Equipment for spin welding

Abstract

The utility model discloses equipment for spin welding, which comprises a portal frame, the portal frame is of a door-shaped structure, a positioning structure is arranged on a cross beam of the portal frame, the positioning structure directly faces a clamping structure at the bottom of the portal frame, and a pipe fitting and a plate fitting to be welded are clamped on the clamping structure. A rotating ejector pin in the positioning structure is concentric with a pipe fitting and a plate clamped in the clamping structure, the pipe fitting and the plate are concentric in the welding process through clamping of the radial clamping assembly and the axial clamping assembly and positioning of the rotating ejector pin, and the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to welding equipment tooling, in particular to a device used for rotary welding. Background Art

[0002] When welding equipment with a tube-sheet structure, it is necessary to ensure that the through holes on the tube and the plate are concentric, and that the relative position between the tube and the plate does not change during the welding process, to prevent uneven weld appearance and poor welding quality due to non-concentricity during the welding process. Therefore, in order to solve this problem, the present application proposes a solution. Summary of the Invention

[0003] Purpose of the utility model: The purpose of the utility model is to provide a device for rotary welding, which can ensure that the pipe and plate to be welded remain concentric during the welding process and improve the welding efficiency.

[0004] Technical solution: The utility model is a device for rotary welding, including a gantry, which has a door-shaped structure. A positioning structure is provided on the crossbeam of the gantry, and the positioning structure is opposite to the clamping structure at the bottom of the gantry. The clamping structure clamps the pipes and plates to be welded, and the rotating ejector in the positioning structure is concentric with the pipes and plates clamped in the clamping structure.

[0005] Preferably, the positioning structure includes a connecting piece, a cylinder and a rotating ejector. The connecting piece is fixedly arranged on the crossbeam of the gantry, and the cylinder is arranged on the upper end surface of the connecting piece. The output end of the cylinder passes through the connecting piece and is connected to the rotating ejector. The needle head of the rotating ejector faces the positioning structure.

[0006] The rotating ejector pin moves downwards driven by the cylinder to position the pipe fittings and prevent them from shifting during the welding process.

[0007] Preferably, the clamping structure includes a base, a rotary chuck, a radial clamping assembly, an axial clamping assembly and a carrying pallet. The base is arranged at the bottom of the gantry, and a rotary chuck is fixedly arranged on the base. The upper end face of the rotary chuck is provided with a carrying pallet, and the carrying pallet is provided with pipes and plates to be welded. The radial clamping assembly is arranged at the outer periphery of the rotary chuck to clamp the carrying pallet, and the axial clamping assembly is arranged at the outer periphery of the rotary chuck to clamp the plate to be positioned on the carrying pallet.

[0008] Preferably, the base includes a cylinder and a mounting seat, the mounting seat is arranged on the ground at the bottom of the gantry, facing the positioning structure, and the output end of the cylinder extends into the mounting seat and is connected to the input shaft of the rotary chuck.

[0009] The cylinder in the base provides power for the rotation of the rotary chuck, and the rotary chuck rotates under the drive of the cylinder.

[0010] Preferably, the radial clamping assembly includes a radial cylinder and a radial positioning block. The radial cylinder is fixed on the outer periphery of the rotary chuck. A radial positioning block is provided on the output end of the radial cylinder. The radial positioning block is radially arranged along the upper end face of the rotary chuck, with the end face facing the outer wall of the supporting tray.

[0011] Driven by the radial cylinder, the radial positioning block completes the clamping of the carrying tray, realizes the positioning of the carrying tray, and realizes the positioning of the plate on the carrying tray.

[0012] Preferably, the axial clamping assembly includes an axial cylinder and an axial pressure block. The axial cylinder is fixed on the outer periphery of the rotary chuck, and an axial pressure block is provided on the output end of the axial cylinder. One end of the axial pressure block is connected to the output end of the axial cylinder, and the other end is located above the supporting tray.

[0013] Driven by the axial cylinder, the axial pressing block presses the plate on the carrying tray to ensure that the plate will not move relative to each other during the welding process.

[0014] Preferably, the side of the axial pressing block located above the carrying tray is in an arc-shaped structure, and the center of the arc is concentric with the carrying tray.

[0015] Preferably, there are no less than two axial clamping assemblies and no less than two radial clamping assemblies.

[0016] The cooperation of multiple axial clamping assemblies and radial clamping assemblies completes the positioning of the plate.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0018] (1) The present application realizes the concentricity of the pipe and the plate during the welding process by clamping the radial clamping assembly and the axial clamping assembly and positioning the rotating ejector pin;

[0019] (2) The present application automatically realizes the rotation of the welding point during the welding process, and can be applied to different occasions of welding gun rotation or weldment rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Figure 2 It is a three-dimensional structural diagram of the gantry and positioning structure of the utility model.

[0022] Figure 3 It is a three-dimensional schematic diagram of the clamping structure of the utility model.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping structure in the utility model.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the base in this utility model.

[0025] Among them: 100, gantry; 200, positioning structure; 300, clamping structure; 400, pipe fitting; 500, plate; 201, connecting piece; 202, cylinder 1; 203, rotary ejector; 301, rotary chuck; 302, carrying tray; 310, base; 311, cylinder 2; 312, mounting seat; 320, radial clamping assembly; 321, radial cylinder; 322, radial positioning block; 330, axial clamping assembly; 331, axial cylinder; 332, axial pressure block. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0027] See attached Figures 1 to 5 FIG, the equipment for rotary welding shown in the utility model includes a gantry 100, the gantry 100 is a door-shaped structure, a positioning structure 200 is provided on the crossbeam of the gantry 100, the positioning structure 200 is opposite to the clamping structure 300 at the bottom of the gantry 100, and the clamping structure 300 clamps the pipe 400 and the plate 500 to be welded.

[0028] In this embodiment, the positioning structure 200 includes a connecting piece 201, a cylinder 202 and a rotating ejector 203, wherein the connecting piece 201 is fixedly set on the crossbeam of the gantry 100, and the cylinder 202 is set on the upper end surface of the connecting piece 201. The output end of the cylinder 202 passes through the connecting piece 201 and is connected to the rotating ejector 203. The needle head of the rotating ejector 203 is facing the pipe 400 and the plate 500 to be welded clamped in the positioning structure 300. The rotating ejector 203 moves downward under the drive of the cylinder 202, and can simultaneously position the pipe 400 to prevent the pipe 400 from displacement during the welding process.

[0029] In this embodiment, the clamping structure 300 includes a base 310, a rotary chuck 301, a radial clamping assembly 320, an axial clamping assembly 330 and a carrying tray 302. The base 310 is arranged at the bottom of the gantry 100, and the rotary chuck 301 is fixedly arranged on the base 310. The upper end surface of the rotary chuck 301 is provided with a carrying tray 302. The carrying tray 302 is provided with pipe fittings 400 and plates 500 to be welded, wherein the radial clamping assembly 320 is arranged on the outer periphery of the rotary chuck 301 to clamp the carrying tray 302, and the axial clamping assembly 330 is arranged on the outer periphery of the rotary chuck 301 to clamp the plate 500 to be positioned on the carrying tray 302.

[0030] In this embodiment, the base 310 includes a second cylinder 311 and a mounting seat 312. The mounting seat 312 is set on the ground at the bottom of the gantry 100, facing the positioning structure 200. The output end of the second cylinder 311 extends into the mounting seat 312 and is connected to the input shaft of the rotary chuck 301. The second cylinder 311 is set to provide power for the rotation of the rotary chuck 301, and the rotary chuck 301 rotates under the drive of the second cylinder 311.

[0031] In this embodiment, the radial clamping assembly 320 includes a radial cylinder 321 and a radial positioning block 322. The radial cylinder 321 is fixed on the outer periphery of the rotating chuck 301. A radial positioning block 322 is provided on the output end of the radial cylinder 321. The radial positioning block 322 is radially arranged along the upper end face of the rotating chuck 301, with the end face facing the outer wall of the carrying tray 302. The radial positioning block 322 completes the clamping of the carrying tray 302 under the drive of the radial cylinder 321, realizes the positioning of the carrying tray 302, and realizes the positioning of the plate 500 on the carrying tray 302.

[0032] In this embodiment, the axial clamping assembly 330 includes an axial cylinder 331 and an axial pressure block 332. The axial cylinder 331 is fixed on the outer periphery of the rotary chuck 301. An axial pressure block 332 is provided on the output end of the axial cylinder 331. One end of the axial pressure block 332 is connected to the output end of the axial cylinder 331, and the other end is located above the supporting tray 302. The axial pressure block 332 is in an arc-shaped structure on one side above the supporting tray 302. The center of the arc is concentric with the supporting tray 302. The axial pressure block 332 is driven by the axial cylinder 331 to press the plate 500 on the supporting tray 302 to ensure that the plate 500 does not undergo relative displacement during the welding process.

[0033] In this embodiment, three radial clamping assemblies 320 and two axial clamping assemblies 330 are provided to cooperate with each other to complete the positioning of the plate.

[0034] When the present application is in operation, the operator places the carrying tray 302 on the rotary chuck 301, adjusts the position of the carrying tray 302, ensures that the carrying tray 302 is concentric with the rotary ejector 203 in the positioning structure 200, and uses the radial clamping assembly 320 provided on the outer periphery of the rotary chuck 301 to position the carrying tray 302, and then places the plate 500 to be welded in the center of the carrying tray 302, ensures that the plate 500 is concentric with the rotary ejector 203, and then uses the axial clamping assembly 330 to position and press the plate 500, and finally places the pipe 400 to be welded at the welding point on the plate 500. At this time, the rotary ejector 203 extends toward the pipe 400 under the drive of the cylinder 202, and presses the pipe 400 and the plate 500, and then starts welding. During the welding process, the rotary chuck 301 and the rotary ejector 203 rotate synchronously until the welding is completed.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A device for spin welding, comprising a gantry, characterized in that: The gantry is a door-shaped structure, and a positioning structure is provided on the crossbeam of the gantry. The positioning structure is opposite to the clamping structure at the bottom of the gantry. The clamping structure clamps the pipes and plates to be welded. The rotating ejector in the positioning structure is concentric with the pipes and plates clamped in the clamping structure. The positioning structure includes a connecting piece, a cylinder and a rotating ejector. The connecting piece is fixedly arranged on the crossbeam of the gantry. The cylinder is arranged on the upper end surface of the connecting piece. The output end of the cylinder passes through the connecting piece and is connected to the rotating ejector. The needle head of the rotating ejector faces the positioning structure. The clamping structure includes a base, a rotary chuck, a radial clamping assembly, an axial clamping assembly and a carrying pallet. The base is arranged at the bottom of the gantry, and the rotary chuck is fixedly arranged on the base. The upper end surface of the rotary chuck is provided with a carrying pallet, and the carrying pallet is provided with pipes and plates to be welded. The radial clamping assembly is arranged at the outer periphery of the rotary chuck to clamp the carrying pallet. The axial clamping assembly is arranged at the outer periphery of the rotary chuck to clamp the plate to be positioned on the carrying pallet.

2. The device for spin welding according to claim 1, characterized in that: The base includes a cylinder and a mounting seat. The mounting seat is arranged on the ground at the bottom of the gantry and faces the positioning structure. The output end of the cylinder extends into the mounting seat and is connected to the input shaft of the rotary chuck.

3. The device for spin welding according to claim 1, characterized in that: The radial clamping assembly includes a radial cylinder and a radial positioning block. The radial cylinder is fixed on the outer periphery of the rotary chuck. A radial positioning block is provided on the output end of the radial cylinder. The radial positioning block is arranged radially along the upper end face of the rotary chuck, with the end face facing the outer wall of the carrying tray.

4. The device for spin welding according to claim 1, characterized in that: The axial clamping assembly includes an axial cylinder and an axial pressure block. The axial cylinder is fixed on the outer periphery of the rotary chuck. An axial pressure block is provided on the output end of the axial cylinder. One end of the axial pressure block is connected to the output end of the axial cylinder, and the other end is located above the supporting tray.

5. The device for spin welding according to claim 4, characterized in that: The side of the axial pressing block located above the carrying tray is in an arc-shaped structure, and the center of the arc is concentric with the carrying tray.

6. The device for spin welding according to claim 1, characterized in that: There are no less than two axial clamping assemblies and no less than two radial clamping assemblies.

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