Friction plate heat treatment tool

Abstract

The utility model relates to the technical field of friction plate pressurizing equipment, and particularly discloses a friction plate heat treatment tool which comprises a base, a middle column and a first cover plate, the two ends of the middle column are connected with the base and the first cover plate respectively, and the other end of the middle column penetrates through the first cover plate and is connected with the first cover plate in a sliding mode. A first nut is connected to the middle column, a first compression spring is arranged between the first nut and the first cover plate, and the middle column is sleeved with the compression spring; the device further comprises at least two first guide rods connected with the first cover plate in a sliding mode, and the first guide rods are evenly arranged around the middle column at intervals. According to the utility model, the compression uniformity of the friction plate can be improved, and the damage rate of the friction plate is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of friction plate pressurization equipment, and more specifically, to a friction plate heat treatment fixture. Background Technology

[0002] After the brake friction pads are hot-pressed, they need to be placed in a high-temperature oven for further heat treatment to ensure complete internal curing of the friction material and improve its performance. However, since the friction material itself uses resin, rubber, etc. as binders, some larger annular friction pads may experience expansion, warping, or deformation during heating. Therefore, it is necessary to apply a certain pressure to fix the friction pads before heat treatment to reduce expansion, warping, and other deformations.

[0003] Some existing friction plate pressurization fixtures use multiple rods and springs for force adjustment, which makes it difficult to ensure that the force at each force point is the same. They also have problems with low space utilization and uneven pressure on the friction plate, making the friction plate prone to damage. Utility Model Content

[0004] The purpose of this invention is to provide a friction plate heat treatment fixture that can improve the uniformity of pressure on the friction plate and reduce the damage rate of the friction plate.

[0005] This utility model is achieved through the following technical solution: a friction plate heat treatment fixture, including a base, a central column and a first cover plate, the two ends of the central column are respectively connected to the base and the first cover plate, and the other end of the central column passes through the first cover plate and is slidably connected to it; a first nut is connected to the central column, and a first compression spring is provided between the first nut and the first cover plate, the compression spring being sleeved on the central column; it also includes at least two first guide rods slidably connected to the first cover plate, the first guide rods being evenly spaced around the central column.

[0006] Furthermore, it also includes a second cover plate, a second nut, and a second compression spring. The second cover plate is disposed above the first cover plate, and the central column passes through the second cover plate and is slidably connected to it. The second nut is threadedly connected to the central column, and the second compression spring abuts against the second nut and the second cover plate.

[0007] Furthermore, at least two second guide rods are connected between the base and the second cover plate, and one end of the second guide rod is slidably connected to the second cover plate; the second guide rods are evenly spaced around the central column.

[0008] Furthermore, the diameter of the second cover plate is larger than that of the first cover plate.

[0009] Furthermore, the first cover plate is provided with a first positioning protrusion that matches the size of the friction plate, and the second cover plate is provided with a second positioning protrusion.

[0010] Furthermore, the first positioning protrusion and the second positioning protrusion are arranged coaxially with the central column.

[0011] Furthermore, the flatness of the first cover plate and the base is less than 0.02 mm.

[0012] Furthermore, one end of the central column is threadedly connected to the base.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: This utility model is easy to assemble and disassemble, and can clamp multiple friction pad bodies at one time. The tooling can ensure that the synthetic brake pads do not slip or misalign during curing at high temperatures and that the force is uniform. The elasticity of the compression spring can be adjusted to ensure that the synthetic brake pads can be continuously compressed during expansion and contraction, thus eliminating potential safety hazards during the use of friction pads. It can also process multiple types of friction pad bodies at the same time, and has a wide range of applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the friction plate heat treatment fixture of this utility model when two types of friction plates are installed;

[0015] Figure 2 This is a bottom view of the friction plate heat treatment fixture of this utility model.

[0016] Reference numerals: 1-base, 2-central column, 3-first cover plate, 31-first positioning protrusion ring, 4-first nut, 5-first compression spring, 6-first guide rod, 7-second cover plate, 71-second positioning protrusion ring, 8-second nut, 9-second compression spring, 10-second guide rod, 11-friction plate body. Detailed Implementation

[0017] The following description, in conjunction with specific embodiments, provides further details. Figure 1-Figure 2As shown, this embodiment is a friction plate heat treatment fixture, including a base 1, a central column 2, and a first cover plate 3. The two ends of the central column 2 are connected to the base 1 and the first cover plate 3 respectively, and the other end of the central column 2 passes through the first cover plate 3 and is slidably connected to it. A first nut 4 is connected to the central column 2, and a first compression spring 5 is provided between the first nut 4 and the first cover plate 3. The compression spring is sleeved on the central column 2. It also includes at least two first guide rods 6 slidably connected to the first cover plate 3. The first guide rods 6 are evenly spaced around the central column 2. Specifically, multiple friction plate bodies 11 are stacked and pressed between the first cover plate 3 and the base 1. The first nut 4 abuts against the first compression spring 5. The first cover plate 3 can slide upward and squeeze the first compression spring 5, causing it to deform and increase the pressure. The first compression spring 5, which is located in the middle of the first cover plate 3, works with the first nut 4 to adjust the force. At the same time, combined with the first guide rod, it ensures the parallelism between the first cover plate 3 and the base 1, so that the multiple stacked friction plate bodies 11 are evenly compressed and are not prone to damage or sliding misalignment.

[0018] This embodiment also includes a second cover plate 7, a second nut 8, and a second compression spring 9. The second cover plate 7 is located above the first cover plate 3, and the central column 2 passes through the second cover plate 7 and is slidably connected to it. The second nut 8 is threadedly connected to the central column 2, and the second compression spring 9 abuts between the second nut 8 and the second cover plate 7. Specifically, in order to fully improve the space utilization, the second cover plate 7 is used for the friction plate body 11, which is larger in size. The friction plate body 11 is gradually stacked from the base 1 to contact the second cover plate 7, and the first cover plate 3 is located inside it. It can meet the heat treatment needs of multiple types of friction plates at one time.

[0019] like Figure 2 As shown, in order to improve the uniformity of pressure applied to the second cover plate 7, at least two second guide rods 10 are connected between the base 1 and the second cover plate 7 in this embodiment, and one end of the second guide rod 10 is slidably connected to the second cover plate 7; the second guide rods 10 are evenly spaced around the central column 2.

[0020] In addition, the diameter of the second cover plate 7 is larger than that of the first cover plate 3; the first cover plate 3 is provided with a first positioning protrusion 31 adapted to the size of the friction plate, and the second cover plate 7 is provided with a second positioning protrusion 71, so that the second cover plate 7 is used to press and fix the friction plate body 11 with a larger diameter, and the size of the first positioning protrusion 31 and the second positioning protrusion 71 is adapted to the friction plate body 11 that performs the corresponding function.

[0021] Even better, the first positioning protrusion 31 and the second positioning protrusion 71 are arranged coaxially with the central column 2, and the first cover plate 3 and the second cover plate 7 are both installed on the central column 2 to perform their functions. Their positions are adjusted by the first nut 4 and the second nut 8 respectively.

[0022] In this embodiment, the flatness of the first cover plate 3 and the base 1 is less than 0.02mm, which better improves the uniformity of force distribution when multiple friction pad bodies 11 are stacked.

[0023] To facilitate disassembly and assembly, one end of the central column 2 is connected to the base 1 by a thread.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat treatment fixture for friction plates, characterized in that: It includes a base (1), a central column (2) and a first cover plate (3). The two ends of the central column (2) are connected to the base (1) and the first cover plate (3) respectively, and the other end of the central column (2) passes through the first cover plate (3) and is slidably connected to it. A first nut (4) is connected to the central column (2), and a first compression spring (5) is provided between the first nut (4) and the first cover plate (3). The compression spring is sleeved on the central column (2). It also includes at least two first guide rods (6) that are slidably connected to the first cover plate (3), and the first guide rods (6) are evenly spaced around the central column (2).

2. The friction plate heat treatment fixture according to claim 1, characterized in that: It also includes a second cover plate (7), a second nut (8) and a second compression spring (9). The second cover plate (7) is located above the first cover plate (3), and the central column (2) passes through the second cover plate (7) and is slidably connected to it. The second nut (8) is threaded onto the central column (2), and the second compression spring (9) abuts between the second nut (8) and the second cover plate (7).

3. The friction plate heat treatment fixture according to claim 2, characterized in that: At least two second guide rods (10) are connected between the base (1) and the second cover plate (7), and one end of the second guide rod (10) is slidably connected to the second cover plate (7); The second guide rod (10) is arranged at uniform intervals around the central column (2).

4. The friction plate heat treatment fixture according to claim 3, characterized in that: The diameter of the second cover plate (7) is larger than that of the first cover plate (3).

5. The friction plate heat treatment fixture according to claim 4, characterized in that: The first cover plate (3) is provided with a first positioning protrusion (31) adapted to the size of the friction plate, and the second cover plate (7) is provided with a second positioning protrusion (71).

6. The friction plate heat treatment fixture according to claim 5, characterized in that: The first positioning protrusion (31) and the second positioning protrusion (71) are arranged coaxially with the central column (2).

7. The friction plate heat treatment fixture according to claim 1, characterized in that: The flatness of the first cover plate (3) and the base (1) is less than 0.02 mm.

8. The friction plate heat treatment fixture according to claim 1, characterized in that: One end of the central column (2) is threadedly connected to the base (1).

Images