Brake locking mechanism of precise cam rotary table

Abstract

The utility model relates to the technical field of workpiece processing machinery, and discloses a brake locking mechanism of a precise cam rotary table, which comprises a mounting frame, a rotary table body rotatably connected to the middle of the mounting frame, a worm gear fixedly connected to the outside of the rotary table body, and a dismounting structure arranged inside the mounting frame, the rotating shaft is rotationally connected to one side of the mounting frame, a worm is arranged on one side of the rotating shaft, square grooves are formed in the two ends of the worm, a threaded column is rotationally connected to the other side of the mounting frame, a threaded pipe is in threaded connection with the outside of the threaded column, a connecting shaft is rotationally connected to one end of the threaded pipe, and square blocks are fixedly connected to the connecting shaft and one end of the rotating shaft. According to the utility model, the worm is convenient to maintain and replace in time, the phenomenon that the worm is abraded due to long-time meshing with the worm gear, so that the meshing tightness of the worm is reduced is reduced, the worm is convenient to disassemble in time, replacement is carried out, and the difficulty in replacing the worm is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing machinery, in particular to a brake locking mechanism for a precision cam turntable. Background Art

[0002] A precision cam turntable is a high-precision and high-stability rotary motion mechanism, which is widely used in various mechanical systems, especially in automated equipment and precision machinery. The rotary motion is achieved through the relative motion between a cam and a follower roller element, and a brake locking mechanism is used to ensure that the turntable can stop accurately and stably when needed. The design of the brake locking mechanism ensures that the turntable can be stably held in a specified position when stopped, without being affected by external interference and vibration.

[0003] After retrieval, the brake locking mechanism of the cam turntable disclosed in the Chinese patent application with the application number CN201721442794.2 is for the turntable to pause at a required position during the working process. The existing pause device has a relatively complex structure, inconvenient operation, and high production cost. Therefore, it can withstand a large torque in the braking state, has high-precision positioning, and can be positioned at any angle.

[0004] During the use of the above brake locking mechanism, it is convenient to perform high-precision positioning on the cam turntable. When using a worm and a worm gear to lock the cam turntable, the worm will generate friction with the worm gear due to long-term rotation, resulting in damage to the worm due to friction, causing the inner groove spacing of the worm to expand, making it difficult to mesh with the worm gear. And the worm is usually fixed inside the cam turntable mechanism, which is not convenient to disassemble and replace the worm, easily leading to failures when the cam turntable is in use, thus making it inconvenient to use the cam turntable. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a brake locking mechanism for a precision cam turntable is proposed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A brake locking mechanism for a precision cam turntable, including a mounting frame, a turntable body is rotatably connected to the middle of the mounting frame, a worm gear is fixedly connected to the outside of the turntable body, and a disassembly and assembly structure is arranged inside the mounting frame;

[0007] The disassembly and assembly structure includes a rotating shaft, which is rotatably connected to one side of the installation frame. A worm is provided on one side of the rotating shaft, and square grooves are formed at both ends of the worm. A threaded column is rotatably connected to the other side of the installation frame, and a threaded tube is threadedly connected to the outside of the threaded column. One end of the threaded tube is rotatably connected to a connecting shaft. Blocks are fixedly connected to one end of each of the connecting shaft and the rotating shaft. A limiting rod is fixedly connected to the inside of the installation frame, and a connecting sleeve is slidably connected to the outside of the limiting rod. The connecting sleeve is fixedly connected to one side of the threaded tube. A large gear is fixedly connected to the outside of the rotating shaft, and a motor is fixedly installed inside the installation frame. A small gear is fixedly connected to the output end of the motor, and the small gear is meshed with the large gear. The worm gear is meshed with the worm.

[0008] As a further description of the above technical solution:

[0009] A lubrication component is provided on the upper surface of the installation frame. The lubrication component includes a liquid storage tank, which is fixedly connected to the upper surface of the installation frame.

[0010] As a further description of the above technical solution:

[0011] A connecting pipe is fixedly connected to one side of the liquid storage tank, and a plurality of liquid leakage grooves are formed on the lower surface of the connecting pipe.

[0012] As a further description of the above technical solution:

[0013] A sponge pad is provided on the lower surface of the connecting pipe, and a connecting plate is fixedly connected to one side of the connecting pipe.

[0014] As a further description of the above technical solution:

[0015] A soft brush is provided below the connecting plate, and two bolts are fixedly connected to the upper surface of the soft brush.

[0016] As a further description of the above technical solution:

[0017] The bolts are threadedly connected with nuts, and a liquid leakage box is fixedly connected to the lower surface of the installation frame.

[0018] As a further description of the above technical solution:

[0019] A drain pipe is fixedly connected to the lower surface of the liquid leakage box, and a knob is fixedly connected to one end of the threaded column through a shaft rod.

[0020] The utility model has the following beneficial effects:

[0021] 1. By providing a disassembly and assembly structure, the worm in the internal brake locking mechanism of the cam turntable of the present utility model can be conveniently repaired and replaced in a timely manner. This reduces the wear of the worm due to long-term meshing with the worm wheel, thereby preventing the loosening of the fastening degree of the worm meshing. It facilitates the timely disassembly of the worm for replacement, reducing the difficulty of replacing the worm and thus facilitating the use of the cam turntable.

[0022] 2. Through the setting of the lubrication component, the present utility model has the function of facilitating the timely addition of lubricating oil to the meshing part of the internal worm and worm wheel of the cam turntable. This improves the smoothness of the meshing of the worm and worm wheel, reduces the increase in friction caused by insufficient lubrication, and prevents wear of both the worm and worm wheel. It also reduces the maintenance cost and extends the service life of the worm and worm wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure proposed by the present utility model;

[0024] Figure 2 is a schematic diagram of the structure of the liquid storage tank proposed by the present utility model;

[0025] Figure 3 is a partial structural diagram of the connection part of the liquid leakage box proposed by the present utility model;

[0026] Figure 4 is a schematic diagram of the block structure proposed by the present utility model;

[0027] Figure 5 is a schematic diagram of the square groove structure proposed by the present utility model;

[0028] Figure 6 is a schematic diagram of the threaded pipe structure proposed by the present utility model;

[0029] Figure 7 is a schematic diagram of the liquid leakage groove structure proposed by the present utility model;

[0030] Figure 8 is a partial structural diagram of the connection part of the soft brush proposed by the present utility model.

[0031] LEGEND DESCRIPTION:

[0032] 1. Installation frame; 2. Turntable body; 3. Worm wheel; 4. Rotating shaft; 5. Block; 6. Worm; 7. Square groove; 8. Threaded column; 9. Threaded pipe; 10. Connecting shaft; 11. Limiting rod; 12. Connecting sleeve; 13. Large gear; 14. Motor; 15. Small gear; 16. Liquid storage tank; 17. Connecting pipe; 18. Liquid leakage groove; 19. Sponge pad; 20. Connecting plate; 21. Soft brush; 22. Bolt; 23. Nut; 24. Liquid leakage box; 25. Drain pipe; 26. Operation knob. Detailed implementation mode

[0033] 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 work fall within the protection scope of the present invention.

[0034] As shown in the attached Figure 1-8 figure, an embodiment provided by the present invention: a brake locking mechanism for a precision cam turntable, including an installation frame 1, a turntable body 2 is rotatably connected to the middle of the installation frame 1, a worm gear 3 is fixedly connected to the outside of the turntable body 2, and a disassembly and assembly structure is arranged inside the installation frame 1;

[0035] The disassembly and assembly structure includes a rotating shaft 4, the rotating shaft 4 is rotatably connected to one side of the installation frame 1, a worm 6 is arranged on one side of the rotating shaft 4, square grooves 7 are opened at both ends of the worm 6, a threaded column 8 is rotatably connected to the other side of the installation frame 1, a threaded tube 9 is threadedly connected to the outside of the threaded column 8, one end of the threaded tube 9 is rotatably connected to a connecting shaft 10, blocks 5 are fixedly connected to one end of the connecting shaft 10 and the rotating shaft 4 respectively, a limiting rod 11 is fixedly connected to the inside of the installation frame 1, a connecting sleeve 12 is slidably connected to the outside of the limiting rod 11, the connecting sleeve 12 is fixedly connected to one side of the threaded tube 9, a large gear 13 is fixedly connected to the outside of the rotating shaft 4, a motor 14 is fixedly installed inside the installation frame 1, a small gear 15 is fixedly connected to the output end of the motor 14, the small gear 15 is meshed with the large gear 13, the worm gear 3 is meshed with the worm 6, the square groove 7 facilitates the engagement of the block 5, thereby facilitating the installation of the worm 6, and the limiting rod 11 and the connecting sleeve 12 are beneficial to improving the stability of the threaded tube 9 when moving.

[0036] As shown in the attached Figure 1 figure, a lubrication component is arranged on the upper surface of the installation frame 1, and the lubrication component includes a liquid storage tank 16, the liquid storage tank 16 is fixedly connected to the upper surface of the installation frame 1, a connecting pipe 17 is fixedly connected to one side of the liquid storage tank 16, and the liquid storage tank 16 and the connecting pipe 17 are used for circulating lubricating liquid.

[0037] As shown in the attached Figure 7 figure, a plurality of liquid leakage grooves 18 are opened on the lower surface of the connecting pipe 17 for dripping lubricating oil.

[0038] A sponge pad 19 is provided on the lower surface of the connecting pipe 17. A connecting plate 20 is fixedly connected to one side of the connecting pipe 17. A soft brush 21 is provided below the connecting plate 20. Two bolts 22 are fixedly connected to the upper surface of the soft brush 21. A nut 23 is threadedly connected to the outer thread of the bolt 22. The sponge pad 19 facilitates buffering the dripping of the lubricating fluid. The soft brush 21 facilitates brushing the outside of the worm 6 when the worm 6 rotates. The connection between the bolt 22 and the nut 23 facilitates the disassembly of the soft brush 21.

[0039] As shown in the Figure 3 attachment, a liquid leakage box 24 is fixedly connected to the lower surface of the installation frame 1. A liquid discharge pipe 25 is fixedly connected to the lower surface of the liquid leakage box 24. One end of the threaded column 8 is fixedly connected to a knob 26 through a shaft rod. The liquid discharge pipe 25 facilitates the discharge of excess lubricating fluid.

[0040] Working principle: When the cam turntable rotates, the motor 14 is turned on, causing the motor 14 to drive the rotation of the small gear 15. Through the meshing of the small gear 15 and the large gear 13, it is convenient to drive the rotation of the large gear 13, thereby indirectly driving the rotation of the worm 6, causing the worm 6 to drive the worm wheel 3 to rotate, driving the turntable body 2 to rotate. When locking is required, the motor 14 is turned off, which is beneficial to stopping the rotation of the worm 6 and facilitating the locking of the turntable body 2;

[0041] When the worm 6 needs to be replaced, the knob 26 is turned. Under the action of the shaft rod, the threaded column 8 is driven to rotate, thereby facilitating the threaded rotation of the threaded column 8 inside the threaded pipe 9, which is beneficial to driving the connecting shaft 10 by the threaded pipe 9 to drive the corresponding square block 5 to move towards the position close to the installation frame 1. When the square block 5 moves out of the inside of one side square groove 7, it is convenient to release the limit on one side of the worm 6, and then hold the worm 6 to disengage the other square block 5 from the square groove 7, facilitating the removal of the worm 6, facilitating the disassembly of the worm 6, and facilitating replacement;

[0042] When lubricating oil needs to be applied to the meshing part of the worm wheel 3 and the worm 6, first convey the lubricating oil into the internal of the liquid storage tank 16. Under the action of the connecting pipe 17, it is convenient for the lubricating oil to flow to one end of the connecting pipe 17, and then leak into the sponge pad 19 through the liquid leakage groove 18, causing the sponge pad 19 to be filled with lubricating oil. Then, through the phenomenon of the lubricating oil dripping from the sponge pad 19, it is convenient for the lubricating oil to drip onto the meshing part of the worm wheel 3 and the worm 6. When the worm 6 rotates, it is convenient to come into contact with the soft brush 21, so that the soft brush 21 smears the lubricating oil on the rotating worm 6, thereby facilitating the lubrication of the worm 6. The excess lubricating oil will drip into the internal of the liquid leakage box 24 through the meshing part and be discharged by the liquid discharge pipe 25.

[0043] It should be noted that the motor used in this solution has an electromagnetic locking structure built in.

[0044] Among them, in the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A brake locking mechanism for a precision cam turntable, comprising a mounting frame (1), characterized in that: The middle part of the installation frame (1) is rotatably connected to a turntable body (2), the outside of the turntable body (2) is fixedly connected to a worm gear (3), and a disassembly structure is provided inside the installation frame (1); The disassembly and assembly structure comprises a rotating shaft (4), the rotating shaft (4) is rotatably connected to one side of the installation frame (1), a worm (6) is arranged on one side of the rotating shaft (4), both ends of the worm (6) are provided with square grooves (7), the other side of the installation frame (1) is rotatably connected to a threaded column (8), the external thread of the threaded column (8) is connected to a threaded tube (9), one end of the threaded tube (9) is rotatably connected to a connecting shaft (10), the connecting shaft (10) and one end of the rotating shaft (4) are both fixedly connected to a block (5), the installation frame (1) ) is fixedly connected to a limit rod (11) inside, the limit rod (11) is slidably connected to a connecting sleeve (12) outside, the connecting sleeve (12) is fixedly connected to one side of the threaded tube (9), the rotating shaft (4) is fixedly connected to a large gear (13) outside, a motor (14) is fixedly installed inside the mounting frame (1), the output end of the motor (14) is fixedly connected to a small gear (15), the small gear (15) and the large gear (13) are meshingly connected, and the worm wheel (3) and the worm (6) are meshingly connected.

2. The brake locking mechanism of the precision cam turntable according to claim 1, characterized in that: The upper surface of the installation frame (1) is provided with a lubrication assembly, the lubrication assembly comprising a liquid storage tank (16), and the liquid storage tank (16) is fixedly connected to the upper surface of the installation frame (1).

3. The brake locking mechanism of the precision cam turntable according to claim 2, characterized in that: A connecting pipe (17) is fixedly connected to one side of the liquid storage box (16), and a plurality of liquid leakage grooves (18) are provided on the lower surface of the connecting pipe (17).

4. The brake locking mechanism of the precision cam turntable according to claim 3 is characterized in that: A sponge pad (19) is provided on the lower surface of the connecting pipe (17), and a connecting plate (20) is fixedly connected to one side of the connecting pipe (17).

5. The brake locking mechanism of the precision cam turntable according to claim 4, characterized in that: A soft brush (21) is provided below the connecting plate (20), and two bolts (22) are fixedly connected to the upper surface of the soft brush (21).

6. The brake locking mechanism of the precision cam turntable according to claim 5, characterized in that: The outer thread of the bolt (22) is connected to a nut (23), and the lower surface of the installation frame (1) is fixedly connected to a liquid leakage box (24).

7. The brake locking mechanism of the precision cam turntable according to claim 6, characterized in that: A liquid discharge pipe (25) is fixedly connected to the lower surface of the liquid leakage box (24), and a knob (26) is fixedly connected to one end of the threaded column (8) via a shaft rod.

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