Clamp welding system

Abstract

The utility model provides a kind of clamping welding system, it includes: rack, welding module and detachable first clamping module, second clamping module are set on the rack;The first clamping module includes the first clamping mechanism for clamping the one end end of pipeline workpiece and the second clamping mechanism for the first end component pre-welded to the other end end of pipeline workpiece clamping positioning;The second clamping module includes the third clamping mechanism for clamping the first end component positioning and the fourth clamping mechanism for the second end component pre-welded to the one end end of pipeline workpiece clamping positioning;The welding module includes the first welding gun assembly, second welding gun assembly corresponding the second clamping mechanism or fourth clamping mechanism side setting. By replacing clamping module, the clamping positioning and welding setting of both ends and both sides end component of same pipeline workpiece are realized, so that welding system has simple and efficient welding application characteristics.

Description

Technical Field

[0001] This utility model relates to a welding system, and more specifically, to a clamping welding system. Background Technology

[0002] In existing technologies, for welding applications of pipe workpieces with curvature, the clamping and positioning structure of the clamping application is fixed, and at least three sets of clamping and positioning structures need to be set in order to adapt to the curvature of the workpiece. The structure is costly and inconvenient to use.

[0003] For welding of pipe workpieces, based on the connection between the circumferential pipe diameter port and the external structure, at least two sets of welding points are required to ensure welding stability. In the application of fixed clamping and positioning structures, the welding gun assembly with a single operation requires manual welding of two sets of welding points, which is quite complicated.

[0004] For pipe workpieces that require fitting and welding connections between end components, existing technologies require multi-station operations. After welding the pipe workpiece to one end component, the workpiece is removed and moved to another station for welding to the other end component. This requires setting up two sets of welding equipment and two workstations, resulting in high equipment application costs. Utility Model Content

[0005] The purpose of this invention is to provide a clamping welding system to overcome the shortcomings of the prior art.

[0006] A clamping welding system includes: a frame on which a welding module and detachable first clamping module and second clamping module are mounted; the first clamping module includes a first clamping mechanism for clamping one end of a pipe workpiece and a second clamping mechanism for clamping and positioning a first end member pre-welded to the other end of the pipe workpiece; the second clamping module includes a third clamping mechanism for clamping and positioning the first end member and a fourth clamping mechanism for clamping and positioning a second end member pre-welded to one end of the pipe workpiece; the welding module includes a first welding torch assembly and a second welding torch assembly disposed beside the second clamping mechanism or the fourth clamping mechanism.

[0007] Furthermore, the first clamping mechanism includes a first snap-fit ​​member for snapping onto one end of the pipe workpiece, and a first snap-fit ​​driving mechanism for driving the first snap-fit ​​member to move closer to or away from the pipe workpiece; the second clamping mechanism includes a support groove adapted to be fitted onto the first end member; the first snap-fit ​​member is located above the support groove, and the snap-fit ​​movement direction of the first snap-fit ​​member has an angle with the opening orientation of the support groove.

[0008] Furthermore, the first snap-fit ​​driving mechanism includes a vertically arranged positioning bracket, a limiting plate on the positioning bracket, and a limiting groove on the limiting plate; a movable rod is passed through the positioning bracket, one end of the movable rod is connected to the first snap-fit ​​component, and the other end of the movable rod is rotatably connected to a limiting ring in a positioning configuration, a limiting rod is extended from the outer periphery of the limiting ring, and an elastic member is connected between the limiting ring and the positioning bracket.

[0009] Furthermore, the second clamping mechanism includes a support base, on the upper side of which a support groove is provided. When the first end member is installed in the support groove, the upper side of the first end member is flush with the upper end face of the support base. The support base has pressing clamping portions on both sides, each pressing clamping portion including a pressing clamping block and a pressing drive device. The pressing drive device is adapted to drive the pressing clamping block to perform a pressing drive movement toward the position where the support groove intersects with the upper end face of the support base.

[0010] Furthermore, the first clamping module includes a clamping bracket, and the first clamping mechanism and the second clamping mechanism are integrated on the clamping bracket, with grip handles provided on both sides of the clamping bracket.

[0011] Furthermore, the first welding torch assembly includes a first welding torch section, which is connected to a first welding drive mechanism. The first welding drive mechanism drives the first welding torch section to perform spot welding at the junction of the positioned pipe workpiece and the first end component. The first welding drive mechanism includes a vertically arranged welding bracket, which is rotatably connected to a welding drive cylinder. The drive end of the welding drive cylinder is connected to a welding torch clamping member for clamping and positioning the first welding torch section. A guide mechanism for driving guidance is connected between the welding drive cylinder and the welding torch clamping member.

[0012] Furthermore, the third clamping mechanism includes a second snap-fit ​​driving mechanism, the driving end of which is provided with a second snap-fit ​​member, which is adapted to snap-fit ​​the first end member.

[0013] Furthermore, the fourth clamping mechanism includes a support bracket with a support end face, the upper side of which is recessed to form a positioning groove; clamping drive mechanisms are provided on both sides of the support bracket, the clamping drive mechanisms on both sides drive and connect lateral clamping blocks, the lateral clamping blocks on both sides are arranged facing each other and corresponding to the positioning groove, and the facing side of the lateral clamping blocks on both sides is provided with an arc-shaped clamping recess.

[0014] The beneficial effects of this utility model are as follows:

[0015] By replacing the clamping modules on both sides, and using the positioning drive settings of the welding gun assemblies on both sides for the welding position, the welding position settings of the replaced clamping modules can be applied. This allows for the separate clamping, positioning, and welding settings of the two ends and two sides of the same pipe workpiece in the welding system by changing the clamping modules, giving the welding system a simple and efficient welding application feature. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the structural assembly application of the first process of the clamping and welding system of this utility model;

[0017] Figure 2 This is a schematic diagram of the structural configuration of the first welding torch assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structural configuration of the first clamping module of this utility model;

[0019] Figure 4 This is a schematic diagram of the structural setup of the second clamping module of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] Frame 1, First clamping module 11, Clamping bracket 111, Grip handle 112, Second clamping module 12

[0022] First clamping mechanism 2, first latching component 21, first latching drive mechanism 22, positioning bracket 23, limiting plate 231, limiting groove 232, movable rod 233, limiting ring 234, limiting rod 235, elastic component 236.

[0023] Second clamping mechanism 3, support base 30, support groove 31, pressing clamping part 32, pressing clamping block 321, pressing drive device 322.

[0024] The components include: third clamping mechanism 4, second locking component 41, locking plate 411, locking cone 412, second locking drive mechanism 42, bracket body 421, and push rod 422.

[0025] Fourth clamping mechanism 5, support bracket 51, positioning groove 52, clamping drive mechanism 53, lateral clamping block 54

[0026] Welding module 6, first welding torch assembly 61, first welding torch section 611, first welding drive mechanism 612, welding bracket 613, arc-shaped hole 6131, welding drive cylinder 614, welding torch clamp 615, guide mechanism 616, second welding torch assembly 62.

[0027] Pipe workpiece 7, first end component 71, mounting hole 711, second end component 72. Detailed Implementation

[0028] To make the technical solution, purpose and advantages of this utility model clearer, the following explanation is given in conjunction with the accompanying drawings and embodiments.

[0029] like Figures 1 to 4 As shown, the present invention provides a clamping and welding system, which is used to clamp and position a pipe workpiece 7 and a first end member 71 and a second end member 72 that are used for welding at both ends of the pipe workpiece 7, and then perform welding operations to achieve the joining of the pipe workpiece 7 with the two end members.

[0030] The clamping welding system includes a frame 1, on which a welding module 6 and detachable first clamping module 11 and second clamping module 12 are mounted. The first clamping module 11 includes a first clamping mechanism 2 for clamping one end of a pipe workpiece 7 and a second clamping mechanism 3 for clamping and positioning a first end member 71 pre-welded to the other end of the pipe workpiece 7. The second clamping module 12 includes a third clamping mechanism 4 for clamping and positioning the first end member 71 and a fourth clamping mechanism 5 for clamping and positioning a second end member 72 pre-welded to one end of the pipe workpiece 7. The welding module 6 includes a first welding torch assembly 61 and a second welding torch assembly 62 disposed beside the second clamping mechanism 3 or the fourth clamping mechanism 5.

[0031] In actual welding applications, the first clamping module 11 is first installed on the frame 1 as the first step. Under the clamping of the first clamping mechanism 2 and the second clamping mechanism 3, the pipe workpiece 7 and the first end member 71 are pre-welded and clamped for positioning. Then, the first welding gun assembly 61 and the second welding gun assembly 62 are driven to perform two-point welding at the connection position between the pipe workpiece 7 and the first end member 71, thus completing the welding connection between the pipe workpiece 7 and the first end member 71.

[0032] Subsequently, the welded pipe workpiece 7 and the first end component 71 are disassembled from the first clamping module 11, and the first clamping module 11 is removed from the frame 1. The second clamping module 12 replaces the first clamping module 11 and is mounted on the frame 1, which is the second process. The welded pipe workpiece 7 and the first end component 71 are positioned and mounted to the third clamping mechanism 4, and the second end component 72 is clamped by the fourth clamping mechanism 5, so that the unwelded end of the welded pipe workpiece 7 aligns with the position of the second end component 72. The third clamping mechanism 4 and the fourth clamping mechanism 5 perform pre-welding positioning of the pipe workpiece 7 and the second end component 72. Then, the first welding gun assembly 61 and the second welding gun assembly 62 are driven to perform two-point welding at the connection position between the pipe workpiece 7 and the second end component 72, thus completing the welded connection between the pipe workpiece 7 and the second end component 72.

[0033] The first clamping module 11 and the second clamping module 12 are used alternately (the first process and the second process alternate) to clamp and weld the pipe workpiece 7, the first end component 71 and the second end component 72, so as to realize the assembly line production of a pipe workpiece 7 with end components at both ends.

[0034] For a welding application of a pipe workpiece 7 with curvature, the first clamping module 11 (a combination structure of the first clamping mechanism 2 and the second clamping mechanism 3) is configured with the following cooperation relationship:

[0035] The first clamping mechanism 2 includes a first clamping member 21 for clamping one end of the pipe workpiece 7 and a first clamping drive mechanism 22 for driving the first clamping member 21 to move closer to or away from the pipe workpiece 7; the second clamping mechanism 3 includes a support groove 31 adapted to be fitted onto the first end member 71; the first clamping member 21 is located above the support groove 31, and the clamping movement direction of the first clamping member 21 has an angle with the opening orientation of the support groove 31.

[0036] With the angle of contact set, a pipe workpiece 7 with an angular curvature is adapted to be fitted. Under the drive of the first snap-fit ​​driving mechanism 22, the first snap-fit ​​member 21 presses against one end of the pipe workpiece 7, while the other end of the pipe workpiece 7 is connected and positioned with the first end member 71, thus realizing the overall assembly and positioning of the pipe workpiece 7 and the first end member 71 on the first clamping module 11. The angle of contact is set within the range of 60 degrees to 120 degrees based on the curvature range of the pipe workpiece 7. In this embodiment, the applied angle is set to 80 degrees.

[0037] In a preferred embodiment, the first snap-fit ​​driving mechanism 22 is configured as follows: the first snap-fit ​​driving mechanism 22 includes a vertically arranged positioning bracket 23, a limiting plate 231 on the positioning bracket 23, and a limiting groove 232 on the limiting plate 231; a movable rod 233 is threaded through the positioning bracket 23, one end of the movable rod 233 is connected to the first snap-fit ​​member 21, and the other end of the movable rod 233 is rotatably connected to a limiting ring 234 in a positioning configuration; a limiting rod 235 extends outward from the outer periphery of the limiting ring 234, and an elastic member 236 connects the limiting ring 234 and the positioning bracket 23; the angle between the extension direction of the movable rod 233 and the opening orientation of the supporting groove 31 is 80 degrees.

[0038] The user can hold the limiting rod 235 and push the movable rod 233 forward (towards the pipe workpiece 7) in conjunction with the first locking member 21. Then, when the movable rod 233 is pushed forward to the limiting groove 232, the limiting rod 235 is rotated and locked into the limiting groove 232, thus completing the release and effective positioning of the first locking member 21. At this time, the elastic member 236 possesses elastic potential energy. When it is necessary to disassemble the welded pipe workpiece 7, the limiting rod 235 is rotated out of the limiting groove 232. Under the action of elastic potential energy, the movable rod 233, in conjunction with the first locking member 21, retracts, releasing the locking restriction on the pipe workpiece 7.

[0039] For a first end member 71 structure with a plate-shaped strip and a through hole at the end of the pipe workpiece 7, the second clamping mechanism 3 structure is configured as follows: it includes a support base 30, and a support groove 31 is provided on the upper side of the support base 30. When the first end member 71 is installed in the support groove 31, the upper side of the first end member 71 is flush with the upper end face of the support base 30. The support base 30 is provided with pressing clamping parts 32 on both sides. The pressing clamping parts 32 include pressing clamping blocks 321 and pressing driving devices 322. The pressing driving devices 322 are adapted to drive the pressing clamping blocks 321 to perform pressing driving movement towards the position where the support groove 31 and the upper end face of the support base 30 intersect.

[0040] The first end member 71 is inserted into the support groove 31, and its through-hole connects to the cylindrical end of the pipe workpiece 7 to achieve basic connection and positioning. With the positioning and support of the first snap-fit ​​member 21, the connection position between the pipe workpiece 7 and the first end member 71 is also relatively positioned. Then, the downward clamping part 32 is driven, causing the downward clamping block 321 to press down and clamp the first end member 71 on both sides, thus completing the overall clamping and positioning application of the pipe workpiece 7 and the first end member 71. Preparation for welding is then complete.

[0041] The first welding torch assembly 61 and the second welding torch assembly 62 can adopt the same structural configuration. Taking the structure of the first welding torch assembly 61 as an example, its application includes a first welding torch part 611, which is connected to a first welding drive mechanism 612. The first welding drive mechanism 612 drives the first welding torch part 611 to perform fixed-point welding at the junction position of the positioned and connected pipe workpiece 7 and the first end member 71. The first welding drive mechanism 612 includes a vertically arranged welding bracket 613, which is rotatably connected to a welding drive cylinder 614. The drive end of the welding drive cylinder 614 is connected to a welding torch clamping member 615 for clamping and positioning the first welding torch part 611. A guide mechanism 616 for driving guidance is connected between the welding drive cylinder 614 and the welding torch clamping member 615.

[0042] The welding bracket 613 is connected to the welding drive cylinder 614 by a rotating shaft, and the welding bracket 613 has an arc-shaped hole 6131 around the rotating shaft. The welding drive cylinder 614 extends a limiting connector into the arc-shaped hole 6131 to form a rotation limit. The guiding mechanism 616 includes a guide rail disposed on the welding drive cylinder 614, and the welding torch holder 615 is provided with a guide slider to be slidably connected to the guide rail. The welding torch holder 615 clamps the first welding torch part 611 by means of adjustable clamping blocks on both sides, so that the welding end of the first welding torch part 611 faces the welding position of the pipe workpiece 7 and the corresponding end component. Under the drive of the welding drive cylinder 614, spot welding is achieved.

[0043] To facilitate the disassembly and relocation of the first clamping module 11 and the second clamping module 12, the corresponding clamping module structure also includes a clamping bracket 111. Taking the first clamping module 11 as an example, the first clamping mechanism 2 and the second clamping mechanism 3 are integrated on the clamping bracket 111, and grip handles 112 are provided on both sides of the clamping bracket 111 for gripping and relocating the clamping module.

[0044] As a preferred structural implementation, the second clamping module 12 is configured as follows:

[0045] A third clamping mechanism 4 and a fourth clamping mechanism 5 are provided on the clamping bracket 111. The third clamping mechanism 4 and the fourth clamping mechanism 5 are arranged in the same position as the first clamping mechanism 2 and the second clamping mechanism 3 to adapt to the welding positioning of the workpiece. Preferably, the third clamping mechanism 4 adopts a structural arrangement similar to that of the first clamping mechanism 2, and a corresponding second snap-fit ​​driving mechanism 42 is provided. The second snap-fit ​​driving mechanism 42 includes a vertically arranged bracket body 421 and a push rod 422 passing through it. The workpiece is snapped by manually pushing and pulling the push rod 422 to activate the corresponding snap-fit ​​structure. The third clamping mechanism 4 is connected to one end of the push rod 222 by a second snap-fit ​​member 41. The first end member 71 is provided with a mounting hole 711 for cooperating with an external structure. The second snap-fit ​​member 41 is provided with a snap-fit ​​plate 411 for supporting contact with the bottom surface of the first end member 71. The second snap-fit ​​member 41 extends forward with a snap-fit ​​cone 412 to fit through the mounting hole 711, thereby achieving a fitting snap-fit ​​of the first end member 71.

[0046] The fourth clamping mechanism 5 includes a centrally located support bracket 51. The support bracket 51 has a support end face on its upper side, and a cylindrical positioning groove 52 is recessed on the upper side of the support end face. The second end member 72 is configured as a sleeve-shaped structure adapted to fit the outer side of the end of the pipe workpiece 7. During clamping, the pipe workpiece 7 is sleeved onto the sleeve-shaped second end member 72, and the second end member 72 is inserted into the positioning groove 52. Clamping drive mechanisms 53 are located on both sides of the support bracket 51. Each clamping drive mechanism 53 includes a clamping drive cylinder. The two clamping drive mechanisms 53 are connected to lateral clamping blocks 54. The two lateral clamping blocks 54 are positioned facing each other, corresponding to the upper position of the positioning groove 52. Arc-shaped clamping recesses are provided on the facing sides of the two lateral clamping blocks 54. Under drive clamping, the two lateral clamping blocks 54 position and clamp the periphery of the second end member 72.

[0047] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, modifications can still be made to the embodiments without departing from the implementation principle of the present utility model, and the corresponding modifications should also be considered within the protection scope of the present utility model.

Claims

1. A clamping welding system, characterized in that, include: A frame, on which a welding module and a detachable first clamping module and a second clamping module are provided; The first clamping module includes a first clamping mechanism for clamping one end of a pipe workpiece and a second clamping mechanism for clamping and positioning a first end member pre-welded to the other end of the pipe workpiece. The second clamping module includes a third clamping mechanism for clamping and positioning the first end member and a fourth clamping mechanism for clamping and positioning the second end member pre-welded to one end of the pipe workpiece. The welding module includes a first welding gun assembly and a second welding gun assembly disposed on the side corresponding to the second clamping mechanism or the fourth clamping mechanism.

2. The clamping welding system as described in claim 1, characterized in that, The first clamping mechanism includes a first clamping member for clamping one end of a pipe workpiece and a first clamping drive mechanism for driving the first clamping member to move closer to or away from the pipe workpiece; the second clamping mechanism includes a support groove adapted to be fitted with the first end member; the first clamping member is located above the support groove, and the clamping movement direction of the first clamping member has an angle with the opening orientation of the support groove.

3. The clamping welding system as described in claim 2, characterized in that, The first snap-fit ​​driving mechanism includes a vertically arranged positioning bracket, a limiting plate on the positioning bracket, and a limiting groove on the limiting plate; a movable rod is passed through the positioning bracket, one end of the movable rod is connected to the first snap-fit ​​component, and the other end of the movable rod is rotatably connected to a limiting ring in a positioning configuration; a limiting rod extends from the outer periphery of the limiting ring, and an elastic member connects the limiting ring and the positioning bracket.

4. The clamping welding system as described in claim 2, characterized in that, The second clamping mechanism includes a support base with a support groove on its upper side. When the first end member is installed in the support groove, the upper side of the first end member is flush with the upper end face of the support base. The support base has pressing clamping parts on both sides. Each pressing clamping part includes a pressing clamping block and a pressing drive device. The pressing drive device is adapted to drive the pressing clamping block to perform a pressing drive movement toward the position where the support groove intersects with the upper end face of the support base.

5. The clamping welding system as described in claim 1, characterized in that, The first clamping module includes a clamping bracket, and the first clamping mechanism and the second clamping mechanism are integrated on the clamping bracket. Handles are provided on both sides of the clamping bracket.

6. The clamping welding system as described in claim 1, characterized in that, The first welding torch assembly includes a first welding torch section, which is connected to a first welding drive mechanism. The first welding drive mechanism drives the first welding torch section to perform spot welding at the junction of the positioned pipe workpiece and the first end component. The first welding drive mechanism includes a vertically arranged welding bracket, which is rotatably connected to a welding drive cylinder. The drive end of the welding drive cylinder is connected to a welding torch clamping member for clamping and positioning the first welding torch section. A guide mechanism for driving guidance is connected between the welding drive cylinder and the welding torch clamping member.

7. The clamping welding system as described in claim 2, characterized in that, The third clamping mechanism includes a second snap-fit ​​driving mechanism, and the driving end of the second snap-fit ​​driving mechanism is provided with a second snap-fit ​​member, which is adapted to snap-fit ​​the first end component.

8. The clamping welding system as described in any one of claims 1 to 7, characterized in that, The fourth clamping mechanism includes a support bracket with a support end face, the upper side of which is recessed to form a positioning groove; clamping drive mechanisms are provided on both sides of the support bracket, the clamping drive mechanisms on both sides drive and connect lateral clamping blocks, the lateral clamping blocks on both sides are arranged facing each other and corresponding to the positioning groove, and the facing side of the lateral clamping blocks on both sides is provided with an arc-shaped clamping recess.

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