Drag chain support device and industrial equipment

Abstract

The utility model is a towline support device and industrial equipment, belonging to the field of machining equipment. Its technical solution is: a towline support device, including a support frame, two groups of support components are relatively arranged in the support frame, the support component includes a swing arm component, the lower end of the swing arm component is hinged to the support frame, and the upper end of the swing arm component is provided with a floating head, the two floating heads are relatively arranged, and an elastic member is also provided between the opposite sides of the two floating heads and the support frame. The beneficial effect of the utility model is that the floating head is arranged in a swinging and telescopic form, and when the towline passes through the bending position, the bottom surface of the floating head is tilted upward under the drive of the towline, reducing the contact angle between the towline and the floating head, making the contact transition between the two smoother, reducing the wear on the towline, and not easy to get stuck at the seam position of the towline chain link, so that the towline runs more smoothly.

Description

Technical Field

[0001] The utility model relates to the field of machining equipment, in particular to a drag chain supporting device and an industrial equipment. Background Art

[0002] In automated equipment such as laser cutting machines and CNC machining centers, the lines from the bed to the axis motion system, machine head and other moving parts are usually stored in drag chains. Drag chains are used in situations where linear reciprocating motion occurs. They can pull and protect the built-in cables, oil pipes, and air pipes, isolating them from external body parts to prevent interference and damage.

[0003] As the processing width requirements of various processing equipment become larger and larger, the travel of the drag chain becomes longer. Due to gravity and load-bearing reasons, the drag chain will sag. In the area where the drag chain is bent and overlapped into two layers, the drag chain sags too much, causing contact friction between the two layers of the drag chain, resulting in wear on the drag chain surface or jamming of parts joints.

[0004] In order to prevent the drag chain from sagging and affecting its movement, it is usually necessary to add a support device to the drag chain to separate the upper and lower layers of the drag chain. At present, most of the drag chain support devices are installed on a bracket and perform lateral elastic expansion and contraction, so that when the drag chain is dragged, the support part of the support device can retract to allow the drag chain to pass. However, when the drag chain passes, the edge corners of the drag chain and the edge corners of the support part of this telescopic structure are usually in contact at one point, and the segmented hinged structure of the drag chain has many seams at the edge position, which will cause jamming problems and cause serious wear on the seams of the drag chain links. Summary of the invention

[0005] The utility model provides a drag chain supporting device to solve the problem that the current drag chain supporting structure is easy to wear and get stuck with the edge of the drag chain.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a towline support device, including a support frame, two groups of support components are relatively arranged in the support frame, the support component includes a swing arm component, the lower end of the swing arm component is hinged to the support frame, and the upper end of the swing arm component is provided with a floating head, the two floating heads are relatively arranged, and an elastic member is also provided between the opposite sides of the two floating heads and the support frame. This solution sets the floating head in a swinging and telescopic form. When the towline passes through the bending position, the bottom surface of the floating head tilts upward under the drive of the towline, reducing the contact angle between the towline and the floating head, making the contact transition between the two smoother, reducing the wear on the towline, and not easy to get stuck at the seam position of the towline chain link, so that the towline runs more smoothly.

[0007] Preferably, the floating head is incompletely cylindrical, and the outer peripheral surface includes an arc surface and a flat surface. The arc surfaces of the two floating heads are arranged opposite to each other, the elastic member is connected to the flat surface, and the upper end of the swing arm assembly is connected to the bottom end surface of the floating head. When the lower layer of the drag chain enters the supporting device, the bending position of the drag chain contacts the arc surface to reduce wear and jamming.

[0008] Preferably, a mounting window is provided in the floating head along its axial direction, the mounting window is arranged close to the arc surface, a supporting roller is arranged in the mounting window, the rotation plane of the supporting roller is parallel to the plane portion, and the outer peripheral surface of the supporting roller protrudes from the upper end surface or the upper and lower end surfaces of the floating head. When the floating head supports the upper drag chain, the supporting roller contacts the drag chain, and the roller rolls to eliminate sliding friction when the drag chain is dragged, thereby reducing wear on the drag chain.

[0009] Preferably, the support frame includes a lower support plate, the upper surface of the lower support plate is provided with an articulated seat, the swing arm assembly includes at least two swing rods, the lower ends of the swing rods are commonly connected to a rotating shaft, the rotating shaft is rotatably mounted on the articulated seat, the upper ends of the swing rods are commonly connected to a connecting plate, and the connecting plate is fixedly connected to the lower end surface of the floating head. The swing arm assembly adopts a frame structure, which is stable and has a good supporting effect.

[0010] Preferably, the upper end of the swing rod is inclined toward the relatively protruding directions of the two floating heads.

[0011] Preferably, a bearing is provided between the rotating shaft and the hinge seat, so that the swing arm assembly can swing more smoothly and sensitively.

[0012] Preferably, the elastic member is a coil spring, and the two ends of the coil spring are respectively connected to the floating head and the support frame. The coil spring can achieve torsion reset and has strong flexibility.

[0013] Preferably, the support frame includes two upper boxes, the bottom and opposite surfaces of the upper boxes are open, and the two floating heads are respectively located in the two upper boxes; corresponding to each floating head, at least two coil springs are provided, and the two ends of the coil springs are respectively connected to the side plates of the upper boxes and the back of the floating head. Multiple coil springs jointly support the floating head to improve the supporting capacity.

[0014] Preferably, it also includes an outer shell, in which the support frame and the support assembly are both arranged, the outer shell has raised parts on both sides, the two support assemblies are respectively located in the raised parts, the opposite surfaces of the raised parts are respectively provided with windows, the opposite ends of the two floating heads are located in the windows and protrude from the opposite surfaces of the two raised parts.

[0015] On the other hand, the utility model further provides an industrial equipment, including a fixed component and a movable component, a drag chain is arranged between the fixed component and the movable component, and a plurality of the above-mentioned drag chain supporting devices are arranged in the bending area of ​​the drag chain.

[0016] It can be seen from the above technical scheme that the advantages of the utility model are as follows: this scheme changes the traditional translational extension and contraction into swinging, so that when the drag chain withdraws from supporting the supporting device, the bending position of the drag chain passes through the floating head, and the floating head is in an inclined state during the retreat process, which reduces the contact angle between the drag chain and the floating head, reduces the wear on the drag chain, and at the same time, the chain link connection position of the drag chain is not easy to get stuck, and the drag chain runs more smoothly; when the drag chain enters the supporting device, it contacts the arc-shaped outer peripheral surface of the floating head, which makes it easier to push the floating head to swing back; at the same time, the drag chain and the upper surface of the floating head are in rolling contact through the support roller, which avoids sliding friction during the operation of the drag chain, making the drag chain run more smoothly and not easy to wear; through the structural design of the supporting device, the supporting device has good supporting effect, sensitive retreat action and is easy to use; at the same time, the industrial equipment provided by the utility model, in which the drag chain is not easy to be damaged, runs smoothly and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the support assembly in a specific implementation manner of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the outer shell in a specific implementation manner of the utility model.

[0021] Description of main reference numerals

[0022] 1. Support frame, 2. Swing arm assembly, 3. Floating head, 4. Lower support plate, 5. Bearing, 6. Coil spring, 7. Upper box body, 8. Outer shell, 9. Support roller. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] Embodiment 1

[0025] This embodiment provides a drag chain support device, such as Figure 1-3 As shown, it includes an outer shell 8, a support frame 1 and two sets of support components installed on the support frame and located inside the outer shell 8. The structure of the outer shell 8 is as shown in Figure 3 As shown, the bottom is a flat plate structure, which can be used as a part of the support frame 1. Two raised parts are provided on the upper surface of the flat plate. The raised parts are arranged opposite to each other at a certain distance. The raised parts are hollow inside. Two groups of support components are respectively installed in the two raised parts. Specifically:

[0026] Corresponding to each group of support components, the support frame 1 includes a lower support plate 4 and an upper box body 7. The shape of the lower support plate 4 is adapted to the horizontal cross-section of the raised portion. The lower support plate 4 is installed at the lower part of the inside of the raised portion, and a support rib is provided between its bottom surface and the inner side wall of the raised portion. Two hinge seats are provided on the upper surface of the lower support plate 4. The support component includes a swing arm component 2 and a floating head 3 installed on the upper end of the swing arm component. The swing arm component 2 includes two mutually parallel swing rods, and the lower ends of the swing rods are commonly connected to a rotating shaft, the rotating shaft is perpendicular to the swing rods, and the two ends of the rotating shaft are respectively rotatably installed on two hinge seats, and a bearing 5 is provided between the rotating shaft and the hinge seat; the upper ends of the two swing arms are commonly connected to a connecting plate, and the floating head 3 is installed on the connecting plate.

[0027] like Figure 2 As shown, the floating head is an incomplete cylinder, that is, it is a cylindrical structure with a circular cross section whose corresponding central angle is no more than 180°. Furthermore, the side circumference of the floating head 3 includes an arc surface portion which is a rectangle after unfolding and a rectangular plane portion. The above-mentioned connecting plate is fixedly connected to the bottom end face of the floating head 3. One side surface and the bottom surface of the upper box body 7 are open. The upper box body 7 is installed on the top of the raised portion. The floating head 3 is located in the upper box body 7. The arc surface portion of the floating head faces and protrudes from the open side surface of the upper box body 7. Furthermore, the floating head 3 can swing in the open space formed by the side surface, bottom surface and interior of the upper box body 7. The floating head An elastic member is provided between the plane portion of 3 and the inner wall of the opposite side of the open side in the upper box body 7. In the present embodiment, the elastic member is a coil spring 6, and three of them are arranged in parallel in the direction of the chord of the cross-section of the floating head. The two ends of the coil spring 6 are respectively connected to the plane portion and the side of the upper box body 7. The upper end of the swing rod is inclined toward the relative protrusion direction of the two floating heads, so that the main swing direction of the floating head is upward swinging, and the amplitude of its downward swinging is limited to ensure its supporting effect on the drag chain. Windows are respectively provided on the opposite sides of the raised parts, and the opposite ends of the two floating heads are located in the windows and protrude from the opposite sides of the two raised parts.

[0028] Further, such as Figure 1 , 2As shown, an installation window is opened in the floating head along its axial direction, and the installation window is set close to the arc surface. A support roller 9 is arranged in the installation window. The rotation plane of the support roller 9 is parallel to the plane portion, and the outer peripheral surface of the support roller 9 protrudes from the upper end surface of the floating head 3.

[0029] Embodiment 2

[0030] Based on the drag chain support device provided in the first embodiment, this embodiment further provides an industrial equipment, including a fixed component and a movable component, wherein a drag chain is arranged between the fixed component and the movable component, for example, a laser cutting machine, wherein a drag chain is arranged between the bed and the crossbeam; or various horizontal machine tools, wherein a drag chain is arranged between the bed and the machine head, etc. The bending area of ​​the drag chain is provided with a plurality of the drag chain support devices described in the first embodiment.

[0031] It is well known to those skilled in the art that a horizontally arranged drag chain has a transverse U-shaped structure during operation, and is provided to include an upper section, a lower section and a bending position between the upper section and the lower section. The working process of the utility model is as follows: the bottom plate of the support frame between the two protrusions supports the lower section of the drag chain, and two floating heads 3 (with supporting rollers thereon) support the upper section of the drag chain. When the drag chain enters the supporting device, the outer side of the bending position of the drag chain contacts the arc surface of the floating head, pushing the floating head to swing back to both sides, and the floating head rebounds after passing the bending position and is supported on the bottom of the upper section of the drag chain; when the drag chain leaves the supporting device, the bending position "rolls" to one side of the floating head, the lower section of the drag chain moves upward, and the floating head is lifted upward, the floating head swings and retracts into the window, and rebounds to reset after the drag chain leaves.

[0032] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the present scheme changes the traditional translational extension and contraction into a swinging motion, so that when the drag chain withdraws from supporting the supporting device, the bending position of the drag chain passes through the floating head, and the floating head is in an inclined state during the retreat process, thereby reducing the contact angle between the drag chain and the floating head, reducing the wear on the drag chain, and at the same time, the chain link connection position of the drag chain is not easy to get stuck, and the drag chain runs more smoothly; when the drag chain enters the supporting device, it contacts the arc-shaped outer peripheral surface of the floating head, which makes it easier to push the floating head to swing back; at the same time, the drag chain and the upper surface of the floating head are in rolling contact through the support rollers, avoiding sliding friction during the operation of the drag chain, making the drag chain run more smoothly and less prone to wear; through the structural design of the supporting device, the supporting device has good supporting effect, sensitive retreat action, and is easy to use; at the same time, the industrial equipment provided by the utility model, in which the drag chain is not easy to be damaged, runs smoothly, and has a longer service life.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drag chain support device, comprising a support frame (1), characterized in that: Two groups of support components are arranged opposite to each other in the support frame (1), and the support components include a swing arm component (2), the lower end of the swing arm component (2) is hinged to the support frame (1), and the upper end of the swing arm component (2) is provided with a floating head (3), the two floating heads (3) are arranged opposite to each other, and an elastic member is further provided between the opposite sides of the two floating heads (3) and the support frame (1).

2. The drag chain support device according to claim 1, characterized in that: The floating head (3) is in an incomplete cylindrical shape, and its outer peripheral surface comprises an arc surface and a flat surface. The arc surfaces of the two floating heads (3) are arranged opposite to each other, the elastic member is connected to the flat surface, and the upper end of the swing arm assembly (2) is connected to the bottom end surface of the floating head (3).

3. The drag chain support device according to claim 2, characterized in that: The floating head has an installation window extending through it along its axial direction, the installation window being arranged close to the arc surface portion, a support roller (9) being arranged in the installation window, the rotation plane of the support roller (9) being parallel to the plane portion, and the outer peripheral surface of the support roller (9) protruding from the upper end surface or the upper and lower end surfaces of the floating head (3).

4. The drag chain support device according to claim 1, characterized in that: The support frame (1) comprises a lower support plate (4), the upper surface of the lower support plate (4) is provided with a hinge seat, the swing arm assembly (2) comprises at least two swing rods, the lower ends of the swing rods are commonly connected to a rotating shaft, the rotating shaft is rotatably mounted on the hinge seat, the upper ends of the swing rods are commonly connected to a connecting plate, and the connecting plate is fixedly connected to the lower end surface of the floating head.

5. The drag chain support device according to claim 4, characterized in that: The upper end of the swing rod is inclined toward the relatively protruding directions of the two floating heads.

6. The drag chain support device according to claim 4, characterized in that: A bearing (5) is provided between the rotating shaft and the hinge seat.

7. The drag chain support device according to claim 1, characterized in that: The elastic member is a coil spring (6), and two ends of the coil spring (6) are respectively connected to the floating head and the support frame (1).

8. The drag chain support device according to claim 7, characterized in that: The support frame (1) comprises two upper box bodies (7), the bottom and opposite surfaces of the upper box bodies (7) are open, and the two floating heads (3) are respectively located in the two upper box bodies (7); corresponding to each floating head, at least two coil springs are provided, and the two ends of the coil spring are respectively connected to the side plate of the upper box body (7) and the back of the floating head.

9. The drag chain support device according to claim 1, characterized in that: It also includes an outer shell (8), the support frame (1) and the support assembly are both arranged in the outer shell, the outer shell (8) has raised portions on both sides, the two support assemblies are respectively located in the raised portions, the opposite surfaces of the raised portions are respectively provided with windows, the opposite ends of the two floating heads are located in the windows and protrude from the opposite surfaces of the two raised portions.

10. An industrial device comprising a fixed part and a moving part, characterized in that: A drag chain is provided between the fixed component and the movable component, and a plurality of drag chain support devices according to any one of claims 1 to 9 are provided in the bending area of ​​the drag chain.

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