Silver contact deburring device

Abstract

The utility model relates to the technical field of switch contact machining, in particular to a silver contact deburring device which comprises a workbench, a centering assembly, a clamping assembly and a polishing assembly. In the centering assembly, forward and reverse thread screws are rotationally arranged in sliding holes symmetrically formed in the front side and the rear side of a supporting frame; and two groups of sliding blocks which are symmetrically arranged and are in threaded connection with the positive and negative tooth screw rod are further arranged in the sliding hole, and centering frames are arranged on the two groups of sliding blocks located on the same left and right sides. When the silver contacts with different sizes are placed, the sliding block can be driven by the motor to drive the centering frame to adjust the distance, so that the silver contacts can be conveniently matched and centered in the width direction, the centering frame can accurately position the silver contacts from the two sides, the silver contacts are located at proper machining positions, and the machining efficiency is improved. And the clamping assembly located in the center of the centering frame is matched to stably position the materials, then the materials are comprehensively polished through the polishing assembly, the positions of the materials are conveniently adjusted, and the materials of different specifications are conveniently fixed.

Description

Technical Field

[0001] This utility model relates to the field of switch contact processing technology, specifically a deburring device for silver contacts. Background Technology

[0002] In some cases where silver contacts are manufactured using a casting process, if the mold design is inappropriate or the casting process parameters are not properly controlled, the surface of the silver contacts may become uneven, resulting in excess metal protrusions and burrs. For example, if the position and size of the gating gate are unsuitable, metal accumulation may occur near the gating gate after the liquid silver is injected into the mold, forming burrs upon cooling. Alternatively, uneven cooling during casting may cause inconsistent shrinkage in different parts of the silver contacts, also resulting in surface protrusions and burrs.

[0003] If it is not polished, it is easy to cause increased contact resistance and signal transmission interference. Traditional polishing structures can only perform limited polishing on materials of a single specification, which has high limitations. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a deburring device for silver contacts.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a deburring device for silver contacts, comprising a worktable, a centering assembly, a clamping assembly, and a grinding assembly. The centering assembly includes a bracket with an upwardly open U-shape, a support frame, a cover, a worm gear, a worm, a motor, a forward and reverse threaded screw, a slider, and a centering frame. The bracket is mounted on the worktable, and the support frame is mounted above the two free ends of the bracket. The support frame has symmetrically arranged sliding holes on its front and rear sides. A forward and reverse threaded screw is rotatably mounted within the sliding holes. Two sets of symmetrically arranged screws are also mounted within the sliding holes. The slider is connected by a screw thread. Two sets of sliders on the same side are equipped with centering frames. A cover is provided on one side of the support frame. A worm and two sets of worm wheels are provided inside the cover. The worm meshes with the two sets of worm wheels. The motor output end passes through the cover and is connected to the worm. The positive and negative thread screw passes through the support frame and the cover and is connected to the center of the worm wheel. A clamping groove is also provided on the side of the centering frame near the center of the sliding hole. The clamping assembly is provided at the center of the bottom wall of the centering frame. A grinding assembly for grinding materials is also provided on the worktable.

[0008] To fix the contact, the present invention is improved by including a first lifting device and a lifting plate in the clamping assembly, wherein the output end of the first lifting device passes through the bottom wall of the centering frame and is connected to the lifting plate.

[0009] To ensure the stability of the lifting plate's movement, this utility model is improved by providing a guide hole on the support frame and a guide rod that penetrates the bottom wall of the centering frame and the guide hole below the lifting plate.

[0010] To facilitate adjustment of the polishing position, the present invention is improved in that the polishing component includes a frame with a downwardly open U-shape, a second lifter, a moving component, and a polisher. The first lifter passes through the frame and is connected to the top wall of the moving component. The polisher is provided at the output end of the moving component.

[0011] Preferably, the workbench is also provided with support legs at the four corners below.

[0012] To facilitate the collection of waste, this utility model is improved by providing a waste frame on the workbench, with a notch in the center of the waste frame that matches the support.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a deburring device for silver contacts, which has the following beneficial effects:

[0015] In this silver contact deburring device, the centering assembly contains symmetrically arranged sliding holes on both sides of the support frame, each housing a positive and negative threaded screw. Two sets of symmetrically arranged sliders, threaded to the positive and negative threaded screws, are also located within these sliding holes. Centering frames are mounted on the two sets of sliders on the same left and right sides. A motor drives a worm gear to rotate, which in turn drives a meshing worm wheel. Since the positive and negative threaded screws pass through the support frame and the cover and are connected to the center of the worm wheel, the rotation of the worm wheel drives the positive and negative threaded screws to rotate. Because the threads on both sides of the positive and negative threaded screws have opposite directions of rotation, according to the principle of helical transmission, the two sets of sliders will move in opposite directions in a linear motion, thereby causing the centering frames to move synchronously. When placing silver contacts of different sizes, the slider can be driven by a motor to adjust the spacing of the centering frame, which facilitates the matching and centering of the silver contacts in both width and narrow directions. This ensures that the centering frame can accurately position the silver contacts from both sides, placing them in the appropriate processing position. The clamping component located in the center of the centering frame can stably position the material. Then, the grinding component can be used to fully grind the material, making it easy to adjust the position of the material and fix materials of different specifications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2The structure of this utility model Figure 1 Enlarged view of a portion of the image;

[0018] Figure 3 This is a partial bottom view of the structure of this utility model;

[0019] Figure 4 This is a partial schematic diagram of the structure of this utility model.

[0020] In the diagram: 1. Workbench; 2. Bracket; 3. Support frame; 4. Cover; 5. Worm gear; 6. Worm; 7. Motor; 8. Threaded screw; 9. Slider; 10. Centering frame; 11. First lifter; 12. Lifting plate; 13. Guide rod; 14. Frame; 15. Second lifter; 16. Moving component; 17. Grinder; 18. Support leg; 19. Waste chip box. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 A deburring device for silver contacts includes a worktable 1, a centering assembly, a clamping assembly, and a grinding assembly. The centering assembly includes a bracket 2 with an upwardly open U-shape, a support frame 3, a cover 4, a worm gear 5, a worm 6, a motor 7, a screw 8 with both positive and negative threads, a slider 9, and a centering frame 10. The bracket 2 is mounted on the worktable 1. The support frame 3 is positioned above the two free ends of the bracket 2. The support frame 3 has symmetrical sliding holes on its front and rear sides. The screw 8 with both positive and negative threads is rotatably mounted in the sliding holes. Two sets of sliders 9, symmetrically arranged and threaded to the screws 8, are also mounted in the sliding holes. Two sets of sliders 9 on the same side are provided with centering frames 10. A cover 4 is provided on one side of the support frame 3. A worm gear 6 and two sets of worm wheels 5 are provided inside the cover 4. The worm gear 6 meshes with the two sets of worm wheels 5. The output end of the motor 7 passes through the cover 4 and is connected to the worm gear 6. The positive and negative thread screw 8 passes through the support frame 3 and the cover 4 and is connected to the center of the worm wheel 5. A clamping groove is also provided on the side of the centering frame 10 near the center of the sliding hole. The clamping assembly is provided at the center of the bottom wall of the centering frame 10. A grinding assembly for grinding materials is also provided on the worktable 1.

[0023] The workbench 1 serves as the basic load-bearing structure of the entire device. The four corner supports 18 provide stable support for the workbench 1, allowing it to be placed stably on the operating surface. The motor 7 in the centering assembly acts as the power source, its output end passing through the cover 4 and connecting to the worm gear 6. When the motor 7 starts, the rotational power output by the motor 7 is transmitted to the worm gear 6, causing it to rotate. Since the worm gear 6 meshes with two sets of worm wheels 5 inside the cover 4, according to the gear transmission principle, the rotation of the worm gear 6 will drive the two sets of worm wheels 5 to rotate synchronously. The threaded rod 8 passes through the support frame 3 and the cover 4 and is connected to the center of the worm wheels 5. Therefore, the rotation of the worm wheels 5 will drive the threaded rod 8 to rotate. The threaded rod 8 is located in sliding holes symmetrically arranged on the front and rear sides of the support frame 3, and there are also two sets of symmetrically arranged sliders 9 threadedly connected to the threaded rod 8 within the sliding holes. Due to the special structural design of the positive and negative thread screw 8, the threads on both sides are in opposite directions. According to the principle of screw transmission, when the positive and negative thread screw 8 rotates under the drive of the worm gear 5, the two sets of sliders 9 will move in opposite directions or in a straight line along the sliding hole. The two sets of sliders 9 located on the same side are equipped with centering frames 10, so the movement of sliders 9 will drive the centering frames 10 to move synchronously. When preparing to place silver contacts of different sizes, the operator can issue a command to the motor 7 to run according to the actual width of the silver contact, driving the forward and reverse thread screws 8 to rotate by the corresponding angle or number of turns, thereby moving the slider 9 to the appropriate position, so that the spacing between the centering frames 10 can match the width of the silver contact, ensuring that the centering frames 10 can accurately position the silver contact from both sides, so that the silver contact is in the appropriate processing position. In addition, the clamping groove set on the side of the centering frame 10 near the center of the sliding hole provides accurate position guidance for the subsequent clamping components to fix the silver contact, so that the silver contact can be stably in the processing state, which is convenient for precise deburring operation and improves the adaptability of the device to silver contacts of different specifications.

[0024] The clamping assembly is located in the middle of the centering frame 10 and is used to fix the silver contact. Then, the material is polished by the polishing assembly.

[0025] In actual use, the clamping assembly includes a first lifter 11 and a lifting plate 12. The output end of the first lifter 11 passes through the bottom wall of the centering frame 10 and is connected to the lifting plate 12. The first lifter 11 drives the lifting plate 12 to rise, which can clamp the material and place the material at a higher position so as to cooperate with the grinding assembly for grinding. The support frame 3 is also provided with a guide hole, and a guide rod 13 is provided below the lifting plate 12, which passes through the bottom wall of the centering frame 10 and the guide hole to ensure the stability of the lifting plate 12.

[0026] In actual use, the polishing assembly includes a frame 14 with a downward-opening U-shape, a second lifter 15, a moving component 16, and a polisher 17. The first lifter 11 passes through the frame 14 and is connected to the top wall of the moving component 16. The polisher 17 is provided at the output end of the moving component 16. The moving component 16 may include a sliding frame, a drive motor 7, a threaded rod, and a moving block to drive the polisher 17 to move. The frame 14 provides stable support for the second lifter 15.

[0027] In this embodiment, the workbench 1 is also provided with a waste chip frame 19. The waste chip frame 19 has a notch in the center that matches the support 2, and an opening is provided on the top of the waste chip frame 19 to facilitate the collection of waste chips.

[0028] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0029] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0030] Although embodiments of the present invention 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 the present invention.

Claims

1. A deburring device for silver contacts, comprising a worktable (1), a centering assembly, a clamping assembly, and a polishing assembly, characterized in that: The centering assembly includes an upper-opening C-shaped bracket (2), a support frame (3), a cover (4), a worm gear (5), a worm (6), a motor (7), a forward and reverse threaded screw (8), a slider (9), and a centering frame (10). The bracket (2) is mounted on the workbench (1). The support frame (3) is mounted above the two free ends of the bracket (2). The support frame (3) has symmetrical sliding holes on its front and rear sides. The forward and reverse threaded screw (8) is rotatably mounted in the sliding holes. Two sets of sliders (9) are also symmetrically arranged and threaded to the forward and reverse threaded screw (8) in the sliding holes. Centering is provided on the two sets of sliders (9) located on the same left and right sides. The frame (10) has a cover (4) on one side of the support frame (3). The cover (4) contains a worm (6) and two sets of worm wheels (5). The worm (6) meshes with the two sets of worm wheels (5). The output end of the motor (7) passes through the cover (4) and is connected to the worm (6). The positive and negative thread screw (8) passes through the support frame (3) and the cover (4) and is connected to the center of the worm wheel (5). The centering frame (10) also has a clamping groove on the side near the center of the sliding hole. The centering frame (10) has the clamping assembly at the center of the bottom wall. The worktable (1) also has a grinding assembly for grinding materials.

2. The silver contact deburring device according to claim 1, characterized in that: The clamping assembly includes a first lifter (11) and a lifting plate (12). The output end of the first lifter (11) passes through the bottom wall of the centering frame (10) and is connected to the lifting plate (12).

3. The silver contact deburring device according to claim 2, characterized in that: The support frame (3) is also provided with a guide hole, and a guide rod (13) is provided below the lifting plate (12) that passes through the bottom wall of the centering frame (10) and the guide hole.

4. The silver contact deburring device according to claim 3, characterized in that: The polishing assembly includes a frame (14) with a downward-opening U-shape, a second lifter (15), a moving assembly (16), and a polisher (17). The first lifter (11) passes through the frame (14) and is connected to the top wall of the moving assembly (16). The polisher (17) is provided at the output end of the moving assembly (16).

5. The silver contact deburring device according to claim 4, characterized in that: The workbench (1) is also provided with support legs (18) at the four corners below.

6. The silver contact deburring device according to claim 5, characterized in that: The workbench (1) is also provided with a waste chip frame (19), and the waste chip frame (19) has a notch in the center that is compatible with the support (2).

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