Square corrugated pipe welding equipment

Abstract

The square corrugated pipe welding equipment comprises a cabinet body and a pipe piece pressing connection mechanism installed on the cabinet body, and a feeding mechanism and a discharging mechanism are arranged on the left side and the right side of the pipe piece pressing connection mechanism correspondingly. The pneumatic driving unit drives the sliding base to drive the middle mold to ascend and be separated from the lower mold, the duct pieces shown in the figure are clamped between the middle mold and the lower mold through the feeding mechanism, then the upper mold and the lower mold are assembled, the two duct pieces are clamped and fixed, the three-way welding gun moving mechanism controls the spatial positions of the welding gun and the image collecting mechanism, and the three-way welding gun moving mechanism controls the welding gun and the image collecting mechanism. Rotation of the welding gun and the image acquisition mechanism is controlled through the second rotation driving unit at the arc angle of the segment, welding of the straight edge and the arc edge at the joint of the segment is achieved, in the process, the relative position of the image acquisition mechanism and the welding gun can be adjusted through the camera displacement adjusting mechanism, it is guaranteed that the camera displacement adjusting mechanism has a good image acquisition visual angle, and the welding efficiency is improved. And then the upper die is opened, and the discharging mechanism clamps the duct piece for discharging.

Description

Technical Field

[0001] The invention relates to the technical field of bellows processing, in particular to square bellows welding equipment. Background Art

[0002] Bellows is a kind of elastic element for pressure measurement in pressure measuring instruments. It is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. Bellows are elastic and can produce displacement under the action of pressure, axial force, transverse force or bending moment. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The bellows has a thinner wall and higher sensitivity. The measuring range is from tens of Pa to tens of MPa.

[0003] In addition, bellows can also be used as a sealing isolation element to separate two media or prevent harmful fluids from entering the measuring part of the equipment. It can also be used as a compensation element to compensate for the temperature error of the instrument by using its volume variability. Sometimes it is also used as an elastic connection joint between two parts. In the processing of bellows, the inner rings of the pipe segments need to be welded in pairs. When welding the inner rings, manual amplification welding is usually used, and the welding quality is unstable and the efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a square corrugated pipe welding device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A square corrugated pipe welding device comprises a cabinet and a pipe segment crimping mechanism installed thereon, wherein a loading mechanism and a unloading mechanism are respectively arranged on the left and right sides of the pipe segment crimping mechanism, a three-way welding gun moving mechanism is arranged below the pipe segment crimping mechanism, an output end of the three-way welding gun moving mechanism is connected to a rotation drive unit 2, a welding gun mounting mechanism and a camera displacement adjustment mechanism are respectively installed at the output end of the rotation drive unit 2, and an image acquisition mechanism is installed at the output end of the camera displacement adjustment mechanism.

[0006] Preferably, the pipe segment crimping mechanism includes a pneumatic drive unit, a guide seat and a lower mold installed on a cabinet, a slide seat is slidably connected to the guide seat, the slide seat is installed at the output end of the pneumatic drive unit, an upper mold is installed at the bottom of the slide seat, guide rods are slidably arranged at the four corners of the upper mold, the upper end of the guide rod passes through the slide seat and is threadedly connected with a nut, the lower end of the guide rod is connected to a middle mold, an elastic member is arranged between the middle mold and the upper mold, the elastic member is arranged on the guide rod, and square openings are arranged on the slide seat, the lower mold, the middle mold and the upper mold.

[0007] Preferably, the loading mechanism and the unloading mechanism both include a rotation drive unit 1 installed on the cabinet, the output end of the rotation drive unit 1 is connected to the Z-direction drive unit 3, the output end of the Z-direction drive unit 3 is connected to the Y-direction biaxial drive unit, and the output end of the Y-direction biaxial drive unit is installed with a symmetrically arranged clamping head.

[0008] Preferably, the three-directional welding gun moving mechanism includes a Y-direction drive unit 1 installed on the cabinet, an X-direction drive unit 1 is installed at the output end of the Y-direction drive unit 1, a Z-direction drive unit 1 is installed at the output end of the X-direction drive unit 1, and the output end of the Z-direction drive unit 1 is connected to the rotation drive unit 2.

[0009] Preferably, the camera displacement adjustment mechanism includes a Y-axis drive unit 2 installed at the output end of the rotation drive unit 2, the output end of the Y-axis drive unit 2 is installed with an X-axis drive unit 2, the output end of the X-axis drive unit 2 is installed with a Z-axis drive unit 2, the Z-axis drive unit 2 is connected to the image acquisition mechanism through a camera mounting seat, and a locking mechanism is arranged between the Y-axis drive unit 2, the X-axis drive unit 2 and the Z-axis drive unit 2.

[0010] Preferably, the welding gun mounting mechanism comprises a welding gun mounting seat mounted on the second output end of the rotary drive unit, the welding gun mounting seat is provided with a waist hole, the waist hole is connected to a quick release mechanism through a connecting piece, and the quick release mechanism is installed with a welding gun.

[0011] Preferably, the upper die and the lower die are both provided with contoured convex edges on one side close to the middle die.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the pneumatic drive unit in the present invention drives the slide to drive the middle mold to rise and separate from the lower mold, and the pipe segment shown in the figure is clamped between the middle mold and the lower mold by the loading mechanism, and then the upper mold and the lower mold are closed to clamp the two pipe segments, and the three-way welding gun moving mechanism controls the spatial position of the welding gun and the image acquisition mechanism, and the rotation of the welding gun and the image acquisition mechanism is controlled by rotating the driving unit 2 at the arc angle of the pipe segment to achieve welding of the straight edge and the arc edge at the connection of the pipe segment. In this process, the relative position of the image acquisition mechanism and the welding gun can be adjusted by the camera displacement adjustment mechanism to ensure that it has a better image acquisition viewing angle, and then the upper mold is opened, and the unloading mechanism clamps the pipe segment for unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 A schematic diagram of the structure proposed by the present invention; Figure 2A schematic diagram of the connection structure of the three-way welding gun moving mechanism and the welding gun mounting mechanism proposed by the present invention; Figure 3 This is a schematic diagram of the camera displacement adjustment mechanism structure proposed by the present invention; Figure 4 Schematic diagram of the pipe segment crimping mechanism proposed in the present invention Figure 1 ; Figure 5 Schematic diagram of the pipe segment crimping mechanism proposed in the present invention Figure 2 ; Figure 6 This is a schematic diagram of the lower mold structure proposed by the present invention; Figure 7 This is a schematic structural diagram of the square corrugated pipe segment proposed in the present invention.

[0015] In the figure: cabinet 1, pipe segment crimping mechanism 2, pneumatic drive unit 21, guide seat 22, slide seat 23, lower die 24, contoured flange 241, middle die 25, guide rod 26, upper die 27, nut 28, elastic member 29, loading mechanism 3, unloading mechanism 4, rotation drive unit 1 41, Z-axis drive unit 3 42, Y-axis biaxial drive unit 43, clamping head 44, three-way welding gun moving mechanism 5, Y-axis drive unit 1 51, X-axis drive unit 1 52, Z-axis drive unit 1 53, rotation drive unit 2 6, camera displacement adjustment mechanism 7, Y-axis drive unit 2 71, X-axis drive unit 2 72, Z-axis drive unit 2 73, camera mounting seat 74, locking mechanism 75, welding gun mounting mechanism 8, welding gun mounting seat 81, quick release mechanism 82, welding gun 83, image acquisition mechanism 9. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figure 1-7 A square corrugated pipe welding device comprises a cabinet 1 and a pipe segment crimping mechanism 2 installed thereon, a loading mechanism 3 and a unloading mechanism 4 are respectively arranged on the left and right sides of the pipe segment crimping mechanism 2, a three-way welding gun moving mechanism 5 is arranged below the pipe segment crimping mechanism 2, an output end of the three-way welding gun moving mechanism 5 is connected to a rotation driving unit 2 6, an output end of the rotation driving unit 2 6 is respectively installed with a welding gun mounting mechanism 8 and a camera displacement adjustment mechanism 7, and an image acquisition mechanism 9 is installed at the output end of the camera displacement adjustment mechanism 7.

[0018] The pneumatic drive unit 21 drives the slide 23 to drive the middle mold 25 to rise and separate from the lower mold 24. Figure 7The pipe segment shown is clamped between the middle mold 25 and the lower mold 24 by the feeding mechanism 3, and then the upper mold 27 and the lower mold 24 are closed to clamp and fix the two pipe segments. The three-way welding gun moving mechanism 5 controls the spatial position of the welding gun 83 and the image acquisition mechanism 9. The rotation of the welding gun 83 and the image acquisition mechanism 9 is controlled by the rotating drive unit 2 6 at the arc angle of the pipe segment to achieve the welding of the straight edges and arc edges at the connection of the pipe segment. In this process, the relative position of the image acquisition mechanism 9 and the welding gun 83 can be adjusted by the camera displacement adjustment mechanism 7 to ensure that it has a better image acquisition viewing angle. Then the upper mold 27 is opened, and the unloading mechanism 4 clamps the pipe segment for unloading.

[0019] In this embodiment, the pipe segment crimping mechanism 2 includes a pneumatic drive unit 21, a guide seat 22 and a lower mold 24 installed on the cabinet 1. A slide 23 is slidably connected to the guide seat 22. The slide 23 is installed at the output end of the pneumatic drive unit 21. An upper mold 27 is installed at the bottom of the slide 23. Guide rods 26 are slidably arranged at the four corners of the upper mold 27. The upper end of the guide rod 26 passes through the slide 23 and is threadedly connected with a nut 28. The lower end of the guide rod 26 is connected to a middle mold 25. An elastic member 29 is arranged between the middle mold 25 and the upper mold 27. The elastic member 29 is arranged on the guide rod 26. Square openings are arranged on the slide 23, the lower mold 24, the middle mold 25 and the upper mold 27.

[0020] The pneumatic drive unit 21 drives the slide 23 to rise and fall along the guide seat 22, and pulls the middle mold 25 up through the guide rod 26 to separate the middle mold 25 from the lower mold 24. When descending, the elastic member 29 is compressed to prevent the upper mold 27 from being unable to close the mold with the lower mold 24.

[0021] In this embodiment, the loading mechanism 3 and the unloading mechanism 4 both include a rotating drive unit 41 installed on the cabinet 1, the output end of the rotating drive unit 41 is connected to the Z-direction driving unit 3 42, the output end of the Z-direction driving unit 3 42 is connected to the Y-direction biaxial driving unit 43, the output end of the Y-direction biaxial driving unit 43 is installed with a symmetrically arranged clamping head 44, the biaxial driving unit 43 controls the clamping head 44 to clamp the pipe segment, the Z-direction driving unit 3 42 controls the height of the pipe segment, and the rotating drive unit 41 controls the rotation of the pipe segment to realize loading and unloading.

[0022] In this embodiment, the three-way welding gun moving mechanism 5 includes a Y-direction drive unit 51 installed on the cabinet 1, an X-direction drive unit 52 is installed at the output end of the X-direction drive unit 52, a Z-direction drive unit 53 is installed at the output end of the X-direction drive unit 52, and the output end of the Z-direction drive unit 53 is connected to the rotation drive unit 2 6.

[0023] The X-direction driving unit 52, the Y-direction driving unit 51 and the Z-direction driving unit 53 control the displacement of the welding gun 83 in the X-direction, the Y-direction and the Z-direction respectively.

[0024] In this embodiment, the camera displacement adjustment mechanism 7 includes a Y-axis driving unit 71 installed at the output end of the rotation driving unit 6, an X-axis driving unit 72 is installed at the output end of the Y-axis driving unit 71, a Z-axis driving unit 73 is installed at the output end of the X-axis driving unit 72, and the Z-axis driving unit 73 is connected to the image acquisition mechanism 9 through a camera mounting seat 74. A locking mechanism 75 is arranged between the Y-axis driving unit 71, the X-axis driving unit 72 and the Z-axis driving unit 73. The Y-axis driving unit 71, the X-axis driving unit 72 and the Z-axis driving unit 73 are used to adjust the displacement of the image acquisition mechanism 9 in the X, Y and Z directions, and adjust its position.

[0025] In this embodiment, the welding gun mounting mechanism 8 includes a welding gun mounting seat 81 installed at the output end of the rotating drive unit 26. The welding gun mounting seat 81 is provided with a waist hole, and the waist hole is connected to a quick release mechanism 82 through a connecting piece. The quick release mechanism 82 is installed with a welding gun 83.

[0026] In this embodiment, the upper mold 27 and the lower mold 24 are both provided with a contoured convex edge 241 on one side close to the middle mold 25. The contoured convex edge 241 fits the shape of the pipe segment to ensure that the pipe segment is fixed more stably.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A square corrugated pipe welding device, comprising a cabinet (1) and a pipe segment crimping mechanism (2) installed thereon, characterized in that: A loading mechanism (3) and a unloading mechanism (4) are respectively arranged on the left and right sides of the pipe segment crimping mechanism (2); a three-way welding gun moving mechanism (5) is arranged below the pipe segment crimping mechanism (2); an output end of the three-way welding gun moving mechanism (5) is connected to a second rotary drive unit (6); a welding gun mounting mechanism (8) and a camera displacement adjustment mechanism (7) are respectively installed at the output end of the second rotary drive unit (6); and an image acquisition mechanism (9) is installed at the output end of the camera displacement adjustment mechanism (7).

2. A square corrugated pipe welding device according to claim 1, characterized in that: The pipe segment crimping mechanism (2) comprises a pneumatic drive unit (21), a guide seat (22) and a lower die (24) mounted on a cabinet (1); a slide seat (23) is slidably connected to the guide seat (22); the slide seat (23) is mounted on the output end of the pneumatic drive unit (21); an upper die (27) is mounted on the bottom of the slide seat (23); guide rods (26) are slidably arranged at four corners of the upper die (27); the upper end of the guide rod (26) passes through the slide seat (23) and is threadedly connected to a nut (28); the lower end of the guide rod (26) is connected to a middle die (25); an elastic member (29) is arranged between the middle die (25) and the upper die (27); the elastic member (29) is arranged on the guide rod (26); and square openings are arranged on the slide seat (23), the lower die (24), the middle die (25) and the upper die (27).

3. A square corrugated pipe welding device according to claim 2, characterized in that: The loading mechanism (3) and the unloading mechanism (4) both comprise a rotation drive unit 1 (41) mounted on the cabinet (1); the output end of the rotation drive unit 1 (41) is connected to a Z-direction drive unit 3 (42); the output end of the Z-direction drive unit 3 (42) is connected to a Y-direction dual-axis drive unit (43); and the output end of the Y-direction dual-axis drive unit (43) is mounted with a symmetrically arranged clamping head (44).

4. A square corrugated pipe welding device according to claim 3, characterized in that: The three-directional welding gun moving mechanism (5) comprises a Y-direction drive unit 1 (51) mounted on the cabinet (1), an X-direction drive unit 1 (52) being mounted on the output end of the Y-direction drive unit 1 (51), a Z-direction drive unit 1 (53) being mounted on the output end of the X-direction drive unit 1 (52), and an output end of the Z-direction drive unit 1 (53) being connected to a rotation drive unit 2 (6).

5. A square corrugated pipe welding device according to claim 4, characterized in that: The camera displacement adjustment mechanism (7) comprises a second Y-axis driving unit (71) mounted on the output end of the second rotation driving unit (6); a second X-axis driving unit (72) is mounted on the output end of the second Y-axis driving unit (71); a second Z-axis driving unit (73) is mounted on the output end of the second X-axis driving unit (72); the second Z-axis driving unit (73) is connected to the image acquisition mechanism (9) via a camera mounting seat (74); and a locking mechanism (75) is provided between the second Y-axis driving unit (71), the second X-axis driving unit (72) and the second Z-axis driving unit (73).

6. A square corrugated pipe welding device according to claim 5, characterized in that: The welding gun mounting mechanism (8) comprises a welding gun mounting seat (81) mounted on the output end of the second rotation drive unit (6), the welding gun mounting seat (81) being provided with a waist hole, the waist hole being connected to a quick release mechanism (82) via a connecting piece, and the quick release mechanism (82) being mounted with a welding gun (83).

7. A square corrugated pipe welding device according to claim 6, characterized in that: The upper die (27) and the lower die (24) are both provided with a contoured convex edge (241) on one side close to the middle die (25).

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