Rapid low-temperature welding equipment for stainless steel pump pull rod and stainless steel single-head bolt

Abstract

The utility model relates to rapid low-temperature welding equipment for a stainless steel pumping pull rod and a stainless steel single-head bolt, which comprises a lower electrode holder and an upper electrode block, a positioning groove for fixing the stainless steel pumping pull rod is arranged on the lower electrode holder, and a positioning seat for positioning the stainless steel single-head bolt is arranged on one side of the positioning groove. According to the rapid low-temperature welding equipment for the stainless steel pumping pull rod and the stainless steel single-head bolt, when welding is needed, the stainless steel pumping pull rod is placed on the positioning groove of the lower electrode base and makes contact with the lower electrode base, then the stainless steel single-head bolt is placed on the positioning base and attached to the end of the stainless steel pumping pull rod, and the stainless steel pumping pull rod and the stainless steel single-head bolt are welded. The upper electrode block is pressed downwards, the stainless steel single-head bolt is fixed through the arc-shaped groove, the stainless steel single-head bolt is centered, then the stainless steel single-head bolt and the stainless steel single-head bolt are instantly welded together rapidly through large current, and the speed is higher than the speed that two workpieces need to be firmly fixed through argon arc welding and then subjected to full-length welding or direct-acting straight seam welding in a split-edge welding mode through manual work in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel pull rod welding technology for pump bodies, specifically relating to a rapid low-temperature welding device for stainless steel pump pull rods and stainless steel single-headed bolts. Background Technology

[0002] The deep well pump consists of a pump body and a motor. The pump body is composed of several stacked impeller assemblies. The pump body has an outlet section and an inlet section, and is connected to the motor via the inlet section. A main shaft connecting each stage of the impeller assemblies is located within the pump body, and the motor's output shaft is connected to the main shaft. Stainless steel tie bars are installed around the periphery of each stage of the impeller assembly. The upper end of the tie bar is connected to the outlet section, and the lower end is connected to the inlet section. These tie bars are used to tighten the stacked impeller assemblies.

[0003] Currently, the welding of stainless steel tie rods and screws is done manually using handheld welding machines. However, manual welding usually involves first manually tack welding the two workpieces together with argon arc welding before using full welding or straight-seam welding to weld them side by side, which is relatively slow. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a rapid low-temperature welding device for stainless steel pump rods and stainless steel single-ended bolts, which can weld the two together instantly to increase efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a rapid low-temperature welding device for stainless steel pump rods and stainless steel single-ended bolts, including a lower electrode seat and an upper electrode block. The lower electrode seat is provided with a positioning groove for fixing the stainless steel pump rod, and a positioning seat for positioning the stainless steel single-ended bolt is provided on one side of the positioning groove. The upper electrode block is provided with an arc-shaped groove that cooperates with the stainless steel single-ended bolt.

[0006] The positioning seat is provided with a guide groove, the upper electrode block is provided with a slider that slides in cooperation with the guide groove, and the guide groove is provided with an elastic element that abuts against the slider.

[0007] The positioning groove has two symmetrical groove walls with telescopic holes. A connecting column is slidably installed in the telescopic hole. A clamping plate is provided on the telescopic hole facing the other side of the connecting column. A spring is provided in the telescopic hole and the spring is set to abut against the connecting column.

[0008] The clamping surface of the clamping plate is fitted with an insulating rubber pad.

[0009] The lower electrode holder is provided with a base, and four support components are provided below the base.

[0010] The support assembly includes a hollow tube, a support column is internally threaded to the hollow tube, a support base is movably mounted at the bottom of the support column, the support base has a movable cavity, a slot is provided above the movable cavity in the support base, and a locking block is provided at the bottom of the support column to cooperate with the slot.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model discloses a rapid low-temperature welding device for stainless steel pump rods and stainless steel single-ended bolts. When welding, the stainless steel pump rod is placed on the positioning groove of the lower electrode seat and in contact with the lower electrode seat. Then, the stainless steel single-ended bolt is placed on the positioning seat and attached to the end of the stainless steel pump rod. The upper electrode block is then pressed down, and its arc groove fixes the stainless steel single-ended bolt, making the stainless steel single-ended bolt centered. Then, a large current is quickly passed through to weld the two together instantly. This is faster than the original method of manually tack welding the two workpieces with argon arc welding first and then using full welding or straight-seam welding to weld the edges separately. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the welding equipment of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the upper electrode block of this utility model;

[0015] Figure 3 This is a side view of the welding equipment of this utility model.

[0016] Figure 4 This is an enlarged structural diagram of point B in the welding equipment diagram of this utility model;

[0017] Figure 5 This is a top view of the welding equipment of this utility model;

[0018] Figure 6 This is an enlarged structural schematic diagram of point A in the top view of the welding equipment of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the support component of this utility model.

[0020] The markings in the diagram are: 1. Lower electrode holder; 2. Upper electrode block; 3. Positioning groove; 4. Positioning seat; 5. Arc groove; 6. Guide slide; 7. Slider; 8. Telescopic hole; 9. Connecting column; 10. Clamping plate; 11. Spring; 12. Base; 13. Support assembly; 14. Hollow tube; 15. Support column; 16. Support seat; 17. Movable cavity; 18. Slot; 19. Locking block. Detailed Implementation

[0021] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0022] like Figures 1-7 As shown, this embodiment provides a rapid low-temperature welding device for stainless steel pump rods and stainless steel single-ended bolts, including a lower electrode seat 1 and an upper electrode block 2. Both the lower electrode seat 1 and the upper electrode block 2 are equipped with connecting lines for connection to the welding host, and these connecting lines are respectively connected to the negative and positive output terminals of the welding host. The lower electrode seat 1 has a positioning groove 3 for fixing the stainless steel pump rod, and a positioning seat 4 for positioning the stainless steel single-ended bolt is provided on one side of the positioning groove 3. The upper electrode block 2 has an arc-shaped groove 5 that mates with the stainless steel single-ended bolt. Specifically, the positioning seat 4 has a guide groove 6, and the upper electrode block 2 has a slider 7 that slides in cooperation with the guide groove 6. An elastic element that abuts against the slider 7 is provided within the guide groove 6. The cooperation between the guide groove 6 and the slider 7 makes the lifting and lowering of the upper electrode block 2 more stable. When welding is to be performed, the stainless steel pump rod is placed on the positioning groove 3 of the lower electrode seat 1 and in contact with the lower electrode seat 1. Then, the stainless steel single-ended bolt is placed on the positioning seat 4 and attached to the end of the stainless steel pump rod. Then, the upper electrode block 2 is pressed down, and its arc groove 5 fixes the stainless steel single-ended bolt, so that the stainless steel single-ended bolt is centered. Then, a large current is quickly passed through to weld the two together instantly. This is faster than the original method of manually tack welding the two workpieces with argon arc welding first and then using full welding or straight-seam welding to weld the edges separately.

[0023] Furthermore, the two symmetrical groove walls of the positioning groove 3 are respectively provided with telescopic holes 8. A connecting post 9 is slidably installed in the telescopic hole 8. A clamping plate 10 is provided on the telescopic hole 8 facing the connecting post 9 on the other side. A spring 11 is provided in the telescopic hole 8, and the spring 11 is positioned to abut against the connecting post 9. Specifically, the clamping surface of the clamping plate 10 is attached to an insulating rubber pad. Through the cooperation of the connecting post 9, the telescopic hole 8, and the spring 11, the clamping plate 10 can adaptively move and clamp according to the stainless steel pump rod, thus adapting to stainless steel pump rods of different widths.

[0024] Furthermore, the lower electrode holder 1 is provided with a base 12, and four support components 13 are provided below the base 12. Specifically, the support component 13 includes a hollow tube 14, a support column 15 is internally threaded to the hollow tube 14, a support seat 16 is movably installed at the bottom of the support column 15, a movable cavity 17 is provided inside the support seat 16, a slot 18 is provided above the movable cavity 17 inside the support seat 16, and a locking block 19 that cooperates with the slot 18 is provided at the bottom of the support column 15. The device can be placed in different locations via the base 12 for easy operation. It is equipped with a hollow tube 14, which can lift the base 12 to raise the support column 15, so that the locking block 19 of the support column 15 is placed in the slot 18 to form a fixed position. The support column 15 can be rotated and adjusted in the hollow tube 14 by rotating the support base 16. When the base 12 is laid flat, the support column 15 can be pressed down by its own weight, so that the locking block 19 is disengaged from the slot 18 and placed in the movable cavity 17, thus preventing the support column 15 from rotating when the support base 16 is rotated.

[0025] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A stainless steel pump rod and stainless steel single head bolt rapid low temperature welding device, characterized in that: It includes a lower electrode base and an upper electrode block. The lower electrode base is provided with a positioning groove for fixing a stainless steel pump rod. A positioning seat for positioning a stainless steel single-headed bolt is provided on one side of the positioning groove. The upper electrode block is provided with an arc-shaped groove that mates with the stainless steel single-headed bolt.

2. The apparatus for rapid low temperature welding of stainless steel pump rod and stainless steel stud according to claim 1, wherein: The positioning seat is provided with a guide groove, the upper electrode block is provided with a slider that slides in cooperation with the guide groove, and the guide groove is provided with an elastic element that abuts against the slider.

3. The apparatus for rapid low temperature welding of stainless steel pump rod and stainless steel stud as claimed in claim 1 wherein: The positioning groove has two symmetrical groove walls with telescopic holes. A connecting column is slidably installed in the telescopic hole. A clamping plate is provided on the telescopic hole facing the other side of the connecting column. A spring is provided in the telescopic hole and the spring is set to abut against the connecting column.

4. The apparatus for rapid low temperature welding of stainless steel pump rod and stainless steel stud as claimed in claim 3 wherein: The clamping surface of the clamping plate is fitted with an insulating rubber pad.

5. The apparatus for rapid low temperature welding of stainless steel pump rod and stainless steel stud as claimed in claim 1 wherein: The lower electrode holder is provided with a base, and four support components are provided below the base.

6. The rapid low-temperature welding equipment for stainless steel pump tie rods and stainless steel single-ended bolts according to claim 5, characterized in that: The support assembly includes a hollow tube, a support column is internally threaded to the hollow tube, a support base is movably mounted at the bottom of the support column, the support base has a movable cavity, a slot is provided above the movable cavity in the support base, and a locking block is provided at the bottom of the support column to cooperate with the slot.

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