Cable scratch-proof structure on a machine tool

Abstract

This utility model discloses a cable anti-scratching structure for machine tools, relating to the field of CNC machine tool technology. It includes a cable chain bracket connected to the moving end of the machine tool, with an anti-scratching component installed at the cable outlet to ensure smooth cable routing. The anti-scratching component includes a rolling sleeve rotatably mounted at the cable outlet bend. The machine tool cable bends and exits after contacting the rolling sleeve, remaining relatively stationary with the rolling sleeve during movement. This utility model, through the cooperation of the rolling sleeve and bearing, allows the rolling sleeve to rotate synchronously with the cable during movement, thereby converting sliding friction into static friction. This directly eliminates direct scratching between the cable and sharp corners, fundamentally solving damage such as insulation layer breakage and exposed copper wire. Furthermore, the segmented rolling sleeve design allows each segment to rotate independently, and the cable retainer groove separates different cables, preventing tangling and pulling of multiple cables due to differences in movement speed or timing. This design is suitable for complex scenarios involving multiple moving parts.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a cable anti-scratch structure for machine tools. Background Technology

[0002] With the development of the machine tool industry, CNC machine tools have taken a dominant position, and the original manual machine tools have basically withdrawn from the market. CNC machine tools have the technical characteristics of high speed, high efficiency and high precision. In order to realize its functions, CNC machine tools need to use machining program carriers, CNC devices, servo drive devices, machine tool bodies and other auxiliary devices. In order to realize the organic combination of these components and realize the control function, various connecting cables such as power wires and signal cables are required.

[0003] Since machine tools are in motion during processing, existing machine tool equipment often experiences cable damage and machine tool malfunctions due to the interaction between cables and fixed components. To address this, we propose a cable anti-scratching structure for machine tools. Utility Model Content

[0004] The purpose of this invention is to provide a cable anti-scratch structure for machine tools to solve the above-mentioned problems.

[0005] This utility model can be achieved through the following technical solution: a cable anti-scratch structure for machine tools, including a drag chain bracket connected to the movable end of the machine tool, and an anti-scratch component installed at the cable outlet for smooth cable out. The anti-scratch component includes a rolling sleeve rotatably installed at the bend of the cable outlet. The machine tool cable bends out after contacting the rolling sleeve, and remains relatively stationary with the rolling sleeve during movement.

[0006] A further technical improvement of this utility model is that: two fixed seats are fixed at the cable outlet of the cable carrier bracket, and a spindle is fixedly sleeved between the two fixed seats. The rolling sleeve is rotatably sleeved on the outside of the spindle through the bearing, and an adjusting shim is provided between the bearing and the corresponding fixed seat so that the inner ring of the bearing is in contact with the spindle.

[0007] A further technical improvement of this utility model is that a wire-locking groove is provided on the surface of the rolling sleeve to limit the axial displacement of the machine tool cable.

[0008] A further technical improvement of this utility model is that the cross-sectional shape of the cable tray is rectangular, trapezoidal or triangular, which can be adapted to cables of different diameters. The rectangular tray has strong versatility, the trapezoidal tray prevents the cable from falling out, and the triangular tray is suitable for thin cables.

[0009] A further technical improvement of this utility model is that the rolling sleeve has a segmented structure, each segment of the rolling sleeve is rotatably connected to the spindle through two independent bearings, and each segment is provided with a wire-locking groove.

[0010] A further technical improvement of this utility model is that the outer wall of the rolling sleeve is covered with a soft silicone layer, which can absorb vibration energy and reduce the risk of cable fatigue breakage.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention utilizes the cooperation between a rolling sleeve and a bearing to allow the rolling sleeve to rotate synchronously with the cable during movement, thereby converting sliding friction into static friction. This directly eliminates the direct scraping between the cable and sharp corners, addressing the root cause of damage such as insulation layer breakage and exposed copper wires. Furthermore, the segmented rolling sleeve design allows each segment to rotate independently, and the cable retainer groove separates different cables, preventing tangling and pulling of multiple cables due to differences in movement speed or timing. This design is suitable for complex scenarios involving the connection of multiple moving parts. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall installation state of this utility model;

[0015] Figure 2 This is a schematic diagram showing the mating state of the machine tool cable and the rolling sleeve according to this utility model;

[0016] Figure 3 This is a cross-sectional view of the main structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the external structure of the main body of Embodiment 2 of this utility model;

[0018] Figure 5 This is a schematic diagram of the external structure of the main body of Embodiment 3 of this utility model.

[0019] In the diagram: 1. Cable carrier bracket; 2. Machine tool cable; 3. Fixing base; 4. Spindle; 5. Adjusting shim; 6. Bearing; 7. Rolling sleeve; 701. Cable slot. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Example 1

[0022] Please see Figure 1-3As shown, a cable anti-scratch structure for machine tools includes a cable carrier 1 connected to the movable end of the machine tool. The cable carrier 1 is equipped with a machine tool cable 2. One end of the machine tool cable 2 is located at the cable outlet of the cable carrier 1. At the bend of the cable outlet, there is inevitably a sharp corner, which will cause local scratches to the machine tool cable 2 passing through this point.

[0023] Two fixing seats 3 are arranged opposite each other at the cable outlet position of the cable carrier bracket 1. Both fixing seats 3 are fixedly installed in the cable carrier bracket 1 by screws. A spindle 4 is arranged between the two fixing seats 3. The two ends of the spindle 4 pass through the two fixing seats 3 respectively and are fixedly connected to the two fixing seats 3 by screws, thereby completing axial and radial positioning.

[0024] Shoulders are provided at both ends of the mandrel 4 near the corresponding fixed base 3. Bearings 6 are fitted around the outer periphery of both shoulders, and an adjusting shim 5 is provided between the bearing 6 and the corresponding fixed base 3. By adjusting the thickness of the adjusting shim 5, the inner ring end face of the bearing 6 is tightly fitted with the shoulder of the mandrel 4. A rolling sleeve 7 is fitted around the outer periphery of the mandrel 4. The rolling sleeve 7 is tightly fitted with the outer ring of the bearing 6, and the outer ring of the bearing 6 axially limits it, so that the rolling sleeve 7 can rotate independently relative to the mandrel 4. Furthermore, the outer wall of the rolling sleeve 7 is covered with a soft silicone layer.

[0025] During use, when the machine tool cable 2 moves at a corner, it will come into contact with the rolling sleeve 7. Since the rolling sleeve 7 can rotate relative to the spindle 4, the machine tool cable 2 and the rolling sleeve 7 remain relatively stationary, generating only static friction and not sliding friction, thereby greatly reducing the risk of the machine tool cable 2 being scratched or broken.

[0026] Example 2

[0027] like Figure 4 As shown, based on Embodiment 1, a cable retaining groove 701 is provided in the rolling sleeve 7 to limit and fix the machine tool cable 2 that contacts the rolling sleeve 7, so that the machine tool cable 2 will not slip off along the axial direction of the rolling sleeve 7 during the movement.

[0028] The cross-sectional shape of the wire slot 701 can be rectangular, trapezoidal, or triangular.

[0029] Example 3

[0030] like Figure 5As shown, since the machine tool cables 2 leading out from the same cable outlet of the same cable carrier bracket 1 may be connected to different moving parts, the timing and speed of their movement may be different. To deal with this scenario, the rolling sleeve 7 outside the spindle 4 is set as multiple independently rotatable segments. Each segment of the rolling sleeve 7 is rotatably connected to the spindle 4 through two bearings 6, and each segment of the rolling sleeve 7 is provided with a cable clamping groove 701 to prevent multiple machine tool cables 2 in different motion states from slipping together and getting tangled, forming mutual pulling and causing cable damage.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A cable scratch prevention structure on a machine tool, characterized by: The cable chain bracket (1) is connected to the moving end of the machine tool. A scratch-resistant component is installed at the cable outlet to allow the machine tool cable (2) to be smoothly led out. The scratch-resistant component includes a rolling sleeve (7) rotatably installed at the bend of the cable outlet. The machine tool cable (2) bends out after contacting the rolling sleeve (7) and remains relatively stationary with the rolling sleeve (7) during movement.

2. A cable scratch prevention structure for a machine tool according to claim 1, characterized by, The cable outlet of the cable carrier bracket (1) is fixed with two fixed seats (3) respectively. A spindle (4) is fixed between the two fixed seats (3). A rolling sleeve (7) is rotated and sleeved on the outside of the spindle (4) through a bearing (6). An adjusting pad (5) is provided between the bearing (6) and the corresponding fixed seat (3) so that the inner ring of the bearing (6) fits against the spindle (4).

3. The anti-scratching structure for cables on machine tools according to claim 1, characterized in that, The rolling sleeve (7) has a cable retaining groove (701) on its surface to limit the axial displacement of the machine tool cable (2).

4. The anti-scratching structure for cables on machine tools according to claim 3, characterized in that, The cross-sectional shape of the wire slot (701) is rectangular, trapezoidal or triangular.

5. The anti-scratching structure for cables on machine tools according to claim 3, characterized in that, The rolling sleeve (7) has a segmented structure. Each segment of the rolling sleeve (7) is rotatably connected to the spindle (4) through two independent bearings (6), and each segment is provided with a wire clamping groove (701).

6. The anti-scratching structure for cables on machine tools according to claim 1, characterized in that, The outer wall of the rolling sleeve (7) is covered with a soft silicone layer.

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