Vehicle body joint guiding and positioning mechanism for laser brazing

Abstract

The utility model provides a vehicle body seam guiding and positioning mechanism for laser brazing, which relates to the technical field of welding and positioning devices and comprises a base, handrails arranged on two sides of the top of the base, a sliding rail arranged on the top of the base, a sliding seat arranged on the top of the sliding rail, a placing plate arranged on the top of the sliding seat and positioning clamps arranged on two sides of the placing plate. Rubber columns are arranged on the two sides of the base, supporting columns are arranged at the tops of the rubber columns, a motor is arranged at the top of each supporting column, and a laser brazing device is arranged in the center of the bottom of each motor. In this way, the laser brazing device with the top capable of sliding left and right through the sliding groove is matched for multi-directional welding, the welding efficiency is improved, and manpower is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of welding positioning devices, and in particular to a guide and positioning mechanism for car body seams used in laser brazing. Background Technology

[0002] A laser soldering device disclosed in Chinese Patent No. CN107999917A includes a frame, an X-axis moving platform, a Z-axis lifting platform, and a Y-axis feeding and transfer platform. The Y-axis feeding and transfer platform is set on the processing plane of the frame to transfer the soldering product along the Y-axis direction. The Z-axis lifting platform is set on the X-axis moving platform and is laterally positioned on the side of the Y-axis feeding and transfer platform, driving the Z-axis lifting platform to move along the X-axis direction. A laser welding head is installed on the side of the Z-axis lifting platform. The laser output head of the laser welding head uses a coaxial beam to perform laser welding, infrared temperature measurement, and visual positioning at the solder joint position. A wire alignment mechanism is sleeved on the laser output head. The wire output port of the wire alignment mechanism is aligned with the focal point of the coaxial beam, and the wire output port can rotate around the focal point. An automatic wire feeding mechanism is also provided on the side of the laser welding head to convey the solder wire to the wire output port. This invention has precise temperature control, high welding positioning accuracy, high welding efficiency, and stable and reliable operation.

[0003] The aforementioned comparative documents and existing technologies have the following technical problems: When existing laser brazing is working, the device under the welding machine needs to be positioned and fixed. However, when used for body seams, since the body panels are made of iron and have a curved shape, they are not easy to fix and require manual assistance for welding, which reduces welding efficiency and wastes manpower. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser brazing vehicle body seam guide and positioning mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle body seam guiding and positioning mechanism for laser brazing, comprising a base, support brackets on both sides of the top of the base, a slide rail on the top of the base, a slide seat on the top of the slide rail, a placement plate on the top of the slide seat, positioning clamps on both sides of the placement plate, rubber columns on both sides of the base, a support column on the top of the rubber columns, a motor on the top of the support column, and a laser brazing device at the center of the bottom of the motor.

[0006] Preferably, the base and the support frame are connected by welding, the center of the support frame is hollowed out, and the base and the slide rail are connected by bolts.

[0007] Preferably, the bottom of the slide is provided with a slider, the top of the slide is provided with a rotating shaft, and the top of the rotating shaft is provided with a cooling plate.

[0008] Preferably, the size of the slider is the same as the size of the groove of the slide rail, the slider and the slide base are connected by welding, and positioning clamps are provided on both sides of the top of the slide base.

[0009] Preferably, the positioning fixture includes a connecting rod, a universal joint is provided at the top of the connecting rod, a robotic arm is provided at the top of the universal joint, a rotating block is provided at the top of the robotic arm, a clamping claw is provided at the top of the rotating block, and a sensor is provided at the center of the clamping claw.

[0010] Preferably, the robotic arm has a processor inside, and the processor is electrically connected to the universal joint, the sensor, the rotating block, and the clamping jaw.

[0011] Preferably, the laser brazing device includes a press, a telescopic rod at the bottom of the press, a laser welding gun at the bottom of the telescopic rod, a slide rod at the top of the press, a sliding groove at the bottom of the motor, and the slide rod embedded in the sliding groove.

[0012] Beneficial effects

[0013] In this invention, a sliding block is used. The bottom slider on the sliding block can slide on the slide rail, while the top rotating shaft can rotate the top. The rotation is controlled by the operator. The cooling plate is equipped with a cooling pipe inside, which allows it to be cooled for a long time. The welded plate can be quickly cooled when placed on the placement plate.

[0014] In this invention, a positioning clamp is used. The positioning clamp is modeled after the joint of an insect's leg, which allows the universal joint and the robotic arm to be freely adjusted in angle. Through the processor and sensors, the angle and method of gripping are intelligently adjusted, which can better grip curved and hollow body panels. This, combined with the laser brazing device that can slide left and right through the top through the groove, enables multi-directional welding, improving welding efficiency and reducing manpower. Attached Figure Description

[0015] Figure 1 This is an isometric view of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a top-down perspective view of the present invention;

[0018] Figure 4 This is an isometric drawing of the positioning fixture of this utility model;

[0019] Figure 5 This is a cross-sectional view of the present invention.

[0020] Legend:

[0021] 1. Base; 2. Handrail; 3. Slide rail; 4. Slide seat; 401. Slider; 402. Rotating shaft; 403. Cooling plate; 5. Placement plate; 6. Positioning fixture; 601. Connecting rod; 602. Universal joint; 603. Robotic arm; 604. Rotating block; 605. Clamping claw; 606. Sensor; 7. Rubber column; 8. Support column; 9. Motor; 10. Laser brazing device; 1001. Press; 1002. Telescopic rod; 1003. Laser welding gun; 1004. Slide rod; 1005. Slide groove. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0025] Reference Figure 1-5This utility model provides a laser brazing body seam guiding and positioning mechanism, including a base 1, with support frames 2 on both sides of the top of the base 1, and a slide rail 3 on the top of the base 1. The base 1 and the support frames 2 are connected by welding. The center of the support frames 2 is hollowed out. The base 1 and the slide rail 3 are connected by bolts. A slide seat 4 is provided on the top of the slide rail 3, and a placement plate 5 is provided on the top of the slide seat 4. Positioning clamps 6 are provided on both sides of the placement plate 5. The size of the slider 401 is the same as the size of the slot of the slide rail 3. The slider 401 and the slide seat 4 are... The slide block 4 is connected by welding. Positioning clamps 6 are provided on both sides of the top of the slide block 4. Each positioning clamp 6 includes a connecting rod 601, a universal joint 602 at the top of the connecting rod 601, a robotic arm 603 at the top of the universal joint 602, a rotating block 604 at the top of the robotic arm 603, and a clamping jaw 605 at the top of the rotating block 604. A sensor 606 is located at the center of the clamping jaw 605. A processor is located inside the robotic arm 603. The processor is connected to the universal joint 602, the sensor 606, and the sensor 606... The rotating block 604 and sensor 606 are electrically connected to the clamping jaw 605. Rubber pillars 7 are provided on both sides of the base 1, and a support pillar 8 is provided on the top of the rubber pillars 7. A motor 9 is provided on the top of the support pillar 8, and a laser brazing device 10 is provided at the center of the bottom of the motor 9. The laser brazing device 10 includes a press 1001, a telescopic rod 1002 is provided at the bottom of the press 1001, a laser welding gun 1003 is provided at the bottom of the telescopic rod 1002, a slide rod 1004 is provided at the top of the press 1001, and a sliding groove is provided at the bottom of the motor 9. 1005, the slide bar 1004 is embedded in the slide groove 1005, and a positioning clamp 6 is adopted. The positioning clamp 6 imitates the joint of an insect's leg, so that the universal joint 602 and the robotic arm 603 can be freely adjusted in angle. Through the processor and sensor 606, the angle and method of gripping are intelligently adjusted, which can better grip the curved and hollow body panels. This, together with the laser brazing device 10 that can slide left and right through the slide groove 1005 on the top, can perform multi-directional welding, which improves welding efficiency and reduces manpower. Specific Implementation Example 2:

[0027] Reference Figure 1 It adopts air bearings to support the guide slide, and combines a focused laser beam to form an "optical tweezers effect" to correct minute deviations without contact. Based on the reinforcement learning model, it predicts the trend of thermal deformation, adjusts the distribution of the suspension force field in advance, eliminates the accuracy decay caused by mechanical friction, and improves the service life. It is especially suitable for long-term continuous operation.

[0028] In summary:

[0029] The slide block 4 is used so that the bottom slider 401 on the slide block 4 can slide on the slide rail 3, while the top rotating shaft 402 can rotate the top. The rotation is controlled by the operator. The cooling plate 403 is equipped with a cooling pipe inside so that it can be cooled for a long time. The welded plate can be quickly cooled when placed on the placement plate 5.

[0030] The positioning fixture 6 enables intelligent adjustment of the angle and method of gripping, allowing for better gripping of curved and hollowed-out body panels. This, combined with the laser brazing device 10 that slides left and right through the top groove 1005, enables multi-directional welding, improving welding efficiency and reducing manpower.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A laser brazing body seam guiding and positioning mechanism, comprising a base (1), characterized in that: The base (1) has a support frame (2) on both sides of the top, a slide rail (3) on the top of the base (1), a slide seat (4) on the top of the slide rail (3), a placement plate (5) on the top of the slide seat (4), positioning clamps (6) on both sides of the placement plate (5), rubber columns (7) on both sides of the base (1), a support column (8) on the top of the rubber column (7), a motor (9) on the top of the support column (8), and a laser brazing device (10) at the bottom center of the motor (9).

2. The laser brazing body seam guiding and positioning mechanism according to claim 1, characterized in that: The base (1) and the support frame (2) are connected by welding. The center of the support frame (2) is hollowed out. The base (1) and the slide rail (3) are connected by bolts.

3. The laser brazing body seam guiding and positioning mechanism according to claim 1, characterized in that: The bottom of the slide (4) is provided with a slider (401), the top of the slide (4) is provided with a rotating shaft (402), and the top of the rotating shaft (402) is provided with a cooling plate (403).

4. The laser brazing body seam guiding and positioning mechanism according to claim 3, characterized in that: The slider (401) is the same size as the slot of the slide rail (3). The slider (401) and the slide block (4) are connected by welding. Positioning clamps (6) are provided on both sides of the top of the slide block (4).

5. The laser brazing body seam guiding and positioning mechanism according to claim 4, characterized in that: The positioning fixture (6) includes a connecting rod (601), a universal joint (602) is provided at the top of the connecting rod (601), a robotic arm (603) is provided at the top of the universal joint (602), a rotating block (604) is provided at the top of the robotic arm (603), a clamping claw (605) is provided at the top of the rotating block (604), and a sensor (606) is provided at the center of the clamping claw (605).

6. The laser brazing body seam guiding and positioning mechanism according to claim 5, characterized in that: The robotic arm (603) is equipped with a processor, which is electrically connected to the universal joint (602), the sensor (606), the rotary block (604), and the clamping jaw (605).

7. The laser brazing body seam guiding and positioning mechanism according to claim 1, characterized in that: The laser brazing device (10) includes a press (1001), a telescopic rod (1002) at the bottom of the press (1001), a laser welding gun (1003) at the bottom of the telescopic rod (1002), a slide rod (1004) at the top of the press (1001), and a slide groove (1005) at the bottom of the motor (9), with the slide rod (1004) embedded in the slide groove (1005).

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