A corner polishing device for a circuit breaker plastic housing

Abstract

The utility model relates to industrial processing technical field especially relates to a corner polishing device of circuit breaker plastic shell, including machine tool, control panel, first electric slide rail, second electric slide rail, first servo motor, mounting panel and bearing roller, and the control panel is arranged in machine tool front side, and the first electric slide rail is installed in the machine tool inside, and the first electric slide rail is slidably provided with the second electric slide rail, and the first servo motor is installed in the second electric slide rail front side, and the output shaft of first servo motor is fixedly connected with mounting panel, and three bearing rollers are installed in mounting panel three corners respectively. The utility model is through the collaborative operation of first electric slide rail, second electric slide rail and first servo motor, the rotation cooperation of rotary seat and the flexible abrasive band driven by second servo motor, and the comprehensive, accurate and automatic edge polishing processing effect of circuit breaker plastic shell is carried out.

Description

Technical Field

[0001] This utility model relates to the field of industrial processing technology, and in particular to a device for grinding the edges and corners of a circuit breaker plastic housing. Background Technology

[0002] The plastic housing of a circuit breaker is a key structural component in low-voltage electrical appliances. It needs to house precision components such as contact systems and arc extinguishing devices. Therefore, it has high requirements for the dimensional accuracy and edge quality of the housing. Such housings are usually made of engineering plastics through injection molding. Flashes and burrs are easily generated at the parting surface, ejector pin position, etc., which need to be polished to ensure assembly accuracy, safety of use and appearance quality.

[0003] Existing grinding methods have obvious limitations. Traditional equipment lacks the ability to coordinate multi-degree-of-freedom motion, resulting in residual flash or over-grinding. Operators need to adjust the clamping position multiple times and supplement it with manual grinding, resulting in low processing efficiency and poor product consistency.

[0004] Therefore, there is an urgent need to develop a grinding device for the edges and corners of circuit breaker plastic housings to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of traditional equipment that lacks multi-degree-of-freedom coordinated motion capabilities, resulting in residual burrs or over-grinding, a grinding device for the edges and corners of circuit breaker plastic housings is provided.

[0006] The technical solution of this utility model is as follows: a grinding device for the edges and corners of a circuit breaker plastic housing, comprising a machine tool, a control panel, a first electric slide rail, a second electric slide rail, a first servo motor, a mounting plate, bearing rollers, a flexible sanding belt, a second servo motor, and a pulley assembly. The control panel is located on the front side of the machine tool. The first electric slide rail is installed inside the machine tool. The second electric slide rail is slidably mounted on the first electric slide rail. The first servo motor is mounted on the front side of the second electric slide rail. The output shaft of the first servo motor is fixedly connected to the mounting plate and can drive the mounting plate to rotate. Three bearing rollers are respectively installed at the three corners of the mounting plate. The three bearing rollers together... The machine tool is covered with a flexible sanding belt, and a second servo motor is also mounted on the mounting plate. The output shaft of the second servo motor is connected to the bearing roller in the upper left corner through a pulley set, which can drive the flexible sanding belt. The first electric slide rail, the second electric slide rail, the first servo motor and the second servo motor are all electrically connected to the control panel. The machine tool also includes a mounting block, a mounting bracket, a third servo motor and a rotary seat. The mounting block is fixedly installed inside the machine tool, and the mounting bracket is mounted on the mounting block. The third servo motor is also installed inside the machine tool. The output shaft of the third servo motor passes through the mounting bracket and is fixedly connected to the rotary seat. The third servo motor is electrically connected to the control panel.

[0007] Optionally, it also includes elastic elements, sliding blocks, and clamping plates. Four sliding blocks are slidably arranged inside the rotating seat. Two elastic elements are connected between each sliding block and the rotating seat. A clamping plate is fixedly connected to the top of each sliding block. The circuit breaker plastic housing is sleeved on the outside of the four clamping plates. Under the outward stretching action of the elastic elements, the outer side of the clamping plate is tightly attached to the inner wall of the housing, thereby achieving the internal clamping and fixing of the workpiece.

[0008] Optionally, it also includes a fan, a collection box, a handle, a pull-out plate, and a filter assembly. The fan is installed inside the machine tool, and the collection box is slidably installed under the machine tool. The discharge port under the machine tool is connected to the feed port of the collection box. A handle is installed on the front side of the collection box, and a pull-out plate is slidably installed inside the collection box. The pull-out plate can be pulled out from the collection box. A detachable filter assembly is installed on the pull-out plate, and an air outlet is also provided on the front side of the collection box.

[0009] Optionally, it also includes lighting, with lighting installed above the working area inside the machine tool.

[0010] Optionally, it also includes a cushioned hand pad, which covers the handle.

[0011] Optionally, it also includes friction pads, with friction pads attached to the outer sides of all four plates.

[0012] This utility model has the following advantages: Through the coordinated operation of the first electric slide rail, the second electric slide rail and the first servo motor, this utility model realizes the precise positioning and angle adjustment of the mounting plate in three-dimensional space. Combined with the rotation of the rotating seat and the flexible sanding belt driven by the second servo motor, the grinding device can accurately contact the edges and corners of the workpiece from multiple directions, achieving a comprehensive and precise automated edge grinding effect on the plastic housing of the circuit breaker.

[0013] This invention uses an elastic element to push the sliding block and the clamping plate outward, so that the outer side of the clamping plate is tightly attached to the inner wall of the plastic shell, forming a reliable internal support and fixation. This achieves the effect of adapting to the internal structure of shells of different sizes and ensuring that the workpiece is stable and does not fall out of position during high-speed grinding.

[0014] This invention uses a fan to generate negative pressure airflow, which draws the grinding debris into the collection box. After being filtered by a detachable filter assembly, clean air is discharged from the outlet. Combined with the sliding collection box and pull-out plate design, it achieves the effect of efficiently collecting grinding debris, facilitating cleaning, and maintaining a clean working environment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the machine tool, the second electric slide rail, and the flexible sanding belt of this utility model.

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the mounting plate, bearing roller, and second servo motor of this utility model.

[0018] Figure 4 This is a three-dimensional structural cross-sectional view of the mounting bracket, the third servo motor, and the rotary base of this utility model.

[0019] Figure 5 This is a three-dimensional structural cross-sectional view of the rotating seat, sliding block, and clamping plate of this utility model.

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the machine tool, fan, and collection box of this utility model.

[0021] Figure 7 This is a three-dimensional structural cross-sectional view of the collection box, pull-out plate, and filter assembly of this utility model.

[0022] Figure 8 This is a three-dimensional structural cross-sectional view of the machine tool and lighting lamp of this utility model.

[0023] The meanings of the reference numerals in the figure are as follows: 1: Machine tool, 101: Control panel, 2: First electric slide rail, 3: Second electric slide rail, 4: First servo motor, 5: Mounting plate, 6: Bearing roller, 601: Flexible sanding belt, 7: Second servo motor, 8: Pulley assembly, 9: Mounting block, 10: Mounting bracket, 11: Third servo motor, 12: Rotary seat, 13: Elastic element, 14: Sliding block, 15: Clamping plate, 16: Fan, 17: Collection box, 1701: Handle, 18: Pull-out plate, 1801: Filter assembly, 19: Lighting lamp, 20: Buffer hand pad, 21: Friction pad. Detailed Implementation

[0024] Example: A device for grinding the edges and corners of a circuit breaker's plastic housing, such as... Figures 1-4As shown, the machine tool includes a machine tool 1, a control panel 101, a first electric slide rail 2, a second electric slide rail 3, a first servo motor 4, a mounting plate 5, bearing rollers 6, a flexible sanding belt 601, a second servo motor 7, and a pulley assembly 8. The control panel 101 is located on the front side of the machine tool 1. A lighting lamp 19 is installed above the working area inside the machine tool 1. The first electric slide rail 2 is installed inside the machine tool 1, and the second electric slide rail 3 is slidably mounted on the first electric slide rail 2. The first servo motor 4 is mounted on the front side of the second electric slide rail 3. The output shaft of the first servo motor 4 is fixedly connected to the mounting plate 5 and can drive the mounting plate 5 to rotate. Three bearing rollers 6 are respectively installed at the three corners of the mounting plate 5, and the flexible sanding belt 6 covers all three bearing rollers 6. 01. A second servo motor 7 is also installed on the mounting plate 5. The output shaft of the second servo motor 7 is connected to the bearing roller 6 in the upper left corner through the pulley group 8, which can drive the flexible sanding belt 601. The first electric slide rail 2, the second electric slide rail 3, the first servo motor 4 and the second servo motor 7 are all electrically connected to the control panel 101. The machine tool also includes a mounting block 9, a mounting bracket 10, a third servo motor 11 and a rotary seat 12. The mounting block 9 is fixedly installed inside the machine tool 1. The mounting bracket 10 is installed on the mounting block 9. The third servo motor 11 is also installed inside the machine tool 1. The output shaft of the third servo motor 11 passes through the mounting bracket 10 and is fixedly connected to the rotary seat 12. The third servo motor 11 is electrically connected to the control panel 101.

[0025] When this device is needed, first place the circuit breaker plastic housing on the surface of the rotating base 12. After starting the system through the control panel 101, the first electric slide rail 2 and the second electric slide rail 3 work together to drive the first servo motor 4 and the mounting plate 5 to position them precisely. At the same time, the second servo motor 7 drives the bearing roller 6 to rotate through the pulley group 8, so that the flexible sanding belt 601 maintains a high-speed transmission state. The first servo motor 4 adjusts the angle of the mounting plate 5 in real time, which cooperates with the rotation of the rotating base 12, so that the flexible sanding belt 601 can accurately contact the edges and corners of the workpiece from multiple directions to complete a comprehensive and precise edge grinding process.

[0026] like Figures 4-5 As shown, it also includes elastic elements 13, sliding blocks 14, and clamping plates 15. Four sliding blocks 14 are slidably arranged inside the rotating seat 12. Two elastic elements 13 are connected between each sliding block 14 and the rotating seat 12. A clamping plate 15 is fixedly connected to the top of each sliding block 14. Friction pads 21 are pasted on the outer side of each of the four clamping plates 15. The circuit breaker plastic housing is fitted on the outside of the four clamping plates 15. Under the outward stretching action of the elastic elements 13, the outer side of the clamping plate 15 is tightly attached to the inner wall of the housing, thereby achieving the internal clamping and fixing of the workpiece.

[0027] After initial positioning, the plastic housing is fitted onto the outside of the four clamping plates 15. The elastic element 13 provides a continuous outward pulling force through the sliding block 14, pushing the outer side of the clamping plate 15 to fit tightly against the inner wall of the housing, forming a reliable internal support and fixation. This fixing method can adapt to the internal structure of housings of different sizes and ensure that the workpiece does not shift during high-speed grinding, providing the necessary fixing conditions for precise grinding.

[0028] like Figures 6-8 As shown, it also includes a fan 16, a collection box 17, a handle 1701, a pull-out plate 18, and a filter assembly 1801. The fan 16 is installed inside the machine tool 1. The collection box 17 is slidably arranged below the machine tool 1. The discharge port below the machine tool 1 is connected to the feed port of the collection box 17. The handle 1701 is installed on the front side of the collection box 17. The handle 1701 is covered with a cushioning hand pad 20. The pull-out plate 18 is slidably arranged inside the collection box 17. The pull-out plate 18 can be pulled out from the collection box 17. The detachable filter assembly 1801 is installed on the pull-out plate 18. An air outlet is also opened on the front side of the collection box 17.

[0029] During the grinding operation, the supporting dust removal system operates simultaneously. The fan 16 inside the machine tool 1 continuously generates negative pressure airflow, which draws the plastic debris and dust generated during grinding into the collection box 17 through the discharge port. When the dust-laden air passes through the detachable filter assembly 1801 on the pull-out plate 18 in the collection box 17, the debris is effectively filtered and trapped. The purified air is discharged from the air outlet on the front side of the collection box 17, while the collected debris is retained in the pull-out plate 18. When cleaning is required, the operator can pull out the collection box 17 through the handle 1701 and further pull out the pull-out plate 18 to easily remove the accumulated debris and maintain a clean working environment.

Claims

1. A device for grinding the edges and corners of a circuit breaker plastic housing, characterized in that, The machine tool includes a machine tool (1), a control panel (101), a first electric slide rail (2), a second electric slide rail (3), a first servo motor (4), a mounting plate (5), bearing rollers (6), a flexible sanding belt (601), a second servo motor (7), and a pulley assembly (8). The control panel (101) is located on the front side of the machine tool (1). The first electric slide rail (2) is installed inside the machine tool (1). The second electric slide rail (3) is slidably mounted on the first electric slide rail (2). The first servo motor (4) is mounted on the front side of the second electric slide rail (3). The output shaft of the first servo motor (4) is fixedly connected to the mounting plate (5) and can drive the mounting plate (5) to rotate. The three bearing rollers (6) are respectively installed at the three corners of the mounting plate (5). The three bearing rollers (6) are covered with a flexible sanding belt (601). The mounting plate (5) is also equipped with... There is a second servo motor (7), the output shaft of the second servo motor (7) is connected to the bearing roller (6) in the upper left corner through the pulley group (8), which can drive the flexible sanding belt (601) transmission. The first electric slide rail (2), the second electric slide rail (3), the first servo motor (4) and the second servo motor (7) are all electrically connected to the control panel (101). It also includes a mounting block (9), a mounting frame (10), a third servo motor (11) and a rotary seat (12). The mounting block (9) is fixedly installed inside the machine tool (1), and the mounting frame (10) is installed on the mounting block (9). The third servo motor (11) is also installed inside the machine tool (1). The output shaft of the third servo motor (11) passes through the mounting frame (10) and is fixedly connected to the rotary seat (12). The third servo motor (11) is electrically connected to the control panel (101).

2. The edge grinding device for a circuit breaker plastic housing as described in claim 1, characterized in that, It also includes elastic elements (13), sliding blocks (14) and clamping plates (15). The rotating seat (12) has four sliding blocks (14) inside. Each sliding block (14) is connected to the rotating seat (12) by two elastic elements (13). Each sliding block (14) is fixedly connected to a clamping plate (15). The circuit breaker plastic housing is fitted on the outside of the four clamping plates (15). Under the action of the elastic elements (13) stretching outward, the outer side of the clamping plate (15) is tightly attached to the inner wall of the housing, so as to tighten and fix the workpiece from the inside.

3. The edge grinding device for a circuit breaker plastic housing as described in claim 2, characterized in that, It also includes a fan (16), a collection box (17), a handle (1701), a pull plate (18), and a filter assembly (1801). The fan (16) is installed inside the machine tool (1). The collection box (17) is slidably installed below the machine tool (1). The discharge port below the machine tool (1) is connected to the feed port of the collection box (17). The handle (1701) is installed on the front side of the collection box (17). The pull plate (18) is slidably installed inside the collection box (17). The pull plate (18) can be pulled out from the collection box (17). The detachable filter assembly (1801) is installed on the pull plate (18). An air outlet is also opened on the front side of the collection box (17).

4. The edge grinding device for a circuit breaker plastic housing as described in claim 3, characterized in that, It also includes a lighting lamp (19), which is installed above the working area inside the machine tool (1).

5. The edge grinding device for a circuit breaker plastic housing as described in claim 4, characterized in that, It also includes a cushioned hand pad (20), and the handle (1701) is covered with a cushioned hand pad (20).

6. The edge grinding device for a circuit breaker plastic housing as described in claim 5, characterized in that, It also includes friction pads (21), and friction pads (21) are pasted on the outer sides of the four card plates (15).

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