A wire tube mounting protection structure and a swing head

Abstract

The application discloses a kind of wire tube installation protection structures and swing head, comprising: first mounting disc is equipped with guide shaft, the guide shaft is extended by the first mounting disc along the axial direction;Second mounting disc is equipped with shaft hole, the second mounting disc is installed in the guide shaft by the shaft hole, axial interval is formed between the second mounting disc and the first mounting disc, the second mounting disc can be rotated relative to the first mounting disc around the guide shaft axis, and can be floated relative to the first mounting disc along the axial direction of the guide shaft;Wherein, the first mounting disc and second mounting disc are equipped with wire tube installation structure.The application can greatly reduce wire tube, joint replacement frequency, reduce equipment comprehensive operation and maintenance cost.

Description

Technical Field

[0001] This invention is applicable to the machine tool field, and in particular relates to a conduit installation protection structure and a swing head. Background Technology

[0002] Existing external cable protection structures for the C-axis of AC oscillating heads primarily employ basic dust and chip protection designs, such as simply wrapping and isolating the cable harness using flexible sheaths or cable chains. However, such structures only provide passive shielding and cannot effectively address the torsional stress generated when the C-axis performs ±360° continuous forward and reverse rotation. In actual manufacturing, the cable harness continuously twists and entangles with the C-axis's rotation, enduring alternating loads over long periods. This can easily lead to problems such as cracking of the cable sheath, fatigue fracture of the inner core, and loosening and failure of the terminals, severely impacting the stability of signal transmission and the reliability of power supply.

[0003] Meanwhile, the traditional protective covers currently in use are mostly made of rigid or semi-rigid materials, lacking a flexible compensation mechanism to adapt to reciprocating torsion. During large-angle C-axis rotation, the cable is prone to hard bends, compression, and excessive friction with the inner wall of the cover. The inside of the cover also frequently becomes a source of secondary wear due to cutting fluid seepage and metal debris accumulation, further accelerating cable insulation damage and conductor oxidation corrosion. These protective defects frequently cause abnormal equipment shutdowns, encoder feedback loss, drive alarms, and machining contour deviations in actual working conditions. This not only reduces machine tool availability and machining accuracy but also significantly increases production and maintenance costs due to frequent cable replacements and complex maintenance operations.

[0004] In summary, the problems existing in the relevant technologies urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a conduit installation protection structure and a swing head.

[0006] The technical solution adopted by this invention to solve its technical problem is: Firstly, a conduit installation protection structure includes: A first mounting plate is provided with a guide shaft, the guide shaft extending axially from the first mounting plate; The second mounting plate has a shaft hole, and the second mounting plate is mounted on the guide shaft through the shaft hole. An axial gap is formed between the second mounting plate and the first mounting plate. The second mounting plate can rotate relative to the first mounting plate about the axis of the guide shaft, and can float relative to the first mounting plate along the axial direction of the guide shaft. Both the first and second mounting plates are equipped with conduit mounting structures.

[0007] In conjunction with the first aspect, some implementations of the first aspect further include a bearing and a floating bearing housing, wherein the outer ring of the bearing is mounted in the shaft hole of the second mounting plate, the inner ring of the bearing is mounted in the floating bearing housing, and the floating bearing housing is fitted onto the guide shaft.

[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the guide shaft is provided with a limiting structure to restrict the axial floating stroke of the second mounting plate. The limiting structure includes a straight slot through hole provided in the guide shaft, and the floating bearing seat is provided with a fixing pin passing through the straight slot through hole.

[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the conduit installation structure includes an outer ring sleeve and an inner bushing, the outer ring sleeve and the inner bushing having a U-shaped structure with an axial notch, and the inner bushing being nested inside the outer ring sleeve.

[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the conduit installation structure further includes an adjusting pad disposed inside the inner bushing. The inner bushing has a radial screw hole, and a set screw that abuts against the adjusting pad is disposed in the radial screw hole. A plurality of adjusting pads are disposed inside the inner bushing, and the plurality of adjusting pads are distributed circumferentially along the inner hole of the inner bushing. A set screw is disposed on the back side of each adjusting pad.

[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the inner hole of the outer ring sleeve is provided with an axial stepped surface, the inner bushing is axially assembled to the axial stepped surface, the inner hole of the outer ring sleeve is provided with a C-shaped spacer, and the C-shaped spacer is radially supported at both ends of the inner bushing.

[0012] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, the first mounting plate is provided with a first mounting groove, the first mounting groove extends toward the edge of the first mounting plate and forms an opening at the edge of the first mounting plate, and the outer ring sleeve can be fitted into the first mounting groove through the opening of the first mounting groove; the second mounting plate is provided with a second mounting groove, the second mounting groove extends toward the edge of the second mounting plate and forms an opening at the edge of the second mounting plate, and the outer ring sleeve can be fitted into the second mounting groove through the opening of the second mounting groove; The outer ring sleeve has limiting flanges at both ends, and a limiting groove is formed between the limiting flanges on the outer circumferential surface of the outer ring sleeve. A connecting hole is provided on the limiting flange at at least one end of the outer ring sleeve. The first mounting plate has first fixing holes on both sides of the first mounting groove. The outer ring sleeve is connected to the first mounting plate by fasteners passing through the connecting holes and the first fixing holes. The second mounting plate has second fixing holes on both sides of the second mounting groove. The outer ring sleeve is connected to the second mounting plate by fasteners passing through the connecting holes and the second fixing holes.

[0013] In combination with the first aspect and the above-described implementation methods, in some implementation methods of the first aspect, the first mounting plate is provided with a variety of first mounting slots of different widths, and the second mounting plate is provided with a variety of second mounting slots of different widths.

[0014] In combination with the first aspect and the above-described implementations, some implementations of the first aspect further include a protective cover, which is installed on the first mounting plate and covers the circumferential outer side of the first and second mounting plates. The protective cover includes multiple arc-shaped cover plates, which are circumferentially assembled on the outer side of the first mounting plate and the second mounting plate. It also includes a mounting bracket, which is mounted on the first mounting plate.

[0015] The second aspect is a swing head, including a conduit mounting protection structure as described in any implementation of the first aspect. One of the above technical solutions has at least one of the following advantages or beneficial effects: This invention can be used for the installation of conduits in machine tools and other equipment with rotating structures, such as swivel heads. The conduit installation and protection structure includes a first mounting plate and a second mounting plate. During operation, one end of the conduit remains stationary and frictionless with the machine body under the locking of the first mounting plate. When the rotating structure of the equipment, such as the C-axis of the swivel head, rotates 360 degrees, the second mounting plate can be displaced axially and in the rotational direction within the conduit installation and protection structure. The rotation of the wire exiting the end of the equipment drives the second mounting plate to rotate. Therefore, the conduit between the end of the equipment and the second mounting plate is relatively stationary, ensuring that this part of the conduit is free from knots, tension, tangling, and twisting during rotation. During the rotation of the rotating structure of the equipment, such as the C-axis of the swivel head, the second mounting plate rotates along with the conduit inside the conduit retainer. Simultaneously, because the second mounting plate can be displaced axially, when the conduit rotates and expands, the second mounting plate follows the expansion and contraction of the conduit, ensuring that the conduit does not become tense or torn, thus avoiding conduit stretching and fatigue damage. This invention can significantly reduce the frequency of replacing conduits and connectors, thereby reducing the overall operation and maintenance costs of equipment.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure after removing part of the arc-shaped cover plate according to an embodiment of the present invention; Figure 3 This is an exploded structural diagram of an embodiment of the present invention; Figure 4 This is a schematic diagram of the first mounting plate and guide shaft structure according to an embodiment of the present invention; Figure 5 This is an exploded view of a conduit installation structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the working state of a conduit installation structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a first mounting slot structure with multiple different widths for a first mounting plate according to an embodiment of the present invention; Figure 8 This is a partial cross-sectional view of an embodiment of the present invention; Figure 9 This is a schematic diagram of an embodiment of the present invention installed in a swing head; Figure 10 , Figure 11 This is a schematic diagram of the structure during operation of one embodiment of the present invention. Detailed Implementation

[0018] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0019] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0020] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0022] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The present invention provides a conduit installation protection structure, including a first mounting plate 100 and a second mounting plate 200, wherein the first mounting plate 100 is provided with a guide shaft 101, which extends axially from the first mounting plate 100 and is used for installation guidance of the second mounting plate 200.

[0023] The second mounting plate 200 is provided with a shaft hole 201. The second mounting plate 200 is mounted on the guide shaft 101 through the shaft hole 201. An axial gap is formed between the second mounting plate 200 and the first mounting plate 100, that is, the first mounting plate 100 and the second mounting plate 200 are separated by a certain distance. The second mounting plate 200 can rotate relative to the first mounting plate 100 around the axis of the guide shaft 101 and can float relative to the first mounting plate 100 along the axial direction of the guide shaft 101.

[0024] The first mounting plate 100 and the second mounting plate 200 are both equipped with a conduit mounting structure 300. The conduits that need to be protected are installed in different positions on the first mounting plate 100 and the second mounting plate 200 through the conduit mounting structure 300.

[0025] This invention can be used for the installation and protection of conduits in machine tools and other equipment with rotating structures, such as oscillating heads. For example, in some embodiments, see [link to relevant documentation]. Figure 9The conduit installation and protection structure is integrally installed inside the machine tool column, used for the installation and organization of conduits between the A-axis at the end of the swivel head and the rotatable part of the spindle. The first mounting plate 100 is fixedly installed to the machine tool column. During operation, refer to... Figure 10 , Figure 11 One end of the equipment conduit 700 remains stationary and frictionless with the equipment body under the locking of the first mounting plate 100. When the rotating structure of the equipment, such as the swing head C-axis 600, rotates 360 degrees, the second mounting plate 200 can move axially and in the rotational direction due to the axial displacement of the protective structure installed on this conduit. The rotation of the cable exiting the equipment end drives the second mounting plate 200 to rotate. Therefore, the conduit between the equipment end and the second mounting plate 200 is in a relatively stationary state, ensuring that this part of the conduit is free from knots, tension, tangling, and twisting during rotation. During the rotation of the rotating structure of the equipment, such as the swing head C-axis 600, the second mounting plate 200 rotates along with the conduit inside the conduit retainer. Simultaneously, because the second mounting plate 200 can move axially, when the conduit rotates and expands, the second mounting plate 200 follows the expansion and contraction of the conduit, ensuring that the conduit does not become tense or torn, thus avoiding conduit stretching and fatigue damage. This invention can significantly reduce the frequency of conduit and connector replacements, reducing the overall equipment maintenance cost.

[0026] The second mounting plate 200 can directly rotate and float with the guide shaft 101 through the shaft hole 201, that is, the second mounting plate 200 and the guide shaft 101 are directly engaged, and no other components are set in between.

[0027] In some embodiments, see Figure 3 , Figure 8 The conduit installation protection structure also includes a bearing 202 and a floating bearing seat 203. The outer ring of the bearing 202 is installed in the shaft hole 201 of the second mounting plate 200, and the inner ring of the bearing 202 is installed in the floating bearing seat 203. The floating bearing seat 203 is fitted onto the guide shaft 101. After installation, the second mounting plate 200 can generate axial and rotational displacement more smoothly on the guide shaft 101 of the first mounting plate 100, reducing tensile and fatigue damage to the conduit caused by mating friction.

[0028] Further, see Figure 3 , Figure 4 , Figure 8A limiting structure is provided at the position where the guide shaft 101 mates with the second mounting plate 200 to restrict the axial floating stroke of the second mounting plate 200. Specifically, the limiting structure includes a straight slot through hole 102 provided in the guide shaft 101. The straight slot through hole 102 extends a certain length along the axial direction of the guide shaft 101, forming blind ends at both ends. The floating bearing seat 203 is provided with a fixing pin 204 passing through the straight slot through hole 102. During installation, the fixing pin 204 passes through a radial hole on the floating bearing seat 203 and then through the straight slot through hole 102 of the guide shaft 101. Through the cooperation between the fixing pin 204 and the straight slot through hole 102, the axial floating stroke of the second mounting plate 200 along the guide shaft 101 in both the vertical and horizontal directions is effectively restricted.

[0029] The conduit mounting structure 300 may employ wire clamps or wire loops, which are respectively mounted on the first mounting plate 100 and the second mounting plate 200 to achieve the installation and fixation of the conduit on the two mounting plates. See also the following embodiments: Figure 5 , Figure 6 The conduit installation structure 300 includes an outer ring sleeve 301 and an inner bushing 302. Both the outer ring sleeve 301 and the inner bushing 302 are U-shaped structures with axial notches. These axial notches allow for quick assembly and disassembly of the conduit during installation. The inner bushing 302 is nested inside the outer ring sleeve 301. The inner bushing 302 can rotate within the outer ring sleeve 301. During conduit installation, the axial notch of the inner bushing 302 is rotated to align with the axial notch of the outer ring sleeve 301. The conduit is then placed inside the inner bushing 302. Rotating the inner bushing 302 displaces the axial notch of the inner bushing 302 from the axial notch of the outer ring sleeve 301, thus securing the conduit within it. This structure, allowing the inner bushing 302 to rotate independently of the outer ring sleeve 301, reduces internal torque on the conduit when the equipment's rotating structure, such as the oscillating head C-axis 600, rotates 360 degrees positive and negative.

[0030] Among them, see Figure 5 , Figure 6 The conduit mounting structure 300 also includes adjusting pads 303 disposed inside the inner bushing 302. The adjusting pads 303 are arched rubber structures, fixed at both ends to the inner bushing 302. The inner bushing 302 has radial threaded holes, in which set screws 304 abut against the adjusting pads 303. Multiple adjusting pads 303 are disposed inside the inner bushing 302, distributed circumferentially along the inner hole of the inner bushing 302. Each adjusting pad 303 has a set screw 304 on its back side. In use, the conduit is first placed inside the inner bushing 302, positioned between the adjusting pads 303. The inner bushing 302 is rotated so that the set screws 304 face the opening. A wrench is used to press the adjusting pads 303 through the set screws 304 to tighten the conduit, thus securing it in place.

[0031] Furthermore, in some embodiments, see Figure 5 , Figure 6The outer ring sleeve 301 has an axial stepped surface 305 in its inner hole. The inner bushing 302 is axially fitted onto the axial stepped surface 305. The outer ring sleeve 301 has a C-shaped spacer 306 in its inner hole, which radially supports both ends of the inner bushing 302. The C-shaped spacer 306 can be a rubber ring, with its outer circle fixed at the inner hole of the outer ring sleeve 301. Its function is to separate the inner bushing 302 and the outer ring sleeve 301, while providing radial support. The wear resistance of the rubber ensures that the inner bushing 302 will not suffer frictional wear when rotating. It has a notch for quick disassembly and assembly during conduit installation.

[0032] In some embodiments, see Figure 4 , Figure 7 The first mounting plate 100 is provided with a first mounting groove 103, which extends to the edge of the first mounting plate 100 and forms an opening at the edge of the first mounting plate 100. The outer ring sleeve 301 can be fitted into the first mounting groove 103 through the opening of the first mounting groove 103. During installation, the conduit mounting structure 300 is pushed in from the opening of the first mounting groove 103. In other words, during operation, the conduit can be installed on the conduit mounting structure 300 first, and then the conduit mounting structure 300 after the conduit is installed is pushed into the first mounting plate 100 from the opening of the first mounting groove 103. The whole installation process is more convenient and can ensure that after both ends of the conduit are fixed, it can still be quickly assembled into the first mounting plate 100.

[0033] Correspondingly, see Figure 2 , Figure 3 The second mounting plate 200 is provided with a second mounting groove 205, which extends towards the edge of the second mounting plate 200 and forms an opening at the edge of the second mounting plate 200. The outer ring sleeve 301 can be fitted into the second mounting groove 205 through the opening. During installation, the conduit mounting structure 300 is pushed in from the opening of the second mounting groove 205 to achieve quick installation of the conduit on the second mounting plate 200. At the same time, when the conduit rotates and coils, the structure in which the inner bushing 302 of the conduit mounting structure 300 separates from the outer ring sleeve 301 during rotation can reduce the internal torque of the conduit during rotation and prevent it from twisting and breaking.

[0034] Further, see Figure 2 , Figure 3 , Figure 5 , Figure 8The outer ring sleeve 301 has limiting flanges 307 at both ends, and a limiting groove is formed between the limiting flanges 307 on the outer circumferential surface of the outer ring sleeve 301. When the conduit mounting structure 300 is pushed in through the opening of the mounting groove, the limiting groove cooperates with the mounting plates on both sides of the mounting groove to achieve axial and circumferential limiting. At the same time, the limiting flange 307 at at least one end of the outer ring sleeve 301 has a connecting hole 308. The first mounting plate 100 has first fixing holes 104 on both sides of the first mounting groove 103. The outer ring sleeve 301 is connected to the first mounting plate 100 by fasteners passing through the connecting hole 308 and the first fixing hole 104. Correspondingly, the second mounting plate 200 has second fixing holes 206 on both sides of the second mounting groove 205. The outer ring sleeve 301 is connected to the second mounting plate 200 by fasteners passing through the connecting hole 308 and the second fixing hole 206.

[0035] In some embodiments, see Figure 4 The first mounting plate 100 is provided with a variety of first mounting slots 103 of different widths, and the second mounting plate 200 is provided with a variety of second mounting slots 205 of different widths, for installation of different specifications of conduit installation structures 300.

[0036] In some embodiments, see Figure 1 , Figure 3 , Figure 9 , Figure 10 It also includes a protective cover 400, which is installed on the first mounting plate 100 and covers the outer periphery of the first mounting plate 100 and the second mounting plate 200; its function is to prevent the conduit from rubbing and cutting the machine tool column, and at the same time form a sealed cavity to prevent iron filings from entering.

[0037] The protective cover 400 includes multiple arc-shaped cover plates. The arc-shaped cover plates adopt a semi-circular thin plate structure. They are installed and connected to the threaded holes 105 on the edge of the first mounting plate 100 through threaded through holes on the upper part of the semi-circle. The multiple arc-shaped cover plates are spliced ​​together circumferentially on the outer side of the first mounting plate 100 and the second mounting plate 200.

[0038] In some embodiments, see Figure 3 , Figure 9 It also includes a mounting bracket 500, which is mounted on the first mounting plate 100. The mounting bracket 500 is a Z-shaped long rod with round holes at both ends. Its function is to fix the first mounting plate 100 at one end and fix the structure to the equipment, such as the column of a swivel head machine tool, at the other end.

[0039] Embodiments of the present invention also provide a swing head, including the conduit installation protection structure of any of the above embodiments. See also Figures 9-11The conduit installation and protection structure is secured to the machine tool's Z-axis casting with mounting screws. It is used for the installation and arrangement of conduits on the rotatable part of the spindle and the A-axis at the end of the swivel head. After the conduit installation and protection structure is installed, the protective cover 400 is removed. The second mounting plate 200 is positioned at the lowest point of the guide shaft 101 of the first mounting plate 100, and the mounting slots and holes of the first and second mounting plates 100 and 200 are aligned vertically. The mounting screws of the conduit installation structure 300 are removed, and the conduit installation structure 300 is taken out of the mounting slots of the first and second mounting plates 100. The arranged swivel head conduit is installed from the inside out onto the conduit installation structure 300 of the appropriate size. The conduit installation structure 300 is then installed back into the mounting slots of the first and second mounting plates 100. After ensuring the conduit remains vertical and untightly in the machine's conduit retainer, the conduit in the conduit installation structure 300 is secured with set screws 304. (See [link to relevant documentation]). Figure 10 All conduits are locked and installed in a one-to-one correspondence, ensuring that the conduits are not tangled or knotted. The second mounting plate 200 is positioned at the lowest point of the travel of the guide shaft 101 of the first mounting plate 100. At this point, the conduits of the entire machine are installed on the conduit fixing device.

[0040] During operation, the upper part of the conduit inside the column remains stationary and frictionless with the machine tool column under the locking of the first mounting plate 100. When the C-axis 600 of the swivel head rotates 360 degrees positive and negative, the second mounting plate 200 can move axially and in the rotational direction. The rotation of the cable exiting the swivel head drives the second mounting plate 200 to rotate. Therefore, the conduit between the swivel head and the second mounting plate 200 is in a relatively stationary state, ensuring that this part of the conduit does not knot or become taut during rotation. During the rotation of the C-axis 600 of the swivel head, the second mounting plate 200 rotates along with the conduit, and the internal conduit rotates as a whole around the axis. Because all the conduits are locked and installed in a one-to-one correspondence, the conduits can maintain a consistent rotational trend during rotation, preventing them from knotting or tangling. Furthermore, because the second mounting plate 200 can move axially, it will move with the conduit as it rotates and expands, ensuring that the conduit does not become taut or torn.

[0041] The present invention has the following advantages over the prior art: 1. Simple structure, low cost, and easy maintenance. The overall structure is simple, easy to disassemble, has no high-precision parts, and is economical.

[0042] 2. Easy to install and disassemble, increasing safety. While protecting the conduit, it also facilitates the installation and disassembly of the conduit, allowing for easy removal and maintenance at any time. Compared to the traditional method of tightly wrapping conduit for protection, this structure allows for easy identification of the conduit, making it easier to distinguish and maintain.

[0043] 3. Wide range of applications. This structure is suitable for all flange-mounted swing heads, whether suspended, side-mounted, or vertically mounted, and can meet the working conditions.

[0044] 4. Strong protection and high economic efficiency. This structure ensures that the oscillating head operates without tangling or twisting, avoiding cable stretching and fatigue damage. The independent protection assembly eliminates the need to disassemble the oscillating head body for maintenance and cable replacement, resulting in high maintenance efficiency. It significantly reduces the frequency of cable and connector replacements, lowering overall equipment operation and maintenance costs.

[0045] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A conduit installation protection structure, characterized in that, include: A first mounting plate is provided with a guide shaft, the guide shaft extending axially from the first mounting plate; The second mounting plate has a shaft hole, and the second mounting plate is mounted on the guide shaft through the shaft hole. The second mounting plate and the first mounting plate are axially spaced apart. The second mounting plate can rotate relative to the first mounting plate about the axis of the guide shaft, and can float relative to the first mounting plate along the axial direction of the guide shaft. The bearing and the floating bearing housing are provided, wherein the outer ring of the bearing is installed in the shaft hole of the second mounting plate, the inner ring of the bearing is installed in the floating bearing housing, and the floating bearing housing is fitted onto the guide shaft; The first and second mounting plates are both provided with conduit mounting structures. The conduit mounting structure includes an outer ring sleeve and an inner bushing. The outer ring sleeve and the inner bushing are U-shaped structures with axial notches. The inner bushing is nested inside the outer ring sleeve. The first mounting plate has a first mounting groove that extends toward the edge of the first mounting plate and forms an opening at the edge of the first mounting plate. The outer ring sleeve can be fitted into the first mounting groove through the opening of the first mounting groove. The second mounting plate has a second mounting groove that extends toward the edge of the second mounting plate and forms an opening at the edge of the second mounting plate. The outer ring sleeve can be fitted into the second mounting groove through the opening of the second mounting groove.

2. The conduit installation protection structure according to claim 1, characterized in that, The guide shaft is provided with a limiting structure to restrict the axial floating stroke of the second mounting plate. The limiting structure includes a straight slot through hole provided in the guide shaft, and the floating bearing seat is provided with a fixing pin passing through the straight slot through hole.

3. The conduit installation protection structure according to claim 1, characterized in that, The conduit installation structure also includes an adjusting pad disposed inside the inner bushing. The inner bushing has a radial screw hole, and a set screw that abuts against the adjusting pad is disposed in the radial screw hole. Multiple adjusting pads are disposed inside the inner bushing and are distributed circumferentially along the inner hole of the inner bushing. Each adjusting pad has a set screw on its back side.

4. The conduit installation protection structure according to claim 1, characterized in that, The outer ring sleeve has an axial stepped surface in its inner hole, and the inner bushing is axially assembled to the axial stepped surface. The outer ring sleeve has a C-shaped spacer in its inner hole, and the C-shaped spacer is radially supported at both ends of the inner bushing.

5. The conduit installation protection structure according to claim 1, characterized in that, The outer ring sleeve has limiting flanges at both ends, and a limiting groove is formed between the limiting flanges on the outer circumferential surface of the outer ring sleeve. A connecting hole is provided on the limiting flange at at least one end of the outer ring sleeve. The first mounting plate has first fixing holes on both sides of the first mounting groove. The outer ring sleeve is connected to the first mounting plate by fasteners passing through the connecting holes and the first fixing holes. The second mounting plate has second fixing holes on both sides of the second mounting groove. The outer ring sleeve is connected to the second mounting plate by fasteners passing through the connecting holes and the second fixing holes.

6. The conduit installation protection structure according to claim 1, characterized in that, The first mounting plate has a variety of first mounting slots of different widths, and the second mounting plate has a variety of second mounting slots of different widths.

7. The conduit installation protection structure according to claim 1, characterized in that, It also includes a protective cover, which is installed on the first mounting plate and covers the circumferential outer side of the first and second mounting plates. The protective cover includes multiple arc-shaped cover plates, which are circumferentially assembled on the outer side of the first mounting plate and the second mounting plate. It also includes a mounting bracket, which is mounted on the first mounting plate.

8. A head-swinging mechanism, characterized in that, Includes the conduit installation protection structure as described in any one of claims 1 to 7.

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