Outgoing line structure of gantry swing head

Abstract

The utility model discloses a wire outlet structure of a gantry swing head, and relates to the technical field of machine tools. The wire outlet structure comprises a ram and a swing head installed at the lower end of the ram and further comprises a cable drag chain, the upper end of the cable drag chain is fixedly connected with the upper end of the ram, and the lower end of the cable drag chain is connected with a C-axis rotating part of the swing head. A rotating cable of the swing head penetrates out of the cable drag chain and then is fixed, and the cable drag chain is used for enabling the rotating cable to twist around the center line of the cable drag chain. The cable drag chain is arranged in the ram, the rotating cable at the tail end of the swing head penetrates into the cable drag chain, the cable drag chain is high in flexibility, the rotating cable is guided to be led out, it is guaranteed that the rotating cable rotates along with the swing head and is separated from a fixed pipeline, and abrasion is prevented.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a cable exit structure for a gantry swing head. Background Technology

[0002] The swivel head of a gantry machining center is one of its core components, playing a crucial role in achieving multi-axis motion and complex cutting operations. Composed of multiple rotary axes, the swivel head controls the tool to perform precise cutting at different angles and directions, providing highly flexible cutting capabilities. This allows for the machining of curved surfaces, inclined surfaces, and parts with complex geometries. The swivel head contains numerous cables and conduits for controlling the movement of the swivel head and spindle, as well as for motion detection. The fixed conduit at the tail end of the swivel head is mounted on the C-axis fixed section and does not rotate. The rotating cable at the tail end of the swivel head exits the C-axis rotating section and rotates with the C-axis. To prevent damage to the rotating cable at the tail end of the swivel head and to prevent wear or entanglement between the rotating cable and the fixed conduit, a cable exit structure needs to be designed to prevent cable twisting and subsequent malfunctions. Utility Model Content

[0003] This utility model provides a cable exit structure for a gantry swing head to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A cable exit structure for a gantry swing head includes a slide and a swing head mounted on the lower end of the slide, and also includes a cable drag chain. The upper end of the cable drag chain is fixedly connected to the upper end of the slide, and the lower end is connected to the C-axis rotating part of the swing head. The rotating cable of the swing head passes through the cable drag chain and is fixed. The cable drag chain is used to rotate the cable around the center line of the cable drag chain.

[0006] Preferably, the upper end of the cable drag chain is fixedly connected to the upper end of the slide block via a first mounting bracket.

[0007] Preferably, an adapter plate is fixedly provided at the upper end of the slide block, and the upper end of the cable drag chain is fixedly connected to the adapter plate through a first mounting bracket.

[0008] Preferably, the adapter plate is also provided with a cable fixing bracket, and the cable fixing bracket is provided with several cable clamps.

[0009] Preferably, a second mounting bracket is installed at the lower end of the cable drag chain, and the second mounting bracket is connected to the C-axis rotating part of the swing head.

[0010] Preferably, the slide block is provided with a cable chain bracket inside, and the lower end of the cable cable is fixedly connected to the cable chain bracket through a second mounting bracket. The cable chain bracket is connected to the C-axis rotating part of the swing head.

[0011] Preferably, a cable outlet cover is fixedly connected to the lower end of the cable chain bracket, a cable outlet box is fixedly connected below the cable outlet cover, and a bearing inner ring cover is fixedly connected below the cable outlet box. The bearing inner ring cover is sleeved and fixed on the C-axis mandrel of the swing head, and the bearing inner ring cover abuts against the inner ring of the bearing set on the C-axis mandrel of the swing head.

[0012] Preferably, the cable drag chain is further provided with one or more sliding guide components, which are fixedly connected to the slide block.

[0013] Preferably, one or more fixed conduits are also fixed on the swing head, and the fixed conduits are fixed cables and / or pipes that pass through the C-axis fixed part of the swing head.

[0014] Beneficial effects:

[0015] The cable exit structure of the gantry swing head disclosed in this application is achieved by setting a cable drag chain in the slide block, through which the rotating cable at the tail end of the swing head is threaded. Taking advantage of the high flexibility of the cable drag chain, the rotating cable is guided to exit, ensuring that the rotating cable rotates with the swing head and is separated from the fixed pipeline to prevent wear. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cable exit structure of a gantry swing head disclosed in this utility model;

[0018] Figure 2 for Figure 1 Sectional view of AA;

[0019] Figure 3 for Figure 1 A magnified view of part B in the image;

[0020] Figure 4 for Figure 2 A magnified view of part C;

[0021] Figure 5 This utility model discloses a schematic diagram of the chain link assembly of a cable drag chain for a gantry swing head cable exit structure. Figure 1 ;

[0022] Figure 6 This utility model discloses a schematic diagram of the chain link assembly of a cable drag chain for a gantry swing head cable exit structure. Figure 2 .

[0023] 1. Slide ram; 2. Swing head; 3. Cable drag chain; 31. First mounting bracket; 32. Second mounting bracket; 33. Sliding guide component; 34. Sliding guide component bracket; 351. Connecting base; 352. Left connecting part; 353. Left ring part; 354. Left inner spherical surface; 355. Right connecting part; 356. Right ring part; 357. Right inner spherical surface; 358. Left process hole; 359. Right process hole; 360. Left limiting boss; 361. Right limiting boss; 41. Adapter plate; 42. Upper support column; 5. Cable fixing bracket; 51. Cable clamp; 52. Cable fixing bracket; 53. Cable clamp fixing bracket; 54. C-groove; 61. Drag chain bracket; 62. Cable outlet cover plate; 63. Cable outlet box; 64. Bearing inner ring cover; 65. Lower support column; 7. Fixed pipeline; 71. Pipe joint. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] A cable exit structure for a gantry swing head, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the device includes a slide ram 1 and a swing head 2 installed at the lower end of the slide ram 1, as well as a cable drag chain 3. The upper end of the cable drag chain 3 is fixedly connected to the upper end of the slide ram 1, and the lower end is connected to the C-axis rotating part of the swing head 2. The rotating cable of the swing head 2 passes through the cable drag chain 3 and is fixed. The cable drag chain 3 is used to rotate the rotating cable around the center line of the cable drag chain 3. According to the stroke of the swing head and the rotation angle of each section of the cable drag chain 3, a corresponding model of drag chain is selected; and a corresponding length of rotating cable is set so that the rotating cable is longer than the length of the cable drag chain 3, so as to ensure that the rotating cable follows the rotation of the cable drag chain 3 and rotates around the center line of the cable drag chain 3. By setting the cable drag chain 3 inside the slide ram 1, the upper end of the cable drag chain 3 is fixedly connected to the upper end of the slide ram 1, the lower end rotates with the C-axis rotating part of the swing head 2, and the rotating cable at the tail end of the swing head passes through the cable drag chain 3 and is fixed. By utilizing the rotation of each section of the cable drag chain 3, the lower end of the rotating cable at the tail end of the swing head rotates with the swing head, while the upper end is fixed to connect to the outside. Utilizing the high flexibility of the cable drag chain 3, the cable is guided outwards, ensuring that the cable will not twist or be damaged while rotating with the swing head, and keeping the rotating cable separate from the fixed conduit to prevent wear. The ball-and-socket joint of the cable drag chain 3 absorbs a large amount of tension, thus achieving smooth operation. The cable drag chain 3 has a simple opening mechanism, making it easy to load and replace cables. The cable drag chain 3 has a small bending radius and pitch, saving installation space and making full use of the space within the ram 1.

[0026] Specifically, the cable drag chain 3 is selected from Igus. R TRE series.

[0027] A cable drag chain includes multiple link groups connected in series along the length of the cable drag chain. Each single link group includes a left link, a right link, and a connecting ball group. The connecting ball group includes a spherical connecting base 351, a ball connecting portion extending from the connecting base 351, and two left and right limiting protrusions. The left link includes a left loop portion 353 fixedly connected to a left connecting portion 352. The connecting ball group is fixedly connected to the left connecting portion 352 through the ball connecting portion. The left connecting portion 352 has a left inner spherical surface 354 that mates with the spherical surface of the connecting base 351 on the side away from the fixed connection with the ball connecting portion. The right link includes a right loop portion 356 fixedly connected to a right connecting portion 355. The right connecting portion 355 has a right inner spherical surface 357 that mates with the spherical surface of the connecting base 351. The left inner spherical surface 354 and the right inner spherical surface 357 form a ball-and-socket structure.

[0028] The left connecting part 352 and the right connecting part 355 are detachably connected for easy installation;

[0029] The left ring 353 and the right ring 356 are symmetrically arranged arc-shaped rings on the left and right sides of the connecting base 351. The outer wall of the upper end of the left ring 353 is in spherical fit with the inner wall of the lower end of the left ring 353, or the inner wall of the upper end of the left ring 353 is in spherical fit with the outer wall of the lower end of the left ring 353.

[0030] The left connecting part 352 and the right connecting part 355 are respectively provided with a left process hole 358 and a right process hole 359 whose axial direction is the same as the length direction of the cable drag chain.

[0031] When the left connecting part 352 and the right connecting part 355 are fastened together, they form a fan-shaped upper cable hole and a lower cable hole.

[0032] When connected in series, the outer left ring 353 of two adjacent single link groups forms a spherical fit with the left limiting boss 360, and the right ring 356 forms a spherical fit with the right limiting boss 361. The inner parts of the two adjacent single link groups also form a spherical fit, allowing the two adjacent single link groups to rotate relative to each other about the length direction of the cable drag chain, thereby achieving the torsion of the cable drag chain. At the same time, the drag chain formed by the series connection of the two adjacent single link groups swings relative to each other about the center of the ball of the connecting base 351 in a plane parallel to the axis of the cable drag chain, thereby achieving the bending of the cable drag chain. Moreover, the bending can be in any direction, thus meeting the multi-degree-of-freedom requirement of the cable drag chain.

[0033] Preferably, the upper end of the cable drag chain 3 is fixedly connected to the upper end of the slide block 1 through the first mounting bracket 31, so as to achieve reliable fixation of the upper end of the cable drag chain 3.

[0034] Specifically, the first mounting bracket 31 can be selected from igus lightweight mounting brackets and standard mounting brackets, etc. In this embodiment, the first mounting bracket 31 is selected from igus with stress-relieving elements. R-type lightweight mounting bracket with stress-relieving elements The R-type lightweight mounting bracket is lightweight and its two-part structure makes it easy to install.

[0035] Preferably, an adapter plate 41 is fixedly provided at the upper end of the slide ram 1, and the upper end of the cable drag chain 3 is fixedly connected to the adapter plate 41 through the first mounting bracket 31. Since the upper end of the slide ram 1 has an opening that makes it inconvenient to fix the first mounting bracket 31, the adapter plate 41 is added to fix the first mounting bracket 31.

[0036] Specifically, the upper end of the slide block 1 is fixed with multiple upper support columns 42 by threaded connection. The multiple upper support columns 42 support the adapter plate 41, and the upper ends of the upper support columns 42 are connected to the adapter plate 41 by threaded connection or screw connection. Furthermore, the outer peripheral surface of the upper support columns 42 is machined into a hexagon for the installation of the upper support columns 42.

[0037] Preferably, the adapter plate 41 is further provided with a cable fixing frame 5, and the cable fixing frame 5 is provided with a plurality of cable clamps 51. The cable clamps 51 are used to fix the rotating cable that passes through the swing end of the cable drag chain 3, so as to prevent the cable from moving longitudinally or twisting.

[0038] Specifically, the cable fixing bracket 5 includes two cable fixing supports 52, a cable clamp fixing bracket 53, and a C-groove 54 arranged opposite to each other. The two cable fixing supports 52 are located on both sides of the first mounting bracket 31, and the two cable fixing supports 52 correspond to the connection positions of the two halves of the first mounting bracket 31, facilitating the installation and removal of the first mounting bracket 31. The two cable fixing supports 52 are fixed to the adapter plate 41 by a first set of screws, and the two cable fixing supports 52 support the cable clamp fixing bracket 53. The cable clamp fixing bracket 53 is fixed to the top of the cable fixing supports 52 by a second set of screws. The C-groove 54 is fixed to the side of the cable clamp fixing bracket 53 by a third set of screws, and the cable clamp 51 is installed in the C-groove 54. In this embodiment, the cable clamp 51 is an igus Chainfix stress-relieving cable clamp, specifically the CFX series cable clamp, which has a large contact area, stable locking, high strength, and reliable locking.

[0039] Preferably, a second mounting bracket 32 ​​is installed at the lower end of the cable drag chain 3, and the second mounting bracket 32 ​​is connected to the C-axis rotating part of the swing head 2. The second mounting bracket 32 ​​rotates with the C-axis rotating part of the swing head 2, thereby driving each section of the cable drag chain 3 to rotate, thus ensuring that the rotating cable at the tail end of the swing head rotates with the swing head without being damaged. In this embodiment, the second mounting bracket 32 ​​is selected from Igus with stress-relieving elements. R Lightweight mounting bracket.

[0040] Preferably, the slide block 1 is provided with a cable chain bracket 61 inside. The lower end of the cable cable chain 3 is fixedly connected to the cable chain bracket 61 through the second mounting bracket 32. The cable chain bracket 61 is connected to the C-axis rotating part of the swing head 2. The cable chain bracket 61 is used to organize and bundle the rotating cable at the tail end of the swing head. By threading the organized and bundled rotating cable at the tail end of the swing head into the cable cable chain 3, it is possible to prevent the rotating cables at the tail end of the swing head from getting tangled together.

[0041] Specifically, multiple lower support columns 65 are fixed to the cable chain bracket 61 via threaded connections. These lower support columns 65 support the second mounting bracket 32, and the upper ends of the lower support columns 65 are connected to the second mounting bracket 32 ​​via screws. Furthermore, the outer circumferential surface of the lower support columns 65 is machined into a hexagonal shape (not shown in the figure) for installation.

[0042] Preferably, a cable outlet cover 62 is fixedly connected to the lower end of the cable chain bracket 61, a cable outlet box 63 is fixedly connected below the cable outlet cover 62, and a bearing inner ring cover 64 is fixedly connected below the cable outlet box 63. The bearing inner ring cover 64 is sleeved and fixed on the C-axis mandrel of the swing head 2, and the bearing inner ring cover 64 abuts against the inner ring of the bearing provided on the C-axis mandrel of the swing head 2. When the C-axis mandrel of the swing head 2 rotates, the bearing inner ring cover 64 rotates with the C-axis mandrel, thereby driving the cable outlet box 63, the cable outlet cover 62, the cable chain bracket 61, and the second mounting bracket 32 ​​to rotate.

[0043] Specifically, a cable outlet cover 62 has a cable threading hole, and a cable fixing head is installed on the cable outlet cover 62. After the rotating cable at the end of the swing head is straightened, it is threaded into the cable outlet box 63, and then threaded into the cable carrier bracket 61 through the cable fixing head. The cable outlet box 63, the cable outlet cover 62, and the cable carrier bracket 61 are used to straighten the rotating cable at the end of the swing head.

[0044] Preferably, the cable drag chain 3 is further provided with one or more sliding guide components 33, the number of which is set according to the length of the cable drag chain 3, and the sliding guide components 33 are fixedly connected to the slide block 1. The sliding guide components 33 are used to guide the cable drag chain 3.

[0045] Specifically, the sliding guide component 33 is selected from Igus with a rotary bearing. R is a sliding guide component, and the sliding guide component 33 is connected to the sliding guide component bracket 34. The sliding guide component bracket 34 is mounted on the inner wall of the slide block 1. It has a rotary bearing. The R-sliding guide component makes the cable drag chain 3 more flexible in its guidance.

[0046] Preferably, one or more fixed conduits 7 are also fixed on the swing head 2. The fixed conduits 7 are fixed cables and / or pipes that pass through the C-axis fixed part of the swing head 2.

[0047] Specifically, when the fixed conduit 7 is a pipe, a pipe connector 71 is provided at the position where the fixed conduit 7 exits the swing head 2. The upper end of the fixed conduit 7 passes through the opening at the upper end of the slide block 1 and is connected to the adapter plate 41 through the pipe connector 71. When the fixed conduit 7 is a cable, the fixed conduit 7 passes through the adapter plate 41 and is fixed by a cable fixing head.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cable exit structure for a gantry swing head, comprising a slide (1) and a swing head (2) mounted on the lower end of the slide (1), characterized in that, It also includes a cable drag chain (3), the upper end of which is fixedly connected to the upper end of the slide block (1), and the lower end is connected to the C-axis rotating part of the swing head (2); the rotating cable of the swing head (2) passes through the cable drag chain (3) and is fixed thereafter, and the cable drag chain (3) is used for the rotating cable to twist around the center line of the cable drag chain (3); The upper end of the cable drag chain (3) is fixedly connected to the upper end of the slide block (1) through the first mounting bracket (31); The upper end of the slide block (1) is fixedly provided with an adapter plate (41), and the upper end of the cable drag chain (3) is fixedly connected to the adapter plate (41) through the first mounting bracket (31). The lower end of the cable drag chain (3) is equipped with a second mounting bracket (32), which is connected to the C-axis rotating part of the swing head (2). The slide block (1) is provided with a cable chain bracket (61) inside. The lower end of the cable cable chain (3) is fixedly connected to the cable chain bracket (61) through the second mounting bracket (32). The cable chain bracket (61) is connected to the C-axis rotating part of the swing head (2).

2. The cable exit structure of a gantry swing head according to claim 1, characterized in that, The adapter plate (41) is also provided with a cable fixing frame (5), and the cable fixing frame (5) is provided with a number of cable clamps (51).

3. The cable exit structure of a gantry swing head according to claim 1, characterized in that, The lower end of the drag chain bracket (61) is fixedly connected to a cable outlet cover plate (62), and a cable outlet box (63) is fixedly connected below the cable outlet cover plate (62). A bearing inner ring cover (64) is fixedly connected below the cable outlet box (63). The bearing inner ring cover (64) is sleeved and fixed on the C-axis mandrel of the swing head (2). The bearing inner ring cover (64) abuts against the inner ring of the bearing set on the C-axis mandrel of the swing head (2).

4. The cable exit structure of a gantry swing head according to claim 1, characterized in that, The cable drag chain (3) is also provided with one or more sliding guide components (33), which are fixedly connected to the slide block (1).

5. The cable exit structure of a gantry swing head according to claim 1, characterized in that, The swing head (2) is also fixed with one or more fixed pipelines (7), which are fixed cables and / or pipes that pass through the C-axis fixed part of the swing head (2).

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