Welding tool for vacuum corrugated pipe

Abstract

The utility model relates to a welding tool for a vacuum corrugated pipe, which comprises a working table, a fixed seat is arranged on the working table, a supporting assembly used for placing and welding a welding ring flange is arranged on the fixed seat, a cross rod used for placing a corrugated pipe to be welded is arranged on the working table, and a water spraying pipe used for spraying water to the supporting assembly for cooling is arranged on the working table. A clamping assembly used for clamping the welding ring is arranged on the workbench, and the end, away from the supporting assembly, of the water spraying pipe is connected with a water pump. The tool has the effect of preventing the tool from generating thermal deformation due to welding heating to influence the welding quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding tools, in particular to a welding tool for a vacuum bellows. BACKGROUND

[0002] The vacuum bellows is usually made of metal or non-metal materials, and its main structure includes a bellows body, a connecting flange or a joint, etc. The bellows body is composed of a series of corrugated thin-walled metal pipes or plastic pipes, and these corrugations can increase the flexibility and stretchability of the pipes. During the welding process of the bellows and the port flange, the flange and the bellows need to be fixed and then welded.

[0003] A corrugated pipe welding device is disclosed in Chinese Patent No. CN215615960U, which fixes the welding ring and the corrugated pipe by means of a first clamp and a second clamp. The second clamp has a clamping piece, and the chuck on the clamping piece can drive the corrugated pipe and the welding ring to be clamped and connected, thereby positioning the corrugated pipe.

[0004] With respect to the above-mentioned related technology, a large amount of heat will be generated during long-term welding work. If the tool for fixing the corrugated pipe and the welding ring flange cannot effectively dissipate heat, it may be deformed due to thermal expansion. This deformation will further affect the positioning effect and welding quality of the corrugated pipe. CONTENT OF THE UTILITY MODEL

[0005] In order to prevent the tool from being deformed due to heat generated during long-term welding, the present application provides a welding tool for a vacuum bellows.

[0006] The welding tool for a vacuum bellows provided by the present application adopts the following technical solution:

[0007] A welding tool for a vacuum bellows, comprising a workbench, a fixing seat is provided on the workbench, a support assembly for placing a welding ring flange and welding is provided on the fixing seat, a crossbar for placing a to-be-welded corrugated pipe is provided on the workbench, a watering pipe for watering and cooling the support assembly is provided on the workbench, a clamping assembly for clamping the welding ring is provided on the workbench, and the end of the watering pipe away from the support assembly is connected to a water pump.

[0008] By adopting the above technical solution, during welding, the welding ring flange is supported by the support assembly, and the to-be-welded corrugated pipe is placed on the crossbar. The to-be-welded corrugated pipe is moved to align with the welding ring flange and then welded. The heat generated during the welding process will cause the support assembly to be deformed, thereby affecting the welding quality. After a period of welding, the watering pipe is used to accelerate the heat dissipation of the support assembly, thereby reducing the possibility of thermal deformation and ensuring the welding quality.

[0009] Optionally, a drainage hole for draining water is formed in the workbench.

[0010] By adopting the technical scheme, the water flowing out of the sprinkling pipe cools the clamping tool and then flows to the workbench, and the water is drained through the drain hole on the workbench. The cooling and heat dissipation prevent the accumulation of cooling water from affecting normal work.

[0011] Optionally, the support assembly comprises a support frame, the support frame is rotationally connected with the fixing seat, one end of the support frame close to the fixing seat is provided with a convex ring, and the support frame is sleeved with a rubber ring.

[0012] By adopting the technical scheme, the welding ring flange is sleeved on the support frame, and one end of the welding ring flange abuts against the rubber ring, so that the friction between the welding ring flange and the support frame is increased. During welding, the support rod slowly rotates and drives the welding ring flange to rotate, preventing the welding ring flange from slipping off. The welding process is smoother, and the welding effect is guaranteed.

[0013] Optionally, a support is arranged along the length direction of the workbench, a rodless cylinder is arranged on the support, and a clamping assembly for clamping the to-be-welded corrugated pipe is arranged on the sliding block of the rodless cylinder.

[0014] By adopting the technical scheme, the rodless cylinder drives the clamping assembly to move, so that the to-be-welded corrugated pipe is moved close to the welding ring flange for welding, and the rodless cylinder can drive the clamping assembly to realize reciprocating motion. The automation process is realized, and the efficiency is improved.

[0015] Optionally, the clamping assembly comprises a driving cylinder, the driving cylinder is vertically arranged, and a clamping jaw is arranged at the bottom of the driving cylinder, and a piston rod of the driving cylinder is used to drive the clamping jaw to clamp.

[0016] By adopting the technical scheme, the piston rod of the driving cylinder is extended and retracted to drive the clamping jaw to open and close, so as to clamp and move the to-be-welded corrugated pipe. Manual clamping of the staff is not needed, the work efficiency is improved, and the staff is prevented from being too close to the welding position, so that the safety is guaranteed.

[0017] Optionally, a motor is arranged on the fixing seat, and the motor is connected with the support frame.

[0018] By adopting the technical scheme, the support frame can slowly rotate by the motor, and the speed is controlled to be uniform, so as to prevent defects such as lack of welding caused by too fast speed.

[0019] Optionally, a fixing ring for fixing the sprinkling pipe is arranged on the fixing seat, a screw is threadedly connected with the side wall of the fixing ring, and the bottom of the screw abuts against the pipe wall of the sprinkling pipe.

[0020] By adopting the technical scheme, the sprinkling pipe is inserted into the fixing ring, and then the bolt is screwed, so that the bolt fixes the sprinkling pipe on the fixing seat, thereby improving the stability of the sprinkling pipe. When the sprinkling pipe needs to be replaced and disassembled, the sprinkling pipe can be taken down only by rotating the bolt, and the operation is simple and convenient.

[0021] Optionally, a water tank for collecting water is arranged under the workbench, and the sprinkling pipe is communicated with the water tank.

[0022] By adopting the technical scheme, the cooling water flows into the water tank through the drain hole, and the water in the water tank can be repeatedly used for cooling water. The cooling water is recycled, and the water resource is also recycled.

[0023] To sum up, the present application has at least one of the following beneficial technical effects:

[0024] 1. By arranging the fixing frame, the sprinkling pipe and the support frame, the welding frame can place the welding ring flange and the to-be-welded corrugated pipe and be used for welding. After a period of welding, the temperature rises. The sprinkling pipe has a sprinkling and cooling function, which ensures the welding efficiency and quality.

[0025] 2. By arranging the rodless cylinder, the driving cylinder and the clamping jaw, automatic clamping and positioning of the to-be-welded corrugated pipe are realized, and the welding precision and efficiency are improved. At the same time, the driving cylinder drives the clamping jaw to open and close clamping, so as to effectively fix the to-be-welded corrugated pipe, improve the position stability of the corrugated pipe in the welding process, and further improve the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the present application.

[0027] Figure 2 is an enlarged view of the fixing ring structure in the embodiment of the present application.

[0028] Figure 3 is a whole structure diagram in the embodiment of the present application.

[0029] Figure 4 is a structure diagram of the driving cylinder and the clamping jaw in the embodiment of the present application.

[0030] Explanation of reference signs: 1, workbench; 2, fixing seat; 3, sprinkling pipe; 4, fixing ring; 5, bolt; 6, support frame; 7, protruding ring; 8, drain hole; 9, cross rod; 10, vertical plate; 11, support; 12, rodless cylinder; 13, driving cylinder; 14, clamping jaw; 15, water tank; 16, motor. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a welding tool for a vacuum bellows. Figure 1 and Figure 2 The welding tool for the vacuum bellows comprises a workbench 1, and a fixed seat 2 is fixedly arranged on the workbench 1. A support assembly for placing and welding a welding ring flange is arranged on the fixed seat, a water spraying pipe 3 for spraying water to cool the support assembly is arranged on the workbench 1, and a fixed ring 4 for fixing the water spraying pipe 3 is fixedly arranged on the side wall of the fixed seat 2. A bolt 5 is threadedly connected to the side wall of the fixed ring 4. The stability of the water spraying pipe 3 is ensured by screwing the bolt 5 and abutting the bolt 5 against the side wall of the water spraying pipe 3, and the water spraying pipe 3 is conveniently disassembled. The problem of equipment deformation caused by heat generated during long-time welding is prevented by spraying water to cool.

[0033] Refer to Figure 1 and Figure 3 The support assembly comprises a support frame 6, and the water spraying pipe 3 is arranged towards the support frame. The support frame 6 is rotationally connected to the fixed seat 2, one end of the fixed seat 2 away from the support frame 6 is provided with a motor 16, the output shaft of the motor 16 is connected to the support frame 6, one end of the support frame 6 close to the fixed seat 2 is provided with a convex ring 7, and a rubber ring is arranged outside the support frame 6. During welding, the bottom of the welding ring flange is in contact with the convex ring 7, and the inner side of the welding ring flange is in contact with the rubber ring, so that the stability and anti-skid effect of the welding ring flange during placement are improved.

[0034] Refer to Figure 1 and Figure 3 In order to effectively drain the cooling water in the water spraying cooling process, a drainage hole 8 for draining water is formed on the workbench 1, the surrounding of the drainage hole 8 is funnel-shaped, and the top of the drainage hole is lower than the surface of the workbench 1. A horizontal rod 9 for placing the to-be-welded bellows is arranged on the workbench 1, the horizontal rod 9 is fixed to the workbench 1 through a vertical stand plate 10, and the horizontal rod is used for placing the to-be-welded bellows.

[0035] Refer to Figure 1 and Figure 4 A support 11 is arranged along the length direction of the workbench 1, a rodless cylinder 12 is arranged on the support 11, a clamping assembly for clamping the to-be-welded bellows is arranged on the sliding block of the rodless cylinder 12, the clamping assembly comprises a driving cylinder 13, the driving cylinder 13 is vertically arranged, and the bottom of the driving cylinder 13 is provided with a clamping jaw 14, the clamping jaw 14 comprises two symmetrically arranged clamping rods (not marked in the figure), and the end of the clamping rod is provided with an arc-shaped structure matched with the shape of the to-be-welded bellows. The piston rod of the driving cylinder 13 is used for driving the two clamping rods to open and close for clamping. After the to-be-welded bellows is clamped, the to-be-welded bellows is moved through the sliding block of the rodless cylinder 12, so that the automatic clamping and positioning of the to-be-welded bellows are realized, and the welding precision and efficiency are improved.

[0036] Refer to Figure 1In order to recycle the cooling water and save water resources, a water tank 15 is arranged under the workbench 1 to collect water, the water spraying pipe 3 is communicated with the water tank 15, and a water pump is arranged on one side of the water tank 15.

[0037] The implementation principle of the welding tool for the vacuum bellows is as follows: before welding, the welding ring flange is placed on the supporting rod, so that one end of the welding ring flange abuts against the convex ring 7. At the same time, the to-be-welded bellows is sleeved on the cross rod 9. The driving cylinder 13 controls the opening and closing of the clamping jaw 14 and clamps the to-be-welded bellows. At this time, the rodless cylinder 12 moves, driving the to-be-welded bellows to approach and abut against the welding ring flange. At this time, welding is performed. When the welding point of the to-be-welded bellows and the welding ring flange is welded, the motor rotates, driving the supporting frame to rotate slowly. At this time, the to-be-welded bellows can rotate with the welding ring flange. After one rotation, the welding is completed.

[0038] When the welding is performed for a period of time, in order to prevent the temperature of the supporting rod from being too high due to welding, causing deformation and affecting the welding effect. Start the water pump, the water spraying pipe 3 flows out cooling water, and the cooling water is splashed to the supporting rod, accelerating the heat dissipation of the supporting rod, reducing the possibility of deformation of the supporting rod due to heating, and ensuring the welding quality. At the same time, the cooling water flows into the water tank 15 along the drain groove 15.

[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A welding fixture for a vacuum bellows, comprising a worktable (1), characterized in that, The workbench (1) is provided with a fixed seat (2), the fixed seat (2) is provided with a support assembly for placing and welding the welding ring flange, the workbench (1) is provided with a cross bar (9) for placing the to-be-welded corrugated pipe, the workbench (1) is provided with a watering pipe (3) for watering and cooling the support assembly, the workbench (1) is provided with a clamping assembly for clamping the welding ring, and one end of the watering pipe (3) away from the support assembly is connected with a water pump.

2. A welding fixture for a vacuum bellows according to claim 1, characterized in that The workbench (1) is provided with a drainage hole (8) for drainage.

3. A welding fixture for a vacuum bellows as defined in claim 1, characterized in that The support assembly comprises a support frame (6), the support frame (6) is rotationally connected with the fixed seat (2), one end of the support frame (6) close to the fixed seat (2) is provided with a convex ring (7), and the support frame (6) is provided with a rubber ring.

4. A welding fixture for a vacuum bellows according to claim 3, wherein A support (11) is arranged along the length direction of the workbench (1), a rodless cylinder (12) is arranged on the support (11), and a clamping assembly for clamping the to-be-welded corrugated pipe is arranged on the slider of the rodless cylinder (12).

5. A welding fixture for a vacuum bellows as defined in claim 1, wherein The clamping assembly comprises a driving cylinder (13), the driving cylinder (13) is vertically arranged and provided with a clamping jaw (14) at the bottom, and the piston rod of the driving cylinder (13) is used for driving the clamping jaw (14) to clamp.

6. A welding fixture for a vacuum bellows according to claim 3, wherein The fixed seat (2) is provided with a motor (16), and the motor (16) is connected with the support frame (6).

7. A welding fixture for a vacuum bellows as defined in claim 1, wherein The fixed seat (2) is provided with a fixing ring (4) for fixing the watering pipe (3), the sidewall of the fixing ring (4) is threadedly connected with a bolt (5), and the bottom of the bolt (5) abuts against the pipe wall of the watering pipe (3).

8. A welding fixture for a vacuum bellows as defined in claim 1, characterized in that The workbench (1) is provided with a water tank (15) for collecting water, and the watering pipe (3) is communicated with the water tank (15). The workbench (1) is provided with a water tank (15) for collecting water, and the watering pipe (3) is communicated with the water tank (15).

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