Preheating welding table

Abstract

The utility model relates to a preheating welding station which comprises a box body, a fixing plate and a starting switch are arranged on the box body, a guide rail, welding guns and an ignition needle are arranged on the fixing plate, a movable supporting plate is arranged on the guide rail, the movable supporting plate is used for placing workpieces, the welding guns are arranged on the two sides of the guide rail, the welding guns are connected with a fuel gas assembly, and the fuel gas assembly is connected with the ignition needle. The ignition needle is used for igniting the welding gun, and the ignition needle and the starting switch are electrically connected with a control box. A workpiece to be preheated is placed on the movable supporting plate, the workpiece is externally heated in a circulating mode through the welding guns on the two sides of the guide rail, independent preheating of the workpiece is achieved, the workpiece preheating time in the welding work circulation is shortened, the consistency of the workpiece preheating temperature and the welding temperature is guaranteed, and the workpiece welding quality is improved. The preheating welding table can preheat a plurality of workpieces at the same time, so that the working efficiency is improved; the movable supporting plate moves on the guide rail, the position of the workpiece is adjusted, the preheating effect on the workpiece is guaranteed, and the preheating uniformity of the workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a preheating welding table. Background Art

[0002] In the prior art, the number of welding gun heads for preheating the workpiece is two, or the workpiece is preheated by the flame reflected during welding. Since there are too many weld joints on the workpiece, adding a preheating gun head alone will increase the difficulty of operation. During welding, if the weld joint of the workpiece is not melted, it is necessary to re-weld. If the workpiece is preheated twice at the same time, it is easy to cause the preheated workpiece to overburn. If the preheated workpiece is removed and re-fired alone, the temperature of the preheated workpiece has dropped in the next welding cycle and cannot reach the predetermined welding temperature, affecting the welding efficiency and welding quality of the workpiece. In addition, when the welding flange is preheated on the welding workbench at the same time, the preheating time of the preheated workpiece is synchronized with the welding time. The preheating of the small workpiece can reach the ideal welding preheating temperature. When the preheating time of the large workpiece is synchronized with the welding time, the preheating temperature of the workpiece cannot reach the ideal temperature. When the welding time is increased to synchronize the preheating state with the welding state, the pipeline is easily overburned due to the long heating time of the aluminum tube body. Utility Model Content

[0003] The utility model aims at solving the existing technical problems and provides a preheating soldering station.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a preheating soldering station, comprising a box body, a fixing plate and a starting switch being provided on the box body, a guide rail, a welding gun and an ignition needle being provided on the fixing plate, a movable support plate being provided on the guide rail, the movable support plate being used for placing a workpiece, a plurality of welding guns being arranged on both sides of the guide rail, the welding guns being connected to a gas assembly, the ignition needle being used for igniting the welding gun, and the ignition needle and the starting switch being electrically connected to a control box.

[0005] The beneficial effects of the utility model are as follows: the workpiece to be preheated is placed on the movable support plate, and the workpiece is subjected to cyclic external heating through the welding guns on both sides of the guide rail, so that the workpiece can be preheated independently, the preheating time of the workpiece in the welding work cycle is reduced, the consistency between the preheating temperature of the workpiece and the welding temperature is ensured, and the welding quality and welding efficiency of the workpiece are improved; the preheating welding table can preheat multiple workpieces at the same time, further improving the work efficiency; the movable support plate is dragged on the guide rail according to the volume and number of the workpieces, and the position of the workpiece is adjusted to ensure the preheating effect of the workpiece, so that the workpiece is heated evenly, and the welding quality of the workpiece is ensured.

[0006] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the utility model can also make the following improvements to the above technical solution:

[0007] Furthermore, the gas assembly includes a first gas inlet pipe, a fan and a venturi, the fan is connected with an air outlet and an air inlet, the air outlet and the first gas inlet pipe are connected with the venturi, and the venturi is connected with the welding gun through a mixed gas pipe.

[0008] The beneficial effect of adopting the above-mentioned further technical solution is that the air pressure is increased by the fan to ensure that the air and gas are mixed in the Venturi to achieve the best combustion ratio, so that the gas is fully burned and fuel is saved; by setting the Venturi structure, the gas and air are fully mixed, and the size of the welding gun flame can be adjusted to ensure the preheating effect of the workpiece.

[0009] Furthermore, the first gas inlet pipe is provided with a solenoid valve and a zero-pressure valve, and the solenoid valve and the zero-pressure valve are electrically connected to the control box.

[0010] The beneficial effect of adopting the above further technical solution is that the gas on and off is controlled by the solenoid valve, and the flow and pressure of the gas are controlled by setting a zero-pressure valve, thereby ensuring the balance and stability of the system during use.

[0011] Furthermore, the ignition needle is electrically connected to a timer, the welding gun is electrically connected to a relay, and the relay and the timer are electrically connected to the control box respectively.

[0012] The beneficial effect of adopting the above further technical solution is that the preheating time of different workpieces is controlled by the time relay, and the corresponding preheating time is adjusted according to the welding temperature of different workpieces to improve the welding efficiency and welding quality of the workpieces; the ignition time of the ignition needle is controlled by the delay device to ensure that the welding gun can be ignited normally.

[0013] Furthermore, it also includes a fire repair gun, and the second gas inlet pipe of the gas assembly is connected to the fire repair gun.

[0014] The beneficial effect of adopting the above further technical solution is that the preheating welding table can be used as a test welding table to verify the feasibility of welding new products with complex pipelines, thereby improving welding efficiency and convenience of use.

[0015] Furthermore, it also includes a bracket and a plurality of fixing blocks installed on the bracket, the bracket is installed on a fixing plate, and the welding gun is installed on the fixing blocks.

[0016] The beneficial effect of adopting the above further technical solution is that the position of the welding gun can be adjusted by adjusting the position of the fixing block on the bracket to ensure the preheating effect on the workpiece.

[0017] Furthermore, the cross section of the bracket is polygonal, and the fixing block is mounted on the bracket via a locking member.

[0018] The beneficial effect of adopting the above further technical solution is to ensure the stability and firmness of the welding gun installation, reduce the shaking of the welding gun, and ensure the preheating effect of the workpiece.

[0019] Furthermore, the cross section of the bracket is circular, and the fixing block is mounted on the bracket via a locking member.

[0020] The beneficial effect of adopting the above-mentioned further technical solution is that the fixed block can not only move along the bracket to adjust the position of the welding gun, but also rotate around the bracket to adjust the angle of the welding gun to meet the preheating requirements of different workpieces and further improve the preheating effect of the workpiece.

[0021] Furthermore, an operating rod is provided at the end of the movable support plate.

[0022] The beneficial effect of adopting the above further technical solution is that the movable support plate and the workpiece are dragged along the guide rail by the operating rod, so as to facilitate the preheating of subsequent workpieces and improve the preheating efficiency.

[0023] Furthermore, the fixing plate is installed on the box body through a plurality of support rods, and an accommodating space is formed between the fixing plate and the box body.

[0024] The beneficial effect of adopting the above further technical solution is that the gas pipeline is stored by providing a storage space to ensure the overall neatness and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the preheating soldering station of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure inside the preheating soldering station box of the utility model.

[0027] The accompanying drawings are marked as follows: 1. Box body; 2. Fixed plate; 3. Guide rail; 4. Movable support plate; 5. Operating lever; 6. Workpiece; 7. Welding gun; 8. Ignition needle; 9. Start switch; 10. Filling gun; 11. First gas inlet pipe; 12. Solenoid valve; 13. Zero pressure valve; 14. Fan; 15. Air outlet; 16. Air inlet; 17. Venturi; 18. Mixing gas pipe; 19. Control box; 20. Bracket; 21. Fixed block; 22. Second gas inlet pipe; 23. Support rod. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1 and Figure 2As shown, the utility model discloses a preheating soldering station, comprising a box body 1, on which a fixed plate 2 and a start switch 9 are provided, the fixed plate 2 is mounted on the box body 1 through a plurality of support rods 23, an accommodating space is formed between the fixed plate 2 and the box body 1, the fixed plate 2 is provided with a guide rail 3, a welding gun 7 and an ignition needle 8, the guide rail 3 extends along the length direction of the fixed plate 2, a movable support plate 4 is provided on the guide rail 3, an operating rod 5 is provided at the end of the movable support plate 4, which is convenient for dragging the movable support plate 4 along the guide rail 3, the movable support plate 4 is used to place a workpiece 6, and one, two or more workpieces 6 can be placed, a plurality of welding guns 7 are arranged on both sides of the guide rail 3, the welding gun 7 is connected to a gas assembly, the ignition needle 8 is used to ignite the welding gun 7, and the start switch 9 is electrically connected to a control box 19. After the start switch 9 is pressed, the start switch 9 transmits a signal to the control box 19, and the control box 19 controls the gas component to provide gas to the welding gun 7, and controls the ignition needle 8 to ignite the welding gun 7 to preheat the workpiece 6. The control is simple and reliable.

[0030] The gas assembly includes a first gas inlet pipe 11, a fan 14 and a venturi 17. The first gas inlet pipe 11 is provided with a solenoid valve 12 and a zero pressure valve 13. The solenoid valve 12 and the zero pressure valve 13 are electrically connected to the control box 19. The fan 14 is connected with an air outlet 15 and an air inlet 16. The first gas inlet pipe 11 and the air outlet 15 are respectively connected to the venturi 17. The venturi 17 is connected to the welding gun 7 through a mixed gas pipe 18. It is ensured that the welding gun 7 is provided with evenly mixed gas, the preheating effect of the welding gun 7 on the workpiece 6 is improved, and the safety of use is ensured.

[0031] Furthermore, in order to facilitate the control of the welding gun 7 , two groups of mixed gas pipes 18 are provided to provide fuel gas to the welding guns 7 on both sides of the guide rail 3 respectively.

[0032] In this embodiment, the preheating welding station includes a bracket 20 and a plurality of fixed blocks 21 mounted on the bracket 20, the bracket 20 includes a crossbar and vertical bars located at both ends of the crossbar, the bracket 20 is mounted on the fixed plate 2 through the vertical bars, the fixed blocks 21 are mounted on the crossbar, the number of the fixed blocks 21 corresponds to the number of welding guns 7, and the welding guns 7 are mounted on the fixed blocks 21. By adjusting the position of the fixed blocks 21 on the bracket 20, the position of the welding gun 7 can be adjusted to ensure the uniformity of preheating the workpiece 6 and the welding quality of the workpiece 6.

[0033] In this embodiment, the cross section of the bracket 20 is circular, and the fixing block 21 is mounted on the bracket 20 through a locking member. This not only fixes the welding gun 7 but also adjusts the angle of the welding gun 7, ensures the preheating effect on the workpiece 6, and improves the convenience of use.

[0034] The preheating welding station also includes a flash gun 10, and the second gas inlet pipe 22 of the gas assembly is connected to the flash gun 10. The flash gun 10 is a handheld flash gun, which can ignite the unlit welding gun 7 to ensure the preheating effect of the welding gun 7 on the workpiece 6; and can preheat and weld the newly developed products, verify the feasibility of welding new products, and improve the convenience and flexibility of welding tests of new products.

[0035] Optionally, the cross section of the bracket 20 is polygonal, such as a triangle, a quadrilateral, and a hexagon, and the fixing block 21 is installed on the bracket 20 through a locking member to ensure the firmness of the installation of the fixing block 21, with a simple structure and easy operation.

[0036] The working process of the utility model is as follows:

[0037] 1. Set the preheating time of the workpiece 6 through the time relay, and adjust the time delay to adjust the ignition time of the ignition needle 8;

[0038] 2. Press the start switch 9, the relay is closed, and the current passes through the two electrodes of the ignition needle 8 to generate an electric spark; at the same time, the solenoid valve 12 opens, and the gas passes through the first gas inlet pipe 11 and enters the zero pressure valve 13 through the solenoid valve 12, and finally enters the Venturi 17; the internal switch valve of the fan 14 opens the gas outlet 15, and the air enters the Venturi 17; the gas and air are mixed inside the Venturi 17, reach the welding gun 7 through the mixed gas pipe 18, and are ejected through the gun head;

[0039] 3. The mixed gas ejected from the welding gun 7 is ignited by the electric sparks generated by the two electrodes of the ignition needle 8, and the workpiece 6 begins to be preheated, and the time relay starts timing;

[0040] 4. After the time relay finishes timing, the preheating of workpiece 6 is completed.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A preheating soldering station, comprising a box (1), It is characterized in that The box body (1) is provided with a fixing plate (2) and a starting switch (9); the fixing plate (2) is provided with a guide rail (3), a welding gun (7) and an ignition needle (8); the guide rail (3) is provided with a movable support plate (4); the movable support plate (4) is used to place a workpiece (6); a plurality of welding guns (7) are arranged on both sides of the guide rail (3); the welding gun (7) is connected to a gas component; the ignition needle (8) is used to ignite the welding gun (7); the ignition needle (8) and the starting switch (9) are electrically connected to a control box (19).

2. The preheating soldering station according to claim 1, It is characterized in that The gas assembly comprises a first gas inlet pipe (11), a fan (14) and a venturi (17); the fan (14) is connected to a gas outlet (15) and a gas inlet (16); the gas outlet (15) and the first gas inlet pipe (11) are respectively connected to the venturi (17); and the venturi (17) is connected to the welding gun (7) via a mixed gas pipe (18).

3. The preheating soldering station according to claim 2, It is characterized in that The first gas inlet pipe (11) is provided with a solenoid valve (12) and a zero-pressure valve (13), and the solenoid valve (12) and the zero-pressure valve (13) are electrically connected to the control box (19).

4. The preheating soldering station according to claim 2 or 3, It is characterized in that The ignition needle (8) is electrically connected to a time delay device, the welding gun (7) is electrically connected to a relay, and the relay and the time delay device are electrically connected to the control box (19) respectively.

5. The preheating soldering station according to claim 1, It is characterized in that It also comprises a fire repair gun (10), and the second gas inlet pipe (22) of the gas assembly is connected to the fire repair gun (10).

6. The preheating soldering station according to claim 1, It is characterized in that It also comprises a bracket (20) and a plurality of fixing blocks (21) mounted on the bracket (20); the bracket (20) is mounted on a fixing plate (2), and the welding gun (7) is mounted on the fixing blocks (21).

7. The preheating soldering station according to claim 6, It is characterized in that The cross section of the bracket (20) is polygonal, and the fixing block (21) is mounted on the bracket (20) via a locking member.

8. The preheating soldering station according to claim 6, It is characterized in that The bracket (20) has a circular cross section, and the fixing block (21) is mounted on the bracket (20) via a locking member.

9. The preheating soldering station according to claim 1, It is characterized in that An operating rod (5) is provided at the end of the movable support plate (4).

10. The preheating soldering station according to claim 1, It is characterized in that The fixing plate (2) is mounted on the box body (1) via a plurality of support rods (23), and a receiving space is formed between the fixing plate (2) and the box body (1).

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