A welding positioning tool for new energy vehicle lamp production

Abstract

The application discloses a welding positioning tool for new energy automobile lamp production, which comprises a support table and a clamping rotating mechanism, a bottom support is fixedly installed at the bottom of the support table, two groups of supporting bearings are sleeved at the inner side of the support table, a cylindrical seat is movably installed at the inner side of the two groups of supporting bearings, and a discharge pipe is communicated with the bottom end of one side of the support table; the positioning limiting columns and the supporting sleeves are closely arranged in the cylindrical seat, the dense arrangement can provide certain limiting effect under various shapes, the power of the electromagnet is slowly increased by the controller when the electromagnet is powered on, the permanent magnet can be slowly lifted, the visual acquisition camera collects the shape and position of the workpiece during operation, the electromagnet at the specific position is controlled and started, the lifted positioning limiting column can be limited around the position of the workpiece that needs to be positioned, and the flexibility and the ability to cope with various workpieces are improved.

Description

Technical Field

[0001] This invention relates to the field of welding and positioning technology for new energy vehicle headlight components, specifically a welding and positioning tooling for the production of new energy vehicle headlights. Background Technology

[0002] New energy vehicle headlights are key components that integrate lighting, signaling, and intelligent interaction. They not only achieve basic functions such as high / low beams, turn signals, and brake lights through light sources such as LEDs and lasers, but also incorporate intelligent features such as dynamic daytime running light effects, adaptive high / low beams, and cornering lights. Some high-end models are even equipped with innovative designs such as projection lights and interactive lights, which not only ensure driving safety, but also highlight the vehicle's technological feel and brand recognition through personalized lighting language. Their design must take into account energy efficiency (to meet the low power consumption requirements of new energy vehicles) and aesthetic styling.

[0003] In the production process of new energy vehicle headlights, due to design and product requirements, it is necessary to produce headlights of various specifications. These headlights are complex in structure (integrating multiple systems such as optics, electronics, and mechanics), require high precision (involving sealing, optical path calibration, etc.), and need to adapt to the low energy consumption and intelligent characteristics of new energy vehicles. New energy vehicles have higher intelligent requirements, demanding stricter levels of automation in assembly (such as precise screw tightening by robots, and optical path calibration by machine vision) and (such as airtightness testing and automated light pattern testing). The production of new energy vehicle headlights requires welding of workpieces in the headlight production process to assist in the production of accessories and workpieces. Welding of new energy vehicle headlights requires positioning and assistance from robotic welding robots. Existing auxiliary positioning fixtures cannot adapt to the diverse designs of new energy vehicle headlights, and can only provide mold-opening positioning assistance for a single or specific headlight. Multiple headlights require multiple positioning fixtures; one piece of equipment cannot adapt to the positioning of multiple new energy vehicle headlight designs within a certain specification, thus increasing costs. Therefore, a welding positioning fixture for the production of new energy vehicle headlights is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a welding positioning fixture for the production of new energy vehicle headlights, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding positioning fixture for the production of new energy vehicle headlights, comprising a support platform and a clamping and rotating mechanism. A bottom bracket is fixedly installed at the bottom of the support platform, two sets of support bearings are sleeved on the inner side of the support platform, and cylindrical seats are movably installed on the inner side of the two sets of support bearings. A discharge pipe is connected to the bottom end of one side of the support platform. An intelligent control console is provided on the front of the support platform, and a support rod is fixedly installed on the back of the support platform. A visual acquisition camera is fixedly installed at the top of the support rod.

[0006] The clamping and rotating mechanism includes a mounting base, on the top of which an electrically controlled synchronous hydraulic telescopic rod is fixedly mounted. A mounting platform is fixedly mounted on the output end of the electrically controlled synchronous hydraulic telescopic rod. A worm gear reducer is fixedly mounted on the top of the mounting platform. A high-precision electrically controlled telescopic rod is driven to the output end of the worm gear reducer. Two positioning bearings are sleeved on the outer side of the high-precision electrically controlled telescopic rod. A driven gear is driven to the input end of the worm gear reducer. A driving gear meshes with the outer side of the driven gear. A synchronous control servo motor is driven to one side of the driving gear. A U-shaped clamping frame is fixedly mounted on the output end of the high-precision electrically controlled telescopic rod.

[0007] The top of the cylindrical seat has two sliding grooves, and a ball screw moving mechanism is movably installed inside the two sliding grooves. A positioning clamping mechanism is fixedly installed on the moving part of the ball screw moving mechanism. A support partition is fixedly installed in the middle part of the cylindrical seat. Several telescopic positioning mechanisms are movably installed inside the cylindrical seat. Several support seats are slidably installed at the bottom of the cylindrical seat. Support balls are rolled inside the support seats. Several discharge holes are opened on the side wall of the cylindrical seat. A drive shaft is drivenly connected to the bottom end of the cylindrical seat.

[0008] The telescopic positioning mechanism includes a support sleeve, a positioning and limiting post is movably sleeved on the inner side of the top of the support sleeve, a permanent magnet is fixedly installed at the bottom of the positioning and limiting post, and an electromagnet is fixedly installed at the bottom of the inner cavity of the support sleeve.

[0009] Preferably, there are two sets of clamping and rotating mechanisms. The mounting base is fixedly installed on the top of the cylindrical base by bolts, and the two sets of clamping and rotating mechanisms are axially symmetrically distributed on the top of the cylindrical base. A reinforcing bracket is fixedly installed on one side of the mounting platform. The end of the reinforcing bracket away from the mounting platform is movably installed on the outside of one end of the high-precision electrically controlled telescopic rod through a bearing. The outer sides of the two positioning bearings are both sleeved inside one end of the mounting platform. The synchronous control servo motor is fixedly installed on the top of the worm gear reducer.

[0010] Preferably, the Z-shaped clamping frame is Z-shaped, and clamping bolts are threadedly connected to the top and bottom of the Z-shaped clamping frame. The number of clamping bolts is at least two sets, and clamping heads are fixedly installed on the opposite ends of the clamping bolts. Clamping rubber seats are fixedly installed on the end of the Z-shaped clamping frame away from the high-precision electrically controlled telescopic rod.

[0011] Preferably, the bottom of the support seat is fixedly installed at the bottom of the inner cavity of the support platform, the support seats are evenly distributed in a circle at the bottom of the cylindrical seat, and several sets of support seats are distributed in multiple layers of circles, and the top of the support ball is in rolling contact with the bottom of the cylindrical seat.

[0012] Preferably, the discharge holes are evenly distributed circumferentially on the side wall of the cylindrical seat, and the discharge holes are located at the top of the support partition. The support bearings located at the bottom of the cylindrical seat are distributed in a segmented structure on the opposite sides of the cylindrical seat and the support platform.

[0013] Preferably, the positioning and limiting post and the support sleeve are densely packed inside the cylindrical seat. The bottom end of the support sleeve is fixedly installed at the bottom of the inner cavity of the cylindrical seat, and the top end of the support sleeve is fixedly sleeved inside the support partition. The top end of the positioning and limiting post movably passes through the support partition and extends movably to the top of the cylindrical seat. The permanent magnet is movably sleeved inside the support sleeve, and the specifications and dimensions of the permanent magnet are compatible with those of the electromagnet.

[0014] Preferably, the outer side of the drive shaft passes through the support and extends to the bottom of the support via a bearing. The drive shaft and the cylindrical base are concentric circles. A reduction gearbox is driven to the bottom end of the drive shaft. A servo motor is driven to the input end of the reduction gearbox. The reduction gearbox is fixedly installed at the bottom of the support via a bracket. The servo motor is fixedly installed on the inner side of the bottom bracket.

[0015] Preferably, the ball screw moving mechanism includes a transmission screw, one end of which is connected to a transmission motor. The transmission motor is fixedly installed at the bottom of the inner side of the slide groove via a bracket. The end of the transmission screw away from the transmission motor is movably sleeved with a bearing bracket, which is fixedly installed at the bottom of the inner side of the slide groove. The outer side of the transmission screw is threadedly connected to a ball moving seat. An H-shaped sliding plate is fixedly installed on the top of the ball moving seat. The H-shaped sliding plate is slidably installed laterally on the opposite side of the slide groove in an H-shape.

[0016] Preferably, the positioning and clamping mechanism includes a box body. The bottom of the box body is fixedly installed on the top of the H-shaped sliding plate. A valve core valve is connected to the back of the box body. Several sealing sleeves are fixedly installed inside the box body. Both ends of the sealing sleeves are fixedly installed on the inner wall of the box body. A clamping and positioning post is movably sleeved inside the sealing sleeve. The clamping and positioning post extends movably to the outside of the box body. A sealing piston is fixedly installed at one end of the clamping and positioning post. The sealing piston is movably sleeved inside the sealing sleeve. A flexible spring is fixedly installed on the side of the sealing piston away from the clamping and positioning post. A rubber partition is fixedly installed on the other end of the flexible spring. A telescopic sleeve is fixedly installed on the side of the rubber partition away from the flexible spring. The other end of the telescopic sleeve is fixedly installed inside the sealing sleeve. Several hollow holes are opened inside one end of the sealing sleeve. The hollow holes are located on the outside of the telescopic sleeve.

[0017] Preferably, the sealing sleeve and clamping positioning post are evenly distributed in a rectangular linear pattern inside the box, and the sealing sleeve and clamping positioning post are densely packed inside the box.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the device is in use, the user places the workpiece that needs to be assisted in welding positioning on the top of the cylindrical seat. Then, after inputting the predetermined shape of the workpiece and capturing the positioning through the vision acquisition camera, the telescopic positioning mechanism located on the outside of the workpiece is activated. At this time, the electromagnet is energized to generate magnetic force, which repulses the magnetic pole of the permanent magnet, causing the permanent magnet and the positioning limit post to rise, thereby creating a limiting effect on the outside of the workpiece. Multiple telescopic positioning mechanisms form a slot-like covering limiting effect on the outside of the workpiece. Then, the ball screw moving mechanism is activated to drive the positioning clamping mechanism to clamp the workpiece at both ends. Together with the telescopic positioning mechanism, the workpiece is perfectly limited and positioned, reducing the offset and facilitating the welding robot to perform welding operations. Furthermore, the transmission shaft causes the cylindrical seat to rotate, thereby driving the workpiece to rotate circumferentially, further assisting the welding robot in welding positioning operations. The whole device can adapt to the welding positioning of new energy vehicle headlights of various designs, reducing the number of positioning molds and positioning equipment, and facilitating intelligent operation.

[0019] 2. In use, for auxiliary positioning welding of lightweight long car lamp housings, the U-shaped clamping frame can be placed on the outside of the car lamp workpiece according to its length. Then, the clamping bolts and clamping heads are used to clamp the outside of the car lamp workpiece. At this time, the high-precision electric telescopic rod and the mounting table are adjusted to the same height by the extension of the electric synchronous hydraulic telescopic rod. The two synchronous control servo motors start to rotate synchronously, causing the U-shaped clamping frame and the clamped workpiece to rotate. The intelligent control console controls the second servo motor and the reduction gearbox to drive the transmission shaft and the cylindrical seat to rotate. This allows the welding position to be adjusted in conjunction with the axial rotation of the car lamp workpiece and the circumferential rotation of the cylindrical seat. This facilitates welding operations with robotic arms and increases the flexibility of positioning.

[0020] 3. The positioning and limiting posts and the support sleeve are closely arranged inside the cylindrical base. The dense arrangement can provide a certain limiting effect under various shapes. When the electromagnet is energized, the power is set by the controller to rise slowly, which can slowly cause the permanent magnet to lift up. During operation, the vision acquisition camera collects the shape and position of the workpiece, and the electromagnet at a specific position is controlled to start. The raised positioning and limiting posts can surround the position where the workpiece needs to be positioned to limit it. Overall, it increases the flexibility and the ability to deal with a variety of workpieces. Attached Figure Description

[0021] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the present invention from a rear-view or upward-view perspective.

[0023] Figure 3 This is a front sectional view of the internal structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of the present invention, viewed from the right side.

[0025] Figure 5 This is a three-dimensional structural diagram of the clamping and rotating mechanism of the present invention.

[0026] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0027] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B.

[0028] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point C.

[0029] Figure 9 For the present invention Figure 3 Enlarged structural diagram at point D.

[0030] Figure 10 For the present invention Figure 4 Enlarged structural diagram at point E in the middle.

[0031] Figure 11 For the present invention Figure 7 Enlarged structural diagram at point F.

[0032] In the diagram: 1. Support; 101. Discharge pipe; 102. Support bearing; 2. Intelligent control console; 3. Base bracket; 4. Clamping and rotating mechanism; 401. Mounting base; 402. Electro-controlled synchronous hydraulic telescopic rod; 403. Mounting platform; 404. Worm gear reducer; 405. Driven gear; 406. Drive gear; 407. Synchronous control servo motor; 408. High-precision electro-controlled telescopic rod; 409. Reinforced bracket; 410. Z-shaped clamping frame; 411. Clamping bolt; 412. Clamping head; 413. Positioning bearing; 414. Clamping rubber seat; 5. Positioning and clamping mechanism; 501. Box body; 502. Valve core; 503. Clamping and positioning column; 504. Sealing piston; 50 5. Flexible spring; 506. Rubber partition; 507. Telescopic sleeve; 508. Hollow hole; 509. Sealing sleeve; 6. Support rod; 601. Visual acquisition camera; 7. Cylindrical seat; 701. Slide groove; 702. Support partition; 703. Support base; 704. Support ball; 705. Discharge hole; 8. Telescopic positioning mechanism; 801. Positioning limit post; 802. Support sleeve; 803. Permanent magnet; 804. Electromagnet; 9. Ball screw moving mechanism; 901. Transmission screw; 902. Transmission motor; 903. H-shaped sliding plate; 904. Bearing bracket; 905. Ball moving seat; 10. Reduction gearbox; 1001. Servo motor II; 1002. Transmission shaft. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-11 The present invention provides a technical solution: a welding positioning fixture for the production of new energy vehicle headlights, including a support platform 1 and a clamping and rotating mechanism 4. A bottom bracket 3 is fixedly installed at the bottom of the support platform 1. Two sets of support bearings 102 are sleeved on the inner side of the support platform 1. A cylindrical seat 7 is movably installed on the inner side of the two sets of support bearings 102. A discharge pipe 101 is connected to the bottom end of one side of the support platform 1. An intelligent control console 2 is provided on the front of the support platform 1. A support rod 6 is fixedly installed on the back of the support platform 1. A visual acquisition camera 601 is fixedly installed at the top of the support rod 6.

[0035] The clamping and rotating mechanism 4 includes a mounting base 401. An electrically controlled synchronous hydraulic telescopic rod 402 is fixedly mounted on the top of the mounting base 401. A mounting platform 403 is fixedly mounted on the output end of the electrically controlled synchronous hydraulic telescopic rod 402. A worm gear reducer 404 is fixedly mounted on the top of the mounting platform 403. A high-precision electrically controlled telescopic rod 408 is driven and connected to the output end of the worm gear reducer 404. Two positioning bearings 413 are sleeved on the outer side of the high-precision electrically controlled telescopic rod 408. A driven gear 405 is driven and connected to the input end of the worm gear reducer 404. A driving gear 406 meshes with the outer side of the driven gear 405. A synchronous control servo motor 407 is driven and connected to one side of the driving gear 406. A Z-shaped clamping frame 410 is fixedly mounted on the output end of the high-precision electrically controlled telescopic rod 408.

[0036] Two sliding grooves 701 are provided at the top of the cylindrical seat 7. A ball screw moving mechanism 9 is movably installed inside the two sliding grooves 701. A positioning clamping mechanism 5 is fixedly installed on the moving part of the ball screw moving mechanism 9. A support partition 702 is fixedly installed in the middle part of the cylindrical seat 7. Several telescopic positioning mechanisms 8 are movably installed inside the cylindrical seat 7. Several support seats 703 are slidably installed at the bottom of the cylindrical seat 7. Support balls 704 are rolled inside the support seats 703. Several discharge holes 705 are provided on the side wall of the cylindrical seat 7. A drive shaft 1002 is connected to the bottom end of the cylindrical seat 7.

[0037] The telescopic positioning mechanism 8 includes a support sleeve 802, a positioning limit post 801 is movably sleeved on the inner side of the top end of the support sleeve 802, a permanent magnet 803 is fixedly installed at the bottom end of the positioning limit post 801, and an electromagnet 804 is fixedly installed at the bottom of the inner cavity of the support sleeve 802.

[0038] The working principle of the above technical solution is as follows: During use, the user places the workpiece requiring assisted welding positioning on the top of the cylindrical base 7. Then, after inputting the predetermined shape of the workpiece and capturing the positioning data through the vision acquisition camera 601, the telescopic positioning mechanism 8 located on the outside of the workpiece is activated. At this time, the electromagnet 804 is energized to generate magnetic force, which repels the magnetic poles of the permanent magnet 803, causing the permanent magnet 803 and the positioning limit post 801 to rise, thereby creating a limiting effect on the outside of the workpiece. Multiple telescopic positioning mechanisms 8 form a slot-like covering limiting effect on the outside of the workpiece. Then, the ball screw moving mechanism 9 is activated to drive the positioning clamping mechanism 5 to clamp the workpiece at both ends. Together with the telescopic positioning mechanism 8, the workpiece is perfectly limited and positioned, reducing offset and facilitating welding operations for the welding robot arm. Furthermore, the transmission shaft 1002 causes the cylindrical base 7 to rotate, thereby driving the workpiece to rotate circumferentially, further assisting the welding robot in welding positioning operations. The overall solution can adapt to welding positioning of various new energy vehicle headlight designs, reducing the number of positioning molds and positioning equipment, and facilitating intelligent operation.

[0039] In another implementation scheme, such as Figures 1-5 As shown, there are two sets of clamping and rotating mechanisms 4. The mounting base 401 is fixedly installed on the top of the cylindrical base 7 by bolts, and the two sets of clamping and rotating mechanisms 4 are axially symmetrically distributed on the top of the cylindrical base 7. A reinforcing bracket 409 is fixedly installed on one side of the mounting platform 403. The end of the reinforcing bracket 409 away from the mounting platform 403 is movably installed on the outside of one end of the high-precision electrically controlled telescopic rod 408 through a bearing. The outer sides of the two positioning bearings 413 are sleeved inside one end of the mounting platform 403. The synchronous control servo motor 407 is fixedly installed on the top of the worm gear reducer 404. The Z-shaped clamping frame 410 is Z-shaped. The top and bottom ends of the Z-shaped clamping frame 410 are threaded with clamping bolts 411. There are at least two sets of clamping bolts 411. A clamping head 412 is fixedly installed on the opposite end of the clamping bolts 411. A clamping rubber seat 414 is fixedly installed on the end of the Z-shaped clamping frame 410 away from the high-precision electrically controlled telescopic rod 408.

[0040] In use, when performing auxiliary positioning welding on lightweight, long automotive lamp housings, the relative position of the output end of the high-precision electrically controlled telescopic rod 408 can be adjusted according to the length of the lamp workpiece. The U-shaped clamping frame 410 is placed outside the lamp workpiece, and then clamped to the outside of the workpiece by clamping bolts 411 and clamping heads 412. At this time, the high-precision electrically controlled telescopic rod 408 and the mounting platform 403 are adjusted to the same height by the extension of the electrically controlled synchronous hydraulic telescopic rod 402. Then, the intelligent control console 2 issues commands according to the welding control system, and the two synchronously controlled servo motors 407 start rotating synchronously, through the drive gear 406 and the driven gear 40... 5 drives the worm gear reducer 404 to rotate, and through the transmission of the worm gear reducer 404, the high-precision electronically controlled telescopic rod 408 rotates, which in turn causes the U-shaped clamping frame 410 and the clamped workpiece to rotate. At this time, the welding control system sends a command to the intelligent control console 2, and controls the servo motor 1001 and the reduction gearbox 10 to drive the transmission shaft 1002 and the cylindrical seat 7 to rotate. This allows the welding position to be adjusted in conjunction with the axial rotation of the vehicle lamp workpiece and the circumferential rotation of the cylindrical seat 7, which facilitates welding operations with the robotic arm welding robot, makes it easy to adjust the welding position, increases the flexibility of positioning, and enables various positioning solutions for different designs of new energy vehicle lamp components.

[0041] In another implementation scheme, such as Figures 1-9 As shown, the bottom of the support seat 703 is fixedly installed at the bottom of the inner cavity of the support platform 1. The support seats 703 are evenly distributed in a circle at the bottom of the cylindrical seat 7, and several sets of support seats 703 are distributed in multiple layers of circles. The top of the support ball 704 is in rolling contact with the bottom of the cylindrical seat 7.

[0042] The support seat 703 provides an installation and limiting position for the inner rolling installation of the support ball 704, and provides rolling support through the bottom of the cylindrical seat 7. In conjunction with the movable support of the support bearing 102, it helps the cylindrical seat 7 to achieve perfect rolling support inside the support 1, thereby increasing the relative stability of the structure and the overall load-bearing capacity.

[0043] In another implementation scheme, such as Figures 1-9 As shown, the discharge holes 705 are evenly distributed around the side wall of the cylindrical seat 7, and the discharge holes 705 are located on the top of the support partition 702. The support bearing 102 located at the bottom of the cylindrical seat 7 is distributed in a segmented structure on the opposite side of the cylindrical seat 7 and the support 1.

[0044] The function of the discharge hole 705 is to allow the accumulation of fumes or other particles generated during welding due to the open opening of the chute 701. During cleaning, the fumes and welding particles are guided through the discharge hole 705 to the area where the support bearing 102 is located, and then discharged through the discharge pipe 101. This facilitates external airflow suction or adds a flow channel for cleaning. The discharge hole 705 is located on opposite sides of the two support bearings 102. This device is manufactured using two different specifications. When heavy-duty workpiece positioning is required, the support bearing 102 below the discharge hole 705 is manufactured and installed in a segmented manner to avoid obstructing the fluid. However, if supporting lightweight workpieces is required, only the upper support bearing 102 is needed. Therefore, a balance is struck between structural strength and fluid flow, increasing the overall relative stability of the structure without hindering operation. For example, when the discharge pipe 101 is connected to an air pump, the fumes generated during welding can pass through the area of ​​the chute 701 and then be discharged through the discharge hole 705, thus adding another cleaning solution.

[0045] In another implementation scheme, such as Figures 1-9 As shown, the positioning and limiting post 801 and the support sleeve 802 are densely packed inside the cylindrical seat 7. The bottom end of the support sleeve 802 is fixedly installed at the bottom of the inner cavity of the cylindrical seat 7, and the top end of the support sleeve 802 is fixedly sleeved inside the support partition 702. The top end of the positioning and limiting post 801 moves through the support partition 702 and extends to the top of the cylindrical seat 7. The permanent magnet 803 is movably sleeved inside the support sleeve 802. The specifications and dimensions of the permanent magnet 803 are compatible with those of the electromagnet 804.

[0046] The positioning and limiting posts 801 and the support sleeve 802 are closely arranged inside the cylindrical base 7 in an array matrix distribution. The dense arrangement can provide a certain limiting effect under various shapes. When the electromagnet 804 is energized, the power is set by the controller to rise slowly, which can slowly cause the permanent magnet 803 to be lifted, avoiding the electromagnetic repulsion force generated by a sudden large current, which would cause the positioning and limiting posts 801 to be ejected. The overall matrix setting is controlled by a single point through the controller. During operation, the vision acquisition camera 601 collects the shape and position of the workpiece. After calculation by the microprocessor of the control system, the electromagnet 804 at a specific position is controlled to start, so that the raised positioning and limiting posts 801 can surround the position where the workpiece needs to be positioned and limit it. The overall flexibility is increased and the ability to deal with various workpieces is increased, thereby increasing the adaptability of the structure.

[0047] In another implementation scheme, such as Figures 1-9 As shown, the outer side of the drive shaft 1002 passes through the support 1 via a bearing and extends to the bottom of the support 1. The drive shaft 1002 and the cylindrical seat 7 are concentric circles. The bottom end of the drive shaft 1002 is connected to a reduction gearbox 10. The input end of the reduction gearbox 10 is connected to a servo motor 1001. The reduction gearbox 10 is fixedly installed at the bottom of the support 1 via a bracket. The servo motor 1001 is fixedly installed on the inner side of the bottom bracket 3.

[0048] The drive shaft 1002 transmits the rotational speed converted by the reduction gearbox 10 to the cylindrical base 7. After the servo motor 1001 rotates, its speed is controlled by the reduction gearbox 10, which drives the transmission through the drive shaft 1002 to rotate the cylindrical base 7. This can limit the rotation of the cylindrical base 7 to a specific range. The servo motor 1001, which has a control system, works in conjunction with the overall operation. The servo motor used is a model with programming capabilities, such as feedback motor speed and rotation angle. Through a fixed transmission ratio, the rotation angle and speed of the cylindrical base 7 are indirectly controlled, which can assist the structure in operation.

[0049] In another implementation scheme, such as Figures 1-10 As shown, the ball screw moving mechanism 9 includes a transmission screw 901. One end of the transmission screw 901 is connected to a transmission motor 902. The transmission motor 902 is fixedly installed at the bottom of the inner side of the slide groove 701 by a bracket. The end of the transmission screw 901 away from the transmission motor 902 is movably sleeved with a bearing bracket 904. The bearing bracket 904 is fixedly installed at the bottom of the inner side of the slide groove 701. The outer side of the transmission screw 901 is threadedly connected to a ball moving seat 905. An H-shaped slide plate 903 is fixedly installed on the top of the ball moving seat 905. The H-shaped slide plate 903 is laterally slidably installed on the opposite side of the slide groove 701 in an H-shape.

[0050] When it is necessary to adjust the relative position of the positioning and clamping mechanism 5, the drive motor 902 is started to rotate, which drives the drive screw 901 to rotate. This causes the ball moving seat 905 to generate a torque under the drive screw 901, and under the sliding installation of the H-shaped slide plate 903 and the slide groove 701, it is converted into linear movement, thereby driving the positioning and clamping mechanism 5 to move, and thus controlling the positioning and clamping mechanism 5 to clamp the workpiece on the outside.

[0051] In another implementation scheme, such as Figures 1-7 and Figure 11 As shown, the positioning and clamping mechanism 5 includes a housing 501. The bottom of the housing 501 is fixedly mounted on the top of the H-shaped slide plate 903. A valve core valve 502 is connected to the back of the housing 501. Several sealing sleeves 509 are fixedly installed inside the housing 501. Both ends of the sealing sleeves 509 are fixedly mounted on the inner wall of the housing 501. A clamping and positioning post 503 is movably sleeved inside the sealing sleeve 509. The clamping and positioning post 503 extends movably to the outside of the housing 501. A sealing piston 504 is fixedly mounted on one end of the clamping and positioning post 503. The sealing piston 504 is movably sleeved inside the sealing sleeve 509, away from the clamping and positioning post. A flexible spring 505 is fixedly installed on one side of the column 503, and a rubber partition 506 is fixedly installed on the other end of the flexible spring 505. A telescopic sleeve 507 is fixedly installed on the side of the rubber partition 506 away from the flexible spring 505. The other end of the telescopic sleeve 507 is fixedly installed inside the sealing sleeve 509. Several hollow holes 508 are opened inside one end of the sealing sleeve 509. The hollow holes 508 are located on the outside of the telescopic sleeve 507. The sealing sleeve 509 and the clamping positioning column 503 are evenly distributed in a rectangular linear pattern inside the box 501, and the sealing sleeve 509 and the clamping positioning column 503 are densely filled inside the box 501.

[0052] When the positioning and clamping mechanism 5 clamps the workpiece, it gradually approaches the workpiece and contacts the outer side of the workpiece through the clamping positioning post 503. Then, as it moves, it compresses the clamping positioning post 503 to retract, causing the sealing piston 504 to move inside the sealing sleeve 509. This compresses the flexible spring 505 and the rubber partition 506, and compresses the telescopic sleeve 507 to retract. The telescopic sleeve 507 provides a limiting effect on the displacement of the rubber partition 506 and the flexible spring 505, providing positional limits within the maximum tension and compression range. After the clamping positioning post 503 moves to the minimum compression position, it generates a clamping force on the workpiece, and the densely arranged... The clamping and positioning post 503 will retract and deform on the outside of the workpiece according to its shape to achieve clamping and limiting, which is convenient for clamping workpieces of different shapes and can be used in conjunction with various workpiece clamping and positioning structures to increase the effectiveness of use. During use, the air valve 502 pressurizes the inside of the box 501. When the air pressure increases, the air pressure will push the rubber partition 506 to maintain its position and reduce deformation. The telescopic rod structure of the telescopic sleeve 507 limits the movement range of the rubber partition 506, thereby reducing the displacement range of the flexible spring 505, which plays an indirect adjustment role, adjusting the clamping movement range within a small range to facilitate clamping operations.

[0053] In another implementation scheme, such as Figure 1 As shown, the intelligent control console 2 is equipped with an intelligent control system.

[0054] The intelligent control console 2 is equipped with an intelligent control system and a synchronous control system to cooperate with the welding control system to control the operation. The visual acquisition camera 601 is the hardware of the visual acquisition and recognition system in the control system. By acquiring visual recognition, the position and shape of the workpiece are determined, and the intelligent control console 2 can control the corresponding telescopic positioning mechanism 8 to start lifting, and control the rotation of the servo motor 1001 to control the speed and position of the cylindrical seat 7, thereby assisting in the operation. It also coordinates the clamping telescopic position of the clamping rotation mechanism 4 and the movement position of the ball screw moving mechanism 9 to position the clamping position of the clamping mechanism 5, which is convenient for cooperating with the robotic arm welding robot to carry out the operation, thus facilitating the welding positioning of the accessories and workpieces of new energy vehicle lights.

[0055] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding positioning tool for new energy vehicle lamp production, comprising a support table (1) and a clamping rotating mechanism (4), characterized in that: The bottom of the support (1) is fixedly installed with a bottom bracket (3), and two sets of support bearings (102) are sleeved on the inner side of the support (1). A cylindrical seat (7) is movably installed on the inner side of the two sets of support bearings (102). A discharge pipe (101) is connected to the bottom end of one side of the support (1). A smart control console (2) is provided on the front of the support (1). A support rod (6) is fixedly installed on the back of the support (1). A visual acquisition camera (601) is fixedly installed on the top of the support rod (6). The clamping and rotating mechanism (4) includes a mounting base (401), an electrically controlled synchronous hydraulic telescopic rod (402) is fixedly mounted on the top of the mounting base (401), a mounting platform (403) is fixedly mounted on the output end of the electrically controlled synchronous hydraulic telescopic rod (402), a worm gear reducer (404) is fixedly mounted on the top of the mounting platform (403), a high-precision electrically controlled telescopic rod (408) is driven to the output end of the worm gear reducer (404), two positioning bearings (413) are sleeved on the outer side of the high-precision electrically controlled telescopic rod (408), a driven gear (405) is driven to the input end of the worm gear reducer (404), a driving gear (406) meshes on the outer side of the driven gear (405), a synchronous control servo motor (407) is driven to one side of the driving gear (406), and a Z-shaped clamping frame (410) is fixedly mounted on the output end of the high-precision electrically controlled telescopic rod (408). The top of the cylindrical seat (7) has two sliding grooves (701), and a ball screw moving mechanism (9) is movably installed inside the two sliding grooves (701). The moving part of the ball screw moving mechanism (9) is fixedly installed with a positioning clamping mechanism (5). A support partition (702) is fixedly installed in the middle part of the cylindrical seat (7). Several telescopic positioning mechanisms (8) are movably installed inside the cylindrical seat (7). Several support seats (703) are slidably installed at the bottom of the cylindrical seat (7). Support balls (704) are rolled inside the support seats (703). Several discharge holes (705) are opened on the side wall of the cylindrical seat (7). A drive shaft (1002) is connected to the bottom end of the cylindrical seat (7). The telescopic positioning mechanism (8) includes a support sleeve (802), a positioning limit post (801) is movably sleeved on the inner side of the top of the support sleeve (802), a permanent magnet (803) is fixedly installed at the bottom of the positioning limit post (801), and an electromagnet (804) is fixedly installed at the bottom of the inner cavity of the support sleeve (802). After the predetermined shape of the workpiece is input and the positioning is acquired by the vision acquisition camera (601), the telescopic positioning mechanism (8) located outside the workpiece is activated. At this time, the electromagnet (804) 804) When energized, a magnetic force is generated, which repels the magnetic pole of the permanent magnet (803), causing the permanent magnet (803) and the positioning limit post (801) to rise, thereby creating a limiting effect on the outside of the workpiece. Multiple telescopic positioning mechanisms (8) form a slotted covering limiting effect on the outside of the workpiece. The positioning clamping mechanism (5) includes a box body (501), the back of the box body (501) is connected to a valve core valve (502), and several sealing sleeves (509) are fixedly installed inside the box body (501). Both ends of the sealing sleeve (509) are fixedly installed on the inner wall of the box body (501). A clamping positioning post (503) is movably sleeved inside the sealing sleeve (509). The clamping positioning post (503) extends movably to the outside of the box body (501). A sealing piston (504) is fixedly installed at one end of the clamping positioning post (503). The sealing piston (504) is movably sleeved inside the sealing sleeve (509). The sealing piston (504) is located away from the clamping positioning post (503). A flexible spring (505) is fixedly installed on one side, and a rubber partition (506) is fixedly installed on the other end of the flexible spring (505). A telescopic sleeve (507) is fixedly installed on the side of the rubber partition (506) away from the flexible spring (505). The other end of the telescopic sleeve (507) is fixedly installed inside a sealing sleeve (509). A plurality of hollow holes (508) are opened inside one end of the sealing sleeve (509), and the hollow holes (508) are located on the outside of the telescopic sleeve (507).

2. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The clamping and rotating mechanism (4) consists of two sets. The mounting base (401) is fixedly installed on the top of the cylindrical base (7) by bolts. The two sets of clamping and rotating mechanisms (4) are symmetrically distributed on the top of the cylindrical base (7). A reinforcing bracket (409) is fixedly installed on one side of the mounting platform (403). The end of the reinforcing bracket (409) away from the mounting platform (403) is movably installed on the outside of one end of the high-precision electrically controlled telescopic rod (408) through a bearing. The outer sides of the two positioning bearings (413) are sleeved inside one end of the mounting platform (403). The synchronous control servo motor (407) is fixedly installed on the top of the worm gear reducer (404).

3. The welding positioning fixture for the production of new energy vehicle headlights according to claim 2, characterized in that: The Z-shaped clamping frame (410) is Z-shaped. The top and bottom ends of the Z-shaped clamping frame (410) are threaded with clamping bolts (411). There are at least two sets of clamping bolts (411). A clamping head (412) is fixedly installed on the opposite end of the clamping bolts (411). A clamping rubber seat (414) is fixedly installed on the end of the Z-shaped clamping frame (410) away from the high-precision electrically controlled telescopic rod (408).

4. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The bottom of the support seat (703) is fixedly installed at the bottom of the inner cavity of the support platform (1). The support seats (703) are evenly distributed in a circle at the bottom of the cylindrical seat (7), and several sets of support seats (703) are distributed in multiple layers in a circle. The top of the support ball (704) is in rolling contact with the bottom of the cylindrical seat (7).

5. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The discharge holes (705) are evenly distributed around the side wall of the cylindrical seat (7), and the discharge holes (705) are located at the top of the support partition (702). The support bearing (102) located at the bottom of the cylindrical seat (7) is distributed in a segmented structure on the opposite side of the cylindrical seat (7) and the support (1).

6. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The positioning and limiting post (801) and the support sleeve (802) are densely packed inside the cylindrical seat (7). The bottom end of the support sleeve (802) is fixedly installed at the bottom of the inner cavity of the cylindrical seat (7). The top end of the support sleeve (802) is fixedly sleeved inside the support partition (702). The top end of the positioning and limiting post (801) moves through the support partition (702) and extends to the top of the cylindrical seat (7). The permanent magnet (803) is movably sleeved inside the support sleeve (802). The specifications and dimensions of the permanent magnet (803) are compatible with those of the electromagnet (804).

7. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The outer side of the drive shaft (1002) passes through the support (1) via a bearing and extends to the bottom of the support (1). The drive shaft (1002) and the cylindrical seat (7) are concentric circles. The bottom end of the drive shaft (1002) is connected to a reduction gearbox (10). The input end of the reduction gearbox (10) is connected to a servo motor (1001). The reduction gearbox (10) is fixedly installed at the bottom of the support (1) by a bracket. The servo motor (1001) is fixedly installed on the inner side of the bottom bracket (3).

8. The welding positioning fixture for the production of new energy vehicle headlights according to claim 1, characterized in that: The ball screw moving mechanism (9) includes a transmission screw (901), one end of which is connected to a transmission motor (902). The transmission motor (902) is fixedly installed at the bottom of the inner side of the slide groove (701) by a bracket. The end of the transmission screw (901) away from the transmission motor (902) is movably sleeved with a bearing bracket (904). The bearing bracket (904) is fixedly installed at the bottom of the inner side of the slide groove (701). The outer side of the transmission screw (901) is threadedly connected to a ball moving seat (905). The top of the ball moving seat (905) is fixedly installed with an H-shaped sliding plate (903). The H-shaped sliding plate (903) is slidably installed in an H-shape on the opposite side of the slide groove (701). The bottom of the box (501) is fixedly installed on the top of the H-shaped sliding plate (903).

9. A welding positioning fixture for the production of new energy vehicle headlights according to claim 8, characterized in that: The sealing sleeve (509) and the clamping positioning post (503) are evenly distributed in a rectangular linear pattern inside the box body (501), and the sealing sleeve (509) and the clamping positioning post (503) are densely packed inside the box body (501).

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