Clamping device for intelligent coating of brake drum

Abstract

The clamping device comprises a base, a disc groove is formed in the top of the base, a disc is arranged in the disc groove, a circular groove is formed in the middle of the bottom wall of the disc groove, a first bearing is fixedly installed on the inner side wall of the circular groove, and an inner ring of the first bearing is fixedly connected to the middle of the bottom of the disc through a connecting rod; according to the brake drum clamping device, the rotatable disc is arranged on the base, and the limiting ring is integrally formed at the top of the disc, so that when a brake drum is clamped, the brake drum can be arranged on the outer side wall of the limiting ring in a sleeving mode, the positions of the brake drum and the screw clamping mechanism can be conveniently calibrated, and smooth clamping is facilitated; and when the brake drum is driven to rotate, the disc can also rotate, and abrasion of the brake drum is avoided.

Description

Technical Field

[0001] This patent relates to the field of brake drum production technology, specifically a clamping device for intelligent painting of brake drums. Background Art

[0002] The brake drum is part of the drum brake system. When braking, the piston applies pressure to the two pairs of half-moon-shaped brake shoes, making them close to the inner wall of the drum chamber, thereby generating friction to stop the rotation of the wheel. After the brake drum is produced, it is necessary to spray paint on the outer side. Before painting, the brake drum needs to be clamped by a clamping device to drive the brake drum to rotate and clamp. The existing clamping device consists of a base and a screw clamping structure. When clamping, the brake drum is placed on the base, and then the inner side of the brake drum is clamped by the clamping structure. However, there is a lack of a limiting structure on the base, which is not convenient for the screw structure to calibrate the clamping position, and the brake drum is prone to friction with the base when rotating. For this reason, we propose a clamping device for intelligent painting of brake drums. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this patent is to provide a clamping device for intelligent painting of brake drums. This patent provides a rotatable disc on the base, and a limiting ring is integrally formed on the top of the disc. When clamping the brake drum, the brake drum can be sleeved on the outer wall of the limiting ring to calibrate the position of the brake drum and the screw clamping mechanism, which facilitates smooth clamping. When the brake drum is driven to rotate, the disc can also rotate to avoid wear on the brake drum.

[0004] The technical solution adopted by this patent to solve its technical problems is: a clamping device for intelligent coating of brake drums, including a base, a disc groove is provided on the top of the base, a disc is provided in the disc groove, a circular groove is provided in the middle of the bottom wall of the disc groove, a first bearing is fixedly installed on the inner side wall of the circular groove, the inner ring of the first bearing is fixedly connected to the middle of the bottom of the disc through a connecting rod, a limiting ring is integrally formed on the top of the disc, a brake drum is sleeved on the outer wall of the limiting ring, a bracket is fixedly installed on the top of the base, a motor is installed at the bottom of the bracket, a connecting plate is fixedly installed at the bottom end of the rotating shaft of the motor, an electric push rod is installed at the bottom of the connecting plate, and a screw clamping mechanism is provided at the bottom end of the piston rod of the electric push rod;

[0005] The screw clamping mechanism includes a mounting plate, and a horizontal plate is fixedly installed on the left and right sides of the mounting plate. The left side of the mounting plate is provided with a mounting hole, and a second bearing is fixedly installed on the inner side wall of the mounting hole, and a screw is fixedly installed on the inner side wall of the inner ring of the second bearing. The left and right sides of the side walls of the screw are provided with threads in opposite directions, and self-limiting nuts are screwed on the two threads. The top of the outer side wall of the self-limiting nut is slidably installed on the bottom of the horizontal plate, and a vertical rod is installed on the bottom end of the self-limiting nut, and a pressure block is integrally formed at the bottom end of the vertical rod.

[0006] Furthermore, a rubber layer is bonded to the outer side surface of the pressing block.

[0007] Furthermore, the self-limiting nut includes an internal threaded ring, the top of the outer wall of the internal threaded ring is provided with a mounting groove, a limiting wheel is rotatably connected in the mounting groove via a pin shaft, a wheel groove is provided at the bottom of the cross plate, and the top of the limiting wheel is rollingly installed in the wheel groove.

[0008] Furthermore, the top of the internal thread ring does not contact the bottom of the transverse plate.

[0009] Furthermore, a shield is fixedly mounted on the bottom of the bracket.

[0010] Furthermore, the shield is a rubber shield or a plastic shield.

[0011] The beneficial effects of this patent are:

[0012] 1. This patent provides a rotatable disc on the base, and a limiting ring is integrally formed on the top of the disc. When clamping the brake drum, the brake drum can be sleeved on the outer side wall of the limiting ring to calibrate the position of the brake drum and the screw clamping mechanism, which facilitates smooth clamping. When the brake drum is driven to rotate, the disc can also rotate to avoid wear on the brake drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the patent structure.

[0014] Figure 2 This is a cross-sectional view of the patent structure.

[0015] Figure 3 This is a schematic diagram of the screw clamping mechanism of this patent.

[0016] Explanation of the reference numerals: 1 base, 2 disc groove, 3 disc, 4 first bearing, 5 limiting ring, 6 bracket, 7 motor, 8 connecting plate, 9 electric push rod, 10 screw clamping mechanism, 11 mounting plate, 12 cross plate, 13 second bearing, 14 screw, 15 thread, 16 self-limiting nut, 17 vertical rod, 18 pressure block, 19 rubber layer, 20 internal thread ring, 21 mounting groove, 22 limiting wheel, 23 wheel groove, 24 baffle cover. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0018] See also Figure 1 , Figure 2 and Figure 3 This is a schematic diagram of the structure of the patent, a clamping device for intelligent coating of brake drums, including a base 1, a disc groove 2 is provided on the top of the base 1, a disc 3 is provided in the disc groove 2, a circular groove is provided in the middle of the bottom wall of the disc groove 2, a first bearing 4 is fixedly installed on the inner side wall of the circular groove, the inner ring of the first bearing 4 is fixedly connected to the middle of the bottom of the disc 3 through a connecting rod, a limiting ring 5 is integrally formed on the top of the disc 3, a brake drum is sleeved on the outer wall of the limiting ring 5, a bracket 6 is fixedly installed on the top of the base 1, a motor 7 is installed at the bottom of the bracket 6, a connecting plate 8 is fixedly installed on the bottom end of the rotating shaft of the motor 7, an electric push rod 9 is installed at the bottom of the connecting plate 8, and a screw clamping mechanism 10 is provided at the bottom end of the piston rod of the electric push rod 9;

[0019] A driving power source for the electric push rod 9 is provided at the bottom of the connecting plate 8 .

[0020] The outer diameter of the limiting ring 5 matches the inner diameter of the brake drum to be clamped.

[0021] The screw clamping mechanism 10 includes a mounting plate 11, on the left and right sides of which a horizontal plate 12 is fixedly mounted, a mounting hole is provided on the left side of the mounting plate 11, a second bearing 13 is fixedly mounted on the inner side wall of the mounting hole, a screw 14 is fixedly mounted on the inner side wall of the inner ring of the second bearing 13, threads 15 in opposite directions are provided on the left and right sides of the side wall of the screw 14, self-limiting nuts 16 are screwed on the two threads 15, the top of the outer side wall of the self-limiting nut 16 is slidably mounted on the bottom of the horizontal plate 12, a vertical rod 17 is installed on the bottom end of the self-limiting nut 16, and a pressure block 18 is integrally formed at the bottom end of the vertical rod 17.

[0022] Specifically, a rubber layer 19 is bonded to the outer side surface of the pressure block 18 .

[0023] The rubber layer 19 is provided to increase the friction and stabilization effect between the pressure block 18 and the inner wall of the brake drum.

[0024] Specifically, the self-limiting nut 16 includes an internal threaded ring 20, the top of the outer wall of the internal threaded ring 20 is provided with a mounting groove 21, a limiting wheel 22 is rotatably connected to the mounting groove 21 through a pin shaft, and a wheel groove 23 is provided at the bottom of the cross plate 12, and the top of the limiting wheel 22 is rollingly installed in the wheel groove 23.

[0025] Specifically, the top of the internally threaded ring 20 does not contact the bottom of the transverse plate 12 .

[0026] If the limit is directly achieved by sliding the top of a nut (hexagonal nut) on the bottom of the cross plate 12, the limit is a sliding limit with greater friction. If the limit wheel 22 is installed in the wheel groove 23 by rolling at the top, the limit is a rolling limit, which reduces friction and is convenient for personnel operation.

[0027] Specifically, a shield 24 is fixedly mounted on the bottom of the bracket 6 .

[0028] Specifically, the shield 24 is a rubber shield or a plastic shield.

[0029] like Figure 1 , 2 The shield 24 shown blocks the outside of the screw clamping mechanism 10, which can prevent the ink sprayed by the paint spray nozzle (brake drum paint spraying mechanism) on the front side of the base 1 from splashing on the screw 14 and affecting subsequent use.

[0030] The blocking cover 24 made of rubber or plastic material is provided to facilitate deformation of the blocking cover 24 so as to operate the screw clamping mechanism 10 .

[0031] Working principle: The brake drum sleeve is set on the outer wall of the limit ring 5, and then the clamping position of the brake drum is calibrated (so that the two pressure blocks 18 are symmetrically distributed with the axis of the brake drum). Then the screw clamping mechanism 10 can be driven downward by the electric push rod 9 until the two pressure blocks 18 enter the inside of the brake drum. The staff rotates the screw 14 to make the two self-limiting nuts 16 move away from each other. The two pressure blocks 18 are squeezed on the inner wall of the brake drum. After the clamping is completed, the paint nozzle on the front side of the base 1 (the brake drum painting mechanism) sprays ink to paint the outer wall of the brake drum. At the same time, the brake drum is driven to rotate by the motor 7 to rotate and receive ink.

[0032] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0033] This patent provides a rotatable disc on the base, and a limiting ring is integrally formed on the top of the disc. When clamping the brake drum, the brake drum can be sleeved on the outer side wall of the limiting ring to calibrate the position of the brake drum and the screw clamping mechanism, which facilitates smooth clamping. When the brake drum is driven to rotate, the disc can also rotate to avoid wear on the brake drum.

[0034] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0035] Although the embodiments of the present patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. Clamping device for intelligent coating of brake drum, characterized by: The invention comprises a base (1), wherein a disc groove (2) is provided on the top of the base (1), a disc (3) is provided in the disc groove (2), a circular groove is provided in the middle of the bottom wall of the disc groove (2), a first bearing (4) is fixedly mounted on the inner side wall of the circular groove, an inner ring of the first bearing (4) is fixedly connected to the middle of the bottom of the disc (3) via a connecting rod, a limiting ring (5) is integrally formed on the top of the disc (3), a brake drum is sleeved on the outer side wall of the limiting ring (5), a bracket (6) is fixedly mounted on the top of the base (1), a motor (7) is mounted on the bottom of the bracket (6), a connecting plate (8) is fixedly mounted on the bottom end of the rotating shaft of the motor (7), an electric push rod (9) is mounted on the bottom of the connecting plate (8), and a screw clamping mechanism (10) is provided on the bottom end of the piston rod of the electric push rod (9); The screw clamping mechanism (10) comprises a mounting plate (11), a horizontal plate (12) is fixedly mounted on the left and right sides of the mounting plate (11), a mounting hole is provided on the left side of the mounting plate (11), a second bearing (13) is fixedly mounted on the inner side wall of the mounting hole, a screw (14) is fixedly mounted on the inner side wall of the inner ring of the second bearing (13), threads (15) in opposite directions are provided on the left and right sides of the side wall of the screw (14), two self-limiting nuts (16) are screwed on the two threads (15), the top of the outer side wall of the self-limiting nut (16) is slidably mounted on the bottom of the horizontal plate (12), a vertical rod (17) is installed on the bottom end of the self-limiting nut (16), and a pressure block (18) is integrally formed on the bottom end of the vertical rod (17).

2. The clamping device for intelligent coating of brake drum according to claim 1 is characterized in that: A rubber layer (19) is bonded to the outer side surface of the pressing block (18).

3. The clamping device for intelligent coating of brake drum according to claim 1 is characterized in that: The self-limiting nut (16) comprises an internal thread ring (20), the top end of the outer wall of the internal thread ring (20) is provided with a mounting groove (21), a limiting wheel (22) is rotatably connected in the mounting groove (21) via a pin shaft, a wheel groove (23) is provided at the bottom of the transverse plate (12), and the top end of the limiting wheel (22) is rollingly mounted in the wheel groove (23).

4. The clamping device for intelligent coating of brake drum according to claim 3 is characterized in that: The top of the internal thread ring (20) does not contact the bottom of the transverse plate (12).

5. The clamping device for intelligent coating of brake drum according to claim 1 is characterized in that: A blocking cover (24) is fixedly mounted on the bottom of the bracket (6).

6. The clamping device for intelligent coating of brake drum according to claim 5 is characterized in that: The baffle (24) is a rubber baffle or a plastic baffle.

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