Dust-free flexible drag chain assembly and preparation process thereof

Abstract

The invention provides a dust-free flexible drag chain assembly and a preparation process thereof, and belongs to the field of drag chains. Comprising a protective film, fixed pipes and movable pipes, the section of the protective film is annularly arranged, a plurality of sets of fixed pipes are fixedly connected to the outer wall of the protective film, each set of fixed pipes are annularly arranged, the same movable pipe is movably connected into every two adjacent fixed pipes in each set, and annular plates are fixedly connected to the two ends of each movable pipe; a plurality of magnets are fixedly connected to the sides, opposite to the annular plates, in the same fixing pipe. According to the cable fixing device, pressing and fixing between the same two mounting plates and the protective film are achieved through the fixing nuts and the fixing bolts, then an operator rotates the cylinder to enable the cable pressing grooves in the cylinder to be tightly attached to the outer wall of a cable, then the rotating shaft is locked, and fixing of the cable can be achieved; the device can effectively adapt to the installation operation of cables with different diameters, and improves the versatility.

Description

Technical Field

[0001] This invention relates to the field of cable chain technology, and in particular to a dust-free flexible cable chain assembly and its manufacturing process. Background Technology

[0002] In cleanroom environments with extremely high cleanliness requirements, such as semiconductor manufacturing, precision electronic processing, and biomedicine, cables of various automated equipment need to be organized and guided by cable chain assemblies to prevent cable tangling and wear, and to prevent dust pollution during cable movement. Flexible cable chains, with their small bending radius and adaptability to complex motion trajectories, are widely used in cleanroom equipment.

[0003] However, in actual installation, existing cleanroom flexible cable chains often suffer from several drawbacks. Because the membrane structure of these chains is mostly fixed and the internal channel space is limited, operators must manually insert one end of the cable into the membrane and pull it out the other. Due to the narrow membrane channels and the inherent flexibility of the structure, the cable is prone to deformation and wrinkling, causing friction against the inner wall of the membrane during insertion. This not only increases installation difficulty and time but can also lead to cable sheath wear, affecting equipment stability. Furthermore, the cable fixing plates on both sides of existing flexible cable chains are mostly integrated structures, only suitable for single-size cables. When different diameters or quantities of cables need to be fixed, corresponding fixing plates must be replaced, increasing component costs and reducing the flexibility and efficiency of cable installation, making it difficult to meet diverse equipment usage needs.

[0004] Based on the above reasons, this invention proposes a dust-free flexible cable chain assembly and its manufacturing process, which can effectively improve the convenience of cable installation by the flexible cable chain and the flexibility of cable fixing operations at both ends of the flexible cable chain. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a dust-free flexible cable chain assembly and its manufacturing process, which has the advantages of convenient cable installation and flexible cable fixing.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dust-free flexible cable chain assembly, including a protective film, characterized in that the protective film has an annular cross-section, and several sets of fixed tubes are fixedly connected to the outer wall of the protective film. Each set of fixed tubes has several units arranged in an annular pattern. The same movable tube is movably connected to two adjacent fixed tubes in each set. Both ends of the movable tube are fixedly connected to an annular plate. Several magnets are fixedly connected to one side of the annular plate facing each other in the same fixed tube. Two adjacent sets of fixed tubes at the upper center are connected through a flexible air tube. Several flexible metal wires are fixedly connected between the remaining two adjacent sets of fixed tubes. The flexible air tubes and flexible metal wires are covered inside the protective film. Two mounting plates are symmetrically arranged on both sides of the protective film, and an adjustable pressure wire assembly is provided in the mounting plate.

[0007] Preferably, the adjustable pressure line assembly includes side grooves, a plurality of which are provided on the mounting plate, and each side groove has an arc-shaped groove on its inner wall. A cylinder is provided in the arc-shaped groove, and a rotating shaft is fixedly connected to the center of the side wall of the cylinder. A pressure line groove is provided on the side wall of the cylinder. The rotating shaft is movably connected to the side groove. The pressure line groove has a semi-circular cross-section, and the radius of the pressure line groove cross-section varies uniformly along the rotation direction of the rotating shaft.

[0008] Preferably, the mounting plate is threaded with a number of positioning bolts on the side away from the side groove, one end of the positioning bolt is pressed against the side wall of the rotating shaft, and an elastic washer is sleeved between the positioning bolt and the mounting plate.

[0009] Preferably, a sealing gasket is fixedly connected to the outer wall of the cylinder, and the sealing gasket and the cylinder are of the same length.

[0010] Preferably, mounting holes are provided on both sides of the mounting plate, and fixing bolts are inserted into the mounting holes, with fixing nuts threaded onto the fixing bolts.

[0011] Preferably, a sealing ring is fixedly connected to the side wall of the annular plate, and the outer wall of the sealing ring is tightly attached to the inner wall of the fixed tube.

[0012] Preferably, the magnets on adjacent annular plates have the same magnetic poles, and the sidewalls of the magnets protrude from the sidewalls of the annular plates.

[0013] Preferably, the inner cavity of the protective membrane is provided with a plurality of diaphragms, and the diaphragms are integrally formed with the protective membrane.

[0014] The manufacturing process of a dust-free flexible cable chain assembly includes the following steps:

[0015] S1: Based on the specifications of the cable chain, process a fixed tube structure with a specified diameter cut in half, and select a movable tube that matches the fixed tube. Weld and fix ring plates at both ends of the movable tube, and attach magnets to the ring plates so that the magnets at both ends of the same movable tube have opposite polarities. This completes the preparation of materials for the fixed tube and the movable tube.

[0016] S2: Arrange half of the fixed tube structure in sequence, and place the movable tube into the inner cavity of half of the fixed tube in sequence, ensuring that the polarities of adjacent magnets are the same. Then fix the other half of the fixed tube to the arranged fixed tube by welding. This operation completes the setting of a set of ring fixed tubes and movable tubes, and produces a specified set according to actual needs.

[0017] S3: Fix several sets of annular fixed tubes and movable tube structures to the fixture at a specified interval, and make a hole in the fixed tube at the upper center position for fixing and connecting the flexible air tube. Then fix and connect the remaining sets of fixed tubes with flexible metal wires to complete the preparation of the main internal structure of the drag chain assembly.

[0018] S4: Apply a protective film to the cable chain assembly prepared above, so that the protective film is bonded to the fixed tube, and wrap the flexible air tube and flexible metal wire inside the protective film. According to the actual use requirements, a specified number of diaphragms are integrally formed inside the protective film to complete the preparation of the overall structure of the dust-free flexible cable chain assembly.

[0019] S5: Based on the specifications of the dust-free flexible cable chain assembly prepared above, process the mounting plate structure that matches the specifications, and open the side groove and arc groove structure on the mounting plate. Open the threaded hole that penetrates into the inner cavity of the side groove on the mounting plate. Process the cylinder of the specified diameter according to the side groove structure specifications, and process the pressure groove structure with variable diameter on the surface of the cylinder.

[0020] S6: Install the cylinder into the side groove and arc groove through the rotating shaft, and screw the positioning bolt into the threaded hole to complete the preparation of the pressure structure on both sides of the dust-free flexible drag chain assembly.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] This invention uses an inflation device to inject gas into a flexible air tube. The gas enters the inner cavity of the fixed tube at the center of each group through the flexible air tube, and then fills the entire group of fixed tubes through the movable tube. As the air pressure increases, the movable tube moves inside the fixed tube, increasing the distance between adjacent fixed tubes. The protective membrane can be expanded by the pulling of the flexible air tube and flexible metal wire. At this time, the operator can easily pass the cable through both sides of the protective membrane, and then expel the gas. Under the rebound force of the protective membrane, the movable tube re-enters the fixed tube, and the protective membrane covers the cable. This allows for convenient installation of cables using a dust-free flexible cable chain, effectively improving the ease of installation.

[0023] This invention uses a fixing nut and a fixing bolt to press and fix the same two mounting plates and the protective film together. Then, the operator rotates the cylinder so that the wire pressing groove on the cylinder is pressed tightly against the outer wall of the cable. Then, the rotating shaft is locked to fix the cable. This invention can effectively adapt to the installation of cables of different diameters and improve versatility. Attached Figure Description

[0024] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0025] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall side structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the protective film of the present invention;

[0029] Figure 5 This is a cross-sectional structural diagram of the fixed tube and the movable tube of the present invention;

[0030] Figure 6 This is a schematic diagram of one side of the protective film of the present invention;

[0031] Figure 7 This is a schematic diagram of the mounting plate of the present invention;

[0032] Figure 8 This is a schematic diagram of the cylindrical structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the active tube of the present invention.

[0034] [Figure Labels]

[0035] 1. Protective membrane; 2. Fixed tube; 3. Movable tube; 4. Annular plate; 5. Magnet; 6. Flexible air tube; 7. Flexible metal wire; 8. Mounting plate; 9. Adjustable pressure line assembly; 10. Side groove; 11. Arc groove; 12. Cylindrical; 13. Rotating shaft; 14. Pressure line groove; 15. Positioning bolt; 16. Elastic gasket; 17. Sealing gasket; 18. Mounting hole; 19. Fixing bolt; 20. Fixing nut; 21. Sealing ring; 22. Diaphragm.

[0036] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0037] The dust-free flexible cable chain assembly and its manufacturing process provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0040] It is understood that the meanings of “on”, “above” and “above” in this disclosure should be interpreted in the broadest sense, such that “on” means not only “directly on” something, but also includes something with an intermediary feature or layer, and that “above” or “above” means not only “on” something, but also includes something “above” or “above” without an intermediary feature or layer.

[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0042] like Figure 1-9 As shown, the embodiment of the present invention provides a dust-free flexible cable chain assembly, including a protective film 1. The protective film 1 has an annular cross-section, and several sets of fixed tubes 2 are fixedly connected to the outer wall of the protective film 1. Each set of fixed tubes 2 has several units arranged in an annular shape. The same movable tube 3 is movably connected to two adjacent fixed tubes 2 in each set. Both ends of the movable tube 3 are fixedly connected to annular plates 4. Several magnets 5 are fixedly connected to one side of the annular plates 4 facing each other in the same fixed tube 2. Two adjacent sets of fixed tubes 2 at the upper center are connected through a flexible air tube 6. Several flexible metal wires 7 are fixedly connected between the remaining two adjacent sets of fixed tubes 2. The flexible air tube 6 and the flexible metal wires 7 are both covered inside the protective film 1.

[0043] In the technical solution of this embodiment, when installing the cable, one end of the flexible air tube 6 extending out of the protective membrane 1 is connected to an external inflation device. Gas is injected into the flexible air tube 6 using the external inflation device. The gas enters the inner cavity of the fixed tube 2 at the center of each group through the flexible air tube 6, and is filled into the entire group of fixed tubes 2 through the movable tube 3. As the air pressure increases, the movable tube 3 moves inside the fixed tube 2, increasing the distance between adjacent fixed tubes 2. The protective membrane 1 can be expanded by the pulling of the flexible air tube 6 and the flexible metal wire 7. At this time, the operator can easily pass the cable through both sides of the protective membrane 1, and then the gas is discharged. Under the action of the rebound force of the protective membrane 1, the movable tube 3 re-enters the fixed tube 2, and the protective membrane 1 covers the cable, thus conveniently completing the installation operation of the cleanroom flexible cable chain for the cable, effectively improving the convenience of installation. At the same time, the setting of the fixed tube 2, the flexible air tube 6 and the flexible metal wire 7 can effectively increase the strength of the protective membrane 1, ensuring the safe and stable use of the cleanroom flexible cable chain.

[0044] A sealing ring 21 is fixedly connected to the side wall of the annular plate 4. The outer wall of the sealing ring 21 is closely attached to the inner wall of the fixed tube 2, which can effectively improve the sealing effect between the annular plate 3 and the fixed tube 2, thereby facilitating the movement of the movable tube 3 by air pressure.

[0045] The magnets 5 on adjacent annular plates 4 have the same magnetic poles, and the sidewalls of the magnets 5 protrude from the sidewalls of the annular plates 4, so that gas can be injected into the movable tube 3 from between the two annular plates 4.

[0046] The inner cavity of the protective membrane 1 is provided with several diaphragms 22. The diaphragms 22 are integrally formed with the protective membrane 1. The interior of the protective membrane 1 can be divided according to the number of cables to be installed, which facilitates installation and use.

[0047] Two mounting plates 8 are symmetrically arranged on both sides of the protective film 1. An adjustable pressure line assembly 9 is provided in the mounting plate 8. The adjustable pressure line assembly 9 includes a side groove 10. Several side grooves 10 are opened on the mounting plate 8. Each side groove 10 has an arc groove 11 on its inner wall. A cylinder 12 is arranged in the arc groove 11. A rotating shaft 13 is fixedly connected to the center of the side wall of the cylinder 12. A pressure line groove 14 is opened on the side wall of the cylinder 12. The rotating shaft 13 is movably connected to the side groove 10. The cross-section of the pressure line groove 14 is semi-circular. The radius of the cross-section of the pressure line groove 14 is uniformly varied along the rotation direction of the rotating shaft 13. Mounting holes 18 are opened on both sides of the mounting plate 8. Fixing bolts 19 are inserted into the mounting holes 18. Fixing nuts 20 are threaded on the fixing bolts 19.

[0048] In the technical solution of this embodiment, after the cable is installed through the protective film 1, two mounting plates 8 are symmetrically pressed on both sides of the protective film 1. Fixing bolts 19 are inserted into the mounting holes 18, and fixing nuts 20 and fixing bolts 19 are used to press and fix the same two mounting plates 8 and the protective film 1. Then the operator rotates the cylinder 12 so that the wire pressing groove 14 on the cylinder 12 is tightly attached to the outer wall of the cable. Then the rotating shaft 13 is locked to fix the cable. It can effectively adapt to the installation operation of cables of different diameters and improve versatility.

[0049] The mounting plate 8 is threaded with several positioning bolts 15 on the side away from the side groove 10. One end of the positioning bolt 15 is pressed against the side wall of the rotating shaft 13, and an elastic washer 16 is sleeved between the positioning bolt 15 and the mounting plate 8. By rotating the positioning bolt 15, the positioning bolt 15 can be pressed against the side wall of the rotating shaft 13 to achieve positioning and locking of the cylinder 12, thereby making the cable securely fixed.

[0050] A sealing gasket 17 is fixedly connected to the outer wall of the cylinder 12. The sealing gasket 17 and the cylinder 12 are of the same length. By fitting the sealing gasket 17 to the inner wall of the arc groove 11, the sealing performance between the cylinder 12 and the arc groove 11 can be improved, thus enhancing the dustproof effect.

[0051] The manufacturing process of a dust-free flexible cable chain assembly includes the following steps:

[0052] S1: Based on the specifications of the cable chain, process a fixed tube 2 structure with a specified diameter cut in half, and select a movable tube 3 that matches the fixed tube 2. Fix and install annular plates 4 at both ends of the movable tube 3 by welding, and attach magnets 5 to the annular plates 4 so that the magnets 5 at both ends of the same movable tube 3 are set with opposite polarities, thus completing the preparation of materials for the fixed tube 2 and the movable tube 3.

[0053] S2: Arrange half of the fixed tube 2 structure in sequence, and place the movable tube 3 into the inner cavity of half of the fixed tube 2 in sequence, and ensure that the adjacent magnets 5 are set with the same polarity. Then fix the other half of the fixed tube 2 to the arranged fixed tube 2 by welding. This operation completes the setting of a set of annular fixed tube 2 and movable tube 3, and produces a specified set according to actual needs.

[0054] S3: Fix several sets of annular fixed tubes 2 and movable tubes 3 at a specified interval to the fixture, and make a hole in the fixed tube 2 at the upper center position for fixing and connecting the flexible air tube 6. Then fix and connect the remaining sets of fixed tubes 2 with flexible metal wires 7 to complete the preparation of the main internal structure of the drag chain assembly.

[0055] S4: Apply the protective film 1 to the cable chain assembly prepared above, so that the protective film 1 is bonded to the fixed tube 2, and wrap the flexible air tube 6 and flexible metal wire 7 inside the protective film 1. According to the actual use requirements, a specified number of diaphragms 22 are integrally formed inside the protective film 1 to complete the preparation of the overall structure of the dust-free flexible cable chain assembly.

[0056] S5: Based on the specifications of the dust-free flexible cable chain assembly prepared above, process the mounting plate 8 structure that matches the specifications, and open the side groove 10 and arc groove 11 structure on the mounting plate 8. Open the threaded hole that penetrates into the inner cavity of the side groove 10 on the mounting plate 8. Process the cylinder 12 of a specified diameter according to the specifications of the side groove 10 structure, and process the pressure groove 14 structure with variable diameter on the surface of the cylinder 12.

[0057] S6: Install the cylinder 12 into the side groove 10 and the arc groove 11 through the rotating shaft 13, and screw the positioning bolt 15 into the threaded hole to complete the preparation of the pressure structure on both sides of the dust-free flexible drag chain assembly.

[0058] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0059] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0060] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dust-free flexible cable chain assembly, including a protective film (1), characterized in that, The protective membrane (1) has an annular cross-section, and several sets of fixed tubes (2) are fixedly connected to the outer wall of the protective membrane (1). Each set of fixed tubes (2) has several annular tubes. The same movable tube (3) is movably connected to two adjacent fixed tubes (2). Both ends of the movable tube (3) are fixedly connected to annular plates (4). Several magnets (5) are fixedly connected to the opposite side of the annular plates (4) in the same fixed tube (2). Two adjacent sets of fixed tubes (2) at the upper center are connected through a flexible air tube (6). Several flexible metal wires (7) are fixedly connected between the other two adjacent sets of fixed tubes (2). The flexible air tube (6) and the flexible metal wires (7) are both covered inside the protective membrane (1). Two mounting plates (8) are symmetrically arranged on both sides of the protective membrane (1). An adjustable pressure wire assembly (9) is provided inside the mounting plate (8).

2. The dust-free flexible cable chain assembly according to claim 1, characterized in that, The adjustable pressure wire assembly (9) includes a side groove (10), which has several openings on the mounting plate (8). Each side groove (10) has an arc groove (11) on its inner wall. A cylinder (12) is provided in the arc groove (11). A rotating shaft (13) is fixedly connected to the center of the side wall of the cylinder (12). A pressure wire groove (14) is provided on the side wall of the cylinder (12). The rotating shaft (13) is movably connected to the side groove (10). The pressure wire groove (14) has a semi-circular cross-section, and the radius of the cross-section of the pressure wire groove (14) varies uniformly along the rotation direction of the rotating shaft (13).

3. The dust-free flexible cable chain assembly according to claim 2, characterized in that, The mounting plate (8) is threaded with several positioning bolts (15) on the side away from the side groove (10). One end of the positioning bolt (15) is pressed against the side wall of the rotating shaft (13), and an elastic washer (16) is sleeved between the positioning bolt (15) and the mounting plate (8).

4. The dust-free flexible cable chain assembly according to claim 3, characterized in that, A sealing gasket (17) is fixedly connected to the outer wall of the cylinder (12), and the sealing gasket (17) and the cylinder (12) are of the same length.

5. The dust-free flexible cable chain assembly according to claim 4, characterized in that, Mounting holes (18) are provided on both sides of the mounting plate (8). Fixing bolts (19) are inserted into the mounting holes (18), and fixing nuts (20) are threaded onto the fixing bolts (19).

6. The dust-free flexible cable chain assembly according to claim 5, characterized in that, A sealing ring (21) is fixedly connected to the side wall of the annular plate (4), and the outer wall of the sealing ring (21) is tightly attached to the inner wall of the fixing tube (2).

7. The dust-free flexible cable chain assembly according to claim 6, characterized in that, The magnets (5) on adjacent annular plates (4) have the same magnetic poles, and the sidewalls of the magnets (5) protrude from the sidewalls of the annular plates (4).

8. The dust-free flexible cable chain assembly according to claim 7, characterized in that, The inner cavity of the protective membrane (1) is provided with a plurality of diaphragms (22), and the diaphragms (22) are integrally formed with the protective membrane (1).

9. The manufacturing process of the dust-free flexible cable chain assembly according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Process a fixed tube (2) structure with a specified diameter in half according to the specifications of the drag chain, and select a movable tube (3) that matches the fixed tube (2). Install annular plates (4) by welding at both ends of the movable tube (3), and attach magnets (5) to the annular plates (4) so ​​that the magnets (5) at both ends of the same movable tube (3) are set with opposite polarities, thus completing the preparation of materials for the fixed tube (2) and the movable tube (3); S2: Arrange half of the fixed tube (2) structure in sequence, and place the movable tube (3) into the inner cavity of half of the fixed tube (2) in sequence, and ensure that the adjacent magnets (5) have the same polarity. Then fix the other half of the fixed tube (2) to the arranged fixed tube (2) by welding. This operation completes the setting of a set of annular fixed tube (2) and movable tube (3), and produces a specified set according to actual needs. S3: Fix several sets of annular fixed tubes (2) and movable tubes (3) at a specified interval to the fixture, and make a hole in the fixed tube (2) at the upper center position for fixing the flexible air tube (6), and fix the remaining sets of fixed tubes (2) together with flexible metal wires (7) to complete the preparation of the main structure inside the drag chain assembly; S4: Apply a protective film (1) to the cable chain assembly prepared above, so that the protective film (1) is bonded to the fixed tube (2), and wrap the flexible air tube (6) and flexible metal wire (7) inside the protective film (1), and integrally form a specified number of diaphragms (22) inside the protective film (1) according to actual use needs, to complete the preparation of the overall structure of the dust-free flexible cable chain assembly; S5: Based on the specifications of the dust-free flexible cable chain assembly prepared above, process the mounting plate (8) structure that matches the specifications, and open the side groove (10) and arc groove (11) structure on the mounting plate (8). Open the threaded hole that penetrates into the inner cavity of the side groove (10) on the mounting plate (8), process the cylinder (12) of the specified diameter according to the specifications of the side groove (10) structure, and process the pressure groove (14) structure with variable diameter on the surface of the cylinder (12). S6: Install the cylinder (12) into the side groove (10) and arc groove (11) through the rotating shaft (13), and screw the positioning bolt (15) into the threaded hole to complete the preparation of the pressure structure on both sides of the dust-free flexible drag chain assembly.

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