A welding device for producing a five-star seat leg

Abstract

This invention discloses a welding device for the production of five-star seats, applied in the field of five-star seat welding technology. It includes a workbench, a welding robot, a positioning mechanism, a cleaning mechanism, a detection mechanism, and a five-star seat. The positioning mechanism, cleaning mechanism, and detection mechanism are all mounted on the workbench. The five-star seat includes a central disc and five supporting legs. The workbench includes a frame and a disc. A rotary table is fixed to the top of the frame, and the disc is fixed to the top of the rotary table. Several arc-shaped grooves are equidistantly arranged along the circumference of the disc, and a limiting hole is provided at the center of the disc. The positioning mechanism includes a central positioning component, several limiting components, a fixing ring, and a slide rail. The limiting component includes a support part and a positioning detection part. The positioning detection part includes a limiting seat, two sets of pressure sensors, two sets of sliders, and two sets of springs. This invention can improve the welding quality and efficiency of five-star seats.

Description

Technical Field

[0001] This invention relates to the field of five-star seat welding technology, specifically a welding device for the production of five-star seat bases. Background Technology

[0002] The five-star base consists of a central disc and five legs, each with a corresponding roller. The rollers enable the seat to slide. It is generally used for supporting and fixing furniture such as swivel chairs. Most existing metal five-star base structures are made of alloy welding.

[0003] In existing technologies, steel support legs are typically formed by welding as a single piece, with connectors welded to the ends for mounting rollers. However, current five-star support legs are all welded manually. Manual welding is not only inefficient but also labor-intensive. Furthermore, since five-star support legs are usually welded in one go, any welding errors, such as misalignment or incorrect angle placement, cannot be corrected and must be scrapped. This is especially true when workers are fatigued, which increases the likelihood of defective products and lowers the pass rate of five-star support leg welding.

[0004] Therefore, it is necessary to provide a welding device for producing five-star bases for chairs to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a welding device for the production of five-star bases for seats, which can improve the positioning effect of the support legs during the welding of five-star bases, thereby improving the welding quality and efficiency of the five-star bases, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a welding device for producing five-star seats, comprising a workbench, a welding robot, a positioning mechanism, a cleaning mechanism, an inspection mechanism, and five-star legs. The welding robot is disposed on one side of the workbench, and the positioning mechanism, cleaning mechanism, and inspection mechanism are all disposed on the workbench. The five-star legs include a central plate and five support legs.

[0007] The worktable includes a frame and a disc. A rotary table is fixed on the top of the frame, and the disc is fixed on the top of the rotary table. Several arc-shaped grooves are equidistantly arranged on the disc along the circumferential direction, and a limit hole is provided at the center of the disc.

[0008] The positioning mechanism includes a central positioning component, several limiting components, a fixing ring, and a slide rail. The fixing ring is fixed to the bottom of the disc, the central positioning component is disposed in the limiting hole, the limiting component is disposed in the arc-shaped slide groove and outside the fixing ring, and the slide rail is fixed to the outer wall of the fixing ring.

[0009] The limiting component includes a support part and a positioning detection part. The positioning detection part is fixed to the top of the support part and includes a limiting seat, two sets of pressure sensors, two sets of sliders and two sets of springs.

[0010] The detection mechanism includes a support frame and a camera.

[0011] According to the above technical solution, the central positioning component includes several positioning blocks and a motor. The several positioning blocks are disposed in the limiting hole. The bottom of the disc is fixedly connected to a fixed platform and a bracket. The bracket is disposed around the fixed platform, and the motor is fixed to the bottom of the bracket.

[0012] The fixed platform is provided with several sliding grooves, and the bottom of the positioning block is located in the sliding groove and is slidably connected to the fixed platform.

[0013] A positioning column is fixedly connected to the center of the fixed platform. A lead screw is connected to the positioning column by a bearing. A bearing seat is fixedly connected in the sliding groove. The lead screw is connected to the bearing seat by a bearing. The positioning block is connected to the lead screw by a transmission. The output end of the motor is connected to several lead screws by a bevel gear transmission.

[0014] According to the above technical solution, the support part is disposed around the fixed ring, and the positioning detection part is disposed inside the arc-shaped groove;

[0015] The support includes a connecting seat, a second motor, a third motor, a rotating platform, and a telescopic rod. The connecting seat is disposed inside the slide rail and is rotatably connected to the slide rail. The second motor is fixed to the top of the connecting seat, and the output end of the second motor passes through the connecting seat and is connected to the gear transmission of the outer wall of the fixed ring.

[0016] According to the above technical solution, the motor three is fixed to the bottom of the connecting seat, the rotating table is disposed on the top of the connecting seat and rotatably connected to the connecting seat, and the output end of the motor three passes through the bottom of the connecting seat and is gear-driven connected to the rotating table.

[0017] The telescopic rod is fixed to the top of the rotating platform.

[0018] According to the above technical solution, the limiting seat is fixed to the top of the telescopic rod. The limiting seat has grooves on both sides. The two sets of pressure sensors, the two sets of sliders, and the two sets of springs are respectively set in the grooves on both sides of the limiting seat. Each set of springs has several springs. One side of the pressure sensor is fixedly connected to the limiting seat, the other side of the pressure sensor is fixedly connected to one end of the spring, the other end of the spring is fixedly connected to the slider, and the slider is slidably connected to the limiting seat.

[0019] According to the above technical solution, flanges are fixedly connected to both sides of the top of the limiting seat, and the flanges are located above the slider.

[0020] According to the above technical solution, the cleaning mechanism includes a second bracket, a fourth motor, and a cover. The second bracket is fixed to the side of the frame, the fourth motor is fixed to the bottom of the second bracket, and a connecting frame is rotatably connected to the top of the fourth motor. The output end of the fourth motor passes through the second bracket and is fixedly connected to the connecting frame.

[0021] According to the above technical solution, the cover is located above the disc, the cover is fixed to the bottom of the connecting frame, the connecting frame and the cover are provided with a number of air pipes, the number of air pipes pass through the connecting frame and the cover and are fixedly connected to the connecting frame and the cover.

[0022] The air pipe located on the connecting frame is connected to an air extraction pipe, and an air extraction fan and a filter are installed on the air extraction pipe;

[0023] Air inlet pipes are connected to the air pipes located on both sides of the connecting frame and on the protective cover, and air inlet fans are installed on the air inlet pipes.

[0024] According to the above technical solution, the bracket three is fixed to the side of the frame, the camera is fixed to the bottom of the bracket three, and the camera is located at the top center of the disc.

[0025] According to the above technical solution, the camera and the pressure sensor are electrically connected to a data analysis module. The data analysis module is used to acquire the data detected by the pressure sensor and the image of the five-star base welded by the camera, and then judge the quality of the five-star base weld based on the acquired data.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a positioning mechanism, can accurately clamp and release the central plate, and can also adjust the circumferential position, angle and height of the limiting component to position the support leg. Furthermore, by setting a camera and pressure sensor, the force on the support leg can be monitored in real time during positioning, which facilitates the detection of welding strength and dynamic balance after welding. This realizes the integration of dynamic positioning and detection of the support leg, which is beneficial to improving the positioning effect of the support leg during the welding of the five-star support, thereby improving the welding quality and efficiency of the five-star support. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a partial structural side view of the present invention;

[0030] Figure 3 This is a schematic diagram of the disk and positioning mechanism structure of the present invention;

[0031] Figure 4 This is a cross-sectional view of the center of the disc and positioning mechanism of the present invention;

[0032] Figure 5 This is the invention Figure 4 Enlarged structural diagram of region A in the middle;

[0033] Figure 6 This is a schematic diagram of the positioning mechanism of the present invention;

[0034] Figure 7 This is a schematic cross-sectional view of the disk and positioning mechanism of the present invention.

[0035] Figure 8 This is the invention Figure 7 Enlarged structural diagram of region B in the middle;

[0036] Figure 9 This is the invention Figure 7 Frontal view of the section;

[0037] Figure 10 This is the invention Figure 9 Enlarged structural diagram of region C in the middle;

[0038] In the diagram: 1. Workbench; 11. Frame; 12. Rotary table; 13. Disc; 14. Arc-shaped slide; 15. Limiting hole; 2. Welding robot;

[0039] 3. Positioning mechanism; 31. Center positioning component; 311. Positioning block; 312. Fixed platform; 313. Slide groove; 314. Positioning column; 315. Lead screw; 316. Bracket 1; 317. Motor 1; 318. Bearing seat; 32. Limiting component; 321. Connecting seat; 322. Motor 2; 323. Motor 3; 324. Rotating platform; 325. Telescopic rod; 326. Limiting seat; 327. Groove; 328. Pressure sensor; 329. Slider; 3210. Spring; 3211. Flange; 33. Fixing ring; 34. Slide rail;

[0040] 4. Cleaning mechanism; 41. Support bracket two; 42. Motor four; 43. Connecting frame; 44. Protective cover; 45. Air pipe;

[0041] 5. Testing agency; 51. Bracket 3; 52. Camera. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-10 The present invention provides a technical solution: a welding device for producing a five-star base for a seat, comprising a workbench 1, a welding robot 2, a positioning mechanism 3, a cleaning mechanism 4, an inspection mechanism 5, and a five-star base. The welding robot 2 is disposed on one side of the workbench 1. The positioning mechanism 3, the cleaning mechanism 4, and the inspection mechanism 5 are all disposed on the workbench 1. The five-star base includes a central plate and five supporting legs. The welding robot 2 is used to weld the five supporting legs onto the central plate to form the five-star base. The positioning mechanism 3 is used to position the central plate and the five supporting legs. The cleaning mechanism 4 is used to cool the welded supporting legs and absorb welding impurities. The inspection mechanism 5 is used to inspect the five-star base formed by welding.

[0044] Specifically, such as Figures 2-5 As shown, the worktable 1 includes a frame 11 and a disc 13. A rotary table 12 is fixed on the top of the frame 11, and the disc 13 is fixed on the top of the rotary table 12. Several arc-shaped grooves 14 are equidistantly arranged on the disc 13 along the circumferential direction. A limit hole 15 is provided in the center of the disc 13. The rotary table 12 is used to drive the disc 13 to rotate.

[0045] It should be noted that the rotary table 12 is a rotary table driven by a motor.

[0046] Specifically, such as Figures 2-6 As shown, the positioning mechanism 3 includes a central positioning component 31, several limiting components 32, a fixing ring 33, and a slide rail 34. The fixing ring 33 is fixed to the bottom of the disc 13. The central positioning component 31 is set in the limiting hole 15. The limiting components 32 are set in the arc-shaped slide groove 14 and around the fixing ring 33. The slide rail 34 is fixed to the outer wall of the fixing ring 33. The central positioning component 31 is used to position the central disc of the five-star foot, and the limiting components 32 are used to position the support feet of the five-star foot. After the rotating table 12 drives the disc 13 to rotate, it can drive the central positioning component 31 and the limiting components 32 to rotate synchronously, thereby adjusting the welding angle and position of the five-star foot support feet.

[0047] It should be noted that the number of limiting components 32 and the number of arc-shaped slides 14 are the same, and specifically, the number of arc-shaped slides 14 is the same as the number of welded support legs. Figure 3 In the middle, the arc-shaped slide 14 and the limiting component 32 are each provided with five sets, which are used to correspond to the number of five sets of support legs of the five-star foot.

[0048] Furthermore, such as Figures 3-6 As shown, the center positioning component 31 includes several positioning blocks 311 and a motor 317. Several positioning blocks 311 are disposed in the limiting hole 15. The bottom of the disc 13 is fixedly connected to a fixed platform 312 and a bracket 316. The bracket 316 is disposed around the fixed platform 312, and the motor 317 is fixed to the bottom of the bracket 316.

[0049] The fixed platform 312 is provided with several sliding grooves 313, and the bottom of the positioning block 311 is located in the sliding groove 313 and is slidably connected to the fixed platform 312.

[0050] A positioning column 314 is fixedly connected to the center of the fixed platform 312. A lead screw 315 is connected to the positioning column 314 by a bearing. A bearing seat 318 is fixedly connected in the slide groove 313. The lead screw 315 is connected to the bearing seat 318 by a bearing. The positioning block 311 is connected to the lead screw 315 by a transmission. The output end of the motor 317 is connected to several lead screws 315 by a bevel gear transmission. When the motor 317 starts to rotate forward, it drives several lead screws 315 to rotate in reverse synchronously through the bevel gear transmission. This causes the positioning block 311 to move closer to the positioning column 314, so that the center plate can be fitted onto several positioning blocks 311, or the several positioning blocks 311 can release the restriction on the center of the center plate. Conversely, when the motor 317 starts to rotate in reverse, it drives the positioning block 311 to move away from the positioning column 314, so that the several positioning blocks 311 limit the center of the center plate, thus achieving the effect of center plate positioning.

[0051] It should be noted that the number of slides 313 is the same as the number of positioning blocks 311. Figure 6 Each set has three groups.

[0052] Furthermore, such as Figures 7-10 As shown, the limiting component 32 includes a support part and a positioning detection part. The positioning detection part is fixed to the top of the support part, the support part is located around the fixing ring 33, and the positioning detection part is located in the arc-shaped slide groove 14. The support part is used to adjust the height, angle and position of the positioning detection part, and the positioning detection part is used to position the support leg to be welded and assist in detecting the welding quality.

[0053] Furthermore, such as Figures 7-10As shown, the support includes a connecting seat 321, a second motor 322, a third motor 323, a rotating table 324, and a telescopic rod 325. The connecting seat 321 is disposed in the slide rail 34 and rotatably connected to the slide rail 34. The second motor 322 is fixed to the top of the connecting seat 321. The output end of the second motor 322 passes through the connecting seat 321 and is gear-driven connected to the outer wall of the fixed ring 33. When the second motor 322 starts to rotate clockwise, it can drive the positioning detection part to rotate clockwise along the circumference of the fixed ring 33 through the gear transmission connection with the fixed ring 33. Conversely, when the second motor 322 starts to rotate counterclockwise, it can drive the positioning detection part to rotate counterclockwise along the circumference of the fixed ring 33, thereby adjusting the position of the positioning detection part in the arc-shaped slide groove 14.

[0054] Motor 323 is fixed to the bottom of connecting seat 321, and rotating table 324 is set on the top of connecting seat 321 and rotatably connected to connecting seat 321. The output end of motor 323 passes through the bottom of connecting seat 321 and is connected to rotating table 324 by gear transmission. When motor 323 starts to rotate clockwise, it drives rotating table 324 to rotate counterclockwise through gear transmission, thereby driving the positioning detection unit to rotate counterclockwise along the circumference of fixed ring 33. Conversely, when motor 323 starts to rotate counterclockwise, it drives positioning detection unit to rotate clockwise along the circumference of fixed ring 33, thereby adjusting the angle of positioning detection unit so that slider 329 is perpendicular or parallel to the radial direction of disk 13.

[0055] The telescopic rod 325 is fixed to the top of the rotating table 324. When the telescopic rod 325 extends, it can raise the positioning detection unit. When the telescopic rod 325 retracts, it can lower the positioning detection unit, thereby adjusting the height of the positioning detection unit.

[0056] It should be noted that the 325 telescopic rod can be electrically telescopic or pneumatically telescopic.

[0057] Furthermore, such as Figure 8 and Figure 10As shown, the positioning detection unit includes a limiting seat 326, two sets of pressure sensors 328, two sets of sliders 329, and two sets of springs 3210. The limiting seat 326 is fixed to the top of the telescopic rod 325. The limiting seat 326 has grooves 327 on both sides. The two sets of pressure sensors 328, the two sets of sliders 329, and the two sets of springs 3210 are respectively set in the grooves 327 on both sides of the limiting seat 326. Each set of springs 3210 has several. One side of the pressure sensor 328 is fixedly connected to the limiting seat 326, and the other side of the pressure sensor 328 is fixedly connected to one end of the spring 3210. The other end of the spring 3210 is fixedly connected to the slider 329. The slider 329 is slidably connected to the limiting seat 326. When the slider 329 is subjected to a force toward the pressure sensor 328, the spring 3210 is compressed. The force on the slider 329 is transmitted to the pressure sensor 328 through the spring 3210, so that the pressure sensor 328 can detect the force on the slider 329.

[0058] Flanges 3211 are fixedly connected to both sides of the top of the limit seat 326. The flanges 3211 are located above the slider 329. The flanges 3211 are used to prevent impurities from entering the sliding connection between the slider 329 and the top of the limit seat 326, which would affect the normal detection of whether the slider 329 is under force by the pressure sensor 328.

[0059] It should be noted that when the spring 3210 is in the extended state and the slider 329 is perpendicular to the radial direction of the disk 13, the control telescopic rod 325 retracts, which allows the positioning detection part to pass through the arc-shaped slide groove 14. Then, after the motor 323 adjusts the angle of the positioning detection part and the telescopic rod 325 adjusts the lifting height of the positioning detection part, the positioning detection part can be positioned below or above the arc-shaped slide groove 14.

[0060] Specifically, such as Figure 2 As shown, the cleaning mechanism 4 includes a second bracket 41, a fourth motor 42, and a cover 44. The second bracket 41 is fixed to the side of the frame 11, and the fourth motor 42 is fixed to the bottom of the second bracket 41. A connecting frame 43 is rotatably connected to the top of the fourth motor 42. The output end of the fourth motor 42 passes through the second bracket 41 and is fixedly connected to the connecting frame 43. The connecting frame 43 is Z-shaped, and the cover 44 is fan-shaped. When the fourth motor 42 starts to rotate, it drives the connecting frame 43 to rotate, adjusting the position of the cover 44, thereby making the cover 44 located above the disc 13 or removed from the disc 13, achieving the effect of adjusting the position of the cover 44 and thus adjusting the cleaning area.

[0061] The cover 44 is located above the disc 13 and is fixed to the bottom of the connecting frame 43. The connecting frame 43 and the cover 44 are provided with a number of air pipes 45, which pass through the connecting frame 43 and the cover 44 and are fixedly connected to the connecting frame 43 and the cover 44.

[0062] The air pipe 45 located on the connecting frame 43 is connected to the air extraction pipe. The air extraction pipe is equipped with an air extraction fan and a filter. When the air extraction fan and filter are activated, they can adsorb the air containing dust between the disc 13 and the cover 44 and filter the dust.

[0063] Air pipes 45 located on both sides of the connecting frame 43 and on the cover 44 are connected to air inlet pipes. Air inlet fans are installed on the air inlet pipes. When the air inlet fans are started, air can be introduced between the disc 13 and the cover 44 to blow up the deposited dust, which can then be sucked up by the exhaust fan and filtered by the filter.

[0064] Specifically, such as Figure 2 As shown, the testing mechanism 5 includes a support 3 51 and a camera 52. The support 3 51 is fixed to the side of the frame 11, and the camera 52 is fixed to the bottom of the support 3 51. The camera 52 is located at the top center of the disc 13 and is used to capture images of the five-star feet after welding.

[0065] The camera 52 and the pressure sensor 328 are electrically connected to a data analysis module. The data analysis module is used to acquire the data detected by the pressure sensor 328 and the image of the five-star pin after welding captured by the camera 52, and then judge the quality of the five-star pin welding based on the acquired data.

[0066] Working principle of the welding device used in the production of five-star seats:

[0067] The operator controls motor 317 to start rotating forward, which drives several lead screws 315 to rotate in reverse synchronously, causing the positioning block 311 to move closer to the positioning post 314, placing the center plate of the five-star base around the positioning blocks 311. Then, the operator controls motor 317 to start rotating in reverse, causing the positioning blocks 311 to limit the center of the center plate and position the center plate.

[0068] Support positioning and welding: Control the extension of the telescopic rods 325 on the support parts of the two adjacent sets of limit components 32, and the extension rods 325 on the support parts of the remaining sets of limit components 32 retract, so that the corresponding positioning detection part is located below the arc-shaped slide groove 14;

[0069] Motor 322 on the support of the two adjacent sets of limiting components 32, which control the extension of the telescopic rod 325, starts to rotate, so that the two sets of positioning detection parts are located close to each other in the two adjacent sets of arc-shaped slides 14. One set of positioning detection components is located at the end of the arc-shaped slide 14, and the other set of positioning detection components maintains a certain distance from it. The specific distance is set according to the width of the five-star foot support. Then, motor 322 corresponding to the positioning detection part that maintains a certain distance from the positioning detection part at the end of the arc-shaped slide 14 is started to rotate, driving the positioning detection part to move closer to the positioning detection part at the end of the arc-shaped slide 14, fixing the position of the five-star foot support. Then, the rotary table 12 is controlled to rotate at a set angle. The specific set angle is set manually, so that the position of the five-star foot corresponds to the position of the welding robot 2. The welding robot 2 welds the feet fixed by the two sets of positioning detection parts to the outer wall of the central plate.

[0070] It should be noted that since the five legs of the five-star base are usually equidistantly arranged around the periphery of the central plate along the circumference of the central plate, the angle of a single rotation of the rotating platform 12 driving the disc 13 to rotate is 72°.

[0071] Repeat the positioning and welding of the support legs, position and fix the remaining five-star support legs, and weld the bracket to the center plate to form a complete five-star support.

[0072] After the center positioning component 31 positions the center plate, the control motor 42 is started, driving the connecting frame 43 to rotate, so that the cover 44 is positioned above the disc 13, forming a relatively enclosed dust handling space. During welding, the exhaust fan, filter and intake fan are started to introduce air between the disc 13 and the cover 44, blowing up the deposited dust. The exhaust fan draws in the air containing dust, and the filter filters it.

[0073] Welding Quality Inspection – Single Support Leg: Maintain the positioning of the central positioning component 31 on the five-star base center plate, and ensure that the two adjacent sets of limiting components 32 of the corresponding support leg to be inspected are in the support leg positioning and welding state. Then, control the motors 322 of the two adjacent sets of limiting components 32 to start synchronously, driving the limiting components 32 to rotate towards the positioning detection part located at the end of the arc-shaped slide 14. The data analysis module acquires the image captured by the camera 52 and the detection data of the pressure sensors 328 on the two sets of limiting components 32. If the position of the support leg does not change in the image captured by the data analysis module, the positioning of the central positioning component 31 on the center plate is good, and the subsequent pressure judgment continues; if the position of the support leg changes in the image captured by the camera 52, the positioning effect of the central positioning component 31 on the center plate is poor, and the data analysis module issues an alarm.

[0074] Pressure Judgment: When the motor 322 controlling the two adjacent sets of limit components 32 starts synchronously, the data analysis module obtains the first maximum difference of the pressure values ​​detected by the pressure sensors 328 of the limit components 32 on both sides of the support leg. The data analysis module has a corresponding first threshold. When the first maximum difference does not exceed the first threshold, the support leg is not fully welded, and the support leg will rotate synchronously with the rotation of the limit component 32, resulting in deformation. If the first maximum difference exceeds the first threshold, the support leg is fully welded, and the support leg will not rotate around the central disk with the rotating limit component 32.

[0075] Welding Quality Inspection - All Support Legs: Control motor 317 starts rotating forward, driving several lead screws 315 to rotate synchronously in reverse, causing positioning block 311 to move closer to positioning post 314. This releases positioning block 311 from the inner wall of the center plate of the five-star support leg. The data analysis module acquires the image of the five-star support leg captured by camera 52 and obtains the included angles between the center of the center plate of the five-star support leg and each pair of the five support legs. If all five included angles are the same, the welding condition is judged to be normal, and subsequent supplementary inspections are continued. If they are not equal, the welding condition is judged to be abnormal, and an alarm is triggered.

[0076] Supplementary Test 1: Since the data analysis module obtains the image of the five-star foot captured by camera 52, the positioning block 311 releases the restriction on the center plate of the five-star foot after welding, at which point the center of the five-star foot center plate is fixed. Simultaneously, the motors 323 of several sets of limiting components 32 are started, adjusting the angle of the positioning detection unit so that the side wall of the slider 329 is perpendicular to the radial direction of the disk 13, and the telescopic rod 325 retracts, so that the positioning detection unit is located below the arc-shaped slide groove 14, releasing the restriction of the positioning detection unit on the support foot. Then, the rotary table 12 is started; the rotation speed, number of rotations, or rotation time of the rotary table 12 are all manually set. Due to the gravity of the five-star foot and the friction between it and the disk 13, the rotary table 12 is started again. When the rotating disc 13 rotates, it will cause the five-star feet to rotate synchronously. If there is slag, missing welds, or damage to the five-star feet, it will cause changes in the weight of the corresponding feet. This will result in different centrifugal forces on each foot when the five-star feet rotate, causing the five-star feet to shift in position under the action of centrifugal force, which in turn will cause the center of the five-star feet's central disc to change. After the rotating table 12 rotates a certain number of times or for a certain period of time, the data analysis module will obtain the image of the five-star feet captured by the camera 52 and obtain the center position of the five-star feet's central disc. If the center position of the central disc is consistent with the initial position, the welding quality of the five-star feet is good. If the center position of the central disc is inconsistent with the initial position, the welding quality of the five-star feet is poor, and an alarm will be triggered.

[0077] Supplementary Test 2: Simultaneously control the motors 322 of several sets of limit components 32 to start, adjust the position of the positioning detection unit, and the data analysis module obtains the position of the positioning detection unit on several sets of limit components 32, so that the sliders 329 on the same side of several sets of limit components 32 are in contact with the five-star foot support. At this time, keep the pressure value detected by the corresponding pressure sensor 328 within a certain range, the specific pressure range is set manually; then control the rotary table 12 to start, drive the disc 13 to rotate, the rotation direction is towards the direction of the support foot contacting the slider 329, the rotation speed, number of rotations or rotation time of the rotary table 12 are all set manually; the rotation of the disc 13 will drive the five-star foot to rotate synchronously. If there is slag, missing weld or damage to the five-star foot support, it will cause the weight on the corresponding support foot to change, resulting in different centrifugal forces on each support foot when the five-star foot rotates, causing the five-star foot to shift position under the action of centrifugal force, thus affecting the contact slider 329. The different forces acting on the rotating platform 12 result in different pressure values ​​obtained by the pressure sensors 328 corresponding to each slider 329, leading to an increased pressure difference. The data analysis module acquires the second maximum difference in pressure values ​​obtained by several groups of pressure sensors 328 at the same time within the time range after the rotating platform 12 starts, and the third maximum difference in pressure values ​​obtained by the same pressure sensor 328 within the same time range. The data analysis module has a second threshold corresponding to the second maximum difference and a third threshold corresponding to the third maximum difference. When the second maximum difference does not exceed the second threshold and the third maximum difference does not exceed the third threshold, the weld quality is judged to be good. If the second maximum difference exceeds the second threshold, the weld quality is poor, caused by welding or the support itself, and the data analysis module issues an alarm. If the third maximum difference exceeds the third threshold, the surface of the disc 13 is abnormal, causing foreign objects to obstruct the rotation of the five-star foot, resulting in an increase in the third maximum difference, and the data analysis module issues an alarm.

[0078] The above methods can improve the automatic positioning, fixing and detection of the five-star bracket, thereby improving the welding quality and efficiency of the five-star bracket.

[0079] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0080] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for producing five-star seats, comprising a workbench (1), a welding robot (2), a positioning mechanism (3), a cleaning mechanism (4), an inspection mechanism (5), and five-star seats, characterized in that, The welding robot (2) is set on one side of the workbench (1). The positioning mechanism (3), cleaning mechanism (4), and detection mechanism (5) are all set on the workbench (1). The five-star foot includes a central plate and five support legs. The workbench (1) includes a frame (11) and a disc (13). A rotating table (12) is fixed on the top of the frame (11), and the disc (13) is fixed on the top of the rotating table (12). Several arc-shaped grooves (14) are equidistantly arranged on the disc (13) along the circumferential direction, and a limit hole (15) is provided at the center of the disc (13). The positioning mechanism (3) includes a central positioning component (31), several limiting components (32), a fixing ring (33) and a slide rail (34). The fixing ring (33) is fixed to the bottom of the disc (13). The central positioning component (31) is located in the limiting hole (15). The limiting components (32) are located in the arc-shaped slide groove (14) and around the fixing ring (33). The slide rail (34) is fixed to the outer wall of the fixing ring (33). The limiting component (32) includes a support part and a positioning detection part. The positioning detection part is fixed to the top of the support part. The positioning detection part includes a limiting seat (326), two sets of pressure sensors (328), two sets of sliders (329) and two sets of springs (3210). The detection mechanism (5) includes a support bracket (51) and a camera (52); The support part is disposed around the fixed ring (33), and the positioning detection part is disposed inside the arc-shaped groove (14); The support includes a connecting seat (321), a second motor (322), a third motor (323), a rotating platform (324), and a telescopic rod (325). The connecting seat (321) is disposed inside the slide rail (34) and is rotatably connected to the slide rail (34). The second motor (322) is fixed to the top of the connecting seat (321). The output end of the second motor (322) passes through the connecting seat (321) and is connected to the gear transmission of the outer wall of the fixing ring (33). The motor three (323) is fixed to the bottom of the connecting seat (321), the rotating platform (324) is set on the top of the connecting seat (321) and rotatably connected to the connecting seat (321), and the output end of the motor three (323) passes through the bottom of the connecting seat (321) and is gear-driven connected to the rotating platform (324); The telescopic rod (325) is fixed to the top of the rotating platform (324); The limiting seat (326) is fixed to the top of the telescopic rod (325). The limiting seat (326) has grooves (327) on both sides. Two sets of pressure sensors (328), two sets of sliders (329), and two sets of springs (3210) are respectively set in the grooves (327) on both sides of the limiting seat (326). Each set of springs (3210) has several units. One side of the pressure sensor (328) is fixedly connected to the limiting seat (326), and the other side of the pressure sensor (328) is fixedly connected to one end of the spring (3210). The other end of the spring (3210) is fixedly connected to the slider (329). The slider (329) is slidably connected to the limiting seat (326).

2. The welding device for producing a five-star seat base according to claim 1, characterized in that, The central positioning component (31) includes several positioning blocks (311) and a motor (317). The positioning blocks (311) are disposed in the limiting hole (15). The bottom of the disc (13) is fixedly connected to a fixed platform (312) and a bracket (316). The bracket (316) is disposed around the fixed platform (312), and the motor (317) is fixed to the bottom of the bracket (316). The fixed platform (312) is provided with a plurality of sliding grooves (313), and the bottom of the positioning block (311) is located in the sliding groove (313) and is slidably connected to the fixed platform (312); The fixed platform (312) is fixedly connected to the center of the positioning column (314), and the positioning column (314) is connected to the bearing of the lead screw (315). The slide groove (313) is fixedly connected to the bearing seat (318), the lead screw (315) is connected to the bearing seat (318) by bearing, the positioning block (311) is connected to the lead screw (315) by transmission, and the output end of the motor (317) is connected to several lead screws (315) by bevel gear transmission.

3. The welding device for producing a five-star seat base according to claim 1, characterized in that, The limiting seat (326) has flanges (3211) fixedly connected to both sides of its top, and the flanges (3211) are located above the slider (329).

4. The welding device for producing a five-star seat base according to claim 3, characterized in that, The cleaning mechanism (4) includes a second bracket (41), a fourth motor (42) and a cover (44). The second bracket (41) is fixed to the side of the frame (11), the fourth motor (42) is fixed to the bottom of the second bracket (41), and a connecting frame (43) is rotatably connected to the top of the fourth motor (42). The output end of the fourth motor (42) passes through the second bracket (41) and is fixedly connected to the connecting frame (43).

5. The welding device for producing a five-star seat base according to claim 4, characterized in that, The cover (44) is located above the disc (13). The cover (44) is fixed to the bottom of the connecting frame (43). The connecting frame (43) and the cover (44) are provided with a plurality of air pipes (45). The plurality of air pipes (45) pass through the connecting frame (43) and the cover (44) and are fixedly connected to the connecting frame (43) and the cover (44). The air pipe (45) located on the connecting frame (43) is connected to the air extraction pipe, and the air extraction pipe is equipped with an air extraction fan and a filter; Air pipes (45) located on both sides of the connecting frame (43) and on the cover (44) are connected to air inlet pipes, and air inlet fans are installed on the air inlet pipes.

6. The welding device for producing a five-star seat base according to claim 5, characterized in that, The bracket three (51) is fixed to the side of the frame (11), the camera (52) is fixed to the bottom of the bracket three (51), and the camera (52) is located at the top center of the disc (13).

7. The welding device for producing a five-star seat base according to claim 6, characterized in that, The camera (52) and the pressure sensor (328) are electrically connected to a data analysis module. The data analysis module is used to acquire the data detected by the pressure sensor (328) and the image of the five-star foot after welding captured by the camera (52), and then judge the quality of the five-star foot welding based on the acquired data.

Images