Brake pad hydraulic riveting equipment

Abstract

The utility model discloses hydraulic riveting equipment for brake pads. The hydraulic riveting equipment comprises a hydraulic machine; the lower die comprises a lower base plate, a lower sliding seat and a positioning jig, the lower sliding seat is connected to the lower base plate in a sliding mode, the output end of the first driving piece is connected with the lower sliding seat, and a first brake pad and a second brake pad are sequentially arranged on the positioning jig from the side away from the first driving piece; the upper die comprises an upper base plate and an upper die plate, the upper die plate is connected to the upper base plate in a sliding mode, the output end of the second driving piece is connected with one side of the upper die plate, and the upper die plate is provided with a second riveting part and a first riveting part which are sequentially arranged from the end away from the second driving piece. Compared with the prior art, two brake pads are riveted together, so that the processing efficiency of a group of brake pads is improved, and meanwhile, the equipment cost and the production cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting devices, in particular to a brake pad hydraulic riveting device. Background Art

[0002] High-speed trains usually use disc brakes. Brake discs are installed on the axles or on the sides of the wheel spokes. The brake calipers are used to press the two brake pads against the brake discs. The friction generates a braking force to stop the train from moving forward. The train brake pads generally use a rivet fixing process to connect the brake pad structure. For example, Chinese patent CN219712151U discloses a brake pad, which relates to the technical field of brake devices to avoid the friction material of the friction body assembly from falling off as a whole, prolong the service life of the brake pad, and improve the reliability of the safe operation of high-speed rail. The brake pad includes a friction body assembly, a steel back assembly and a connecting piece. The friction body assembly includes a back plate and a friction body body. The friction body body has a friction surface for friction contact with the brake disc. The back plate is fixedly arranged on the side of the friction body body away from the friction surface. The periphery of the back plate is provided with an extension covering the side edge of the friction body body. The friction body assembly is provided with a first through hole. The steel back assembly is arranged on the side of the friction body body away from the friction surface. The steel back assembly is provided with a second through hole. The axis of the first through hole is collinear with the axis of the second through hole. One end of the connecting piece extends into the first through hole to connect the connecting piece to the friction body assembly, and the other end of the connecting piece extends into the second through hole to connect the connecting piece to the steel back assembly.

[0003] The two brake pads located on both sides of the brake disc constitute a set of brake pads, but the structures of the two brake pads are different, resulting in two sets of equipment being required to process the two brake pads respectively when processing the brake pads, which increases the production cost. Utility Model Content

[0004] The utility model aims to provide a brake pad hydraulic riveting device, which can rivet two brake pads together, thereby improving the processing efficiency of a group of brake pads, while reducing equipment costs and production costs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a brake pad hydraulic riveting device, comprising:

[0006] A hydraulic press comprises a frame, a workbench, a hydraulic cylinder and an upper die seat, wherein the frame is provided with a workbench, and the upper die seat is fixedly mounted on the cylinder rod of the hydraulic cylinder;

[0007] The lower die comprises a lower pad, a lower slide seat and a positioning fixture, wherein the lower pad is fixedly mounted on the workbench, the lower slide seat is slidably connected to the lower pad, the output end of the first driving member is connected to the lower slide seat, and the positioning fixture is provided with a first brake pad and a second brake pad arranged in sequence from a side away from the first driving member;

[0008] The upper die includes an upper pad and an upper die plate. The upper pad is fixedly mounted on the upper die base. The upper die plate is slidably connected to the upper pad. The output end of the second driving member is connected to one side of the upper die plate. The upper die plate is provided with a second riveting portion and a first riveting portion arranged in sequence from the end away from the second driving member. The first riveting portion is used for press-riveting the first rivet on the first brake pad, and the second riveting portion is used for press-riveting the second rivet on the second brake pad.

[0009] As a further description of the above technical solution:

[0010] The first brake pad includes a first back plate and a first friction portion. The first back plate is provided with a plurality of first rivets. The rivet shanks of the first rivets extend into the first friction portion. The first riveted portion includes a plurality of first rivet heads. One first rivet head position corresponds to one first rivet.

[0011] As a further description of the above technical solution:

[0012] A pressure sensor is arranged between the first riveting head and the upper template.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the lower die is fixedly mounted on the workbench of the frame, the upper die is fixedly mounted on the upper die seat, the upper die position is correspondingly set above the lower die, the first brake pad and the second brake pad are placed on the positioning fixture of the lower die, and the hydraulic cylinder drives the upper die seat downward during riveting, thereby driving the upper die downward, and the first riveting part and the second riveting part perform riveting processing on the first brake pad and the second brake pad respectively. The sliding design of the positioning fixture and the upper template enables the first brake pad and the second brake pad to move to the central position during riveting, directly below the hydraulic cylinder, to ensure the quality of rivet riveting and improve the processing quality of the brake pad.

[0015] 2. In the present invention, a pressure sensor is provided between the first riveting joint and the upper template to accurately monitor the pressure of each first riveting joint during riveting, thereby ensuring the riveting quality of the first rivet and improving the processing quality of the first brake pad. Similarly, the second riveting joint also monitors the pressure during riveting through the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1A schematic diagram of the structure of a brake pad hydraulic riveting equipment Figure 1 .

[0018] Figure 2 A schematic diagram of the structure of a brake pad hydraulic riveting equipment Figure 2 .

[0019] Figure 3 A schematic diagram of the structure of a brake pad hydraulic riveting equipment Figure 3 .

[0020] Figure 4 The figure is a schematic diagram of the structure of the lower die in a hydraulic riveting device for brake pads.

[0021] Figure 5 The figure is a schematic diagram of the structure of the upper die in a hydraulic riveting device for brake pads.

[0022] Figure 6 The figure is a schematic diagram of the pressure riveting of the first brake pad in a brake pad hydraulic riveting device.

[0023] Figure 7 The figure is a schematic diagram of the pressure riveting of the second brake pad in a brake pad hydraulic riveting device.

[0024] Legend:

[0025] 1. Hydraulic press; 11. Frame; 12. Workbench; 13. Hydraulic cylinder; 14. Upper die seat; 15. Safety grating; 2. Lower die; 21. Lower pad; 211. First slide rail; 22. Lower slide seat; 221. First driving member; 23. Positioning fixture; 231. First brake pad; 2311. First rivet; 2312. First backing plate; 2313. First friction part; 232. Second brake pad; 3. Upper die; 31. Upper pad; 32. Second driving member; 33. Upper template; 34. First riveting head; 35. Second riveting head; 36. Pressure sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1-7 The utility model provides a technical solution: a brake pad hydraulic riveting device, comprising:

[0029] The hydraulic press 1 comprises a frame 11, a workbench 12, a hydraulic cylinder 13 and an upper die base 14. The frame 11 is provided with the workbench 12, and the upper die base 14 is fixedly mounted on the cylinder rod of the hydraulic cylinder 13;

[0030] The lower die 2 comprises a lower pad 21, a lower seat 22 and a positioning fixture 23. The lower pad 21 is fixedly mounted on the workbench 12, the lower seat 22 is slidably connected to the lower pad 21, the output end of the first driving member 221 is connected to the lower seat 22, and the positioning fixture 23 is provided with a first brake pad 231 and a second brake pad 232 arranged in sequence from a side away from the first driving member 221;

[0031] The upper mold 3 includes an upper pad 31 and an upper mold plate 33. The upper pad 31 is fixedly mounted on the upper mold base 14. The upper mold plate 33 is slidably connected to the upper pad 31. The output end of the second driving member 32 is connected to one side of the upper mold plate 33. The upper mold plate 33 is provided with a second riveting portion and a first riveting portion arranged in sequence from the end away from the second driving member 32. The first riveting portion is used for press-riveting the first rivet 2311 on the first brake pad 231, and the second riveting portion is used for press-riveting the second rivet on the second brake pad 232.

[0032] The first brake pad 231 includes a first back plate 2312 and a first friction portion 2313. The first back plate 2312 is provided with a plurality of first rivets 2311. The rivet handle of the first rivet 2311 extends into the first friction portion 2313. The first riveting portion includes a plurality of first rivet heads 34. One first rivet head 34 corresponds to one first rivet 2311. The structure of the second brake pad 232 is the same as that of the first brake pad 231. The second brake pad 232 is provided with a plurality of second rivets, and the second riveting portion is correspondingly provided with a plurality of second rivet heads 35 for riveting the second rivets.

[0033] A pressure sensor 36 is provided between the first riveting head 34 and the upper template to accurately monitor the pressure of each first riveting head 34 during riveting, thereby ensuring the riveting quality of the first rivet 2311 and improving the processing quality of the first brake pad 231. Similarly, the second riveting head 35 also monitors the pressure during riveting through the pressure sensor.

[0034] At least one first slide rail 211 is provided on the lower pad 21, and the lower slide seat 22 is slidably connected to the first slide rail 211, so as to realize the sliding connection of the lower slide seat 22 on the lower pad 21. Specifically, two parallel first slide rails 211 can be provided on the lower pad 21. Similarly, the upper template 33 is slidably connected to the second slide rail of the upper pad 31.

[0035] The cross section of the first slide rail 211 is an inverted isosceles trapezoidal structure. That is, the first slide rail 211 is wide at the top and narrow at the bottom, which can effectively prevent the lower slide seat 22 from detaching from the lower pad 21 in a direction perpendicular to the surface of the lower pad 21. The structure of the second slide rail is the same as the first slide rail 211, and similarly prevents the upper template 33 from detaching from the upper pad 31.

[0036] The first driving member 221 is a driving cylinder. Similarly, the second driving member 32 can also be a cylinder.

[0037] A safety grating 15 is provided on one side of the frame 11 to prevent a person's hand from reaching between the workbench 12 and the upper die seat 14 during the riveting process, thereby improving the safety during the processing.

[0038] Working principle: The lower die 2 is fixedly mounted on the workbench 12 of the frame 11, and the upper die 3 is fixedly mounted on the upper die seat 14. The upper die 3 is correspondingly arranged above the lower die 2. The first brake pad 231 and the second brake pad 232 are placed on the positioning fixture 23 of the lower die 2. During riveting, the hydraulic cylinder 13 drives the upper die seat 14 downward, thereby driving the upper die 3 downward. The first riveting part and the second riveting part perform riveting processing on the first brake pad 231 and the second brake pad 232 respectively. The sliding design of the positioning fixture 23 and the upper template 33 enables the first brake pad 231 and the second brake pad 232 to move to the central position during riveting, directly below the hydraulic cylinder 13, to ensure the quality of the rivet riveting and improve the processing quality of the brake pad. The first brake pad 231 and the second brake pad 232 are mounted on the lower die 2 and riveted together to improve the riveting efficiency.

[0039] Specifically, when the first brake pad 231 (i.e., brake pad) is riveted, see the attached Figure 6 The first driving member 221 is not working and is in a retracted state. The second driving member 32 drives the upper template 33 to move away from one end of the second driving member 32, so that the first riveting portion on the upper template 33 is aligned with the first brake pad 231 on the lower positioning fixture 23. The hydraulic cylinder 13 drives the upper die seat 14 downward, and the first riveting head 34 squeezes the first rivet 2311 to deform, thereby completing the riveting of the first brake pad 231.

[0040] Similarly, when the second brake pad 232 is riveted, see the attached Figure 7 The first driving member 221 drives the positioning fixture 23 to move away from one end of the first driving member 221, and the second driving member 32 does not work and is in a retracted state, so that the second riveting portion on the upper template 33 is aligned with the second brake pad 232 on the lower positioning fixture 23, and the hydraulic cylinder 13 drives the upper die seat 14 downward, and the second riveting head squeezes the second rivet to deform, thereby completing the pressure riveting of the second brake pad 232.

[0041] Example 2

[0042] The rest is the same as that of the first embodiment, except that the first rivet joint 34 and the second rivet joint 35 are detachably mounted on the upper template 33 .

[0043] Specifically, taking the first rivet joint 34 as an example, the first rivet joint 34 can be inserted into the upper template 33, and a pressing block is used to press one side edge or multiple side edges of the first rivet joint 34, and the pressing block is fixed to the upper template 33 by bolts. In addition, an extended edge can be provided at the edge of the first rivet joint 34, so that the extended edge of one first rivet joint 34 presses another adjacent first rivet joint 34, thereby improving the integrity of the first rivet joint 34 and reducing the use of pressing blocks.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brake pad hydraulic riveting device, characterized in that: include: A hydraulic press, comprising a frame, a workbench, a hydraulic cylinder and an upper die seat, wherein the workbench is arranged on the frame, and the upper die seat is fixedly mounted on the cylinder rod of the hydraulic cylinder; The lower die comprises a lower pad, a lower slide seat and a positioning fixture, wherein the lower pad is fixedly mounted on the workbench, the lower slide seat is slidably connected to the lower pad, the output end of the first driving member is connected to the lower slide seat, and the positioning fixture is provided with a first brake pad and a second brake pad arranged in sequence from a side away from the first driving member; An upper mold comprises an upper pad and an upper mold plate, wherein the upper pad is fixedly mounted on the upper mold base, the upper mold plate is slidably connected to the upper pad, the output end of the second driving member is connected to one side of the upper mold plate, and the upper mold plate is provided with a second riveting portion and a first riveting portion arranged in sequence from the end away from the second driving member, the first riveting portion is used for press-riveting the first rivet on the first brake pad, and the second riveting portion is used for press-riveting the second rivet on the second brake pad.

2. A brake pad hydraulic riveting device according to claim 1, characterized in that: The first brake pad includes a first back plate and a first friction portion, a plurality of first rivets are arranged on the first back plate, the rivet shanks of the first rivets extend into the first friction portion, the first riveted portion includes a plurality of first rivet heads, and one first rivet head position corresponds to one first rivet.

3. A brake pad hydraulic riveting device according to claim 2, characterized in that: A pressure sensor is arranged between the first riveting head and the upper template.

4. The brake pad hydraulic riveting equipment according to claim 1, characterized in that: The lower pad is provided with at least one first slide rail, and the lower slide seat is slidably connected to the first slide rail.

5. The brake pad hydraulic riveting equipment according to claim 4, characterized in that: The cross section of the first slide rail is an inverted isosceles trapezoidal structure.

6. The brake pad hydraulic riveting equipment according to claim 1, characterized in that: The first driving member is a driving cylinder.

7. The brake pad hydraulic riveting equipment according to claim 1, characterized in that: A safety grating is arranged on one side of the frame.

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