Brake seat milling clamp

Abstract

The utility model relates to an auxiliary tool for milling, and discloses a brake seat milling clamp, which comprises a base plate, and a positioning component, two abutting components and a fixing component which are arranged on the base plate, the positioning component is an L-shaped frame and is fixed on the base plate, one corner of a brake seat is clamped on the inner side of the positioning component, the number of the abutting components is two, and the fixing component is fixed on the base plate. The pushing assemblies correspond to the middles of the two side edges, away from the positioning assembly, of the brake base and are used for pushing the brake base to move towards the positioning assembly to achieve abutting; the fixing assembly comprises a fixing sleeve column, a telescopic rod and a pressing block, the telescopic rod is slidably arranged in the fixing sleeve column in the vertical direction and can axially rotate in the fixing sleeve column, the pressing block is fixedly arranged on one side of the top end of the telescopic rod, fixing pin holes are formed in the fixing sleeve column and the telescopic rod, and fixing pins are inserted into the fixing pin holes. When the milling fixture for the brake seat is used, the brake seat is simple and convenient to mount and dismount, and the origin of coordinates of the brake seats in the same batch only needs to be determined once during processing, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of milling auxiliary tools, specifically a brake seat milling fixture. Background Technology

[0002] The brake seat is an important component on a train. It is located between two carriages and serves as a connector. When the train decelerates, the brake seat is mainly used to buffer the impact of the rear carriage and prevent deformation of the connecting parts between the carriages.

[0003] The production of brake seats mainly includes two steps: casting and milling. The milling step can make the end face of the part flat and improve the stability of the part fit. When milling the brake seat casting, clamping fixtures are needed to help fix it, so as to avoid movement during the milling process, which would cause milling errors or lead to scrap of the part.

[0004] Utility model patent CN209157738U discloses a brake seat milling fixture, including a base plate, three sets of clamping components disposed on the base plate, and clamping elements located on both sides of the base plate. The three sets of clamping components include a central clamping element and two sets of side clamping elements located on either side of the central clamping element. The central clamping element includes a central stud, a central pressure plate slidably disposed on the central stud, and a central clamping nut located on the upper side of the pressure plate. The central clamping nut is threadedly connected to the central stud. The side clamping elements include side studs and a lower positioning pressure plate, a first clamping nut, an upper positioning pressure plate, and a second clamping nut arranged sequentially from bottom to top along the side studs. This fixture enables precise positioning of the brake seat, and the upper and lower positioning pressure plates synchronously position the brake seat vertically, preventing part scrap caused by brake seat movement during milling and improving machining accuracy. However, it still has some drawbacks: 1. Its clamping element uses clamping screws to clamp the brake seat from both sides, but the moving length of the clamping screws on both sides is uncertain, making it inconvenient to determine the coordinate origin during milling. The coordinate origin needs to be re-determined after each brake seat is machined, which is inconvenient to operate; 2. Its three sets of clamping components all use clamping nuts and studs to press down the positioning plates of the pressure plates to clamp the brake seat. However, due to the limitations of the shape of the brake seat itself, after each brake seat is milled, all three clamping nuts and three positioning plates need to be removed before the machined brake seat can be removed and a new brake seat can be placed. The installation and disassembly speed is extremely slow, which greatly reduces the work efficiency. Summary of the Invention

[0005] The technical problem to be solved by this utility model is how to overcome the slow installation and disassembly speed of brake seat and how to overcome the technical problem of repeatedly re-determining the coordinate origin, and to provide a brake seat milling fixture that is easy to use and can improve the efficiency of milling work.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a brake seat milling fixture, including a base plate and a positioning component, a clamping component, and a fixing component mounted on the base plate. The positioning component is an L-shaped frame that is fixed on the base plate, with one corner of the brake seat clamped inside it. Two clamping components are provided, corresponding to the middle of the two sides of the brake seat away from the positioning component, respectively, for pushing the brake seat towards the positioning component to achieve clamping. The fixing component includes a fixing sleeve column, a telescopic rod, and a pressing block. The telescopic rod is slidably disposed in the fixing sleeve column in the vertical direction and can rotate axially within the fixing sleeve column. The pressing block is fixedly disposed on one side of the top end of the telescopic rod. The fixing sleeve column and the telescopic rod are provided with fixing pin holes, and fixing pins are inserted inside for fixing the telescopic rod.

[0007] Furthermore, the clamping assembly includes a fixing block, an elastic telescopic rod, and a clamping block. The fixing block is fixed on the base plate, and an elastic telescopic rod is provided on the side of the fixing block near the brake seat. The end of the elastic telescopic rod away from the fixing block is fixedly connected to the clamping block.

[0008] Furthermore, the elastic telescopic rod includes a sliding rod and a clamping spring. The fixed block has a through hole, through which the sliding rod passes and is slidably connected. The clamping spring is sleeved on the outside of the sliding rod, and its two ends are respectively connected to the fixed block and the clamping block.

[0009] Furthermore, a handle is provided at one end of the sliding rod near the fixed block for pulling the sliding rod to move.

[0010] Furthermore, a return spring is provided at the bottom of the fixed sleeve column, and a cavity is provided at the bottom of the telescopic rod. The return spring is located in the cavity, and an isolation plate is fixedly provided at the top of the return spring. The isolation plate is rotatably connected to the top of the cavity.

[0011] Furthermore, a limiting post is provided on the bottom side wall of the telescopic rod, and a corresponding limiting groove is provided on the inner wall of the fixed sleeve post. The limiting groove is divided into two sections, namely a vertical section and a spiral section, and the bottom end of the spiral section is connected to the top end of the vertical section. The limiting post is slidably disposed in the limiting groove.

[0012] Furthermore, a push button is provided at the top of the telescopic rod, and the push button is rotatably connected to the telescopic rod.

[0013] Furthermore, the bottom of the clamping block is provided with anti-slip texture.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. A fixed L-shaped frame is used in conjunction with a clamping component for positioning, so that the origin point remains unchanged for each processing, eliminating the need to re-determine the coordinate origin point before each processing, thus saving processing time.

[0016] 2. The telescopic rod of the fixed component is slidably and rotatably installed inside the fixed sleeve column, thereby avoiding the clamping block from obstructing the installation, disassembly and replacement of brake seat parts, and reducing the time required for parts replacement.

[0017] The brake seat is easy and convenient to install and disassemble, and the coordinate origin only needs to be determined once for the same batch of brake seats during processing, which greatly improves work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a brake seat milling fixture according to this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of a brake seat milling fixture in use according to this utility model. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of a brake seat milling fixture in use according to this utility model. Figure 2 .

[0021] Figure 4 This is a schematic diagram of the fixing component of a brake seat milling fixture according to this utility model.

[0022] Figure 5 This is a schematic diagram of the longitudinal section structure of the fixing component of a brake seat milling fixture according to the present invention.

[0023] As shown in the figure: 1. Base plate; 2. Positioning assembly; 3. Clamping assembly; 4. Fixing assembly; 5. Fixing sleeve post; 6. Telescopic rod; 7. Pressing block; 8. Fixing pin hole; 9. Fixing pin; 10. Fixing block; 11. Elastic telescopic rod; 12. Clamping block; 13. Sliding rod; 14. Clamping spring; 15. Through hole; 16. Pull handle; 17. Return spring; 18. Cavity; 19. Isolation plate; 20. Limiting post; 21. Limiting slide groove; 22. Press button. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0027] Example 1: Combined with Appendix Figure 1 , 2 3.

[0028] A brake seat milling fixture includes a base plate 1 and a positioning component 2, a clamping component 3, and a fixing component 4 mounted on the base plate 1. The positioning component 2 is an L-shaped frame that is fixed to the base plate 1, with one corner of the brake seat clamped inside it. Two clamping components 3 are provided, corresponding to the middle of the two sides of the brake seat away from the positioning component 2, respectively, for pushing the brake seat towards the positioning component 2 to achieve clamping. The fixing component 4 includes a fixing sleeve post 5, a telescopic rod 6, and a clamping block 7. The telescopic rod 6 is slidably disposed in the fixing sleeve post 5 in the vertical direction and can rotate axially within the fixing sleeve post 5. The clamping block 7 is fixedly disposed on one side of the top end of the telescopic rod 6. The fixing sleeve post 5 and the telescopic rod 6 are provided with fixing pin holes 8, with fixing pins 9 inserted inside for fixing the telescopic rod 6.

[0029] The base plate 1 has fixing holes at its four corners for fixing the fixture onto the worktable of the milling machine.

[0030] Through the above structure, the fixed positioning component 2 can position one corner of the brake seat, and cooperate with the clamping components 3 on the other two sides to accurately position the brake seat. The position remains unchanged after each replacement of the brake seat to be processed, thus requiring only the determination of the coordinate origin once at the beginning of the production of the same batch of brake seats. The telescopic rod 6 in the fixed component 4 can move up and down along the fixed sleeve column 5 and can rotate. The position of the telescopic rod 6 is fixed by the cooperation of the fixed pin 9 and the fixed pin hole 8. The operation is simple and convenient. When disassembling or replacing a new brake seat blank, it is only necessary to lift the telescopic rod 6 and rotate the clamping block 7 to the desired position. Figure 2 The state shown is sufficient to avoid the clamping block 7 obstructing the placement and removal of the brake seat.

[0031] Example 2: Combined with Appendix Figure 1 .

[0032] The clamping assembly 3 includes a fixing block 10, an elastic telescopic rod 11, and a clamping block 12. The fixing block 10 is fixed on the base plate 1, and the elastic telescopic rod 11 is provided on the side of the fixing block 10 near the brake seat. The end of the elastic telescopic rod 11 away from the fixing block 10 is fixedly connected to the clamping block 12.

[0033] The elastic telescopic rod 11 includes a sliding rod 13 and a clamping spring 14. The fixed block 10 is provided with a through hole 15. The sliding rod 13 passes through the through hole 15 and the two are slidably connected. The clamping spring 14 is sleeved on the outside of the sliding rod 13, and its two ends are respectively connected to the fixed block 10 and the clamping block 12.

[0034] The sliding rod 13 is provided with a handle 16 at one end near the fixed block 10 for pulling the sliding rod 13 to move.

[0035] By pushing the fixing block 10 towards the brake seat with the clamping spring 14, the brake seat can be pressed against it so that one corner of it fits tightly against the inner wall of the positioning component 2, achieving precise positioning. By pulling the handle 16, the sliding rod 13 can be moved outward, thus facilitating the placement of the brake seat on the base plate 1.

[0036] Example 3: Combined with Appendix Figure 4 , 5 .

[0037] The bottom of the fixed sleeve column 5 is provided with a return spring 17, the bottom of the telescopic rod 6 is provided with a cavity 18, the return spring 17 is located in the cavity 18, and the top of the return spring 17 is fixedly provided with an isolation plate 19, which is rotatably connected to the top of the cavity 18.

[0038] The telescopic rod 6 has a limiting post 20 on its bottom side wall, and the fixed sleeve column 5 has a corresponding limiting groove 21 on its inner wall. The limiting groove 21 is divided into two sections, namely a vertical section and a spiral section, and the bottom end of the spiral section is connected to the top end of the vertical section. The limiting post 20 is slidably disposed in the limiting groove 21.

[0039] The telescopic rod 6 is provided with a push button 22 at the top, and the push button 22 is rotatably connected to the telescopic rod 6.

[0040] The bottom of the clamping block 7 is provided with anti-slip texture.

[0041] During the up-and-down movement of the telescopic rod 6, the limiting post 20 and the limiting slide groove 21 cooperate to limit the movement, so that the telescopic rod 6 moves upward first and then rotates 180 degrees, so that the clamping block 7 leaves the brake seat and avoids affecting the placement and removal of the brake seat. During the descent of the telescopic rod 6, it rotates 180 degrees first and then descends to press the brake seat. When the telescopic rod 6 descends to its lowest point (the clamping block 7 will contact and press the top surface of the brake seat), the telescopic rod 6 and the fixing pin hole 8 on the fixing sleeve post 5 are aligned with each other. By inserting the fixing pin 9 into the fixing pin hole 8, the position of the telescopic rod 6 is fixed. The function of the return spring 17 is to push the telescopic rod 6 to rise, so as to facilitate the removal and placement of the brake seat. When pressing down the telescopic rod 6, the hand can contact the pressing button 22 to press down. Since the pressing button 22 is rotatably connected to the telescopic rod 6, the telescopic rod 6 can rotate more smoothly when pressed down. Since the isolation plate 19 at the top of the return spring 17 is rotatably connected to the top of the cavity 18, it avoids damage to the return spring 17 when the telescopic rod 6 rotates.

[0042] In practical implementation, in the initial state, this fixture is an attachment. Figure 1 As shown, when in use, remove the fixing pin 9. Under the action of the return spring 17, the telescopic rod 6 moves upward and rotates 180 degrees to the position shown. Figure 2 In the first position, place the brake seat in the fixture from top to bottom. Pull the handle 16 to move the clamping block 12 outward, avoiding the brake seat, so that the bottom surface of the brake seat can contact the base plate 1. After releasing the handle 16, the clamping spring 14 pushes the clamping block 12 towards the brake seat, so that one corner of the brake seat abuts against the positioning component 2 for precise positioning. Press down the button 22 to move the telescopic rod 6 downward. Under the limiting action of the limiting post 20 and the limiting slide groove 21, the telescopic rod 6 rotates synchronously during the downward movement, and finally moves vertically downward, so that the clamping block 7 presses against the top surface of the brake seat. Insert the fixing pin 9 into the fixing pin hole 8 to fix it. After fixing, it is attached. Figure 3 The state shown.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A brake seat milling fixture, comprising a base plate (1) and a positioning assembly (2), a clamping assembly (3), and a fixing assembly (4) mounted on the base plate (1), characterized in that: The positioning component (2) is an L-shaped frame, which is fixed on the base plate (1). One corner of the brake seat is stuck on its inner side. There are two clamping components (3), which correspond to the middle of the two sides of the brake seat away from the positioning component (2) respectively, and are used to push the brake seat to move towards the positioning component (2) to achieve clamping. The fixing component (4) includes a fixing sleeve column (5), a telescopic rod (6) and a clamping block (7). The telescopic rod (6) is slidably disposed in the fixing sleeve column (5) in the vertical direction and can rotate axially within the fixing sleeve column (5). The clamping block (7) is fixedly disposed on one side of the top end of the telescopic rod (6). The fixing sleeve column (5) and the telescopic rod (6) are provided with fixing pin holes (8), and fixing pins (9) are inserted inside to fix the telescopic rod (6).

2. A fixture for brake rotor milling according to claim 1, characterized in that: The clamping assembly (3) includes a fixing block (10), an elastic telescopic rod (11), and a clamping block (12). The fixing block (10) is fixed on the base plate (1), and the elastic telescopic rod (11) is provided on the side of the fixing block (10) near the brake seat. The end of the elastic telescopic rod (11) away from the fixing block (10) is fixedly connected to the clamping block (12).

3. A fixture for brake rotor milling according to claim 2, characterized in that: The elastic telescopic rod (11) includes a sliding rod (13) and a clamping spring (14). The fixed block (10) is provided with a through hole (15). The sliding rod (13) passes through the through hole (15) and the two are slidably connected. The clamping spring (14) is sleeved on the outside of the sliding rod (13) and its two ends are respectively connected to the fixed block (10) and the clamping block (12).

4. A fixture according to claim 3, wherein: The sliding rod (13) has a handle (16) at one end near the fixed block (10) for pulling the sliding rod (13) to move.

5. A fixture according to claim 1 or 4, characterized in that: The bottom of the fixed sleeve column (5) is provided with a return spring (17), the bottom of the telescopic rod (6) is provided with a cavity (18), the return spring (17) is located in the cavity (18), and the top of the return spring (17) is fixedly provided with an isolation plate (19), which is rotatably connected to the top of the cavity (18).

6. A fixture according to claim 5, wherein: The telescopic rod (6) has a limiting post (20) on its bottom side wall, and the fixed sleeve post (5) has a corresponding limiting groove (21). The limiting groove (21) is divided into two sections, namely a vertical section and a spiral section, and the bottom end of the spiral section is connected to the top end of the vertical section. The limiting post (20) is slidably disposed in the limiting groove (21).

7. A fixture according to claim 6, wherein: The telescopic rod (6) is provided with a push button (22) at the top, and the push button (22) is rotatably connected to the telescopic rod (6).

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