Automatic grinding device for thermosensitive assembly

Abstract

The utility model relates to the field of mechanical devices and automatic polishing, in particular to an automatic polishing device for a thermosensitive component, which comprises a rack and a support, a feeding mechanism is arranged on the rack, a polishing mechanism is arranged on the feeding mechanism, and the feeding mechanism can drive the polishing mechanism to move in the front-back direction and the left-right direction. The clamping servo motor and the clamping mechanism are oppositely arranged on the support and used for fixing a part to be polished, and the problems that existing thermosensitive assembly manual polishing operation is low in production efficiency, poor in polishing quality, low in part percent of pass, potential safety hazards exist in operation and the like are solved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical devices and automatic grinding, in particular to an automatic grinding device for a heat-sensitive component, which is designed for grinding weld nodules after spot welding of the heat-sensitive component. Background Art

[0002] Currently, the majority of spot welding cleaning of thermal components involves manual grinding. This involves the operator holding an electric brush head and pressing the thermal component to grind the weld bumps generated at the weld point. This grinding method relies on the high-speed rotation of the electric brush head to remove the weld bumps. During the grinding process, due to the round shape of the electric brush head and the relatively smooth surface of the thermal component, the electric brush head can easily slip on the thermal component, causing damage to the thermal component and failing to completely remove the weld bumps on the thermal component. In particular, the weld bumps at both ends of the spot welding position cannot be completely removed. If the weld bumps are not completely removed and enter the product, it is very likely to cause the thermal component to become stuck, resulting in failure of the high-precision signal device. Furthermore, this grinding method is single-piece grinding, meaning that only one product can be polished per operation. Utility Model Content

[0003] The purpose of this utility model is to propose an automatic polishing device for heat-sensitive components, which is used to solve the problems of low production efficiency, poor polishing quality, low parts qualification rate, and safety hazards in the current manual polishing of heat-sensitive components.

[0004] Technical solution:

[0005] An automatic polishing device for heat-sensitive components includes a frame, a support, a clamping servo motor and a clamping mechanism. The clamping servo motor and the clamping mechanism are relatively arranged on the support and are used to fix the heat-sensitive components to be polished. A feeding mechanism is arranged on the frame, and a polishing mechanism is arranged on the feeding mechanism. The feeding mechanism can drive the polishing mechanism to move in the front and back directions and the left and right directions to polish the heat-sensitive components.

[0006] Furthermore, it also includes a host computer, which is electrically connected to the PLC arranged in the power distribution cabinet.

[0007] Furthermore, the feeding mechanism includes a left-right moving mechanism and a front-back moving mechanism, the left-right moving mechanism is arranged on the surface of the frame, and the front-back moving mechanism is slidably arranged on the left-right moving mechanism.

[0008] Furthermore, the left and right moving mechanism includes two first slide rails arranged parallel to the surface of the frame, a first lead screw is arranged between the two first slide rails, the first end of the first lead screw is rotatably connected to the frame, and the other end is connected to an output shaft of the servo motor, the first sliding block is threadedly engaged with the first lead screw and slidingly engaged with the first slide rail.

[0009] Furthermore, the forward and backward moving mechanism includes two second slide rails arranged parallel to the upper surface of the first sliding block of the left and right moving mechanism. The second slide rails are perpendicular to the first slide rails. A second lead screw is arranged between the two second slide rails. The second lead screw is perpendicular to the first lead screw. The first end of the second lead screw is rotatably connected to the first sliding block, and the other end is connected to the second output shaft of the servo motor arranged on the first sliding block. The second sliding block is threadedly engaged with the second lead screw and slidingly engaged with the second slide rail.

[0010] Furthermore, the grinding mechanism is arranged on the second sliding block, and the grinding mechanism includes a skeleton. Three pulleys are arranged on the skeleton, and the three pulleys are located on the same plane. Sandpaper is sleeved on the outer cylindrical surfaces of the three pulleys. The sandpaper is connected to the output shaft of the grinding drive motor. The grinding drive motor rotates, driving the sandpaper to rotate on the outer cylindrical surfaces of the three pulleys.

[0011] Furthermore, the clamping mechanism includes a cylinder, the cylinder piston is connected to the clamping cone head, the clamping cone head cooperates with one end of the part to be polished to clamp, and the other end of the part to be polished is connected to the output shaft of the clamping servo motor, and the clamping servo motor can drive the part to be polished to rotate.

[0012] Furthermore, the PLC in the power distribution cabinet is electrically connected to the clamping servo motor, servo motor 1, servo motor 2, and polishing drive motor respectively.

[0013] Furthermore, a dust collection box is included, and the dust collection box is located directly below the part to be polished.

[0014] Beneficial effects:

[0015] The utility model is an automatic polishing device for heat-sensitive components. It can use a mechanical structure to clamp the heat-sensitive components. The compression and guiding setting mode can not only solve the damage to the heat-sensitive components caused by the sliding of the electric brush head during the polishing process, but also improve the polishing efficiency, changing the polishing of a single piece to the polishing of ten pieces, and can also achieve the purpose of automatic polishing.

[0016] The application of the utility model can improve the production efficiency of thermal component grinding by about 70%, and increase the grinding qualification rate from the original 50% to 100%, thereby realizing the purpose of transforming manual operation to automation. At the same time, while the automatic grinding operation is being carried out at this workstation, the operator can also go to the next workstation to operate, thereby indirectly achieving the purpose of saving manpower and realizing the needs of lean production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a left side view of the utility model;

[0019] Figure 3 It is a right side view of the utility model;

[0020] Among them, 1. Host computer, 2. Clamping servo motor, 3. Support, 4. Dust collection box, 5. Clamping mechanism, 6. Power distribution cabinet, 7. Rack, 8. Left and right moving mechanism, 9. Forward and backward moving mechanism, 10. Feeding mechanism, 11. Grinding mechanism, 12. First lead screw, 13. First slide rail, 14. First sliding block, 15. Second slide rail, 16. Second sliding block, 17. Skeleton, 18. Grinding drive motor, 19. Servo motor 1, 20. Cylinder, 21. Clamping cone head, 22. Servo motor 2, 23. Thermistor component. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] The features and illustrative embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific arrangement and method set forth below, but rather covers any improvements, replacements, and modifications of structures, methods, and devices without departing from the spirit of the present invention. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessary ambiguity in the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the embodiments can refer to and quote each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] This device is an automatic grinding device for heat-sensitive components 23. A feeding mechanism 10 and a grinding mechanism 11 are mounted on a frame 7 and controlled by a power distribution cabinet 6. The frame 7 is assembled from profiles and has feet underneath. The operating height of the entire device is adjustable by ±50mm.

[0025] At the same time, the feeding mechanism 10 on the table of the frame 7 includes a left-right moving mechanism 8 and a front-back moving mechanism 9. The left-right moving mechanism 8 is arranged on the surface of the frame 7, and the front-back moving mechanism 9 is slidably arranged on the left-right moving mechanism 8. Among them, the left-right moving mechanism 8 includes two first slide rails 13 arranged parallel to the surface of the frame 7. A first screw 12 is arranged between the two first slide rails 13. The first end of the first screw 12 is rotatably connected to the frame 7, and the other end is connected to the output shaft of the servo motor 19. The first sliding block 14 is threaded with the first screw 12. The front-rear moving mechanism 9 includes two second slide rails 15 arranged in parallel on the upper surface of the first slide block 14 of the left-right moving mechanism 8. The second slide rails 15 are perpendicular to the first slide rails 13. A second lead screw is arranged between the two second slide rails 15. The second lead screw is perpendicular to the first lead screw 12. The first end of the second lead screw is rotatably connected to the first slide block 14, and the other end is connected to the output shaft of the servo motor 22 arranged on the first slide block 14. The second slide block 16 is threadedly engaged with the second lead screw and slides with the second slide rail 15.

[0026] The grinding mechanism 11 is mounted on the second sliding block 16 and includes a frame 17. Three pulleys are mounted on the frame 17 and are located on the same plane. Sandpaper is mounted on the outer circumference of the three pulleys and is connected to the output shaft of a grinding drive motor 18. Rotation of the motor 18 drives the sandpaper to rotate on the outer circumference of the three pulleys. The left-right movement mechanism 8 and the front-back movement mechanism 9 are primarily responsible for adjusting the grinding position.

[0027] The clamping mechanism 5 includes a cylinder 20, the piston of the cylinder 20 is connected to the clamping cone head 21, the clamping cone head 21 cooperates with one end of the part to be polished to clamp, and the other end of the part to be polished is connected to the output shaft of the clamping servo motor 2, and the clamping servo motor 2 can drive the part to be polished to rotate.

[0028] When the grinding device is activated and the feed mechanism 10 is operating, servo motor 19 and servo motor 2 22 can control the left and right movement of the first slide block 14 and the forward and backward movement of the second slide block 16 according to the set parameters, thereby driving the grinding mechanism 11 to move forward, backward, left, and right to grind the thermal component 23. At the same time, after the clamping servo motor 2 and the clamping mechanism 5 jointly clamp the thermal component 23, the clamping servo motor 2 rotates according to the designed rotation angle, so that the part to be polished and the sandpaper on the feed mechanism 10 are polished.

[0029] The specific operation process is as follows:

[0030] During operation, turn on the power switch on the distribution cabinet 6, enter the touch screen of the upper computer 1 to set relevant parameters (including manual interface and automatic interface), and the grinding direction and grinding angle can be adjusted, and both manual and automatic operations can be performed. Enter the parameter setting interface, set the motion zero point, feed mechanism motion direction, clamping servo motor 2 rotation angle and other parameters, enter the automatic interface, and set the servo motor 1 19, servo motor 2 22 motor feed speed, motor feed parameters, and motor feed limit parameters respectively. Then perform the reset operation, so that the servo motor 19 drives the feed mechanism 10 to reset the zero point, and then put the thermal component 23 into the work position, double-click the start button on the host computer 1, and the PLC controls the servo motor 19 to drive the first screw 12 to rotate, and the first sliding block 14 moves on the first screw 12, driving the first sliding block 14 to move left and right. At the same time, the PLC controls the servo motor 22 to drive the second screw to rotate, and the second sliding block 16 moves on the second screw, driving the second sliding block 16 to move back and forth. The clamping servo motor 2 and the clamping mechanism 5 respectively clamp the parts to be polished, and the workpiece is taken out of the work station after polishing is completed.

[0031] The automatic cutting device of this utility model has been put into production and use, effectively solving the problems of low efficiency and poor polishing quality of manual polishing, meeting on-site production needs and ensuring product quality.

[0032] The utility model has the following features:

[0033] 1. This utility model uses a servo motor to drive a biaxial motion device to avoid product damage caused by insufficient grinding position;

[0034] 2. The thermal sensitive components are clamped by the clamping mechanism and the clamping servo motor, which does not damage the surface of the metal sheet and increases the friction;

[0035] 3. The utility model transmits data interactively with the PLC through a feeding device that can move in the front-back and left-right directions, and transmits the results of grinding distance and grinding depth to the PLC one by one and runs them one by one, which not only ensures the grinding quality but also realizes automated grinding, meets the grinding requirements of weld nodules after spot welding of heat-sensitive components, and improves production efficiency;

[0036] 4. Before the operation of this utility model, it is necessary to adjust the real-time position of the feed mechanism in front and behind and left and right directions to ensure that the welding nodule of the heat-sensitive component is facing the starting point of grinding;

[0037] 5. This utility model needs to be combined with different product requirements and an additional grinding mechanism should be designed to ensure the consistency of the synchronous operation of the thermal component and the feeding mechanism after being clamped by the clamping mechanism;

[0038] 6. In the running state of the utility model, the left and right moving mechanism and the front and back moving mechanism are moved to ensure that the grinding position is facing the weld nodule after each movement, and the grinding quality is ensured by coordinating the positioner speed and rotation angle;

[0039] 7. This product is suitable for grinding heat-sensitive components with a diameter of Φ10 to Φ50 mm or other parts with similar appearance.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should all be included in the protection scope of the present invention.

Claims

1. An automatic polishing device for heat-sensitive components, characterized in that: It includes a frame, a support, a clamping servo motor and a clamping mechanism. The clamping servo motor and the clamping mechanism are relatively arranged on the support and are used to fix the thermal component. A feeding mechanism is arranged on the frame, and a grinding mechanism is arranged on the feeding mechanism. The feeding mechanism can drive the grinding mechanism to move in the front and back directions and the left and right directions to grind the thermal component.

2. The automatic polishing device for heat-sensitive components according to claim 1, characterized in that: It also includes a host computer, which is electrically connected to the PLC arranged in the power distribution cabinet.

3. The automatic polishing device for heat-sensitive components according to claim 2, characterized in that: The feeding mechanism comprises a left-right moving mechanism and a front-back moving mechanism. The left-right moving mechanism is arranged on the surface of the frame, and the front-back moving mechanism is slidably arranged on the left-right moving mechanism.

4. The automatic polishing device for heat-sensitive components according to claim 3, characterized in that: The left and right moving mechanism includes two first slide rails arranged parallel to the surface of the frame, a first lead screw is arranged between the two first slide rails, the first end of the first lead screw is rotatably connected to the frame, and the other end is connected to an output shaft of the servo motor, the first sliding block is threadedly engaged with the first lead screw and slidingly engaged with the first slide rail.

5. The automatic polishing device for heat-sensitive components according to claim 4, characterized in that: The forward and backward moving mechanism includes two second slide rails arranged parallel to the upper surface of the first sliding block of the left and right moving mechanism. The second slide rails are perpendicular to the first slide rails. A second lead screw is arranged between the two second slide rails. The second lead screw is perpendicular to the first lead screw. The first end of the second lead screw is rotatably connected to the first sliding block, and the other end is connected to the second output shaft of the servo motor arranged on the first sliding block. The second sliding block is threadedly engaged with the second lead screw and slidably engaged with the second slide rail.

6. The automatic polishing device for heat-sensitive components according to claim 5, characterized in that: The grinding mechanism is arranged on the second sliding block, and the grinding mechanism includes a skeleton. Three pulleys are arranged on the skeleton. The three pulleys are located on the same plane. Sandpaper is sleeved on the outer cylindrical surfaces of the three pulleys. The sandpaper is connected to the output shaft of the grinding drive motor. The grinding drive motor rotates, driving the sandpaper to rotate on the outer cylindrical surfaces of the three pulleys.

7. The automatic polishing device for heat-sensitive components according to claim 6, characterized in that: The clamping mechanism includes a cylinder, a cylinder piston connected to a clamping cone head, the clamping cone head cooperates with one end of the part to be polished to clamp, and the other end of the part to be polished is connected to the output shaft of the clamping servo motor, and the clamping servo motor can drive the part to be polished to rotate.

8. The automatic polishing device for heat-sensitive components according to claim 7, characterized in that: The PLC in the power distribution cabinet is electrically connected to the clamping servo motor, servo motor 1, servo motor 2, and grinding drive motor respectively.

9. The automatic polishing device for heat-sensitive components according to claim 7, characterized in that: Also included is a dust collection box that is located directly below the part being sanded.

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