Rotary drag chain supporting frame

Abstract

The utility model discloses a rotary drag chain supporting frame which comprises a cylinder barrel, the cylinder barrel is arranged on the lateral lower portion of a drag chain and fixedly connected with a machine tool, a gland is fixedly arranged at the top of the cylinder barrel, a plunger rod is tightly attached to the interior of the cylinder barrel, a sealing ring is arranged between the plunger rod and the cylinder barrel, and an air inlet hole is formed in one side of the bottom of the cylinder barrel. An air outlet hole is formed in one side of the top of the cylinder barrel, a supporting rod is fixedly arranged at the end, away from the air inlet hole, of the plunger rod, the exterior of the supporting rod is rotationally connected with a drag chain carrier roller, and a rotating assembly used for enabling the plunger rod to rotate is further arranged between the cylinder barrel and the plunger rod. The service life is prolonged, and the device can adapt to a narrow space in a machine tool and avoid a drag chain which travels back and forth.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine tool production technology field, concretely is a rotary tow chain support frame. BACKGROUND

[0002] With the requirement of high -efficient production of mechanical automation equipment, the tow chain cable cannot be separated from the use on the gantry milling machine, machining center, boring and milling machine, vertical lathe and other machine tools, and it is a kind of high flexibility special cable that can move back and forth with tow chain and is not easy to wear. The tow chain is composed of a plurality of unit links, each unit link is freely rotatable within a certain range with adjacent unit links, wraps the internal cable, avoids that the cable is directly exposed to the external environment, reduces the risk of cable wear, breakage and damage. In addition, the tow chain helps to improve the stability and reliability of the equipment, arranges the cable in order by standardizing and arranging the cable, avoids the failure and security risk caused by the disorder of the cable.

[0003] However, due to the long stroke of the tow chain cable, combined with the fact that the cable is heavy, in the absence of external support, the middle unit link of the tow chain cable is prone to sag, and after sagging, it is in contact with the cross beam or base of the machine tool, which is easy to wear during long-time sliding. Long-term use or operation of the seriously worn unit link is easy to cause the whole tow chain to collapse, which seriously affects the service life of the tow chain. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a rotary tow chain support frame to solve the problem of the middle part of the tow chain cable lacking support and sagging in the background art, which causes the tow chain to wear during long-time sliding and shortens the service life of the tow chain.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rotary tow chain support frame, comprising a cylinder, the cylinder is arranged below the side of the tow chain, the cylinder is fixedly connected with the machine tool, a gland is fixedly arranged at the top of the cylinder, a plunger rod is tightly fitted in the cylinder, a sealing ring is arranged between the plunger rod and the cylinder, an air inlet hole is formed in one side of the bottom of the cylinder, an air outlet hole is formed in one side of the top of the cylinder, a support rod is fixedly arranged at the end of the plunger rod away from the air inlet hole, a tow chain roller is rotatably connected to the outside of the support rod, and a rotating assembly for rotating the plunger rod is further arranged between the cylinder and the plunger rod.

[0006] Preferably, the rotating assembly comprises a rotating lug arranged on the inner wall of the cylinder, and a rotating groove adapted to the rotating lug is formed in the side wall of the plunger rod in a spiral shape.

[0007] Preferably, the two ends of the rotating groove are between the base of the plunger rod and the gland.

[0008] Preferably, the support rod is connected with the end of the plunger rod through a spline, and the top of the plunger rod is provided with a fastening bolt.

[0009] Preferably, the drag chain carrier roller is rotationally connected with the support rod through a rolling bearing

[0010] Compared with the prior art, the utility model has the beneficial effects that: through setting up the support rod and the drag chain carrier roller, the drag chain is supported, and through the cylinder, the internal plunger rod and the rotating assembly, the gas enters from the air inlet hole, so that the plunger rod can rotate during the lifting process, the support rod can be moved to the bottom of the drag chain and be perpendicular to the drag chain, the lifting and lowering of the plunger rod can switch the support rod and the drag chain carrier roller between the two modes of being parallel to the drag chain and being perpendicular to the drag chain, so that the drag chain can be supported and the device does not occupy too much space and does not affect other equipment and the drag chain.

[0011] Through setting up the cylinder, the plunger rod and the rotating assembly, the plunger rod is lifted or lowered by conveying the gas into the cylinder, the plunger rod is rotated through the rotating groove of the rotating assembly, the support rod fixedly connected with the plunger rod drives the drag chain carrier roller to rotate, the drag chain carrier roller is moved to the bottom of the drag chain to support the drag chain, the drag chain carrier roller is rotationally connected with the support rod, the drag chain is supported on the drag chain carrier roller, the contact between the drag chain and the machine tool beam is avoided, the wear is avoided, and the service life of the drag chain is prolonged.

[0012] Through setting up the rotating assembly, the plunger rod can rotate during the lifting and lowering, the drag chain carrier roller can be switched between being parallel to the machine tool beam and being perpendicular to the beam, the drag chain carrier roller is rotated to the lower part of the drag chain and is perpendicular to the drag chain when the drag chain needs to be supported, the drag chain carrier roller is rotated to be parallel to the drag chain when the drag chain is recovered, the device can be applied to the narrow space of the machine tool, does not affect other equipment and the drag chain, can avoid the drag chain walking back and forth, and the reliability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an internal planar structure schematic view of the utility model.

[0014] In the figure: 1, cylinder; 2, drag chain; 3, gland; 4, plunger rod; 5, sealing ring; 6, air inlet hole; 7, air outlet hole; 8, support rod; 9, drag chain carrier roller; 10, rotating assembly; 101, rotating lug; 102, rotating groove 11, fastening bolt. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0016] Please refer to Figure 1 The utility model provides an embodiment: a rotary drag chain support frame, including cylinder 1, cylinder 1 sets up in the side below drag chain 2, cylinder 1 is fixedly connected with machine tool, the top of cylinder 1 is fixedly provided with gland 3, the inside close fitting of cylinder 1 is provided with plunger rod 4, and the sealing ring 5 is arranged between the plunger rod 4 and the cylinder 1, the bottom one side of cylinder 1 is provided with inlet hole 6, and the top one side of cylinder 1 is provided with outlet hole 7, and the inlet hole 6 and outlet hole 7 are arranged on the upper portion and lower portion of the plunger rod 4 base respectively, through the external gas path equipment, when the plunger rod 4 needs to rise, the plunger rod 4 is pushed up to rise from the inlet hole 6, at this time, the outlet hole 7 plays the role of exhaust, when it needs to descend, the gas enters from the outlet hole 7, and the plunger rod 4 is pushed down to return to the original position;

[0017] The end, away from the inlet hole 6, of the plunger rod 4 is fixedly provided with a support rod 8, wherein the support rod 8 and the end of the plunger rod 4 are connected through a spline, and the top of the plunger rod 4 is provided with a fastening bolt 11 to fix the support rod 8 and the plunger rod 4.

[0018] The support rod 8 is rotatably connected with a drag chain carrier roller 9 outside, and the drag chain carrier roller 9 and the support rod 8 are rotatably connected through a rolling bearing, the drag chain passes through the drag chain carrier roller 9, the drag chain carrier roller 9 is arranged to rotate, which reduces the abrasion between the drag chain and the drag chain carrier roller 9 and provides support for the drag chain.

[0019] Further, in order to not occupy the space above the machine tool beam when not in use, avoid the mutual interference of the drag chains walking back and forth, make the device applicable to the space small position, avoid the mutual interference of the drag chains walking back and forth, the rotating assembly 10 for rotating the plunger rod 4 is further arranged between the cylinder 1 and the plunger rod 4, and the rotating assembly 10 comprises a rotating lug 101 arranged on the inner wall of the cylinder 1, and a rotating groove 102 in a spiral shape is arranged on the side wall of the plunger rod 4 and matched with the rotating lug 101, and the two ends of the rotating groove 102 are between the base of the plunger rod 4 and the gland 3. In the process of the plunger rod 4 rising, the plunger rod 4 is rotated through the guidance of the rotating lug 101 and the rotating groove 102, and then the support rod 8 is rotated, so that the support rod 8 is switched between the parallel state to the machine tool beam and the state perpendicular to the machine tool beam.

[0020] Further, the device can be along the machine tool beam, and 4-5 groups are arranged according to the length of the drag chain, so as to support the long drag chain

[0021] Working principle: when the device is used, when the drag chain reaches the device, the gas is sent to the air inlet hole 6 through the external air path equipment, the plunger rod 4 is pushed upward, the rotating block 101 and the rotating groove 102 are rotated, the plunger rod 4 is rotated according to the track of the rotating groove 102, the supporting rod 8 is rotated from the direction parallel to the machine tool beam to the direction perpendicular to the machine tool beam, and the drag chain is supported.

[0022] When the device is not needed, the gas enters from the air outlet hole 7, the plunger rod 4 is lowered and rotated, the whole supporting rod 8 and the drag chain roller 9 return to the side of the machine tool beam, and the influence on other equipment or other drag chains is avoided.

[0023] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A rotary tow chain support frame, characterized by: Including cylinder (1), cylinder (1) is arranged below the side of drag chain (2), cylinder (1) is fixedly connected with machine tool, the top of cylinder (1) is fixedly provided with gland (3), the inside of cylinder (1) is closely provided with plunger rod (4), sealing ring (5) is arranged between plunger rod (4) and cylinder (1), the bottom of cylinder (1) one side is provided with air inlet hole (6), the top of cylinder (1) one side is provided with air outlet hole (7), the end of plunger rod (4) away from air inlet hole (6) is fixedly provided with support rod (8), drag chain carrier roller (9) is rotatably connected on the outside of support rod (8), cylinder (1) and plunger rod (4) are further provided with rotating assembly (10) for rotating plunger rod (4).

2. A rotary towed chain support frame according to claim 1, characterized in that: The rotating assembly (10) comprises a rotating lug (101) arranged on the inner wall of the cylinder (1), and a rotating groove (102) adapted to the rotating lug (101) is spirally formed on the side wall of the plunger rod (4).

3. A rotary towed chain support frame according to claim 2, characterised in that: The two ends of the rotating groove (102) are between the base of the plunger rod (4) and the gland (3).

4. A rotary towed chain support frame according to claim 1, characterized in that: The end of the support rod (8) and the plunger rod (4) are connected by spline, and the top of the plunger rod (4) is provided with a fastening bolt (11).

5. A rotary towed chain support frame according to claim 1, characterized in that: The drag chain carrier roller (9) and the support rod (8) are rotatably connected by a rolling bearing.

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