A brake device for large-scale numerical control vertical lathe
By adopting a disc-type and stacked friction pad design in the braking device of a large CNC vertical lathe, combined with pneumatic and hydraulic drives, and setting up a heat dissipation space component, the problems of severe friction pad wear and untimely heat dissipation are solved, achieving low wear and efficient heat dissipation of the friction pads.
Patent Information
- Application Number
- CN202522415547.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-14
AI Technical Summary
When the braking device of a large circular worktable is braking at high speed, the friction pads wear out severely and heat dissipation is not timely, resulting in the inability to dissipate high temperatures quickly.
It adopts a design of disc-type friction plates and stacked friction plates, combined with pneumatic and hydraulic brake components, and is installed through axial space slot transmission. A heat dissipation space component is set between the friction plates, and heat dissipation is achieved by the airflow of the rotating worktable.
It effectively reduces the wear of the friction plates, shortens the cooling time, improves the heat dissipation efficiency of the friction plates, and reduces the heat accumulation of the friction plates.
Smart Images
Figure CN224679950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of braking devices for large circular worktables, specifically a braking device for large CNC vertical lathes. Background Technology
[0002] The CNC system of the large circular worktable brake device reduces the motor current 0.5 seconds in advance, causing the worktable speed to drop from 300 r / min to 100 r / min, and then triggers the friction plate brake to reduce wear. Soft braking control: The braking pressure is adjusted by a proportional solenoid valve (e.g., gradually increasing from 0.5 MPa to 1.5 MPa) to avoid impact vibration. The main circuit (electromagnetic drive) and the backup circuit (mechanical spring energy storage) work independently. When the main circuit fails, the backup circuit automatically starts (response time ≤ 0.1 seconds). Wear compensation mechanism: After the friction plate wears, the hydraulic piston automatically compensates for the stroke (compensation accuracy ±0.05 mm) to maintain a constant braking force.
[0003] The existing braking devices for large circular worktables use friction pads for braking. However, the large circular worktable still rotates at high speed, and the friction pads are in high-speed motion. When braking, this causes severe wear on the friction pads. The high temperature generated by the friction pads during high-speed braking can only be dissipated by the airflow from the rotating worktable. This results in a long cooling time for the friction pads and inadequate heat dissipation. Utility Model Content
[0004] The purpose of this utility model is to provide a braking device for a large CNC vertical lathe to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A braking device for a large CNC vertical lathe includes a large circular worktable, an axial space groove, disc-shaped friction pads, and a braking assembly. The large circular worktable has an axial space groove inside. Disc-shaped friction pads are installed at the transmission points on the axial space groove. Disc-shaped friction pads are also installed at the mounting points on the braking assembly. The device also includes... The spindle brake assembly is mounted on the axial space slot; A heat dissipation space component is disposed on the disc-shaped friction plate; The disc-shaped friction plate is fixedly connected to a superimposed friction plate, the transmission part at the top of the axial space groove is provided with a mounting bracket, the mounting part on the mounting bracket is provided with a mounting frame, the fixed part on the mounting frame is connected to a pneumatic cylinder, and the pneumatic drive part on the pneumatic cylinder is equipped with a brake lever.
[0006] As described above, the braking device for a large CNC vertical lathe includes a disc-type friction plate and a superimposed friction plate, which are installed inside the large circular worktable via an axial spatial groove.
[0007] As described above, the large CNC vertical lathe brake device includes a pneumatic cylinder and a brake lever that are pneumatically clipped onto the mounting bracket.
[0008] The braking device for a large CNC vertical lathe as described above: the spindle brake assembly includes a hydraulic cylinder fixed inside an axial space groove, a sliding rod is installed at the drive point of the hydraulic cylinder, and an arc-shaped friction plate assembly is connected to the fixed point of the sliding rod.
[0009] As described above, the braking device for a large CNC vertical lathe: the arc-shaped friction pad assembly and the sliding rod are hydraulically driven by a hydraulic cylinder to snap into the axial space groove.
[0010] The braking device for a large CNC vertical lathe as described above: the heat dissipation space assembly includes a fixed plate fixedly connected inside a disc-shaped friction pad, a support rod is provided at the fixed position on the fixed plate, and a friction pad assembly is connected to the support position on the support rod.
[0011] As described above, the brake device for a large CNC vertical lathe includes a support rod and a fixing plate that are fixedly connected to the stacked friction plates via a friction plate assembly.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the arc-shaped friction plate assembly is hydraulically driven by a sliding rod and a hydraulic cylinder. The arc-shaped friction plate assembly is hydraulically snapped into the inside of a large circular worktable, which can snap and brake the transmission shaft in the large circular worktable. The arc-shaped friction plate assembly can wrap around the transmission shaft in the large circular worktable, reducing the operating speed of the disc-type friction plate and the stacked friction plate in the large circular worktable. The disc-type friction plate and the stacked friction plate can be snapped into the disc-type friction plate and the stacked friction plate by passing through the brake rod on the pneumatic cylinder through the inside of the mounting bracket. When braking, the friction plates that can slow down can be braked, thereby reducing the wear of the friction plates.
[0013] The friction plate assembly and fixing plate are fixed on the stacked friction plates and disc-type friction plates. The friction plate assembly and fixing plate can maintain a certain heat dissipation space between the stacked friction plates and disc-type friction plates. The heat generated by the stacked friction plates and disc-type friction plates due to braking is evaporated through the space between the stacked friction plates and disc-type friction plates. Combined with the airflow cooling of the rotating worktable, the cooling time of the stacked friction plates and disc-type friction plates is shortened, which is conducive to timely heat dissipation and circulation of the stacked friction plates and disc-type friction plates. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main shaft brake assembly of this utility model; Figure 3 This is a schematic diagram of the heat dissipation space component of this utility model.
[0015] In the diagram: 1. Large circular worktable; 2. Axial space groove; 3. Disc-type friction plate; 4. Stacked friction plates; 5. Mounting bracket; 6. Pneumatic cylinder; 7. Brake lever; 8. Mounting bracket; 9. Spindle brake box; 10. Hydraulic cylinder; 11. Sliding rod; 12. Arc-shaped friction plate assembly; 13. Support rod; 14. Friction plate assembly; 15. Fixing plate. Detailed Implementation
[0016] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0017] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0018] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail, in order to highlight the main points of this application.
[0019] Please see Figures 1-3 A braking device for a large CNC vertical lathe is proposed, comprising a large circular worktable 1, an axial space groove 2, a disc-type friction pad 3, and a braking assembly.
[0020] The large circular worktable 1 definitely has an axial space groove 2 inside. A disc-type friction plate 3 is installed at the transmission part on the axial space groove 2. A disc-type friction plate 3 is installed at the mounting part on the brake assembly. The main spindle brake assembly is installed on the axial space groove 2. The heat dissipation space assembly is set on the disc-type friction plate 3. An axial space groove 2 is opened on a large circular worktable 1, so that the disc-shaped friction plate 3 is installed on the large circular worktable 1 through the axial space groove 2, and the large circular worktable 1 is driven by the CNC lathe transmission shaft. Among them, the fixed part of the disc-type friction plate 3 is connected to the superimposed friction plate 4, the transmission part at the top of the axial space groove 2 is provided with the mounting bracket 8, the mounting part of the mounting bracket 8 is provided with the mounting frame 5, the fixed part of the mounting frame 5 is connected to the pneumatic cylinder 6, and the pneumatic drive part of the pneumatic cylinder 6 is equipped with the brake lever 7.
[0021] In this embodiment, the mounting bracket 8 is fixedly connected to the top of the axial space groove 2. The pneumatic cylinder 6 and the brake lever 7 are installed on the mounting bracket 8. The pneumatic cylinder 6 is installed on the mounting bracket 8, and the brake lever 7 is pneumatically driven by the pneumatic cylinder 6 to snap onto the superimposed friction plate 4. The superimposed friction plate 4 is fixedly connected to the disc-type friction plate 3. The disc-type friction plate 3 and the superimposed friction plate 4 are installed inside the axial space groove 2 by a CNC lathe.
[0022] Preferably, the disc-type friction plate 3 and the superimposed friction plate 4 are installed inside the large circular worktable 1 through the axial space groove 2. The disc-type friction plate 3 and the superimposed friction plate 4 rotate under the drive of the large circular worktable 1. The large circular worktable 1 achieves stability through braking torque within the speed range of 50~300 r / min.
[0023] Preferably, the pneumatic cylinder 6 and the brake lever 7 are pneumatically latched onto the mounting bracket 8. The pneumatic cylinder 6 is mounted on the mounting bracket 8, so that the brake lever 7 on the pneumatic cylinder 6 passes through the interior of the mounting bracket 8 and is braked by the pneumatic power of the pneumatic cylinder 6 onto the disc-type friction plate 3 and the stacked friction plate 4.
[0024] Please refer to Figure 1 and Figure 2 In this embodiment, the spindle brake assembly includes a hydraulic cylinder 10 fixed inside the axial space groove 2, a sliding rod 11 is installed at the drive end of the hydraulic cylinder 10, and an arc-shaped friction plate group 12 is connected to the fixed end of the sliding rod 11.
[0025] The hydraulic cylinder 10 is fixedly connected to both sides inside the axial space groove 2, so that the sliding rod 11 is slidably installed on the hydraulic cylinder 10 and hydraulically driven. The arc-shaped friction plate group 12 slides through the sliding rod 11 and the hydraulic cylinder 10.
[0026] Preferably, the arc-shaped friction plate assembly 12 and the sliding rod 11 are hydraulically driven and latched inside the axial space groove 2 by the hydraulic cylinder 10. When the disc-shaped friction plate 3 and the stacked friction plate 4 rotate under the drive of the large circular worktable 1, the large circular worktable 1 is driven by a braking device, which allows the disc-shaped friction plate 3 and the stacked friction plate 4 to rotate within the speed range of 50~300 r / min. The arc-shaped friction plate assembly 12 is hydraulically driven by the sliding rod 11 and the hydraulic cylinder 10, and the arc-shaped friction plate assembly 12 is hydraulically latched inside the large circular worktable 2. Inside the worktable 1, the drive shaft in the large circular worktable 1 can be latched and braked. The arc-shaped friction plate group 12 can wrap around the drive shaft in the large circular worktable 1, reducing the operating speed of the disc-type friction plate 3 and the stacked friction plate 4 in the large circular worktable 1. The disc-type friction plate 3 and the stacked friction plate 4 pass through the brake rod 7 on the pneumatic cylinder 6 through the inside of the mounting bracket 8 and can be latched onto the disc-type friction plate 3 and the stacked friction plate 4. When braking, the friction plates can slow down and perform braking, reducing the wear of the friction plates.
[0027] Please refer to Figure 2 and Figure 3 In this embodiment, the heat dissipation space component includes a fixing plate 15 fixedly connected inside the disc-shaped friction plate 3. A support rod 13 is provided at the fixing point on the fixing plate 15, and a friction plate group 14 is connected to the support point on the support rod 13.
[0028] The fixing plate 15 is fixedly connected to the disc-shaped friction plate 3, so that the friction plate group 14 is fixed to the disc-shaped friction plate 3 by the support rod 13, and the superimposed friction plate 4 covers the friction plate group 14, and the friction plate group 14 and the superimposed friction plate 4 are fixed together.
[0029] Preferably, the support rod 13 and the fixing plate 15 are fixedly connected to the stacked friction plate 4 through the friction plate assembly 14. The stacked friction plate 4 and the disc-type friction plate 3 are fixed together by the support rod 13. The friction plate assembly 14 and the fixing plate 15 are fixed on the stacked friction plate 4 and the disc-type friction plate 3. The friction plate assembly 14 and the fixing plate 15 can maintain a certain heat dissipation space between the stacked friction plate 4 and the disc-type friction plate 3. The heat generated by the stacked friction plate 4 and the disc-type friction plate 3 due to braking is evaporated through the space between the stacked friction plate 4 and the disc-type friction plate 3. Combined with the heat dissipation of the rotating airflow of the worktable, the cooling time of the stacked friction plate 4 and the disc-type friction plate 3 is shortened, which is conducive to the timely heat dissipation and circulation of the stacked friction plate 4 and the disc-type friction plate 3.
[0030] As can be seen from the above, during use, the pneumatic cylinder 6 and the brake lever 7 are installed on the mounting bracket 8. The pneumatic cylinder 6 is installed on the mounting bracket 8, and the brake lever 7 is driven by the pneumatic cylinder 6 to snap onto the stacked friction plate 4. The stacked friction plate 4 is fixedly connected to the disc-type friction plate 3. The friction plate assembly 14 and the fixing plate 15 are fixed on the stacked friction plate 4 and the disc-type friction plate 3. The friction plate assembly 14 and the fixing plate 15 can maintain a certain heat dissipation space between the stacked friction plate 4 and the disc-type friction plate 3. The heat generated by the braking of the stacked friction plate 4 and the disc-type friction plate 3 is evaporated through the space between the stacked friction plate 4 and the disc-type friction plate 3.
[0031] The large circular worktable 1 is driven by a brake device, which allows the disc-type friction plate 3 and the stacked friction plate 4 to rotate within the range of 50~300 r / min. The arc-shaped friction plate group 12 is hydraulically driven by the sliding rod 11 and the hydraulic cylinder 10. The arc-shaped friction plate group 12 is hydraulically snapped into the inside of the large circular worktable 1, which can snap and brake the drive shaft in the large circular worktable 1. The arc-shaped friction plate group 12 can wrap around the drive shaft in the large circular worktable 1, reducing the operating speed of the disc-type friction plate 3 and the stacked friction plate 4 in the large circular worktable 1.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A braking device for a large CNC vertical lathe, comprising a large circular worktable (1), an axial space groove (2), a disc-type friction plate (3), and a braking assembly, wherein the large circular worktable (1) has an axial space groove (2) inside, a disc-type friction plate (3) is installed at the transmission part on the axial space groove (2), and a disc-type friction plate (3) is provided at the mounting part on the braking assembly, characterized in that: It also includes settings, The main spindle brake assembly is installed on the axial space slot (2); A heat dissipation space assembly is disposed on the disc-shaped friction plate (3); Among them, the fixed part of the disc-type friction plate (3) is connected to the superimposed friction plate (4), the transmission part at the top of the axial space groove (2) is provided with the mounting bracket (8), the mounting part of the mounting bracket (8) is provided with the mounting frame (5), the fixed part of the mounting frame (5) is connected to the pneumatic cylinder (6), and the pneumatic drive part of the pneumatic cylinder (6) is equipped with the brake rod (7).
2. The braking device for a large CNC vertical lathe according to claim 1, characterized in that, The disc-shaped friction plate (3) and the superimposed friction plate (4) are installed inside the large circular worktable (1) via an axial space groove (2).
3. The braking device for a large CNC vertical lathe according to claim 1, characterized in that, The pneumatic cylinder (6) and the brake lever (7) are pneumatically fastened to the mounting bracket (8).
4. A braking device for a large CNC vertical lathe according to claim 1, characterized in that, The spindle brake assembly includes a hydraulic cylinder (10) fixed inside the axial space groove (2), a sliding rod (11) is installed at the drive position of the hydraulic cylinder (10), and an arc-shaped friction plate group (12) is connected to the fixed position of the sliding rod (11).
5. A braking device for a large CNC vertical lathe according to claim 4, characterized in that, The arc-shaped friction plate group (12) and the sliding rod (11) are hydraulically driven by the hydraulic cylinder (10) to snap into the axial space groove (2).
6. A braking device for a large CNC vertical lathe according to claim 1, characterized in that, The heat dissipation space assembly includes a fixing plate (15) fixedly connected inside the disc-shaped friction plate (3), a support rod (13) is provided at the fixing point on the fixing plate (15), and a friction plate assembly (14) is connected to the support point on the support rod (13).
7. A braking device for a large CNC vertical lathe according to claim 6, characterized in that, The support rod (13) and the fixing plate (15) are fixedly connected to the superimposed friction plate (4) by the friction plate group (14).