Commonly used models and selection points of cable drag chains on machine tools

The working principle of the cable drag chain puts the cable into the drag chain, and connects the two ends of the cable drag chain to the platform, and the drag chain moves with the device to achieve the purpose of power transmission to the mobile device. The cable drag chain is shaped like a tank chain and consists of a number of unit links that rotate freely between links. The unit chain link is composed of left and right chain plates and upper and lower cover plates. Each link of the towline can be opened, which is convenient for assembly and disassembly. It is not necessary to thread the cable. After opening the cover plate, the cable, oil pipe, air pipe and water pipe can be put into the drag chain.

The cable drag chain on the machine tool can be divided into plastic cable drag chain and steel cable drag chain according to different structures and materials. Common types of plastic cable towline are: 7*7, 10*10, 10*15, 15*15, 15*20, 15*35, 15*40, 15*40, 15*50, 18*18, 18 *25,18*35,18*50,18*60,25*25,25*38,25*57,25*77,25*103,35*50,35*60,35*75,35*100 , 35*125, 35*150, 35*175, 35*200, 45*50, 45*60, 45*75, 45*100, 45*125, 45*150, 45*200, 56*95, 56 *125, 56*175, 56*200, 56*300 and 55, 62, 65, 80 series and other towline.

Common types of steel cable towline are: TL45, TL65, TL95, TL125, TL180, TL225, TL250 type, the width of the drag chain can be customized according to user requirements, the bending radius is from 50-800. There are three forms of support plates. (1) When the towline needs to carry a large pipe and cable load, the high-strength support plate should be selected - the whole block type (2) when the pipe joint size of the pipe cable is larger than the inner hole diameter of the support plate or it must be frequently disassembled and repaired. Isochronous. Optional support plate - Separate type (3) When installing a variety of cable specifications, the support plate can be selected - the selection principle of the cable drag chain on the frame type machine tool:

First, the selection principle of the drag chain: high: choose the built-in cable. The thickest of the tubing, air pipe, water pipe, etc. is used as the reference height. Add at least 10% of the height space as the inner height of the chain. If the cable tubing, air pipe, water pipe, etc. need to overlap, the actual height after overlap is used as the reference height.

Second, the inner width: select a thicker cable; the sum of the outer diameter of the oil pipe, gas pipe, water pipe, etc. as a reference for the inner width of the drag chain and leave at least 10% of the width space.

Third, the bending radius: select the built-in cable; the largest bending radius of the oil pipe, gas pipe, water pipe, etc. as the test value, and leave more than 10% of the space.

Fourth, how to place in the chain: cable, tubing, gas pipe, water pipe; should leave 10% to 15% of the remaining space for the built-in cable, tubing, gas pipe, etc. can move freely; in the bending radius The towline does not create strong tension and protects cables, tubing or air lines.

5. The conductors with large diameter differences should be laid separately, the weight distribution is average, and if necessary, the spacers can be used to separate them.

6. When the towline needs high-speed or high-frequency operation, the wires should be separated from each other as much as possible. Refuse to overlap each other. When there are many wires, cables, tubing, and air pipes, it is recommended to use the spacers separately.

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