CN210969998U - Rivet pressing and riveting tool for train brake pad - Google Patents
Rivet pressing and riveting tool for train brake pad Download PDFInfo
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- CN210969998U CN210969998U CN201921492910.0U CN201921492910U CN210969998U CN 210969998 U CN210969998 U CN 210969998U CN 201921492910 U CN201921492910 U CN 201921492910U CN 210969998 U CN210969998 U CN 210969998U
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- riveting
- fixing plate
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Abstract
The utility model discloses a rivet pressing and riveting tool for train brake pads, which is used for riveting N friction bodies (8) on a steel back (5), wherein N upper riveting punches (2) are fixed below an upper fixing plate (1) with the heads downward; the N lower riveting punches (3) are fixed above the lower fixing plate (4), and the heads of the lower riveting punches are upward; the working section of the upper riveting punch (2) is of a cylindrical spherical structure with a concave head; the length of the upper riveting punching working section is larger than the depth of the stepped hole of the steel back (5), and the diameter of the upper riveting punching working section is smaller than the diameter of the stepped hole of the steel back (5); the working section of the lower riveting punch (3) is cylindrical, and the head part of the lower riveting punch is a plane; the length of the lower riveting punching working section is larger than the depth of the through hole of the friction body (8), and the diameter of the lower riveting punching working section is smaller than the diameter of the through hole of the friction body (8). The pressure riveting tool is easy to process and operate; the riveting of the rivet is convenient, and the riveting efficiency of the brake pad is improved; the riveting process is safer, and the damage of the riveting machine to the friction body is reduced.
Description
Technical Field
The utility model relates to a mechanical structure technical field especially relates to a rivet is pressed and is riveted frock for train brake lining.
Background
The powder metallurgy brake pad is a brake pad commonly used by a high-speed train, and a brake friction body of the conventional powder metallurgy brake pad is connected with a steel backing by adopting a riveting or circlip process. The riveting brake pad is riveted by a riveting machine, a special tool clamp is not arranged, the riveting brake pad needs to be installed through a universal clamp, the process is complex, the efficiency is low, and the friction body is easily damaged during riveting, so that the rejection rate is high.
Disclosure of Invention
The utility model aims at providing a rivet pressing and riveting tool for train brake pads, which is easy to process and operate; the riveting of the rivet is convenient, and the riveting efficiency of the brake pad is improved; the riveting process is safer, and the damage of the riveting machine to the friction body is reduced.
The utility model aims at realizing through the following technical scheme:
a rivet pressing and riveting tool for a train brake pad is used for riveting N friction bodies 8 on a steel backing 5 and comprises an upper fixing plate 1, a lower fixing plate 4, N upper riveting punches 2 and N lower riveting punches 3;
the N upper riveting punches 2 are fixed below the upper fixing plate 1 according to the riveting positions of the N friction body assemblies, and the heads of the upper riveting punches are downward; the N lower riveting punches 3 are fixed above the lower fixing plate 4 according to the riveting positions of the N friction body assemblies, and the heads of the lower riveting punches are upward;
the extended upper riveting punch working section of the upper riveting punch 2 is of a cylindrical spherical structure with a concave head; the length of the upper riveting punching working section is larger than the depth of the 5 stepped holes of the steel back, and the diameter of the upper riveting punching working section is smaller than the diameter of the 5 stepped holes of the steel back;
the extended lower riveting punch working section of the lower riveting punch 3 is cylindrical, and the head part of the lower riveting punch is a plane; the length of the lower riveting punching working section is larger than the depth of the through hole of the friction body 8, and the diameter of the lower riveting punching working section is smaller than that of the through hole of the friction body 8.
N upper fixing plate stepped through holes are formed in the thickness direction of the upper fixing plate 1 according to the riveting positions of the N friction body assemblies; the fixing section of the upper riveting punch 2 is a stepped shaft, is arranged in a stepped through hole of the upper fixing plate and is in interference fit with the stepped through hole, and the upper surface of the upper riveting punch is flush with the upper surface of the upper fixing plate 1;
n lower fixing plate stepped through holes are formed in the thickness direction of the lower fixing plate 4 according to the riveting positions of the N friction body assemblies; the fixed section of lower riveting punch 3 be the step axle, install in lower fixed plate ladder through-hole interference fit, the lower surface is parallel and level with lower fixed plate 4 lower surface.
The upper riveting punch 2 and the lower riveting punch 3 are made of hard die steel.
The upper fixing plate 1 and the lower fixing plate 4 are made of high-strength alloy steel.
The friction body 8 and the back plate 7 are sintered into a friction block; a gasket 6 is arranged between the friction block and the steel back 5 and is riveted through a rivet 9.
The rivet 9 is made of stainless steel.
According to the technical scheme provided by the utility model, the rivet pressing and riveting tool for the train brake pad provided by the embodiment of the utility model is easy to process and operate; the riveting of the rivet is convenient, and the riveting efficiency of the brake pad is improved; the riveting process is safer, and the damage of the riveting machine to the friction body is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 3 is a schematic top view of a lower fixing plate of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a first station of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 5 is a schematic sectional view of a first station of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a second station of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 7 is a schematic sectional view of a second station of the rivet pressing and riveting tool for train brake pads according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a third station of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention in a front view;
fig. 9 is a schematic cross-sectional structural view of a third station of a rivet pressing and riveting tool for a train brake pad according to an embodiment of the present invention;
fig. 10 is a schematic perspective view of a formed riveted brake pad of the rivet pressing tool for train brake pads according to an embodiment of the present invention;
fig. 11 is a schematic side view of a formed riveted brake pad of the rivet pressing tool for train brake pads according to an embodiment of the present invention;
fig. 12 is a schematic back structure view of the formed riveted brake pad of the rivet pressing and riveting tool for train brake pads according to the embodiment of the present invention.
Description of reference numerals:
1. an upper fixing plate; 2. riveting and punching; 3. riveting and punching; 4. a lower fixing plate; 5. a dovetail steel backing; 6. a gasket; 7. A back plate; 8. a friction body; 9. and (4) riveting.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a rivet pressing and riveting tool for train brake pads is used for riveting N friction bodies 8 on a steel backing 5, specifically, the friction bodies 8 and a back plate 7 are sintered into friction blocks; and a gasket 6 is arranged between the friction block steel backs 5 and is riveted through a rivet 9, and the rivet 9 is made of stainless steel.
The rivet pressing and riveting tool for the train brake pad structurally comprises an upper fixing plate 1, a lower fixing plate 4, N upper riveting punches 2 and N lower riveting punches 3; it will be appreciated by those skilled in the art that in the configuration shown in fig. 1 to 3, N is set to 15 for convenience of illustration, but in practice the specific value of N may be determined as required.
The N upper riveting punches 2 are fixed below the upper fixing plate 1 according to the riveting positions of the N friction body assemblies, and the heads of the upper riveting punches are downward; the upper riveting punch 2 comprises an upper riveting punch fixing section fixedly connected with the upper fixing plate 1 and an upper riveting punch working section extending downwards; the extended upper riveting punch working section of the upper riveting punch 2 is of a cylindrical spherical structure with a concave head; the length of the upper riveting punching working section is larger than the depth of the 5 stepped holes of the steel back, and the diameter of the upper riveting punching working section is smaller than the diameter of the 5 stepped holes of the steel back; specifically, N upper fixing plate stepped through holes are formed in the thickness direction of the upper fixing plate 1 according to riveting positions of N friction body assemblies; the fixing section of the upper riveting punch 2 is a stepped shaft and is arranged in a stepped through hole of the upper fixing plate in an interference fit mode, and the upper surface of the fixing section is flush with the upper surface of the upper fixing plate 1.
The N lower riveting punches 3 are fixed above the lower fixing plate 4 according to the riveting positions of the N friction body assemblies, and the heads of the lower riveting punches are upward; the lower riveting punch 3 comprises a lower riveting punch fixing section fixedly connected with the lower fixing plate 4 and a lower riveting punch working section extending upwards; the extended lower riveting punch working section of the lower riveting punch 3 is cylindrical, and the head part of the lower riveting punch is a plane; the length of the lower riveting punching working section is larger than the depth of the through hole of the friction body 8, and the diameter of the lower riveting punching working section is smaller than that of the through hole of the friction body 8. N lower fixing plate stepped through holes are formed in the thickness direction of the lower fixing plate 4 according to the riveting positions of the N friction body assemblies; the fixed section of lower riveting punch 3 be the step axle, install in lower fixed plate ladder through-hole interference fit, the lower surface is parallel and level with lower fixed plate 4 lower surface.
In this example, the upper punch 2 and the lower punch 3 are both made of hard die steel, such as Cr12MoV, 40Cr, 30CrMnSi, 40CrMo, and the like.
In this example, the upper fixing plate 1 and the lower fixing plate 4 are made of high-strength alloy steel, such as Q420, Q460, Q500, Q550, Q620, and Q690.
The working principle is as follows: the upper riveting tool formed by assembling the upper fixing plate 1 and the upper riveting punch 2 is fixed on the upper pressing head of the press, and the lower riveting tool formed by assembling the lower fixing plate 4 and the lower riveting punch 3 is fixed on the lower pressing head of the press. As shown in fig. 4 and 5, the friction block, the gasket 6 and the steel back 5 formed by sintering the friction body 8, the friction body 8 and the back plate 7 are sequentially stacked, the rivet cap of the rivet 9 is placed on the protruding plane of the lower rivet punch 3, and the rivet rod of the rivet 9 sequentially penetrates through the friction block, the gasket 6 and the steel back 5 formed by sintering the friction body 8 and the back plate 7. And controlling the press, and pressing the upper pressing head by the upper pressing head as shown in figures 6 and 7 until the position of figures 8 and 9 is pressed, and finishing the riveting process. Fig. 10-12 are schematic views of the brake pad after riveting.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a frock is riveted with rivet pressure to train brake lining for rivet N friction member (8) on steel backing (5), its characterized in that: comprises an upper fixing plate (1), a lower fixing plate (4), N upper riveting punches (2) and N lower riveting punches (3);
the N upper riveting punches (2) are fixed below the upper fixing plate (1) according to the riveting positions of the N friction body assemblies, and the heads of the upper riveting punches are downward; the N lower riveting punches (3) are fixed above the lower fixing plate (4) according to the riveting positions of the N friction body assemblies, and the heads of the lower riveting punches are upward;
the extended upper riveting punch working section of the upper riveting punch (2) is of a cylindrical spherical structure with a concave head; the length of the upper riveting punching working section is larger than the depth of the stepped hole of the steel back (5), and the diameter of the upper riveting punching working section is smaller than that of the stepped hole of the steel back (5);
the extended lower riveting punch working section of the lower riveting punch (3) is cylindrical, and the head part of the lower riveting punch working section is a plane; the length of the lower riveting punching working section is larger than the depth of the through hole of the friction body (8), and the diameter of the lower riveting punching working section is smaller than that of the through hole of the friction body (8).
2. The rivet pressing and riveting tool for the train brake pad according to claim 1, wherein N stepped through holes of the upper fixing plate are formed in the thickness direction of the upper fixing plate (1) according to the riveting positions of N friction body assemblies; the fixing section of the upper riveting punch (2) is a stepped shaft, is arranged in a stepped through hole of the upper fixing plate and is in interference fit with the stepped through hole, and the upper surface of the upper riveting punch is flush with the upper surface of the upper fixing plate (1);
n lower fixing plate stepped through holes are formed in the thickness direction of the lower fixing plate (4) according to the riveting positions of the N friction body assemblies; the fixing section of the lower riveting punch (3) is a step shaft, is arranged in a stepped through hole of the lower fixing plate in an interference fit mode, and the lower surface of the lower riveting punch is flush with the lower surface of the lower fixing plate (4).
3. The train brake pad rivet pressing tool according to claim 1 or 2, wherein the upper riveting punch (2) and the lower riveting punch (3) are both made of hard die steel.
4. The rivet pressing and riveting tool for the train brake pad according to claim 1 or 2, characterized in that the upper fixing plate (1) and the lower fixing plate (4) are both made of high-strength alloy steel.
5. The train brake pad rivet pressing tool according to claim 1 or 2, wherein the friction body (8) and the back plate (7) are sintered into a friction block; a gasket (6) is arranged between the friction block and the steel back (5) and is riveted through a rivet (9).
6. The rivet pressing tool for the train brake pad according to claim 5, characterized in that the rivet (9) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921492910.0U CN210969998U (en) | 2019-09-09 | 2019-09-09 | Rivet pressing and riveting tool for train brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921492910.0U CN210969998U (en) | 2019-09-09 | 2019-09-09 | Rivet pressing and riveting tool for train brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210969998U true CN210969998U (en) | 2020-07-10 |
Family
ID=71456225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921492910.0U Active CN210969998U (en) | 2019-09-09 | 2019-09-09 | Rivet pressing and riveting tool for train brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210969998U (en) |
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2019
- 2019-09-09 CN CN201921492910.0U patent/CN210969998U/en active Active
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