Swing arm mechanism of robot stud welding gun

Abstract

The utility model relates to the technical field of robot welding, and provides a swing arm mechanism of a robot stud welding gun, the output end of a power mechanism is rotatably connected with a connecting arm so as to drive the connecting arm to rotate around a rotating shaft, the connecting arm is connected with a swing arm, and the connecting arm and the swing arm are vertically arranged, so that the swing arm can swing in a horizontal state and a vertical state; a welding gun is arranged on the swing arm so as to adapt to welding of multiple postures; and the first limiting mechanism and the second limiting mechanism are arranged to limit the horizontal state and the vertical state correspondingly, and it is guaranteed that the posture position is accurate and stable. The first limiting mechanism is matched and attached to the second limiting block of the supporting base through the first limiting block of the connecting arm for limiting, and the second limiting mechanism is matched and attached to the third limiting block of the mounting frame through the second limiting block of the connecting arm for limiting. A first buffer and a second buffer are further arranged to buffer the connecting arm through conversion of the vertical state and the horizontal state, and it is guaranteed that the connecting arm is not damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to robot welding technical field especially relates to a kind of swing arm mechanism of robot stud welding gun. BACKGROUND

[0002] Industrial automation robot welding industry, in the process of body parts welding, considering cost and site and other elements, generally a stud welding gun welds multiple vehicle types and welding postures, traditional stud welding gun only has one welding posture, leading to poor welding posture, large site occupation, multiple vehicle types are difficult to import, causing great efficiency loss and cost loss.Screw stud welding gun is required to have multi-posture switching function, so it is necessary to configure stud welding gun swing arm mechanism in automatic line to quickly switch welding gun posture. SUMMARY

[0003] Therefore, the utility model aims at providing a kind of swing arm mechanism of robot stud welding gun to solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides a kind of swing arm mechanism of robot stud welding gun, including column, the top of column is provided with support seat, support seat top is fixed with swing arm support, swing arm support left part is horizontally, right part is upwards bent, the top left end of swing arm support is rotatably connected with the one end of connecting arm through pivot, the one end of connecting arm is fixedly connected with the one end of swing arm away from pivot, and connecting arm and swing arm are vertically arranged;The one end away from connecting arm of swing arm is provided with welding gun;The side away from welding gun of connecting arm is rotatably connected with power mechanism, and the both sides of connecting arm are respectively provided with limit mechanism one and limit mechanism two to limit the position of connecting arm.

[0005] Preferably, the limit mechanism one includes limit block one on the side of connecting arm close to welding gun, and limit block two is arranged on the side of support seat top close to pivot, and limit block one and limit block two are matched in shape and can be attached together.

[0006] Preferably, the limit mechanism two includes limit block three on the side of connecting arm away from welding gun, and mounting bracket is arranged on the top of horizontal part of swing arm support, and limit block four is arranged on the top end of mounting bracket close to connecting arm side, and limit block three and limit block four are matched in shape and can be attached together.

[0007] Preferably, the power mechanism includes cylinder rotatably connected to the bent part of swing arm support, and the output end of cylinder is rotatably connected with the side of connecting arm away from welding gun through mounting bracket.

[0008] Preferably, the bottom end of mounting bracket close to connecting arm side is provided with buffer one.

[0009] Preferably, the side of support seat top close to limit block two is provided with buffer two.

[0010] Preferably, the column bottom is fixed with a mounting plate, and mounting holes are distributed on the surface of the mounting plate for adjusting the horizontal position of the swing arm mechanism.

[0011] The utility model discloses the output end and connecting arm rotation connection of power mechanism, thereby drive connecting arm rotation around pivot, connecting arm connects swing arm and both are perpendicular setting, swing arm can swing in horizontal and vertical two states like this, set the welding torch on swing arm, like this, adapt to multiple postures welding, and set limit mechanism no. 1 and limit mechanism no. 2 are positioned respectively to horizontal and vertical state, guarantee the posture position accurate and stable. Limit mechanism no. 1 is matched and pasted together through the limiting block no. 1 of connecting arm and the limiting block no. 2 of support seat and is positioned, and limit mechanism no. 2 is matched and pasted together through the limiting block no. 2 of connecting arm and the limiting block no. 3 of mounting frame and is positioned. Power mechanism is through setting the cylinder of swing arm support rotation connection, and the output end of cylinder is rotation connection with connecting arm, thereby realizing connecting arm rotation around pivot. Still set buffer no. 1 and buffer no. 2 are respectively positioned to the conversion of vertical and horizontal state and are connected to the arm buffer, guaranteeing that connecting arm is not reduced damage. And the column bottom is through the mounting plate that is distributed with mounting hole and installs swing arm mechanism whole to machine, can adjust horizontal position and install. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0013] Fig. 1 It is the schematic diagram of the utility model;

[0014] Fig. 2 It is the schematic diagram of two welding positions of the utility model.

[0015] Marked as in the drawing:

[0016] 1-column, 2-support seat, 3-swing arm support, 4-pivot, 5-connecting arm, 6-swing arm, 7-welding torch, 8-limiting block no. 1, 9-limiting block no. 2, 10-limiting block no. 3, 11-mounting frame, 12-limiting block no. 3, 13-cylinder, 14-buffer no. 1, 15-buffer no. 2, 16-mounting plate, 17-mounting hole. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will be further detailed with specific embodiment.

[0018] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as their common meanings to those having ordinary skills in the field of the present application. The terms "first", "second" and similar terms used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "including", "containing" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0019] As shown in Figs. 1-2 A swing arm mechanism of a robot stud welding gun, comprising a stand column 1, a mounting plate 16 is fixed at the bottom of the stand column 1, and mounting holes 17 are distributed on the surface of the mounting plate 16 for adjusting the horizontal position of the swing arm mechanism; a support seat 2 is arranged at the top of the stand column 1, a swing arm support 3 is fixed at the top of the support seat 2, the left part of the swing arm support 3 is horizontally bent, the right part is upwardly bent, one end of a connecting arm 5 is rotatably connected to the top left end of the swing arm support 3 through a rotating shaft 4, one end of a swing arm 6 is fixedly connected to the end of the connecting arm 5 away from the rotating shaft 4, and the connecting arm 5 and the swing arm 6 are arranged in a perpendicular manner; a welding gun 7 is arranged at the end of the swing arm 6 away from the connecting arm 5; a power mechanism is rotatably connected to the side of the connecting arm 5 away from the welding gun 7, and a limiting mechanism one and a limiting mechanism two are arranged on both sides of the connecting arm 5 to limit the position of the connecting arm 5. The output end of the power mechanism is rotatably connected to the connecting arm 5, thereby driving the connecting arm 5 to rotate around the rotating shaft 4, the connecting arm 5 is connected to the swing arm 6 and arranged in a perpendicular manner, so that the swing arm can swing in horizontal and vertical states, the welding gun 7 is arranged on the swing arm, thereby adapting to multiple welding postures; and the limiting mechanism one and the limiting mechanism two are arranged to limit the horizontal and vertical states respectively, thereby ensuring accurate and stable posture position.

[0020] The limiting mechanism one includes a limiting block one 8 arranged on the connecting arm 5 near the welding gun 7, and a limiting block two 9 arranged on the top of the support base 2 near the rotating shaft 4, and the limiting block one 8 and the limiting block two 9 are matched and arranged to be attached together. The limiting mechanism two includes a limiting block three 10 arranged on the connecting arm 5 away from the welding gun 7, and a mounting frame 11 arranged on the top of the horizontal part of the swing arm support 3, and the limiting block four 12 is arranged on the top end of the mounting frame 11 near the connecting arm 5, and the limiting block three 10 and the limiting block four 12 are matched and arranged to be attached together. The limiting mechanism one is matched and attached together by the limiting block one 8 of the connecting arm 5 and the limiting block two 9 of the support base 2 for limiting, and the limiting mechanism two is matched and attached together by the limiting block three 10 of the connecting arm 5 and the limiting block four 12 of the mounting frame 11 for limiting.

[0021] The power mechanism includes a cylinder 13 rotatably connected to the bending part of the swing arm support 3, and the output end of the cylinder 13 penetrates the mounting frame 11 and is rotatably connected to the connecting arm 5 away from the welding gun 7. The power mechanism is rotatably connected to the swing arm support 3 by arranging the cylinder 13, and the output end of the cylinder 13 is rotatably connected to the connecting arm 5, so that the connecting arm 5 rotates around the rotating shaft 4.

[0022] The mounting frame 11 is provided with a buffer one 14 on the bottom end near the connecting arm 5. The support base 2 is provided with a buffer two 15 on the top near the limiting block two 9. The buffer one 14 and the buffer two 15 are arranged to buffer the connecting arm 5 during the conversion between the vertical and horizontal states, so as to ensure that the connecting arm 5 is not damaged.

[0023] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the present application to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A swing arm mechanism of a robot stud welding gun comprising a column (1), characterized in that, The top of the column (1) is provided with a support seat (2), the top of the support seat (2) is fixedly provided with a swing arm support (3), the left part of the swing arm support (3) is horizontally bent, the right part is upwardly bent, one end of the swing arm support (3) is rotatably connected with one end of a connecting arm (5) through a rotating shaft (4), one end of the connecting arm (5) away from the rotating shaft (4) is fixedly connected with one end of a swing arm (6), the connecting arm (5) and the swing arm (6) are vertically arranged; the swing arm (6) is provided with a welding gun (7) at the end away from the connecting arm (5); the connecting arm (5) is rotatably connected with a power mechanism on the side away from the welding gun (7), and the connecting arm (5) is provided with a limiting mechanism one and a limiting mechanism two on the two sides for position limiting.

2. The swing arm mechanism of a robotic stud welding gun according to claim 1, wherein, The limiting mechanism one comprises a limiting block one (8) arranged on the side of the connecting arm (5) close to the welding gun (7), and the top of the support seat (2) is provided with a limiting block two (9) on the side close to the rotating shaft (4), and the limiting block one (8) and the limiting block two (9) are matched in shape and can be attached together.

3. The swing arm mechanism of a robotic stud welding gun according to claim 2, wherein, The limiting mechanism two comprises a limiting block three (10) arranged on the side of the connecting arm (5) away from the welding gun (7), and the top of the horizontal part of the swing arm support (3) is provided with a mounting bracket (11), the top end of the mounting bracket (11) is provided with a limiting block four (12) on the side close to the connecting arm (5), and the limiting block three (10) and the limiting block four (12) are matched in shape and can be attached together.

4. The swing arm mechanism of a robotic stud welding gun according to claim 3, wherein, The power mechanism comprises a cylinder (13) rotatably connected with the bent part of the swing arm support (3), and the output end of the cylinder (13) is rotatably connected with the connecting arm (5) on the side away from the welding gun (7) through the mounting bracket (11).

5. The swing arm mechanism of a robotic stud welding gun of claim 3, wherein, The mounting bracket (11) is provided with a buffer one (14) on the bottom end of the side close to the connecting arm (5).

6. The swing arm mechanism of a robotic stud welding gun of claim 2, wherein, The top of the support seat (2) is provided with a buffer two (15) on the side close to the limiting block two (9).

7. The swing arm mechanism of a robotic stud welding gun of claim 1, wherein, The bottom of the column (1) is fixedly provided with a mounting plate (16), and the surface of the mounting plate (16) is provided with mounting holes (17) for adjusting the horizontal position of the swing arm mechanism.

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