A clamping device for machining a brake drum

Abstract

The utility model provides a kind of clamping device for brake drum processing, including workbench, track is provided on the workbench, installation block is provided on the track, further include motor, the motor is set on installation block, the output end of the motor is connected with driving wheel, chain is connected on the driving wheel;First sprocket, the first sprocket is set in one side of installation block, the inside of the first sprocket is provided with ratchet wheel, the inside of the ratchet wheel is provided with driven wheel, the driven wheel is connected with lead screw, barb and spring piece are provided on the driven wheel, the barb is connected with spring piece, the barb is connected between driven wheel by pin shaft;Second sprocket, the second sprocket is set in one side of installation block, and in first sprocket same side, the second sprocket is connected with driving wheel by chain, the advantage is not only can realize the clamping of brake drum, and one machine multiuse, reduce the probability of occurrence of safety accident.

Description

Technical Field

[0001] This utility model relates to the technical field of brake drum processing, and specifically to a clamping device for brake drum processing. Background Technology

[0002] The brake drum is the friction pair component of a drum brake. Besides possessing the strength and rigidity required of a component, it should also have the highest possible and most stable coefficient of friction, as well as appropriate wear resistance, heat resistance, heat dissipation, and heat capacity. During assembly, the brake drum requires clamping. Currently, when assembling other surfaces, it is necessary to remove the drum, change the surface, and then clamp it again to avoid wasting time and affecting assembly accuracy.

[0003] A patent publication number CN222726496U was found, entitled "A Clamping and Fixing Mechanism for Processing Automobile Brake Drums." Specifically, the patent discloses a clamping and fixing mechanism for processing automobile brake drums, including a worktable. Support legs arranged in a rectangular array are fixedly connected to the lower surface of the worktable. Fixing blocks arranged symmetrically are fixedly connected to the upper surface of the worktable. Limiting rods are fixedly connected to the opposing surfaces of two fixing blocks. Bidirectional threaded rods are mounted on the inner walls of both fixing blocks via bearings. The outer surfaces of the bidirectional threaded rods are threaded with opposing... The mounting blocks are distributed in a circular pattern. The inner walls of two mounting blocks are movably sleeved with the outer surface of the limiting rod. A mounting hole is opened on one side surface of the mounting block. A mounting rod is installed on the inner wall of the mounting hole through a bearing. An arc-shaped clamping block is fixedly connected to one end of the mounting rod. The other end of one of the mounting rods passes through and extends to one side surface of one of the mounting blocks. A drive disk is fixedly connected to the other end of the drive disk. A drive groove distributed in a circular array is opened on the outer surface of the drive disk. A limiting groove distributed in a circular array is opened on the outer surface of the drive disk.

[0004] Analysis of the publicly available materials reveals that clamping the brake drum can be achieved, avoiding frequent disassembly and installation. However, this requires multi-motor operation, increasing the manufacturing cost of the clamping device, and is inconvenient to operate. Furthermore, motor malfunctions can easily lead to safety accidents. Utility Model Content

[0005] In view of this, the present invention provides a clamping device for processing brake drums, which can not only clamp brake drums, but also perform multiple functions in one machine, reducing the probability of safety accidents.

[0006] To solve the above-mentioned technical problems, this utility model provides a clamping device for processing brake drums, including a worktable, a track on the worktable, and a mounting block on the track, and further including... An electric motor is mounted on a mounting block, and its output end is connected to a drive wheel, which is connected to a chain. The first sprocket is disposed on one side of the mounting block. A ratchet is disposed on the inner side of the first sprocket, and a driven wheel is disposed on the inner side of the ratchet. The driven wheel is connected to a lead screw. A barb and a spring are disposed on the driven wheel. The barb is connected to the spring. The barb and the driven wheel are connected by a pin. The second sprocket is located on one side of the mounting block, on the same side as the first sprocket, and is connected to the drive sprocket via a chain; A push rod is connected to a second sprocket, and a clamping frame is connected to the end of the push rod for clamping the brake drum.

[0007] Furthermore, there are two mounting blocks arranged in parallel with a gap between them, and the mounting blocks are slidably connected to the track.

[0008] Furthermore, a ratchet is fixedly installed on the inner side of the first sprocket, and a ratchet is fixedly installed on the inner side of the second chain. The direction of the ratchet on the inner side of the first chain is opposite to the direction of the ratchet on the inner side of the second chain.

[0009] Furthermore, the driven wheel is located inside the ratchet, and the outer side of the driven wheel is provided with a groove, and a barb is provided in the groove. The barb is movably connected to the driven wheel, and one end of the spring is connected to the driven wheel, and the other end is connected to the inner side of the barb.

[0010] Furthermore, the clamping frame has an arc-shaped structure, and an installation rod is provided on the clamping frame. The installation rod passes through the clamping frame and can slide within the clamping frame. An anti-detachment cap with a diameter larger than the hole on the clamping frame is provided at the end of the installation rod, and a clamping piece is connected to the other end of the installation rod.

[0011] Furthermore, a spring is fitted onto the mounting rod, and the spring is disposed between the inner side of the clamping frame and the outer side of the clamping piece.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. It can clamp the brake drum. The clamping of the brake drum can be achieved through the motor, chain and first sprocket.

[0013] 2. Multi-functional design reduces the probability of safety accidents. By setting up sprockets, ratchet, and barbs, one motor can control the rotation of two sprockets separately, and the rotation of the two sprockets is asynchronous. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 for Figure 1 A structural diagram from another perspective; Figure 4 for Figure 3 Enlarged view of section B; In the diagram: 1. Workbench; 2. Track; 3. Mounting block; 4. Lead screw; 5. First sprocket; 6. Drive wheel; 7. Second sprocket; 8. Ratchet; 9. Driven wheel; 10. Barb; 11. Spring; 12. Chain; 13. Push rod; 14. Clamping frame; 15. Mounting rod; 16. Spring; 17. Clamping plate; 18. Motor. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figures 1 to 4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0016] like Figures 1 to 4 As shown: Example

[0017] A clamping device for processing brake drums includes a worktable 1, a track 2 on the worktable 1, a mounting block 3 on the track 2, a motor 18 mounted on the mounting block 3, a drive wheel 6 connected to the output end of the motor 18, a chain 12 connected to the drive wheel 6, a first sprocket 5 located on one side of the mounting block 3, a ratchet 8 inside the first sprocket 5, and a driven wheel 9 inside the ratchet 8. The driven wheel 9 is connected to the lead screw 4. The driven wheel 9 is provided with a barb 10 and a spring 11. The barb 10 is connected to the spring 11. The barb 10 and the driven wheel 9 are connected by a pin. The second sprocket 7 is located on one side of the mounting block 3 and on the same side as the first sprocket 5. The second sprocket 7 is connected to the driving wheel 6 through a chain 12. The push rod 13 is connected to the second sprocket 7. The end of the push rod 13 is connected to a clamping frame 14 for clamping the brake drum.

[0018] In this embodiment, two tracks 2 are provided on the upper surface of the workbench 1. T-slots are provided on the tracks 2 for placing the mounting blocks 3. A motor 18 is installed on each mounting block 3, providing power. The motor 18 is designed to rotate in both directions. A drive wheel 6 is connected to the output end of the motor 18. Two chains 12 are installed on the drive wheel 6, connecting to a first sprocket 5 and a second sprocket 7 respectively. A ratchet 8 is installed on the first sprocket 5, with a driven wheel 9 inside the ratchet 8. The driven wheel 9 is connected to a lead screw 4. The first sprocket 5 drives the lead screw 4 to rotate, thereby causing the two mounting blocks 3 to move inward or outward. A ratchet 8 is also installed on the second sprocket 7, with a driven wheel 9 connected to a push rod 13 inside the ratchet 8. The second sprocket 7 causes the push rod 13 to rotate, thereby causing the brake drum to rotate. Example

[0019] There are two mounting blocks 3, which are arranged in parallel with a gap in the middle, and the mounting blocks 3 are slidably connected to the track 2.

[0020] Unlike the above embodiments, in this embodiment, the mounting blocks 3 are designed as two, parallel to each other, and slidably connected between the tracks 2. Example

[0021] A ratchet 8 is fixedly installed on the inner side of the first sprocket 5, and a ratchet 8 is fixedly installed on the inner side of the second chain 12. The direction of the ratchet 8 on the inner side of the first chain 12 is opposite to the direction of the ratchet 8 on the inner side of the second chain 12.

[0022] Unlike the above embodiments, in this embodiment, the inner side of the ratchet 8 is provided with a barb structure, and the barb structures of the first sprocket 5 and the second sprocket 7 are in opposite directions. Example

[0023] The driven wheel 9 is located inside the ratchet 8. The outer side of the driven wheel 9 is provided with a groove, and a barb 10 is provided in the groove. The barb 10 is movably connected to the driven wheel 9. One end of the spring piece 11 is connected to the driven wheel 9, and the other end is connected to the inner side of the barb 10.

[0024] Unlike the above embodiments, in this embodiment, a barb 10 is provided on the driven wheel 9. When the first sprocket 5 is driven to rotate, the barb 10 is pressed against the barb by the spring piece 11, and then the first sprocket 5 is driven. Example

[0025] The clamping frame 14 has an arc-shaped structure. An installation rod 15 is provided on the clamping frame 14. The installation rod 15 passes through the clamping frame 14 and can slide in the clamping frame 14. An anti-detachment cap with a diameter larger than the hole on the clamping frame 14 is provided at the end of the installation rod 15. The other end of the installation rod 15 is connected to a clamping piece 17.

[0026] Unlike the above embodiments, in this embodiment, in order to achieve a certain buffering effect and to keep the brake drum, the clamping frame 14 is set as an arc-shaped structure, and the clamping frame 14 is provided with a mounting rod 15, and a spring 16 is sleeved on the mounting rod 15. Through the design of the spring 16, when the clamping piece 17 contacts the brake drum, it plays a buffering role. Example

[0027] A spring 16 is sleeved on the mounting rod 15, and the spring 16 is disposed between the inner side of the clamping frame 14 and the outer side of the clamping piece 17.

[0028] The working method (or working principle) of this utility model: This technology employs two identical sprockets in opposite directions. When motor 18 rotates forward, it moves the mounting block 3, effectively clamping the brake drum. To minimize sudden hard contact during clamping, spring 16 provides cushioning. When the brake drum needs to be rotated, motor 18 is reversed, driving the second sprocket 7 via chain 12. At this point, the barb 10 engages with the sprocket, causing the driven wheel 9 to rotate. The advantage of using ratchet 8, barbs, and barbs 10 is that one sprocket remains stationary when motor 18 rotates forward or backward. This effectively prevents accidents caused by motor 18 malfunction.

[0029] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A clamping device for processing brake drums, comprising a worktable (1), a track (2) provided on the worktable (1), and a mounting block (3) provided on the track (2), characterized in that: Also includes A motor (18) is mounted on a mounting block (3). The output end of the motor (18) is connected to a drive wheel (6), and a chain (12) is connected to the drive wheel (6). The first sprocket (5) is located on one side of the mounting block (3). A ratchet (8) is located on the inner side of the first sprocket (5). A driven wheel (9) is located on the inner side of the ratchet (8). The driven wheel (9) is connected to a lead screw (4). A barb (10) and a spring (11) are provided on the driven wheel (9). The barb (10) is connected to the spring (11). The barb (10) and the driven wheel (9) are connected by a pin. The second sprocket (7) is located on one side of the mounting block (3) and on the same side as the first sprocket (5). The second sprocket (7) is connected to the drive wheel (6) via a chain (12). A push rod (13) is connected to a second sprocket (7), and a clamping frame (14) is connected to the end of the push rod (13) for clamping the brake drum.

2. The clamping device for processing a brake drum according to claim 1, characterized in that: There are two mounting blocks (3), which are arranged in parallel with a gap in the middle. The mounting blocks (3) are slidably connected to the track (2).

3. The clamping device for processing a brake drum according to claim 2, characterized in that: A ratchet (8) is fixedly installed on the inner side of the first sprocket (5), and a ratchet (8) is fixedly installed on the inner side of the second chain (12). The direction of the ratchet (8) on the inner side of the first chain (12) is opposite to the direction of the ratchet (8) on the inner side of the second chain (12).

4. The clamping device for processing a brake drum according to claim 3, characterized in that: The driven wheel (9) is located inside the ratchet (8). The outer side of the driven wheel (9) is provided with a groove, and a barb (10) is provided in the groove. The barb (10) is movably connected to the driven wheel (9). One end of the spring piece (11) is connected to the driven wheel (9), and the other end is connected to the inner side of the barb (10).

5. A clamping device for processing a brake drum according to claim 4, characterized in that: The clamping frame (14) has an arc-shaped structure. The clamping frame (14) is provided with an installation rod (15). The installation rod (15) passes through the clamping frame (14) and can slide in the clamping frame (14). The end of the installation rod (15) is provided with an anti-detachment cap with a diameter larger than the hole on the clamping frame (14). The other end of the installation rod (15) is connected to a clamping piece (17).

6. A clamping device for processing a brake drum according to claim 5, characterized in that: A spring (16) is fitted on the mounting rod (15), and the spring (16) is disposed between the inner side of the clamping frame (14) and the outer side of the clamping piece (17).

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