Combined stainless steel pipe fitting welding auxiliary fixing device
By designing a combined stainless steel pipe welding auxiliary fixing device, a U-shaped clamping plate and a flipping component are used to clamp and flip steel pipes of different diameters simultaneously, solving the problem that existing clamps are difficult to fix different diameters and require repeated opening and closing, thus improving welding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI SPELL VACUUM TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Existing clamps are difficult to use to simultaneously fix pipes of different diameters when welding stainless steel pipes, and require repeated opening and closing of the clamps for flipping, which is cumbersome.
A combined stainless steel pipe welding auxiliary fixing device was designed, which adopts a U-shaped clamping plate and a flipping assembly. It achieves clamping and synchronous flipping of steel pipes of different diameters through an electric telescopic rod and a gear rack structure, avoiding repeated opening and closing of the clamp.
It enables stable clamping and synchronous flipping of steel pipes of different diameters, simplifies welding operations, and improves welding efficiency and quality.
Smart Images

Figure CN224390389U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping technology, specifically relating to a combined stainless steel pipe welding auxiliary fixing device. Background Technology
[0002] Stainless steel pipe fittings are made from stainless steel and are widely used in construction, chemical, and food industries due to their excellent corrosion resistance, strength, and aesthetics. They are formed through casting, welding, and stamping processes and come in a variety of types, including elbows, tees, and flanges, to meet the connection and turning requirements of different piping systems. During the production and processing of stainless steel pipes, it is often necessary to weld the ends of two pipe fittings together, requiring the use of clamps to hold and fix the two fittings in place.
[0003] There are often problems when clamping and welding steel pipes. First, it is inconvenient to use a set of fixed clamps to clamp and fix steel pipes of different diameters. Second, after the upper surface is welded, it is often necessary to remove the steel pipe from the clamp, flip up the unwelded lower surface, and then clamp and fix it again, which is very troublesome. Therefore, it is necessary to design a new welding auxiliary fixing device to solve this problem. Utility Model Content
[0004] The purpose of this utility model is to provide a combined stainless steel pipe welding auxiliary fixing device to solve the problems mentioned in the background art, such as the inconvenience of clamping and fixing steel pipes of different diameters and the need to repeatedly open and close the clamp to flip the steel pipe during welding.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined stainless steel pipe fitting welding auxiliary fixing device, comprising...
[0006] Base, and clamping seats symmetrically distributed on both sides of the top surface of the base;
[0007] The clamping assembly includes an inner collar rotatably disposed inside the clamping seat, a placement platform fixed inside the inner collar, an electric telescopic rod fixed inside the inner collar, a U-shaped clamping piece connected to the output end of the electric telescopic rod, and a locking tooth surrounding the outer surface of the inner collar.
[0008] The flipping assembly includes a gear groove formed inside the base and communicating with the inside of the clamping seat, a gear rotatably disposed inside the gear groove and meshing with the locking teeth, a connecting rod fixedly connected to the two gears, and a handle connected to the outer end of the connecting rod.
[0009] Preferably, the surface of the placement platform is provided with a U-shaped placement groove, and a rubber pad is provided inside the placement groove.
[0010] Preferably, the flipping assembly further includes an end groove formed on one side of the base, the handle is placed inside the end groove, and a pull ring is fixed to the outer end of the handle.
[0011] Preferably, the flipping assembly further includes a locking rod fixed to the inner wall of the end slot and a locking groove opened on the inner side of the handle and adapted to the locking rod, wherein the handle and the outer end of the connecting rod are elastically telescopically connected.
[0012] Preferably, the base surface is provided with a power supply component, which includes a power source disposed on the top surface of the base and a spiral wire connected to the power source, one end of which is connected to the electric telescopic rod.
[0013] Preferably, the power supply component further includes a limiting piece, which is fixed to one end surface of the clamping seat, and the spiral wire passes through the limiting piece.
[0014] Preferably, a receiving tray is provided on the top surface of the base between the clamping seats on both sides, and support legs are symmetrically fixed on both sides of the bottom of the base.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The U-shaped clamping plate, combined with the placement platform, can clamp and fix steel pipes of different diameters. After the welding work on the upper surface is completed, the handle can be turned, and the connecting rod drives the two gears to rotate synchronously. With the cooperation of the gears and the clamping teeth, the clamping components on both sides rotate synchronously, thereby driving the two sections of steel pipe to rotate synchronously. After the lower surface is flipped up, the welding work can continue. The advantage of this design is that the steel pipe can be flipped without repeatedly opening and closing the clamp, and the flipping of the two ends of the steel pipe can be kept synchronous, avoiding the generation of torque at the welding point, which would affect the welding effect. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0018] Figure 2 This is a three-dimensional schematic diagram of the clamping assembly of this utility model;
[0019] Figure 3 This is a side sectional view of the clamping base of this utility model;
[0020] Figure 4 This is a front sectional view of one end of the flipping component of this utility model;
[0021] Figure 5 This utility model Figure 1 Enlarged view of area A in the middle;
[0022] In the diagram: 100, base; 200, clamping seat; 300, clamping assembly; 301, built-in collar; 302, placement platform; 303, U-shaped clamping piece; 304, electric telescopic rod; 305, locking tooth; 400, flipping assembly; 401, gear groove; 402, gear; 403, connecting rod; 404, handle; 405, end groove; 406, locking rod; 407, locking groove; 500, power supply assembly; 501, power supply; 502, spiral wire; 503, limiting piece; 600, receiving tray; 700, support leg. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example
[0025] Please see Figures 1 to 5 This embodiment provides a technical solution: a combined stainless steel pipe welding auxiliary fixing device, comprising...
[0026] The base 100 and the clamping seats 200 symmetrically distributed on both sides of the top surface of the base 100 are used to clamp the two steel pipes. When clamping the two steel pipes, the steel pipes need to be put into the clamping seats 200 on both sides respectively, so that the ends of the two steel pipes fit together.
[0027] The clamping assembly 300 includes an inner collar 301 rotatably disposed inside the clamping seat 200, a placement platform 302 fixed inside the inner collar 301, an electric telescopic rod 304 fixed inside the inner collar 301, a U-shaped clamping piece 303 connected to the output end of the electric telescopic rod 304, and a locking tooth 305 surrounding the outer surface of the inner collar 301. The steel pipe is placed on the placement platform 302 so that the ends of the steel pipes are in contact. Then, the electric telescopic rod 304 is activated to push the U-shaped clamping piece 303 to move. The U-shaped clamping piece 303, in conjunction with the placement platform 302, firmly clamps the steel pipe. Afterward, a welding tool can be used to weld the upper surface of the joint of the steel pipe.
[0028] The flipping assembly 400 includes a gear groove 401 formed inside the base 100 and communicating with the inner side of the clamping seat 200, a gear 402 rotatably disposed inside the gear groove 401 and meshing with the locking teeth 305, a connecting rod 403 fixedly connected to the two gears 402, and a handle 404 connected to the outer end of the connecting rod 403. After the upper surface is welded, the handle 404 can be rotated to drive the connecting rod 403 to rotate, and in turn drive the gears 402 on both sides and the clamping assembly 300 to rotate synchronously. At this time, the two steel pipes also flip synchronously, flipping the lower surface up, so that personnel can weld the flipped lower surface.
[0029] In this embodiment, preferably, the surface of the placement platform 302 is provided with a U-shaped placement groove, and a rubber pad is provided inside the placement groove to improve the clamping stability of the steel pipe by the placement platform 302 and the U-shaped clamping piece 303.
[0030] In this embodiment, preferably, the flipping assembly 400 further includes an end groove 405 formed on one side of the base 100, a handle 404 placed inside the end groove 405, and a pull ring fixed to the outer end of the handle 404. By rotating the handle 404, the connecting rod 403 is driven to rotate.
[0031] In this embodiment, preferably, the flipping assembly 400 further includes a locking rod 406 fixed to the inner wall of the end groove 405 and a locking groove 407 opened on the inner side of the handle 404 and adapted to the locking rod 406. The handle 404 and the outer end of the connecting rod 403 are elastically telescopically connected. There are two locking grooves 407, which are distributed vertically. Under normal conditions, the locking rod 406 is engaged with one of the locking grooves 407 to limit the movement and prevent the steel pipe from flipping during welding. When flipping is required, the handle 404 is pulled outward to release its connection with the locking rod 406, and the flipping can be performed. After flipping 180 degrees, the locking rod 406 is aligned with the other locking groove 407, and the two are inserted to limit the flipped steel pipe again.
[0032] In this embodiment, preferably, a power supply component 500 is provided on the surface of the base 100. The power supply component 500 includes a power source 501 disposed on the top surface of the base 100 and a spiral wire 502 connected to the power source 501. One end of the spiral wire 502 is connected to the electric telescopic rod 304. The power source 501 can supply power to the electric telescopic rod 304. The spiral wire 502 is elastic and can adapt to the flipping of the clamping component 300.
[0033] In this embodiment, preferably, the power supply component 500 further includes a limiting piece 503, which is fixed to one end surface of the clamping seat 200. The spiral wire 502 passes through the limiting piece 503 to limit the spiral wire 502.
[0034] In this embodiment, preferably, a receiving tray 600 is provided on the top surface of the base 100 between the clamping seats 200 on both sides to collect the debris generated during the welding process and prevent the debris from falling directly onto the base 100. Support legs 700 are symmetrically fixed on both sides of the bottom of the base 100 to provide support.
[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A combined stainless steel pipe fitting welding auxiliary fixing device, characterized in that: include Base (100) and clamping seats (200) symmetrically distributed on both sides of the top surface of the base (100); The clamping assembly (300) includes an inner collar (301) rotatably disposed inside the clamping seat (200), a placement platform (302) fixed inside the inner collar (301), an electric telescopic rod (304) fixed inside the inner collar (301), a U-shaped clamping piece (303) connected to the output end of the electric telescopic rod (304), and a locking tooth (305) surrounding the outer surface of the inner collar (301). The flipping assembly (400) includes a gear groove (401) opened inside the base (100) and communicating with the inside of the clamping seat (200), a gear (402) rotatably disposed inside the gear groove (401) and meshing with the cleat (305), a connecting rod (403) fixedly connected to the two gears (402), and a handle (404) connected to the outer end of the connecting rod (403).
2. The combined stainless steel pipe welding auxiliary fixing device according to claim 1, characterized in that: The surface of the placement platform (302) is provided with a U-shaped placement groove, and a rubber pad is provided on the inner side of the placement groove.
3. The combined stainless steel pipe fitting welding auxiliary fixing device according to claim 2, characterized in that: The flipping assembly (400) also includes an end groove (405) formed on one side of the base (100), the handle (404) is placed inside the end groove (405), and a pull ring is fixed to the outer end of the handle (404).
4. The combined stainless steel pipe fitting welding auxiliary fixing device according to claim 3, characterized in that: The flipping assembly (400) also includes a locking rod (406) fixed to the inner wall of the end groove (405) and a locking groove (407) opened on the inner side of the handle (404) and adapted to the locking rod (406). The handle (404) and the outer end of the connecting rod (403) are elastically telescopically connected.
5. The combined stainless steel pipe fitting welding auxiliary fixing device according to claim 4, characterized in that: The base (100) is provided with a power supply assembly (500), which includes a power source (501) disposed on the top surface of the base (100) and a spiral wire (502) connected to the power source (501). One end of the spiral wire (502) is connected to the electric telescopic rod (304).
6. The combined stainless steel pipe fitting welding auxiliary fixing device according to claim 5, characterized in that: The power supply assembly (500) also includes a limiting piece (503), which is fixed to one end surface of the clamping base (200), and the spiral wire (502) passes through the limiting piece (503).
7. The combined stainless steel pipe fitting welding auxiliary fixing device according to claim 6, characterized in that: The top surface of the base (100) is provided with a receiving tray (600) between the clamping seats (200) on both sides, and the bottom sides of the base (100) are symmetrically fixed with support legs (700).