Positioning and clamping linkage mechanism of welding fixture

Abstract

The invention relates to a welding fixture positioning and clamping linkage mechanism, which belongs to the technical field of welding, and comprises a welding table, a first moving plate is arranged on the upper surface of the welding table, a first placing groove is formed in the upper end of the first moving plate in a penetrating manner, and a second moving plate is arranged right above the first moving plate; a second placement groove is formed in the lower end of the second moving plate in a penetrating mode, a first sliding groove is formed in the first moving plate along the inner bottom wall of the first placement groove, a second sliding groove is formed in the second moving plate along the inner bottom wall of the second placement groove, and a first arc-shaped clamping plate is slidably connected to the first sliding groove of the first moving plate; the second moving plate is slidably connected with a second arc-shaped clamping plate at the second sliding groove, the welding table is provided with a moving assembly used for driving the first moving plate and the second moving plate to move towards each other or away from each other, and the first moving plate and the second moving plate are provided with rotating assemblies used for driving the first arc-shaped clamping plate and the second arc-shaped clamping plate to rotate. The pipe fitting welding device has the effect of improving the pipe fitting welding work efficiency.

Claims

1. A welding fixture positioning and clamping linkage mechanism, comprising a welding table (1), characterized in that: A first movable plate (2) is arranged on the upper surface of the welding table (1); a first placement groove (21) is penetrated through the upper end of the first movable plate (2); the first placement groove (21) penetrates the upper surface of the first movable plate (2); a second movable plate (3) is arranged directly above the first movable plate (2); a second placement groove (31) is penetrated through the lower end of the second movable plate (3); the second placement groove (31) penetrates the lower surface of the second movable plate (3); the first placement groove (21) and the second placement groove (31) are both semicircular and have the same radius; the first movable plate (2) is provided with a first slide groove (22) along the inner bottom wall of the first placement groove (21); both ends of the first slide groove (22) penetrate the upper surface of the first movable plate (2); the second movable plate (3) is provided with a second slide groove (22) along the inner bottom wall of the second placement groove (31); A second slide groove (32), both ends of the second slide groove (32) pass through the lower surface of the second movable plate (3), the size of the first slide groove (22) is the same as the size of the second slide groove (32), the first movable plate (2) is slidably connected to a first arc-shaped clamping plate (23) at the first slide groove (22), and the second movable plate (3) is slidably connected to a second arc-shaped clamping plate (33) at the second slide groove (32), the first arc-shaped clamping plate (23) and the second arc-shaped clamping plate (33) are the same in size, a moving component (4) for driving the first movable plate (2) and the second movable plate (3) to move toward or away from each other is provided at the welding table (1), and a rotating component (5) for driving the first arc-shaped clamping plate (23) and the second arc-shaped clamping plate (33) to rotate is provided at the first movable plate (2) and the second movable plate (3).

2. A welding fixture positioning and clamping linkage mechanism according to claim 1, characterized in that: The upper surface of the welding platform (1) is fixedly provided with a first support plate (11), the upper end of the first support plate (11) is fixedly provided with a second support plate (12), the second support plate (12) is arranged horizontally, the moving assembly (4) comprises a bidirectional screw rod (41) and a moving rod (42), the bidirectional screw rod (41) is arranged between the second support plate (12) and the upper surface of the welding platform (1), one end of the bidirectional screw rod (41) is rotatably connected to the upper surface of the welding platform (1), the other end of the bidirectional screw rod (41) passes through the second support plate (12) and is rotatably connected to the second support plate (12), two moving rods (42) are arranged, one end of each of the two moving rods (42) extends to the bidirectional screw rod At (41), the bidirectional screw rod (41) passes through one end of the two moving rods (42), the bidirectional screw rod (41) and the moving rod (42) are threadedly connected, and one end of the two moving rods (42) away from the bidirectional screw rod (41) is fixedly connected to the first moving plate (2) and the second moving plate (3), respectively. A first motor (13) is fixedly arranged above the second support plate (12), and the output shaft of the first motor (13) is fixedly connected to the end of the bidirectional screw rod (41). A guide rod (14) is fixedly arranged between the second support plate (12) and the welding table (1), and the guide rod (14) passes through the two moving rods (42), and the guide rod (14) and the moving rod (42) are slidably connected.

3. The welding fixture positioning and clamping linkage mechanism according to claim 1, characterized in that: The first movable plate (2) is slidably connected with an arc-shaped slider (6) in the first sliding groove (22) and the second movable plate (3) is slidably connected with an arc-shaped slider (6) in the second sliding groove (32); the arc-shaped slider (6) is connected with a connecting rod (61); one end of the connecting rod (61) at the first movable plate (2) away from the arc-shaped slider (6) is fixedly connected to the first arc-shaped clamping plate (23); and one end of the connecting rod (61) at the second movable plate (3) away from the arc-shaped slider (6) is fixedly connected to the second arc-shaped clamping plate (33).

4. A welding fixture positioning and clamping linkage mechanism according to claim 3, characterized in that: A fixed rod (62) is fixedly provided on one side of the arc-shaped slider (6). The rotating assembly (5) comprises a first gear (51) and a second gear (52). The first gear (51) and the second gear (52) are both arc-shaped and have the same size. The first gear (51) and the second gear (52) are respectively fixedly connected to one end of the two fixed rods (62). A second motor (34) is fixedly provided on the second movable plate (3). A third gear (35) is fixedly provided on the output shaft of the second motor (34). Both the first gear (51) and the second gear (52) are meshed and matched with the third gear (35).

5. The welding fixture positioning and clamping linkage mechanism according to claim 3 is characterized in that: The end side walls of the arc-shaped sliding block (6) are provided with fixed grooves (63), and the first movable plate (2) is provided with sliding rods (7) at both ends of the first sliding groove (22) and the second movable plate (3) is provided with sliding rods (7) at both ends of the second sliding groove (32). The length direction of the sliding rod (7) is perpendicular to the first movable plate (2), and the sliding rod (7) is located on one side of the first movable plate (2) or the second movable plate (3). One end of the sliding rod (7) passes through a side wall of the first sliding groove (22) or the second sliding groove (32), and the sliding rod (7) and the first movable plate (2) or the second movable plate (3) are slidably connected, and the sliding rod (7) and the fixed groove (63) are plug-fitted and correspond one to one.

6. A welding fixture positioning and clamping linkage mechanism according to claim 5, characterized in that: An auxiliary plate (71) is fixedly provided at one end of the slide bar (7) away from the arc-shaped slide block (6); a telescopic rod (72) is fixedly provided between the auxiliary plate (71) and the first movable plate (2) at the first movable plate (2) and between the auxiliary plate (71) and the second movable plate (3) at the second movable plate (3); the telescopic rod (72) is composed of a plurality of rod bodies which are sleeved and slidably connected to each other.

7. A welding fixture positioning and clamping linkage mechanism according to claim 6, characterized in that: A spring (73) is fixedly arranged between the auxiliary plate (71) and the first movable plate (2) at the first movable plate (2) and between the auxiliary plate (71) and the second movable plate (3) at the second movable plate (3). The spring (73) is sleeved outside the telescopic rod (72) and corresponds to each other one by one. A push block (74) is arranged on one side of the sliding rod (7), and a side wall of the push block (74) is arranged as an inclined surface.

8. The welding fixture positioning and clamping linkage mechanism according to claim 3, characterized in that: An anti-slip layer (8) is fixedly provided on one end of the first arc-shaped clamping plate (23) and the second arc-shaped clamping plate (33) that is away from the connecting rod (61).

9. The welding fixture positioning and clamping linkage mechanism according to claim 3, characterized in that: A threaded hole (64) is provided on one side of the arc-shaped slider (6) facing the connecting rod (61), and one end of the connecting rod (61) extends into the threaded hole (64) and is threadedly connected to the arc-shaped slider (6).

10. A welding fixture positioning and clamping linkage mechanism according to claim 2, characterized in that: Push plates (9) are slidably connected to opposite sides of the upper surface of the welding platform (1); the first movable plate (2) is located between the push plates (9); an electric cylinder (91) is provided on the side of the push plate (9) away from the first movable plate (2); the output shaft of the electric cylinder (91) is fixedly connected to the push plate (9); a follower plate (92) is slidably connected to the side of the push plate (9) away from the electric cylinder (91) in a vertical direction; and an avoidance groove (15) for avoiding the movable rod (42) and the first movable plate (2) is provided on the upper surface of the welding platform (1).

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