A slip ring assembly welding point trimming tool

Abstract

A slip ring assembly welding point trimming tool comprises a base, a trimming blade, a square positioning block and a rectangular fixing plate. The center of the upper end of the base has a rectangular groove along the length direction, the top of one side of the rectangular groove has a horizontal positioning surface, and the other side protrudes upward and has a vertical positioning surface. The trimming blade and the rectangular fixing plate are placed in the rectangular groove, and the trimming blade is close to one side of the horizontal positioning surface. The rectangular fixing plate and the trimming blade are fixed tightly against the side wall of the rectangular groove by fastening screws. The right end of the top of the trimming blade is lower than the horizontal positioning surface, and the left end of the top is flush with the horizontal positioning surface. There are multiple cutting edges in the center of the top of the trimming blade, and the cutting edge height gradually rises from the right end to the left end; there is a circular groove in the center of the lower end face of the square positioning block and a vertical groove in the middle of the left end face. The vertical groove is arranged along the axial direction of the circular groove and passes through the circular groove. The square positioning block is placed above the rectangular groove, and its rear end face is in close contact with the vertical positioning surface, so that the vertical groove is located directly above the trimming blade.

Description

Technical Field

[0001] The invention belongs to the technical field of precision finishing of aerospace product components, and in particular relates to a slip ring component welding point finishing tool. Background Art

[0002] Slip ring assembly is a key component of the conductive device of aerospace products, consisting of slip ring and wire (see Figure 6 ), the wire is inserted into the lead hole on the inner side of the slip ring and fixed together by soldering. After the welding is completed, a flat or conical convex welding spot is formed on the end face of the slip ring away from one end of the wire. Since the gap of the slip ring component after assembly is only 0.3 mm, the convex welding spot is easy to form a short circuit. Therefore, the welding spot needs to be trimmed after the welding is completed to make the welding spot flush with the end face of the slip ring, and to ensure that the slip ring is flat and without deformation. Currently, a surgical blade is used to trim the welding spot of the slip ring component to scrape the convex part of the welding spot, which makes the slip ring easy to be scratched, and the scraping efficiency is low, the welding spot removal is uneven, and the consistency is difficult to ensure, which seriously affects the product quality of the slip ring component. Summary of the Invention

[0003] The invention provides a slip ring assembly welding point trimming tool to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by the present invention is: a slip ring assembly welding point trimming tool, comprising a base, a trimming blade, a square positioning block and a rectangular fixing plate, wherein the center of the upper end of the base is provided with a rectangular groove along the length direction, the top of one side of the rectangular groove is provided with a horizontal positioning surface, and the other side protrudes upward to have a vertical positioning surface, and a horizontal threaded hole is provided below the vertical positioning surface and passes through the rectangular groove; the trimming blade and the rectangular fixing plate are placed in the rectangular groove, and the trimming blade is close to one side of the horizontal positioning surface, and the inner end of the fastening screw installed in the horizontal threaded hole is extended into the rectangular groove and pressed against the rectangular fixing plate, so that the trimming blade is in close contact with the side wall of the rectangular groove; the right end of the top of the trimming blade is lower than the horizontal positioning surface, and the left end of the top is flush with the horizontal positioning surface, and the center of the top of the trimming blade is provided with multiple cutting edges, and the height of the cutting edges gradually rises from the right end to the left end;

[0005] The square positioning block has a circular groove in the center of the lower end face and a vertical groove in the middle of the left end face, and the vertical groove is arranged along the axial direction of the circular groove and passes through the circular groove. The square positioning block is placed above the rectangular groove, and its rear end face is in close contact with the vertical positioning surface, so that the vertical groove is located directly above the trimming blade; when the slip ring of the slip ring assembly is installed in the circular groove and the wire is located in the vertical groove, the protruding welding point at the tail of the wire is located directly above the trimming blade, pushing the square positioning block to be in close contact with the horizontal positioning surface and the vertical positioning surface and moving from right to left, and gradually cutting the protruding welding point through the cutting edge to make it flush with the end face of the slip ring.

[0006] The depth of the circular groove is less than or equal to the thickness of the slip ring.

[0007] A cutting groove is provided below the cutting edge.

[0008] The width of the cutting edge is greater than the maximum diameter of the welding spot.

[0009] There are six cutting edges, the first cutting edge protrudes from the horizontal positioning surface by 0.1 mm, the second cutting edge protrudes from the first cutting edge by 0.1 mm, the third cutting edge protrudes from the second cutting edge by 0.1 mm, the fourth cutting edge protrudes from the third cutting edge by 0.05 mm, the fifth cutting edge protrudes from the fourth cutting edge by 0.03 mm, and the sixth cutting edge protrudes from the fifth cutting edge by 0.01 mm.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention has a novel design, simple structure and accurate positioning, which greatly improves the efficiency of slip ring assembly weld trimming, while ensuring the uniformity and consistency of weld removal, solving the long-term problems of unreliable product quality and unguaranteed processing cycle of conductive devices in aerospace products.

[0012] 2. The dressing blade of the present invention has multiple gradually rising cutting edges, which not only greatly improves the dressing efficiency and realizes layer-by-layer cutting, but also reduces the amount of welds removed each time. The entire dressing process can ensure that the slip ring is flat and free of deformation, thereby ensuring the product quality of the slip ring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present invention;

[0014] Figure 2 yes Figure 1 Middle partial schematic diagram;

[0015] Figure 3 It is a schematic diagram of the base structure of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the dressing blade of the present invention;

[0017] Figure 5 This is a schematic diagram of the square positioning block structure of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the slip ring assembly of the present invention. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-6 The present invention is described in detail with specific embodiments.

[0020] A slip ring assembly welding point trimming tool, comprising a base 1, a trimming blade 2, a square positioning block 3 and a rectangular fixing plate 5, the upper center of the base 1 having a rectangular groove 1-1 along the length direction, the top of one side of the rectangular groove 1-1 having a horizontal positioning surface 1-2, and the other side protruding upward having a vertical positioning surface 1-3, and a horizontal threaded hole 1-4 passing through the rectangular groove 1-1 is provided below the vertical positioning surface 1-3; the trimming blade 2 and the rectangular fixing plate 5 are placed in the rectangular groove 1-1, and the trimming blade 2 is close to one side of the horizontal positioning surface 1-2, and the inner end of the fastening screw 4 installed in the horizontal threaded hole 1-4 extends into the rectangular groove 1-1 and presses against the rectangular fixing plate 5, so that the trimming blade 2 is tightly attached to the side wall of the rectangular groove 1-1; the right end of the top of the trimming blade 2 is lower than the horizontal positioning surface 1-2, and the left end of the top is flush with the horizontal positioning surface 1-2, the top center of the trimming blade 2 has multiple cutting edges 2-1, and the height of the cutting edges 2-1 gradually rises from the right end to the left end;

[0021] The square positioning block 3 has a circular groove 3-1 in the center of the lower end face and a vertical groove 3-2 in the middle of the left end face, and the vertical groove 3-2 is arranged along the axial direction of the circular groove 3-1 and passes through the circular groove 3-1. The square positioning block 3 is placed above the rectangular groove 1-1, and its rear end face is in close contact with the vertical positioning surface 1-3, so that the vertical groove 3-2 is located directly above the trimming blade 2; when the slip ring 6-1 of the slip ring assembly 6 is installed in the circular groove 3-1 and the wire 6-2 is located in the vertical groove 3-2, the protruding welding point 6-3 at the tail of the wire 6-2 is just located directly above the trimming blade 2, pushing the square positioning block 3 to move from right to left in close contact with the horizontal positioning surface 1-2 and the vertical positioning surface 1-3, and gradually cutting the protruding welding point 6-3 through the cutting edge 2-1 to make it flush with the end face of the slip ring 6-1.

[0022] In the above embodiment, the depth of the circular groove 3-1 is less than or equal to the thickness of the slip ring, so as to ensure that the welding point 6-3 protrudes below the circular groove 3-1.

[0023] In the above embodiment, a cutting groove 2-2 is provided below the cutting edge 2-1 to accommodate waste material cut during trimming.

[0024] In the above embodiment, the width of the cutting edge 2-1 is larger than the maximum diameter of the welding spot 6-3, so as to ensure that the cutting edge 2-1 can cover the welding spot 6-3 and prevent it from being exposed.

[0025] In the above embodiment, the cutting edges 2-1 are preferably provided with six, the first cutting edge protruding from the horizontal positioning surface 1-2 by 0.1mm, the second cutting edge protruding from the first cutting edge by 0.1mm, the third cutting edge protruding from the second cutting edge by 0.1mm, the fourth cutting edge protruding from the third cutting edge by 0.05mm, the fifth cutting edge protruding from the fourth cutting edge by 0.03mm, and the sixth cutting edge protruding from the fifth cutting edge by 0.01mm. By gradually raising the six cutting edges, layer-by-layer cutting is achieved, which not only greatly improves the trimming efficiency but also reduces the amount of welds removed each time. The entire trimming process can ensure that the slip ring is flat and free of deformation, thereby ensuring the product quality of the slip ring assembly.

[0026] When in use, remove the square positioning block 3, install the slip ring 6-1 of the slip ring assembly 6 in the circular groove 3-1, and make the wire 6-2 located in the vertical groove 3-2, then place the square positioning block 3 with the slip ring assembly 6 installed above the rectangular groove 1-1. At this time, the protruding welding point 6-3 at the tail of the wire 6-2 is just located above the trimming blade 2. Push the square positioning block 3 to move from right to left against the horizontal positioning surface 1-2 and the vertical positioning surface 1-3, and gradually cut the protruding welding point 6-3 through the cutting edge 2-1 to make it flush with the end face of the slip ring 6-1. The slip ring assembly welding point trimming is completed, and the slip ring assembly can be removed.

[0027] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A slip ring assembly weld point trimming tool, characterized by: The invention comprises a base (1), a trimming blade (2), a square positioning block (3) and a rectangular fixing plate (5), wherein the center of the upper end of the base (1) is provided with a rectangular groove (1-1) along the length direction, the top of one side of the rectangular groove (1-1) is provided with a horizontal positioning surface (1-2), and the other side protrudes upward and is provided with a vertical positioning surface (1-3), and a horizontal threaded hole (1-4) passing through the rectangular groove (1-1) is provided below the vertical positioning surface (1-3); the trimming blade (2) and the rectangular fixing plate (5) are placed in the rectangular groove (1-1), and the trimming blade (2) and the rectangular fixing plate (5) are placed in the rectangular groove (1-1), and the trimming blade (2) and the rectangular fixing plate (5) are placed in the rectangular groove (1-1), and the trimming blade (2) and the rectangular fixing plate (5) are provided with a horizontal threaded hole (1-4) passing through the rectangular groove (1-1). The blade (2) is close to one side of the horizontal positioning surface (1-2), and the inner end of the fastening screw (4) installed in the horizontal threaded hole (1-4) extends into the rectangular groove (1-1) and is tightly pressed against the rectangular fixing plate (5), so that the trimming blade (2) is tightly attached to the side wall of the rectangular groove (1-1); the right end of the top of the trimming blade (2) is lower than the horizontal positioning surface (1-2), and the left end of the top is flush with the horizontal positioning surface (1-2); the center of the top of the trimming blade (2) has multiple cutting edges (2-1), and the height of the cutting edges (2-1) gradually rises from the right end to the left end; The square positioning block (3) has a circular groove (3-1) in the center of the lower end face and a vertical groove (3-2) in the middle of the left end face, and the vertical groove (3-2) is arranged along the axial direction of the circular groove (3-1) and is connected to the circular groove (3-1). The square positioning block (3) is placed above the rectangular groove (1-1), and its rear end face is in close contact with the vertical positioning surface (1-3), so that the vertical groove (3-2) is located directly above the trimming blade (2); when the slip ring assembly When the slip ring (6-1) of the component (6) is installed in the circular groove (3-1) and the conductor (6-2) is located in the vertical groove (3-2), the protruding solder joint (6-3) at the tail of the conductor (6-2) is located just above the trimming blade (2), and the square positioning block (3) is pushed to move from right to left against the horizontal positioning surface (1-2) and the vertical positioning surface (1-3), and the protruding solder joint (6-3) is gradually cut through the cutting edge (2-1) to make it flush with the end face of the slip ring (6-1); The depth of the circular groove (3-1) is less than or equal to the thickness of the slip ring (6-1).

2. The slip ring assembly weld point repair tool according to claim 1, characterized in that: A cutting groove (2-2) is provided below the cutting edge (2-1).

3. The slip ring assembly weld point repair tool according to claim 1, characterized in that: The width of the cutting edge (2-1) is greater than the maximum diameter of the welding spot (6-3).

4. The slip ring assembly weld point repair tool according to claim 1, characterized in that: The cutting edges (2-1) are provided with six, the first cutting edge protrudes from the horizontal positioning surface (1-2) by 0.1 mm, the second cutting edge protrudes from the first cutting edge by 0.1 mm, the third cutting edge protrudes from the second cutting edge by 0.1 mm, the fourth cutting edge protrudes from the third cutting edge by 0.05 mm, the fifth cutting edge protrudes from the fourth cutting edge by 0.03 mm, and the sixth cutting edge protrudes from the fifth cutting edge by 0.01 mm.

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