Angle-adjustable numerical control machine tool worktable

By using a worm gear structure and a transmission system that combines limit teeth with a drive motor, the problem of cumbersome operation for adjusting the angle of the CNC machine tool worktable is solved, enabling rapid angle adjustment and locking, and improving machining accuracy and flexibility.

CN223789927UActive Publication Date: 2026-01-13DONGGUAN TANZHOU TECH CO LTD
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Patent Information

Application Number
CN202520046935.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-13
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

The existing methods for adjusting the angle of the CNC machine tool worktable are cumbersome and can easily lead to stripped nuts, affecting machining accuracy and flexibility.

Method used

The transmission system, which combines a worm gear structure with limit teeth and a drive motor, enables rapid angle adjustment and locking of the worktable through the cooperation of limit rings and limit blocks, simplifying the operation process.

Benefits of technology

It enables rapid angle adjustment and locking of the worktable, simplifies the operation steps, improves machining accuracy and flexibility, and avoids the problem of multiple adjustments and re-clamping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to numerical control machine tool technical field discloses an angle adjustable numerical control machine tool workstation, including workstation, the workstation bottom fixedly connected with connecting rod, the connecting rod outer wall rotationally connected with fixed base, the fixed base top fixedly connected with worm wheel, the worm wheel is connected with worm, the worm outer wall rotationally connected in the inner wall of workstation, the worm runs through the inner wall of workstation and extends, the worm front fixedly connected with rotation handle, the worm outer wall is opened and has the limit tooth, the worm outer wall is opened and has the avoidance groove. The utility model discloses when the workstation angle adjustment is finished, by pulling the limit handle outward, limit handle pull connecting rod no.
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Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to an angle-adjustable CNC machine tool worktable. Background Technology

[0002] An adjustable CNC machine tool table (also called an adjustable angle table or adjustable tilt table) is a key component of CNC machine tools. It is typically used to support and position workpieces, allowing them to be at different angles during machining. By adjusting the angle of the table, workpieces with complex shapes or different angle requirements can be machined, improving the machining accuracy and flexibility of the machine tool.

[0003] In the existing technology, most worktables use worm gears and worm wheels for angle adjustment. After the angle is adjusted, most of them use bolts, nuts and friction between the device to lock the device. This locking and fixing method is relatively cumbersome to operate and is prone to stripping the nuts after long-term use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an angle-adjustable CNC machine tool worktable.

[0005] This utility model is achieved using the following technical solution: an angle-adjustable CNC machine tool worktable, including a worktable, a connecting rod fixedly connected to the bottom of the worktable, a fixed seat rotatably connected to the outer wall of the connecting rod, a worm gear fixedly connected to the top of the fixed seat, a worm gear meshing with the worm, the outer wall of the worm rotatably connected to the inner wall of the worktable, the worm penetrating the inner wall of the worktable and extending therethrough, a rotating handle fixedly connected to the front of the worm, limit teeth formed on the outer wall of the worm, a clearance groove formed on the outer wall of the worm, a limit ring rotatably connected to the outer wall of the worm, a limit block fixedly connected to the outer wall of the limit ring, the outer wall of the limit block contacting the outer wall of the limit teeth, a second connecting rod fixedly connected to the outer wall of the limit ring, a limit handle fixedly connected to the end of the worktable away from the limit ring, and a worm rotatably connected to the inner wall of the limit handle.

[0006] With the above technical solution, by pulling the limit handle outward, the limit handle pulls the connecting rod two, and the connecting rod two pulls the limit ring, so that the limit ring slides along the clearance groove. At the same time, the limit ring drives the limit block to engage with the outer wall of the limit tooth.

[0007] As a further improvement to the above solution, a rotating rod is fixedly connected to the bottom of the fixed base, a support platform is rotatably connected to the outer wall of the rotating rod, a drive motor is fixedly connected to the top of the inner wall of the support platform, a motor rotating rod is fixedly connected to the output end of the drive motor, a transmission rack is meshed with the outer wall of the motor rotating rod, and the outer wall of the motor rotating rod is rotatably connected to the inner wall of the support platform.

[0008] As a further improvement to the above solution, a second rotating rod is meshed with the inner wall of the end of the transmission rack away from the motor rotating rod, the outer wall of the second rotating rod is rotatably connected to the inner wall of the support platform, and a meshing gear is fixedly connected to the outer wall of the second rotating rod.

[0009] As a further improvement to the above solution, the meshing gear is meshed with a drive shaft, the inner wall of the drive shaft is slidably connected to the outer wall of the rotating rod two, the outer wall of the rotating rod two is provided with a relief groove two, the top of the rotating rod two is provided with a limit groove, and the inner wall of the relief groove two is in contact with a limit block one.

[0010] As a further improvement to the above solution, the outer wall of the limiting block one is fixedly connected to the inner wall of the transmission shaft, the outer wall of the limiting block one is in contact with the inner wall of the limiting groove, the inner wall of the transmission shaft is fixedly connected to the limiting block two, and the outer wall of the rotating rod is provided with an avoidance groove three.

[0011] As a further improvement to the above solution, a limiting groove 2 is provided at the bottom of the rotating rod, the outer wall of the limiting block 2 contacts the inner wall of the clearance groove 3, the outer wall of the limiting block 2 contacts the inner wall of the limiting groove 2, and a meshing gear 2 is fixedly connected to the outer wall of the rotating rod, the outer wall of the meshing gear 2 contacts the outer wall of the transmission shaft.

[0012] As a further improvement to the above solution, three limiting blocks are provided, and the three limiting blocks are evenly arranged around the center of the rotating rod. Three limiting grooves are provided, and the three limiting grooves are evenly arranged around the center of the rotating rod.

[0013] With the above technical solution, when the worktable needs to be rotated, the drive motor is operated, the output end of the drive motor rotates the motor rotating rod, the motor rotating rod meshes with the transmission rack, the transmission rack meshes with the rotating rod two, the rotating rod two rotates and meshes with the gear, the meshing gear meshes with the transmission shaft, the transmission shaft drives the limiting block two, the limiting block two is stuck inside the limiting groove two, thereby causing the limiting block two to drive the rotating rod to rotate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention allows for easy operation and quick locking of the worm gear during machining. After the angle is adjusted, pulling the limit handle outward will pull the connecting rod two, which in turn pulls the limit ring, causing it to slide along the clearance groove. Simultaneously, the limit ring causes the limit block to engage with the outer wall of the limit tooth, preventing the worm gear from rotating during machining.

[0016] This invention achieves worktable rotation adjustment by operating a drive motor when the worktable needs to be rotated. The drive motor output rotates a motor rotating rod, which meshes with a transmission rack. The transmission rack meshes with a second rotating rod, which in turn meshes with a gear. The gear meshes with a transmission shaft, which drives a second limiting block. The second limiting block is locked inside a second limiting groove, thereby causing the second limiting block to rotate the rotating rod. The rotating rod then rotates the fixed seat, which in turn rotates the connecting rod, which in turn rotates the worktable. This allows for quick adaptation to tool processing operations at different angles, avoiding the need for multiple adjustments and re-clamping. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting rod structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the workbench of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the support platform of this utility model;

[0021] Figure 5 This is a schematic diagram of the transmission shaft structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the transmission shaft of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Workbench; 2. Connecting rod; 3. Fixed seat; 4. Worm gear; 5. Worm; 6. Rotating handle; 7. Limiting tooth; 8. Clearance groove; 9. Limiting ring; 10. Limiting block; 11. Connecting rod two; 12. Limiting handle; 13. Support platform; 14. Rotating rod; 15. Drive motor; 16. Motor rotating rod; 17. Transmission rack; 18. Rotating rod two; 19. Meshing gear; 20. Transmission shaft; 21. Clearance groove two; 22. Limiting groove; 23. Limiting block one; 24. Limiting block two; 25. Clearance groove three; 26. Limiting groove two; 27. Meshing gear two. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-6This embodiment discloses an angle-adjustable CNC machine tool worktable, including a worktable 1. A connecting rod 2 is fixedly connected to the bottom of the worktable 1. A fixed seat 3 is rotatably connected to the outer wall of the connecting rod 2. A worm gear 4 is fixedly connected to the top of the fixed seat 3. A worm 5 is meshed with the worm gear 4. The outer wall of the worm 5 is rotatably connected to the inner wall of the worktable 1. The worm 5 penetrates the inner wall of the worktable 1 and extends. A rotating handle 6 is fixedly connected to the front of the worm 5. Limiting teeth 7 are formed on the outer wall of the worm 5. A clearance groove 8 is formed on the outer wall of the worm 5. A limiting ring 9 is rotatably connected to the outer wall of the limiting ring 9. A limiting block 10 is fixedly connected to the outer wall of the limiting ring 9. The outer wall of the limiting block 10 contacts the outer wall of the limiting teeth 7. A connecting rod 11 is fixedly connected to the outer wall of the limiting ring 9. A limiting handle 12 is fixedly connected to the end of the worktable 1 away from the limiting ring 9. The worm 5 is rotatably connected to the inner wall of the limiting handle 12.

[0028] A rotating rod 14 is fixedly connected to the bottom of the fixed base 3. A support platform 13 is rotatably connected to the outer wall of the rotating rod 14. A drive motor 15 is fixedly connected to the top of the inner wall of the support platform 13. A motor rotating rod 16 is fixedly connected to the output end of the drive motor 15. A transmission rack 17 is meshed with the outer wall of the motor rotating rod 16. The outer wall of the motor rotating rod 16 is rotatably connected to the inner wall of the support platform 13.

[0029] A rotating rod 18 is meshed with the inner wall of the end of the transmission rack 17 away from the motor rotating rod 16. The outer wall of the rotating rod 18 is rotatably connected to the inner wall of the support platform 13. A meshing gear 19 is fixedly connected to the outer wall of the rotating rod 18.

[0030] The meshing gear 19 is meshed with the drive shaft 20. The inner wall of the drive shaft 20 is slidably connected to the outer wall of the rotating rod 2 18. The outer wall of the rotating rod 2 18 is provided with a relief groove 21. The top of the rotating rod 2 18 is provided with a limit groove 22. The inner wall of the relief groove 21 is in contact with a limit block 23.

[0031] The outer wall of the limiting block 1 23 is fixedly connected to the inner wall of the transmission shaft 20. The outer wall of the limiting block 1 23 is in contact with the inner wall of the limiting groove 22. The inner wall of the transmission shaft 20 is fixedly connected to the limiting block 24. The outer wall of the rotating rod 14 is provided with the clearance groove 3 25.

[0032] The bottom of the rotating rod 14 has a limiting groove 26. The outer wall of the limiting block 24 contacts the inner wall of the clearance groove 3 25. The outer wall of the limiting block 24 contacts the inner wall of the limiting groove 26. The outer wall of the rotating rod 14 is fixedly connected to the meshing gear 27. The outer wall of the meshing gear 27 contacts the outer wall of the transmission shaft 20.

[0033] There are three limit blocks 24, which are evenly arranged around the center of the rotating rod 14. There are three limit grooves 26, which are evenly arranged around the center of the rotating rod 14.

[0034] The implementation principle of an angle-adjustable CNC machine tool worktable in this embodiment is as follows: When it is necessary to adjust the angle of the worktable 1, the limit handle 12 is pushed inward, the limit handle 12 pushes the connecting rod 11, the connecting rod 11 pushes the limit ring 9, the limit ring 9 drives the limit block 10, so that the outer wall of the limit block 10 disengages from the outer wall of the limit tooth 7. Then, the rotating handle 6 is rotated, the rotating handle 6 rotates the worm 5, the worm 5 meshes with the worm wheel 4, so that the worm 5 drives the worktable 1 to move along the worm wheel 4. At the same time, the worktable 1 drives the connecting rod 2 to rotate inside the fixed seat 3, thereby realizing the angle adjustment. After the angle adjustment is completed, pull the limit handle 12 outward. The limit handle 12 pulls the connecting rod 11, which in turn pulls the limit ring 9, causing the limit ring 9 to slide along the clearance groove 8. At the same time, the limit ring 9 drives the limit block 10 to engage with the outer wall of the limit tooth 7, preventing the worm gear 5 from rotating during the machining process on the worktable 1. This locking device is simple to operate and the locking method is quick. When it is necessary to rotate the worktable 1, the drive motor 15 is operated. The output end of the drive motor 15 rotates the motor rotating rod 16. The motor rotating rod 16 meshes with the transmission rack 17, which in turn meshes with the rotating rod 18. 18 rotates the meshing gear 19, which meshes with the transmission shaft 20. The transmission shaft 20 drives the second limiting block 24, which is locked inside the second limiting groove 26. This causes the second limiting block 24 to drive the rotating rod 14 to rotate, which in turn drives the fixed seat 3 to rotate. The fixed seat 3 rotates the connecting rod 2, which in turn rotates the worktable 1. This allows for the rotational adjustment of the worktable 1, enabling it to quickly adapt to the processing of tools at different angles and avoiding the problems of multiple adjustments and re-clamping. When the worktable 1 needs to be reversed, the second rotating rod 18 rotates in the opposite direction, simultaneously driving the meshing gear. 19. The meshing gear 19 pushes the transmission shaft 20 upward. The transmission shaft 20 drives the limiting block 1 23 to disengage from the clearance groove 21 and enter the interior of the transmission shaft 20. At the same time, the transmission shaft 20 drives the limiting block 24 to disengage from the limiting groove 26 and enter the clearance groove 3 25. Then, the top of the transmission shaft 20 meshes with the meshing gear 27, thereby causing the rotating rod 2 18 to rotate the limiting block 1 23. The limiting block 1 23 rotates the transmission shaft 20, and the transmission shaft 20 meshes with the meshing gear 27. The meshing gear 27 rotates the rotating rod 14, and the rotating rod 14 rotates the fixed seat 3, thereby realizing the reverse rotation of the equipment and increasing the flexibility of the equipment.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An angle-adjustable numerical control machine tool table, characterized by, Including the workbench (1), the workbench (1) bottom fixedly connected with connecting rod (2), the connecting rod (2) outer wall rotationally connected with fixed seat (3), the fixed seat (3) top fixedly connected with worm gear (4), the worm gear (4) meshing connection has worm (5), the worm (5) outer wall rotationally connected in the workbench (1) inner wall, the worm (5) passes through the workbench (1) inner wall and extends, the worm (5) front fixedly connected with rotating handle (6), the worm (5) outer wall is provided with limit tooth (7), the worm (5) outer wall is provided with the avoidance slot (8), the worm (5) outer wall rotationally connected with limit ring (9), the limit ring (9) outer wall fixedly connected with limit block (10), the limit block (10) outer wall contact is arranged in the limit tooth (7) outer wall, the limit ring (9) outer wall fixedly connected with connecting rod two (11), the workbench (1) is away from the limit ring (9) one end fixedly connected with limit handle (12), the limit handle (12) inner wall rotationally connected with worm (5).

2. An angle adjustable numerical control machine tool table according to claim 1, characterized in that: The fixed seat (3) bottom fixedly connected with rotating rod (14), the rotating rod (14) outer wall rotationally connected with support table (13), the support table (13) inner wall top fixedly connected with drive motor (15), the drive motor (15) output fixedly connected with motor rotating rod (16), the motor rotating rod (16) outer wall meshing connection has transmission rack (17), the motor rotating rod (16) outer wall rotationally connected in the support table (13) inner wall.

3. An angle adjustable CNC machine table as claimed in claim 2, characterized in that: The transmission rack (17) is away from the motor rotating rod (16) one end inner wall meshing connection has rotating rod two (18), the rotating rod two (18) outer wall rotationally connected in the support table (13) inner wall, the rotating rod two (18) outer wall fixedly connected with meshing gear (19).

4. An angle adjustable CNC machine table as claimed in claim 3, characterized in that: The meshing gear (19) meshing connection has transmission shaft (20), the transmission shaft (20) inner wall slidingly connected in the rotating rod two (18) outer wall, the rotating rod two (18) outer wall is provided with avoidance slot two (21), the rotating rod two (18) top is provided with limit slot (22), the avoidance slot two (21) inner wall contact is arranged with limit block one (23).

5. An angle adjustable CNC machine table as claimed in claim 4, characterized in that: The limit block one (23) outer wall fixedly connected in the transmission shaft (20) inner wall, the limit block one (23) outer wall contact is arranged in the limit slot (22) inner wall, the transmission shaft (20) inner wall fixedly connected with limit block two (24), the rotating rod (14) outer wall is provided with avoidance slot three (25).

6. An angle adjustable CNC machine table as claimed in claim 5, characterized in that: The rotating rod (14) bottom is provided with limit slot two (26), the limit block two (24) outer wall contact is arranged in the avoidance slot three (25) inner wall, the limit block two (24) outer wall contact is arranged in the limit slot two (26) inner wall, the rotating rod (14) outer wall fixedly connected with meshing gear two (27), the meshing gear two (27) outer wall contact is arranged in the transmission shaft (20) outer wall.

7. An angle adjustable CNC machine table as claimed in claim 6, characterized in that: The second limiting block (24) is provided with three, three second limiting grooves (26) are evenly arranged with the center of the rotating rod (14).