Positioning clamp for brake pad steel back processing

Abstract

The utility model relates to the field of steel back clamp, specifically is a kind of positioning fixture for brake pad steel back processing, it is characterized by including: processing table base, the first support plate is fixedly arranged at the left side of processing table base top, the second support plate is fixedly arranged at the right side of processing table base top, the first support plate right side is rotatably arranged with connecting column, the second support plate left side is rotatably arranged with connecting block, the connecting block left side is opened with installation slot, the installation slot inside is slidably arranged with mounting block, the mounting block is fixedly arranged with clamping head in the side of connecting column and processing table base middle part, including;The utility model can adjust clamping spacing by sliding mounting block, can be adapted to different length specifications of brake pad steel back, need not to replace special fixture, reduce equipment cost;Meanwhile, processing angle can be flexibly adjusted by rotating handle, avoid repeatedly disassembling and reassembling steel back, greatly improve processing efficiency, especially suitable for multi-surface processing scene.

Description

Technical Field

[0001] This utility model relates to the field of steel backing fixtures, specifically a positioning fixture for processing brake pad steel backing. Background Technology

[0002] Steel-backed clamps are tooling fixtures with high-strength steel as their core material. They are mainly used for workpiece positioning, clamping, and fixing in industrial production, and are commonly found in machining, automotive manufacturing, sheet metal processing, and other fields. Their core advantage lies in the strong load-bearing capacity and stability provided by the steel back structure, which can withstand complex working conditions such as cutting forces and high welding temperatures, preventing clamp deformation from affecting machining accuracy. The design typically includes adjustable clamping components and positioning reference surfaces, which can be flexibly adapted to workpiece dimensions. Some models also integrate buffer pads or anti-slip coatings to protect the workpiece surface from scratches. Compared to ordinary cast iron or plastic clamps, steel-backed clamps have a longer service life and are easier to maintain, requiring only periodic rust removal and lubrication. Based on application scenarios, they can be divided into general-purpose and customized types. The former is suitable for various standard workpieces, while the latter is specifically designed for irregularly shaped or high-precision workpieces, making them key tooling components for improving production efficiency and machining consistency.

[0003] A search revealed Chinese Patent Publication No. CN105415052B, which discloses a brake pad steel back positioning fixture. The fixture includes a worktable, an electromagnetic chuck, and a top plate. The electromagnetic chuck is fixedly installed under the worktable, and a contoured positioning groove matching the outer contour of the steel back is formed through the worktable. The top plate is positioned on the side of the worktable and is equipped with a power mechanism that drives the top plate to move towards or away from the contoured positioning groove. The thickness of the worktable is less than the thickness of the steel back. This brake pad steel back positioning fixture achieves clamping and positioning of the steel back through the clamping force of the top plate and the suction force of the electromagnetic chuck. It has the advantages of being simple, easy to operate, and improving processing efficiency. Furthermore, the uniform electromagnetic suction force of the electromagnetic chuck replaces the clamping force of the pressure plate, preventing the steel back from deforming due to compression during clamping and positioning, thus ensuring consistent depth of the subsequently processed stepped holes, guaranteeing product quality, and improving yield.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: the equipment has significant limitations, and the angle cannot be properly adjusted during the steel backing processing. During the grinding process, workers need to repeatedly disassemble, adjust the fixture positioning, and reinstall and fix it, which is time-consuming and labor-intensive. Therefore, in order to address the above problems, a positioning fixture for processing brake pad steel backing is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a positioning fixture for processing the steel back of brake pads.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a positioning fixture for processing brake pad steel backing, comprising: a processing table base, a first support plate fixedly disposed on the left side of the top of the processing table base, a second support plate fixedly disposed on the right side of the top of the processing table base, a connecting column rotatably disposed on the right side of the first support plate, a connecting block rotatably disposed on the left side of the second support plate, an installation groove opened on the left side of the connecting block, an installation block slidably disposed inside the installation groove, a clamping head fixedly disposed on the side of the installation block and the connecting column near the middle of the processing table base, and a rotating handle fixedly disposed on the left side of the connecting column.

[0007] Preferably, the clamping head has multiple sets of movable holes at its upper and lower ends. A movable column is slidably disposed inside each movable hole. A limit head is fixedly disposed at the end of the movable column away from the middle of the clamping head. A fixing plate is fixedly disposed at the end of the movable column near the middle of the clamping head. Mounting holes are provided at the middle of the upper and lower ends of the clamping head. Threads are provided on the inner wall of the mounting holes. A screw is threadedly connected inside the mounting holes. The end of the screw near the middle of the clamping head is rotatably connected to the fixing plate. A gripping head is fixedly disposed at the end of the screw away from the middle of the clamping head.

[0008] Preferably, the top of the processing table base is provided with a guide ramp, the front side of the processing table base is provided with a slot, a debris collection plate is slidably disposed inside the slot, the top of the debris collection plate is provided with a collection groove, a handle is fixedly disposed on the front side of the debris collection plate, and the lower end of the guide ramp is disposed towards the slot to guide the processing debris into the collection groove of the debris collection plate.

[0009] Preferably, a storage slot is provided on the left side of the processing table base, and a cover plate is hinged to the opening of the storage slot. An extension block is fixedly provided on the left side of the cover plate.

[0010] Preferably, a limiting plate is sleeved on the connecting column, and a first limiting hole is distributed in a ring on the limiting plate. A second limiting hole that can communicate with the first limiting hole is opened at the position where the first support plate fits with the limiting plate. A scale is provided above the second limiting hole. A pin is provided inside the first limiting hole and the second limiting hole. An anti-slip sleeve is provided at the end of the pin away from the first limiting hole. A magnetic head is fixedly provided at the end of the pin near the first limiting hole. The magnetic head is attracted to the end of the second limiting hole to prevent the pin from falling off.

[0011] Preferably, a fixing knob is threaded onto one side of the connecting block, the fixing knob extends into the mounting groove, and a force-bearing plate is fixedly installed on the side of the mounting block near the fixing knob. The fixing knob extends into the mounting groove and abuts against the force-bearing plate. Tightening the fixing knob compresses the force-bearing plate, thereby fixing the position of the mounting block in the mounting groove. A counterweight base is fixedly installed at the bottom of the processing table base, and an anti-slip pad is fixedly installed at the bottom of the counterweight base.

[0012] The advantages of this utility model are: This utility model features: adjustable clamping distance achieved by sliding mounting block, which can adapt to brake pad steel backings of different lengths and specifications, eliminating the need to replace special clamps and reducing equipment costs; at the same time, the processing angle can be flexibly adjusted by rotating the handle, avoiding repeated disassembly and reassembly of the steel backing, greatly improving processing efficiency, and is especially suitable for multi-faceted processing scenarios. The screw driven by the threaded drive pushes the fixing plate to clamp, which provides a more uniform and precise clamping force compared to the traditional snap-fit ​​fixing, avoiding deformation of the steel back due to excessive local stress. The cooperation of multiple sets of movable columns and movable holes ensures that the fixing plate remains horizontal when moving, further improving the positioning accuracy of the steel back, reducing processing errors, and ensuring the subsequent assembly quality of the brake pads. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the clamping head structure of this utility model; Figure 3 This is a schematic diagram of the connecting block structure of this utility model; Figure 4 This is a schematic diagram of the limiting disk structure of this utility model; Figure 5 This is a schematic diagram of the debris collection plate structure of this utility model.

[0015] In the diagram: 1. Machining table base; 11. First support plate; 12. Second support plate; 13. Connecting column; 14. Connecting block; 15. Mounting slot; 16. Mounting block; 17. Clamping head; 18. Rotating handle; 2. Movable hole; 21. Movable column; 22. Limiting head; 23. Fixing plate; 24. Mounting hole; 25. Screw; 26. Clamping head; 3. Guide ramp; 31. Slot; 32. Debris collection plate; 33. Collection groove; 34. Handle; 4. Fixing knob; 5. Storage slot; 51. Cover plate; 52. Extension block; 6. Limiting plate; 61. First limiting insertion hole; 62. Second limiting insertion hole; 63. Scale; 64. Pin; 65. Anti-slip sleeve; 66. Magnetic head; 7. Force plate; 8. Counterweight base; 9. Anti-slip pad. Detailed Implementation

[0016] 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 scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a positioning fixture for machining the steel backing of brake pads. (Refer to...) Figure 1 and Figure 3 A positioning fixture for machining brake pad steel backing includes: a machining table base 1; a first support plate 11 is fixedly mounted on the left side of the top of the machining table base 1; a second support plate 12 is fixedly mounted on the right side of the top of the machining table base 1; a connecting column 13 is rotatably mounted on the right side of the first support plate 11; a connecting block 14 is rotatably mounted on the left side of the second support plate 12; an installation groove 15 is opened on the left side of the connecting block 14; an installation block 16 is slidably mounted inside the installation groove 15; a clamping head 17 is fixedly mounted on the side of the installation block 16 and the connecting column 13 near the middle of the machining table base 1; a rotating handle 18 is fixedly mounted on the left side of the connecting column 13; by adjusting the distance between the two clamping heads 17 until the distance is suitable for machining the steel backing, the steel backing is placed between the two clamping heads 17; then, the connecting column 13 and the connecting block 14 can be rotated synchronously by rotating the handle 18, thereby adjusting the machining angle of the steel backing to adapt to machining requirements in different directions.

[0018] Reference Figure 1 and Figure 2The clamping head 17 has multiple sets of movable holes 2 at its upper and lower ends. A movable column 21 is slidably disposed inside each movable hole 2. A limit head 22 is fixedly disposed at the end of the movable column 21 away from the middle of the clamping head 17. A fixing plate 23 is fixedly disposed at the end of the movable column 21 near the middle of the clamping head 17. Mounting holes 24 are formed at the middle of both the upper and lower ends of the clamping head 17. Threads are formed on the inner wall of the mounting holes 24. A screw 25 is threaded inside the mounting holes 24. The end of the screw 25 near the middle of the clamping head 17 is rotatably connected to the fixing plate 23. The end of the screw 25 away from the middle of the clamping head 17... A gripping head 26 is fixedly installed. When using the clamping head 17 to fix the steel back, first rotate the gripping head 26 to drive the screw 25 to move outward along the mounting hole 24. The screw 25 drives the fixing plate 23 to move away from the middle of the clamping head 17 at the same time. At this time, the movable column 21 slides along the movable hole 2 with the fixing plate 23. After the spacing of the fixing plates 23 is adapted to the thickness of the steel back, the steel back is placed between the two fixing plates 23. Then rotate the gripping head 26 in the opposite direction so that the screw 25 pushes the fixing plate 23 to clamp the steel back. The limiting head 22 can prevent the movable column 21 from disengaging from the movable hole 2, ensuring the stability of the clamping process.

[0019] Reference Figure 1 and Figure 5 The processing table base 1 has a guide ramp 3 at the top and a slot 31 at the front. A chip collection plate 32 is slidably disposed inside the slot 31. A collection groove 33 is provided at the top of the chip collection plate 32. A handle 34 is fixedly disposed at the front of the chip collection plate 32. The lower end of the guide ramp 3 faces the slot 31 and is used to guide the processing chips into the collection groove 33 of the chip collection plate 32. During the processing, the generated metal chips will slide into the collection groove 33 of the chip collection plate 32 along the inclined surface of the guide ramp 3. When there are many chips in the collection groove 33, hold the handle 34 and pull the chip collection plate 32 out along the slot 31. After emptying the chips, push the chip collection plate 32 back to its original position along the slot 31 to complete the chip cleaning operation.

[0020] Reference Figure 1 and Figure 5 The processing table base 1 has a storage slot 5 on the left side. A cover plate 51 is hinged to the opening of the storage slot 5. An extension block 52 is fixedly installed on the left side of the cover plate 51. Pull the extension block 52 by hand to make the cover plate 51 rotate around the hinge point and open the storage slot 5. Put the tool into the storage slot 5. After the tool is stored, rotate the cover plate 51 in the opposite direction to close the storage slot 5 to prevent the tool from being lost or getting dusty.

[0021] Reference Figure 1 and Figure 5A limiting plate 6 is sleeved on the connecting column 13. The limiting plate 6 has a ring of first limiting holes 61. A second limiting hole 62, which communicates with the first limiting hole 61, is provided at the position where the first support plate 11 fits against the limiting plate 6. A scale 63 is provided above the second limiting hole 62. A pin 64 is provided inside the first limiting hole 61 and the second limiting hole 62. An anti-slip sleeve 65 is provided at the end of the pin 64 away from the first limiting hole 61. A magnetic head 66 is fixedly provided at the end of the pin 64 near the first limiting hole 61, and the magnetic head 66 is attracted to the second limiting hole. To prevent the pin 64 from disengaging, when adjusting the machining angle of the steel back, first hold the anti-slip sleeve 65 and pull the pin 64 out of the first limiting socket 61 and the second limiting socket 62. At this time, the connecting column 13 can be rotated to drive the limiting plate 6 to rotate. Determine the required angle according to the scale 63 above the second limiting socket 62. When a first limiting socket 61 on the limiting plate 6 is aligned with the second limiting socket 62, insert the pin 64 into the aligned socket. The magnetic head 66 is attracted to the end of the second limiting socket 62, thereby fixing the angle of the connecting column 13 and ensuring the accuracy of the machining angle.

[0022] Reference Figure 1 and Figure 3 A fixing knob 4 is threaded onto one side of the connecting block 14. The fixing knob 4 extends into the mounting groove 15. A force-bearing plate 7 is fixedly installed on the side of the mounting block 16 near the fixing knob 4. The fixing knob 4 extends into the mounting groove 15 and abuts against the force-bearing plate 7. Tightening the fixing knob 4 presses against the force-bearing plate, thus fixing the position of the mounting block 16 in the mounting groove 15. A counterweight base 8 is fixedly installed at the bottom of the processing table base 1. An anti-slip pad 9 is fixedly installed at the bottom of the counterweight base 8. Before adjusting the position of the mounting block 16 along the mounting groove 15, the fixing knob 4 is rotated in the opposite direction to separate the fixing knob 4 from the force-bearing plate 7, thus releasing the fixation of the mounting block 16. After the mounting block 16 is adjusted to the appropriate position, the fixing knob 4 is rotated clockwise to gradually press against the force-bearing plate 7, thus fixing the position of the mounting block 16 through friction. The counterweight base 8 can increase the overall weight of the fixture and prevent the fixture from tipping over during processing. The anti-slip pad 9 can increase the friction between the base and the ground, further improving the stability of the fixture.

[0023] Working principle: Adjust the distance between the two clamping heads 17 until the distance is suitable for the steel back. Rotate the gripping head 26 to drive the screw 25 to move outward along the mounting hole 24. The screw 25 drives the fixing plate 23 to move away from the center of the clamping head 17. At this time, the movable column 21 slides along the movable hole 2 with the fixing plate 23. After the distance between the fixing plates 23 is suitable for the thickness of the steel back, place the steel back between the two fixing plates 23. Then rotate the gripping head 26 in the opposite direction to make the screw 25 push the fixing plate 23 to clamp the steel back. The limiting head 22 can prevent the movable column 21 from disengaging from the movable hole 2, ensuring the stability of the clamping process. Subsequently, the connecting column 13 and the connecting block 14 can be rotated synchronously by rotating the handle 18, thereby adjusting the processing angle of the steel back to adapt to the processing requirements of different directions.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positioning fixture for machining the steel backing of brake pads, comprising: The processing table base (1) is characterized in that: a first support plate (11) is fixedly provided on the left side of the top of the processing table base (1), a second support plate (12) is fixedly provided on the right side of the top of the processing table base (1), a connecting column (13) is rotatably provided on the right side of the first support plate (11), a connecting block (14) is rotatably provided on the left side of the second support plate (12), an installation groove (15) is provided on the left side of the connecting block (14), an installation block (16) is slidably provided inside the installation groove (15), a clamping head (17) is fixedly provided on the side of the installation block (16) and the connecting column (13) near the middle of the processing table base (1), and a rotating handle (18) is fixedly provided on the left side of the connecting column (13).

2. The positioning fixture for machining the steel back of brake pads according to claim 1, characterized in that: The clamping head (17) has multiple sets of movable holes (2) at its upper and lower ends. Movable columns (21) are slidably arranged inside the movable holes (2). A limit head (22) is fixedly arranged at one end of the movable column (21) away from the middle of the clamping head (17). A fixing plate (23) is fixedly arranged at one end of the movable column (21) near the middle of the clamping head (17). Mounting holes (24) are opened at the middle of the upper and lower ends of the clamping head (17). Threads are opened on the inner wall of the mounting holes (24). A screw (25) is threaded inside the mounting holes (24). The screw (25) is rotatably connected to the fixing plate (23) at one end near the middle of the clamping head (17). A gripping head (26) is fixedly arranged at one end of the screw (25) away from the middle of the clamping head (17).

3. The positioning fixture for machining the steel backing of brake pads according to claim 1, characterized in that: The processing table base (1) has a guide ramp (3) at the top and a slot (31) at the front. A chip collection plate (32) is slidably arranged inside the slot (31). A collection groove (33) is provided at the top of the chip collection plate (32). A handle (34) is fixedly provided at the front of the chip collection plate (32). The lower end of the guide ramp (3) is set towards the slot (31) to guide the processing chips into the collection groove (33) of the chip collection plate (32).

4. A positioning fixture for machining the steel backing of brake pads according to claim 1, characterized in that: The processing table base (1) has a storage slot (5) on the left side, and a cover plate (51) is hinged to the opening of the storage slot (5). An extension block (52) is fixedly installed on the left side of the cover plate (51).

5. A positioning fixture for machining the steel back of brake pads according to claim 1, characterized in that: A limiting plate (6) is sleeved on the connecting column (13). A first limiting hole (61) is distributed in a ring on the limiting plate (6). A second limiting hole (62) that can communicate with the first limiting hole (61) is opened at the position where the first support plate (11) and the limiting plate (6) are attached. A scale (63) is provided above the second limiting hole (62). A pin (64) is provided inside the first limiting hole (61) and the second limiting hole (62). An anti-slip sleeve (65) is provided at the end of the pin (64) away from the first limiting hole (61). A magnetic head (66) is fixedly provided at the end of the pin (64) close to the first limiting hole (61). The magnetic head (66) is attracted to the end of the second limiting hole (62) to prevent the pin (64) from falling off.

6. A positioning fixture for machining the steel back of brake pads according to claim 1, characterized in that: The connecting block (14) is threaded with a fixing knob (4) on one side. The fixing knob (4) extends into the mounting groove (15). The mounting block (16) is fixedly provided with a force plate (7) on the side near the fixing knob (4). The fixing knob (4) extends into the mounting groove (15) and abuts against the force plate (7). Tightening the fixing knob (4) squeezes the force plate, thereby fixing the position of the mounting block (16) in the mounting groove (15). The bottom end of the processing table base (1) is fixedly provided with a counterweight base (8). The bottom end of the counterweight base (8) is fixedly provided with an anti-slip pad (9).

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