Multi-station welding positioner

Abstract

The utility model provides a multi-station welding positioner, which relates to the technical field of welding equipment, and comprises at least two working stations arranged in sequence, a clamping assembly and a righting assembly which correspond to each other are arranged in the working stations, the clamping assembly comprises a chuck which is supported to be rotatable, the chuck comprises a plurality of clamping jaws, and the clamping jaws are connected with the righting assembly. The clamping jaw can move in the radial direction of the chuck so as to clamp or release a workpiece, the righting assembly comprises a tip opposite to the chuck, and the tip is arranged to be capable of moving in the direction close to the chuck and retreating in the direction away from the chuck; and the switching assembly can be connected with the welding gun and is used for driving the welding gun to circularly weld the workpieces at the working positions according to a set program. By means of the technical scheme, the installation process and the welding operation process of the workpiece can be planned as a whole, and the welding work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a multi-station welding positioner. Background Art

[0002] Some welding positioners in the prior art have only one working position. After the operator installs the workpiece to be welded on the welding positioner, the welding positioner starts to weld the workpiece. The operator waits for the workpiece to be welded before removing it and replacing it with another workpiece to be welded. When the operator replaces the workpiece, the welding equipment is in an idle waiting state, resulting in low work efficiency. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides a multi-station welding positioner, comprising:

[0004] At least two working positions are arranged in sequence, and corresponding clamping components and straightening components are provided in the working positions.

[0005] The clamping assembly includes a chuck supported to be rotatable, the chuck includes a plurality of jaws, and the jaws can move along the radial direction of the chuck to clamp or release the workpiece.

[0006] The straightening assembly includes a top opposite to the chuck, and the top is configured to be able to move toward the chuck and retreat away from the chuck;

[0007] The switching assembly can be connected to the welding gun and is used to drive the welding gun to cyclically weld the workpieces at each working position according to a set program.

[0008] Further, the at least two working positions are arranged in sequence along a straight line direction. Alternatively, the at least two working positions are arranged in sequence along a circumferential direction.

[0009] Furthermore, the straightening assembly includes a telescopic cylinder and a telescopic rod slidably connected to the telescopic cylinder, and the telescopic rod is connected to the top.

[0010] Furthermore, there is also a support assembly, the support assembly comprising a vertically extending support rod and a fixing seat connected to the support rod in a height-adjustable manner;

[0011] The telescopic cylinder is connected to the fixing seat.

[0012] Furthermore, a fixing groove having the same extension direction as the supporting rod is provided on the outer contour of the supporting rod, and the fixing seat is connected to the fixing groove via a bolt assembly.

[0013] Furthermore, the switching assembly includes a sliding platform capable of reciprocating along the arrangement direction of the plurality of workstations and used to support the welding gun.

[0014] Furthermore, the multi-station welding positioner also includes a feed assembly connected to the sliding table, the feed assembly includes an inclined support table and a welding gun bracket slidably connected to the support table for fixing the welding gun, and the height of the support table on one side close to the chuck is lower than the height on the side away from the chuck.

[0015] Furthermore, the multi-station welding positioner further comprises a workbench, the upper side of which is provided with a slide rail extending in the same direction as the plurality of workstations; the slide table is slidably connected to the slide rail;

[0016] The switching assembly comprises a switching driving element for driving the sliding platform, the switching driving element is connected to the workbench, and a retractable part of the switching driving element is connected to the sliding platform.

[0017] Furthermore, an opaque partition is vertically arranged between two adjacent working positions.

[0018] According to the utility model, the multi-station welding positioner has multiple workstations, for example, two workstations, namely a first workstation and a second workstation. When the first workstation is in the process of welding operation, the operator can install or replace the workpiece at the second workstation. When the welding of the workpiece at the first workstation is completed, the welding gun is moved to the second workstation to weld the workpiece, and the operator then replaces the workpiece at the first workstation. This cycle is repeated, and the installation and welding can be coordinated to improve the welding work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a multi-station welding positioner according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Front view of

[0021] Figure 3 yes Figure 1 A top view of

[0022] Figure 4 yes Figure 1 Left view of .

[0023] Explanation of symbols

[0024] 1, 2, working unit;

[0025] S1, first working position; S2, second working position;

[0026] 10. Frame; 11. Workbench; 12. Legs; 13. Slide rails;

[0027] 20. Support assembly; 21. Support rod; 22. Fixing groove; 23. Fixing seat;

[0028] 30. straightening assembly; 31. top; 311. conical portion; 32. telescopic rod; 33. telescopic cylinder; 34. limiting member;

[0029] 40. Clamping assembly; 41. Chuck; 411. Claw; 42. Driving element; 43. First gear; 44. Second gear;

[0030] 50. Feed assembly; 51. Feed drive member; 511. Telescopic portion; 52. Support platform; 53. Sliding seat; 54. Welding gun bracket;

[0031] 60. Switching assembly; 61. Switching driving element; 62. Sliding platform; 63. Limiting member;

[0032] 70. Partition; 80. Welding gun. DETAILED DESCRIPTION

[0033] Below, in conjunction with the accompanying drawings, the preferred embodiments of the present utility model are described in detail.

[0034] Figure 1 This is a structural diagram of a multi-station welding positioner according to an embodiment of the utility model; Figure 2 yes Figure 1 Front view of Figure 3 yes Figure 1 A top view of Figure 4 yes Figure 1 Left view of . Figure 1 The forward, upward, and right directions in the following description are indicated by a coordinate system.

[0035]

Frame 10

[0036] The frame 10 is used to provide support for the working units 1 and 2 of the equipment. The frame 10 can be formed to include a workbench 11, and the upper surface of the workbench 11 is formed as a plane to form an installation space for each working unit and an operating space for each work station on the upper side of the workbench 11.

[0037] The lower side of the workbench 11 may be formed to include a plurality of vertically arranged legs 12, and the plurality of legs 12 may be connected by transverse ribs to form a stable frame. The lower side of the workbench 11 may also have a closed cabinet shape.

[0038] [First working position S1, second working position S2]

[0039] In this embodiment, a first working position S1 and a second working position S2 are formed on the upper side of the workbench 11, and the first working position S1 and the second working position S2 are arranged in the left-right direction. It should be noted that the number of working positions can also be 3, 4, 5, etc., and this patent does not specifically limit this.

[0040] When there are multiple workstations, they can be arranged in sequence along a straight line or along a circumference. When multiple workstations are arranged in sequence along a circumference, the welding gun 80 can be located inside or outside the circumference.

[0041] In this embodiment, a working unit 1 for clamping a workpiece is installed at the first working position S1, and a working unit 2 for clamping another workpiece is installed at the second working position S2.

[0042] The following is a detailed description taking the first working position S1 and the working unit 1 as an example. A supporting assembly 20 for installing the straightening assembly 30 is provided on the upper left side of the working table 11 .

[0043] [Support component 20]

[0044] The support assembly 20 may include, for example, a vertically extending support rod 21, and a fixing seat 23 is connected to the support rod 21 in a height-adjustable manner. For example, a vertically extending fixing groove 22 is provided on the outer contour of the support rod 21, and the fixing end of the fixing seat 23 may be connected to the fixing groove 22 by a bolt assembly, so that after the fixing seat 23 is adjusted to an appropriate height position, the two can be fixed by tightening the bolt assembly, and the bolt assembly can be loosened when necessary to adjust the height position of the fixing seat 23 again. Through the above settings, the multi-station welding machine can adapt to the welding requirements of workpieces of different heights.

[0045] [Rightening component 30]

[0046] The straightening assembly 30 is mounted on the free end of the fixing seat 23. The straightening assembly 30 includes a telescopic cylinder 33, which is connected to the fixing seat 23 and extends vertically. A telescopic rod 32 is slidably connected to the telescopic cylinder 33, and a top 31 is mounted on the lower end of the telescopic rod 32.

[0047] The telescopic rod 32 can drive the top 31 to move downward to press the workpiece, and move upward to release the workpiece. The conical portion 311 on the lower side of the top 31 abuts against the upper end of the workpiece, and can provide a fulcrum for centering and straightening the upper end of the workpiece.

[0048] The telescopic cylinder 33 may be, for example, a gas cylinder, and the telescopic rod 32 may be a piston rod of the gas cylinder accordingly. The telescopic cylinder 33 may also be a hydraulic cylinder, an electric cylinder, or the like.

[0049] When the telescopic cylinder 33 is a pneumatic cylinder, it preferably further includes a limiting member 34. The limiting member 34 can be, for example, a screw connected to the upper end of the piston rod, and a nut is installed on the screw to adjust the limit position of the extension of the piston rod.

[0050] [Clamping assembly 40]

[0051] The working unit 1 may further include a clamping assembly 40, which is used to clamp the lower end of the workpiece and provide a driving force for rotating the workpiece during welding.

[0052] In this embodiment, the clamping assembly 40 includes a chuck 41 rotatably disposed on the upper side of the workbench 11, the chuck 41 having a vertical central axis, and a plurality of jaws 411 evenly arranged around the central axis are disposed on the upper side of the chuck 41. The jaws 411 can fix the workpiece in a clamping manner, or fix the workpiece in a bracing manner. In the clamping fixing manner, the plurality of jaws 411 can simultaneously move inwards along the radial direction of the chuck 41 to clamp the workpiece, and simultaneously move outwards along the radial direction of the chuck 41 to release the workpiece. In the bracing fixing manner, the plurality of jaws 411 can simultaneously move outwards along the radial direction of the chuck 41 to brace the workpiece, and simultaneously move inwards along the radial direction of the chuck 41 to release the workpiece.

[0053] In order to drive the chuck 41 to rotate, the clamping assembly 40 of this embodiment further includes a driving element 42, which can be, for example, a motor. The driving element 42 is connected to the chuck in a transmission manner, for example, a first gear 43 can be installed at the output end of the driving element 42, and a second gear 44 meshing with the first gear 43 can be installed on the chuck 41, so that the chuck 41 can be driven to rotate by the driving element 42. In addition, the output end of the driving element 42 and the chuck 41 can also be connected by a transmission method such as a chain drive or a belt drive.

[0054] [Clamping of workpiece]

[0055] In welding operations, the workpiece generally includes multiple components. This patent takes two components (a first component and a second component) as an example for explanation. The first component may be, for example, a disc-shaped component (such as a flange), and the second component may be, for example, a rotary component (such as a steel pipe). During the clamping process, the first component is clamped by the claw 411 of the chuck 41, and the conical portion 311 of the tip 31 is used to support the upper end of the second component, so that the first component and the second component are abutted at the welding point.

[0056] In this embodiment, the center of the chuck 41 is opposite to the center of the top 41, so that the first component and the second component can be aligned and quickly clamped through simple operations, which is beneficial to maintaining the stability of the first and second components during welding, greatly improving the consistency of the welded workpiece.

[0057] [Feeding assembly 50]

[0058] The feeding assembly 50 is used to clamp the welding gun 80. Before welding begins, the welding gun 80 is pushed toward the working position to move forward close to the welding point; after welding is completed, the welding gun 80 is pulled backward to move backward.

[0059] Specifically, the feeding assembly 50 may include, for example, a support table 52. In this embodiment, the support table 52 is tilted, and the side with a lower height is closer to the front. The sliding seat 53 is slidably connected to the support table 52. For example, a guide rail may be installed on the support table 52, and a slider connected to the guide rail may be installed on the lower side of the sliding seat 53, but the present invention is not limited thereto.

[0060] The feed drive 51 is fixedly connected to the support platform 52, and the feed drive 51 includes a telescopic portion 511 that can extend forward and retract backward. The feed drive 51 can be, for example, a cylinder, a hydraulic cylinder, an electric cylinder, etc. When the feed drive 51 is a cylinder, the telescopic portion 511 is correspondingly a piston rod of the cylinder.

[0061] The welding gun bracket 54 is fixed on the sliding seat 53, and can move in the front-rear direction along with the sliding seat 53. The welding gun 80 is mounted on the welding gun bracket 54, so as to move forward and downward to approach the welding position of the workpiece, and move backward and upward away from the welding position.

[0062] [Switch component 60]

[0063] In this embodiment, the multi-station welding positioner has a first working position S1 and a second working position S2, and the switching assembly 60 is used to drive the feeding assembly 50 and the welding gun 80 to switch positions between different working positions.

[0064] Specifically, the switching assembly 60 includes a sliding platform 62, which can move in the left and right directions. For example, a slide rail 13 can be installed on the upper side of the workbench 11, and a slider connected to the slide rail 13 can be installed on the sliding platform 62 accordingly. The length of the slide rail 13 is substantially the same as the length of the workbench 11.

[0065] The switching assembly 60 further includes a switching drive element 61 for driving the above-mentioned sliding platform 62, and the switching drive element 61 can be, for example, a cylinder, a hydraulic cylinder, an electric cylinder, etc. The switching drive element 61 can have a retractable part, the switching drive element 61 is connected to the workbench, and its retractable part is connected to the sliding platform 62. When the switching drive element 61 is a cylinder, its retractable part is correspondingly a piston rod.

[0066] When the switching drive element is a cylinder, the switching drive element 61 may include a limit member 63, which may include a screw with a nut. The extension length of the piston rod of the cylinder can be limited by adjusting the position of the nut, so that the switching drive element 61 can push the welding gun 80 to accurately change its position between the first working position S1 and the second working position S2.

[0067] In addition, when there are more than three working positions, the above-mentioned switching drive element 61 can be, for example, an electric cylinder, and a sensor is set at each working position to detect the position of the welding gun 80, and then the welding gun 80 is controlled by control elements such as PLC to switch positions between the working positions according to the set program.

[0068] In addition, a partition 70 can be installed between two adjacent workstations. The partition 70 is vertically arranged to block strong light when welding at one workstation to avoid damage to the operator who is replacing the workpiece at another workstation. The partition 70 can be made of opaque materials such as steel plates.

[0069] The working principle of the multi-station welding positioner of one embodiment of the utility model is: Figure 1 to Figure 4 In the illustrated embodiment, the multi-station welding positioner has two workstations, namely a first workstation S1 and a second workstation S2. When the first workstation is in the process of welding operation, the operator can install or replace the workpiece at the second workstation S2. When the welding of the workpiece at the first workstation S1 is completed, the welding gun is moved to the second workstation to weld the workpiece, and the operator then replaces the workpiece at the first workstation. This cycle is repeated, and the installation and welding can be coordinated to improve the welding work efficiency.

[0070] The above is a detailed description of the multi-station welding positioner of the preferred embodiment of the utility model, but those skilled in the art can make various modifications, changes, combinations, etc. on this basis, and these modifications, changes, and combinations all fall within the protection scope of the claims of this application.

Claims

1. A multi-station welding positioner, characterized in that: include: At least two working positions are arranged in sequence, and corresponding clamping components and straightening components are provided in the working positions. The clamping assembly includes a chuck supported to be rotatable, the chuck includes a plurality of jaws, and the jaws can move along the radial direction of the chuck to clamp or release the workpiece. The straightening assembly includes a top opposite to the chuck, and the top is configured to be able to move toward the chuck and retreat away from the chuck; The switching assembly can be connected to the welding gun and is used to drive the welding gun to cyclically weld the workpieces at each of the working positions according to a set program.

2. The multi-station welding positioner according to claim 1, characterized in that: The at least two working positions are arranged sequentially along a straight line.

3. The multi-station welding positioner according to claim 1, characterized in that: The at least two working positions are arranged sequentially along the circumferential direction.

4. The multi-station welding positioner according to claim 1, characterized in that: The straightening assembly comprises a telescopic cylinder and a telescopic rod slidably connected to the telescopic cylinder, and the telescopic rod is connected to the top.

5. The multi-station welding positioner according to claim 4, characterized in that: A support assembly is also provided, the support assembly comprising a vertically extending support rod and a fixing seat connected to the support rod in a height-adjustable manner; The telescopic cylinder is connected to the fixing seat.

6. The multi-station welding positioner according to claim 5, characterized in that: A fixing groove having the same extension direction as the supporting rod is provided on the outer contour of the supporting rod, and the fixing seat is connected to the fixing groove via a bolt assembly.

7. The multi-station welding positioner according to claim 2, characterized in that: The switching assembly includes a sliding platform capable of reciprocating along the arrangement direction of the plurality of workstations and used to support the welding gun.

8. The multi-station welding positioner according to claim 7, characterized in that: The multi-station welding positioner also includes a feed assembly connected to the sliding table, the feed assembly includes an inclined support table and a welding gun bracket slidably connected to the support table for fixing the welding gun, and the height of the support table close to the chuck is lower than the height of the side away from the chuck.

9. The multi-station welding positioner according to claim 7, characterized in that: The multi-station welding positioner also includes a workbench, and a slide rail extending in the same direction as the plurality of workstations is provided on the upper side of the workbench; the slide table is slidably connected to the slide rail; The switching assembly comprises a switching driving element for driving the sliding platform, the switching driving element is connected to the workbench, and a retractable part of the switching driving element is connected to the sliding platform.

10. The multi-station welding positioner according to any one of claims 1 to 9, characterized in that: An opaque partition is vertically arranged between two adjacent working positions.

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