Automobile brake pad stamping die
By using the combination of limiting pads and limiting strips, the problem of displacement caused by lack of positioning during the stamping process of the lower die is solved, thus achieving stable die closing and protection of the support structure, and extending the service life of the die.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HUAXIN FRICTION MATERIALS CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
The existing automotive brake pad stamping die lacks a positioning structure for the lower die, which makes the lower die susceptible to impact and vibration during operation. When the lower die vibrates, it is prone to slight displacement, affecting the stability of the upper and lower die closing process. Furthermore, the displacement structure is easily damaged by impact and vibration.
The system employs a combination of limiting pads and limiting strips, and uses a motor-driven bevel gear and lead screw system to position and support the rotating table, avoiding the effects of impact and vibration, dispersing impact force, and protecting the support structure.
It improves the stability of mold closing, extends the service life of the mold, and avoids damage to the supporting structure.
Smart Images
Figure CN224542838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive mold technology, and in particular to an automotive brake pad stamping mold. Background Technology
[0002] Automotive brake pads are friction materials fixed on brake drums or brake discs that rotate with the wheels. During the production and processing of automotive brake pads, corresponding stamping dies are used to stamp the blanks of automotive brake pads.
[0003] For example, patent number CN218015146U discloses a continuous stamping die for automotive brake pads. When stamping a workpiece, the lower die located directly below the upper die is in the processing position, while the other two lower dies are in the loading and unloading positions, respectively. The operator or robotic arm places the workpiece inside the lower die in the loading position. After the lower die in the processing position has finished stamping the workpiece, a stepper motor drives the rotating seat to rotate 120°, causing the lower die in the loading position to move to the processing position, and the lower die in the processing position to move to the unloading position. The operator or robotic arm then removes the workpiece. By setting multiple lower dies and a rotating seat, the lower die and upper die in the processing position can continuously stamp the workpiece, effectively improving the processing efficiency of the workpiece.
[0004] For example, patent number CN210877073U discloses a stamping die for automotive brake pads with a limiting structure. It includes a base, two side plates symmetrically fixed at both ends of the base, a top block fixedly installed between the two side plates, and the top block located above the base. A placement groove is opened in the top block, and a cylinder is fixedly installed inside the placement groove. The output end of the cylinder is connected to a stamping rod, and the bottom end of the stamping rod passes through the top block and extends to the bottom of the top block, and a stamping die head is fixedly installed thereon. A motor is fixedly installed at one end of the base, and the other end of the motor output shaft passes through the base and extends into the base. The other end of the output shaft is connected to a lead screw, and the other end of the lead screw is rotatably connected to the inner wall of the base. This utility model facilitates limiting, and the limiting distance is adjustable. It is easy to operate and has a high degree of automation.
[0005] However, although existing automotive brake pad stamping dies use displacement control structures and sensors to move and limit the lower die to be directly below the upper die, the lack of a positioning structure for the lower die makes it susceptible to impact and vibration during operation, causing slight displacement and affecting the stability of the upper and lower dies when they are closed. At the same time, its displacement structure is also easily damaged by the impact and vibration generated during the stamping process. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides an automotive brake pad stamping die, which solves the problem that the lack of a positioning structure for the lower die in automotive brake pad stamping dies leads to the lower die being easily affected by impact and vibration during operation, resulting in slight displacement and affecting the stability of the upper and lower dies when they are closed. At the same time, its displacement structure is also easily damaged by the impact and vibration generated during the stamping process.
[0007] The technical solution of this utility model is as follows: a stamping die for automotive brake pads, including a base, a rotating table at the upper end of the base, a lower die on the surface of the rotating table, a stamping seat above the rotating table, an upper die at the lower end of the stamping seat, a limit strip on the side of the lower end of the rotating table, a cavity at the lower end of the base, a fixed bracket inside the cavity, a motor at the lower end of the fixed bracket, a bevel gear one at the upper end of the fixed bracket, a bevel gear two on the side of the bevel gear one, a connecting shaft on the outer side of the fixed bracket, a limit frame fixedly installed on the outer side of the base, a lead screw inside the limit frame, and a limit pad on the outer side of the lead screw.
[0008] Preferably, a support frame is fixedly installed on the upper end of the base, a drive component for driving the rotating table to rotate is provided at the lower end of the support frame, a hydraulic component for driving the pressing seat to rise and fall is provided at the upper end of the support frame, the rotating table and the outer side of the lower end of the support frame are rotatably connected by bearings, and multiple support rollers are arranged in a circular array at the lower end of the rotating table.
[0009] Preferably, the limiting strips are provided in three sets, each set containing two parallel limiting strips, and the three sets of limiting strips are distributed in a circular array along the lower surface of the rotating table, and the limiting strips are fixedly connected to the lower end face of the rotating table.
[0010] Preferably, the lower end of the motor and the fixed bracket are fixedly connected, the output end of the motor extends to the upper end of the fixed bracket and is fixedly connected to the first bevel gear, and the upper end of the first bevel gear is rotatably connected to the base.
[0011] Preferably, the fixed bracket and the inner side of the cavity are fixedly connected by a support plate, the connecting shaft is through the support plate and is rotatably connected to the support plate by a bearing, and the bevel gear is fixedly connected to the connecting shaft.
[0012] Preferably, the second bevel gear, the connecting shaft, and the limiting frame are arranged in a circular array. The second bevel gear and the first bevel gear mesh with each other. The end of the connecting shaft away from the second bevel gear is rotatably connected to the side of the base through a bearing, and is fixedly connected to the end of the lead screw near the base. The other end of the lead screw is rotatably connected to the limiting frame.
[0013] Preferably, the limiting pad has an L-shaped structure design, with the front and rear sides of the lower end of the limiting pad slidingly connected to the inner side of the limiting frame, the lead screw and the limiting pad being threadedly connected, the upper end of the limiting pad extending between the base and the rotating table, and slidingly fitting with the upper end surface of the base and the lower end surface of the rotating table, and the limiting strip slidingly fitting with both sides of the limiting pad.
[0014] The beneficial effects of this utility model are:
[0015] 1. In this automotive brake pad stamping die, when the rotating table completes one deflection, the upper end of the control limit pad is inserted between the base and the rotating table, and cooperates with the limit strip to achieve the positioning of the rotating table, so as to avoid the rotating table from deflecting due to impact and vibration during the stamping process, thereby improving the stability of mold closing;
[0016] 2. During the stamping process, the automotive brake pad stamping die uses multiple limiting pads to disperse the impact force on the rotating table, thereby protecting the rotating connection and sliding support structure, preventing excessive stress on the support rollers and bearing connections, and improving the overall service life of the stamping die. Attached Figure Description
[0017] Figure 1 The diagram shown is a three-dimensional structural representation of the automotive brake pad stamping die of this utility model. Figure 1 ;
[0018] Figure 2 The diagram shown is a three-dimensional structural representation of the automotive brake pad stamping die of this utility model. Figure 2 ;
[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the rotating platform of this utility model.
[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the base of this utility model.
[0021] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the base of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 1. Base; 101. Support frame; 2. Rotating table; 201. Lower die; 202. Support roller; 3. Stamping seat; 301. Upper die; 4. Limiting strip; 5. Cavity; 6. Fixed bracket; 601. Support plate; 7. Motor; 8. Bevel gear one; 9. Bevel gear two; 10. Connecting shaft; 11. Limiting frame; 12. Lead screw; 13. Limiting pad. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 This utility model provides an embodiment: an automotive brake pad stamping die, including a base 1, a rotating platform 2 at the upper end of the base 1, a lower die 201 on the surface of the rotating platform 2, a stamping seat 3 above the rotating platform 2, an upper die 301 at the lower end of the stamping seat 3, a limit strip 4 on the side of the lower end of the rotating platform 2, a cavity 5 at the lower end of the base 1, a fixed bracket 6 inside the cavity 5, a motor 7 at the lower end of the fixed bracket 6, a bevel gear 8 at the upper end of the fixed bracket 6, a bevel gear 9 on the side of the bevel gear 8, a connecting shaft 10 on the outer side of the fixed bracket 6, a limit frame 11 fixedly installed on the outer side of the base 1, a lead screw 12 inside the limit frame 11, and a limit pad 13 outside the lead screw 12.
[0025] Please see Figures 1-4 In this embodiment, a support frame 101 is fixedly installed on the upper end of the base 1. A drive assembly for driving the rotating table 2 to rotate is provided at the lower end of the support frame 101. A hydraulic assembly for driving the stamping seat 3 to rise and fall is provided at the upper end of the support frame 101. The outer sides of the lower end of the rotating table 2 and the support frame 101 are rotatably connected by bearings. Multiple support rollers 202 are arranged in a circular array at the lower end of the rotating table 2. The drive assembly is controlled by an external controller to drive the rotating table 2 to rotate intermittently, thereby driving multiple lower dies 201 to move one by one to the bottom of the stamping seat 3 to close with the upper die 301, thus realizing the continuous stamping of automotive brake pads.
[0026] Please see Figures 2-5In this embodiment, three sets of limiting bars 4 are provided, each set containing two parallel limiting bars 4. The three sets of limiting bars 4 are arranged in a circular array along the lower surface of the rotating platform 2. The limiting bars 4 are fixedly connected to the lower end face of the rotating platform 2. The motor 7 is fixedly connected to the lower end of the fixed bracket 6. The output end of the motor 7 extends to the upper end of the fixed bracket 6 and is fixedly connected to the first bevel gear 8. The upper end of the first bevel gear 8 is rotatably connected to the base 1. The fixed bracket 6 and the inner side of the cavity 5 are fixedly connected through the support plate 601. The connecting shaft 10 is arranged through the support plate 601 and is rotatably connected to the support plate 601 through a bearing. The second bevel gear 9 is fixedly connected to the connecting shaft 10. The second bevel gear 9, the connecting shaft 10, and the limiting frame 11 are all arranged in a circular array. The second bevel gear 9 and the first bevel gear 8 mesh with each other. The end of the connecting shaft 10 away from the second bevel gear 9 is rotatably connected to the side of the base 1 through a bearing and is fixedly connected to the end of the lead screw 12 near the base 1. The other end of the lead screw 12 is connected to the limiting frame. 11. Rotary connection: The limiting pad 13 has an L-shaped structure design. The front and rear sides of the lower end of the limiting pad 13 are slidably connected to the inner side of the limiting frame 11. The lead screw 12 is threadedly connected to the limiting pad 13. The upper end of the limiting pad 13 extends between the base 1 and the rotating table 2, and slides against the upper end surface of the base 1 and the lower end surface of the rotating table 2. The limiting strip 4 slides against both sides of the limiting pad 13. When the rotating table 2 completes one deflection, the motor 7 is controlled by the external controller to drive the cone. The rotation of gear 8 causes multiple bevel gears 9 to rotate, which in turn drives the connecting shaft 10 and the lead screw 12 to rotate. This causes multiple limiting pads 13 to slide simultaneously along the inner side of the limiting frame 11. The upper ends of the multiple limiting pads 13 are inserted between the base 1 and the rotating table 2, and cooperate with the limiting strip 4 to achieve positioning and support of the rotating table 2. The intermittent operation of the motor 7, the intermittent operation of the rotating table 2 drive assembly, and the adjustment and control of the deflection angle of the rotating table 2 are all completed through the cooperation of an external controller and sensors.
[0027] During operation, an external controller controls the drive assembly to intermittently rotate the rotary table 2, causing multiple lower dies 201 to move one by one to the bottom of the stamping seat 3 to close with the upper die 301, thus achieving continuous stamping of automotive brake pads. When the rotary table 2 completes one deflection, the external controller controls the motor 7 to drive the bevel gear 8 to rotate, causing multiple bevel gears 9 to rotate, which in turn drives the connecting shaft 10 and the lead screw 12 to rotate. This causes multiple limiting pads 13 to slide simultaneously along the inner side of the limiting frame 11. The upper ends of the multiple limiting pads 13 are inserted between the base 1 and the rotary table 2, and cooperate with the limiting strip 4 to achieve the control of the rotary table 2. Positioning prevents the rotary table 2 from deflecting due to impact and vibration during the stamping process, thereby improving the stability of mold closing. At the same time, multiple limit pads 13 support the rotary table 2 and disperse the impact force on the rotary table 2, thereby protecting the rotating connection and sliding support structure and preventing excessive stress on the support roller 202 and bearing connection, which could cause damage. When the rotary table 2 needs to deflect again, the motor 7 is controlled to rotate in the opposite direction by the external controller, so that the multiple limit pads 13 slide away from the rotary table 2, release the limiting cooperation with the limit strip 4, and allow the rotary table 2 to continue rotating for the next round of stamping.
[0028] Compared to the prior art, which directly uses a displacement control structure and sensors to move the lower die and limit it to directly below the upper die, this application, while retaining the sensor control mechanism, adds a limiting pad 13 and a limiting strip 4 to create a limiting structure. This allows the lower die to move to a predetermined position, and by controlling the upper end of the limiting pad 13 to insert between the base 1 and the rotating platform 2, and cooperating with the limiting strip 4, the rotating platform 2 is stably positioned. This prevents the rotating platform 2 from deflecting due to impact and vibration during stamping, thus improving the stability of the die closing. Compared to the prior art (patent number CN218015146U), which directly uses a rotating platform supported on the base by a sliding support structure to move and support the lower die, this application, by inserting the limiting pad 13 between the base 1 and the rotating platform 2 during stamping, disperses the impact force on the rotating platform 2, thereby protecting the rotating connection and sliding support structure. This prevents excessive stress on the support roller 202 and the bearing connection, thus improving the overall service life of the stamping die.
[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0030] 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 these 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 stamping die for automotive brake pads, comprising a base (1), a rotating platform (2) disposed at the upper end of the base (1), a lower die (201) disposed on the surface of the rotating platform (2), a stamping seat (3) disposed above the rotating platform (2), and an upper die (301) disposed at the lower end of the stamping seat (3), characterized in that: A limit strip (4) is provided on the side of the lower end of the rotating table (2). A cavity (5) is provided at the lower end of the base (1). A fixed bracket (6) is provided on the inner side of the cavity (5). A motor (7) is provided at the lower end of the fixed bracket (6). A bevel gear one (8) is provided at the upper end of the fixed bracket (6). A bevel gear two (9) is provided on the side of the bevel gear one (8). A connecting shaft (10) is provided on the outer side of the fixed bracket (6). A limit frame (11) is fixedly installed on the outer side of the base (1). A screw rod (12) is provided on the inner side of the limit frame (11). A limit pad (13) is provided on the outer side of the screw rod (12).
2. The automotive brake pad stamping die according to claim 1, characterized in that: A support frame (101) is fixedly installed on the upper end of the base (1). A drive assembly for driving the rotating table (2) to rotate is provided at the lower end of the support frame (101). A hydraulic assembly for driving the stamping seat (3) to rise and fall is provided at the upper end of the support frame (101). The outer sides of the lower end of the rotating table (2) and the support frame (101) are rotatably connected by bearings. Multiple support rollers (202) are arranged in a ring array at the lower end of the rotating table (2).
3. The automotive brake pad stamping die according to claim 1, characterized in that: The limiting strips (4) are provided in three sets, each set containing two parallel limiting strips (4). The three sets of limiting strips (4) are arranged in a ring array along the lower surface of the rotating table (2). The limiting strips (4) and the lower end face of the rotating table (2) are fixedly connected.
4. The automotive brake pad stamping die according to claim 1, characterized in that: The lower end of the motor (7) and the fixed bracket (6) are fixedly connected. The output end of the motor (7) extends to the upper end of the fixed bracket (6) and is fixedly connected to the bevel gear (8). The upper end of the bevel gear (8) is rotatably connected to the base (1).
5. The automotive brake pad stamping die according to claim 1, characterized in that: The inner side of the fixed bracket (6) and the cavity (5) is fixedly connected by the support plate (601). The connecting shaft (10) is through the support plate (601) and is rotatably connected to the support plate (601) by the bearing. The bevel gear (9) is fixedly connected to the connecting shaft (10).
6. The automotive brake pad stamping die according to claim 1, characterized in that: The second bevel gear (9), the connecting shaft (10), and the limiting frame (11) are arranged in a circular array. The second bevel gear (9) and the first bevel gear (8) mesh with each other. The end of the connecting shaft (10) away from the second bevel gear (9) is rotatably connected to the side of the base (1) through a bearing, and is fixedly connected to the end of the lead screw (12) near the base (1). The other end of the lead screw (12) is rotatably connected to the limiting frame (11).
7. The automotive brake pad stamping die according to claim 1, characterized in that: The limiting pad (13) has an L-shaped structure design. The front and rear sides of the lower end of the limiting pad (13) are slidably connected to the inner side of the limiting frame (11). The screw (12) is threadedly connected to the limiting pad (13). The upper end of the limiting pad (13) extends to the space between the base (1) and the rotating table (2), and slides against the upper surface of the base (1) and the lower surface of the rotating table (2). The limiting strip (4) slides against the sides of the limiting pad (13).