Welding pre-fixing auxiliary device

Abstract

The utility model relates to the technical field of heat exchanger processing, and discloses a welding pre-fixing auxiliary device which comprises a base, an end socket limiting seat is arranged in the middle of the top end of the base in a clamped mode, a circular containing groove corresponding to an end socket in size is formed in the middle of the end socket limiting seat, and detachable mounting frames are arranged on the two sides of the top end of the base. A pipeline limiting seat is arranged between the two mounting frames in a sliding mode, the pipeline limiting seat is located above the end socket limiting seat, and a circular limiting groove corresponding to a pipeline in size is formed in the middle of the pipeline limiting seat; the position of a heat exchanger end socket can be limited through the arranged end socket limiting seat, the position of a heat exchanger inlet pipeline can be limited through the arranged pipeline limiting seat, and therefore the end socket and the inlet pipeline can be preliminarily connected and preliminarily shaped through spot welding, cooperation of two workers is not needed, and the working efficiency is improved. And use of workers is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger processing, in particular to a welding pre-fixing auxiliary device. Background Technique

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger; heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, food and others. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, reboilers, etc., and are widely used; between the inlet pipe of the heat exchanger head and the head, corresponding fittings are often prefabricated, and then preliminarily shaped by spot welding.

[0003] However, since the heat exchanger head is elliptical in shape and its connection with the inlet pipe is elliptical, it is easy to cause the position of the inlet pipe to shift. Therefore, during the preliminary shaping process, two workers are often required to cooperate to complete the corresponding work, which affects the processing efficiency of the heat exchanger. Content of the Utility Model

[0004] The purpose of the utility model is to provide a welding pre-fixing auxiliary device, which has the effect that a single person can weld and improves work efficiency.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a welding pre-fixing auxiliary device, including a base, a head limiting seat is snap-fitted in the middle of the top of the base, a circular placement groove corresponding to the size of the head is provided in the middle of the head limiting seat, detachable mounting frames are provided on both sides of the top of the base, a pipe limiting seat is slidably arranged between the two mounting frames, the pipe limiting seat is located above the head limiting seat, a circular limiting groove corresponding to the size of the pipe is provided in the middle of the pipe limiting seat, and the axis of the limiting groove and the placement groove is on the same straight line.

[0006] A further setting of the utility model is: anti-slip feet are provided at the bottom of the base, and suction cups are provided at the bottom of the anti-slip feet.

[0007] A further setting of the utility model is: a clamping block is provided at the top of the base, a positioning seat is provided at the bottom of the side of the head limiting seat, and a clamping groove that is snap-fitted with the clamping block is provided on the surface of the positioning seat.

[0008] A further setting of the utility model is: a mounting seat is provided at the bottom of the mounting frame, the mounting seat is installed on both sides of the top of the base, and the mounting seat is connected to the base by mounting screws.

[0009] A further setting of the present utility model is that fixing columns are provided on both sides of the pipeline limiting seat. A fixing seat is provided at one end of the fixing column close to the pipeline limiting seat. The inner side of the fixing seat is arc-shaped and fits the outer side of the pipeline limiting seat. Moreover, the fixing seat is connected to the pipeline limiting seat by fixing screws.

[0010] A further setting of the present utility model is that a positioning screw rod is provided at one end of the fixing column away from the pipeline limiting seat, and a positioning groove for the positioning screw rod to move up and down is provided on the side surface of the mounting frame.

[0011] A further setting of the present utility model is that two limiting nuts are threadedly arranged on the surface of the positioning screw rod, and the two limiting nuts are respectively located on both sides of the positioning groove.

[0012] In summary, the present utility model has the following beneficial effects: The present utility model can limit the position of the heat exchanger head through the provided head limiting seat, and can limit the position of the heat exchanger inlet pipeline through the provided pipeline limiting seat, so that the head and the inlet pipeline can be initially connected and preliminarily shaped by spot welding. It does not require the cooperation of two workers, reduces the use of workers, and improves the processing efficiency; the height of the pipeline limiting seat can be flexibly adjusted according to actual needs, and does not interfere with the removal of the head and the inlet pipeline after shaping. At the same time, each structure of the device is set to be detachable, can be disassembled when not in use, does not occupy space, and is convenient to assemble. Description of the Drawings

[0013] Figure 1 is one of the three-dimensional structure diagrams of the present utility model;

[0014] Figure 2 is the second three-dimensional structure diagram of the present utility model;

[0015] Figure 3 is the third three-dimensional structure diagram of the present utility model;

[0016] Figure 4 is the structural diagram of the head limiting seat of the present utility model;

[0017] Figure 5 is the structural diagram of the pipeline limiting seat of the present utility model;

[0018] Figure 6 is of the present utility model Figure 5 enlarged structural diagram at position A.

[0019] In the figure: 1. Base; 101. Anti-slip feet; 102. Clamping block; 2. Head limiting seat; 201. Positioning seat; 202. Card slot; 3. Mounting frame; 301. Positioning slot; 302. Mounting seat; 303. Mounting screw; 4. Pipe limiting seat; 5. Fixed column; 501. Fixed seat; 502. Fixed screw; 503. Positioning screw rod; 504. Limiting nut. Detailed implementation mode

[0020] The following will further describe the present invention in conjunction with the drawings in the embodiments of the present invention.

[0021] Please refer to Figures 1 to 6 , in the embodiment of the present invention, a welding pre-fixing auxiliary device includes a base 1. Anti-slip feet 101 are provided at the bottom end of the base 1 to stably support the base 1. And a suction cup is provided at the bottom end of the anti-slip feet 101 to adsorb to the desktop to prevent the base 1 from sliding and affecting subsequent welding work. A head limiting seat 2 is snap-fitted in the middle of the top end of the base 1. A circular placement groove corresponding to the size of the head is provided in the middle of the head limiting seat 2 to limit the position of the heat exchanger head. Removable mounting frames 3 are provided on both sides of the top end of the base 1. A pipe limiting seat 4 is slidably provided between the two mounting frames 3. The pipe limiting seat 4 is located above the head limiting seat 2. A circular limiting groove corresponding to the size of the pipe is provided in the middle of the pipe limiting seat 4. The position of the heat exchanger inlet pipe is limited through the limiting groove, so that the end face of the heat exchanger head is fitted with the end of the inlet pipe. And the axes of the limiting groove and the placement groove are on the same straight line, so that the center of the heat exchanger head can coincide with the center line of the inlet pipe, improving the accuracy of assembly;

[0022] In this embodiment, preferably, a clamping block 102 is provided at the top end of the base 1, a positioning seat 201 is provided at the bottom of the side of the head limiting seat 2, and a card slot 202 that is snap-fitted with the clamping block 102 is provided on the surface of the positioning seat 201. The position of the head limiting seat 2 can be limited through the snap-fitting between the clamping block 102 and the card slot 202, and it is convenient for disassembly and assembly;

[0023] In this embodiment, preferably, a mounting seat 302 is provided at the bottom end of the mounting frame 3. The mounting seat 302 is mounted on both sides of the top end of the base 1, and the mounting seat 302 is connected to the base 1 through mounting screws 303, which is convenient for quickly disassembling and assembling the mounting frame 3;

[0024] In this embodiment, preferably, fixed columns 5 are provided on both sides of the pipe limiting seat 4. A fixed seat 501 is provided at one end of the fixed column 5 close to the pipe limiting seat 4. The inner side of the fixed seat 501 is set to be arc-shaped and fits with the outer side of the pipe limiting seat 4. And the fixed seat 501 is connected to the pipe limiting seat 4 through a fixed screw 502, which is convenient for quickly disassembling and assembling the pipe limiting seat 4;

[0025] In this embodiment, preferably, a positioning screw 503 is provided at one end of the fixed column 5 away from the pipe limiting seat 4. A positioning groove 301 for the positioning screw 503 to move up and down is provided on the side surface of the mounting frame 3. Two limit nuts 504 are provided on the surface of the positioning screw 503, and the two limit nuts 504 are respectively located on both sides of the positioning groove 301. The position of the fixed column 5 can be limited by the thread fit between the positioning screw 503 and the limit nuts 504, so that it has a certain damping force when moving up and down and will not move automatically under the action of gravity.

[0026] During use, first, the head limiting seat 2 is installed at the middle of the top end of the base 1 through the cooperation between the clamping block 102 and the clamping groove 202. Then, the mounting frame 3 is installed on both sides of the top end of the base 1 through the mounting screws 303, and the fixed column 5 is installed inside the corresponding mounting frame 3. Then, the pipe limiting seat 4 is installed between the two fixed columns 5 through the fixing screws 502, and the fixed column 5 is limited by the limit nuts 504 and the positioning screw 503, so that it has a certain damping force when moving up and down and will not move automatically under the action of gravity, thereby adjusting the height of the pipe limiting seat 4 to correspond to the heat exchanger inlet pipe.

[0027] Then, the heat exchanger head is placed in the placement groove of the head limiting seat 2 to limit the position of the heat exchanger head, and the heat exchanger pipe is inserted into the limiting groove of the pipe limiting seat 4 to limit the position of the heat exchanger pipe, so that the end of the heat exchanger pipe is attached to the elliptical end face of the heat exchanger head. The staff performs electric welding on the connection between the heat exchanger head and the inlet pipe to make it initially shaped.

[0028] After the heat exchanger head and the inlet pipe are shaped, the pipe limiting seat 4 is moved to the top of the mounting frame 3, and then the shaped object can be taken out.

[0029] The above is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A welding pre-fixing auxiliary device, comprising a base (1), characterized in that: A head stop seat (2) is provided in the middle of the top of the base (1), a circular placement groove corresponding to the size of the head is provided in the middle of the head stop seat (2), detachable mounting frames (3) are provided on both sides of the top of the base (1), a pipe stop seat (4) is slidably provided between the two mounting frames (3), the pipe stop seat (4) is located above the head stop seat (2), a circular stop groove corresponding to the size of the pipe is provided in the middle of the pipe stop seat (4), and the axis of the stop groove and the placement groove are located in the same straight line.

2. The welding pre-fixing auxiliary device according to claim 1 is characterized in that: The bottom end of the base (1) is provided with an anti-skid support foot (101), and the bottom end of the anti-skid support foot (101) is provided with a suction cup.

3. The welding pre-fixing auxiliary device according to claim 1 is characterized in that: A clamping block (102) is provided at the top of the base (1), a positioning seat (201) is provided at the bottom of the side of the head limiting seat (2), and a clamping groove (202) that is engaged with the clamping block (102) is provided on the surface of the positioning seat (201).

4. The welding pre-fixing auxiliary device according to claim 1 is characterized in that: A mounting seat (302) is provided at the bottom end of the mounting frame (3), and the mounting seat (302) is mounted on both sides of the top end of the base (1), and the mounting seat (302) is connected to the base (1) via mounting screws (303).

5. The welding pre-fixing auxiliary device according to claim 1, characterized in that: Both sides of the pipeline limit seat (4) are provided with fixing columns (5), and one end of the fixing column (5) close to the pipeline limit seat (4) is provided with a fixing seat (501), the inner side of the fixing seat (501) is arranged in an arc shape and fits with the outer side of the pipeline limit seat (4), and the fixing seat (501) is connected to the pipeline limit seat (4) via a fixing screw (502).

6. The welding pre-fixing auxiliary device according to claim 5, characterized in that: A positioning screw (503) is provided at one end of the fixing column (5) away from the pipeline limiting seat (4), and a positioning groove (301) is provided on the side of the mounting frame (3) to enable the positioning screw (503) to move up and down.

7. The welding pre-fixing auxiliary device according to claim 6, characterized in that: The surface thread of the positioning screw (503) is provided with two limiting nuts (504), and the two limiting nuts (504) are respectively located on both sides of the positioning groove (301).

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