A positioning tool for processing transformer end insulation parts

Abstract

The present invention provides a positioning tool for processing transformer end insulation parts. The positioning tool comprises multiple adjustment components, evenly distributed around the circumference of a base frame. The base frame is provided with mounting ends for mounting the adjustment components and positioning ends for securing the insulation parts. Each adjustment component can be adjusted from the mounting end toward the positioning end. Compared with related technologies, the positioning tool provided by the present invention has low manufacturing costs, requires no mold, and is highly versatile. Only locking bolts need to be adjusted for different helical surfaces of insulation parts.

Description

Technical Field

[0001] The invention relates to a positioning tool for processing transformer end insulation parts. Background Art

[0002] At present, in the field of end surface processing of end insulators for railway wheel traction transformers, different spiral surfaces A are provided according to different vehicle specifications (such as Figure 1 As shown). The insulating part is made of multiple layers of rectangular trapezoidal cardboard of different thicknesses bonded together into a cylindrical shape. Therefore, the end surface is uneven and needs to be turned to make it flat. The end surface processed by turning is the processing surface B. The traditional processing method is to set a mold 1' (such as Figure 2 As shown in FIG, the end face of the paving 1′ matches the spiral surface A of the insulating member 3, and the two are tightly pressed together during installation. This positioning method requires different pavings for different spiral surfaces of insulating members, which has high manufacturing costs and low versatility. Summary of the Invention

[0003] The purpose of the present invention is to provide a positioning tool for processing transformer end insulation parts, eliminating the template and improving versatility.

[0004] The technical solution of the present invention is: a positioning tool for processing transformer end insulation parts fixes the transformer end insulation parts on the base frame of a lathe, including multiple adjustment components, and the multiple adjustment components are evenly distributed on the base frame in a circle; the base frame is provided with a mounting end for installing the adjustment components and a positioning end for fixing the insulation parts; each of the adjustment components can be adjusted to the positioning end respectively through the mounting end.

[0005] In the above solution, the insulating member is positioned by each individually provided and individually adjustable adjustment assembly, so as to achieve a change in the spiral surface adapted to different insulating members, thereby improving versatility and flexibility.

[0006] In order to achieve the flexibility and randomness of the adjustment of the adjustment component, a plurality of mounting seats evenly distributed around the circumference are provided on the mounting end of the base frame. The plurality of mounting seats protrude along the outer circumferential surface of the base frame, and the adjustment component is installed in a one-to-one correspondence with the mounting seats.

[0007] Preferably, the adjustment assembly includes a locking bolt and a nut, the locking bolt is screwed together with the base frame and locked by the nut; the screw rod of the locking bolt extends toward the positioning end.

[0008] By adjusting the bolt to abut against the changing spiral surface, the flexibility of the positioning fixture is increased, and the weight thereof is reduced, making the applicability wider.

[0009] Preferably, it further comprises a plurality of clamps, which are evenly distributed on the outer circumference of the base frame and can be telescopically adjusted toward the positioning end.

[0010] The clamp and the adjustment assembly form a leaning and clamping function of the positioning tool, so that the insulating part with the spiral surface is positioned more accurately and clamped more firmly.

[0011] In order to ensure balanced force, a clamp is provided between every two adjustment components.

[0012] Preferably, the clamp includes a clamping block and a fastening bolt, the clamping block is provided with a waist-shaped hole extending from the mounting end to the positioning end, and the fastening bolt passes through the waist-shaped hole to fix the clamping block on the base frame.

[0013] In order to facilitate clamping, one end of the clamping block adjacent to the positioning end is a trapezoidal structure, with the short side of the trapezoidal structure pointing to the positioning end.

[0014] Compared with the related art, the present invention has the following beneficial effects:

[0015] 1. Use adjustment components (locking bolts) to replace the template, reducing the weight of the tooling by more than 30%;

[0016] Second, the operation is simple and the product changeover cycle is short. You only need to adjust the length and position of the bolts;

[0017] 3. Low manufacturing cost, no need for a mold, strong versatility, and only the locking bolt needs to be adjusted for the spiral surface of different insulating parts;

[0018] 4. It can be well used in the processing of traction transformer end insulation parts of rail locomotives, meeting the requirements of various models of products, effectively shortening the manufacturing cycle and reducing the initial investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the transformer end insulation;

[0020] Figure 2 The figure is a schematic diagram of the installation structure of the currently used positioning tool and base;

[0021] Figure 3 A schematic diagram of the installation structure of the positioning tool, base and insulating member for processing transformer end insulating members provided by the present invention;

[0022] Figure 4 for Figure 3 Left side view of .

[0023] In the accompanying drawings, 1-positioning tooling, 11-adjusting assembly, 111-locking bolt, 112-nut, 12-clamp, 121-clamping block, 122-waist-shaped hole, 123-fastening bolt, 2-base, 21-mounting end, 22-positioning end, 3-insulating part, A-spiral surface, B-processing surface, 1'-backing template. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0025] like Figure 3 、 4 As shown, the positioning tool 1 for processing transformer end insulation parts provided in this embodiment fixes the transformer end insulation part 3 on the base frame 2 of the lathe.

[0026] The base frame 2 includes a mounting end 21 at one end thereof, a positioning end 22 at the other end thereof, and a mounting seat 23 at the mounting end 21. In this embodiment, the number of the mounting seats 23 is 7, which protrude along the outer circumference of the base frame 2 and are evenly distributed along the outer circumference of the base frame 2 (e.g., Figure 4 shown).

[0027] The positioning fixture 1 includes an adjustment component 11 and a fixture 12. The number of the adjustment components 11 in this embodiment is 7 (eg Figure 4 ), corresponding one-to-one with the mounting seat 23. The adjustment assembly 11 includes a locking bolt 111 and a nut 112. The locking bolt 111 is threadedly engaged with the mounting seat 23. Tightening the locking bolt 111 causes it to extend or retract toward the positioning end 22. Once the position is determined, the nut 112 secures and locks the position.

[0028] One clamp 12 is provided between every two adjustment components 11. The clamp 12 is provided on the outer circumferential surface of the base frame 2. It includes a clamping block 121, a waist-shaped hole 122 provided on the clamping block 121, and a fastening bolt 123 that passes through the waist-shaped hole 122 to fix the clamping block 121 to the base frame 2. The waist-shaped hole 122 extends from the mounting end 21 to the positioning end 22. That is, the clamp 12 can be displaced and adjusted toward the positioning end 22 according to the change of the spiral surface of the clamping of the insulating part. In order to facilitate clamping, the end of the clamping block 121 adjacent to the positioning end 22 is a trapezoidal structure, and the short side of the trapezoidal structure points to the positioning end 22.

[0029] like Figure 3 As shown, during use, the helical surface A of the insulating member 3 is inserted through the positioning end 22 of the base frame 2 and installed on the base frame 2. The locking bolts 111 are adjusted according to the changes in the helical surface A, with the screws of the locking bolts 111 at different positions abutting against the helical surface A, and the nuts are then tightened. Simultaneously, the position of the clamping block 121 is adjusted to clamp it against the helical surface A of the insulating member 3. This completes the positioning of the insulating member 3, allowing for end-face turning of the machining surface B of the insulating member 3.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A positioning tool for processing transformer end insulation parts, fixing the transformer end insulation part (3) on a base frame (2) of a lathe, characterized in that: The invention comprises a plurality of adjusting components (11) and a plurality of clamps (12), wherein the plurality of adjusting components (11) are uniformly distributed on the base frame (2) in a circular manner; the base frame (2) is provided with a mounting end (21) for mounting the adjusting components (11) and a positioning end (22) for fixing the insulating member (3); each of the adjusting components (11) can be adjusted toward the positioning end (22) via the mounting end (21); the plurality of clamps (12) are uniformly distributed on the outer circumference of the base frame (2) and can be adjusted telescopically toward the positioning end (22); the spiral surface A of the insulating member (3) is inserted into the base frame (2) from the positioning end (22) of the base frame (2) and mounted on the base frame (2); A plurality of mounting seats (23) uniformly distributed around the circumference are provided on the mounting end (21) of the base frame (2), and the plurality of mounting seats (23) protrude along the outer circumferential surface of the base frame (2), and the adjustment assembly (11) is mounted in a one-to-one correspondence with the mounting seats (23); the adjustment assembly (11) comprises a locking bolt (111) and a nut (112), the locking bolt (111) is screw-fitted with the base frame (2) and is locked by the nut (112); the screw of the locking bolt (111) extends toward the positioning end (22); According to the change of the spiral surface A, the locking bolts (111) are adjusted respectively, the screws of the locking bolts (111) at different positions are abutted against the spiral surface A, and then the nuts are tightened.

2. The positioning tool for processing transformer end insulation parts according to claim 1, characterized in that: One clamp (12) is provided between every two adjustment components (11).

3. The positioning tool for processing transformer end insulation parts according to claim 1, characterized in that: The clamp (12) includes a clamping block (121) and a fastening bolt (123). The clamping block (121) is provided with a waist-shaped hole (122) extending from the mounting end (21) to the positioning end (22). The fastening bolt (123) passes through the waist-shaped hole (122) to fix the clamping block (121) to the base frame (2).

4. The positioning tool for processing transformer end insulation parts according to claim 3, characterized in that: One end of the clamping block (121) adjacent to the positioning end (22) is a trapezoidal structure, with the short side of the trapezoidal structure pointing towards the positioning end (22).

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