Automatic welding positioning device for automobile part production

Abstract

The invention provides an automatic welding and positioning device for automobile part production, relates to the field of part welding, and aims to solve the problems of unstable positioning and troublesome manual blanking. The automatic welding and positioning device comprises a positioning assembly and a clamping assembly which are both mounted on a positioning and fixing assembly; the movable clamping piece is driven by the driving air cylinder to get close to the positioning and fixing assembly, the movable clamping piece and the positioning and fixing assembly clamp the brake shoe, and meanwhile the movable clamping piece pushes the brake shoe to drive the clamping assembly so that the positioning plate can move in the direction close to the brake shoe. The positioning plate and the positioning and fixing assembly are used for clamping and positioning the upper portion and the lower portion of the brake shoe, so that the shoe is clamped by the positioning plate, automatic reinforcing and fixing of the shoe are completed, loosening or sliding is avoided in the rolling and bending process of the shoe, and welding stability and welding spot accuracy are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of spare parts welding, and in particular to an automatic welding positioning device for automobile spare parts production. Background Art

[0002] Brake shoe welding is the process of connecting the various components of the brake shoe, such as the shoe plate, web, support parts, etc., using welding materials through heating or pressurization to form a complete brake shoe structure.

[0003] The purpose is to ensure that the brake shoe has sufficient strength and stability to withstand the huge friction and impact force generated during braking, so that the brake shoe can work reliably, ensure the normal operation of the vehicle's braking system, and ensure driving safety.

[0004] Process requirements: The welding process has high requirements. It is necessary to control the welding temperature, current, welding speed and other parameters to avoid problems such as cold welding, leaking welding, welding deformation, etc., and ensure that the welding quality meets the safety standards and performance requirements of the automobile braking system.

[0005] The prior art announcement number CN212552473U discloses a brake shoe quick positioning welding tool, which drives the brake shoe to abut the anti-deviation lifting block and rise through the power shaft of the cylinder, so that the brake shoe abuts the anti-deviation lifting block and abuts the brake shoe positioning mounting block while contacting the bottom of the brake shoe to prevent the brake shoe from sliding back and forth. At this time, the quick positioning clamping assembly is moved close to one end of the brake shoe positioning mounting block, and the two ends of the brake shoe are synchronously clamped by the quick positioning clamping assembly, and the brake shoe abuts the anti-deviation lifting block to achieve multi-directional clamping and abutment of the brake shoe.

[0006] However, there are several problems when welding the brake shoes: 1. The shoe is positioned before welding by placing one end of the shoe in contact with the brake shoe anti-deflection lifting block, and then clamping the shoe through the quick positioning clamping assembly. However, when welding the shoe to the shoe plate, it is necessary to press the shoe to bend while welding. Since the brake shoe is not clamped up and down, it is easy to make the shoe move during the pressing process, resulting in the weld point not being in the set position between the shoe and the shoe plate, resulting in unqualified welded workpiece.

[0007] 2. The brake shoe needs to be removed manually each time welding is performed, which reduces the efficiency of the entire welding work.

[0008] Therefore, a kind of automatic welding positioning device of automobile spare parts production is needed. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an automatic welding positioning device for automobile parts production, aiming to solve the problems of unstable positioning and troublesome manual unloading.

[0010] To solve the above technical problems, the present invention adopts the following technical solution: an automatic welding positioning device for the production of automotive parts, comprising a support base and a positioning component mounted on the upper end of the support base, a brake shoe being provided in the middle of the positioning component, the positioning component comprising a positioning fixing assembly and a positioning clamping assembly, the positioning fixing assembly being fixedly mounted on one side of the upper end of the support base, and the positioning clamping assembly being fixedly mounted on the other side of the upper end of the support base; The positioning and clamping assembly includes a driving cylinder and a slide installed at the driving end of the driving cylinder, and a movable clamp is installed on the side of the slide facing the positioning and fixing assembly; The positioning component also includes a positioning assembly and a clamping assembly, both of which are mounted on the positioning and fixing assembly. The positioning assembly includes a positioning plate and a sliding block fixedly welded to the positioning plate. The driving cylinder drives the movable clamping piece to approach the positioning and fixing assembly. The movable clamping piece and the positioning and fixing assembly clamp the brake shoe. At the same time, the movable clamping piece pushes the brake shoe to drive the clamping assembly so that the positioning plate moves toward the direction close to the brake shoe. The positioning plate and the positioning and fixing assembly clamp and position the brake shoe up and down.

[0011] The brake shoe includes a shoe plate and a shoe piece welded to the outer edge of the shoe plate, and the shoe piece and the shoe plate are welded through a weld seam opened on the shoe piece.

[0012] The positioning and fixing assembly includes a support plate and a clamping plate fixedly installed on the side of the support plate facing the positioning clamping assembly. A semicircular block is fixedly installed on the side of the clamping plate facing the positioning clamping assembly, and a groove matching the semicircular block is opened on the inner side of the movable clamping piece.

[0013] The clamping assembly includes a traction block and a return spring 1 fixedly installed on one side of the traction block. The positioning plate is made of magnetic material, and the traction block is made of magnet material.

[0014] The clamping assembly includes a predetermined plate and a reset spring 2 installed on one side of the predetermined plate. There are multiple reset springs 2, one of which has a conical part installed on its inner side, and a conical hole is opened at the lower end of the sliding block.

[0015] A positioning and blanking component is installed on the support seat, and the positioning and blanking component includes a drive component, a positioning and blanking component and a support component. The drive component is installed on the inner side of the support seat, the upper end of the drive component is fixedly connected to the movable clip, the drive component is engaged with the positioning and blanking component, and the positioning and blanking component is installed on the support seat.

[0016] The driving assembly includes a transmission block and a through-column fixedly installed at one end of the transmission block. The upper end of the transmission block is fixedly connected to the movable clip. A mounting groove is provided on the support seat. The transmission block and the through-column are both located on the inner side of the mounting groove. A gear is also rotatably installed on the support seat at one end of the inner side of the mounting groove. The through-column passes through the middle of the gear. A guide block is installed on the inner side of the gear. A spiral groove and a straight groove are provided on the outer side of the through-column. The guide block matches the spiral groove or the straight groove.

[0017] The positioning and blanking assembly includes an arc-shaped rack and positioning pieces 1 and 2 fixedly mounted at both ends of the arc-shaped rack. Both sides of the arc-shaped rack are movably connected to the support seat, and the inner side of the arc-shaped rack is meshed with the gear.

[0018] The supporting assembly includes a connecting block and a screw threadedly mounted on the connecting block, and the positioning piece 1 is fixedly connected to the connecting block.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. By driving the cylinder to drive the movable clamping piece close to the positioning and fixing assembly, the movable clamping piece and the positioning and fixing assembly clamp the brake shoe, and at the same time the shoe plate moves to push the traction block to move. At this time, the outer side surface of the traction block corresponds to the inner side surface of the positioning plate and begins to adsorb, so that the positioning plate clamps the shoe piece, completing the automatic reinforcement and fixation of the shoe piece. During the rolling and bending process of the shoe piece, no loosening or sliding occurs, ensuring stable welding and accurate welding points. The positioning plate clamps the shoe piece, completing the automatic reinforcement and fixation of the shoe piece. During the rolling and bending process of the shoe piece, no loosening or sliding occurs, ensuring stable welding and accurate welding points.

[0020] 2. The movable clamp is driven by the driving cylinder to approach the positioning and fixing assembly. The movable clamp and the positioning and fixing assembly clamp the brake shoe. As the driving cylinder continues to push, the shoe plate pushes the predetermined plate to drive the tapered part to move. Since the tip of the tapered part and the tapered hole are staggered at the beginning, the tapered part squeezes the tapered hole at this time to make the positioning plate move toward the clamping plate, thereby clamping the shoe. The fixing stability is higher, the positioning of the brake shoe is completed, and the shoe will not loosen or slide during the rolling and bending process, ensuring stable welding and accurate welding points.

[0021] 3. Pull the movable clamp in the opposite direction by driving the cylinder. At this time, the clamping assembly is reset, the positioning plate is loosened, and the spiral groove matches the guide block, causing the gear to rotate, which in turn drives the arc rack to rotate, so that the positioning piece 1 and the support assembly rotate, and the positioning piece 1 and the screw push the brake shoe to rotate, and push the brake shoe to fall from the support seat under the left and right gravity, completing automatic unloading. At the same time, the connecting block fits with the outer side of the splint and the movable clamp, and the slag remaining on the outer side of the splint and the movable clamp is cleaned, achieving the effect of automatic unloading and simultaneous slag cleaning, avoiding long-term slag accumulation, resulting in the problem that the shoe plate and shoe cannot fit together, affecting welding, reducing the trouble and time waste of manual cleaning, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows the overall three-dimensional structure according to one embodiment of the present invention Figure 1 ; Figure 2 Schematically shows the overall three-dimensional structure according to one embodiment of the present invention Figure 2 ; Figure 3 Schematically shows a schematic side view of the overall planar structure proposed according to one embodiment of the present invention; Figure 4 Schematically shows a three-dimensional structural diagram of a positioning clamping assembly and a positioning blanking component proposed according to one embodiment of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of a positioning assembly and a positioning and fixing assembly proposed in accordance with one embodiment of the clamping assembly of the present invention is shown; Figure 6 A schematic diagram of the three-dimensional structure of a positioning assembly and a clamping assembly according to one embodiment of the clamping assembly of the present invention is shown; Figure 7 A schematic diagram of the three-dimensional structure of a positioning assembly and a positioning and fixing assembly proposed in accordance with another embodiment of the clamping assembly of the present invention is shown; Figure 8 A schematic diagram of the three-dimensional structure of a positioning assembly and a clamping assembly according to another embodiment of the clamping assembly of the present invention is shown; Figure 9 Schematically shows a three-dimensional structural diagram of a positioning and fixing assembly and a positioning and blanking assembly proposed according to one embodiment of the present invention; Figure 10Schematically shows a three-dimensional structural diagram of a positioning and blanking component proposed according to one embodiment of the present invention; Figure 11 The figure schematically shows a three-dimensional structural diagram of a driving assembly proposed according to one embodiment of the present invention.

[0023] Numbers in the figure: 1. Support seat; 11. Mounting groove; 2. Positioning and fixing assembly; 21. Support plate; 211. Slide groove; 22. Clamping plate; 221. Traction block; 222. Return spring 1; 223. Preset plate; 224. Return spring 2; 225. Conical piece; 23. Semicircular block; 3. Positioning assembly; 31. Positioning plate; 32. Sliding block; 33. Conical hole; 4. Support assembly; 41. Connecting block; 42. Screw; 5. Brake shoe; 51. Shoe plate; 52. Shoe piece; 521. Weld; 6. Positioning and clamping assembly; 61. Driving cylinder; 62. Slide; 63. Movable clamping piece; 7. Driving assembly; 71. Transmission block; 72. Through column; 721. Spiral groove; 722. Straight groove; 73. Gear; 731. Guide block; 8. Positioning and blanking assembly; 81. Arc rack; 82. Positioning piece 1; 83. Positioning piece 2 DETAILED DESCRIPTION

[0024] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0025] According to one embodiment of the present invention, Figure 1-Figure 2 As shown, an automatic welding positioning device for the production of automotive parts includes a support base 1 and a positioning component installed on the upper end of the support base 1. A brake shoe 5 is provided in the middle of the positioning component. The entire welding positioning device consisting of the support base 1, the positioning component and the brake shoe 5 is equipped with a welding machine. By placing the brake shoe 5 on the positioning component, the positioning component positions the brake shoe 5, and then welding is performed by the welding machine. It should be noted that for the specific working principle of the welding machine, please refer to the brake shoe quick positioning welding tool with the prior art announcement number CN212552473U.

[0026] In this embodiment, combined with Figure 1-Figure 2 As shown, the positioning component includes a positioning and fixing component 2 and a positioning clamping component 6. The positioning and fixing component 2 is fixedly installed on one side of the upper end of the support seat 1, and the positioning clamping component 6 is fixedly installed on the other side of the upper end of the support seat 1. The brake shoe 5 is positioned and fixed by placing it on the positioning and fixing component 2 and then driving and clamping it through the positioning clamping component 6.

[0027] In this embodiment, combined with Figure 3 As shown, the brake shoe 5 includes a shoe plate 51 and a shoe piece 52 welded to the outer edge of the shoe plate 51. The shoe piece 52 and the shoe plate 51 are welded together by a welding machine through a weld 521 opened on the shoe piece 52. The shoe plate 51 is in a bent state before welding, and the shoe piece 52 is in a straight plate shape before welding. A weld 521 is opened on the straight plate shoe piece 52.

[0028] In this embodiment, combined with Figure 4-Figure 5 It is shown that the positioning and fixing component 2 includes a support plate 21 and a splint 22 fixedly installed on the support plate 21 toward the side of the positioning and clamping component 6, a semicircular block 23 is fixedly installed on the splint 22 toward the side of the positioning and clamping component 6, the positioning and clamping component 6 includes a driving cylinder 61 and a slide 62 installed at the driving end of the driving cylinder 61, a movable clamp 63 is installed on the side of the slide 62 toward the positioning and fixing component 2, and a groove matching the semicircular block 23 is provided on the inner side of the movable clamp 63. In the initial state, the gap between the movable clamp 63 and the splint 22 is slightly larger than the width of the shoe plate 51. The shoe plate 51 is inserted into the gap and sleeved on the outer arc surface of the semicircular block 23. At this time, the shoe plate 51 is supported by the semicircular block 23.

[0029] In this embodiment, combined with Figure 4-Figure 6 As shown, the positioning component also includes a positioning assembly 3 and a clamping assembly. The positioning assembly 3 is installed on the support plate 21, wherein the positioning assembly 3 includes a positioning plate 31 and a sliding block 32 fixedly welded on the positioning plate 31. The sliding block 32 matches the slide groove 211 opened on the support plate 21. After the shoe plate 51 is initially positioned, the shoe piece 52 of the straight plate is inserted along the positioning plate 31 and the clamping plate 22 with a positioning gap. Since the positioning plate 31 is set at one end of the arc surface near the outer side of the clamping plate 22, at this time, one end of the shoe piece 52 After being initially positioned, the driving cylinder 61 drives the slide 62 to drive the movable clamp 63 to move toward the splint 22 until the movable clamp 63 and the splint 22 clamp the shoe plate 51. At this time, the outer arc surface of the shoe plate 51 is flush with the outer arc surface of the movable clamp 63 or the splint 22, which makes it easier for the shoe plate 52 to fit the outer arc surface of the shoe plate 51 for welding. At the same time, the movable clamp 63 or the splint 22 can support the shoe plate 52, which is convenient for the welding machine to rotate and weld. At the same time, the support plate 21 and the slide 62 clamp the two sides of the shoe plate 52.

[0030] In this embodiment, combined with Figure 5-Figure 6The figure shows an embodiment of the clamping assembly: the clamping assembly includes a traction block 221 and a return spring 222 fixedly installed on one side of the traction block 221, the positioning plate 31 is a magnetic material, and the traction block 221 is made of a magnet material. During the clamping process of the shoe plate 51, the shoe plate 51 moves and then pushes the traction block 221 to move. At this time, the outer side surface of the traction block 221 and the inner side surface of the positioning plate 31 begin to be adsorbed, so that the positioning plate 31 clamps the shoe piece 52, completing the automatic reinforcement and fixation of the shoe piece 52. During the rolling and bending process of the shoe piece 52, no loosening or sliding will occur, ensuring the stability of welding and the accuracy of the welding points.

[0031] In this embodiment, combined with Figure 7-Figure 8 The figure shows the second embodiment of the clamping assembly: the clamping assembly includes a predetermined plate 223 and a return spring 224 installed on one side of the predetermined plate 223. The return spring 224 is provided with multiple, and a conical member 225 is installed on the inner side of one of the return springs 224. The lower end of the sliding block 32 is provided with a conical hole 33. After the shoe plate 51 is inserted into the gap between the clamping assembly and the movable clamping piece 63, the return pressure of the return spring 224 can preliminarily clamp the shoe plate 51 to ensure that the shoe plate 51 is in a vertical state. In this state, as the driving cylinder 61 continues to push, the shoe plate 51 pushes the predetermined plate 223 to drive the conical part 225 to move. Since the tip of the conical part 225 is staggered with the conical hole 33 at the beginning, the conical part 225 squeezes the conical hole 33 at this time, causing the positioning plate 31 to move toward the clamping plate 22, thereby clamping the shoe 52, and the fixing stability is higher, completing the positioning of the brake shoe 5, and no loosening or sliding will occur during the rolling and bending process of the shoe 52, ensuring stable welding and accurate welding points.

[0032] In this embodiment, combined with Figures 9-11 As shown, a positioning blanking component is installed on the support seat 1, and the positioning blanking component includes a driving assembly 7, a positioning blanking assembly 8 and a support assembly 4, wherein the support assembly 4 includes a connecting block 41 and a screw 42 threadedly installed on the connecting block 41. When the shoe 52 passes between the positioning plate 31 and the splint 22, the end of the shoe 52 fits with the end of the screw 42 to lock the installation position of the shoe 52, ensuring that the shoe 52 is accurately positioned and the staff can operate quickly; Furthermore, the drive assembly 7 includes a transmission block 71 and a through-column 72 fixedly mounted at one end of the transmission block 71. The upper end of the transmission block 71 is fixedly connected to the movable clip 63. A mounting groove 11 is provided on the support base 1. The transmission block 71 and the through-column 72 are both located inside the mounting groove 11. A gear 73 is rotatably mounted on the support base 1 at one end inside the mounting groove 11. The through-column 72 passes through the middle of the gear 73. A guide block 731 is mounted on the inside of the gear 73. A spiral groove 721 and a straight groove 722 are provided on the outer side of the through-column 72. The guide block 731 matches the spiral groove 721 or the straight groove 722. The first and second positioning pieces 82 and 83 are fixedly mounted on the two ends of the arc rack 81, and the arc rack 81 is movably connected to the support seat 1, and the first positioning piece 82 is fixedly connected to the connecting block 41. Before the brake shoe 5 is welded, the upper surfaces of the first and second positioning pieces 82 and 83 are in the same horizontal plane. At this time, it is convenient for the two ends of the shoe plate 51 to be placed on the upper surfaces of the first and second positioning pieces 82 and 83, thereby ensuring that the bottom of the shoe plate 51 is in the same horizontal plane, ensuring that the welding points of the shoe plate 52 and the shoe plate 51 will not be misaligned, and ensuring that unqualified products will not appear after welding. When the driving cylinder 61 drives the movable clamping piece 63 to clamp the shoe plate 51, the guide block 731 is located inside the straight groove 722 and moves. When welding is completed, the driving cylinder 61 is reversed. When the movable clamping piece 63 is pulled forward, the clamping assembly is reset, the positioning plate 31 is loosened, the spiral groove 721 matches the guide block 731, causing the gear 73 to rotate, thereby driving the arc rack 81 to rotate, so that the positioning piece 1 82 and the support assembly 4 rotate, the positioning piece 1 82 and the screw 42 push the brake shoe 5 to rotate, pushing it to fall from the support seat 1 under the left and right gravity, completing automatic unloading. At the same time, the connecting block 41 fits with the outer side of the splint 22 and the movable clamping piece 63, and the slag remaining on the outer side of the splint 22 and the movable clamping piece 63 is cleaned, achieving the effect of automatic unloading and simultaneous slag cleaning, avoiding long-term slag accumulation, resulting in the shoe plate 51 and the shoe piece 52 being unable to fit together, affecting the welding problem, reducing the trouble and time waste of manual cleaning, and improving work efficiency.

[0033] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. An automatic welding positioning device for automobile parts production, characterized in that: It includes a support base and a positioning component installed on the upper end of the support base, a brake shoe is provided in the middle of the positioning component, the positioning component includes a positioning and fixing component and a positioning and clamping component, the positioning and fixing component is fixedly installed on one side of the upper end of the support base, and the positioning and clamping component is fixedly installed on the other side of the upper end of the support base; The positioning and clamping assembly includes a driving cylinder and a slide installed at the driving end of the driving cylinder, and a movable clamp is installed on the side of the slide facing the positioning and fixing assembly; The positioning component further includes a positioning assembly and a clamping assembly, both of which are mounted on the positioning and fixing assembly, and the positioning assembly includes a positioning plate and a sliding block fixedly welded to the positioning plate; The driving cylinder drives the movable clamping piece to approach the positioning and fixing assembly. The movable clamping piece and the positioning and fixing assembly clamp the brake shoe. At the same time, the movable clamping piece pushes the brake shoe to drive the clamping assembly so that the positioning plate moves toward the direction close to the brake shoe. The positioning plate and the positioning and fixing assembly clamp and position the brake shoe up and down.

2. The automatic welding positioning device for automobile parts production according to claim 1, characterized in that: The brake shoe comprises a shoe plate and a shoe piece welded to the outer edge of the shoe plate, and the shoe piece is welded to the shoe plate through a weld seam opened on the shoe piece.

3. The automatic welding positioning device for automobile parts production according to claim 1, characterized in that: The positioning and fixing assembly includes a support plate and a clamping plate fixedly installed on the side of the support plate facing the positioning clamping assembly. A semicircular block is fixedly installed on the side of the clamping plate facing the positioning clamping assembly. A groove matching the semicircular block is provided on the inner side of the movable clamping piece.

4. The automatic welding positioning device for automobile parts production according to claim 3, characterized in that: The clamping assembly includes a traction block and a reset spring 1 fixedly installed on one side of the traction block. The positioning plate is made of magnetic material, and the traction block is made of magnet material.

5. The automatic welding positioning device for automobile parts production according to claim 3, characterized in that: The clamping assembly includes a predetermined plate and a second return spring installed on one side of the predetermined plate. There are multiple second return springs, one of which has a conical part installed on the inner side, and a conical hole is opened at the lower end of the sliding block.

6. The automatic welding positioning device for automobile parts production according to claim 1, characterized in that: A positioning and blanking component is installed on the support seat, and the positioning and blanking component includes a drive component, a positioning and blanking component and a support component. The drive component is installed on the inner side of the support seat, and the upper end of the drive component is fixedly connected to the movable clip. The drive component is meshed with the positioning and blanking component, and the positioning and blanking component is installed on the support seat.

7. The automatic welding positioning device for automobile parts production according to claim 6, characterized in that: The driving assembly includes a transmission block and a through-column fixedly mounted at one end of the transmission block. The upper end of the transmission block is fixedly connected to the movable clip. A mounting groove is provided on the support seat. The transmission block and the through-column are both located on the inner side of the mounting groove. A gear is also rotatably mounted on the support seat located at one end of the inner side of the mounting groove. The through-column passes through the middle of the gear, and a guide block is installed on the inner side of the gear.

8. The automatic welding positioning device for automobile parts production according to claim 7, characterized in that: A spiral groove and a straight groove are provided on the outer side of the through column, and the guide block matches the spiral groove or the straight groove.

9. The automatic welding positioning device for automobile parts production according to claim 7, characterized in that: The positioning and blanking assembly includes an arc-shaped rack and positioning pieces 1 and 2 fixedly mounted at both ends of the arc-shaped rack. Both sides of the arc-shaped rack are movably connected to the support seat, and the inner side of the arc-shaped rack is meshed with the gear.

10. The automatic welding positioning device for automobile parts production according to claim 9, characterized in that: The support assembly includes a connecting block and a screw threadedly mounted on the connecting block, and the positioning piece 1 is fixedly connected to the connecting block.

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