A gun head device for industrial robot welding

Abstract

The utility model belongs to industrial robot welding equipment technical field, and disclose a kind of gun head device for industrial robot welding, including fixed subassembly, the fixed subassembly includes connecting rod, the outside of connecting rod is slidably equipped with slider, the inner wall of slider is symmetrically fixed with the resistance block, the inside of resistance block is fixed with the pivot, the outside of pivot is rotatably equipped with support rod, one end of support rod is rotatably arranged in the inner wall of connecting rod with front connecting rod, the end of front connecting rod away from support rod is fixed with lock head, the outside of front connecting rod is fixedly equipped with limit spring, the inner wall of resistance block is fixedly connected with the both sides of limit spring and support rod, the front side outer wall of connecting rod is equipped with lock hole, the lock hole is connected with lock head, realize tool-free quick disassembly, effectively improve assembly debugging and maintenance overhaul efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial robot welding equipment, specifically a welding torch head device for industrial robots. Background Technology

[0002] With the continuous advancement of industrial automation and intelligent manufacturing technologies, industrial robot welding has become the mainstream welding process in fields such as automobile manufacturing, construction machinery, and steel structure processing due to its advantages of high welding precision, stable production efficiency, and ability to replace manual labor in harsh environments. As the core execution component of a robotic welding system, the welding torch head's connection and fixing method, operational reliability, and environmental adaptability directly affect welding production efficiency, weld quality, and equipment maintenance costs.

[0003] Currently, industrial robot welding guns are generally fixed by flange bolts and clamps. When replacing the welding gun, adjusting the extension length, and performing routine maintenance, special tools such as wrenches must be used to disassemble and install the fasteners one by one. The operation process is cumbersome and time-consuming, which makes it difficult to meet the needs of flexible production lines for rapid changeover and debugging. The vibration of welding operations can easily cause the bolts to loosen and slip, resulting in the displacement of the gun head position. Frequent machine stops are required for calibration, which affects the continuity of production and may even lead to welding quality accidents in severe cases.

[0004] Therefore, a welding torch head device for industrial robots is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a welding torch head device for industrial robots, which has the advantages of tool-free quick disassembly and adjustment, double locking for reliable vibration resistance, and integrated water cooling for efficient heat dissipation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding torch head device for industrial robots, comprising a fixing assembly, a robotic arm fixedly mounted on the rear side of the fixing assembly, the fixing assembly including a connecting rod, a slider slidably mounted on the outer side of the connecting rod, abutments symmetrically fixed on the left and right sides of the inner wall of the slider, a rotating shaft fixedly mounted inside the abutments, a support rod rotatably mounted on the outer side of the rotating shaft, a front connecting rod rotatably mounted through the inner wall of the connecting rod at one end, a lock head fixedly mounted at the end of the front connecting rod away from the support rod, a limiting spring fixedly mounted on the outer side of the front connecting rod, the two sides of the limiting spring being fixedly connected to the inner walls of the support rod and the abutments respectively, a locking hole being opened on the front outer wall of the connecting rod, the locking hole engaging with the lock head, a rear connecting rod rotatably mounted through the outer wall of the connecting rod at one end, and a pressing block fixedly mounted at the end of the rear connecting rod away from the support rod.

[0007] Preferably, guide blocks are symmetrically fixed on both the upper and lower sides of the inner wall of the connecting rod, and guide grooves are symmetrically fixed on the outer wall of the connecting rod, with the guide grooves slidably connected to the guide blocks.

[0008] By adopting the above technical solution, the misalignment between the lock head and the lock hole caused by the slider skew is avoided.

[0009] Preferably, a fixing seat is slidably sleeved on the outer side of one end of the connecting rod, and a sliding groove is radially symmetrically opened on the outer side of the fixing seat, and the sliding groove is slidably connected to the abutment block.

[0010] By adopting the above technical solutions, assembly efficiency can be improved.

[0011] Preferably, the connecting rod is symmetrically fixed with a locking block on its outer side, and one end of the sliding groove is axially symmetrically provided with a locking groove. The locking block is slidably connected with the sliding groove and the locking groove, and the locking block abuts against the abutment block.

[0012] By adopting the above technical solutions, integrated load-bearing, dual-sided synchronous positioning, and dual anti-movement are achieved.

[0013] Preferably, a handle is fixedly sleeved on the outer side of the fixing seat, and a fixing block is fixedly attached to one end of the fixing seat by bolts.

[0014] By adopting the above technical solution, it is convenient to move the gun head manually.

[0015] Preferably, a welding gun assembly is provided between the handle and the fixing block. The welding gun assembly includes a welding gun body, a welding nozzle is fixedly provided at the bottom of the welding gun body, a protective cover is fixedly fitted on the outside of the welding nozzle, and a plurality of heat dissipation holes are provided circumferentially inside the protective cover.

[0016] By adopting the above technical solution, high-temperature welding slag and metal spatter generated during the welding process can be blocked.

[0017] Preferably, the welding torch body has a wire feeding channel, a water inlet channel, and a water return channel inside.

[0018] By adopting the above technical solutions, the working temperature of the welding torch can be reduced.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a lever-type spring reset locking mechanism consisting of a support rod, a rotating shaft, a limiting spring, and a lock head within the fixed component, and cooperating with the axial positioning structure of the locking block and slot between the connecting rod and the fixed seat, and the circumferential limiting structure of the guide groove and guide block, enables tool-free quick assembly and disassembly, effectively improving the efficiency of assembly, debugging, maintenance and repair. Through the dual locking of radial locking and axial locking, the vibration resistance, impact resistance and torsion resistance of the connection part are enhanced, ensuring the stability of welding position accuracy and improving the adaptability and versatility of the device to welding torches of different specifications.

[0020] 2. This utility model provides a protective cover with circumferential heat dissipation holes on the outside of the welding nozzle and integrates an integrated internal flow channel structure with wire feeding channel, water inlet channel and water return channel inside the welding torch body. This achieves protection against welding slag spatter and convective heat dissipation of the welding nozzle, avoids welding nozzle burn-out and adhesion and internal heat accumulation and deformation, and extends the service life of the components. At the same time, the built-in circulating water cooling channel efficiently removes the heat generated by the welding operation, supports long-term continuous operation of the welding torch, and the integrated flow channel reduces external pipelines, reduces the risk of interference in confined spaces, and improves the overall structural compactness and operational reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the rear side of the fixing component of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the slider of the fixing component of this utility model; Figure 4 This is a schematic diagram of the overall front structure of the fixing component of this utility model; Figure 5 This is a schematic diagram of the disassembled front end structure of the welding torch assembly and fixing assembly of this utility model.

[0022] In the diagram: 1. Fixed component; 101. Connecting rod; 102. Slider; 103. Abutment; 104. Rotating shaft; 105. Support rod; 106. Front connecting rod; 107. Lock head; 108. Limiting spring; 109. Rear connecting rod; 110. Press block; 111. Lock hole; 112. Guide groove; 113. Guide block; 114. Fixed base; 115. Slide groove; 116. Slot; 117. Locking block; 118. Handle; 119. Fixed block; 2. Welding torch assembly; 201. Welding torch body; 202. Welding nozzle; 203. Wire feed channel; 204. Protective cover; 205. Heat dissipation hole; 206. Water inlet channel; 207. Water return channel; 3. Robotic arm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The following describes an embodiment of this utility model based on its overall structure.

[0025] like Figures 1 to 5 As shown, this utility model provides a welding torch head device for industrial robots, including a fixing component 1. A robotic arm 3 is fixedly mounted on the rear side of the fixing component 1. The fixing component 1 includes a connecting rod 101. A slider 102 is slidably sleeved on the outer side of the connecting rod 101. Abutments 103 are symmetrically fixed on both sides of the inner wall of the slider 102. A rotating shaft 104 is fixedly mounted inside the abutments 103. A support rod 105 is rotatably sleeved on the outer side of the rotating shaft 104. One end of the support rod 105 passes through the inner wall of the connecting rod 101 and is rotatably mounted on a front connecting rod 106. A lock head 107 is fixedly mounted on the end of the front connecting rod 106 away from the support rod 105. A limiting spring 108 is fixedly sleeved on the outer side of the rod 106. The two sides of the limiting spring 108 are fixedly connected to the inner walls of the support rod 105 and the abutment block 103, respectively. A locking hole 111 is opened on the front outer wall of the connecting rod 101. The locking hole 111 is engaged with the lock head 107. One end of the support rod 105 passes through the outer wall of the connecting rod 101 and is rotatably connected to a rear connecting rod 109. A push block 110 is fixedly installed on the end of the rear connecting rod 109 away from the support rod 105. The push block 110 can be unlocked by pressing it and automatically locked when released. No additional tools are required, which improves the efficiency of gun head installation, position adjustment, maintenance and replacement, and is suitable for the needs of rapid production changeover in industrial sites.

[0026] In this embodiment, guide blocks 113 are symmetrically fixed on the upper and lower sides of the inner wall of the connecting rod 101, and guide grooves 112 are symmetrically fixed on the outer wall of the connecting rod 101. The guide grooves 112 and guide blocks 113 are slidably connected to ensure sliding coaxiality and avoid misalignment caused by the slider 102.

[0027] A fixed seat 114 is slidably sleeved on the outer side of one end of the connecting rod 101. A sliding groove 115 is radially symmetrically opened on the outer side of the fixed seat 114. The sliding groove 115 is slidably connected to the abutment block 103 to improve the sliding coaxiality and circumferential anti-torsion performance.

[0028] A locking block 117 is symmetrically fixed on the outer side of the connecting rod 101, and a locking groove 116 is axially symmetrically opened at one end of the slide groove 115. The locking block 117 is slidably connected to the slide groove 115 and the locking groove 116, and the locking block 117 abuts against the stop block 103, forming a double locking mechanism that completely avoids locking failure and axial loosening risk under impact vibration.

[0029] The outer side of the fixed base 114 is fitted with a handle 118 to facilitate manual welding of the gun head. One end of the fixed base 114 is fixed with a fixing block 119 by bolts.

[0030] A welding torch assembly 2 is provided between the handle 118 and the fixing block 119. The welding torch assembly 2 includes a welding torch body 201. A welding nozzle 202 is fixedly provided at the bottom of the welding torch body 201. A protective cover 204 is fixedly sleeved on the outside of the welding nozzle 202 to effectively block the high-temperature welding slag generated during the welding process. Several heat dissipation holes 205 are opened in the circumferential direction inside the protective cover 204 to realize air convection and dissipate the high temperature generated by welding in time.

[0031] The welding torch body 201 has a wire feeding channel 203, a water inlet channel 206, and a water return channel 207 inside, which can efficiently and continuously remove the large amount of heat generated by welding and significantly reduce the working temperature of the welding torch body 201.

[0032] The working principle and process of a welding torch head device for industrial robots: Install the welding torch body 201 between the handle 118 and the fixing block 119, and tighten the fixing block 119 and the fixing seat 114 with bolts to complete the pre-assembly of the welding torch assembly 2 and the fixing seat 114. Align the connecting rod 101 with the end of the fixed base 114, align the locking block 117 on the outside of the connecting rod 101 with the entrance of the slide groove 115, slide into and rotate the fixed base 114, and lock the locking block 117 into the slot 116. Push the slider 102 forward along the axial direction, and the slider 102 slides along the axial direction of the connecting rod 101. At this time, the guide block 113 is embedded in the guide groove 112 for circumferential limitation to ensure sliding coaxiality. The abutment block 103 slides forward along the slide groove 115. When it slides to the assembly station, the side of the locking block 117 abuts against the end face of the abutment block 103 to complete the locking and positioning. Simultaneously, the lock head 107 is aligned with the lock hole 111 on the connecting rod 101. The limit spring 108 releases its elastic force to push the support rod 105 to rotate around the rotating shaft 104, causing the front connecting rod 106 and the lock head 107 to pop out radially. The lock head 107 is locked into the lock hole 111 to complete the radial locking. When disassembly is required, hold the handle 118 with both hands and press the push blocks 110 on both sides of the slider 102 with your fingers. The push blocks 110 push the support rod 105 to rotate around the rotating shaft 104 through the rear connecting rod 109. The front end of the support rod 105 pulls the front connecting rod 106 and the lock head 107 to retract radially inward, compressing the limit spring 108. The lock head 107 completely disengages from the lock hole 111, and the radial lock is released. Keep the push blocks 110 pressed and pull the slider 102 axially to make the stop block 103 disengage from the slide groove 115. Rotate the fixed seat 114 to disengage from the slide groove 115 and the slot 116. During welding, the welding wire is continuously fed from the wire feeding channel 203 inside the welding torch body 201, and then guided to the surface of the workpiece through the welding nozzle 202. The electric arc is ignited by the power supply to perform the welding operation. External cooling water is introduced into the welding torch body 201 through the water inlet channel 206. After absorbing the high temperature generated by welding, it flows out from the water return channel 207 to form a closed cooling cycle, which continuously reduces the working temperature of the welding torch body 201 and ensures long-term continuous operation. The high-temperature welding slag and metal spatter generated during the welding process are blocked by the protective cover 204 to prevent direct burns to the welding nozzle 202. The heat dissipation holes 205 around the protective cover 204 form air convection, which dissipates the heat accumulated inside the protective cover 204 in time and prevents the welding nozzle 202 from overheating and deforming.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding torch head device for industrial robots, comprising a fixing component (1), characterized in that: A robotic arm (3) is fixedly mounted on the rear side of the fixed assembly (1). The fixed assembly (1) includes a connecting rod (101). A slider (102) is slidably mounted on the outer side of the connecting rod (101). Abutments (103) are symmetrically fixed on the left and right sides of the inner wall of the slider (102). A rotating shaft (104) is fixedly mounted inside the abutments (103). A support rod (105) is rotatably mounted on the outer side of the rotating shaft (104). One end of the support rod (105) passes through the inner wall of the connecting rod (101) and a front connecting rod (106) is rotatably mounted thereon. The front connecting rod (106) is away from the support rod (105). One end of the connecting rod (106) is fixedly provided with a lock head (107), and a limiting spring (108) is fixedly sleeved on the outer side of the front connecting rod (106). The two sides of the limiting spring (108) are respectively fixedly connected to the inner walls of the support rod (105) and the abutment (103). A lock hole (111) is opened on the outer wall of the front side of the connecting rod (101). The lock hole (111) is engaged with the lock head (107). One end of the support rod (105) passes through the outer wall of the connecting rod (101) and is rotatably provided with a rear connecting rod (109). A push block (110) is fixedly provided at the end of the rear connecting rod (109) away from the support rod (105).

2. The welding torch head device for industrial robots according to claim 1, characterized in that: The inner wall of the connecting rod (101) is symmetrically fixed with guide blocks (113) on both the upper and lower sides, and the outer wall of the connecting rod (101) is symmetrically fixed with guide grooves (112), and the guide grooves (112) are slidably connected with the guide blocks (113).

3. The welding torch head device for industrial robots according to claim 1, characterized in that: A fixed seat (114) is slidably sleeved on the outer side of one end of the connecting rod (101), and a sliding groove (115) is radially symmetrically opened on the outer side of the fixed seat (114), and the sliding groove (115) is slidably connected to the abutment (103).

4. The welding torch head device for industrial robots according to claim 3, characterized in that: The connecting rod (101) is symmetrically fixed with a locking block (117) on the outside. One end of the sliding groove (115) is axially symmetrically provided with a locking groove (116). The locking block (117) is slidably connected with the sliding groove (115) and the locking groove (116), and the locking block (117) abuts against the abutment block (103).

5. A welding torch head device for industrial robots according to claim 3, characterized in that: A handle (118) is fixedly sleeved on the outside of the fixed base (114), and a fixing block (119) is fixedly mounted on one end of the fixed base (114) by bolts.

6. A welding torch head device for industrial robots according to claim 5, characterized in that: A welding torch assembly (2) is provided between the handle (118) and the fixing block (119). The welding torch assembly (2) includes a welding torch body (201). A welding nozzle (202) is fixedly provided at the bottom of the welding torch body (201). A protective cover (204) is fixedly sleeved on the outside of the welding nozzle (202). Several heat dissipation holes (205) are opened in the circumferential direction inside the protective cover (204).

7. A welding torch head device for industrial robots according to claim 6, characterized in that: The welding torch body (201) has a wire feeding channel (203) inside, a water inlet channel (206) inside, and a water return channel (207) inside.

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