Electrode cap dressing device

Abstract

The utility model discloses an electrode cap is with grinding device belongs to grinding device technical field, including base, the top fixedly connected with upside -down L shape seat of base, the lateral wall department fixedly connected with fixed base of L shape seat, the inside rotatory connection has rotating seat of fixed base. The utility model discloses a rotating seat and polishing disc are set up, and two polishing pads of upper and lower are set up in each polishing disc, so can carry out the grinding of two electrode caps simultaneously, and the interference fit of electrode cap is clamped on the connecting rod, and the electrode cap is inserted into the polishing disc and is ground through the upper and lower two hydraulic rods simultaneously, when needing to change the grinding shape, can control the servo motor work through the controller, and the servo motor drives the rotating seat to rotate, and the polishing disc with the polishing pad of suitable shape is rotated to the corresponding position and is ground, saves the time of replacing the polishing pad, saves time and labour, and the overall use effect and work efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, specifically a grinding device for electrode caps. Background Technology

[0002] Electrode caps are a type of welding electrode used in resistance welding equipment, such as fixed spot welding machines, suspended spot welding machines, and robotic spot welding machines. They are called electrode caps because they are fitted onto the electrode connecting rod. The material is mostly chromium zirconium copper, but there is also dispersed copper. After a certain number of welding cycles, they need to be re-polished due to wear. At this time, an electrode cap re-polishing device is needed to polish and grind them again.

[0003] Existing electrode cap grinding devices can generally only grind a single electrode cap in actual use. Furthermore, when it is necessary to grind the electrode cap into different shapes, the grinding head needs to be replaced, which is time-consuming and affects the overall work efficiency, making it inconvenient to use. Therefore, there is an urgent need to improve the technology of the electrode cap grinding device structure to perfect this equipment. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for electrode caps. Each polishing disc is equipped with two polishing pads, allowing for simultaneous grinding of two electrode caps. The electrode caps are interference-fitted onto a connecting rod, and the upper and lower hydraulic rods simultaneously drive the electrode caps into the polishing discs for grinding. When the grinding shape needs to be changed, a servo motor can be controlled by a controller to rotate the rotating seat, moving the polishing disc with the appropriate polishing pads to the corresponding position for grinding. This saves time and effort in changing the polishing pads, improving overall performance and work efficiency, and solving the problems currently found in the market mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for electrode caps, comprising a base, an inverted L-shaped seat fixedly connected to the top of the base, a fixed seat fixedly connected to the side wall of the L-shaped seat, a rotating seat rotatably connected inside the fixed seat, a servo motor embedded inside the base, a drive shaft fixedly connected to the output end of the servo motor, the drive shaft extending to the outside of the base and rotatably connected to the base, the drive shaft being fixedly connected to the middle of the bottom end of the rotating seat, and four through slots being provided at the top of the rotating seat, each of the four through slots containing a polishing disc. The rotating seat is driven to rotate the polishing disc through a transmission mechanism. The polishing disc has two polishing blades, one upper and one lower, with the blades having pointed, flat, round, and spherical shapes, respectively. Hydraulic rods are fixedly connected to the inner top wall of the L-shaped seat and the top wall of the base. The two hydraulic rods are arranged opposite each other. A connecting rod is fixedly connected to the other end of each hydraulic rod. The connecting rod is engaged with the electrode cap through an interference fit. The outer end of the connecting rod is threaded. A sealing dust collection mechanism is provided on the outside of the connecting rod to absorb the debris generated during the polishing of the electrode cap.

[0006] Preferably, the rotating base has a groove inside, which is connected to four open slots. A drive gear is rotatably connected in the center of the groove, and four driven gears are meshed at the outer end of the drive gear. The driven gears correspond one-to-one with the polishing disc. A drive motor is mounted at the center of the top of the rotating base, and the output end of the drive motor extends into the interior of the rotating base and is fixedly connected to the center of the drive gear.

[0007] Preferably, the four driven gears are fixedly connected to the outer ends of the four polishing discs in a one-to-one correspondence, and the centers of the driven gears and the cross-sections of the polishing discs coincide.

[0008] Preferably, the outer end of the connecting rod is threaded with a sealing cover, the outer end of the sealing cover is provided with a sliding groove, a tension spring is fixedly connected to the inner wall of the sliding groove, a movable cover is sleeved on the outside of the sealing cover, the other end of the tension spring is fixedly connected to the end of the movable cover, the outer end of the sealing cover is connected to a suction pipe, and the other end of the suction pipe is connected to an exhaust fan.

[0009] Preferably, the cross-section of the chute is annular, and the movable cover and the chute are slidably connected.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a rotating base and polishing discs. Each polishing disc contains two polishing pads, one upper and one lower. When the controller operates the drive motor, it rotates the drive gear. The drive gear, through meshing with the driven gear, causes the polishing disc to rotate, allowing simultaneous grinding of both electrode caps. The electrode caps are interference-fitted onto the connecting rod, and two hydraulic rods simultaneously insert the electrode caps into the polishing discs for grinding. When the grinding shape needs to be changed, the controller can operate a servo motor, which rotates the rotating base to move the polishing disc with the appropriate polishing pads to the corresponding position for grinding. This saves time and effort by replacing the polishing pads, improving overall usability and work efficiency.

[0011] This invention features a sealing cover threaded onto a connecting rod. When the hydraulic rod operates, it moves the electrode cap threaded onto the connecting rod, causing the sealing cover to move as well. The moving cover continues to move until the electrode cap is inserted into the polishing disc, thanks to its elastic connection with a tension spring. This prevents gaps between the sealing cover and the rotating seat, and accommodates electrode caps of varying lengths, offering wide applicability and flexibility. Finally, a fan at the outer end of the suction pipe extracts debris from the sealing cover, preventing it from scattering and improving safety. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the grinding device of this utility model; Figure 2 This is a top view sectional diagram of the rotating base of this utility model; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the grinding device of this utility model; Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1. Base; 2. L-shaped seat; 3. Fixed seat; 4. Rotating seat; 5. Servo motor; 6. Drive shaft; 7. Groove; 8. Drive gear; 9. Driven gear; 10. Opening slot; 11. Polishing disc; 12. Drive motor; 13. Hydraulic rod; 14. Connecting rod; 15. Sealing cover; 16. Slide groove; 17. Moving cover; 18. Suction pipe; 19. Tension spring. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1 to 4 This utility model provides a technical solution: a grinding device for electrode caps, including a base 1, an inverted L-shaped seat 2 fixedly connected to the top of the base 1, a fixed seat 3 fixedly connected to the side wall of the L-shaped seat 2, a rotating seat 4 rotatably connected inside the fixed seat 3, a servo motor 5 embedded inside the base 1, a drive shaft 6 fixedly connected to the output end of the servo motor 5, the drive shaft 6 extending to the outside of the base 1 and forming a rotatable connection with the base 1, the drive shaft 6 being fixedly connected to the middle of the bottom end of the rotating seat 4, and four through slots 10 penetrating the top of the rotating seat 4, each of the four through slots 10 containing a polishing disc 11. The internal transmission mechanism of the rotating base 4 drives the polishing disc 11 to rotate. The polishing disc 11 has two polishing pads, one upper and one lower. The polishing pads in the polishing disc 11 are respectively pointed, flat, round and spherical. The inner top wall of the L-shaped base 2 and the top wall of the base 1 are both fixedly connected to hydraulic rods 13. The two hydraulic rods 13 are arranged opposite each other. The other end of the hydraulic rod 13 is fixedly connected to a connecting rod 14. The connecting rod 14 is engaged with the electrode cap through an interference fit. The outer end of the connecting rod 14 is threaded. The outside of the connecting rod 14 is equipped with a sealing dust collection mechanism, which adsorbs the debris generated during the polishing of the electrode cap.

[0016] By setting up a rotating base 4 and polishing discs 11, each polishing disc 11 is equipped with two polishing pads, one upper and one lower. When the controller controls the drive motor 12 to work, the drive motor 12 can drive the drive gear 8 to rotate. The drive gear 8, through meshing with the driven gear 9, drives the polishing disc 11 to rotate, so that two electrode caps can be ground simultaneously. The electrode caps are interference-fitted onto the connecting rod 14, and the upper and lower hydraulic rods 13 simultaneously drive the electrode caps to be inserted into the polishing disc 11 for grinding. When it is necessary to change the grinding shape, the controller can control the servo motor 5 to work. The servo motor 5 drives the rotating base 4 to rotate, and the polishing disc 11 with the appropriate shape polishing pads is rotated to the corresponding position for grinding. This saves time and effort in changing polishing pads, and improves the overall use effect and work efficiency.

[0017] Please see Figures 2 to 3The rotating base 4 has a groove 7 inside, which is connected to four open slots 10. A drive gear 8 is rotatably connected in the middle of the groove 7. Four driven gears 9 are meshed on the outer end of the drive gear 8. The driven gears 9 are in one-to-one correspondence with the polishing discs 11. A drive motor 12 is mounted on the top center of the rotating base 4. The output end of the drive motor 12 extends into the interior of the rotating base 4 and is fixedly connected to the middle of the drive gear 8. The four driven gears 9 are fixedly connected to the outer ends of the four polishing discs 11 in one-to-one correspondence. The center of the cross section of the driven gears 9 and the polishing discs 11 coincide.

[0018] By setting the polishing discs in the polishing disc 11 to be pointed, flat, round, and spherical respectively, the servo motor 5 can drive the rotating seat 4 to rotate when the controller controls the servo motor 5 to work, and rotate the polishing disc 11 with the polishing discs of the appropriate shape to the corresponding position for grinding, saving the time of replacing the polishing discs, saving time and effort.

[0019] Please see Figures 1 to 4 The outer end of the connecting rod 14 is threaded with a sealing cover 15. The outer end of the sealing cover 15 is provided with a groove 16. A tension spring 19 is fixedly connected to the inner wall of the groove 16. A movable cover 17 is fitted on the outside of the sealing cover 15. The other end of the tension spring 19 is fixedly connected to the end of the movable cover 17. The outer end of the sealing cover 15 is connected to a suction pipe 18. The other end of the suction pipe 18 is connected to an exhaust fan. The groove 16 has an annular cross section. The movable cover 17 and the groove 16 form a sliding connection.

[0020] The sealing cover 15 is threaded onto the connecting rod 14. When the hydraulic rod 13 works, it drives the electrode cap fitted onto the connecting rod 14 to move, which in turn drives the sealing cover 15 to move together. When the moving cover 17 abuts against the rotating seat 4, it can continue to move until the electrode cap is inserted into the polishing disc 11. The moving cover 17 can abut against the rotating seat 4 at all times through the elastic connection formed with the tension spring 19, so as to avoid leaving a gap between the sealing cover 15 and the rotating seat 4, and to adapt to electrode caps of different lengths.

[0021] Working principle: When using this electrode cap grinding device, firstly, the sealing cover 15 is threaded onto the connecting rod 14, and then the electrode cap is interference-fitted onto the connecting rod 14. The upper and lower hydraulic rods 13 simultaneously drive the electrode cap to be inserted into the polishing disc 11. Each polishing disc 11 is equipped with two polishing discs. When the controller controls the drive motor 12 to work, the drive motor 12 can drive the drive gear 8 to rotate. The drive gear 8, through meshing with the driven gear 9, drives the polishing disc 11 to rotate, so that two electrode caps can be ground at the same time. When it is necessary to change the grinding shape, the servo motor 5 can be controlled by the controller to work. The servo motor 5 drives the rotating seat 4 to rotate, and the polishing disk 11 with the appropriate shape polishing pad is rotated to the corresponding position for grinding. This saves the time of replacing the polishing pad, saves time and effort, and improves the overall use effect and work efficiency. When the hydraulic rod 13 moves the electrode cap sleeved on the connecting rod 14, the stroke is controlled by the hydraulic rod 13, which is existing technology, so its detailed working principle will not be elaborated in this application. It can move the sealing cover 15 together. When the moving cover 17 abuts against the rotating seat 4, it can continue to move until the electrode cap is inserted into the polishing disc 11. The moving cover 17 can abut against the rotating seat 4 at all times through the elastic connection formed with the tension spring 19, so as to avoid leaving a gap between the sealing cover 15 and the rotating seat 4. It is also suitable for electrode caps of different lengths and sizes, with wide applicability and flexible use. Afterwards, the exhaust fan at the outer end of the suction pipe 18 works to extract the debris in the sealing cover 15 through the suction pipe 18, so as to avoid the debris flying everywhere and improve safety.

[0022] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for electrode caps, comprising a base (1), characterized in that: An inverted L-shaped seat (2) is fixedly connected to the top of the base (1). A fixed seat (3) is fixedly connected to the side wall of the L-shaped seat (2). A rotating seat (4) is rotatably connected inside the fixed seat (3). A servo motor (5) is embedded inside the base (1). A drive shaft (6) is fixedly connected to the output end of the servo motor (5). The drive shaft (6) extends to the outside of the base (1) and forms a rotatable connection with the base (1). The drive shaft (6) is fixedly connected to the middle of the bottom end of the rotating seat (4). Four opening slots (10) are opened through the top of the rotating seat (4). A polishing disc (11) is provided inside each of the four opening slots (10). The interior of the rotating seat (4) is open through... The polishing disc (11) is rotated by the transmission mechanism. The polishing disc (11) has two polishing pads inside. The polishing pads inside the polishing disc (11) are respectively pointed, flat, round and spherical. The inner top wall of the L-shaped seat (2) and the top wall of the base (1) are fixedly connected to hydraulic rods (13). The two hydraulic rods (13) are arranged opposite to each other. The other end of the hydraulic rod (13) is fixedly connected to a connecting rod (14). The connecting rod (14) is engaged with the electrode cap by interference fit. The outer end of the connecting rod (14) is threaded. The outside of the connecting rod (14) is provided with a sealing dust suction mechanism. The sealing dust suction mechanism adsorbs the debris generated when the electrode cap is polished.

2. The electrode cap grinding device according to claim 1, characterized in that: The transmission mechanism includes a groove (7), a drive gear (8), a driven gear (9), and a drive motor (12). The rotating seat (4) has a groove (7) inside, which is connected to four open slots (10). The drive gear (8) is rotatably connected in the middle of the groove (7). The outer end of the drive gear (8) is meshed with four driven gears (9). The driven gears (9) correspond one-to-one with the polishing disc (11). The drive motor (12) is mounted on the top center of the rotating seat (4). The output end of the drive motor (12) extends into the rotating seat (4) and is fixedly connected to the middle of the drive gear (8).

3. The electrode cap grinding device according to claim 2, characterized in that: The four driven gears (9) are fixedly connected to the outer ends of the four polishing discs (11) in a one-to-one correspondence, and the centers of the cross sections of the driven gears (9) and the polishing discs (11) coincide.

4. The electrode cap grinding device according to claim 1, characterized in that: The sealing dust collection mechanism includes a sealing cover (15), a slide groove (16), a movable cover (17), a suction pipe (18), and a tension spring (19). The outer end of the connecting rod (14) is threadedly connected to the sealing cover (15). The outer end of the sealing cover (15) is provided with a slide groove (16). The inner wall of the slide groove (16) is fixedly connected to the tension spring (19). The movable cover (17) is sleeved on the outside of the sealing cover (15). The other end of the tension spring (19) is fixedly connected to the end of the movable cover (17). The outer end of the sealing cover (15) is connected to the suction pipe (18). The other end of the suction pipe (18) is connected to an exhaust fan.

5. The electrode cap grinding device according to claim 4, characterized in that: The cross-section of the slide groove (16) is annular, and the movable cover (17) and the slide groove (16) are slidably connected.

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