Universal rotary clamping device for welding small pipe

Abstract

The utility model relates to a universal rotary clamping device for welding a small pipe, which comprises a bottom plate, a bottom plate fastening screw, a support column, a bearing, a splash-proof cover plate, a fastening nut, a universal rotating shaft, an external thread universal hoop, a rotating disc, a fixed clamping plate, a clamping plate with a hole, a clamping screw and a screwing knob, wherein the upper end part of the universal rotating shaft is a spherical part matched with the inner diameter of a spherical cavity; the spherical part of the universal rotating shaft is clamped in the spherical cavity of the external thread universal hoop to rotate, and the tightness of the spherical part of the universal rotating shaft is limited by rotating the fastening nut on the external thread universal hoop. The automatic welding device is ingenious in design and simple in structure, achieves conversion of different welding angles and directions, greatly reduces welding operation difficulty, reduces manual labor intensity, improves production efficiency, and has good market prospects and development space compared with the prior art.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a universal rotary clamping device for welding small pipes. Background Technology

[0002] In the process of welding hydraulic supports, it is often necessary to weld the perimeter of the joint and the fluid pipe. In the workshop, the fluid pipe and the joint are often placed horizontally on the ground or stood vertically on the ground for welding. Sometimes, the welding torch needs to be adjusted to weld the perimeter of the joint and the fluid pipe. At this time, the welder needs to rotate the welding or stop welding, turn the part to be welded, and then continue the welding work. This welding method usually results in welding defects and unsightly welds.

[0003] Designing a cleverly designed, simple, and versatile rotary clamping device for welding small pipes that allows for changes in welding angles and directions, significantly reduces the difficulty of welding operations, decreases manual labor intensity, and improves production efficiency is a problem that needs to be solved. Utility Model Content

[0004] To address the technical problems arising from the inability of traditional welding tables to continuously change the angle and direction of the welding torch during the circumferential welding of existing joints and fluid-conducting pipes, resulting in welding defects, unsightly welds, and severely impacting production efficiency, this utility model provides a universal rotating clamping device for welding small pipes. This device features an ingenious design and simple structure, enabling the transformation of different welding angles and directions, significantly reducing the difficulty of welding operations, decreasing manual labor intensity, and improving production efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a universal rotating clamping device for welding small tubes, including a base plate, base plate fastening screws, a support column, a bearing, a splash guard, a fastening nut, a universal rotating shaft, an external thread universal clamp, a turntable, a fixing clamp, a perforated clamp, clamping screws, and a tightening knob. The support column is a cylindrical structure with a slot at the upper end. The bearing is horizontally installed in the upper slot of the support column. The edge of the splash guard is welded and fixed to the upper end face of the support column to enclose the bearing in the upper slot of the support column. The lower end of the turntable... A fixed welded external thread universal clamp is provided, with a hollow spherical cavity in the middle of the clamp to hold the universal shaft within the cavity. The upper end of the universal shaft is a spherical part that matches the inner diameter of the cavity. The spherical part of the universal shaft is held in the spherical cavity of the external thread universal clamp and rotates. The tightness of the spherical part of the universal shaft is limited by rotating the fastening nut on the external thread universal clamp. The lower end of the universal shaft is a cylinder that matches the inner ring of the bearing and is fixedly installed on the inner ring of the bearing.

[0006] As a further optimization of the universal rotary clamping device for welding small tubes, the fixed clamping plate and the perforated clamping plate are vertically and symmetrically arranged on the turntable. The perforated clamping plate is provided with clamping screws, and the small tube workpiece is clamped by tightening the clamping screws.

[0007] As a further optimization of the universal rotary clamping device for welding small tubes, the base plate is fixed to the processing panel by base plate fastening screws.

[0008] As a further optimization of the universal rotary clamping device for welding small tubes, the bearing is a ceramic bearing.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] I. This utility model includes a base plate, base plate fastening screws, a support column, a bearing, a splash guard, a fastening nut, a universal shaft, an external thread universal clamp, a turntable, a fixing clamp, a perforated clamp, a clamping screw, and a tightening knob. The lower end of the turntable is fixedly welded with an external thread universal clamp, the middle of which is a hollow spherical cavity to hold the universal shaft in the spherical cavity. The upper end of the universal shaft is a spherical part that matches the inner diameter of the spherical cavity. The spherical part of the universal shaft is held in the spherical cavity of the external thread universal clamp and rotates. The tightness of the spherical part of the universal shaft is limited by rotating the fastening nut on the external thread universal clamp.

[0011] II. This utility model uses common plates, pipes, and rods, and can use stubs as raw materials, making processing convenient and easy. The bearings, bolts, etc. used for rotation are all standard parts, resulting in low manufacturing costs. The welder can assemble the joint to be welded and the small pipe on the turntable, and then tighten the components to be welded by screwing in and out the clamping screws. The direction of the turntable is fixed by screwing in and out the external thread universal clamp of the tightening nut. Then, the weld joint and the small pipe are welded around the perimeter by manually rotating the turntable. This device is convenient and quick to use, has low operation difficulty, and greatly improves welding efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a side sectional view of the present invention;

[0014] Figure 3 This is an exploded view of the structure of this utility model;

[0015] Marked in the diagram: 1. Base plate, 2. Base plate fastening screw, 3. Support column, 4. Bearing, 5. Splash guard, 6. Fastening nut, 7. Universal shaft, 8. External thread universal clamp, 9. Turntable, 10. Fixed clamp, 11. Perforated clamp, 12. Clamping screw, 13. Tightening knob. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0017] As shown in the figure, the universal rotary clamping device for welding small tubes includes a base plate 1, base plate fastening screws 2, support column 3, bearing 4, splash guard 5, fastening nut 6, universal shaft 7, external thread universal clamp 8, turntable 9, fixing clamp 10, perforated clamp 11, clamping screw 12, and tightening screw 13. The support column 3 is a cylindrical structure with a slot at the upper end. The bearing 4 is horizontally installed in the upper slot of the support column 3. The edge of the splash guard 5 is welded and fixed to the upper end face of the support column 3 to enclose the bearing 4 in the upper slot of the support column 3. The lower end of the turntable 9 is fixedly welded. There is an external thread universal clamp 8, the middle of which is a hollow spherical cavity to hold the universal shaft 7 in the spherical cavity; the upper end of the universal shaft 7 is a spherical part that matches the inner diameter of the spherical cavity, and the spherical part of the universal shaft 7 is held in the spherical cavity of the external thread universal clamp 8 and rotates, and the tightness of the spherical part of the universal shaft 7 is limited by rotating the fastening nut 6 on the external thread universal clamp 8; the lower end of the universal shaft 7 is a cylinder that matches the inner ring of the bearing 4, and the lower end of the universal shaft 7 is fixedly installed on the inner ring of the bearing 4.

[0018] The fixed clamping plate 10 and the perforated clamping plate 11 are vertically and symmetrically arranged on the turntable 9. The perforated clamping plate 11 is provided with clamping screws 12, and the small tube workpiece is clamped by tightening the clamping screws 12.

[0019] The base plate 1 is fixed to the ground by base plate fastening screws 2.

[0020] The bearing 4 is a ceramic bearing.

[0021] The usage process of this utility model is as follows: Place the joint to be welded on the upper part of the turntable 9, tighten the clamping screws 12 to clamp and fix the joint, align the small tube to be welded with the joint hole and spot weld it in place, tilt the turntable to a suitable welding angle (the position to be welded is in a horizontal state), and then screw the fastening nut 6 into the external thread universal clamp 8, so that it clamps the spherical part of the upper part of the universal shaft 7, thereby achieving a stable state without drooping after the turntable is tilted. At this time, the operator can manually rotate the turntable 9, driving the lower cylinder of the universal shaft 7 to rotate 360° in the bearing 4, thereby achieving the method of circumferential welding of the small tube and the joint without the operator rotating the turntable 360°.

[0022] In practical applications, this rotating fixture uses common plates, pipes, and bars. Material scraps can be used, making processing convenient and easy. The bearings, bolts, and other components used for rotation are all standard parts, resulting in low manufacturing costs. Welders can assemble the joint to be welded and the small pipe onto the turntable, then tighten the components by screwing in and out the clamping screws. The direction of the turntable can be fixed by screwing in and out the external thread universal clamp of the tightening nut. The weld joint and the small pipe can then be welded around the perimeter by manually rotating the turntable. It has a wide range of applications and is easy to operate.

[0023] In practical applications, bearing 4 is selected as a ceramic bearing. Since current is generated during the welding process, if a steel bearing is used, the current will cause the steel bearing to deform and the turntable to lose its ability to rotate. Therefore, this utility model selects a ceramic bearing, which can ensure normal rotation of the bearing and guarantee normal welding even if current passes through it during the welding process.

[0024] This utility model is ingenious and simple in structure, enabling different welding angles and directions to be changed, greatly reducing the difficulty of welding operations, reducing manual labor intensity, and improving production efficiency. It solves the technical problems of existing welding stations being unable to continuously change the angle and direction of the welding torch during the circumferential welding of joints and fluid pipes, resulting in welding defects, unsightly welds, and serious impact on production efficiency. Compared with existing technologies, it has a very good market prospect and development space.

[0025] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.

Claims

1. A universal rotary clamping device for welding small tubes, characterized in that: The components include a base plate (1), base plate fastening screws (2), a support column (3), a bearing (4), a splash guard (5), a fastening nut (6), a universal joint (7), an external thread universal clamp (8), a turntable (9), a fixing clamp (10), a perforated clamp (11), a clamping screw (12), and a tightening screw (13). The support column (3) is a cylindrical structure with a slot at the top. The bearing (4) is horizontally installed in the upper slot of the support column (3). The edge of the splash guard (5) is welded and fixed to the upper end face of the support column (3) to enclose the bearing (4) in the upper slot of the support column (3). The lower end of the turntable (9) is fixedly welded with... The external thread universal clamp (8) has a hollow spherical cavity in the middle to hold the universal shaft (7) in the spherical cavity; the upper end of the universal shaft (7) is a spherical part that matches the inner diameter of the spherical cavity. The spherical part of the universal shaft (7) is held in the spherical cavity of the external thread universal clamp (8) and rotates. The tightness of the spherical part of the universal shaft (7) is limited by rotating the fastening nut (6) on the external thread universal clamp (8); the lower end of the universal shaft (7) is a cylinder that matches the inner ring of the bearing (4). The lower end of the universal shaft (7) is fixedly installed on the inner ring of the bearing (4).

2. The universal rotary clamping device for welding small tubes as described in claim 1, characterized in that: The fixed clamping plate (10) and the perforated clamping plate (11) are vertically and symmetrically arranged on the turntable (9). The perforated clamping plate (11) is provided with clamping screws (12). The small tube workpiece is clamped by tightening the clamping screws (12).

3. The universal rotary clamping device for welding small tubes as described in claim 1, characterized in that: The base plate (1) is fixed to the processing panel by base plate fastening screws (2).

4. The universal rotary clamping device for welding small tubes as described in claim 1, characterized in that: The bearing (4) is a ceramic bearing.

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