Special L-shaped electrode holder for taper pipe welding

Abstract

The utility model discloses a special L-shaped electrode holder for taper pipe welding, which comprises an upper electrode assembly and a lower electrode assembly, the upper electrode assembly comprises an upper electrode holder, an upper copper connecting rod and an upper electrode cap, the top end of the upper copper connecting rod is fixedly connected with the upper electrode holder, and the upper electrode cap is fixed at the bottom end of the upper copper connecting rod. The lower electrode assembly comprises a lower electrode holding rod, a lower copper connecting rod and a lower electrode cap, the bottom end of the lower copper connecting rod is fixedly connected with the lower electrode holding rod, the lower electrode cap is fixed to the bottom end of the lower copper connecting rod, the lower electrode holding rod is L-shaped, and copper pipes are arranged in the upper electrode holding rod and the lower electrode holding rod respectively. One end, close to the upper electrode cap and the lower electrode cap, of the copper pipe is respectively provided with a copper short pipe, the lower electrode holding rod is provided with a U-shaped positioning block, the U-shaped positioning block is rotatably arranged on the lower electrode holding rod, the cooling effect is good, the loss of the electrode can be reduced, the U-shaped positioning block is rotatably arranged on the fixed seat, and the electrode is convenient to grind.

Description

Technical Field

[0001] The utility model relates to the technical field of cone pipe welding equipment, in particular to an L-shaped electrode gripping rod special for cone pipe welding. Background Art

[0002] Existing cone tube welding electrode holder Figure 1 , Figure 2 As shown, it includes an upper electrode assembly and a lower electrode assembly, the upper electrode assembly includes an upper electrode gripper 1, and an upper electrode cap 3 is arranged at the bottom end of the upper electrode gripper 1, and the lower electrode assembly includes a lower electrode gripper 4, and a lower electrode cap is arranged at the top end of the lower electrode gripper 4. A cooling water pipe is arranged in the lower electrode gripper 4, and a cold water inlet 14 and a cold water outlet 15 of the cooling water pipe are respectively arranged outside the lower electrode gripper 4. A positioning block 21 is arranged on the lower electrode gripper 4, and the positioning block 21 is fixed on the lower electrode gripper 4 by a positioning pin 22. The existing cone tube welding electrode gripper has the following defects:

[0003] 1. The cooling water is too far away from the electrode, and the cooling effect is not good;

[0004] 2. Poor versatility, can only weld cones with a hole diameter less than 70 mm;

[0005] 3. The positioning adjustment is inconvenient and the adjustment range is small;

[0006] 4. When grinding the electrode, the positioning pin needs to be inserted and pulled out to rotate and position it, which is complicated to operate. Utility Model Content

[0007] In order to solve the problems mentioned in the above background technology that the cooling water of the existing cone tube welding electrode holder is too far away from the electrode, the cooling effect is poor, the positioning adjustment is inconvenient, the adjustment range is small and the operation is complicated, etc., the utility model provides an L-shaped electrode holder specially used for cone tube welding, including an upper electrode assembly and a lower electrode assembly, the upper electrode assembly includes an upper electrode holder, an upper copper connecting rod and an upper electrode cap, the top end of the upper copper connecting rod is fixedly connected to the upper electrode holder, and the upper electrode cap is fixed to the bottom end of the upper copper connecting rod, the lower electrode assembly includes a lower electrode holder, a lower copper connecting rod and a lower electrode cap, the bottom end of the lower copper connecting rod is fixedly connected to the lower electrode holder, and the lower electrode cap is fixed to the bottom end of the lower copper connecting rod, the lower electrode holder is configured to be L-shaped, copper tubes are respectively arranged in the upper electrode holder and the lower electrode holder, and copper short tubes are respectively arranged at one end of the copper tube close to the upper electrode cap and the lower electrode cap, and the two copper short tubes are respectively arranged in the upper copper connecting rod and the lower copper connecting rod, and a U-shaped positioning block is arranged on the lower electrode holder, and the U-shaped positioning block is rotatably mounted on the lower electrode holder.

[0008] The upper electrode holding rod and the lower electrode holding rod are respectively provided with a cooling water inlet and a cooling water outlet.

[0009] The upper electrode gripping rod is fixed on the upper electrode arm through the upper electrode arm pressing plate, and the lower electrode gripping rod is fixed on the lower electrode arm through the lower electrode arm pressing plate.

[0010] The upper electrode arm pressing plate is clamped with the upper electrode arm, and the adjacent end surfaces of the upper electrode arm pressing plate and the upper electrode arm are respectively provided with mounting grooves matched with the side surfaces of the upper electrode gripping rod shaft.

[0011] The U-shaped positioning block is arranged on the rotating assembly. The rotating assembly comprises a rotating rod and a positioning seat. The positioning seat is fixed on the lower electrode gripping rod.

[0012] A support is arranged at the top of the positioning seat, one end of the rotating rod is fixedly connected to the middle part of the U-shaped positioning block, and the other end of the rotating rod is rotatably mounted with the support through a pin shaft.

[0013] The beneficial effects brought by the technical solution provided by the embodiment of the utility model include at least:

[0014] 1. In the utility model, the copper short tube is arranged near the upper electrode cap and the lower electrode cap so that the distance between the cooling water and the welding point is reduced, the cooling effect is good, the loss of the electrode can be reduced, and the welding strength and stability of the product are effectively improved.

[0015] 2. The utility model is provided with a U-shaped positioning block which can be rotatably mounted on a fixed seat, so as to facilitate electrode grinding.

[0016] 3. The lower electrode rods in the utility model are designed to be L-shaped, which can weld cone tubes with larger apertures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0018] Figure 1 It is a schematic diagram of the prior art three-dimensional structure Figure 1 ;

[0019] Figure 2 It is a schematic diagram of the prior art three-dimensional structure Figure 2 ;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating component.

[0023] In the attached drawings, there are upper electrode gripper 1, upper copper connecting rod 2, upper electrode cap 3, lower electrode gripper 4, lower copper connecting rod 5, lower electrode cap 6, inner and outer cone assembly 7, copper tube 8, copper short tube 9, U-shaped positioning block 10, rotating rod 11, positioning seat 12, support 13, cooling water inlet 14, cooling water outlet 15, upper electrode arm pressure plate 16, upper electrode arm 17, lower electrode arm pressure plate 18, lower electrode arm 19, copper tube joint 20, positioning block 21, and positioning pin 22. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 3-5 As shown, the upper electrode assembly in the L-shaped electrode holder specially used for cone tube welding provided by the utility model includes an upper electrode holder 1, an upper copper connecting rod 2 and an upper electrode cap 3, and the lower electrode assembly includes a lower electrode holder 4, a lower copper connecting rod 5 and a lower electrode cap 6. The upper electrode cap 3 is fixed to the bottom end of the upper copper connecting rod 2, and the lower electrode cap 6 is fixed to the bottom end of the lower copper connecting rod 5. When welding, the small end face of the inner and outer cone assemblies 7 pressed together is put on the lower electrode cap 6, the U-shaped positioning block 10 positions the end of the cone tube, and the welding control button is started to weld.

[0026] The lower electrode gripping rod 4 of the utility model is arranged in an L-shape, so that a cone tube with a larger aperture can be welded.

[0027] Copper tubes 8 are respectively arranged in the upper electrode gripping rod 1 and the lower electrode gripping rod 4. Copper short tubes 9 are respectively arranged at one end of the copper tube 8 close to the upper electrode cap 3 and the lower electrode cap 6. The two copper short tubes 9 are respectively arranged in the upper copper connecting rod 2 and the lower copper connecting rod 5. The copper tube 8 and the copper short tubes 9 are connected to form an L-shaped cooling water circulation channel. The utility model arranges the copper short tube 9 for circulating cooling water at a position close to the welding point, so that the distance between the cooling water and the welding point is reduced, the cooling effect is good, the loss of the electrode can be reduced, and the welding strength and stability of the product are effectively improved.

[0028] A U-shaped positioning block 10 is provided on the lower electrode holding rod 4, and the U-shaped positioning block 10 is rotatably installed on the lower electrode holding rod 4. The U-shaped positioning block 10 is designed as a rotatable structure. When the electrode is ground, the U-shaped positioning block 10 can be rotated to the other side of the fixed seat to facilitate electrode grinding.

[0029] Optionally, the U-shaped positioning block 10 is arranged on a rotating component, and the rotating component includes a rotating rod 11 and a positioning seat 12. The positioning seat 12 is fixed on the lower electrode holding rod 4. A support 13 is arranged on the top of the positioning seat 12. One end of the rotating rod 11 is fixedly connected to the middle part of the U-shaped positioning block 10, and the other end of the rotating rod 11 is rotatably installed with the support 13 through a pin shaft. The rotating rod 11 rotates around the support 13 to complete the rotation of the U-shaped positioning block 10. The structure is simple and the operation is convenient.

[0030] A cooling water inlet 14 and a cooling water outlet 15 are respectively provided on the upper electrode grip 1 and the lower electrode grip 4. A copper pipe joint 20 is provided on the cooling water inlet. The copper pipe 8 is connected to an external cooling water device through the copper pipe joint 20. The cooling water device continuously delivers cooling water from the cooling water inlet 14 into the copper pipe 8 during the vertebral tube welding. The cooling water cools the welding point through the copper short pipe 9 and then flows out from the cooling water outlet 15.

[0031] In the utility model, the upper electrode arm pressing plate 16 is a fixing part of the upper electrode gripping rod 1, and the upper electrode gripping rod 1 is fixed to the upper electrode arm 17 through the upper electrode arm pressing plate 16; the lower electrode arm pressing plate 18 is a fixing part of the lower electrode gripping rod 4, and the lower electrode gripping rod 4 is fixed to the lower electrode arm 19 through the lower electrode arm pressing plate 18.

Claims

1. An L-shaped electrode holder for cone tube welding, characterized in that: It includes an upper electrode assembly and a lower electrode assembly. The upper electrode assembly includes an upper electrode grip, an upper copper connecting rod and an upper electrode cap. The top end of the upper copper connecting rod is fixedly connected to the upper electrode grip, and the upper electrode cap is fixed to the bottom end of the upper copper connecting rod. The lower electrode assembly includes a lower electrode grip, a lower copper connecting rod and a lower electrode cap. The bottom end of the lower copper connecting rod is fixedly connected to the lower electrode grip, and the lower electrode cap is fixed to the bottom end of the lower copper connecting rod. The lower electrode grip is configured to be L-shaped. Copper tubes are respectively arranged in the upper electrode grip and the lower electrode grip. Copper short tubes are respectively arranged at one end of the copper tube close to the upper electrode cap and the lower electrode cap. A U-shaped positioning block is arranged on the lower electrode grip, and the U-shaped positioning block is rotatably installed on the lower electrode grip.

2. The L-shaped electrode holder for cone pipe welding according to claim 1, characterized in that: The upper electrode holding rod and the lower electrode holding rod are respectively provided with a cooling water inlet and a cooling water outlet.

3. The L-shaped electrode holder for cone pipe welding according to claim 1, characterized in that: The upper electrode gripping rod is fixed on the upper electrode arm through the upper electrode arm pressing plate, and the lower electrode gripping rod is fixed on the lower electrode arm through the lower electrode arm pressing plate.

4. The L-shaped electrode holder for cone pipe welding according to claim 1, characterized in that: The U-shaped positioning block is arranged on the rotating assembly. The rotating assembly comprises a rotating rod and a positioning seat, and the positioning seat is fixed on the lower electrode gripping rod.

5. The L-shaped electrode holder for cone pipe welding according to claim 1, characterized in that: A support is arranged at the top of the positioning seat, one end of the rotating rod is fixedly connected to the middle part of the U-shaped positioning block, and the other end of the rotating rod is rotatably mounted with the support through a pin shaft.

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