JP2008105120A - Feed rod vibration isolating support for material feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feed rod vibration isolating support for a material feeder, which is improved in vibration isolating effect of a feed rod. <P>SOLUTION: The feed rod vibration isolating support is composed of a guide device (50, 50A) which guides the feed rod (21) for moving so as to feed a material (B1) to a machining device (2), and a vibration damping mechanism (70) which prevents vibration of the feed rod (21). The guide device (50, 50A) is formed of guides (56, 58), and bushes (59) supported by the guides (56, 58), for arranging the feed rod (21) therein. The vibration damping mechanism (70) is formed of a first elastic body (73, 73A) arranged between the bush (59) and the guide (56), and each bush (59) is formed of flanges (59a, 59b) mounted on the guides (56, 58). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a feed rod vibration isolating support in a material feeder.

  A related bar feeder includes a structure in which a feed rod passes through a U-groove guide pipe or a cylindrical pipe, or an oil feeder that supplies oil to these guide pipes (see Patent Documents 1 to 5 below). ).

  On the other hand, another automatic bar feeder includes an oil feeder in which bushes are arranged at predetermined intervals by screwing in a U-groove guide pipe. The oil feeder includes a bush and a screw for fixing the bush to the guide pipe (see Patent Documents 6 and 7 below).

JP-A-11-320207 Japanese Utility Model Publication No. 63-179002 Japanese Utility Model Publication No. 1-66901 Japanese Unexamined Patent Publication No. 63-278704 Japanese Patent Laid-Open No. 11-42502 JP 2000-141102 A JP 2000-233301 A

  However, the former guide pipe has a continuous long structure made of metal, resin, or a composite of metal and resin. In this structure, even if oil is supplied to the guide pipe in which the feed rod is inserted, there is only a slight gap between the feed rod and the guide pipe inner diameter. For this reason, it is difficult for oil to reach the feed pipe guide, and the anti-vibration effect is reduced. In addition, when the parts were worn, it was necessary to replace the whole because of the continuum.

  In the latter case, when the oil is supplied from the oil supply port, the oil is not supplied to the space of the next oil reservoir unless it exceeds the wall of the bush. Further, when the feed rod is arranged on the bush, the space is closed by the feed rod, so that there is only a slight gap between the feed rod and the inner diameter of the bush. For this reason, the oil reaches the adjacent oil reservoir space through this slight gap, so that the oil is difficult to reach and the vibration isolation effect by the oil is reduced.

  Accordingly, an object of the present invention is to provide a feed rod vibration isolating support in a material supply machine that improves the vibration isolating effect of the feed rod.

  Hereinafter, the features of the present invention will be described with reference to the reference numerals. The features of the present invention are not limited to the embodiments by the reference numerals.

  The first feature of the invention is a feed rod vibration isolating support in a material supply machine including the following elements. The support includes a guide device (50, 50A) capable of guiding a feed rod (21) that moves so as to supply the material (B1) to the processing machine (2). The support includes a vibration damping mechanism (70) that prevents vibration of the feed rod (21). The guide device (50, 50A) includes a guide (56, 58) and a bush (59) for supporting the guide (56, 58) and arranging the feed rod (21). The vibration damping mechanism (70) includes a first elastic body (73, 73A) disposed between the bush (59) and the guide (56). The bush (59) includes flanges (59a, 59b) attached to the guides (56, 58).

  In the above features, the support includes a base (41) that supports the guide device (50), and the vibration damping mechanism is a second elastic body disposed between the base (41) and the guide device (50). (71) may be included.

  The second feature of the present invention is a feed rod vibration isolating support in a material feeder having the following elements. The support includes a guide device (50, 50A) capable of guiding a feed rod (21) that moves so as to supply the material (B1) to the processing machine (2). The support includes a feed rod (21) and a fluid supply system (80, 80A) for fluid to flow through the guide device (50, 50A). The guide device (50, 50A) includes a guide (56, 56A), a bush (59) for arranging the feed rod (21) supported by the guide (56, 56A), a bush (59), and a guide. (56, 56A) and an elastic body (73, 73A) disposed between them. The fluid supply system (80, 80A) includes first and second fluid reservoirs (82) disposed via a guide device (50, 50A), a guide (56, 56A), and an elastic body (73). And a fluid path (84, 84A) disposed between and extending between the first and second fluid reservoirs (82).

  According to the characteristics of the invention, the vibration damping mechanism absorbs the vibration of the feed rod, thus preventing the vibration of the feed rod.

  Since the fluid path allows fluid to flow between the first and second fluid reservoirs, the fluid is evenly distributed in the first and second fluid reservoirs, improving the vibration isolation effect of the feed rod.

  The best mode for carrying out the invention will be described below with reference to the drawings.

<First embodiment>
Referring to FIG. 1, a bar feeder 1 as a material feeder is arranged next to a lathe 2 as a processing apparatus. The bar feeder 1 includes a main body 3b supported by a base 3a, an upper lid 3c combined with the main body 3b, a control box 4 disposed under the main body 3b, and an operation panel 6 at the front of the main body 3b. Including. Referring to FIG. 2, lathe 2 includes a cylindrical main shaft 7 through which bar B1 can pass. The lathe 2 includes a chuck 8 that holds the bar B1 at one end of the main shaft 7. The chuck 8 moves linearly with the main shaft 7 and can rotate about the axis A1. The lathe 2 has a blade for processing the tip of the bar B1. The main shaft 2a may be a fixed type that does not move linearly.

  Referring to FIG. 2, bar feeder 1 includes a material shelf 10 for stocking bar B1. The feeder 1 includes a conveying device 30 and a support device 20 that receive the bar B1 from the material shelf 10 and convey it to the lathe 2. The material shelf 10, the conveyance device 30 and the support device 20 are controlled by the control box 4.

  Referring to FIG. 3, the material shelf 10 includes an inclined shelf 11 having a recess 11a in which bars are arranged in parallel. The material shelf 10 includes an L-shaped take-out lever 12 that is rotatable about a rotation shaft 13 so as to lift the bar B1 from below. The material shelf 10 includes a cylinder 14 that drives a take-out lever 12. This cylinder 14 is swingably supported by the main body 3b. Then, the cylinder 14 is operated to rotate the take-out lever 12 in the clockwise direction, and the leading bar B1 is lifted by the tip 12a of the lever 12 and taken out from the recess 11a. The bar B1 moves toward the support device 20 along the slope 11b of the shelf 11.

  2 and 4, the conveying device 30 includes a feed rod 21 centered on the axis A <b> 1 of the main shaft 7. The feed rod 21 includes a finger chuck 21a that can grip the rear end of the bar B1, a bearing 21b that rotatably supports the finger chuck 21a, and a push bar 21c that fixes the bearing 21b. The conveying device 30 includes a steadying device 22 at a tip that faces the lathe 2. The steadying device 22 prevents vibration from being transmitted from the rotating rod B1 to the feed rod 21 by stopping the deflection of the rotating rod B1.

  Referring to FIGS. 2 and 3, conveyance device 30 includes a delivery motor 36 that drives feed rod 21. The conveyance device 30 includes a slider 31 fixed to the front and rear portions of the feed rod 21. The transport device 30 includes a slider guide 32 that is disposed along the axis A <b> 1 and is fixed to the shelf 11 and engaged with the slider 31. The transport device 30 includes a drive sprocket 33 and a tip sprocket 34 on which a drive chain connected to one of the slides 31 is hung. Then, the delivery motor 36 is operated to rotate the drive sprocket 33. The rotating drive sprocket 33 travels the drive chain via the tip sprocket 34, and moves the feed rod 21 connected to the slider 31 forward or backward together with the slider 31 using the connecting member 31a.

  Referring to FIG. 3, the support device 20 includes a support mechanism 40 that supports the feed rod 21 and a guide device 50 that guides the feed rod 21.

  The support mechanism 40 includes a mounting stay 41 as a base disposed at a predetermined interval along the axis A1.

  The guide device 50 includes a lower support stay 51 that is supported by the mounting stay 41 with an anti-vibration rubber 71 interposed therebetween. The guide device 50 includes an upper support arm 53 that is rotatably connected to the lower support stay 51 using a fulcrum shaft 52. The guide device 50 includes a cylinder 54 that drives the upper support arm 53 (see FIG. 4).

  The guide device 50 includes a U-shaped lower support guide 56 connected to the lower support stay 51 using a lower connection rail 55. The guide device 50 includes an upper support guide 58 connected to the upper support arm 53 using the upper connection rail 57. The guide device 50 includes a support case 59 as a bush positioned inside the lower support guide 56. The guide device 50 includes a U-shaped anti-vibration rubber 73 disposed between the lower support guide 56 and the support case 59. The guide device 50 includes a vibration isolation pad 72 fixed to the upper support guide 58.

  With reference to FIG. 5B, the circumferential end 58 a of the upper support guide 58 faces the circumferential end 56 a of the lower support guide 56. The other end 58b in the circumferential direction of the upper support guide 58 faces the other end 56b in the circumferential direction of the lower support guide 56 with a gap therebetween. A connecting member 31 a is inserted into the gap to connect the feed rod 21 and the slider 31.

  The thin metal support case 59 is curved in accordance with the inner peripheral surface of the anti-vibration rubber 73, and the outer peripheral surface of the anti-vibration rubber 73 is curved in accordance with the inner peripheral surface of the lower support guide 56. The support case 59 has a U-shaped groove on the inner side, and the feed rod 21 is disposed in this groove. Both ends in the circumferential direction of the support case 59 extend upward from the center line C1 and are bent outward to form flanges 59a and 59b (see FIG. 6B). Here, the center line C <b> 1 means a line passing through the center of the curvature circle with respect to the inner surface of the support case 59. The flanges 59a and 59b are fastened to both ends of the lower support guide 56 together with the presser fittings 62A and 62B using screws 61. The support case 59 and the vibration isolating rubber 73 are arranged at a predetermined interval along the axis A1. The support case 59 and the vibration isolating rubber 73 may be exchanged according to the size of the feed rod 21. The support case 59 and the anti-vibration rubber 73 can be independently replaced to cope with partial wear.

  Referring to FIG. 3, support device 20 includes a vibration damping mechanism 70 that prevents vibration of feed rod 21. The vibration damping mechanism 70 includes a vibration isolating rubber 71 disposed between the mounting stay 41 and the lower support stay 51. The vibration damping mechanism 70 includes an anti-vibration pad 72 made of urethane rubber, which is arranged at a predetermined interval along the axis A1 and is arranged with a gap from the top of the feed rod 21 (see FIG. 4). The anti-vibration pad 72 is fixed inside the upper support guide 58 with screws (see FIG. 5B). The anti-vibration pad 72 defines a space that matches the size of the feed rod 21 together with the inner surface of the support case 59 and prevents the feed rod 21 from moving upward. The anti-vibration pad 72 may have a semicircular cross section that matches the diameter of the feed rod 21 in addition to a rectangular cross section. The vibration damping mechanism 70 includes a U-shaped vibration isolating rubber 73 as an elastic body disposed between the support case 59 and the lower support guide 56. The anti-vibration rubber 73 can be replaced independently to accommodate partial wear.

  Referring to FIG. 5, support device 20 includes an oil supply system 80 as a fluid supply system that supplies oil as a fluid to guide device 50. The fluid supply system 80 includes an oil pump 81 that delivers oil (see FIG. 2). The fluid supply system 80 has an oil reservoir space 82 as a fluid reservoir between the guide devices 50. The fluid supply system 80 is connected to an oil pump 81 using a pipe, and has an oil supply port 83 that supplies oil to the oil reservoir space 82. The system 80 is formed by cutting out the bottom portion of the lower support guide 56 and has an oil path 84 as a fluid path that connects the oil sump spaces 82 to each other. Since the oil path 84 allows oil to flow between the oil reservoir spaces 82, the oil path 84 is evenly distributed in the oil reservoir spaces 82 and achieves the vibration isolation effect of the feed rod 21.

  Next, the operation of the bar feeder 1 will be described.

  Referring to FIG. 3, upper support arm 53 is rotated counterclockwise with respect to lower support stay 51, and upper support guide 58 is separated from lower support guide 56. Thereby, the upper part of the support case 59 is opened.

  Next, the cylinder 14 is operated to rotate the take-out lever 12 clockwise. The leading end 12a of the take-out lever lifts the top bar B1 and takes it out from the recess 11a. The taken bar B1 descends the slope 11b of the shelf 11 and falls into the support case 59.

  The upper support arm 53 is rotated clockwise with respect to the lower support stay 51, and the upper support guide 58 is brought closer to the lower support guide 56. Accordingly, the upper support guide 58 is positioned on the lower support guide 56, and the vibration isolating pad 72 is disposed with the gap between the top portion of the feed rod 21 and the gap.

  The feed motor 36 is operated to move the slider 31 along the slider guide 32 toward the lathe 2. This operation moves the feed rod 21 toward the lathe 2 along the axis A1. Referring to FIG. 4, feed rod 21 is temporarily stopped before bar B1, and the rear end of bar B1 is gripped by finger chuck 21a. Again, the feed rod 21 moves toward the lathe 2 on the axis A1 together with the bar B1, and is inserted into the main shaft 7 of the lathe 2 (see FIG. 2).

  Here, the anti-vibration rubber 71 absorbs the vibration of the guide device 50. The vibration isolation pad 72 and the vibration isolation rubber 73 absorb the vibration of the feed rod 21. Thereby, the vibration of the feed rod 21 is prevented.

  The oil pump 81 supplies oil from an oil supply port 83 to the oil reservoir space 82. The oil lubricates the feed rod 21 and the guide device 50 and circulates between the adjacent oil sump spaces 82 via the oil path 84, so that the oil is evenly distributed in both the oil sump spaces 82. Thereby, the anti-vibration effect of the feed rod 21 is improved.

  The bar B1 passes through the main shaft 7 in the lathe 2 and is fixed by the chuck 8. The bar B1 is processed by the blade of the lathe 2. After the completion of processing, the remaining material of the bar B1 moves backward from the lathe 2 to the bar feeder 1 as the feed rod 21 moves backward.

  According to the bar feeder 1 described above, the anti-vibration rubber 71 of the vibration damping mechanism 70 absorbs the vibration of the guide device 50, and the anti-vibration rubber 73 and the anti-vibration pad 72 absorb the vibration of the feed rod 21. Therefore, vibration of the feed rod 21 is prevented.

  Since the oil path 84 allows the oil to flow between the adjacent oil reservoir spaces 82, the oil is evenly distributed in the oil reservoir spaces 82, and the vibration isolation effect of the feed rod 21 is improved.

<Second Embodiment>
With reference to FIG. 7, the bar feeder 1 concerning 2nd embodiment is demonstrated.

  This bar feeder is characterized by the guide device 50A. The guide device 50A includes a J-shaped lower support guide 56A. The lower support guide 56A includes a bottom wall 56A1, a first side wall 56A2 extending at a right angle from one end of the bottom wall 56A1, and a second side wall 56A3 extending at a right angle from the other end of the bottom wall 56A1. The second side wall 56A3 is longer than the first side wall 56A2. The lower support guide 56 has right angle corners 56A4 and 56A5 formed by the bottom wall 56A1 and the first and second side walls 56A2 and 56A3. The guide device 50A includes an L-shaped upper support guide 58A combined with a lower support guide 56A. The upper support guide 58A has a top wall 58A1 extending in parallel with the bottom wall 56A1, and a side wall 58A2 extending perpendicularly from one end of the top wall 58A1. Side wall 58A2 faces first side wall 56A2 with a gap therebetween. The other end 58A3 of the top wall 58A1 is in contact with the second side wall 56A3 of the lower support guide 56A.

  The guide device 50A includes presser fittings 62C and 62D into which the flanges 59a and 59b of the support case 59 are inserted and fixed to the inner surfaces of the first and second side walls 56A2 and 56A3.

  The guide device 50A includes a vibration isolating rubber 73A disposed between the support case 59 and the lower support guide 56A. The anti-vibration rubber 73A having a rectangular cross section has an oil path 84A as a fluid path formed by cutting out the corners corresponding to the corners 56A4 and 56A5 of the lower support guide 56A. The oil path 84A constitutes a fluid supply system 80A.

  According to the above bar feeder, the same effect as in the first embodiment is achieved.

It is a front view showing the bar feeder and lathe concerning a first embodiment. It is a top view of the internal structure of the bar feeder shown in FIG. 1, and a lathe. It is a side view of the bar feeder shown in FIG. It is a longitudinal cross-sectional view of the support apparatus shown in FIG. (A) is a longitudinal cross-sectional view of a guide apparatus, (B) is a side view of a guide apparatus. (A) is a top view of the lower part of a guide apparatus, (B) is a side view of the lower part of a guide apparatus. It is a side view of the guide apparatus of the bar feeder concerning 2nd embodiment.

Explanation of symbols

A1 Spindle axis B1 Bar 1 Bar feeder 2 Lathe 10 Material shelf 11 Shelf 12 Take out lever 14 Cylinder 20 Support device 21 Feed rod 30 Transport device 40 Support mechanism 50 Guide device 51 Lower support stay 53 Upper support arm 56 Lower support Guide 58 Upper support guide 59 Support case 70 Vibration damping mechanism 71 Anti-vibration rubber 72 Anti-vibration pad 73 Anti-vibration rubber 80 Fluid supply system 84 Oil path

Claims (3)

A guide device capable of guiding a feed rod that moves to supply material to the processing machine;
Including a vibration damping mechanism that prevents vibration of the feed rod,
The guide device
A guide,
A bush supported by the guide and for positioning the feed rod,
The vibration damping mechanism includes a first elastic body disposed between the bush and the guide,
The bush includes a flange attached to the guide,
Anti-vibration support for feed rods in material feeders. Including a base supporting the guide device;
The vibration damping mechanism includes a second elastic body disposed between the base and the guide device,
The feed rod vibration isolating support in the material feeder according to claim 1. A guide device capable of guiding a feed rod that moves to supply material to the processing machine;
A fluid supply system for fluid to flow through the feed rod and guide device,
The guide device
A guide,
A bush for positioning the feed rod together supported by a guide;
An elastic body disposed between the bush and the guide,
The fluid supply system includes first and second fluid reservoirs disposed with a guide device interposed therebetween,
A fluid path disposed between the guide and the elastic body and extending between the first and second fluid reservoirs,
Anti-vibration support for feed rods in material feeders.

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