Brake drum machining tool

Abstract

The utility model relates to the technical field of brake drum machining, in particular to a brake drum machining tool. Comprising a bottom plate, a supporting frame and an auxiliary device, the auxiliary device comprises a rotating shaft, a rotating disc, a first gear, a servo motor, a second gear, a limiting assembly and a supporting assembly, during machining, a workpiece is fixed through a clamp at the top of the rotating disc, then an equipment power head can drive a drill bit to descend for drilling machining, and after machining, the equipment power head ascends to reset; the servo motor acts to drive the second gear to rotate, the second gear drives the first gear to rotate, rotation of the rotating shaft is achieved, and finally the rotating disc can rotate, so that the workpiece rotates and is positioned to the next machining point position, then machining can be conducted again, secondary clamping and positioning do not need to be conducted on the brake drum when drilling machining is conducted on the brake drum, and machining efficiency is improved. The positioning error of the brake drum is effectively reduced, and the drilling precision and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drum processing, in particular to a brake drum processing tool. Background Art

[0002] The brake drum is the friction pair of the drum brake. In addition to having the strength and rigidity required as a component, it should also have the highest possible and stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity to ensure stability in use. When drilling holes in the brake drum, drilling tools will be used in conjunction with a drilling machine to drill holes.

[0003] However, the current brake drum drilling tooling cannot rotate after the brake drum is fixed during processing. When performing multi-point drilling, the brake drum needs to be loosened and adjusted in position, and then clamped again for drilling. However, after the second clamping and positioning, the positioning error of the brake drum is increased, which reduces the drilling processing accuracy and quality. Utility Model Content

[0004] The utility model aims to provide a brake drum processing tool, which is designed to eliminate the need for secondary clamping and positioning of the brake drum during brake drum drilling, effectively reduce the positioning error of the brake drum, and help improve the drilling processing accuracy and quality.

[0005] To achieve the above-mentioned purpose, the utility model provides a brake drum processing tool, comprising a base plate and a support frame, wherein the support frame is fixedly connected to the base plate and is located on the base plate, and further comprises an auxiliary device;

[0006] The auxiliary device comprises a rotating shaft, a rotating disk, a first gear, a servo motor, a second gear, a limiting assembly and a supporting assembly, wherein the rotating shaft is rotatably connected to the supporting frame and is located on the supporting frame, the rotating disk is fixedly connected to the rotating shaft and is located on the top of the rotating shaft, a fixture is installed on the rotating disk, the first gear is fixedly connected to the rotating shaft and is located at the bottom of the rotating shaft, the servo motor is fixedly connected to the supporting frame and is located on a side of the supporting frame close to the rotating disk, the second gear is fixedly connected to the output shaft of the servo motor and meshes with the first gear and is located on the output shaft of the servo motor, the limiting assemblies are respectively arranged on the supporting frame and the rotating shaft, and the supporting assembly is arranged below the rotating disk;

[0007] The servo motor is provided with a brake mechanism and an encoder.

[0008] Wherein, the limiting assembly includes a limiting cover and a locking wire ring, the limiting cover is fixedly connected to the support frame and is located on the side of the support frame close to the rotating shaft; the locking wire ring is threadedly connected to the rotating shaft and is located on the rotating shaft.

[0009] Wherein, the support assembly includes a fixed seat and an action component, the fixed seat is fixedly connected to the support frame and is arranged on both sides of the rotating shaft; the action component is arranged on the side of the fixed seat close to the turntable.

[0010] Wherein, the action component includes a hydraulic cylinder and an anti-skid plate, the hydraulic cylinder is fixedly connected to the fixing seat and is located on the fixing seat; the anti-skid plate is connected to the output end of the hydraulic cylinder and is located on the output end of the hydraulic cylinder.

[0011] Wherein, the auxiliary device also includes a shield and a guard plate, the shield is fixedly connected to the support frame and buckled on the outside of the servo motor; the guard plate is fixedly connected to the support frame and is located at the front and rear sides of the support frame.

[0012] The utility model discloses a brake drum processing tooling, a support frame is installed on a base plate, the base plate is used for the tooling to be installed on the equipment workbench, the rotating shaft is installed on the support frame, the turntable is installed on the top of the rotating shaft, different workpiece fixtures can be installed on the turntable, the first gear is installed at the bottom of the rotating shaft, the servo motor with a brake mechanism and an encoder is installed on the support frame, the second gear is installed on the servo motor output shaft and meshes with the first gear, the limit components are respectively arranged on the support frame and the rotating shaft, and the support component is arranged below the turntable. During processing, the workpiece is first fixed by the fixture on the top of the turntable, and then the power head of the equipment can drive the drill bit to move downward for drilling processing. After processing, the power head of the equipment moves upward and resets, and then the servo motor is actuated to drive the second gear to rotate, and the second gear drives the first gear to rotate, so as to realize the rotation of the rotating shaft, and finally the turntable can be rotated, so that the workpiece is rotated and positioned to the next processing point, and then it can be processed again, thereby realizing that when performing brake drum drilling processing, there is no need to perform secondary clamping and positioning of the brake drum, effectively reducing the positioning error of the brake drum, and being conducive to improving the drilling processing accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of a brake drum processing tool according to the first embodiment of the utility model.

[0015] Figure 2 It is a schematic structural diagram of a locking wire ring according to the first embodiment of the utility model.

[0016] Figure 3 It is a schematic diagram of the overall structure of a brake drum processing tool according to the second embodiment of the utility model.

[0017] In the figure: 101-bottom plate, 102-support frame, 103-rotating shaft, 104-turntable, 105-first gear, 106-servo motor, 107-second gear, 108-limiting cover, 109-locking wire ring, 110-fixed seat, 111-hydraulic cylinder, 112-anti-skid plate, 201-protective cover, 202-protective plate. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] Embodiment 1:

[0020] like Figure 1 and Figure 2 As shown, Figure 1 This is the overall structural diagram of the brake drum processing tooling. Figure 2 It is a structural schematic diagram of a locking wire ring 109. The utility model provides a brake drum processing tooling: including a base plate 101, a support frame 102 and an auxiliary device, the auxiliary device includes a rotating shaft 103, a rotating disk 104, a first gear 105, a servo motor 106, a second gear 107, a limit assembly and a support assembly, the limit assembly includes a limit cover 108 and a locking wire ring 109, the support assembly includes a fixed seat 110 and an action component, and the action component includes a hydraulic cylinder 111 and an anti-slip plate 112. Through the above scheme, it can be achieved that when the brake drum is drilled, there is no need to perform secondary clamping and positioning on the brake drum, which effectively reduces the positioning error of the brake drum and is conducive to improving the drilling processing accuracy and quality. It can be understood that the above scheme can effectively reduce the positioning error of the brake drum and is conducive to improving the drilling processing accuracy and quality.

[0021] In this embodiment, the support frame 102 is fixedly connected to the base plate 101 and is located on the base plate 101. The support frame 102 is installed on the base plate 101 through positioning pins and bolts. The bolts are arranged from bottom to top and are countersunk. After the base plate 101 is installed on the equipment workbench, the connecting bolts of the support frame 102 can be prevented from loosening.

[0022] The rotating shaft 103 is rotatably connected to the support frame 102 and is located on the support frame 102; the rotating disk 104 is fixedly connected to the rotating shaft 103 and is located at the top of the rotating shaft 103; a fixture is installed on the rotating disk 104; the first gear 105 is fixedly connected to the rotating shaft 103 and is located at the bottom of the rotating shaft 103; the servo motor 106 is fixedly connected to the support frame 102 and is located on the side of the support frame 102 close to the rotating disk 104; the second gear 107 is fixedly connected to the output shaft of the servo motor 106 and meshes with the first gear 105 and is located on the output shaft of the servo motor 106; the limiting components are respectively arranged on the support frame 102 and the rotating shaft 103, and the supporting component is arranged below the rotating disk 104; the top and Bearing holes are respectively arranged at the bottom to facilitate the installation and bearing arrangement of the rotating shaft 103. The inner ring of the bearing at the bottom of the rotating shaft 103 is abutted by its own stepped structure, and the top is limited and tightened by the limiting assembly to avoid movement. The bearing has a dust ring. The turntable 104 is installed on the top stepped part of the rotating shaft 103 by a flat key and a locking bolt. Connecting threaded holes are arranged on the turntable 104 to facilitate the installation of the fixture. The first gear 105 is installed at the bottom of the rotating shaft 103 by a flat key and a bolt, and the servo motor 106 is installed on the support frame 102 by bolts. The second gear 107 is installed on the output shaft of the servo motor 106 by a flat key and a bolt, and meshes with the first gear 105. The support assembly is arranged below the turntable 104 to further ensure the stability of the stop position of the turntable 104.

[0023] The servo motor 106 is provided with a brake mechanism and an encoder. The brake mechanism of the servo motor 106 can facilitate the motor to stop and lock the shaft, and the encoder can facilitate the rotation angle control.

[0024] Secondly, the limit cover 108 is fixedly connected to the support frame 102 and is located on the side of the support frame 102 close to the rotating shaft 103; the locking wire ring 109 is threadedly connected to the rotating shaft 103 and is located on the rotating shaft 103. The limit cover 108 has a T-shaped cross section and a through hole inside, which is convenient for sleeve installation on the outside of the rotating shaft 103 and finally fixed by bolts. After the limit cover 108 is installed, it will abut against the outer ring of the bearing installed at the top of the rotating shaft 103, and a spacer sleeve is sleeved under the threaded part at the top of the rotating shaft 103, and the spacer sleeve abuts against the inner ring of the top bearing. Then, by installing the locking wire ring 109, the spacer sleeve can be limited, and finally the bottom and top bearings of the rotating shaft 103 can be limited to ensure that the rotating shaft 103 does not move vertically when rotating.

[0025] Then, the fixing seat 110 is fixedly connected to the support frame 102 and is arranged on both sides of the rotating shaft 103; the action component is arranged on the side of the fixing seat 110 close to the rotating disk 104. The fixing seat 110 is installed on the support frame 102 by positioning pins and bolts, and is symmetrically arranged. The action component is arranged on the side of the fixing seat 110 close to the rotating disk 104 for processing and matching.

[0026] Finally, the hydraulic cylinder 111 is fixedly connected to the fixing seat 110 and is located on the fixing seat 110; the anti-skid plate 112 is connected to the output end of the hydraulic cylinder 111 and is located on the output end of the hydraulic cylinder 111. The hydraulic cylinder 111 is installed on the fixing seat 110 by bolts, and the anti-skid plate 112 is fixed to the output end of the hydraulic cylinder 111 by bolts, and the bolts are installed with countersunk heads. The contact surface between the anti-skid plate 112 and the bottom of the turntable 104 is set as an anti-skid toothed plane to increase friction. After the servo motor 106 stops, the hydraulic cylinder 111 is actuated to push the anti-skid plate 112 to move vertically upward and just abut against the lower end surface of the turntable 104. At this time, the hydraulic cylinder 111 and the anti-skid plate 112 are not aligned with the servo motor 106. The anti-skid plate 112 is impacted to prevent the connecting fixing bolts from breaking, so that the anti-skid plate 112 can be supported during processing. At the same time, the friction between the anti-skid plate 112 and the anti-skid plate 112 will help the anti-skid plate 112 to maintain its position when it stops stably. The hydraulic cylinder 111 delays its action after the servo motor 106 stops positioning. After the processing is completed again, the hydraulic cylinder 111 first drives the anti-skid plate 112 to reset downward, and then the servo motor 106 is activated to realize the re-positioning processing after the anti-skid plate 112 rotates.

[0027] When the utility model is used for drilling holes in brake drums, it is not necessary to perform secondary clamping and positioning of the brake drums, which effectively reduces the positioning error of the brake drums and is conducive to improving the accuracy and quality of drilling holes. During processing, the workpiece is first fixed by the clamp on the top of the turntable 104, and then the power head of the equipment can drive the drill bit downward to perform drilling processing. After processing, the power head of the equipment resets upward, and then the servo motor 106 is actuated to drive the second gear 107 to rotate, and the second gear 107 drives the first gear 105 to rotate, so as to realize the rotation of the rotating shaft 103, and finally the turntable 104 is rotated. The disk 104 can be rotated, so that the workpiece rotates and is positioned to the next processing point. After positioning, when the servo motor 106 stops, it locks the shaft through its own brake mechanism. Under the engagement of the first gear 105 and the second gear 107, the hydraulic cylinder 111 further pushes out the anti-slip plate 112, so that the turntable 104 can be stably stopped, and then processing can be carried out again, thereby achieving the need for secondary clamping and positioning of the brake drum during brake drum drilling, effectively reducing the positioning error of the brake drum, and helping to improve the drilling processing accuracy and quality.

[0028] Embodiment 2:

[0029] like Figure 3 As shown, Figure 3 20 is a schematic diagram of the overall structure of a brake drum processing tool. On the basis of the first embodiment, the utility model provides a brake drum processing tool, wherein the auxiliary device further includes a shield 201 and a guard plate 202 .

[0030] The shield 201 is fixedly connected to the support frame 102 and buckled on the outside of the servo motor 106; the guard plate 202 is fixedly connected to the support frame 102 and is located at the front and rear sides of the support frame 102. A cable hole is provided on the bottom of the back of the shield 201, which is convenient for preventing external liquid from entering the interior. The shield 201 is installed on the support frame 102 by bolts, and the guard plate 202 is installed on the support frame 102 by bolts.

[0031] In this embodiment, the servo motor 106 can be protected during operation by providing the protective cover 201 , and the working areas of the first gear 105 and the second gear 107 can be safely isolated and protected by providing the protective plate 202 .

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A brake drum processing tool, comprising a base plate and a support frame, wherein the support frame is fixedly connected to the base plate and is located on the base plate, characterized in that: Also includes auxiliary devices; The auxiliary device comprises a rotating shaft, a rotating disk, a first gear, a servo motor, a second gear, a limiting assembly and a supporting assembly, wherein the rotating shaft is rotatably connected to the supporting frame and is located on the supporting frame, the rotating disk is fixedly connected to the rotating shaft and is located on the top of the rotating shaft, a fixture is installed on the rotating disk, the first gear is fixedly connected to the rotating shaft and is located at the bottom of the rotating shaft, the servo motor is fixedly connected to the supporting frame and is located on a side of the supporting frame close to the rotating disk, the second gear is fixedly connected to the output shaft of the servo motor and meshes with the first gear and is located on the output shaft of the servo motor, the limiting assemblies are respectively arranged on the supporting frame and the rotating shaft, and the supporting assembly is arranged below the rotating disk; The servo motor is provided with a brake mechanism and an encoder.

2. The brake drum processing tool as claimed in claim 1, characterized in that: The limiting assembly includes a limiting cover and a locking wire ring. The limiting cover is fixedly connected to the support frame and is located on a side of the support frame close to the rotating shaft. The locking wire ring is threadedly connected to the rotating shaft and is located on the rotating shaft.

3. The brake drum processing tool as claimed in claim 1, characterized in that: The support assembly includes a fixing seat and an action component. The fixing seat is fixedly connected to the support frame and is arranged on both sides of the rotating shaft; the action component is arranged on a side of the fixing seat close to the rotating disk.

4. The brake drum processing tool as claimed in claim 3, characterized in that: The action component includes a hydraulic cylinder and an anti-skid plate. The hydraulic cylinder is fixedly connected to the fixing seat and is located on the fixing seat; the anti-skid plate is connected to the output end of the hydraulic cylinder and is located on the output end of the hydraulic cylinder.

5. The brake drum processing tool as claimed in claim 1, characterized in that: The auxiliary device also includes a shield and a shield plate. The shield is fixedly connected to the support frame and is buckled on the outside of the servo motor. The shield plate is fixedly connected to the support frame and is located at the front and rear sides of the support frame.

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