Welding tool for waist-drum-shaped high-voltage shielding case

Abstract

The utility model discloses a welding tool for a waist-drum-shaped high-voltage shielding case. The welding tool for the waist-drum-shaped high-voltage shielding case comprises a rack, a positioning block used for positioning a lower half piece is arranged on the top face of the rack, a clamping device is arranged on the outer side of the positioning block and comprises a lifting plate located below the positioning block, and the rack is provided with a reciprocating mechanism driving the lifting plate to move up and down. A plurality of connecting rods are arranged on the two sides of the lifting plate, one ends of the connecting rods are in pivot joint with the lifting plate, the other ends of the connecting rods are in pivot joint with vertical rods, guide blocks are arranged in the middles of the vertical rods, guide grooves for the guide blocks to slide are formed in the rack, clamping blocks are arranged on the sides, extending to the positions above the positioning blocks, of the vertical rods, and arc-shaped faces are machined on the sides, facing the positioning blocks, of the clamping blocks. The splicing parts of the upper half piece and the lower half piece are extruded. The utility model solves the problems of labor waste and high production cost in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a welding tooling for a waist-drum-shaped high-voltage shielding cover. Background Art

[0002] As Figure 1 shown, it is a waist-drum-shaped high-voltage shielding cover. Since it cannot be directly formed, it has to be broken from the middle. First, the upper half a and the lower half b are respectively formed, and then the two are welded together to obtain the waist-drum-shaped high-voltage shielding cover. When the welder is performing the welding tooling, one hand holds the welding torch and the other hand holds the welding wire, and it is impossible to stabilize the spliced upper and lower halves. An auxiliary worker is also needed. However, after the welder spot-welds several places at the splicing part of the upper and lower halves with the help of the auxiliary worker, the upper and lower halves can be pre-fixed together. At this time, the auxiliary worker loses his function, and the welder still needs a long time for full welding, which is bound to cause waste of labor and increase in production cost. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a welding tooling for a waist-drum-shaped high-voltage shielding cover that can save labor and reduce production costs.

[0004] To achieve the above purpose, the technical solution adopted by the welding tooling for the waist-drum-shaped high-voltage shielding cover of the utility model is as follows:

[0005] A welding tooling for a waist-drum-shaped high-voltage shielding cover includes a frame. A positioning block for positioning the lower half is arranged on the top surface of the frame. A clamping device is arranged outside the positioning block. The clamping device includes a lifting plate located below the positioning block. The frame is provided with a reciprocating mechanism for driving the lifting plate to move up and down. A number of connecting rods are arranged on both sides of the lifting plate. One end of the connecting rod is pivotally connected to the lifting plate, and the other end is pivotally connected to a vertical rod. A guiding block is arranged in the middle of the vertical rod. The frame is provided with a guiding groove for the guiding block to slide. One side of the vertical rod extending above the positioning block is provided with a clamping block. The side of the clamping block facing the positioning block is processed into an arc surface for squeezing the splicing part of the upper and lower halves.

[0006] Preferably, the reciprocating mechanism is a cylinder, and the telescopic end of the cylinder is fixedly connected to the lifting plate through a chuck.

[0007] Preferably, a clamping groove for inserting the vertical rod is opened on the side of the clamping block facing away from the positioning block.

[0008] Preferably, the clamping block is made of a polymer material.

[0009] Preferably, the positioning block includes a bottom plate. A first convex platform for supporting the lower half is arranged on the top surface of the bottom plate. A second convex platform for inserting into the through hole of the lower half is arranged on the top surface of the first convex platform, and the contour of the second convex platform matches the contour of the through hole of the lower half.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The lower half piece is positioned on the frame through the positioning block. After the upper half piece and the lower half piece are spliced and aligned, the upper and lower half pieces are clamped and stabilized by the clamping device to replace the auxiliary personnel, thus saving labor and reducing production costs. Description of the Drawings

[0012] Figure 1 is a schematic structural view of a waist-drum-shaped high-voltage shielding cover;

[0013] Figure 2 is a schematic structural view of the welding tooling for the waist-drum-shaped high-voltage shielding cover of the utility model;

[0014] Figure 3 is a schematic structural view of the clamping device;

[0015] Figure 4 is a schematic structural view of the positioning block;

[0016] Figure 5 is a schematic structural view of the clamping block.

[0017] Wherein, a is the upper half piece, b is the lower half piece, b1 is the through hole, 1 is the frame, 11 is the guide groove, 2 is the positioning block, 21 is the bottom plate, 22 is the first boss, 23 is the second boss, 3 is the clamping device, 31 is the lifting plate, 32 is the reciprocating mechanism, 33 is the chuck, 34 is the connecting rod, 35 is the vertical rod, 351 is the guide block, 36 is the clamping block, 361 is the arc surface, 362 is the clamping groove. Detailed Embodiments

[0018] The following further clarifies the utility model in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not to limit the scope of the utility model. After reading the utility model, various equivalent modifications made by those skilled in the art to the utility model fall within the scope defined by the appended claims of this application.

[0019] Such as Figure 2-5As shown in the figure, a welding tooling for a waist-drum-shaped high-voltage shielding cover includes a frame 1. A positioning block 2 for positioning the lower half is installed on the top surface of the frame. The positioning block is made of nylon plate. The positioning block includes a bottom plate 21. A first convex platform 22 for supporting the lower half is integrally formed on the top surface of the bottom plate. A second convex platform 23 inserted into the through-hole b1 of the lower half is integrally formed on the top surface of the first convex platform. The contour of the second convex platform matches the contour of the through-hole of the lower half. A clamping device 3 is arranged outside the positioning block. The clamping device includes a lifting plate 31 located below the positioning block. The frame is equipped with a reciprocating mechanism 32 for driving the lifting plate to move up and down. The reciprocating mechanism is a cylinder. The telescopic end of the cylinder is fixedly connected to the lifting plate through a chuck 33. Two connecting rods 34 are arranged on each side of the lifting plate. One end of the connecting rod is pivotally connected to the lifting plate, and the other end is pivotally connected to a vertical rod 35. A guide block 351 is fixedly connected to the middle of the vertical rod. A guide groove 11 for the guide block to slide is opened on the frame. A clamping block 36 is installed on the side of the vertical rod extending above the positioning block. The clamping block is made of a polymer material, specifically polyurethane material, to avoid scratching the upper and lower halves. An arc surface 361 is machined on the side of the clamping block facing the positioning block for squeezing the splicing part of the upper and lower halves. A clamping groove 362 for inserting the vertical rod is opened on the side of the clamping block facing away from the positioning block. The clamping groove cooperates with the two side edges of the vertical rod to improve the installation accuracy of the clamping block, so as to meet the needs of the special shape of the waist-drum-shaped high-voltage shielding cover.

[0020] The specific working process and principle of the present utility model: First, install the lower half on the positioning block. During installation, the through-hole of the lower half can be sleeved on the outside of the second convex platform. Then, splice the upper half on the top of the lower half. After the opposite edges of the upper and lower halves are aligned, start the cylinder. The telescopic rod of the cylinder retracts, driving the lifting plate to move downward. The lifting plate drives the two vertical rods on both sides to approach each other through the connecting rods. The two clamping blocks squeeze the splicing part of the upper and lower halves for fixation. At this time, the welding operator can perform multiple spot welding pre-fixations. After the pre-fixation is completed, start the cylinder again. The telescopic rod of the cylinder extends, driving the lifting plate to move upward. The lifting plate drives the two vertical rods on both sides to move away from each other through the connecting rods. The two clamping blocks leave the upper and lower halves, and then full welding work can be carried out. The operation of the present utility model is simple and can be operated by one person, saving labor and reducing production costs. In addition, only the clamping blocks and part of the vertical rods of the clamping device are exposed outside, which maximally avoids occupying the top space of the frame and facilitates the welding work of the welding operator.

Claims

1. A welding tooling for a waist drum-shaped high-voltage shielding cover, including a frame, and a positioning block for positioning the lower half piece is arranged on the top surface of the frame, and it is characterized in that: A clamping device is arranged on the outer side of the positioning block. The clamping device includes a lifting plate located below the positioning block. The machine frame is provided with a reciprocating mechanism for driving the lifting plate to move up and down. A number of connecting rods are arranged on both sides of the lifting plate. One end of the connecting rod is pivotally connected to the lifting plate, and the other end is pivotally connected to a vertical rod. A guiding block is arranged in the middle of the vertical rod. The machine frame is provided with a guiding groove for the guiding block to slide. A clamping block is arranged on one side of the vertical rod extending above the positioning block. An arc surface is machined on the side of the clamping block facing the positioning block for squeezing the splicing part of the upper and lower half pieces.

2. The welding tooling for the waist-drum-shaped high-voltage shielding cover according to claim 1, characterized in that: The reciprocating mechanism is a cylinder, and the telescopic end of the cylinder is fixedly connected to the lifting plate through a chuck.

3. The welding tooling for the waist-drum-shaped high-voltage shielding cover according to claim 1, characterized in that: A clamping groove for inserting the vertical rod is arranged on the side of the clamping block facing away from the positioning block.

4. The welding tooling for the waist-drum-shaped high-voltage shielding cover according to claim 3, characterized in that: The clamping block is made of a polymer material.

5. The welding tooling for the waist-drum-shaped high-voltage shielding cover according to claim 1, characterized in that: The positioning block includes a bottom plate. A first convex platform for supporting the lower half piece is arranged on the top surface of the bottom plate. A second convex platform for inserting into the through hole of the lower half piece is arranged on the top surface of the first convex platform, and the contour of the second convex platform matches the contour of the through hole of the lower half piece.

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