Tool clamp convenient for repeated positioning and used for automotive brake
By designing a tooling fixture for automotive brakes using a rotary disk and worm gear mechanism, the problems of difficult repeatable positioning and surface damage of traditional fixtures were solved. It achieves bidirectional self-centering clamping and height adjustment, thereby improving the finished product qualification rate and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGSHENG AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional tooling fixtures are difficult to achieve bidirectional self-centering clamping of inner and outer contours, making it difficult to repeatedly position irregularly shaped brakes. Furthermore, rigid jaws are prone to forming indentations and scratches on the workpiece surface, affecting the finished product qualification rate.
A tooling fixture for automotive brakes, including a clamping device and a lifting device, was designed. It adopts a rotary disk and worm gear mechanism to achieve bidirectional self-centering clamping, and uses rubber pads to avoid damage to the workpiece surface, and can adapt to the height adjustment of different workpieces.
It achieves bidirectional self-centering clamping of the workpiece, avoiding surface indentations and scratches, improving the finished product qualification rate, and shortening the workpiece adjustment time.
Smart Images
Figure CN224239326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool fixture technology, specifically to a tooling fixture for automobile brakes that facilitates repeated positioning. Background Technology
[0002] As a component of the automotive braking system, the brake disc, flange, and other parts of the automotive brake often require repeated positioning machining. Traditional tooling fixtures often suffer from the following problems: existing fixtures mostly adopt a unidirectional clamping structure, making it difficult to achieve bidirectional self-centering clamping of the inner and outer contours. This results in difficulties in repeatedly positioning irregularly shaped brakes, and rigid jaws are prone to leaving indentations and scratches on the workpiece surface, affecting the yield of finished products. In summary, to solve the above problems, meet the requirements of repeated positioning of tooling fixtures, protect the surface of the workpiece, and increase the yield, this utility model has emerged. Utility Model Content
[0003] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a tooling fixture for automotive brakes that facilitates repeated positioning, comprising: a base, a housing fixedly connected to the top of the base, a drive motor fixedly connected to the bottom of the base, a connecting rod fixedly connected to the output end of the drive motor, a lifting device provided on the top of the base, and a clamping device provided inside the base; the clamping device includes a rotating disk, a sliding rod slidably connected to the inner wall of the rotating disk, a slider fixedly connected to the top of the sliding rod, a clamping rod fixedly connected to the top of the slider, a rubber pad fixedly connected to the outer wall of the clamping rod, a connecting block fixedly connected to the bottom of the rotating disk, a connecting column fixedly connected to the top of the rotating disk, a bearing fixedly connected to the outer wall of the connecting column, a fixing block fixedly connected to the outer wall of the bearing, and a sliding disk fixedly connected to the top of the fixing block.
[0004] Preferably, the outer wall of the connecting rod is fixedly connected to the inner wall of the connecting block, the outer wall of the slider is slidably connected to the inner wall of the sliding disk, the outer wall of the rubber pad is slidably connected to the inner wall of the outer shell, and the connecting rod on the output end of the drive motor will drive the rotating disk of the top connecting block to rotate.
[0005] Preferably, the outer wall of the rotating disk is rotatably connected to the inner wall of the sliding disk, the inner wall of the sliding disk is slidably connected to the outer wall of the slide rod, and the outer wall of the sliding disk is fixedly connected to the outer wall of the base. The slider inside the sliding disk restricts the slide rod from sliding along the axis under the straight hole of the sliding disk. The sliding disk is fixed on the base, the rotating disk rotates inside the sliding disk, and the sliding disk does not rotate.
[0006] Preferably, the lifting device includes a fixed column, a worm gear rotatably connected to the inner wall of the fixed column, a threaded rod threadedly connected to the inner wall of the worm gear, a fixed platform fixedly connected to the top of the threaded rod, a worm engaging with the outer wall of the worm gear, and a circular handle fixedly connected to the outer wall of the worm. When it is necessary to adjust the clamping rod, the height of the fixed platform is adjusted by rotating the circular handle to make the clamping rod more secure.
[0007] Preferably, the bottom of the fixed column is fixedly connected to the top of the base, and the outer wall of the worm gear is rotatably connected to the inner wall of the housing. When the circular handle is rotated, the circular handle drives the worm gear to rotate, and the two ends of the worm gear rotate on the inner wall of the housing.
[0008] Preferably, the inner wall of the fixed platform is slidably connected to the outer wall of the rubber pad, and the outer wall of the threaded rod is slidably connected to the inner wall of the outer shell. When the height of the clamping rod needs to be adjusted, the height of the fixed platform can be adjusted by rotating the circular handle inside the lifting device.
[0009] The beneficial effects of this utility model are as follows:
[0010] 1. This utility model, by setting up a clamping device, when the automotive brake workpiece needs to be processed, uses a motor-driven rotating disk to drive the clamping rod to move inward and outward, realizing a bidirectional self-centering clamping structure, which facilitates repeated positioning of the workpiece. It can also adapt the clamping direction according to the inner and outer contour characteristics of the workpiece, meeting the coaxiality requirements in automotive brake processing. At the same time, a rubber pad is installed on the outer surface of the clamping rod, which provides uniform clamping force while effectively avoiding the workpiece surface indentation and scratches caused by rigid contact, thus extending the service life of the workpiece.
[0011] 2. This utility model, by setting up a lifting device, allows for the rotation of a worm gear by turning a circular handle when different automotive brake workpieces need to be processed. The worm gear drives a worm wheel, which in turn drives a threaded rod to rise. The threaded rod then drives the fixed platform to rise and fall. This allows for control of the vertical adjustment of the fixed platform, adapting to the height adjustment of various automotive brake workpieces. It also effectively allows for repeated positioning of the workpieces, shortening the adjustment time when changing workpieces. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the lifting device of this utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the clamping device of this utility model;
[0015] Figure 4This is an exploded view of the rotating disk of this utility model;
[0016] Figure 5 This is a schematic diagram of the connecting column of this utility model.
[0017] In the diagram: 1. Base; 2. Drive motor; 3. Lifting device; 4. Clamping device; 5. Rotary disk; 6. Slide rod; 7. Slider; 8. Sliding disk; 9. Rubber pad; 10. Housing; 11. Clamping rod; 12. Connecting rod; 13. Connecting block; 14. Connecting column; 15. Fixing block; 16. Bearing; 31. Fixing column; 32. Worm gear; 33. Threaded rod; 34. Worm; 35. Circular handle; 36. Fixed platform. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example
[0019] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a tooling fixture for automotive brakes that facilitates repeated positioning, comprising: a base 1, a housing 10 fixedly connected to the top of the base 1, a drive motor 2 fixedly connected to the bottom of the base 1, a connecting rod 12 fixedly connected to the output end of the drive motor 2, a lifting device 3 provided on the top of the base 1, and a clamping device 4 provided inside the base 1; the clamping device 4 includes a rotating disk 5, a sliding rod 6 slidably connected to the inner wall of the rotating disk 5, a slider 7 fixedly connected to the top of the slider 6, a clamping rod 11 fixedly connected to the top of the slider 7, a rubber pad 9 fixedly connected to the outer wall of the clamping rod 11, a connecting block 13 fixedly connected to the bottom of the rotating disk 5, a connecting column 14 fixedly connected to the top of the rotating disk 5, a bearing 16 fixedly connected to the outer wall of the connecting column 14, a fixing block 15 fixedly connected to the outer wall of the bearing 16, and a sliding disk 8 fixedly connected to the top of the fixing block 15.
[0020] The outer wall of the connecting rod 12 is fixedly connected to the inner wall of the connecting block 13, the outer wall of the slider 7 is slidably connected to the inner wall of the sliding disk 8, and the outer wall of the rubber pad 9 is slidably connected to the inner wall of the outer shell 10.
[0021] The outer wall of the rotating disk 5 is rotatably connected to the inner wall of the sliding disk 8, the inner wall of the sliding disk 8 is slidably connected to the outer wall of the slide rod 6, and the outer wall of the sliding disk 8 is fixedly connected to the outer wall of the base 1.
[0022] The lifting device 3 includes a fixed column 31, a worm gear 32 rotatably connected to the inner wall of the fixed column 31, a threaded rod 33 threadedly connected to the inner wall of the worm gear 32, a fixed platform 36 fixedly connected to the top of the threaded rod 33, a worm 34 meshingly connected to the outer wall of the worm gear 32, and a circular handle 35 fixedly connected to the outer wall of the worm 34.
[0023] The bottom of the fixed column 31 is fixedly connected to the top of the base 1, and the outer wall of the worm 34 is rotatably connected to the inner wall of the outer casing 10.
[0024] The inner wall of the fixed platform 36 is slidably connected to the outer wall of the rubber pad 9, and the outer wall of the threaded rod 33 is slidably connected to the inner wall of the outer casing 10.
[0025] Working principle:
[0026] When in use, the base 1 is fixed on the ground as the base of the whole equipment. Then, the car brake workpiece is placed on the fixed platform 36 on the lifting device 3. Then, the drive motor 2 is started, and the drive motor 2 will drive the clamping device 4 to perform self-centering clamping on the workpiece.
[0027] When different automotive brake workpieces are placed on the fixed platform 36 for clamping, the clamping direction of the workpiece is first confirmed, and then it is decided whether to place it inside or outside the clamping rod 11. Once the clamping direction is confirmed, the drive motor 2 is turned on. The connecting rod 12 on the output end of the drive motor 2 will drive the rotating disk 5 to rotate. During rotation, multiple sliding rods 6 set inside the rotating disk 5 will slide along the limiting holes inside the rotating disk 5. At this time, the slider 7 inside the sliding disk 8 at the top of the rotating disk 5 will restrict the sliding rods 6 from sliding axially under the straight hole of the sliding disk 8. The sliding disk 8 is fixed. Fixed on the base 1, a connecting post 14 is fixed between the sliding disk 8 and the rotating disk 5. The bottom of the connecting post 14 is fixedly connected to the rotating disk 5, and the top of the connecting post 14 is connected to the inner wall of the bearing 16. The outer wall of the bearing 16 is connected to the outer wall of the sliding disk 8. The rotating disk 5 rotates inside the sliding disk 8, while the sliding disk 8 does not rotate. When the slider 7 moves axially through the straight hole in the sliding disk 8, the top clamping rod 11 also follows the slider 7 to perform axial bidirectional clamping. The outer wall of the clamping rod 11 is provided with a rubber pad 9 to prevent indentation and scratches on the workpiece surface, making the workpiece clamped more securely.
[0028] When processing various automotive brake workpieces of different heights, and when adjusting the clamping rod 11 for shorter clamping, the height of the fixed platform 36 can be adjusted by rotating the circular handle 35 inside the lifting device 3, allowing for a more stable clamping of the clamping rod 11. When the circular handle 35 is rotated, it drives the worm gear 34 to rotate. The two ends of the worm gear 34 rotate on the inner wall of the outer casing 10, which in turn drives the worm wheel 32 to rotate. One end of the worm wheel 32 rotates on the inner wall of the fixed column 31, causing the threaded rod 33 inside the worm wheel 32 to rise. When the threaded rod 33 rises, the fixed platform 36 at the top also rises accordingly. This allows for control of the required length of the clamping rod 11, adapting to the height adjustment of various automotive brake workpieces, and effectively enabling repeated positioning of the workpiece, thus shortening the adjustment time for changing workpieces.
[0029] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A tooling fixture for automotive brakes that facilitates repeated positioning, characterized in that, include: The base (1) has a shell (10) fixedly connected to the top of the base (1), a drive motor (2) fixedly connected to the bottom of the base (1), a connecting rod (12) fixedly connected to the output end of the drive motor (2), a lifting device (3) is provided on the top of the base (1), and a clamping device (4) is provided inside the base (1). The clamping device (4) includes a rotating disk (5), a sliding rod (6) is slidably connected to the inner wall of the rotating disk (5), a slider (7) is fixedly connected to the top of the slider (6), a clamping rod (11) is fixedly connected to the top of the slider (7), a rubber pad (9) is fixedly connected to the outer wall of the clamping rod (11), a connecting block (13) is fixedly connected to the bottom of the rotating disk (5), a connecting column (14) is fixedly connected to the top of the rotating disk (5), a bearing (16) is fixedly connected to the outer wall of the connecting column (14), a fixing block (15) is fixedly connected to the outer wall of the bearing (16), and a sliding disk (8) is fixedly connected to the top of the fixing block (15).
2. The tooling fixture for automotive brakes that facilitates repeated positioning according to claim 1, characterized in that: The outer wall of the connecting rod (12) is fixedly connected to the inner wall of the connecting block (13), the outer wall of the slider (7) is slidably connected to the inner wall of the sliding disk (8), and the outer wall of the rubber pad (9) is slidably connected to the inner wall of the outer shell (10).
3. A tooling fixture for automotive brakes that facilitates repeated positioning according to claim 2, characterized in that: The outer wall of the rotating disk (5) is rotatably connected to the inner wall of the sliding disk (8), the inner wall of the sliding disk (8) is slidably connected to the outer wall of the slide rod (6), and the outer wall of the sliding disk (8) is fixedly connected to the outer wall of the base (1).
4. A tooling fixture for automotive brakes that facilitates repeated positioning according to claim 1, characterized in that: The lifting device (3) includes a fixed column (31), a worm gear (32) is rotatably connected to the inner wall of the fixed column (31), a threaded rod (33) is threadedly connected to the inner wall of the worm gear (32), a fixed platform (36) is fixedly connected to the top of the threaded rod (33), a worm (34) is meshed with the outer wall of the worm gear (32), and a circular handle (35) is fixedly connected to the outer wall of the worm (34).
5. A tooling fixture for automotive brakes that facilitates repeated positioning according to claim 4, characterized in that: The bottom of the fixed column (31) is fixedly connected to the top of the base (1), and the outer wall of the worm (34) is rotatably connected to the inner wall of the outer shell (10).
6. A tooling fixture for automotive brakes that facilitates repeated positioning according to claim 4, characterized in that: The inner wall of the fixed platform (36) is slidably connected to the outer wall of the rubber pad (9), and the outer wall of the threaded rod (33) is slidably connected to the inner wall of the outer shell (10).