 4 are arranged at the four corners of the workpiece to be machined 3, and moving blocks 5 are fixedly connected to the bottoms of the claws 4, and the moving blocks 5 are all slidably connected to the clamping box 2; a rotating mechanism 6 for controlling the claws 4 to clamp and fix the workpiece to be machined 3 at the same time is arranged inside the clamping box 2; lifting mechanisms 7 for controlling the height of the workpiece to be machined 3 to be adjusted are arranged on the four sides of the clamping box 2. The user places the workpiece to be machined 3 on the clamping box 2, and then controls the four moving blocks 5 to move towards the center of the clamping box 2 at the same time through the rotating mechanism 6. When the moving blocks 5 move, they drive the claws 4, so that the four claws 4 can position and clamp and fix the workpiece to be machined 3 at the same time, avoiding the displacement of the workpiece to be machined 3 due to shaking during the machining process, resulting in a reduction in the machining accuracy of the workpiece to be machined 3, improving the machining accuracy of the workpiece to be machined 3, and further improving the machining quality of the workpiece to be machined 3.

[0031] Such as Figure 2 , Figure 4 and Figure 6As shown in the figure, the rotating mechanism 6 includes: a first rotating shaft 8 is fixedly connected inside the clamping box 2, and a rotating sleeve 9 is rotatably connected to the outer surface of the first rotating shaft 8; a circular plate 10 is fixedly connected to the top of the rotating sleeve 9, arc-shaped grooves 11 are formed at the four corners of the circular plate 10, cylindrical blocks 12 are arranged inside the arc-shaped grooves 11, and the top ends of the cylindrical blocks 12 are fixedly connected to the moving blocks 5 respectively; a power mechanism 13 for preventing the clamping jaws 4 from loosening is arranged at the bottom of the rotating sleeve 9, the power mechanism 13 drives the rotating sleeve 9 to rotate on the surface of the first rotating shaft 8, while the rotating sleeve 9 rotates, it drives the circular plate 10, and the circular plate 10 rotates to push the cylindrical blocks 12 through the arc-shaped grooves 11 inside it, and the cylindrical blocks 12 drive the moving blocks 5 to slide inside the clamping box 2.

[0032] As Figure 3 and Figure 4 shown in the figure, the power mechanism 13 includes: a worm gear 14 is fixedly connected to the bottom of the rotating sleeve 9, a worm 15 is meshed with one side of the worm gear 14, the center of the worm 15 is fixedly connected to a second rotating shaft 16, both ends of the second rotating shaft 16 are rotatably connected to fixing plates 17, and the fixing plates 17 are fixedly connected to the clamping box 2; a first motor 18 is fixedly connected to one side of one fixing plate 17 away from the worm 15, the second rotating shaft 16 is fixedly connected to the output end of the first motor 18, when the first motor 18 is started, the output end of the first motor 18 drives the second rotating shaft 16 to rotate between the two fixing plates 17, while the second rotating shaft 16 rotates, it drives the worm 15, the worm 15 drives the worm gear 14, and the worm gear 14 drives the rotating sleeve 9 to rotate on the surface of the first rotating shaft 8.

[0033] As Figure 2 shown in the figure, the lifting mechanism 7 includes: lifting blocks 19 are fixedly connected to the four sides of the clamping box 2, threaded sleeves 20 are fixedly connected to the bottoms of the lifting blocks 19, and the bottoms of the threaded sleeves 20 all penetrate through the turntable body 1 and extend to the inside of the turntable body 1; screw rods 21 are threadedly connected to the inside of the threaded sleeves 20, and the bottoms of the screw rods 21 are rotatably connected to the turntable body 1; a gear mechanism 22 for controlling the synchronous rotation of the four screw rods 21 is arranged at the center of the turntable body 1, the gear mechanism 22 drives the four screw rods 21 to rotate simultaneously inside the turntable body 1, while the screw rods 21 rotate, they push the threaded sleeves 20 to rise, while the threaded sleeves 20 rise, they drive the lifting blocks 19, and the lifting blocks 19 drive the workpiece 3 to be processed through the clamping box 2, achieving the purpose of controlling the height of the workpiece 3 to be processed.

[0034] As Figure 2 and Figure 5As shown in the figure, the gear mechanism 22 includes: a second motor 23 is fixedly connected to the center of the turntable body 1, an output end of the second motor 23 is fixedly connected to a third rotating shaft 24, and one end of the third rotating shaft 24 away from the second motor 23 is fixedly connected to a first gear 25; a second gear 26 is meshed with each of the four corners of the first gear 25, and the four second gears 26 are respectively fixed to the outer surface of the screw rod 21. When the second motor 23 is started, the output end of the second motor 23 drives the third rotating shaft 24, the third rotating shaft 24 drives the first gear 25, the first gear 25 simultaneously drives the four second gears 26 to rotate synchronously, and the second gears 26 respectively drive the screw rod 21 to rotate self.

[0035] As Figure 3 and Figure 6 shown in the figure, limiting slide bars 27 are arranged on both sides of the moving block 5, sliding grooves 28 adapted to the limiting slide bars 27 are respectively formed at positions of the moving block 5 close to the limiting slide bars 27, and the moving block 5 is slidably connected to the limiting slide bars 27 through the sliding grooves 28, so that the moving block 5 can be limited, and the moving block 5 can slide flexibly inside the clamping box 2.

[0036] As Figure 6 shown in the figure, damping pads 29 are arranged on one side of each clamping jaw 4 close to the workpiece to be machined 3, and the damping pads 29 are respectively fixedly connected to the clamping jaws 4, which improves the friction force between the clamping jaws 4 and the workpiece to be machined 3, and further improves the clamping stability of the workpiece to be machined 3.

[0037] As Figure 1 and Figure 2 shown in the figure, four supporting feet 30 are fixedly connected to the bottom of the turntable body 1, and anti-slip pads 31 are respectively fixedly connected to the bottoms of the supporting feet 30, which improves the anti-slip performance of the whole device and avoids the displacement phenomenon of the device due to vibration during operation.

[0038] As Figure 2 and Figure 5 shown in the figure, limiting rings 32 are arranged on the outer surface of the bottom of the threaded sleeve 20, and the limiting rings 32 are respectively fixedly connected to the threaded sleeve 20, which can limit the lifting height of the threaded sleeve 20 and avoid the situation that the threaded sleeve 20 is separated from the screw rod 21.

[0039] As Figure 2 shown in the figure, the first motor 18 and the second motor 23 are both electrically connected to a remote controller through a remote transmission module 33, and the remote transmission module 33 is fixedly connected to the turntable body 1, which is convenient for the user to remotely control the device and improves the practicability.

[0040] Working principle: The user places the workpiece 3 to be processed on the clamping box 2, and then starts the first motor 18. The output end of the first motor 18 drives the second rotating shaft 16 to rotate on its own between the two fixing plates 17. While the second rotating shaft 16 rotates on its own, it drives the worm 15, the worm 15 drives the worm gear 14, and the worm gear 14 drives the rotating sleeve 9 to rotate on its own on the surface of the first rotating shaft 8. While the rotating sleeve 9 rotates on its own, it drives the circular plate 10. The circular plate 10 rotates and pushes the cylindrical block 12 through the arc-shaped groove 11 inside it. The cylindrical block 12 drives the moving block 5, and the moving block 5 slides inside the clamping box 2 through the cooperation of the sliding groove 28 and the limiting slide bar 27. While the moving block 5 moves, it drives the claw 4, so that the four claws 4 simultaneously perform the functions of positioning and clamping and fixing the workpiece 3 to be processed, avoiding the displacement of the workpiece 3 to be processed due to shaking during the processing, resulting in a reduction in the processing accuracy of the workpiece 3 to be processed, improving the processing accuracy of the workpiece 3 to be processed, and thus improving the processing quality of the workpiece 3 to be processed.

[0041] Start the second motor 23. The output end of the second motor 23 drives the third rotating shaft 24, the third rotating shaft 24 drives the first gear 25, and the first gear 25 simultaneously drives the four second gears 26 to rotate synchronously. The second gears 26 respectively drive the screw rods 21 to rotate on their own. While the screw rods 21 rotate, they push the threaded sleeves 20 to rise. While the threaded sleeves 20 rise, they drive the lifting blocks 19, and the lifting blocks 19 drive the workpiece 3 to be processed through the clamping box 2, achieving the purpose of controlling the height of the workpiece 3 to be processed. The height of the workpiece 3 to be processed can be adjusted according to the needs of the user, so as to facilitate the numerical control lathe to process workpieces 3 of different volumes, improving the practicability.

[0042] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A torque motor direct drive turntable, comprising: A turntable body (1); Characterized in that a clamping box (2) is provided at the top of the turntable body (1), a workpiece to be processed (3) is provided at the top of the clamping box (2), clamping jaws (4) are provided at the four corners of the workpiece to be processed (3), moving blocks (5) are fixedly connected to the bottoms of the clamping jaws (4), and the moving blocks (5) are all slidably connected to the clamping box (2); A rotating mechanism (6) for controlling the clamping jaws (4) to clamp and fix the workpiece to be processed (3) simultaneously is provided inside the clamping box (2); Lifting mechanisms (7) for controlling the height adjustment of the workpiece to be processed (3) are provided on the four sides of the clamping box (2).

2. The torque motor direct drive turntable according to claim 1, wherein: The rotating mechanism (6) includes: A first rotating shaft (8) is fixedly connected inside the clamping box (2), and a rotating sleeve (9) is rotatably connected to the outer surface of the first rotating shaft (8); A circular plate (10) is fixedly connected to the top of the rotating sleeve (9), arc-shaped grooves (11) are provided at the four corners of the circular plate (10), cylindrical blocks (12) are provided inside the arc-shaped grooves (11), and the tops of the cylindrical blocks (12) are respectively fixedly connected to the moving blocks (5); A power mechanism (13) for preventing the clamping jaws (4) from loosening is provided at the bottom of the rotating sleeve (9).

3. The torque motor direct drive turntable according to claim 2, characterized in that: The power mechanism (13) includes: A worm gear (14) is fixedly connected to the bottom of the rotating sleeve (9), a worm (15) is engaged with one side of the worm gear (14), a second rotating shaft (16) is fixedly connected to the center of the worm (15), and the outer surfaces of both ends of the second rotating shaft (16) are rotatably connected to fixing plates (17), and the fixing plates (17) are all fixedly connected to the clamping box (2); A first motor (18) is fixedly connected to one side of one of the fixing plates (17) away from the worm (15), and the second rotating shaft (16) is fixedly connected to the output end of the first motor (18).

4. The torque motor direct drive turntable according to claim 1, wherein: The lifting mechanism (7) includes: Lifting blocks (19) are fixedly connected to the four sides of the clamping box (2), threaded sleeves (20) are fixedly connected to the bottoms of the lifting blocks (19), and the bottoms of the threaded sleeves (20) all penetrate through the turntable body (1) and extend to the inside of the turntable body (1); Screw rods (21) are all threadedly connected inside the threaded sleeves (20), and the bottoms of the screw rods (21) are all rotatably connected to the turntable body (1); A gear mechanism (22) for controlling the synchronous rotation of the four screw rods (21) is provided at the center of the turntable body (1).

5. The torque motor direct drive turntable according to claim 4, wherein: The gear mechanism (22) includes: A second motor (23) is fixedly connected to the center of the turntable body (1), a third rotating shaft (24) is fixedly connected to the output end of the second motor (23), and a first gear (25) is fixedly connected to one end of the third rotating shaft (24) away from the second motor (23); A second gear (26) is engaged with each of the four corners of the first gear (25), and the four second gears (26) are respectively fixed to the outer surfaces of the screw rods (21).

6. The torque motor direct drive turntable according to claim 1, characterized in that: Limit slide bars (27) are provided on both sides of the moving block (5), chutes (28) adapted to the limit slide bars (27) are provided near the moving block (5), and the moving block (5) is slidably connected to the limit slide bars (27) through the chutes (28).

7. The torque motor direct drive turntable according to claim 1, characterized in that: Damping pads (29) are provided on the sides of the clamping jaws (4) close to the workpiece to be processed (3), and the damping pads (29) are fixedly connected to the clamping jaws (4) respectively.

8. The torque motor direct drive turntable according to claim 1, characterized in that: Four supporting feet (30) are fixedly connected to the bottom of the turntable body (1), and anti-slip pads (31) are fixedly connected to the bottoms of the supporting feet (30).

9. The torque motor direct drive turntable according to claim 4, wherein: Limit rings (32) are provided on the outer surfaces of the bottoms of the threaded sleeves (20), and the limit rings (32) are fixedly connected to the threaded sleeves (20) respectively.

10. The torque motor direct drive turntable according to claim 3, characterized in that: The first motor (18) and the second motor (23) are both electrically connected to a remote controller through a remote transmission module (33), and the remote transmission module (33) is fixedly connected to the turntable body (1).

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