Combined rotary clamping mechanism for welding

Abstract

The utility model relates to a combined rotary clamping mechanism for welding, which comprises a base, two ends of the base are parallel, a first rotating shaft and a guide sleeve are respectively arranged at two ends of the base, a second rotating shaft is slidably connected onto the guide sleeve, the first rotating shaft is rotatably connected with the base, and the guide sleeve is rotatably connected with the base. A first fixing seat is detachably connected to the first rotating shaft, a sliding table air cylinder is fixedly connected to the position, located on one side of the second rotating shaft, of the base, a push fork is fixedly connected to a sliding table of the sliding table air cylinder, a second fixing seat and a disc seat are arranged at the two ends of the second rotating shaft respectively, and a spring is arranged between the second fixing seat and the base. The welding fixture has the advantages that the first fixing seat and the second fixing seat can be quickly disassembled, assembled and replaced according to welding positioning requirements, and diversified welding requirements of workpieces of different specifications can be met; and an elastic clamping structure is adopted, so that positioning and clamping of the thin-wall barrel workpieces can be adapted, and deformation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture field, concretely relates to a combined rotary clamping mechanism for welding. BACKGROUND

[0002] For the welding processing of shaft parts, cylinder parts, rod parts and disc parts, the single bodies preassembled together need to be placed in the welding fixture for positioning and clamping, and then the laser welding head outside is rotated to perform welding processing.

[0003] When the existing welding fixture positions the above-mentioned parts, rigid clamping can easily cause deformation of the thin-walled parts, affecting the quality of the weld. Moreover, the positioning seat and the clamping plate of the existing welding fixture are inconvenient to disassemble and assemble, and therefore a combined rotary clamping mechanism for welding is needed. SUMMARY

[0004] The utility model aims to provide a combined rotary clamping mechanism for welding, which can adapt to the diversified welding requirements of different specifications of workpieces, quickly disassemble and assemble the first fixing seat and the second fixing seat according to the welding positioning requirements, and adopt an elastic clamping structure to adapt to the positioning and clamping of thin-walled cylinder workpieces without causing deformation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a combined rotary clamping mechanism for welding, comprising a base, the two ends of the base are parallel, a first rotating shaft and a guide sleeve are arranged at the two ends of the base respectively, a second rotating shaft is slidably connected to the guide sleeve, the first rotating shaft is rotatably connected to the base, the guide sleeve is rotatably connected to the base, a first fixing seat is detachably connected to the first rotating shaft, a slide table cylinder is fixedly connected to one side of the base on the side of the second rotating shaft, a push fork is fixedly connected to the slide table of the slide table cylinder, a second fixing seat and a disc seat are arranged at the two ends of the second rotating shaft respectively, and a spring is arranged between the second fixing seat and the base.

[0006] Further, the first rotating shaft and the second rotating shaft are coaxially arranged, and the first fixing seat and the second fixing seat are each provided with a positioning hole.

[0007] Further, the push fork is located between the disc seat and the base, the disc seat is in the shape of a stepped column, and the maximum diameter of the disc seat is greater than the width of the gap of the push fork.

[0008] Further, screw holes are formed in the first fixing seat and the second fixing seat, the first fixing seat is fixedly connected to the first rotating shaft by a screw, and the second fixing seat is fixedly connected to the second rotating shaft.

[0009] Further, a reinforcing rib is arranged on one side of the first fixing seat close to the first rotating shaft and on one side of the second fixing seat close to the second rotating shaft.

[0010] Further, the spring is sleeved on the second rotating shaft.

[0011] The beneficial effects of the utility model are that the first fixing seat and the second fixing seat can be quickly disassembled and replaced according to the welding positioning requirement, and the welding requirement of diversified workpieces of different specifications can be adapted.

[0012] The elastic clamping structure can adapt to the positioning and clamping of the thin-walled cylindrical workpiece and will not cause deformation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the first perspective schematic view of the utility model.

[0014] Figure 2 It is the second perspective schematic view of the utility model.

[0015] Figure 3 It is the third perspective schematic view of the utility model.

[0016] Figure 4 It is the sectional view of the utility model.

[0017] In the drawing: 1, base; 2, first rotating shaft; 3, second rotating shaft; 4, first fixing seat; 5, second fixing seat; 6, slide table air cylinder; 601, push fork; 7, disc seat; 8, spring; 9, guide sleeve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0019] REFERENCE Figures 1-4 The utility model discloses a combined rotary clamping mechanism for welding, which comprises a base 1, the two ends of the base 1 are parallel, the two ends of the base 1 are respectively provided with a first rotating shaft 2 and a guide sleeve 9, a second rotating shaft 3 is slidably connected to the guide sleeve 9, the first rotating shaft 2 is rotatably connected to the base 1, the guide sleeve 9 is rotatably connected to the base 1, a first fixing seat 4 is detachably connected to the first rotating shaft 2, a slide table air cylinder 6 is fixedly connected to one side of the base 1 and located at the second rotating shaft 3, a push fork 601 is fixedly connected to the slide table of the slide table air cylinder 6, the push fork 601 is used for pushing a disc seat 7 to make the second rotating shaft 3 slide away from the first fixing seat 4, the two ends of the second rotating shaft 3 are respectively provided with a second fixing seat 5 and the disc seat 7, a spring 8 is arranged between the second fixing seat 5 and the base 1, the spring 8 is used for resetting the second rotating shaft 3 and exerting clamping force on the workpiece to be processed.

[0020] The first rotating shaft 2 and the second rotating shaft 3 are coaxially arranged, and positioning holes formed in the first fixing seat 4 and the second fixing seat 5 are used for positioning and placing a workpiece; when the workpiece is placed, firstly, the push fork 601 is driven to slide by the slide cylinder 6, the push fork 601 drives the disc seat 7 and the second rotating shaft 3 to move away from the first fixing seat 4, at this time, one end of the workpiece is placed along the positioning hole on the first fixing seat 4 and kept in a positioning state, then the slide cylinder 6 is reset, the second rotating shaft 3 is reset under the action of the spring 8, and the positioning hole of the second fixing seat 5 positions and clamps the other end of the workpiece.

[0021] The push fork 601 is located between the disc seat 7 and the base 1, the disc seat 7 is in a stepped columnar shape, the maximum diameter of the disc seat 7 is greater than the width of the gap of the push fork 601, and the small-diameter end of the disc seat 7 is located in the gap of the push fork 601; when material is placed, the push fork 601 drives the second rotating shaft 3 to slide by driving the large-diameter end of the disc seat 7.

[0022] Screw holes are formed in the first fixing seat 4 and the second fixing seat 5, the end of the first rotating shaft 2 and the end of the second rotating shaft are respectively provided with hole grooves for positioning and mounting the first fixing seat 4 and the second fixing seat 5, the first fixing seat 4 is fixedly connected with the first rotating shaft 2 through screws, and the second fixing seat 5 is fixedly connected with the second rotating shaft 3.

[0023] The first fixing seat 4 and the second fixing seat 5 are provided with reinforcing ribs on one side close to the first rotating shaft 2 and one side close to the second rotating shaft 3 respectively, so that the first fixing seat 4 and the second fixing seat 5 are prevented from being deformed.

[0024] The spring 8 is sleeved on the second rotating shaft 3, so that the spring 8 is prevented from being dislocated during compression and reset.

[0025] Working principle: when the utility model is used, the first rotating shaft 2 is driven to rotate by an external rotating mechanism; when a workpiece is positioned and placed, the push fork 601 is driven to slide by the slide cylinder 6, the push fork 601 drives the disc seat 7 and the second rotating shaft 3 to move away from the first fixing seat 4, at this time, one end of the workpiece is placed along the positioning hole on the first fixing seat 4 and kept in a positioning state, then the slide cylinder 6 is reset, the second rotating shaft 3 is reset under the action of the spring 8, and the positioning hole of the second fixing seat 5 positions and clamps the other end of the workpiece;

[0026] When welding is carried out, the external rotating mechanism drives the first rotating shaft 2 to rotate, and the workpiece, the second rotating shaft 3 and the guide sleeve 9 rotate with the first rotating shaft 2; in the process of rotating the workpiece, an external laser welding head welds the joint between the two monomers in the workpiece.

[0027] The above examples are used to further illustrate the present application, but the present application is not limited to these specific embodiments. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application should be understood as within the protection scope of the present application.

Claims

1. A combined rotary clamping mechanism for welding, characterized in that: Includes a base (1), with parallel ends. A first rotating shaft (2) and a guide sleeve (9) are respectively provided at the ends of the base (1). A second rotating shaft (3) is slidably connected to the guide sleeve (9). The first rotating shaft (2) is rotatably connected to the base (1). The guide sleeve (9) is rotatably connected to the base (1). A first fixed seat (4) is detachably connected to the first rotating shaft (2). A slide cylinder (6) is fixedly connected to one side of the second rotating shaft (3) on the base (1). A push fork (601) is fixedly connected to the slide of the slide cylinder (6). A second fixed seat (5) and a plate seat (7) are respectively provided at the ends of the second rotating shaft (3). A spring (8) is provided between the second fixed seat (5) and the base (1).

2. The combined rotary clamping mechanism for welding according to claim 1, characterized in that: The first rotating shaft (2) and the second rotating shaft (3) are coaxially arranged, and the first fixed seat (4) and the second fixed seat (5) are both provided with positioning holes.

3. The combined rotary clamping mechanism for welding according to claim 1, characterized in that: The push fork (601) is located between the disc base (7) and the base (1). The disc base (7) is in the shape of a stepped column, and the maximum diameter of the disc base (7) is greater than the width of the notch of the push fork (601).

4. The combined rotary clamping mechanism for welding according to claim 1, characterized in that: Both the first fixed seat (4) and the second fixed seat (5) have screw holes. The first fixed seat (4) is fixedly connected to the first rotating shaft (2) by screws, and the second fixed seat (5) is fixedly connected to the second rotating shaft (3).

5. The combined rotary clamping mechanism for welding according to claim 4, characterized in that: Reinforcing ribs are provided on the side of the first fixed seat (4) near the first rotating shaft (2) and on the side of the second fixed seat (5) near the second rotating shaft (3).

6. The combined rotary clamping mechanism for welding according to claim 1, characterized in that: The spring (8) is mounted on the second rotating shaft (3).

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