Auxiliary welding tool for brake shoe

Abstract

The utility model relates to a brake shoe auxiliary welding tool which comprises a tool shell, a first arc-shaped positioning plate and a second arc-shaped positioning plate are arranged on the two sides of the top of the tool shell, and positioning assemblies are arranged on the inner side face of the first arc-shaped positioning plate and the outer side face of the second arc-shaped positioning plate. The positioning assemblies can be arranged on the surfaces of the first arc-shaped positioning plate and the second arc-shaped positioning plate, the double arc-shaped positioning plates are used for positioning the brake shoe, the two ends of the brake shoe can be positioned at the same time, the positioning effect is improved, and when the brake shoes of different sizes are clamped and positioned, the positioning efficiency is improved. The arc-shaped air bag layer on the surface of the double-arc-shaped positioning plate can be used for filling the gap between the double-arc-shaped positioning plate and the brake shoe from the two ends of the brake shoe at the same time, and positioning and clamping of the brake shoes of different sizes are achieved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary welding fixtures, specifically an auxiliary welding fixture for brake shoes. Background Technology

[0002] The manufacturing of brake shoes generally includes several parts: blanking, stamping, welding, and finishing, with welding being one of the key processes. As a crucial step between stamping and finishing, welding significantly impacts the final product's precision. During welding, an arc-shaped plate and two reinforcing ribs need to be joined together, and precise positioning is critical, as it determines the machining accuracy in subsequent finishing processes.

[0003] According to publicly available patent 201721308621.1, an auxiliary welding fixture for brake shoes, it includes a base and a column fixed on the base. The column is equipped with a positioning device, a power device, and a rotating device. The positioning device includes a left bearing installed in a bearing hole in the column, a right bearing installed in a bearing hole in the column, a bushing passing through the left and right bearings in sequence, a left positioning plate fixed on the bushing, a rotating shaft disposed in the bushing, a positioning disc fitted on the rotating shaft, and a right positioning plate fixed to one end of the rotating shaft. The power device includes a motor disposed on the base, a reducer connected to the output shaft of the motor, a drive wheel disposed on the output shaft of the reducer, a driven wheel fixedly mounted on the bushing, and a transmission belt connecting the drive wheel and the driven wheel. The rotating device includes a vertical plate fixed on the base, a rotating disc fixedly mounted on the vertical plate, and a cylinder fixedly mounted on the rotating disc.

[0004] However, in practice, traditional brake shoe auxiliary welding fixtures rely on a locating disc custom-sized to fit the brake shoe dimensions. This custom-fitting method limits the positioning of brake shoes to a fixed size, resulting in poor positioning when welding brake shoes of different sizes. Furthermore, only one brake shoe can be positioned and welded at a time, leading to low welding efficiency. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide an auxiliary welding fixture for brake shoes. This solves the problem that in the current traditional auxiliary welding fixture for brake shoes, the size of the positioning plate is customized according to the size of the brake shoe during the welding process. This customized size method means that the positioning plate can only limit the position of brake shoes of a fixed size. When welding brake shoes of different sizes, the positioning effect of the brake shoes is poor. Moreover, during the welding process, only one brake shoe can be positioned and welded at a time, resulting in low welding efficiency for brake shoes.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a brake shoe auxiliary welding fixture, including a fixture housing, wherein a first arc-shaped positioning plate and a second arc-shaped positioning plate are provided on both sides of the top of the fixture housing, and positioning components are provided on the inner side of the first arc-shaped positioning plate and the outer side of the second arc-shaped positioning plate.

[0007] Preferably, the positioning component includes a first arc-shaped groove, a first arc-shaped airbag layer, a second arc-shaped groove, a second arc-shaped airbag layer, a mounting groove, a micro air pump, a first air tube, and a second air tube.

[0008] Preferably, the first arc-shaped groove and the second arc-shaped groove are respectively formed on the inner side of the first arc-shaped positioning plate and the outer side of the second arc-shaped positioning plate, and the first arc-shaped airbag layer and the second arc-shaped airbag layer are respectively installed inside the first arc-shaped groove and the second arc-shaped groove.

[0009] Preferably, the outer side of the first arc-shaped positioning plate and the inner side of the second arc-shaped positioning plate are provided with mounting grooves, and a miniature air pump is installed inside the mounting grooves.

[0010] Preferably, the micro air pump is connected to a first air pipe and a second air pipe at both ends, and the end of the first air pipe away from the micro air pump passes through the first arc-shaped positioning plate and the second arc-shaped positioning plate and is connected to the first arc-shaped airbag layer and the second arc-shaped airbag layer.

[0011] Preferably, a motor is mounted on the side of the tooling housing, and a threaded rod is connected to one side of the motor. The end of the threaded rod away from the motor extends into the tooling housing, and the end of the threaded rod inside the tooling housing passes through two moving blocks. The threaded holes in the two moving blocks are connected to the opposite threads on both sides of the surface of the threaded rod.

[0012] Preferably, the top of the movable block passes through a square hole opened on the surface of the tooling housing and is fixed to the first arc-shaped positioning plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model combines a tooling housing, an arc-shaped positioning plate, and a positioning component. A positioning component can be installed on the surfaces of the first and second arc-shaped positioning plates. The double-arc positioning plates are used to position the brake shoe, enabling simultaneous positioning of both ends of the brake shoe, thus improving the positioning effect. Furthermore, when clamping and positioning brake shoes of different sizes, the arc-shaped airbag layer on the surface of the double-arc positioning plates can simultaneously fill the gap between the double-arc positioning plates and the brake shoe from both ends, achieving positioning and clamping of brake shoes of different sizes. This solves the technical problem of current traditional brake shoe auxiliary welding tooling, where the positioning plate size is customized according to the brake shoe size during welding. This customized size method can only limit the positioning of brake shoes of a fixed size, resulting in poor positioning effect when welding brake shoes of different sizes.

[0015] 2. This utility model, through the combination of a threaded rod, a moving block, and a connecting block, allows the threaded rod to drive two moving blocks, which in turn drive two first arc-shaped positioning plates to move simultaneously, thereby clamping and positioning two brake shoes at the same time. This achieves positioning of double brake shoes, increases the number of brake shoes that can be clamped, and enables welding of multiple brake shoes at once. It solves the technical problem that in the process of welding brake shoes, only one brake shoe can be positioned and welded at a time, resulting in low welding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the tooling housing of this utility model.

[0019] In the figure: 1. Tooling housing; 2. First arc-shaped positioning plate; 201. First arc-shaped groove; 202. First arc-shaped airbag layer; 203. Moving block; 204. Second arc-shaped positioning plate; 205. Second arc-shaped groove; 206. Second arc-shaped airbag layer; 207. Mounting groove; 208. Miniature air pump; 209. First air pipe; 210. Second air pipe; 3. Square hole; 301. Motor; 302. Threaded rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: An auxiliary welding fixture for brake shoes, see [link / reference] Figures 1 to 3The fixture includes a tooling housing 1. A first arc-shaped positioning plate 2 and a second arc-shaped positioning plate 204 are provided on both sides of the top of the tooling housing 1. Positioning components are provided on the inner side of the first arc-shaped positioning plate 2 and the outer side of the second arc-shaped positioning plate 204. The brake shoe is first placed between the first arc-shaped positioning plate 2 and the second arc-shaped positioning plate 204. After placement, when it is necessary to clamp brake shoes of different sizes, a miniature air pump 208 inside the first arc-shaped positioning plate 2 and the second arc-shaped positioning plate 204 can be opened. Gas is then input into the first arc-shaped airbag layer 202 and the second arc-shaped airbag via the miniature air pump 208. Within layer 206, the arc-shaped airbag layer on the surface of the double-arc positioning plate can be used simultaneously from both ends of the brake shoe to fill the gap between the double-arc positioning plate and the brake shoe, thus achieving positioning and clamping of brake shoes of different sizes. This solves the technical problem of the current traditional brake shoe auxiliary welding fixture, where the size of the positioning plate is customized according to the size of the brake shoe during the welding process. This customized size method can only satisfy the limitation of brake shoes of a fixed size, and the positioning effect of the brake shoe is poor when welding brake shoes of different sizes.

[0022] For details, see Figure 1 and Figure 2 The positioning component includes a first arc-shaped groove 201, a first arc-shaped airbag layer 202, a second arc-shaped groove 205, a second arc-shaped airbag layer 206, a mounting groove 207, a micro air pump 208, a first air tube 209, and a second air tube 210.

[0023] Further, see Figure 2 The first arc-shaped groove 201 and the second arc-shaped groove 205 are respectively opened on the inner side of the first arc-shaped positioning plate 2 and the outer side of the second arc-shaped positioning plate 204. The first arc-shaped airbag layer 202 and the second arc-shaped airbag layer 206 are respectively installed inside the first arc-shaped groove 201 and the second arc-shaped groove 205.

[0024] It is worth noting that, see Figure 2 The outer side of the first arc-shaped positioning plate 2 and the inner side of the second arc-shaped positioning plate 204 are both provided with mounting grooves 207, and a miniature air pump 208 is installed inside the mounting grooves 207.

[0025] It is worth noting that, see Figure 2 The micro air pump 208 has a first air tube 209 and a second air tube 210 connected to its two ends respectively. The end of the first air tube 209 away from the micro air pump 208 passes through the first arc-shaped positioning plate 2 and the second arc-shaped positioning plate 204 and is connected to the first arc-shaped airbag layer 202 and the second arc-shaped airbag layer 206.

[0026] It is worth mentioning that, see Figure 3A motor 301 is mounted on the side of the tooling housing 1. A threaded rod 302 is connected to one side of the motor 301. The end of the threaded rod 302 away from the motor 301 extends into the tooling housing 1. The end of the threaded rod 302 inside the tooling housing 1 passes through two moving blocks 203. The threaded holes in the two moving blocks 203 are connected to the opposite threads on both sides of the surface of the threaded rod 302. Because multiple first arc-shaped positioning plates 2 and second arc-shaped positioning plates 204 are provided on the top of the tooling housing 1, multiple brake shoes can be placed on the multiple first arc-shaped positioning plates 2 and second arc-shaped positioning plates 204. After the positioning plates 204 are placed, the motor 301 is turned on. The motor 301 drives the threaded rod 302. Since the threaded rod 302 has opposite threads on its surface, it can drive the two moving blocks 203 to move the first arc-shaped positioning plate 2 at the same time. Together with the second arc-shaped positioning plate 204 fixed on the top of the tooling housing 1, it realizes the positioning and clamping of multiple brake shoes. This solves the technical problem that only one brake shoe can be positioned and welded at a time during the welding process of brake shoes, resulting in low welding efficiency.

[0027] It is worth emphasizing that, see Figure 3 The top of the movable block 203 passes through the square hole 3 opened on the surface of the tool housing 1 and is fixed to the first arc-shaped positioning plate 2.

[0028] When using a brake shoe auxiliary welding fixture, the brake shoe is first placed between the first arc-shaped positioning plate 2 and the second arc-shaped positioning plate 204. After placement, when it is necessary to clamp brake shoes of different sizes, the miniature air pump 208 inside the first arc-shaped positioning plate 2 and the second arc-shaped positioning plate 204 can be opened. The miniature air pump 208 inputs gas into the first arc-shaped airbag layer 202 and the second arc-shaped airbag layer 206. The arc-shaped airbag layers on the surface of the double arc-shaped positioning plates can simultaneously fill the gap between the double arc-shaped positioning plates and the brake shoe from both ends of the brake shoe. The system enables the positioning and clamping of brake shoes of different sizes. Because multiple first arc-shaped positioning plates 2 and second arc-shaped positioning plates 204 are provided on the top of the tooling housing 1, multiple brake shoes can be placed between the multiple first arc-shaped positioning plates 2 and second arc-shaped positioning plates 204. After placement, the motor 301 is turned on, and the motor 301 drives the threaded rod 302. Since the threaded rod 302 has opposite threads on its surface, it can drive two moving blocks 203 to move the first arc-shaped positioning plates 2 at the same time. In conjunction with the second arc-shaped positioning plates 204 fixed on the top of the tooling housing 1, the positioning and clamping of multiple brake shoes is achieved.

[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A brake shoe auxiliary welding fixture, comprising a fixture housing (1), characterized in that, The tool housing (1) is provided with a first arc-shaped positioning plate (2) and a second arc-shaped positioning plate (204) on both sides of the top. The inner side of the first arc-shaped positioning plate (2) and the outer side of the second arc-shaped positioning plate (204) are provided with positioning components.

2. The auxiliary welding fixture for brake shoes as described in claim 1, characterized in that, The positioning component includes a first arc-shaped groove (201), a first arc-shaped airbag layer (202), a second arc-shaped groove (205), a second arc-shaped airbag layer (206), a mounting groove (207), a micro air pump (208), a first air tube (209), and a second air tube (210).

3. The auxiliary welding fixture for brake shoes as described in claim 2, characterized in that, The first arc-shaped groove (201) and the second arc-shaped groove (205) are respectively opened on the inner side of the first arc-shaped positioning plate (2) and the outer side of the second arc-shaped positioning plate (204). The first arc-shaped groove (201) and the second arc-shaped groove (205) are respectively installed inside the first arc-shaped groove (201) and the second arc-shaped groove (205).

4. The auxiliary welding fixture for brake shoes as described in claim 1, characterized in that, The outer side of the first arc-shaped positioning plate (2) and the inner side of the second arc-shaped positioning plate (204) are provided with mounting grooves (207), and a micro air pump (208) is installed inside the mounting grooves (207).

5. The auxiliary welding fixture for brake shoes as described in claim 2, characterized in that, The micro air pump (208) is connected to a first air tube (209) and a second air tube (210) at both ends. The end of the first air tube (209) away from the micro air pump (208) passes through the first arc-shaped positioning plate (2) and the second arc-shaped positioning plate (204) and is connected to the first arc-shaped airbag layer (202) and the second arc-shaped airbag layer (206).

6. The auxiliary welding fixture for brake shoes as described in claim 1, characterized in that, A motor (301) is mounted on the side of the tool housing (1). A threaded rod (302) is connected to one side of the motor (301). The end of the threaded rod (302) away from the motor (301) extends into the tool housing (1). The end of the threaded rod (302) inside the tool housing (1) passes through two moving blocks (203). The threaded holes in the two moving blocks (203) are connected to the opposite threads on both sides of the surface of the threaded rod (302).

7. The auxiliary welding fixture for brake shoes as described in claim 6, characterized in that, The top of the movable block (203) passes through a square hole (3) opened on the surface of the tooling housing (1) and is fixed to the first arc-shaped positioning plate (2).

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