Shunting wire tail end milling tool

Abstract

The utility model discloses a shunting wire tail end milling tool which comprises a base, a positioning groove used for containing a terminal is formed in the base, a supporting frame is further arranged on the base, a material pressing column is arranged on the supporting frame in a springing mode through an elastic piece, a fastening piece is further arranged on the base, and the fastening piece can drive the supporting frame to be close to the base. And meanwhile, the terminals are pressed in the positioning grooves by the material pressing columns. During clamping, the base is firstly clamped on a machine table, then a terminal at the tail end of a shunt wire is placed in the positioning groove, and finally the pressing column is driven by the fastener to press the terminal in the positioning groove to complete clamping. Compared with the prior art, the shunting wire tail end milling tool disclosed by the utility model has the advantages that the terminal can be conveniently clamped, and the convenience of milling operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shunt wires, in particular to a milling tool for the tail end of a shunt wire. Background Art

[0002] Pantograph shunt conductors are key components in electrified railway power supply systems. Made of high-quality braided copper wire, these conductors are fitted with specially designed terminals at both ends to ensure a secure connection. Their primary function is to effectively divert electrical energy drawn from the overhead catenary to the railway vehicle's power supply system when the pantograph makes contact with the grid, ensuring stable current transmission. By optimizing current distribution, pantograph shunt conductors not only improve electrified railway operating efficiency but also enhance system safety, reducing the risks of current overloads and leakage, and providing a safer and more reliable travel environment for passengers and staff.

[0003] After the cable and terminal of the pantograph shunt conductor are assembled, the terminal end needs to be milled to ensure its flatness. In the prior art, there is no clamping tool specially designed for the shunt conductor, which leads to inconvenience during the milling operation. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a milling tool for the tail end of a shunt wire.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A shunt wire tail end milling tool includes a base, a positioning groove for placing a terminal is provided on the base, a support frame is also provided on the base, a pressing column is elastically provided on the support frame through an elastic member, and a fastening member is also provided on the base. The fastening member can drive the support frame close to the base, and at the same time, the pressing column presses the terminal to the positioning groove.

[0007] Preferably, a flange is provided at the end of the pressing column, and the elastic member includes a spring sleeved on the pressing column, one end of the spring abuts against the support frame, and the other end abuts against the flange.

[0008] Preferably, the pressing columns and the positioning grooves are arranged in groups in a transverse direction.

[0009] Preferably, a plurality of positioning blocks are detachably provided on the base, and adjacent positioning blocks define the positioning groove.

[0010] Preferably, the fastening member includes a rotatably arranged connecting ring, and a locking block is rotatably arranged at the end of the connecting ring.

[0011] Preferably, a mounting groove is provided on the end surface of the base, and a protrusion is correspondingly provided on the positioning block, and the protrusion is snap-connected to the mounting groove.

[0012] Preferably, the locking block includes an abutting end and a gripping end relative to each other, the abutting end is configured as an arc surface, and an abutting groove that matches the arc surface is correspondingly provided on the end surface of the support frame.

[0013] Preferably, a positioning column for inserting into the mounting hole of the terminal is further provided in the positioning groove.

[0014] The beneficial effect of this utility model is that the base is first clamped on the machine table, the terminal at the end of the shunt wire is then placed in the positioning groove, and finally the clamping is completed by driving the pressing column through the fastening member to press the terminal into the positioning groove. Compared with the existing technology, the shunt wire end milling tool of this utility model can realize convenient terminal clamping, and the convenience of milling operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment;

[0016] Figure numerals: 1. base; 2. positioning groove; 3. support frame; 4. elastic member; 5. pressing column; 6. fastening member; 7. flange; 8. positioning block; 9. connecting ring; 10. locking block; 11. mounting groove; 12. protrusion; 13. abutting end; 14. holding end; 15. abutting groove; 16. positioning column; 17. terminal. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0018] like Figure 1 As shown, a tool for milling the tail end of a shunt conductor includes a base 1 pre-clamped on a milling machine, such as a milling machine, and provided with a positioning slot 2 adapted to the shape of a terminal 17. Specifically, the base 1 is further provided with a support frame 3, which is provided with a holding column 5 that can be moved toward or away from the base 1 via an elastic member 4. Furthermore, the base 1 is further provided with a fastening member 6 that can be used to drive the support frame 3 toward the base 1.

[0019] When the tail end of the shunt wire is milled, the terminal 17 can be placed in the positioning groove 2, and then the fastening member 6 is operated to drive the support frame 3 close to the base 1. During this period, the pressing column 5 will abut the terminal 13 and press the terminal 17 into the positioning groove 2 to complete the clamping.

[0020] The elastic setting of the pressing column 5 can ensure sufficient pressing force on the terminal 17 on the one hand, and is not easy to cause excessive pressing force on the terminal 17 on the other hand, so that the terminal 17 is not easy to be deformed when clamped.

[0021] For example, the pressing post 5 is slidably fitted on the support frame 3, and a flange 7 is provided at the end of the pressing post 5 close to the base 1. The elastic member 4 includes a spring sleeved on the pressing post 5, with one end of the spring abutting against the support frame 3 and the other end abutting against the flange 7. When the pressing post 5 abuts against the terminal 17, the spring will be compressed between the flange 7 and the support frame 3, so that the pressing post 5 can be resiliently arranged relative to the support frame 3.

[0022] In some embodiments, both the base 1 and the support frame 3 are constructed in an elongated strip shape, with the press pins 5 and positioning slots 2 arranged in groups along the horizontal axis. In other words, the base 1 and support frame 3 are each provided with a plurality of positioning slots 2 and press pins 5, with each press pin 5 corresponding to each positioning slot 2. During milling, multiple shunt conductors can be loaded into the positioning slots 2 simultaneously, enabling the milling of more shunt conductor ends in a single clamping operation.

[0023] For example, the base 1 may be provided with a plurality of detachable positioning blocks 8, with adjacent positioning blocks 8 defining the aforementioned positioning slots 2. Positioning and clamping of terminals 17 of different widths may be achieved by replacing positioning blocks 8 of different sizes. In a preferred example, a mounting slot 11 is provided on the end face of the base 1, and a corresponding protrusion 12 is provided on the positioning block 8. The positioning block 8 is removable relative to the base 1 by snapping the protrusion 12 into the mounting slot 11. The mounting slot 11 may preferably be constructed to extend longitudinally through the side wall of the base 1, so that the positioning block 8 can be more conveniently assembled and disassembled by sliding the protrusion 12 laterally in and out of the mounting slot 11.

[0024] The base 1 is further provided with vertical through holes between adjacent mounting grooves 11, and a positioning post 16 is further provided in the through holes, with the end of the positioning post 16 extending into the positioning groove 2. When the terminal 17 is placed in the positioning groove 2, the positioning post 16 can be snapped into the mounting hole of the terminal 17 to further position the terminal 17.

[0025] In some embodiments, the fastening member 6 includes a connecting ring 9 rotatably mounted on the side wall of the base 1, and a locking block 10 is also rotatably mounted on the end of the connecting ring 9. After the terminal 17 is placed in the positioning groove 2, the connecting ring 9 is rotated to rotate the locking block 10 to the side of the support frame 3 facing away from the base 1. At the same time, since the elastic member 4 is in a natural state, the support frame 3 can be described as being in a raised state away from the side of the base 1. At this time, the side wall of the locking block 10 is in contact with the support frame 3. When the locking block 10 is further rotated, the end of the locking block 10 pushes the support frame 3 toward the side of the base 1, the elastic member 4 enters a compressed state, and the pressing column 5 presses the terminal 17 into the positioning groove 2.

[0026] As another solution, the fastening member 6 can also be a screw provided on the base 1 and a push block (not shown) adapted to fit the screw. It is understood that after the terminal 17 is placed in the positioning slot 2, the screw can be rotated to drive the push block to move axially, thereby pushing the support frame 3 toward the side of the base 1 to clamp the terminal 17.

[0027] For example, the locking block 10 may include an opposing abutment end 13 and a gripping end 14, wherein the gripping end 14 may be configured in any shape suitable for handholding, while the abutment end 13 may preferably be configured as an arcuate surface, and an abutment groove 15 correspondingly configured to mate with the arcuate surface is provided on the end surface of the support frame 3. When the rotating block rotates, the arcuate surface and the abutment groove 15 guide the rotating block, making the rotation smoother and more labor-saving.

[0028] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A milling tool for the tail end of a shunt wire, characterized by: The invention comprises a base (1), wherein the base (1) is provided with a positioning groove (2) for placing a terminal, the base (1) is also provided with a support frame (3), the support frame (3) is provided with a pressing column (5) which can be elastically provided through an elastic member (4), and the base (1) is also provided with a fastening member (6), wherein the fastening member (6) can drive the support frame (3) close to the base (1), and at the same time, the pressing column (5) presses the terminal against the positioning groove (2).

2. The shunt wire tail end milling tool according to claim 1, characterized in that: The end of the pressing column (5) is provided with a flange (7), and the elastic member (4) includes a spring sleeved on the pressing column (5), one end of the spring abuts against the support frame (3), and the other end abuts against the flange (7).

3. The shunt wire tail end milling tool according to claim 1, characterized in that: The pressing columns (5) and the positioning grooves (2) are arranged in groups in a transverse direction.

4. The shunt wire tail end milling tool according to claim 1 or 3, characterized in that: A plurality of positioning blocks (8) are detachably provided on the base (1), and adjacent positioning blocks (8) define the positioning groove (2).

5. The shunt wire tail end milling tool according to any one of claims 1 to 3, characterized in that: The fastening member (6) comprises a rotatably arranged connecting ring (9), and a locking block (10) is rotatably arranged at the end of the connecting ring (9).

6. The shunt wire tail end milling tool according to claim 4, characterized in that: A mounting groove (11) is provided on the end surface of the base (1), and a convex block (12) is correspondingly provided on the positioning block (8), and the convex block (12) is snap-connected to the mounting groove (11).

7. The shunt wire tail end milling tool according to claim 5, characterized in that: The locking block (10) comprises an opposing abutting end (13) and a gripping end (14); the abutting end (13) is constructed as an arc surface; and an abutting groove (15) that matches the arc surface is correspondingly provided on the end surface of the support frame (3).

8. The shunt wire tail end milling tool according to any one of claims 1 to 3, characterized in that: A positioning column (16) for inserting into the mounting hole of the terminal is also provided in the positioning groove (2).

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