Slip ring assembly welding spot finishing tool

Abstract

A sliding ring assembly welding spot finishing tool comprises a base, a finishing blade, a square positioning block and a rectangular fixing plate, a rectangular groove is formed in the center of the upper end of the base in the length direction, a horizontal positioning face is arranged at the top end of one side of the rectangular groove, and the other side of the rectangular groove protrudes upwards and then is provided with a vertical positioning face. The right end of the top of the trimming blade is lower than the horizontal positioning surface, the left end of the top of the trimming blade is flush with the horizontal positioning surface, a plurality of cutting edges are formed in the center of the top of the trimming blade, and the height of the cutting edges is gradually increased from the right end to the left end; a circular groove is formed in the center of the lower end face of the square positioning block, a vertical groove is formed in the middle of the left end face of the square positioning block, the vertical groove is formed in the axis direction of the circular groove and communicated with the circular groove, the square positioning block is placed above the rectangular groove, the rear end face of the square positioning block is tightly attached to the vertical positioning face, and the vertical groove is located over 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 conductor (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 protruding solder joint is formed on the end face of the slip ring away from one end of the wire. Since the gap of the slip ring assembly after assembly is only 0.3 mm, the protruding solder joint is easy to form a short circuit. Therefore, the solder joint needs to be trimmed after the welding is completed to make the solder joint flush with the end face of the slip ring, and to ensure that the slip ring is flat and without deformation. At present, the solder joint of the slip ring assembly is trimmed by scraping the protruding part of the solder joint with a surgical blade, which makes the slip ring easy to be scratched, and the scraping efficiency is low, the solder joint removal is uneven, and the consistency is difficult to ensure, which seriously affects the product quality of the slip ring assembly. 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 scheme 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 upper end center of the base has a rectangular groove along the length direction, the top end of one side of the rectangular groove has a horizontal positioning surface, and the other side protrudes upward to have a vertical positioning surface, and a horizontal threaded hole penetrating the rectangular groove is provided below the 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, 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 top center of the trimming blade has 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 penetrates 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 0.1mm, the second cutting edge protrudes from the first cutting edge by 0.1mm, the third cutting edge protrudes from the second cutting edge by 0.1mm, the fourth cutting edge protrudes from the third cutting edge by 0.05mm, the fifth cutting edge protrudes from the fourth cutting edge by 0.03mm, and the sixth cutting edge protrudes from the fifth cutting edge by 0.01mm.

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

[0011] 1. The present invention has novel design, simple structure and accurate positioning, which greatly improves the efficiency of slip ring assembly solder joint trimming, while ensuring the uniformity and consistency of solder joint removal, solving the problem of unreliable product quality and unguaranteed processing cycle of conductive devices of aerospace products that have long affected the industry.

[0012] 2. The dressing blade of the present invention has multiple gradually raised cutting edges, which not only greatly improves the dressing efficiency and realizes layer-by-layer cutting, but also reduces the amount of welding points 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 diagram of the structure 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 It is a schematic diagram of the structure of the square positioning block of the present invention;

[0018] Figure 6 It is a schematic diagram of the structure 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, wherein the upper center of the base 1 has a rectangular groove 1-1 along the length direction, the top of one side of the rectangular groove 1-1 has a horizontal positioning surface 1-2, and the other side protrudes upward to have a vertical positioning surface 1-3, and a horizontal threaded hole 1-4 penetrating 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 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, and the top center of the trimming blade 2 has a plurality of 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 located just 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 greater 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 to prevent exposed cutting.

[0025] In the above embodiment, the cutting edges 2-1 are preferably provided with six, the first cutting edge protrudes from the horizontal positioning surface by 1-20.1mm, the second cutting edge protrudes from the first cutting edge by 0.1mm, the third cutting edge protrudes from the second cutting edge by 0.1mm, the fourth cutting edge protrudes from the third cutting edge by 0.05mm, the fifth cutting edge protrudes from the fourth cutting edge by 0.03mm, and the sixth cutting edge protrudes from the fifth cutting edge by 0.01mm. By gradually lifting 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, and then place the square positioning block 3 with the installed slip ring assembly 6 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, and the square positioning block 3 is pushed to move from right to left close to the horizontal positioning surface 1-2 and the vertical positioning surface 1-3, and the protruding welding point 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, and 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 welding point trimming tool, characterized in that: The invention comprises a base (1), a trimming blade (2), a square positioning block (3) and a rectangular fixing plate (5); the base (1) has a rectangular groove (1-1) at the center of the upper end along the length direction; the top of one side of the rectangular groove (1-1) has a horizontal positioning surface (1-2), and the other side protrudes upward and has a vertical positioning surface (1-3); the lower part of the vertical positioning surface (1-3) has a horizontal threaded hole (1-4) penetrating the rectangular groove (1-1); the trimming blade (2) and the rectangular fixing plate (5) are placed in the rectangular groove (1-1), and ... 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 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 a plurality of 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 surface, and a vertical groove (3-2) in the middle of the left end surface, and the vertical groove (3-2) is arranged along the axial direction of the circular groove (3-1) and penetrates the circular groove (3-1). The square positioning block (3) is placed above the rectangular groove (1-1), and its rear end surface 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 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 above the trimming blade (2), and the square positioning block (3) is pushed to move from right to left in close contact with the horizontal positioning surface (1-2) and the vertical positioning surface (1-3), and the protruding welding point (6-3) is gradually cut through the cutting edge (2-1) to make it flush with the end surface of the slip ring (6-1).

2. A slip ring assembly welding spot trimming tool according to claim 1, characterized in that: The depth of the circular groove (3-1) is less than or equal to the thickness of the slip ring (6-1).

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

4. The slip ring assembly welding 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 point (6-3).

5. The slip ring assembly welding 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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