A press riveting apparatus for brake shoes

Abstract

The utility model discloses a kind of brake shoe is pressed into and is equipped with equipment, including base;Operation platform is fixed in the right side of base top;Hydraulic tank is fixed in the left side of base top.The utility model is through the design of mechanical linkage, first the sleeve body area of brake shoe is limited to sleeve, to this brake shoe is positioned, then through the use of worm, so that top sleeve cooperation stop sleeve will the brake shoe after positioning be position fixed, then through the use of hydraulic cylinder, so that the pressing plate will bearing bush be pressed into the inside of brake shoe sleeve body, operation mode is convenient, not only reduce the working intensity and difficulty of staff, also ensure the accuracy of brake shoe and bearing bush assembly.Through the design of mechanical simplification, when top sleeve and stop sleeve will the brake shoe after positioning be position fixed, staff is rotated rotating plate, so that clamping groove is stuck to the outside of special-shaped rod, and then the state of top sleeve displacement is locked, ensure the stability of brake shoe position fixation.

Description

Technical Field

[0001] This utility model relates to the field of riveting device technology, specifically a riveting device for brake shoes. Background Technology

[0002] The brake shoe is a key component of a drum brake, its main function being to work with the brake drum to achieve the vehicle's braking function. The brake shoe contacts the brake drum through friction, converting the vehicle's kinetic energy into heat energy, thereby slowing down or stopping the vehicle. It must withstand the actuator thrust, the normal force and tangential force of the brake drum to ensure braking efficiency.

[0003] During the manufacturing process of brake shoes, the bearing bush needs to be pressed into the brake shoe sleeve. Since the bearing bush and brake shoe sleeve area are assembled using an interference fit, existing technology uses manual hammering to assemble the bearing bush and brake shoe sleeve area. This operation is time-consuming and labor-intensive, increasing the workload and difficulty for workers, and also affecting the accuracy of the brake shoe and bearing bush assembly, thus impacting the product assembly quality. Therefore, this utility model designs a brake shoe press-riveting device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a brake shoe pressing and riveting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brake shoe riveting device, comprising a base; an operating platform fixedly disposed on the right side of the top of the base; a hydraulic tank fixedly disposed on the left side of the top of the base; a hydraulic pump fixedly installed on the top of the hydraulic tank; a bracket fixedly disposed on the top of the operating platform, and a hydraulic cylinder fixedly disposed on the top of the bracket, the hydraulic cylinder being connected to the hydraulic pump via a pipeline; a limiting component assembled on the outside of the operating platform, the limiting component being able to fix the position of the brake shoe placed on the top of the operating platform; and a clamping component assembled on the bottom of the hydraulic cylinder, the clamping component being able to move along the longitudinal direction of the bracket following the head end of the hydraulic cylinder.

[0006] Preferably, the head end of the hydraulic cylinder slides through the bracket, and the limiting component includes a limiting sleeve fixed to the top of the operating table, and a brake shoe is fitted on the outside of the limiting sleeve; a stop sleeve fixedly installed at the rear right side of the top of the operating table; and an irregularly shaped rod rotatably disposed at the bottom of the operating table, and a top sleeve is fixedly fitted on the outside of the irregularly shaped rod, and the irregularly shaped rod slides through the operating table.

[0007] Preferably, a worm gear is fixedly sleeved on the outside of the irregular rod, and a worm is rotated to the left side of the bottom of the operating table, the worm meshing with the teeth of the worm gear.

[0008] Preferably, the irregular rod, the limiting sleeve, and the hydraulic cylinder are designed to correspond one-to-one, and the axis of the irregular rod is coaxial with the axis of the limiting sleeve and the output end of the hydraulic cylinder.

[0009] Preferably, the clamping assembly includes a top plate fixed to the bottom of the hydraulic cylinder output end, and a bearing is provided at the bottom of the top plate; and a top pin fixedly installed at the middle of the bottom of the top plate.

[0010] Preferably, the axis of the top pin is coaxial with the axis of the top plate, and the axis of the top plate is coaxial with the axis of the hydraulic cylinder.

[0011] Preferably, a locking component is provided on the outside of the retaining sleeve, which can lock the state after the top sleeve is displaced. The locking component includes a rotating plate that is rotatably sleeved on the upper part of the outside of the retaining sleeve, and a slot integrally provided inside the rotating plate.

[0012] Preferably, a thin-film pressure sensor is fixedly mounted on the top of the limiting sleeve, and a controller is fixedly mounted on the outer wall of the bracket. The controller is connected to the liquid pump and the thin-film pressure sensor via wires.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through a mechanical linkage design, first places the brake shoe's sleeve area onto the limiting sleeve to position the brake shoe. Then, through the use of a worm gear, the top sleeve, in conjunction with the stop sleeve, fixes the positioned brake shoe in place. Finally, through the use of a hydraulic cylinder, the pressure plate rivets the bearing bush into the interior of the brake shoe sleeve. The operation is convenient, not only reducing the workload and difficulty for workers, but also ensuring the accuracy of the assembly of the brake shoe and bearing bush.

[0014] 2. Through a simplified mechanical design, this utility model allows the top sleeve and the retaining sleeve to fix the position of the brake shoe after positioning. The operator can then rotate the rotating plate to lock the outside of the irregular rod in place by rotating the plate, thereby locking the position of the top sleeve after displacement. Thus, the stability of the brake shoe position is ensured by using the device in this application. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a front perspective view of a brake shoe pressing and riveting device according to the present invention; Figure 2This is a three-dimensional view of the internal structure of the limiting sleeve; Figure 3 This is a bottom-view perspective of the control panel; Figure 4 This is an exploded three-dimensional view of the brake shoe and bearing.

[0017] The attached diagram lists the components represented by each number as follows: 1-Base, 2-Operating table, 3-Hydraulic tank, 4-Liquid pump, 5-Bracket, 6-Hydraulic cylinder, 7-Limit assembly, 8-Clamping assembly, 701-Limit sleeve, 702-Brake shoe, 703-Side sleeve, 704-Irregular rod, 705-Top sleeve, 9-Worm gear, 10-Worm, 801-Top plate, 802-Bearing bush, 803-Top pin, 11-Rotating plate, 12-Slot, 13-Thin film pressure sensor, 14-Controller. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] A preferred embodiment of the brake shoe riveting device provided by this utility model is, for example... Figures 1 to 4 As shown: A brake shoe riveting device includes a base 1; an operating platform 2 fixed on the top right side of the base 1; a hydraulic tank 3 fixed on the top left side of the base 1; a hydraulic pump 4 fixedly installed on the top of the hydraulic tank 3; a bracket 5 fixed on the top of the operating platform 2, and a hydraulic cylinder 6 fixed on the top of the bracket 5, the hydraulic cylinder 6 being connected to the hydraulic pump 4 via a pipe; and a limiting component 7 assembled on the outside of the operating platform 2, the limiting component 7 fixing the position of the brake shoe 702 placed on the top of the operating platform 2.

[0020] The head end of the hydraulic cylinder 6 slides through the bracket 5. The limiting component 7 includes a limiting sleeve 701 fixed on the top of the operating table 2, and a brake shoe 702 is fitted on the outside of the limiting sleeve 701; a retaining sleeve 703 fixedly installed on the rear right side of the top of the operating table 2; a rotatable irregular rod 704 at the bottom of the operating table 2, and a top sleeve 705 is fixedly fitted on the outside of the irregular rod 704. The irregular rod 704 slides through the operating table 2, and a worm gear 9 is fixedly fitted on the outside of the irregular rod 704. A worm 10 is connected to the bottom left side of the operating table 2. The worm 10 meshes with the worm gear 9. The irregular rod 704, the limiting sleeve 701, and the hydraulic cylinder 6 are designed to correspond to each other. The axis of the irregular rod 704 is coaxial with the axis of the limiting sleeve 701 and the output end of the hydraulic cylinder 6.

[0021] It should be noted that the existing method of riveting brake shoes and bearing shells involves manual hammering for assembly, which not only increases the difficulty and intensity of the workers' work, but also affects the quality of the assembly of brake shoes and bearing shells.

[0022] In this embodiment, the operator first inserts the bottom of the sleeve area of ​​the brake shoe 702 into the limiting sleeve 701, then fits the rear end face of the brake shoe 702 with the retaining sleeve 703. The operator then rotates the worm gear 10, which controls the worm wheel 9 to rotate in conjunction with the irregular rod 704. The irregular rod 704 drives the top sleeve 705 to move along the direction of the brake shoe 702, thereby causing the top sleeve 705 to exert a pressing force on the front end face of the brake shoe 702. In this way, the position of the positioned brake shoe 702 is fixed.

[0023] In a further preferred embodiment of this utility model, a clamping assembly 8 is assembled at the bottom of the hydraulic cylinder 6. The clamping assembly 8 moves along the longitudinal direction of the bracket 5 following the head end of the hydraulic cylinder 6. The clamping assembly 8 includes a top plate 801 fixedly disposed at the bottom of the output end of the hydraulic cylinder 6, and a bearing bush 802 is provided at the bottom of the top plate 801; a top pin 803 is fixedly installed at the middle of the bottom of the top plate 801, and the axis of the top pin 803 is coaxial with the axis of the top plate 801, and the axis of the top plate 801 is coaxial with the axis of the hydraulic cylinder 6.

[0024] In this embodiment, the operator places the bearing bush 802 on top of the brake shoe 702 sleeve area, then turns on the hydraulic pump 4. The hydraulic pump 4 discharges the oil in the hydraulic tank 3 into the hydraulic cylinder 6, thereby causing the hydraulic cylinder 6 to drive the top plate 801 and the top pin 803 to move along the direction of the brake shoe 702 until the top plate 801 and the top of the bearing bush 802 are tightly fitted together, and the top pin 803 moves into the inside of the bearing bush 802. At this time, the operator releases the bearing bush 802, thereby causing the hydraulic cylinder 6 to control the top plate 801 to push the bearing bush 802, pressing the bearing bush 802 into the inside of the brake shoe 702 sleeve. Example 2

[0025] Based on Embodiment 1, a preferred embodiment of the brake shoe press-fitting device provided by this utility model is as follows: Figures 1 to 4 As shown: A locking component is provided on the outside of the retaining sleeve 703. The locking component can lock the state after the top sleeve 705 is displaced. The locking component includes a rotating plate 11 that is rotatably sleeved on the upper part of the outside of the retaining sleeve 703; a slot 12 integrally set inside the rotating plate 11; a thin film pressure sensor 13 is fixedly installed on the top of the limiting sleeve 701; a controller 14 is fixedly installed on the outer wall of the bracket 5; the controller 14 is connected to the liquid pump 4 and the thin film pressure sensor 13 through wires.

[0026] In this embodiment, after the top sleeve 705 applies pressure to the brake shoe 702, the operator first rotates the rotating plate 11 to lock the outside of the shaped rod 704 in the slot 12 inside the rotating plate 11, thereby locking the state of the top sleeve 705 after displacement. When the top pin 803 applies pressure to the diaphragm pressure sensor 13, the hydraulic pump 4 stops working, thereby controlling the stroke of the bearing 802 being riveted into the body of the brake shoe 702.

[0027] In summary, this application utilizes a mechanical linkage design to first fix the brake shoe in position on top of the control panel, and then uses a hydraulic cylinder to press and rivet the bearing bush into the brake shoe sleeve body. This reduces the workload and difficulty for operators and ensures the precision of the brake shoe and bearing bush assembly. The simplified mechanical locking design ensures the stability of the brake shoe's fixed position.

Claims

1. A press-fitting device for brake shoes, characterized in that, include: Base (1); operating table (2) fixed on the top right side of the base (1); Hydraulic tank (3) fixed on the top left side of the base (1); A liquid pump (4) is fixedly installed on the top of the hydraulic tank (3); A bracket (5) is fixed on the top of the operating table (2), and a hydraulic cylinder (6) is fixed on the top of the bracket (5). The hydraulic cylinder (6) is connected to the hydraulic pump (4) through a pipe. A limiting component (7) is mounted on the outside of the operating table (2), which can fix the position of the brake shoe (702) placed on the top of the operating table (2); The clamping assembly (8) is mounted at the bottom of the hydraulic cylinder (6), and the clamping assembly (8) moves along the longitudinal direction of the bracket (5) following the head end of the hydraulic cylinder (6).

2. The brake shoe pressing and riveting device according to claim 1, characterized in that: The head end of the hydraulic cylinder (6) slides through the bracket (5), and the limiting component (7) includes: A limiting sleeve (701) is fixedly installed on the top of the operating table (2), and a brake shoe (702) is fitted on the outside of the limiting sleeve (701). A retainer (703) is fixedly installed at the rear right side of the top of the operating table (2). Rotate the irregular rod (704) at the bottom of the operating table (2), and the irregular rod (704) is fixedly sleeved with a top sleeve (705), and the irregular rod (704) slides through the operating table (2).

3. The brake shoe pressing and riveting device according to claim 2, characterized in that: The shaped rod (704) is externally fitted with a worm gear (9), and a worm (10) is connected to the bottom left side of the operating table (2), and the worm (10) meshes with the teeth of the worm gear (9).

4. The brake shoe pressing and riveting device according to claim 3, characterized in that: The irregular rod (704) is designed to correspond one-to-one with the limiting sleeve (701) and the hydraulic cylinder (6). The axis of the irregular rod (704) is the same as the axis of the output end of the limiting sleeve (701) and the hydraulic cylinder (6).

5. The brake shoe pressing and riveting device according to claim 1, characterized in that: The clamping assembly (8) includes: A top plate (801) is fixed at the bottom of the output end of the hydraulic cylinder (6), and a bearing (802) is provided at the bottom of the top plate (801). A top pin (803) is fixedly installed at the bottom center of the top plate (801).

6. The brake shoe pressing and riveting device according to claim 5, characterized in that: The axis of the top pin (803) is coaxial with the axis of the top plate (801), and the axis of the top plate (801) is coaxial with the axis of the hydraulic cylinder (6).

7. The brake shoe pressing and riveting device according to claim 2, characterized in that: A locking component is provided on the outside of the retaining sleeve (703). The locking component can lock the state of the top sleeve (705) after displacement. The locking component includes: Rotary plate (11) is mounted on the upper part of the outer side of the retaining sleeve (703); The slot (12) is integrally set inside the rotating plate (11).

8. The brake shoe pressing and riveting device according to claim 2, characterized in that: A thin-film pressure sensor (13) is fixedly mounted on the top of the limiting sleeve (701), and a controller (14) is fixedly mounted on the outer wall of the bracket (5). The controller (14) is connected to the liquid pump (4) and the thin-film pressure sensor (13) via wires.

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