A welding device for processing automotive parts

Abstract

The present invention relates to the field of automotive part processing, and specifically to a welding device for automotive part processing, which includes a base. A positioning unit is arranged on the base, and the positioning unit includes a limiting component and an execution component; the limiting component includes a side plate vertically arranged on one side of the upper surface of the base. A material plate is arranged on one side of the side plate. The material plate is arranged parallel to the base. An L-shaped placement area is formed between the material plate and the side plate. The execution component is arranged at the horizontally opposite position of the placement area; for this welding device for automotive part processing, through the design of the positioning unit, the support leg can be pre-pressed against the support plate to fix the support leg on the support plate. At the same time, the U-shaped pressing plate can play a role in restricting the position of the support leg, so that one end of the support leg can be vertically attached to the surface of the support plate. The spot welding operation method can weld and stabilize the fitting state of the support plate and the support leg at this time. At the same time, if it is found that the welding is incorrect later, the support plate and the support leg can be disassembled in time.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts processing, and specifically to a welding device for automotive parts processing. Background Art

[0002] Welding of automotive parts is an important link in the automotive manufacturing process, which directly affects the quality and safety of the vehicle. Welding of automotive parts not only includes welding of the parts of the vehicle itself, but also welding of the parts of the vehicle body or brackets, as well as welding of the parts of automotive accessories.

[0003] Among them, there is a support part for the automotive bracket, such as Figure 1 the shown shape, including a support plate and support legs, and one end of the support leg is vertically welded to the support plate, and the support leg is used for supporting, and is made of solid metal material.

[0004] Currently, the welding method for such automotive parts is generally direct full welding, that is, the support plate is fixed, and then the support leg is placed on the support plate, and then full welding is carried out; the support leg is pressed on the support plate by its own gravity. During the process of adjusting the position of the support leg and the support plate, since the support leg is a solid structure and relatively heavy, it is more difficult to adjust the position; and once full welding is completed and it is found that the matching position of the support plate and the support leg is inaccurate, it is difficult to adjust the position subsequently, resulting in the scrapping of this support part.

[0005] Therefore, a welding device for automotive parts processing is proposed for the above problems. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: A welding device for automotive parts processing according to the present invention includes a base, and a positioning unit is arranged on the base, and the positioning unit includes a limiting component and an execution component;

[0008] The limiting component includes a side plate vertically arranged on one side of the upper surface of the base, a material plate is arranged on one side of the side plate, the material plate is arranged parallel to the base, and an L-shaped placement area is formed between the material plate and the side plate, and the execution component is arranged at a horizontally opposite position of the placement area;

[0009] The execution component is arranged at the other side position of the upper surface of the base, and the execution component includes a cylinder, the output end of the cylinder points horizontally to the placement area, the output end of the cylinder is fixedly connected with a U-shaped pressing plate, and the pressing plate can press the workpiece to be welded stably at the position of the placement area.

[0010] Preferably, a lifting component is provided between the limiting component and the execution component. The lifting component is arranged in the middle area of the upper surface of the base, and the lifting component includes an arc-shaped support plate. A top plate is arranged on the lower surface of the support plate, and the top plate is connected to the base.

[0011] Preferably, both ends of the pressing plate horizontally and vertically extend outward to form connecting parts, and a guiding rod is fixedly connected to each connecting part. The guiding rod is slidably connected in guiding holes opened on both sides of the side plate.

[0012] Preferably, a sliding groove is opened on one side of the upper surface of the base, the lower edge of the side plate is slidably connected in the sliding groove, and a rib plate is arranged on the back surface of the side plate. The rib plate is fixedly connected to the base, and the rib plate is used to stably press the side plate.

[0013] Preferably, a sleeve is sleeved outside the top plate, the top plate is slidably connected in the sleeve, a rotating rod is rotatably connected to the upper half of the sleeve, a toothed disc is arranged at one end of the rotating rod, a locking plate is arranged above the toothed disc, the locking plate is slidably connected to the outer side wall of the sleeve through a spring, and a clamping tooth is arranged at the lower end of the locking plate. The clamping tooth can be embedded between adjacent teeth on the toothed disc;

[0014] A rotating body is arranged at the other end of the rotating rod, a cam is arranged at the middle position of the rotating rod, the cam abuts against the lower end surface of the top plate, and both sides of the lower end of the top plate are connected to the inner bottom of the sleeve through tension springs.

[0015] Preferably, a rotating shaft is rotatably connected to the back surface of the side plate. The rotating shaft is located above the rib plate. An L-shaped support rod is fixedly connected to the rotating shaft. The horizontal part of the support rod extends above the placement area, and a ring body is fixedly connected to the end of the support rod. The surface of the ring body is inclined with respect to the material plate.

[0016] Preferably, a lower pressing plate is arranged at the position where the pressing plate is connected to the air cylinder. The lower pressing plate extends towards the placement area, and the extending end of the lower pressing plate is tilted upwards.

[0017] Preferably, the lower pressing plate includes a fixed part and a movable part. The fixed part is fixedly connected to the position where the pressing plate is connected to the air cylinder. The upper edge of the fixed part is rotatably connected to the movable part through a torsion spring. The end of the movable part extends towards the placement area, and an inclined plate is fixedly connected to the connection position between the movable part and the fixed part. The inclined plate is inclined towards the upper surface of the base.

[0018] Preferably, a rectangular opening is opened in the horizontal part of the movable part, and a plurality of roller bodies are rotatably connected in the rectangular opening. The roller bodies can press against the outer surface of the workpiece to be welded.

[0019] Preferably, wedge-shaped blocks are symmetrically arranged above the material plate. The wedge-shaped blocks are fixedly connected to the side plate, and the wedge-shaped blocks can restrict the position of the workpiece to be welded.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The welding equipment for processing automotive parts can, through the design of the positioning unit, pre-press the support legs against the support plate to fix the support legs on the support plate. At the same time, the U-shaped pressing plate can restrict the position of the support legs, enabling one end of the support legs to be vertically attached to the surface of the support plate. The spot welding operation method can weld and stabilize the fitting state of the support plate and the support legs at this time. Meanwhile, if a welding error is found later, the support plate and the support legs can be detached in time.

[0022] 2. In the present invention, for the designed ring body, the gun body of the welding gun is inserted into the ring body. At this time, the welding gun is erected above the welding point through the ring body, and the front end of the welding gun can also touch the welding point, which facilitates welding. At the same time, there is a certain damping between the rotating shaft and the side plate. After completing one spot welding, rotate the rotating shaft to make the welding gun rotate to the next welding point, and then perform spot welding. The ring body erects the welding gun, facilitating the operation of the operator. Description of the Drawings

[0023] Figure 1 It is a three-dimensional view of the support part to be welded and processed in the present invention;

[0024] Figure 2 It is a first-perspective three-dimensional view of the welding equipment for processing automotive parts in the present invention;

[0025] Figure 3 It is a second-perspective three-dimensional view of the welding equipment for processing automotive parts in the present invention;

[0026] Figure 4 It is a top view of the welding equipment for processing automotive parts in the present invention;

[0027] Figure 5 It is a side view of the welding equipment for processing automotive parts in the present invention;

[0028] Figure 6 It is a three-dimensional view of the base in the present invention;

[0029] Figure 7 It is a three-dimensional view of the pressing plate in the present invention;

[0030] Figure 8 It is a three-dimensional view of the lower pressing plate in the present invention;

[0031] Figure 9 It is a schematic diagram of the cooperation between the movable part and the fixed part in the present invention;

[0032] Figure 10 It is a schematic diagram of the cooperation between the support plate and the top plate in the present invention;

[0033] Figure 11 It is a three-dimensional view of the support plate in the present invention;

[0034] Figure 12 This is a perspective view of the rotating rod in the present invention.

[0035] In the figure: 1, base; 2, side plate; 3, material plate; 4, placement area; 5, cylinder; 6, extrusion plate; 7, support plate; 8, top plate; 9, connection part; 10, guide rod; 11, chute; 12, rib plate; 13, sleeve; 14, rotating rod; 15, gear disk; 16, lock plate; 17, engaging tooth; 18, rotating body; 19, cam; 20, tension spring; 21, rotating shaft; 22, support rod; 23, ring body; 24, lower pressing plate; 25, fixing part; 26, movable part; 27, torsion spring; 28, inclined plate; 29, roller body; 30, wedge block; 31, support plate; 32, support leg. Detailed implementation manners

[0036] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0037] Refer to Figure 1 - Figure 8 , a welding device for processing automobile parts, including a base 1, a positioning unit is arranged on the base 1, and the positioning unit includes a limiting component and an execution component;

[0038] The limiting component includes a side plate 2 vertically arranged on one side of the upper surface of the base 1. A material plate 3 is arranged on one side of the side plate 2. The material plate 3 is arranged parallel to the base 1. An L-shaped placement area 4 is formed between the material plate 3 and the side plate 2. The execution component is arranged at a position on the other side of the upper surface of the base 1;

[0039] The execution component is arranged at a position on the other side of the upper surface of the base 1, and the execution component includes a cylinder 5. The output end of the cylinder 5 points horizontally to the placement area 4. The output end of the cylinder 5 is fixedly connected with a U-shaped extrusion plate 6, and the extrusion plate 6 can stably extrude the workpiece to be welded at the position of the placement area 4;

[0040] In this embodiment, the welding equipment for processing automotive parts is the equipment used to support the welding of parts. The specific operation process is as follows: First, place the support plate 31 on the material plate 3 so that the support plate 31 adheres to the side plate 2. At the same time, the lower edge of the support plate 31 adheres to the upper surface of the material plate 3. Then, place the support leg 32 on the material plate 3 in a horizontal state, that is, place one end of the support leg 32 on the upper surface of the material plate 3 and adhere it to the support plate 31. At the same time, place the other end of the support leg 32 inside the U-shaped pressing plate 6. At this time, the inner side wall of the U-shaped pressing plate 6 adheres to the inner side wall of the support leg 32, which can limit the position of the support leg 32 on the material plate 3. Then, drive the cylinder 5. The cylinder 5 pushes the pressing plate 6, and the pressing plate 6 pushes the support leg 32, squeezing the support leg 32 against the support plate 31. At this time, the support leg 32 and the support plate 31 are stabilized. Then, the operator performs welding. When welding, first use spot welding to pre-fix the support leg 32 and the support plate 31 together. After spot welding is completed, control the cylinder 5 to drive the pressing plate 6 to retract, and remove the supported part. Then, perform full welding;

[0041] For the welding equipment for processing automotive parts, through the design of the positioning unit, the support leg 32 can be pre-pressed against the support plate 31 to fix the support leg 32 on the support plate 31. At the same time, the U-shaped pressing plate 6 can play a role in restricting the position of the support leg 32, so that one end of the support leg 32 can be vertically attached to the surface of the support plate 31. The operation method of spot welding can weld and stabilize the fitting state of the support plate 31 and the support leg 32 at this time. At the same time, if it is found that the welding is incorrect later, the support plate 31 and the support leg 32 can be disassembled in time.

[0042] Refer to Figure 1 - Figure 10 A lifting component is provided between the limiting component and the execution component. The lifting component is arranged in the middle area of the upper surface of the base 1. The lifting component includes an arc-shaped support plate 7. The lower surface of the support plate 7 is provided with a top plate 8, and the top plate 8 is connected to the base 1;

[0043] The lifting component is used to lift the support leg 32. Since the support leg 32 is a solid structure and relatively heavy, after the support leg 32 is carried to the base 1, place one end of the support leg 32 on the material plate 3, place the middle position of the support leg 32 on the support plate 7, and place the other end of the support leg 32 inside the pressing plate 6; the support plate 7 supports and holds the support leg 32. At this time, the operator does not need to keep lifting the support leg 32, which reduces labor and at the same time reduces the contact opportunity between the operator and the welding equipment, improving safety.

[0044] Refer to Figure 1 - Figure 9Both ends of the extrusion plate 6 have connecting parts 9 extending outward in a horizontal and vertical direction, and each connecting part 9 is fixedly connected to a guide rod 10, and the guide rod 10 is slidably connected to the guide holes opened on both sides of the side plate 2;

[0045] Connecting parts 9 are arranged at both ends of the extrusion plate 6, and guide rods 10 arranged at the connecting parts 9 are slidably connected in the guide holes, which are used to constrain the moving straightness of the extrusion plate 6, so that when the extrusion plate 6 extrudes the supporting leg 32, the output end of the cylinder 5, the extrusion plate 6, the supporting leg 32 and the supporting plate 31 can be on the same line of action, that is, the force applied by the cylinder 5 can be transmitted along a straight line, ensuring that one end face of the supporting leg 32 can be completely attached to the surface of the supporting plate 31, thereby ensuring the welding quality.

[0046] Reference Figure 1 - Figure 6 A slide groove 11 is provided on one side of the upper surface of the base 1, and the lower edge of the side plate 2 is slidably connected in the slide groove 11. A rib plate 12 is provided on the back of the side plate 2. The rib plate 12 is fixed to the base 1, and the rib plate 12 is used to squeeze and stabilize the side plate 2;

[0047] The support plate 31 has various sizes. In order to adapt to the welding of support plates 31 and support legs 32 of different sizes, the side panel 2 is designed to be detachable and replaceable. The lower edge of the side panel 2 is slidably connected in the slide groove 11, and a rib plate 12 is provided on the back of the side panel 2. The rib plate 12 is used to support the side panel 2 to prevent the gap between the side panel 2 and the slide groove 11 from gradually increasing after the side panel 2 is squeezed multiple times, causing the side panel 2 to tilt.

[0048] Reference Figure 1 - Figure 12 The top plate 8 is sleeved with a sleeve 13 on the outside, and the top plate 8 is slidably connected in the sleeve 13. The upper half of the sleeve 13 is rotatably connected with a rotating rod 14. A toothed disc 15 is provided at one end of the rotating rod 14. A locking plate 16 is provided above the toothed disc 15. The locking plate 16 is slidably connected to the outer wall of the sleeve 13 through a spring. A latching tooth 17 is provided at the lower end of the locking plate 16. The latching tooth 17 can be embedded between adjacent teeth on the toothed disc 15.

[0049] The other end of the rotating rod 14 is provided with a rotating body 18, and a cam 19 is provided in the middle of the rotating rod 14. The cam 19 is pressed against the lower end surface of the top plate 8, and the two sides of the lower end of the top plate 8 are connected to the bottom of the sleeve 13 through tension springs 20;

[0050] In order to accommodate support legs 32 of different sizes, a pallet 7 with a flexibly adjustable height is designed; lift the lock plate 16, the teeth 17 on the lock plate 16 disengage from the teeth on the gear disk 15, rotate the rotating body 18, the rotating body 18 drives the cam 19 to rotate through the rotating rod 14, the cam 19 squeezes the top plate 8 upward, the top plate 8 moves upward, realizing an increase in the height of the pallet 7. After the height adjustment, release the lock plate 16, and the teeth 17 on the lock plate 16 engage with the teeth on the gear disk 15 again to lock the gear disk 15, thereby stabilizing the rotating rod 14 and the cam 19, enabling the cam 19 to stably push up the top plate 8, and then the pallet 7 can stably hold the support leg 32, and at the same time, it also realizes the lifting of support legs 32 of different sizes, enabling this welding equipment for automotive parts processing to weld support parts of different models, specifications, and sizes.

[0051] Refer to Figure 1 - Figure 5 On the back of the side plate 2, a rotating shaft 21 is rotatably connected. The rotating shaft 21 is located above the rib plate 12. An L-shaped support rod 22 is fixedly connected to the rotating shaft 21. The horizontal part of the support rod 22 extends above the placement area 4, and a ring body 23 is fixedly connected to the end of the support rod 22. The surface of the ring body 23 is inclined with respect to the material plate 3.

[0052] A rubber ring is sleeved outside the rotating shaft 21, and the rotating shaft 21 is rotatably connected to the side plate 2 through the rubber ring, realizing that there is damping between the rotating shaft 21 and the side plate 2. When spot welding the support plate 31 and the support leg 32, insert the gun body of the welding gun into the ring body 23. At this time, the welding gun is supported above the welding point through the ring body 23, and at the same time, the front end of the welding gun can also touch the welding point, which is convenient for welding. At the same time, there is a certain damping between the rotating shaft 21 and the side plate 2. After completing one spot weld, rotate the rotating shaft 21 to rotate the welding gun to the next welding point, and then perform spot welding. The ring body 23 supports the welding gun, facilitating the operation of the operator.

[0053] Refer to Figure 1 - Figure 9 At the position where the pressing plate 6 is connected to the cylinder 5, there is a lower pressing plate 24. The lower pressing plate 24 extends towards the placement area 4, and the extended end of the lower pressing plate 24 is tilted upwards.

[0054] By setting the lower pressing plate 24, the lower pressing plate 24 exerts a downward pressing force on the support leg 32, enabling the support leg 32 to be further stabilized. The cooperation between the guide rod 10 and the guide hole realizes the restraint of the support leg 32 in the horizontal direction, while the lower pressing plate 24 realizes the restraint of the support leg 32 in the vertical direction, enabling one end face of the support leg 32 to completely adhere to the surface of the support plate 31.

[0055] Refer to Figure 1 - Figure 9, the lower pressing plate 24 includes a fixed part 25 and a movable part 26. The fixed part 25 is fixedly connected to the connection position between the extrusion plate 6 and the cylinder 5. The upper edge of the fixed part 25 is rotatably connected to the movable part 26 through a torsion spring 27. The end of the movable part 26 extends towards the placement area 4, and an inclined plate 28 is fixedly connected to the connection position between the movable part 26 and the fixed part 25. The inclined plate 28 is inclined towards the upper surface of the base 1;

[0056] Considering the problem that the extension part of the lower pressing plate 24 will hinder the placement of the support leg 32 and the removal after spot welding is completed, the lower pressing plate 24 is designed in sections, that is, the fixed part 25 and the movable part 26; when the cylinder 5 drives the extrusion plate 6 to retreat and reset, the end of the cylinder 5 will squeeze the lower edge position of the inclined plate 28, and the inclined plate 28 drives the movable part 26 to deflect upward around its rotation connection point. At this time, the end of the movable part 26 tilts up, creating space above the base 1. At this time, the support leg 32 can be smoothly placed on the support plate 7, or the support leg 32 after spot welding can be removed together with the support plate 31.

[0057] Refer to Figure 8 - Figure 9 , a rectangular opening is formed in the horizontal part of the movable part 26, and a plurality of roller bodies 29 are rotatably connected in the rectangular opening. The roller bodies 29 can squeeze on the outer surface of the workpiece to be welded;

[0058] A plurality of roller bodies 29 are arranged on the movable part 26. After the support leg 32 is placed on the support plate 7, the cylinder 5 is driven. The cylinder 5 pushes the extrusion plate 6 to move towards the other end of the support leg 32. At the same time, the lower edge of the inclined plate 28 loses the extrusion of the cylinder block of the cylinder 5, and the movable part 26 rotates again close to the surface of the support leg 32 under the torsion of the torsion spring 27 connected thereto. At this time, the roller bodies 29 also adhere to the surface of the support leg 32. When the extrusion plate 6 continues to push forward, a relative displacement occurs between the support leg 32 and the roller bodies 29, and the support leg 32 rubs the roller bodies 29 to rotate, converting the sliding friction between the movable part 26 and the support leg 32 into the rolling friction between the roller bodies 29 and the support leg 32, reducing the friction resistance, reducing wear, and reducing the wear on the surface of the support leg 32.

[0059] Refer to Figure 1 - Figure 5 , wedge-shaped blocks 30 are symmetrically arranged above the material plate 3. The wedge-shaped blocks 30 are fixedly connected to the side plates 2, and the wedge-shaped blocks 30 can restrict the position of the workpiece to be welded; by arranging the wedge-shaped blocks 30, the positions on the left and right sides of the support plate 31 can be restricted, so that one end of the support leg 32 can be spot welded in the middle position of the support plate 31, further improving the welding quality.

[0060] Working principle: The welding equipment for automotive parts processing designed in this embodiment is the equipment used to support the welding of parts. The specific operation process is as follows. First, place the support plate 31 on the material plate 3 so that the support plate 31 adheres to the side plate 2. At the same time, the lower edge of the support plate 31 adheres to the upper surface of the material plate 3. Then, place the support leg 32 on the material plate 3 in a horizontal state, that is, place one end of the support leg 32 on the upper surface of the material plate 3 and adhere it to the support plate 31. At the same time, place the other end of the support leg 32 inside the U-shaped pressing plate 6. At this time, the inner side wall of the U-shaped pressing plate 6 adheres to the inner side wall of the support leg 32, which can limit the position of the support leg 32 on the material plate 3. Then, drive the cylinder 5. The cylinder 5 pushes the pressing plate 6, and the pressing plate 6 pushes the support leg 32, squeezing the support leg 32 against the support plate 31. At this time, the support leg 32 and the support plate 31 are stabilized. Then, the operator performs welding. During welding, first, use spot welding to pre-fix the support leg 32 and the support plate 31 together. After spot welding is completed, control the cylinder 5 to drive the pressing plate 6 to retreat, and remove the supported part. Then, perform full welding;

[0061] For the welding equipment for automotive parts processing, through the design of the positioning unit, the support leg 32 can be pre-pressed against the support plate 31 to fix the support leg 32 on the support plate 31. At the same time, the U-shaped pressing plate 6 can play a role in restricting the position of the support leg 32, so that one end of the support leg 32 can be vertically attached to the surface of the support plate 31. The operation method of spot welding can weld and stabilize the fitting state of the support plate 31 and the support leg 32 at this time. At the same time, if it is found that the welding is incorrect later, the support plate 31 and the support leg 32 can be detached in time;

[0062] The lifting component is used to lift the support leg 32. Since the support leg 32 is a solid structure and relatively heavy, after transporting the support leg 32 to the base 1, place one end of the support leg 32 on the material plate 3, place the middle position of the support leg 32 on the support plate 7, and place the other end of the support leg 32 inside the pressing plate 6; the support plate 7 supports and holds the support leg 32. At this time, the operator does not need to always lift the support leg 32, reducing labor and at the same time reducing the contact opportunity between the operator and the welding equipment, improving safety;

[0063] The connecting parts 9 provided at both ends of the pressing plate 6, and the guide rods 10 provided on the connecting parts 9 are slidably connected in the guide holes, which are used to restrict the straightness of movement of the pressing plate 6, so that when the pressing plate 6 squeezes the support leg 32, the output end of the cylinder 5, the pressing plate 6, the support leg 32, and the support plate 31 can be on the same action line, that is, the force applied by the cylinder 5 can be transmitted along a straight line, ensuring that one end face of the support leg 32 can completely adhere to the surface of the support plate 31 and ensuring the welding quality;

[0064] The support plate 31 has various sizes. In order to adapt to the welding of support plates 31 and support legs 32 of different sizes, the side plate 2 is designed to be detachable and replaceable. The lower edge of the side plate 2 is slidably connected in the slide groove 11. At the same time, a rib plate 12 is provided on the back of the side plate 2. The rib plate 12 is used to support the side plate 2 to prevent the gap between the side plate 2 and the slide groove 11 from gradually increasing after the side plate 2 is squeezed multiple times, causing the side plate 2 to tilt.

[0065] In order to adapt to the support legs 32 of different sizes, a support plate 7 with flexible height adjustment is designed; the lock plate 16 is lifted, and the latch teeth 17 on the lock plate 16 are disengaged from the teeth on the toothed disc 15, and the rotating body 18 is rotated. The rotating body 18 drives the cam 19 to rotate through the rotating rod 14, and the cam 19 presses the top plate 8 upward, and the top plate 8 moves up, so that the height of the support plate 7 is increased. After the height is adjusted, the lock plate 16 is released, and the latch teeth 17 on the lock plate 16 are meshed with the teeth on the toothed disc 15 again to lock the toothed disc 15, thereby stabilizing the rotating rod 14 and the cam 19, so that the cam 19 can stably push up the top plate 8, and then the support plate 7 can stably hold the support legs 32, and at the same time, the support legs 32 of different sizes can be held, so that the welding equipment for automobile parts processing can weld support parts of different models and specifications;

[0066] The outer ring of the rotating shaft 21 is sleeved with a rubber ring, and the rotating shaft 21 is rotatably connected to the side plate 2 through the rubber ring, so that damping is realized between the rotating shaft 21 and the side plate 2. When spot welding the support plate 31 and the support leg 32, the gun body of the welding gun is inserted into the ring body 23. At this time, the welding gun is set above the welding point through the ring body 23, and the front end of the welding gun can also touch the welding point, which is convenient for welding. At the same time, there is a certain damping between the rotating shaft 21 and the side plate 2. After completing a spot welding, the rotating shaft 21 is rotated to rotate the welding gun to the next welding point, and then spot welding is performed. The ring body 23 holds the welding gun, which is convenient for the operator to operate;

[0067] By setting the lower pressing plate 24, the lower pressing plate 24 applies a downward squeezing force to the support leg 32, so that the support leg 32 can be further stabilized, and the cooperation between the guide rod 10 and the guide hole realizes the horizontal constraint on the support leg 32, and the lower pressing plate 24 realizes the vertical constraint on the support leg 32, so that one end surface of the support leg 32 can be completely attached to the surface of the support plate 31;

[0068] Considering the problem that the extension part of the lower pressing plate 24 will hinder the placement and removal of the support leg 32 after spot welding, the lower pressing plate 24 is designed in sections, namely the fixed part 25 and the movable part 26; when the cylinder 5 drives the pressing plate 6 to retreat and reset, the end of the cylinder 5 will squeeze to the lower edge position of the inclined plate 28, and the inclined plate 28 drives the movable part 26 to deflect upward around its rotation connection point. At this time, the end of the movable part 26 tilts up, creating space above the base 1. At this time, the support leg 32 can be smoothly placed on the support plate 7, or the support leg 32 after spot welding can be removed together with the support plate 31.

[0069] A plurality of rollers 29 are arranged on the movable part 26. After the support leg 32 is placed on the support plate 7, the cylinder 5 is driven. The cylinder 5 pushes the pressing plate 6 to move towards the other end of the support leg 32. At the same time, the lower edge of the inclined plate 28 loses the extrusion of the cylinder block of the cylinder 5, and the movable part 26 rotates again close to the surface of the support leg 32 under the torsion of the torsion spring 27 connected thereto. At this time, the rollers 29 also adhere to the surface of the support leg 32. When the pressing plate 6 continues to push forward, a relative displacement occurs between the support leg 32 and the rollers 29, and the support leg 32 rubs the rollers 29 to rotate, converting the sliding friction between the movable part 26 and the support leg 32 into the rolling friction between the rollers 29 and the support leg 32, reducing the frictional resistance, reducing wear, and reducing the wear on the surface of the support leg 32.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing automobile parts, the automobile parts comprising a support plate (31) and a support leg (32), and one end of the support leg (32) is vertically welded to the support plate (31); characterized in that: It comprises a base (1), on which a positioning unit is arranged, and the positioning unit comprises a limit assembly and an actuator assembly; The limiting assembly comprises a side plate (2) vertically arranged on one side of the upper surface of the base (1); a material plate (3) is arranged on one side of the side plate (2); the material plate (3) is arranged parallel to the base (1); an L-shaped placement area (4) is formed between the material plate (3) and the side plate (2); and an actuator assembly is arranged at a position horizontally opposite to the placement area (4); The actuator assembly is arranged at a position on the other side of the upper surface of the base (1), and comprises a cylinder (5), the output end of the cylinder (5) is horizontally directed toward the placement area (4), the output end of the cylinder (5) is fixedly connected to a U-shaped extrusion plate (6), and the extrusion plate (6) is capable of extruding the workpiece to be welded and stabilizing it in the placement area (4); A lifting assembly is provided between the limit assembly and the actuator assembly, the lifting assembly being arranged in the middle area of ​​the upper surface of the base (1), and comprising an arc-shaped supporting plate (7), a top plate (8) being arranged on the lower surface of the supporting plate (7), and the top plate (8) being connected to the base (1); Both ends of the extrusion plate (6) are provided with connecting parts (9) extending vertically outward, each connecting part (9) is fixedly connected to a guide rod (10), and the guide rod (10) is slidably connected to guide holes opened on both sides of the side plate (2); A lower pressing plate (24) is provided at the position where the extrusion plate (6) is connected to the cylinder (5), the lower pressing plate (24) extends in the direction of the placement area (4), and the extended end of the lower pressing plate (24) is tilted and tilted upward; The lower pressing plate (24) comprises a fixed portion (25) and a movable portion (26), wherein the fixed portion (25) is fixedly connected to the connection position between the extrusion plate (6) and the cylinder (5), the upper edge of the fixed portion (25) is rotatably connected to the movable portion (26) via a torsion spring (27), the end of the movable portion (26) extends in the direction of the placement area (4), and an inclined plate (28) is fixedly connected to the connection position between the movable portion (26) and the fixed portion (25), and the inclined plate (28) is arranged to be inclined toward the upper surface of the base (1); A rectangular opening is provided at the horizontal portion of the movable portion (26), and a plurality of roller bodies (29) are rotatably connected in the rectangular opening. The roller bodies (29) can be pressed onto the outer surface of a workpiece to be welded.

2. The welding equipment for automobile parts processing according to claim 1, characterized in that: A slide groove (11) is provided on one side of the upper surface of the base (1), and the lower edge of the side plate (2) is slidably connected in the slide groove (11). A rib plate (12) is provided on the back of the side plate (2), and the rib plate (12) is fixedly connected to the base (1), and the rib plate (12) is used to squeeze and stabilize the side plate (2).

3. The welding equipment for automobile parts processing according to claim 2, characterized in that: The top plate (8) is sleeved with a sleeve (13) on the outside, the top plate (8) is slidably connected in the sleeve (13), the upper part of the sleeve (13) is rotatably connected with a rotating rod (14), one end of the rotating rod (14) is provided with a toothed disc (15), a locking plate (16) is provided above the toothed disc (15), the locking plate (16) is slidably connected to the outer wall of the sleeve (13) via a spring, and a latching tooth (17) is provided at the lower end of the locking plate (16), and the latching tooth (17) can be embedded between adjacent teeth on the toothed disc (15); A rotating body (18) is provided at the other end of the rotating rod (14), and a cam (19) is provided at the middle position of the rotating rod (14). The cam (19) is pressed against the lower end surface of the top plate (8), and both sides of the lower end of the top plate (8) are connected to the inner bottom of the sleeve (13) through tension springs (20).

4. The welding equipment for automobile parts processing according to claim 3 is characterized in that: The back side of the side plate (2) is rotatably connected to a rotating shaft (21), the rotating shaft (21) is located above the rib plate (12), an L-shaped support rod (22) is fixedly connected to the rotating shaft (21), the horizontal portion of the support rod (22) extends above the placement area (4), and a ring body (23) is fixedly connected to the end of the support rod (22), the surface of the ring body (23) is arranged to be inclined with respect to the material plate (3).

5. The welding equipment for automobile parts processing according to claim 4, characterized in that: Wedge blocks (30) are symmetrically arranged above the material plate (3), the wedge blocks (30) are fixedly connected to the side plates (2), and the wedge blocks (30) are capable of constraining the position of workpieces to be welded.

Images