A stud welding device

Abstract

The utility model discloses a kind of stud welding devices, including base, welding power supply, two positioning assemblies and at least one welding assembly, each positioning assembly includes support, clamping cylinder, positioning cone and end clamping arm, positioning cone is horizontally fixed on support, end clamping arm is fixed on swing arm driven by clamping cylinder, welding assembly is located between two positioning assemblies, including first transverse cylinder and welding torch, first transverse cylinder is set along base width direction, welding torch is fixed in first transverse cylinder telescopic end and is electrically connected with welding power supply, welding torch has chuck for sleeving stud, stud in chuck inner sleeve is abutted with anti-collision beam side wall by first transverse cylinder pushing welding torch, stud is welded to the side wall by chuck discharge, the automation welding of stud can be realized, reduce the dependence of stud welding on operator experience and skill.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a stud welding device. Background Technology

[0002] In the automotive manufacturing industry, crash beams, as critical safety components, are typically fixed to the vehicle body using studs. To enhance the connection strength between the studs and the crash beam, current technology generally employs welding to directly weld the studs to the predetermined positions on the crash beam. Currently, this welding operation mainly relies on operators manually holding a welding torch, meaning the studs are manually positioned and the welding work is performed.

[0003] However, this method of welding, which relies on manual hand-held welding torches, has significant drawbacks. The main problem is that the welding process depends entirely on the operator's experience and skills for positioning and operation, making it difficult to consistently guarantee welding position accuracy and resulting in poor weld quality consistency. Furthermore, manual operation is inefficient, unable to meet the cycle time requirements of mass production, and the high labor intensity for operators becomes a bottleneck restricting the improvement of production efficiency and product quality. Utility Model Content

[0004] In view of this, the present invention provides a stud welding device to solve the problem that the welding of anti-collision beam studs in the prior art relies on manual operation, resulting in poor welding quality consistency and low efficiency.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes a stud welding device, comprising: a base, a welding power source, two positioning components and at least one welding component. The two positioning components are distributed at intervals along the length of the base. Each positioning component includes a bracket, a clamping cylinder, a positioning cone and an end clamping arm. The bracket and the clamping cylinder are arranged opposite each other along the width of the base. The positioning cone is horizontally fixed on the bracket, and the end clamping arm is fixed on a swing arm driven by the clamping cylinder.

[0006] The welding assembly is located between two positioning assemblies and includes a first transverse cylinder and a welding torch. The first transverse cylinder is arranged along the width direction of the base, and the welding torch is fixed to the telescopic end of the first transverse cylinder and electrically connected to the welding power source. The welding torch has a chuck for attaching studs.

[0007] The tip of the positioning cone can be inserted into the hole on the side wall of the anti-collision beam to restrict its movement. The clamping cylinder can drive the end clamping arm to abut against the side wall of the anti-collision beam, pressing the anti-collision beam onto the positioning cone and preventing it from detaching from the positioning cone, thus clamping the anti-collision beam. The first transverse cylinder can push the welding gun to make the stud sleeved in the chuck abut against the side wall of the anti-collision beam, and weld the stud to the side wall by discharging through the chuck.

[0008] Preferably, the welding torch is a stud welding torch with a sleeve at its end, and the chuck is coaxially disposed inside the sleeve.

[0009] Preferably, the sleeve has multiple notches at the end away from the welding torch, and the notches are distributed circumferentially along the sleeve.

[0010] Preferably, the positioning assembly further includes an outer lower clamping arm and an inner lower clamping arm. The outer lower clamping arm is mounted on the bracket, and the inner lower clamping arm is mounted on the swing arm. When the tip of the positioning cone is inserted into the hole on the side wall of the anti-collision beam, the outer lower clamping arm abuts against one side of the lower edge of the anti-collision beam. When the end clamping arm abuts against the side wall of the anti-collision beam, the inner lower clamping arm abuts against the other side of the lower edge of the anti-collision beam.

[0011] Preferably, the positioning assembly further includes an outer upper clamping arm and an inner upper clamping arm. The outer upper clamping arm is disposed on the bracket, and the inner upper clamping arm is disposed on the swing arm. When the tip of the positioning cone is inserted into the hole on the side wall of the anti-collision beam, the outer upper clamping arm abuts against one side of the upper edge of the anti-collision beam. When the end clamping arm abuts against the side wall of the anti-collision beam, the inner upper clamping arm abuts against the other side of the upper edge of the anti-collision beam.

[0012] Preferably, the base is provided with a longitudinal slide rail along its length, and a longitudinal cylinder is provided at one end of the longitudinal slide rail in the same direction. The welding assembly is provided in two parts, one of which is a first transverse cylinder slidably connected to the longitudinal slide rail and driven by the longitudinal cylinder.

[0013] Preferably, the longitudinal slide rail is inclined.

[0014] Preferably, the base is provided with a transverse slide rail and a second transverse cylinder along its width direction. The transverse slide rail and the first transverse cylinder are arranged opposite to each other. A slide block is slidably connected to the transverse slide rail. The second transverse cylinder is driven to connect with the slide block. A middle clamping arm is provided on the slide block. The second transverse cylinder can drive the slide block to slide along the transverse slide rail, causing the middle clamping arm to abut against the side wall of the anti-collision beam.

[0015] Preferably, the middle clamping arms are provided in multiple ways and distributed on the upper side wall of the slide along the length direction of the base. The abutting ends of the middle clamping arms are arranged one-to-one with the clamps, and each arm is provided with a notch to avoid the tip of the clamp.

[0016] Preferably, a sensor is provided in the middle of the base, and the sensor is used to identify whether the anti-collision beam is installed in place.

[0017] Implementing the embodiments of this utility model will have the following beneficial effects:

[0018] After adopting the above-mentioned stud welding device, during use, the tip of the positioning cone is first inserted into the hole on the side wall of the anti-collision beam to restrict the movement of the anti-collision beam. Then, the clamping cylinder drives the end clamping arm to abut against the side wall of the anti-collision beam, pressing the anti-collision beam onto the positioning cone and preventing it from detaching from the positioning cone. Thus, the two positioning components clamp the two ends of the anti-collision beam respectively, realizing the positioning and clamping of the anti-collision beam. Finally, the first transverse cylinder pushes the welding gun to make the stud sleeved in the chuck abut against the side wall of the anti-collision beam. The stud is welded to the side wall by the discharge of the chuck. This realizes the automated welding of studs, reduces the dependence of stud welding on the operator's experience and skills, improves the welding position accuracy and welding quality, meets the cycle requirements of mass production, reduces the labor intensity of operators, and improves production efficiency and product quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0022] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0023] Figure 3 This is a perspective view of the positioning component in this utility model;

[0024] Figure 4 This is a perspective view of the welding assembly in this utility model;

[0025] Figure 5 This is a perspective view of some components of this utility model.

[0026] In the diagram: 1. Base; 11. Welding power source; 21. Bracket; 22. Clamping cylinder; 221. Swing arm; 23. Positioning cone; 24. End clamping arm; 25. Outer lower clamping arm; 26. Inner lower clamping arm; 27. Outer upper clamping arm; 28. Inner upper clamping arm; 31. First transverse cylinder; 32. Welding torch; 33. Chuck; 34. Sleeve; 35. Notch; 41. Longitudinal slide rail; 42. Longitudinal cylinder; 5. Transverse slide rail; 51. Second transverse cylinder; 52. Slide seat; 53. Middle clamping arm; 531. Notch; 6. Sensor; a. Stud; b. Anti-collision beam. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1-5 As shown, a stud welding device includes a base 1, a welding power source 11, two positioning components and at least one welding component. The two positioning components are distributed at intervals along the length direction of the base 1. Each positioning component includes a bracket 21, a clamping cylinder 22, a positioning cone 23 and an end clamping arm 24. The bracket 21 and the clamping cylinder 22 are arranged opposite each other along the width direction of the base 1. The positioning cone 23 is horizontally fixed on the bracket 21, and the end clamping arm 24 is fixed on the swing arm 221 driven by the clamping cylinder 22.

[0031] The welding assembly is located between two positioning assemblies and includes a first transverse cylinder 31 and a welding torch 32. The first transverse cylinder 31 is arranged along the width direction of the base 1. The welding torch 32 is fixed to the telescopic end of the first transverse cylinder 31 and is electrically connected to the welding power source 11. The welding torch 32 has a chuck 33 for attaching a stud a.

[0032] In this embodiment, during use, the tip of the positioning cone 23 is first inserted into the hole on the side wall of the anti-collision beam b to restrict the movement of the anti-collision beam b. Then, the clamping cylinder 22 drives the end clamping arm 24 to abut against the side wall of the anti-collision beam b, pressing the anti-collision beam b onto the positioning cone 23 and preventing it from detaching from the positioning cone 23. Thus, the two ends of the anti-collision beam b are clamped by the two positioning components respectively, realizing the positioning and clamping of the anti-collision beam b. Finally, the first transverse cylinder 31 pushes the welding gun 32 to make the stud a sleeved in the chuck 33 abut against the side wall of the anti-collision beam b. The stud a is welded to the side wall by the discharge of the chuck 33, thus realizing the automated welding of the stud a, reducing the dependence of the welding of the stud a on the operator's experience and skills, improving the welding position accuracy and welding quality, so as to meet the cycle requirements of mass production, while reducing the labor intensity of the operator and improving production efficiency and product quality.

[0033] Furthermore, the welding torch 32 is a stud welding torch 32, with a sleeve 34 at its end. The chuck 33 is coaxially arranged inside the sleeve 34. In this embodiment, a commercially available finished stud welding torch 32 is selected. The stud welding torch 32 is directly fixed to the telescopic end of the first transverse cylinder 31 by a contour-fitting clamp, which can reduce the development difficulty of the stud welding device and improve economic efficiency. The sleeve 34 is made of ceramic or high-temperature resistant engineering plastic, which can block arc radiation and metal spatter, and protect the operator's safety.

[0034] Furthermore, the sleeve 34 is provided with multiple notches 35 at the end away from the welding torch 32. The notches 35 are distributed around the circumference of the sleeve 34. During welding, the high-pressure steam and metal vapor generated by the instantaneous melting of the stud a and the workpiece contact surface need to escape quickly. The notches 35 provide a gas escape channel to avoid the accumulation of gas to form pores or welding spatter. Moreover, the molten metal spatter and oxide slag are discharged in a directional manner through the notches 35, reducing the slag adhering to the inner wall of the sleeve 34 and preventing it from affecting the positioning accuracy of the stud a.

[0035] Furthermore, the positioning assembly also includes an outer lower clamping arm 25 and an inner lower clamping arm 26. The outer lower clamping arm 25 is mounted on the bracket 21, and the inner lower clamping arm 26 is mounted on the swing arm 221. When the tip of the positioning cone 23 is inserted into the hole on the side wall of the anti-collision beam b, the outer lower clamping arm 25 abuts against one side of the lower edge of the anti-collision beam b. When the end clamping arm 24 abuts against the side wall of the anti-collision beam b, the inner lower clamping arm 26 abuts against the other side of the lower edge of the anti-collision beam b. The outer lower clamping arm 25 and the inner lower clamping arm 26 jointly clamp the lower edge of the end of the anti-collision beam b, lift the end of the anti-collision beam b, further limit its movement, and improve the positioning accuracy and clamping stability of the anti-collision beam b.

[0036] Furthermore, the positioning assembly also includes an outer upper clamping arm 27 and an inner upper clamping arm 28. The outer upper clamping arm 27 is mounted on the bracket 21, and the inner upper clamping arm 28 is mounted on the swing arm 221. When the tip of the positioning cone 23 is inserted into the hole on the side wall of the anti-collision beam b, the outer upper clamping arm 27 abuts against one side of the upper edge of the anti-collision beam b. When the end clamping arm 24 abuts against the side wall of the anti-collision beam b, the inner upper clamping arm 28 abuts against the other side of the upper edge of the anti-collision beam b. The outer upper clamping arm 27 and the inner upper clamping arm 28 jointly clamp the upper edge of the end of the anti-collision beam b, further limiting its position and improving the positioning accuracy and clamping stability of the anti-collision beam b.

[0037] Furthermore, a longitudinal slide rail 41 is provided on the base 1 along its length direction, and a longitudinal cylinder 42 is provided at one end of the longitudinal slide rail 41 in the same direction. There are two welding components, one of which, a first transverse cylinder 31, is slidably connected to the longitudinal slide rail 41 and drivenly connected to the longitudinal cylinder 42, so that the position of the welding component can be flexibly changed in the length direction of the anti-collision beam b. This facilitates the adjustment of the welding position of the stud a in the horizontal direction according to different product requirements in the later stage, thereby improving the compatibility of the stud welding device.

[0038] Furthermore, the longitudinal slide rail 41 is inclined so that the position of the welding component can be flexibly changed in the width direction of the anti-collision beam b, which facilitates the adjustment of the welding position of the stud a in the longitudinal and vertical directions for different product requirements in the later stage.

[0039] Furthermore, the base 1 is provided with a transverse slide rail 5 and a second transverse cylinder 51 along its width direction. The transverse slide rail 5 is arranged opposite to the first transverse cylinder 31. A slide block 52 is slidably connected to the transverse slide rail 5. The second transverse cylinder 51 is drivenly connected to the slide block 52. A middle clamping arm 53 is provided on the slide block 52. When the operator positions and clamps both ends of the anti-collision beam b through the positioning cone 23 and the end clamping arm 24, the second transverse cylinder 51 will drive the slide block 52 to slide along the transverse slide rail 5, causing the middle clamping arm 53 to abut against the side wall of the middle part of the anti-collision beam b, so as to counteract the subsequent pressure of the welding torch 32 on the other side of the anti-collision beam b, and provide support for the middle part of the anti-collision beam b during the welding process.

[0040] Furthermore, multiple central clamping arms 53 are provided and distributed along the length of the base 1 on the upper side wall of the slide 52. The abutting ends of the central clamping arms 53 are arranged one-to-one with the clamps 33, and each is provided with a notch 531 to avoid the tip of the clamps 33, so as to accurately counteract the pressure of the welding torch 32 on the other side of the anti-collision beam b, and ensure that the anti-collision beam b is evenly stressed.

[0041] Furthermore, a sensor 6 is provided in the middle of the base 1. The sensor 6 is used to identify whether the anti-collision beam b is installed in place. The sensor 6 can be a pressure sensor 6 or a distance sensor 6. This detection method is existing technology and will not be described in this embodiment.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A stud welding device, characterized in that, include: Base, welding power source, two positioning components and at least one welding component; The two positioning components are spaced apart along the length of the base, and each positioning component includes: The bracket and the clamping cylinder are arranged opposite each other along the width of the base; The positioning cone is horizontally fixed on the bracket; The end clamping arm is fixed to the swing arm driven by the clamping cylinder; The welding assembly is located between two positioning assemblies and includes: The first transverse cylinder is arranged along the width of the base; A welding torch is fixed to the telescopic end of the first transverse cylinder and electrically connected to a welding power source. The welding torch has a chuck for attaching studs. The tip of the positioning cone can be inserted into the hole on the side wall of the anti-collision beam to restrict its movement. The clamping cylinder can drive the end clamping arm to abut against the side wall of the anti-collision beam, pressing the anti-collision beam onto the positioning cone and preventing it from detaching from the positioning cone, thus clamping the anti-collision beam. The first transverse cylinder can push the welding gun to make the stud sleeved in the chuck abut against the side wall of the anti-collision beam, and weld the stud to the side wall by discharging through the chuck.

2. The stud welding device according to claim 1, characterized in that, The welding torch is a stud welding torch with a sleeve at its end, and the chuck is coaxially disposed inside the sleeve.

3. The stud welding device according to claim 2, characterized in that, The sleeve has multiple notches at the end away from the welding torch, and the notches are distributed along the circumference of the sleeve.

4. The stud welding device according to claim 1, characterized in that, The positioning assembly also includes an outer lower clamping arm and an inner lower clamping arm. The outer lower clamping arm is mounted on the bracket, and the inner lower clamping arm is mounted on the swing arm. When the tip of the positioning cone is inserted into the hole on the side wall of the anti-collision beam, the outer lower clamping arm abuts against one side of the lower edge of the anti-collision beam. When the end clamping arm abuts against the side wall of the anti-collision beam, the inner lower clamping arm abuts against the other side of the lower edge of the anti-collision beam.

5. The stud welding device according to claim 1, characterized in that, The positioning assembly also includes an outer upper clamping arm and an inner upper clamping arm. The outer upper clamping arm is mounted on the bracket, and the inner upper clamping arm is mounted on the swing arm. When the tip of the positioning cone is inserted into the hole on the side wall of the anti-collision beam, the outer upper clamping arm abuts against one side of the upper edge of the anti-collision beam. When the end clamping arm abuts against the side wall of the anti-collision beam, the inner upper clamping arm abuts against the other side of the upper edge of the anti-collision beam.

6. The stud welding device according to claim 1, characterized in that, The base is provided with a longitudinal slide rail along its length, and a longitudinal cylinder is provided at one end of the longitudinal slide rail in the same direction. There are two welding components, one of which is a first transverse cylinder that is slidably connected to the longitudinal slide rail and driven by the longitudinal cylinder.

7. The stud welding device according to claim 6, characterized in that, The longitudinal slide rail is inclined.

8. The stud welding device according to claim 1, characterized in that, The base is provided with a transverse slide rail and a second transverse cylinder along its width direction. The transverse slide rail and the first transverse cylinder are arranged opposite to each other. A slide block is slidably connected to the transverse slide rail. The second transverse cylinder is driven to connect with the slide block. A middle clamping arm is provided on the slide block. The second transverse cylinder can drive the slide block to slide along the transverse slide rail, causing the middle clamping arm to abut against the side wall of the anti-collision beam.

9. A stud welding device according to claim 8, characterized in that, The central clamping arms are provided in multiple ways and are distributed on the upper side wall of the slide along the length of the base. The abutting ends of the central clamping arms are arranged one-to-one with the clamps, and each arm is provided with a notch to avoid the tip of the clamp.

10. A stud welding device according to claim 1, characterized in that, A sensor is located in the middle of the base, which is used to identify whether the anti-collision beam is installed in place.

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