Brake shoe turning device

Abstract

The utility model discloses a brake shoe turning machining device which comprises a machine shell, two fixing mechanisms which are symmetrically arranged and used for fixing a shoe block are arranged above the machine shell, two rotating mechanisms used for driving the fixing mechanisms to rotate are arranged on the machine shell, and the rotating mechanisms and the fixing mechanisms are arranged in a one-to-one correspondence mode. Through cooperation of the fixing mechanism, the rotating mechanism and the auxiliary mechanism, the shoe block can be clamped and fixed, meanwhile, the limiting effect is achieved through cooperation of the structural characteristics of the shoe block and the fixing mechanism, and therefore any electric equipment does not need to be adopted to drive a clamping plate to conduct clamping operation; furthermore, the problem that an electric wire connected with electric equipment is wound and knotted when the rotating mechanism drives the fixing mechanism and the shoe block fixed by the fixing mechanism to rotate is solved, so that the stability and the safety of the brake shoe turning device in the shoe block turning process are improved; and double-station turning can be achieved, and the shoe block turning efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of brake shoe processing technology, and in particular to a brake shoe turning processing device. Background Technology

[0002] Brake shoes generally refer to the friction components in a drum brake that contact the brake drum. They generate braking force by pressing against the inner surface of the brake drum and are widely used in trains, some automobiles, and mechanical devices. Brake shoes specifically refer to the movable friction components in a drum brake. They are typically composed of a metal backing plate and friction material, installed inside the brake, and contact the brake drum through expansion. Brake shoes are a type of brake shoe. In a drum brake, the brake shoes are the specific actuating components, undertaking the friction braking function of the brake shoes.

[0003] To ensure that the outer diameter and accuracy of the shoe block meet design requirements, the outer diameter of the shoe block must be machined using a lathe tool before bonding or riveting the friction lining. Due to the special shape of the shoe block, appropriate fixtures must be used during the machining process.

[0004] The existing patent document with publication number CN209239546U discloses a clamping device for machining automotive brake shoes. By setting a motor to drive a butterfly clamping plate, the clamping is more stable and reliable, while freeing up the operator's hands. The device can offset some of the stress generated during the turning process by abutting the brake shoe, avoiding large deformation of the brake shoe due to turning stress, which would affect the quality of the brake shoe. The clamping process of this device is simple and fast, with good clamping effect, and can effectively protect the brake shoe, making it practical.

[0005] Although the aforementioned automotive brake shoe machining clamping device can solve the corresponding technical problems, the brake shoes need to rotate during turning to allow the cutting tool to perform linear or curved cutting operations in a plane. However, the method of fixing the brake shoes by using a motor to drive a butterfly clamping plate to clamp them can easily cause the motor's connected wires to become tangled and knotted, or even break, when the automotive brake shoe machining clamping device rotates with the brake shoes.

[0006] Therefore, a brake shoe machining device is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a brake shoe turning device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] Brake shoe turning equipment, including:

[0010] The housing has two symmetrically arranged fixing mechanisms on its top for fixing the shoe blocks. The housing also has a rotating mechanism for driving the fixing mechanisms to rotate. There are two rotating mechanisms, and the rotating mechanisms are arranged in a one-to-one correspondence with the fixing mechanisms. The top of the housing has an auxiliary mechanism that can cooperate with the fixing mechanisms and a turning mechanism for turning the shoe blocks.

[0011] The fixing mechanism includes a support plate mounted on the rotating mechanism. Positioning blocks are fixedly connected to the left and right sides of the top of the support plate. Positioning slots adapted to the reinforcing part are opened on the positioning blocks. The reinforcing part is engaged in the inner cavity of the corresponding positioning slot. A limiting member is provided on the front and rear sides of the top of the support plate.

[0012] As a preferred technical solution, one of the limiting components includes a protrusion fixedly connected to the front side of the top of the tray, the top of the protrusion being fixedly connected to a limiting block, and the limiting block being able to be inserted into the gap between two friction parts.

[0013] As a preferred technical solution, another of the limiting components includes a protruding post fixedly connected to the rear side of the top of the tray and arranged opposite to the protrusion. A limiting post is fixedly connected to the top of the protruding post, and the limiting post can be inserted into the gap between the two shaft pins.

[0014] As a preferred technical solution, the rotating mechanism includes a motor A installed at the top of the inner cavity of the housing. The output end of the motor A is equipped with a mounting base. The top end of the mounting base extends movably through to the top of the housing and is connected to the support plate. The surface of the mounting base is rotatably connected to the through-hole of the housing.

[0015] As a preferred technical solution, the auxiliary mechanism includes two symmetrically arranged electric push rods, the electric push rods, the mounting base, and the tray are arranged in a one-to-one correspondence, and the electric push rod is located directly above the corresponding tray. The output end of the electric push rod is set towards the tray and is fixedly connected to a cylinder. A through groove adapted to the cylinder is opened at the center of the tray.

[0016] As a preferred technical solution, the auxiliary mechanism further includes a support plate fixedly connected between the two electric push rods, a support fixedly connected to the bottom of the support plate, the support fixedly connected to the top of the housing, and the support located between the two mounting seats.

[0017] As a preferred technical solution, the turning mechanism includes a turning tool disposed above the machine housing, and an adjusting member is provided between the turning tool and the machine housing.

[0018] As a preferred technical solution, the adjusting component includes a telescopic cylinder arranged along the Y-axis direction, the output end of the telescopic cylinder being fixedly connected to the cutting tool, and a rodless cylinder A arranged along the X-axis direction on the side of the telescopic cylinder away from the support plate, with mounting blocks fixedly connected to both ends of the rodless cylinder A. Two symmetrical rodless cylinders B are installed on the top of the housing, with each rodless cylinder B corresponding to a mounting block, and the slide of the rodless cylinder B being fixedly connected to the bottom of the corresponding mounting block.

[0019] As a preferred technical solution, a bracket is fixedly connected to the slide of the rodless cylinder A, the telescopic cylinder is movably disposed in the inner cavity of the bracket, a motor B is installed on one side of the bracket, and the output end of the motor B passes through the inner cavity of the bracket and is fixedly connected to the surface of the telescopic cylinder.

[0020] This utility model has at least the following beneficial effects:

[0021] This application, through the cooperation of a fixing mechanism, a rotating mechanism, and an auxiliary mechanism, can achieve the clamping and fixing of the shoe block. At the same time, the shoe block's own structural characteristics, in conjunction with the fixing mechanism, achieve a limiting effect. Therefore, no electric equipment is needed to drive the clamping plate for clamping operations. This avoids the problem of the electric equipment's wires getting tangled and knotted when the rotating mechanism drives the fixing mechanism and the shoe block fixed by the fixing mechanism rotates. This improves the stability and safety of the brake shoe turning device during shoe turning. Furthermore, it can achieve dual-station turning operations, further improving the shoe turning efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the brake shoe turning device of this utility model;

[0023] Figure 2 This is an exploded view of the fixing mechanism and mounting base of the brake shoe turning device of this utility model;

[0024] Figure 3 This is an exploded view of the fixing mechanism and shoe block of the brake shoe turning device of this utility model.

[0025] In the diagram: 1. Shoe block; 11. Reinforcing part; 12. Friction part; 13. Shaft pin part; 14. Tension spring; 100. Housing; 200. Fixing mechanism; 210. Support plate; 211. Through groove; 220. Positioning block; 221. Positioning groove; 230. Protrusion; 240. Limiting block; 250. Protrusion; 260. Limiting post; 300. Rotating mechanism; 310. Motor A; 320. Mounting base; 400. Auxiliary mechanism; 410. Electric push rod; 420. Cylinder; 430. Support plate; 440. Support; 500. Turning mechanism; 510. Turning tool; 520. Telescopic cylinder; 530. Rodless cylinder A; 540. Mounting block; 550. Rodless cylinder B; 560. Bracket; 570. Motor B. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3 This utility model provides a brake shoe turning device, including a housing 100, two symmetrically arranged fixing mechanisms 200 for fixing the brake shoe 1, two symmetrically arranged rotating mechanisms 300 for driving the fixing mechanisms 200 to rotate, an auxiliary mechanism 400 that can cooperate with the fixing mechanisms 200, and a turning mechanism 500 for turning the brake shoe 1. The fixing mechanisms 200 are located above the housing 100, and the rotating mechanisms 300 are located on the housing 100. The mechanism 300 and the fixing mechanism 200 are arranged in a one-to-one correspondence. The auxiliary mechanism 400 and the turning mechanism 500 are both located on the top of the housing 100. The fixing mechanism 200 includes a support plate 210 on the rotating mechanism 300. Positioning blocks 220 are fixedly connected to the left and right sides of the top of the support plate 210. Positioning grooves 221 that are adapted to the reinforcing part 11 are opened on the positioning blocks 220. The reinforcing part 11 is locked into the inner cavity of the corresponding positioning groove 221. A limiting member is provided on the front and rear sides of the top of the support plate 210.

[0028] One of the limiting components includes a protrusion 230 fixedly connected to the front top of the tray 210, and a limiting block 240 fixedly connected to the top of the protrusion 230. The limiting block 240 can be inserted into the gap between the two friction parts 12.

[0029] Another limiting component includes a protruding post 250 fixedly connected to the rear top of the support plate 210 and arranged opposite to the protrusion 230. A limiting post 260 is fixedly connected to the top of the protruding post 250. The limiting post 260 can be inserted into the gap between the two shaft pins 13. The height dimensions of the protruding post 250 and the protrusion 230, and the limiting post 260 and the limiting block 240 are the same. The limiting component can offset part of the stress generated during the turning process and avoid the turning stress from causing large deformation of the shoe block 1.

[0030] The rotating mechanism 300 includes a motor A310 mounted on the top of the inner cavity of the housing 100. The output end of the motor A310 is equipped with a mounting base 320. The top end of the mounting base 320 extends through to the top of the housing 100 and is connected to the support plate 210 by screws. The surface of the mounting base 320 is rotatably connected to the through-hole of the housing 100 through a bearing. By starting the motor A310, the output shaft of the motor A310 can drive the fixing mechanism 200 and the shoe block 1 to rotate synchronously through the mounting base 320, so that the turning mechanism 500 can be used for turning operations later.

[0031] The auxiliary mechanism 400 includes two symmetrically arranged electric push rods 410. The electric push rods 410, mounting bases 320, and support plates 210 are arranged in a one-to-one correspondence. The electric push rods 410 are located directly above the corresponding support plates 210. The output end of the electric push rods 410 is set towards the support plates 210 and is fixedly connected to a cylinder 420. A through groove 211 adapted to the cylinder 420 is opened at the center of the support plate 210. By activating the electric push rods 410, the output end of the electric push rods 410 can drive the cylinder 420 to move up and down. After the cylinder 420 is moved down and inserted into the inner cavity of the through groove 211, it can play an auxiliary limiting role for the hoof block 1, which helps to improve the stability of the fixed mechanism 200 when it drives the hoof block 1 to rotate.

[0032] The auxiliary mechanism 400 also includes a support plate 430 fixedly connected between two electric push rods 410. A support 440 is fixedly connected to the bottom of the support plate 430 and fixedly connected to the top of the housing 100. The support 440 is located between two mounting seats 320. The support plate 430 and the support 440 can support the electric push rods 410, so that the electric push rods 410 can be stably installed above the housing 100.

[0033] The turning mechanism 500 includes a turning tool 510 disposed above the housing 100. An adjusting member is provided between the turning tool 510 and the housing 100. The turning tool 510 is moved toward the fixing mechanism 200 by the adjusting member, so that the turning tool 510 contacts the surface of the shoe block 1. When the rotating mechanism 300 drives the fixing mechanism 200 and the shoe block 1 to rotate, the turning tool 510 can be used to perform turning operations on the surface of the shoe block 1.

[0034] The adjustment mechanism includes a telescopic cylinder 520 arranged along the Y-axis, the output end of which is fixedly connected to the cutting tool 510. A rodless cylinder A530 is arranged along the X-axis on the side of the telescopic cylinder 520 away from the support plate 210. Mounting blocks 540 are fixedly connected to both ends of the rodless cylinder A530. Two symmetrical rodless cylinders B550 are installed on the top of the housing 100. The rodless cylinders B550 and the mounting blocks 540 are arranged in a one-to-one correspondence. The slide of the rodless cylinder B550 is fixedly connected to the bottom of the corresponding mounting block 540. By activating the telescopic cylinder 520, the rodless cylinder A530, and the rodless cylinder B550, the cutting tool 510 can be adjusted in three dimensions in the X, Y, and Z-axis directions to achieve turning machining at different positions on the surface of the shoe block 1.

[0035] Among them, a bracket 560 is fixedly connected to the slide of the rodless cylinder A530, and a telescopic cylinder 520 is movably disposed in the inner cavity of the bracket 560. A motor B570 is installed on one side of the bracket 560. The output end of the motor B570 passes through the inner cavity of the bracket 560 and is fixedly connected to the surface of the telescopic cylinder 520. By starting the motor B570, the angle of the cutting tool 510 can be adjusted in the X-axis direction to meet different turning requirements of the shoe block 1 surface.

[0036] The working principle of this utility model is as follows: The leading and trailing hooves of the shoe block 1 are opened, allowing the reinforcing parts 11 on the leading and trailing hooves to be inserted into the inner cavities of the two positioning grooves 221 respectively. The limiting block 240 is inserted between the two friction parts 12, and the limiting post 260 is inserted between the two shaft pins 13, until the shoe block 1 is completely locked onto the fixing mechanism 200. Through the elastic force of the tension spring 14, the shoe block 1 is stably fixed onto the fixing mechanism 200. Then, the electric push rod 410 is activated, driving the cylinder 420 downwards until it is inserted into the inner cavity of the through groove 211. Next, the telescopic cylinder 520, the rodless cylinder A530, and the rodless cylinder B550 are activated, causing the telescopic cylinder 520 to drive the vehicle... The cutting tool 510 moves up and down, while the rodless cylinder A530 drives the bracket 560, motor B570, telescopic cylinder 520, and cutting tool 510 to move left and right. The rodless cylinder B550 drives the mounting block 540, rodless cylinder A530, bracket 560, motor B570, telescopic cylinder 520, and cutting tool 510 to move back and forth until the cutting tool 510 contacts the surface of the shoe block 1. The motor B570 is started, which drives the telescopic cylinder 520 and cutting tool 510 to rotate until the cutting tool 510 is adjusted to the required angle. Finally, the motor A310 is started, which drives the mounting base 320, fixing mechanism 200, and shoe block 1 to rotate, so that the surface of the shoe block 1 can be machined using the cutting tool 510.

[0037] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brake shoe turning device, characterized in that, include: The housing (100) has two symmetrically arranged fixing mechanisms (200) on its top for fixing the shoe block (1). The housing (100) has a rotating mechanism (300) for driving the fixing mechanism (200) to rotate. There are two rotating mechanisms (300), and the rotating mechanism (300) and the fixing mechanism (200) are arranged in a one-to-one correspondence. The top of the housing (100) has an auxiliary mechanism (400) that can be used in conjunction with the fixing mechanism (200) and a turning mechanism (500) for turning the shoe block (1). The fixing mechanism (200) includes a support plate (210) disposed on the rotating mechanism (300). Positioning blocks (220) are fixedly connected to the left and right sides of the top of the support plate (210). The positioning blocks (220) are provided with positioning grooves (221) that are adapted to the reinforcing part (11). The reinforcing part (11) is engaged in the inner cavity of the corresponding positioning groove (221). A limiting member is provided on the front and rear sides of the top of the support plate (210).

2. The brake shoe turning apparatus according to claim 1, characterized in that: One of the limiting components includes a protrusion (230) fixedly connected to the front top of the tray (210), and a limiting block (240) fixedly connected to the top of the protrusion (230), which can be inserted into the gap between the two friction parts (12).

3. The brake shoe turning apparatus according to claim 2, characterized in that: Another of the limiting members includes a protrusion (250) fixedly connected to the rear top of the tray (210) and disposed opposite to the protrusion (230), the top of the protrusion (250) being fixedly connected to a limiting post (260), the limiting post (260) being able to be inserted into the gap between the two shaft pins (13).

4. The brake shoe turning apparatus according to claim 1, characterized in that: The rotating mechanism (300) includes a motor A (310) installed on the top of the inner cavity of the housing (100). The output end of the motor A (310) is equipped with a mounting base (320). The top end of the mounting base (320) extends through to the top of the housing (100) and is connected to the support plate (210). The surface of the mounting base (320) is rotatably connected to the through-hole of the housing (100).

5. The brake shoe turning apparatus according to claim 4, characterized in that: The auxiliary mechanism (400) includes two symmetrically arranged electric push rods (410), the electric push rods (410), the mounting base (320), and the support plate (210) are arranged in a one-to-one correspondence, and the electric push rods (410) are located directly above the corresponding support plates (210). The output end of the electric push rods (410) is set towards the support plate (210) and is fixedly connected to a cylinder (420). A through groove (211) adapted to the cylinder (420) is opened at the center of the support plate (210).

6. The brake shoe turning apparatus according to claim 5, characterized in that: The auxiliary mechanism (400) further includes a support plate (430) fixedly connected between two electric push rods (410), a support (440) fixedly connected to the bottom of the support plate (430), the support (440) fixedly connected to the top of the housing (100), and the support (440) located between two mounting seats (320).

7. The brake shoe turning apparatus according to claim 1, characterized in that: The turning mechanism (500) includes a turning tool (510) disposed above the housing (100), and an adjusting member is provided between the turning tool (510) and the housing (100).

8. The brake shoe turning apparatus according to claim 7, characterized in that: The adjusting component includes a telescopic cylinder (520) arranged along the Y-axis direction. The output end of the telescopic cylinder (520) is fixedly connected to the cutting tool (510). A rodless cylinder A (530) is arranged along the X-axis direction on the side of the telescopic cylinder (520) away from the support plate (210). Both ends of the rodless cylinder A (530) are fixedly connected to mounting blocks (540). Two symmetrical rodless cylinders B (550) are installed on the top of the housing (100). The rodless cylinders B (550) and the mounting blocks (540) are arranged in a one-to-one correspondence. The slide of the rodless cylinder B (550) is fixedly connected to the bottom of the corresponding mounting block (540).

9. The brake shoe turning apparatus according to claim 8, characterized in that: A bracket (560) is fixedly connected to the slide of the rodless cylinder A (530). The telescopic cylinder (520) is movably disposed in the inner cavity of the bracket (560). A motor B (570) is installed on one side of the bracket (560). The output end of the motor B (570) passes through the inner cavity of the bracket (560) and is fixedly connected to the surface of the telescopic cylinder (520).

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