Brake mechanism of numerical control heavy-duty rotary table

Abstract

The utility model relates to heavy duty rotary table field of numerical control, and disclose the brake mechanism of heavy duty rotary table of numerical control, including bottom box, the inside of bottom box is installed with brake assembly on one side, the outside of bottom box is installed with adjusting assembly, the inside of bottom box is installed with worm wheel and worm respectively, the outer end of worm is installed with motor, brake assembly includes slide and two guide rods, two the guide rod fixed mounting is in the inside of bottom box on one side, the slide movable mounting is in the outside of two guide rods, the one side of slide is fixedly installed with handle on the front end, the outside of worm is fixedly installed with the rotation tooth on one end, the front of slide is fixedly installed with the click, the outside of two guide rods is all sleeved with first spring on the back end. Through the slide and click, it is convenient to automatic brake and separate, avoid worm under the inertia effect and keep rotating, through the rotation rod, can carry out the fine adjustment to rotary table, improve numerical control machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of CNC heavy-duty rotary tables, specifically to the braking mechanism of CNC heavy-duty rotary tables. Background Technology

[0002] CNC heavy-duty rotary tables are key equipment used to realize circular feed motion, expand the machining range of machine tools, and improve machining efficiency and accuracy. They are widely used in the field of heavy machinery processing.

[0003] The publication number CN222588789U discloses a gear brake mechanism for a CNC rotary table. The gear brake mechanism for the CNC rotary table includes: a worktable, a motor installed on the left side of the worktable, a small gear fixedly connected to the drive end of the motor, and a large gear meshing on the small gear.

[0004] The aforementioned braking mechanism can improve the response speed of the equipment and extend the service life of the braking equipment. However, during the start-up and shutdown process, manual braking is required to stop the rotation. It is not convenient to automatically disengage and brake during operation and stop. Furthermore, during high-precision machining, the specified rotation angle of the turntable needs to be adjusted, which is not convenient for manual fine-tuning. Utility Model Content

[0005] The purpose of this utility model is to provide a braking mechanism for a CNC heavy-duty rotary table to solve the technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The braking mechanism of a CNC heavy-duty rotary table includes a base box. A braking assembly is installed inside the base box on one side, and an adjustment assembly is installed on the outside of the base box. A worm gear and a worm are movably installed inside the base box, and a motor is installed at the outer end of the worm. The braking assembly includes a slide and two guide rods. The two guide rods are fixedly installed inside the base box on one side, and the slide is movably installed outside the two guide rods. A handle is fixedly installed on one side of the slide near the front end. A rotating tooth is fixedly installed on one end of the worm. A locking tooth is fixedly installed on the front of the slide. A first spring is sleeved on the rear end of each of the two guide rods. An electromagnetic core is installed inside the base box near the rear end, and an iron block is fixedly installed at the rear end of the slide.

[0007] Preferably, the worm gear is meshed with the worm wheel outside the worm wheel, and the top of the worm wheel is used to mount the turntable.

[0008] Preferably, the carriage is slidably positioned outside the two guide rods, and the handle is slidably positioned through the front of the base box.

[0009] Preferably, the locking teeth and rotating teeth are meshed with each other, and the electromagnetic core and the motor operate synchronously.

[0010] Preferably, the adjusting assembly includes a rotating rod, which is movably mounted on the other side of the base box. A transmission block is fixedly mounted on the inner end of the rotating rod, and a transmission groove is opened at the other end of the worm gear. A positioning plate is fixedly mounted on the outside of the rotating rod. A guide plate is movably mounted on the inner side of the positioning plate and sleeved on the outside of the rotating rod. A second spring is sleeved on the outside of the rotating rod, and a rocker plate is mounted on the outer end of the rotating rod.

[0011] Preferably, the cross-sections of the transmission block and the transmission groove are both hexagonal, and the transmission block and the transmission groove are interlocked.

[0012] Preferably, the guide plate is movably connected to the outside of the rotating rod, and the guide plate is slidably positioned inside the base box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1) This braking mechanism, by setting a braking component, allows the electromagnetic core and the iron block to magnetically attract or disengage, causing the carriage to slide. Through the meshing of the locking teeth and the rotating teeth, the locking teeth can automatically disengage when driving and automatically engage when stopping, facilitating automatic braking and disengagement, and preventing the worm gear from continuously rotating under inertia.

[0014] 2) This braking mechanism, by setting an adjustment component, allows the handle to drive the slide to slide, and the transmission block to be engaged in the transmission groove, which can make fine adjustments to the turntable and improve the CNC machining accuracy. The rotating rod slides outward under the action of the second spring, so that the transmission block is disengaged from the transmission groove, and the worm gear is prevented from driving the rocker to rotate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the braking mechanism of the CNC heavy-duty rotary table according to an embodiment of the present utility model. Figure 2 This is a schematic diagram of the internal structure of the brake assembly in an embodiment of this utility model; Figure 3 This is a side view of the brake assembly in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the adjustment component in an embodiment of this utility model.

[0016] In the diagram: 1. Base box; 2. Brake assembly; 3. Adjustment assembly; 4. Worm gear; 5. Worm; 6. Motor; 7. Carriage; 8. Guide rod; 9. Handle; 10. Rotating gear; 11. Clamping gear; 12. First spring; 13. Electromagnetic core; 14. Iron block; 15. Rotating rod; 16. Transmission block; 17. Transmission groove; 18. Positioning plate; 19. Guide plate; 20. Second spring; 21. Rocking plate. Detailed Implementation

[0017] 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. Example

[0018] Combination Figures 1-4 The braking mechanism of the CNC heavy-duty rotary table includes a base box 1. A brake assembly 2 is installed inside the base box 1 on one side. An adjustment assembly 3 is installed on the outside of the base box 1. A worm gear 4 and a worm 5 are movably installed inside the base box 1. A motor 6 is installed at the outer end of the worm 5.

[0019] See Figure 2 and Figure 3 Furthermore, the brake assembly 2 includes a slide 7 and two guide rods 8. The two guide rods 8 are fixedly installed inside the base box 1 on one side. The slide 7 is movably installed outside the two guide rods 8. A handle 9 is fixedly installed on one side of the slide 7 near the front end. A rotating tooth 10 is fixedly installed on the outside of the worm gear 5 near one end. A locking tooth 11 is fixedly installed on the front of the slide 7. A first spring 12 is sleeved on the outside of the two guide rods 8 near the rear end. An electromagnetic core 13 is installed inside the base box 1 near the rear end. An iron block 14 is fixedly installed on the rear end of the slide 7.

[0020] The worm 5 is located outside the worm wheel 4 and is meshed with it. The top of the worm wheel 4 is used to mount the turntable. The worm 5 drives the worm wheel 4 to rotate, causing the turntable to rotate and be automatically fixed.

[0021] The slide 7 is located outside the two guide rods 8 and is slidably positioned. The handle 9 is slidably positioned through the front of the base box 1. The slide 7 is guided to slide by the guide rods 8. By pressing the handle 9, the slide 7 is passively slid backward.

[0022] The locking gear 11 and the rotating gear 10 are meshed with each other. The electromagnetic core 13 and the motor 6 operate synchronously. The locking gear 11 and the rotating gear 10 are meshed and fixed, so that the worm 5 stops rotating when the motor 6 stops running.

[0023] Specifically, when the motor 6 is running, the coil of the electromagnetic core 13 is energized to generate a magnetic core, which is magnetically attracted to the iron block 14, thereby causing the slide 7 to slide backward and disengage the locking tooth 11 from the rotating tooth 10 so as to drive the turntable. When the motor 6 stops running, the electromagnetic core 13 is de-energized and loses its magnetism, and the slide 7 slides forward under the action of the first spring 12, so that the locking tooth 11 engages with the rotating tooth 10 for quick fixation. Example

[0024] See Figure 4Furthermore, based on Embodiment 1, the adjusting component 3 includes a rotating rod 15, which is movably mounted on the other side of the base box 1. A transmission block 16 is fixedly mounted on the inner end of the rotating rod 15, and a transmission groove 17 is opened on the other end of the worm gear 5. A positioning plate 18 is fixedly mounted on the outside of the rotating rod 15. A guide plate 19 is movably mounted on the inner side of the positioning plate 18 and sleeved on the outside of the rotating rod 15. A second spring 20 is sleeved on the outside of the rotating rod 15, and a rocker plate 21 is mounted on the outer end of the rotating rod 15.

[0025] Both the transmission block 16 and the transmission groove 17 have hexagonal cross-sections. The transmission block 16 and the transmission groove 17 are snapped together. The transmission block 16 is snapped into the transmission groove 17. The rotation angle of the turntable is finely adjusted by rotating the worm gear 5 through the rotating rod 15.

[0026] The guide plate 19 is movably connected to the outside of the rotating rod 15. The guide plate 19 is slidably located inside the base box 1. The rotating rod 15 drives the positioning plate 18 to rotate outside the guide plate 19. The guide plate 19 prevents the second spring 20 from rotating.

[0027] Specifically, by pressing the handle 9, the locking tooth 11 is disengaged from the rotating tooth 10. The rocker plate 21 is pressed inward and rotated, causing the transmission block 16 to engage with the transmission groove 17. This drives the worm gear 5 to rotate and make fine adjustments to the turntable. After adjustment, the rotating rod 15 slides outward under the action of the second spring 20, causing the transmission block 16 to disengage from the transmission groove 17, thus preventing the worm gear 5 from driving the rocker plate 21 to rotate.

[0028] In actual operation, motor 6 drives worm 5 to rotate, which in turn drives worm wheel 4 to rotate, thereby driving the turntable on top of worm wheel 4 to rotate. When rotating and braking, the motor 6 and the electromagnetic core 13 run and de-energize synchronously. When the motor 6 is running, the coil of the electromagnetic core 13 is energized to generate a magnetic core, which is magnetically attracted and fixed to the iron block 14. This causes the slide 7 to slide backward, disengaging the locking tooth 11 from the rotating tooth 10, so as to drive the turntable. When the motor 6 stops running, the electromagnetic core 13 is de-energized and loses its magnetism. The slide 7 slides forward under the action of the first spring 12, causing the locking tooth 11 to engage with the rotating tooth 10 for quick fixation, preventing the worm gear 5 from rotating continuously under inertia. During adjustment, by pressing the handle 9, the slide 7 slides backward to disengage the locking tooth 11 from the rotating tooth 10. At the same time, the rocker plate 21 is pressed inward and rotated to engage the transmission block 16 into the transmission groove 17. The rotating rod 15 drives the worm gear 5 to rotate and make fine adjustments to the turntable. After adjustment, the rotating rod 15 slides outward under the action of the second spring 20 to disengage the transmission block 16 from the transmission groove 17, thus preventing the worm gear 5 from driving the rocker plate 21 to rotate.

[0029] 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 the 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 braking mechanism for a CNC heavy-duty rotary table, comprising a base box (1), characterized in that: A brake assembly (2) is installed on one side inside the base box (1), an adjustment assembly (3) is installed on the outside of the base box (1), a worm gear (4) and a worm (5) are movably installed inside the base box (1), and a motor (6) is installed at the outer end of the worm (5). The brake assembly (2) includes a slide (7) and two guide rods (8). The two guide rods (8) are fixedly installed inside the base box (1) on one side. The slide (7) is movably installed outside the two guide rods (8). A handle (9) is fixedly installed on one side of the slide (7) near the front end. A rotating tooth (10) is fixedly installed on one end of the worm gear (5). A locking tooth (11) is fixedly installed on the front of the slide (7). A first spring (12) is sleeved on the rear end of the two guide rods (8). An electromagnetic core (13) is installed inside the base box (1) near the rear end. An iron block (14) is fixedly installed on the rear end of the slide (7).

2. The braking mechanism of the CNC heavy-duty rotary table according to claim 1, characterized in that: The worm (5) is located outside the worm wheel (4) and is meshed with it. The top of the worm wheel (4) is used to mount the turntable.

3. The braking mechanism of the CNC heavy-duty rotary table according to claim 1, characterized in that: The slide (7) is located outside the two guide rods (8) and is slidably positioned, while the handle (9) is slidably positioned through the front of the base box (1).

4. The braking mechanism of the CNC heavy-duty rotary table according to claim 1, characterized in that: The locking teeth (11) and rotating teeth (10) mesh with each other, and the electromagnetic core (13) and the motor (6) operate synchronously.

5. The braking mechanism of the CNC heavy-duty rotary table according to claim 1, characterized in that: The adjustment assembly (3) includes a rotating rod (15), which is movably installed on the other side of the base box (1). A transmission block (16) is fixedly installed on the inner end of the rotating rod (15). A transmission groove (17) is opened on the other end of the worm gear (5). A positioning plate (18) is fixedly installed on the outside of the rotating rod (15). A guide plate (19) is movably installed on the inner side of the positioning plate (18) and sleeved on the outside of the rotating rod (15). A second spring (20) is sleeved on the outside of the rotating rod (15). A rocker plate (21) is installed on the outer end of the rotating rod (15).

6. The braking mechanism of the CNC heavy-duty rotary table according to claim 5, characterized in that: The cross-sections of the transmission block (16) and the transmission groove (17) are both hexagonal, and the transmission block (16) and the transmission groove (17) are interlocked.

7. The braking mechanism of the CNC heavy-duty rotary table according to claim 5, characterized in that: The guide plate (19) is sleeved on the outside of the rotating rod (15) and is movably connected. The guide plate (19) is located inside the bottom box (1) and is slidably arranged.

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