WO2020065782A1

WO2020065782A1 - Chute

Info

Publication number: WO2020065782A1
Application number: PCT/JP2018/035761
Authority: WO
Inventors: 大祐福岡; 周一平田; 良彦澤端; 創小寺
Original assignee: 株式会社Ｆｕｊｉ
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2020-04-02
Also published as: JP7015937B2; JPWO2020065782A1

Abstract

A chute (1) is provided with: a chute body (2); a plurality of guide members (3) which are arranged on the chute body (2), extend in a direction including a direction in which a workpiece (W) slides, and come into contact with the workpiece (W); and adjustment members (4f, 4r) capable of adjusting the positions of the guide members (3) relative to the chute body (2).

Description

shoot

The present disclosure relates to a chute used for discharging a work from a machine tool, for example.

ワーク For example, during inspection, the work is discharged from the machine tool via the chute. However, when the work is lightweight or the coolant is attached to the chute, the work is unlikely to slide on the chute. In this regard, the shoot of Patent Document 1 has two shoot rails. The two chute rails extend in the sliding direction of the work. The work slides on the upper surfaces of the two chute rails by its own weight.

JP-A-49-89269

シュート In the case of the shoot of the same document, two shoot rails are fixed to the shoot. Therefore, the position of the chute rail cannot be changed. Therefore, an object of the present disclosure is to provide a chute that can adjust the position of the guide member.

In order to solve the above problems, a chute according to the present disclosure includes a chute main body, a plurality of guide members disposed on the chute main body, extending in a direction including a work sliding direction, and abutting on the work, and a chute main body. And an adjusting member capable of adjusting the position of the guide member with respect to the guide member. Here, the “direction including the sliding direction of the work”, which is the direction in which the guide member extends, is defined as a “direction parallel to the sliding direction” or a direction intersecting the sliding direction in a direction other than orthogonal. Is included.

シュート The chute according to the present disclosure includes an adjusting member. For this reason, the position of the guide member with respect to the chute main body can be adjusted.

FIG. 1 is a perspective view of a chute. FIG. 2 is an exploded perspective view of the chute. FIG. 3 is a sectional view taken along the line III-III of FIG. FIG. 4 is a cross-sectional view in the left-right direction near the adjustment member on the rear side of the chute when a wide workpiece is conveyed. FIG. 5 is a left-right cross-sectional view of the vicinity of the adjustment member on the rear side of the chute when a narrow work is conveyed. FIG. 6 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to another embodiment (part 1). FIG. 7 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to another embodiment (part 2). FIG. 8 is a cross-sectional view in the left-right direction near the adjustment member on the rear side of the chute according to another embodiment (part 3).

Hereinafter, embodiments of the chute according to the present disclosure will be described. In the following drawings, the front-rear direction (the direction in which the workpiece is conveyed, which is descending from the rear side (upstream side) to the front side (downstream side)) corresponds to the “sliding direction” of the present disclosure. The left-right direction corresponds to the “width direction” of the present disclosure.

(Structure of chute)
First, the configuration of the chute of the present embodiment will be described. FIG. 1 shows a perspective view of the chute of the present embodiment. FIG. 2 shows an exploded perspective view of the chute. FIG. 3 is a sectional view taken along the line III-III of FIG.

シュート As shown in FIGS. 1 to 3, the chute 1 includes a chute main body 2, two guide members 3, and a pair of front and rear adjustment members 4f and 4r. The chute main body 2 includes a bottom wall 20, a pair of left and right side guides 21L and 21R, and a stopper 22. The upper surface of the bottom wall 20 is a sliding surface 200. The sliding surface 200 extends in the front-rear direction. The sliding surface 200 has a planar shape that descends from the rear side to the front side. The pair of left and right side guides 21 </ b> L and 21 </ b> R protrude upward from both left and right edges of the bottom wall 20. The side guides 21 </ b> L and 21 </ b> R have a function of preventing a later-described work W from deviating laterally outward from the sliding surface 200. The stopper 22 protrudes upward from the front edge (downstream end) of the bottom wall 20. The stopper 22 has a function of stopping the sliding work W at a predetermined work removal position.

The pair of front and rear adjustment members 4f and 4r are detachably attached to a rear end (upstream end) and a front end (downstream end) of the sliding surface 200 via a not-shown locking member (bolt, screw, clip, or the like). ing. The configurations of the adjusting members 4f and 4r are the same. Six attachment holes 40 are opened in the adjustment member 4r. The mounting hole 40 is included in the concept of the “mounting portion” of the present disclosure. The mounting hole 40 penetrates the adjusting member 4r in the front-rear direction. The six mounting holes 40 are juxtaposed in the left-right direction.

The guide member 3 extends in the front-rear direction along the sliding surface 200. The guide member 3 has a round bar shape. The cross section (lateral cross section, radial cross section) of the guide member 3 has a perfect circular shape. That is, the upper edge of the cross-sectional shape in the left-right direction of the guide member 3 has a curved shape bulging upward. The two guide members 3 are juxtaposed in the left-right direction at a predetermined interval. The two guide members 3 are detachably attached to a pair of front and rear adjustment members 4f, 4r. Specifically, the rear end of the left guide member 3 is inserted into the second mounting hole 40 from the left of the rear adjustment member 4r. The front end of the left guide member 3 is inserted into the second mounting hole 40 from the left of the front adjustment member 4f. The rear end of the right guide member 3 is inserted into the second mounting hole 40 from the right of the rear adjustment member 4r. The front end of the right guide member 3 is inserted into the second mounting hole 40 from the right of the front adjustment member 4f.

(Work movement)
Next, the movement of the work in the chute according to the present embodiment will be described. As shown by an arrow Y in FIG. 1, the work W is loaded from the machine tool (not shown) to the rear end of the chute 1 by the chuck 9 of the loader. The input work W is placed on the two guide members 3. At this time, the lower surface of the work W contacts the upper surfaces of the two guide members 3 in a line (a line extending in the front-rear direction). The work W slides on the upper surfaces of the two guide members 3 from the rear side to the front side by its own weight.

(Effects)
Next, the operation and effect of the chute of the present embodiment will be described. As shown in FIG. 3, the upper edge of the cross section in the left-right direction of the guide member 3 has a curved shape bulging upward. On the other hand, the lower surface of the work W has a planar shape. Therefore, the lower surface of the work W can be brought into line contact with the upper surfaces of the two guide members 3. Therefore, the contact area can be reduced as compared with the case where the lower surface of the work W is in full surface contact with the sliding surface 200. Therefore, the slidability of the work W can be improved.

Further, according to the chute 1 of the present embodiment, the existing chute main body 2 (in the case of the existing chute main body 2, the work W slides on the sliding surface 200), the position adjusting device (the plurality of guide members 3 and at least one Only by additionally arranging the two adjusting members 4f, 4r), the sliding property of the work W can be improved easily and at low cost.

FIG. 4 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to the present embodiment when a wide workpiece is conveyed. As shown in FIG. 4, when a work W having a large width in the left-right direction is conveyed, the rear ends of the two guide members 3 are two of the six mounting holes 40 of the rear adjustment member 4r. It is inserted into the mounting hole 40. In addition, the front ends of the two guide members 3 are inserted into two mounting holes 40 on both left and right ends of the six mounting holes 40 of the front adjustment member 4f (see FIG. 2).

FIG. 5 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute when conveying a narrow work. As shown in FIG. 5, when conveying a work W having a narrow width in the left-right direction, the rear ends of the six guide members 3 are inserted into the six mounting holes 40 of the rear adjustment member 4r. In addition, the front ends of the six guide members 3 are inserted into the six mounting holes 40 of the front adjustment member 4f (see FIG. 2).

As shown in FIGS. 3 to 5, according to the chute 1 of the present embodiment, the shape, size, weight, position of the center of gravity, mechanical properties (tensile strength, yield point, elongation, hardness, impact resistance) of the work W The position of the guide member 3 in the left-right direction with respect to the chute main body 2 and the number of arrangements are adjusted according to various properties related to mechanical deformation and fracture, such as fatigue strength and creep strength, etc. can do. For this reason, the slidability of the work W can be reliably improved irrespective of the shape and the like of the work W.

シュート As shown in FIGS. 3 to 5, according to the chute 1 of the present embodiment, six mounting holes 40 are arranged in the adjusting member 4r. For this reason, the position of the rear end of the guide member 3 in the left-right direction can be adjusted stepwise. Similarly, for the adjustment member 4f (see FIG. 2), the position of the front end of the guide member 3 in the left-right direction can be adjusted stepwise. Therefore, the degree of freedom in setting the position of the guide member 3 can be increased.

As shown in FIGS. 3 to 5, the width A of the work W in the left-right direction (outer diameter in the case of a circular work W) exceeds the width B of the gap between the pair of guide members 3 adjacent in the left-right direction. (A> B). For this reason, the work W does not easily fall off from the upper surface of the guide member 3.

隙間 As shown in FIGS. 3 to 5, a gap C is provided between the sliding surface 200 and the lower surface of the guide member 3. In other words, the guide member 3 is floating from the slide surface 200. Therefore, the impact when the work W is thrown into the chute 1 from the chuck 9 shown in FIG. 1 can be reduced by the elastic deformation (bending) of the guide member 3.

調整 As shown in FIG. 2, the pair of adjustment members 4f, 4r are arranged apart from each other in the front-rear direction. Therefore, the positions of the front end and the rear end of the guide member 3 can be independently adjusted. For example, the two guide members 3 can be arranged in a “tapered shape that is pointed from the rear side to the front side” or a “tapered shape that is pointed from the front side to the rear side” when viewed from above. In addition, by adjusting the mounting position of the adjusting members 4f, 4r in the front-rear direction with respect to the sliding surface 200, the interval between the pair of adjusting members 4f, 4r can be adjusted.

(Other)
The embodiment of the chute of the present disclosure has been described above. However, embodiments are not particularly limited to the above embodiments. Various modifications and improvements that can be performed by those skilled in the art are also possible.

FIG. 6 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to another embodiment (part 1). Parts corresponding to those in FIG. 3 are denoted by the same reference numerals. As shown in FIG. 6, the work W includes a base Wa and a protrusion Wb. The base Wa has a columnar shape. The protrusion Wb has a columnar shape with a smaller diameter than the base Wa. The convex portion Wb is connected to a lower side of the base Wa. The width of the protrusion Wb is smaller than that of the base Wa. The two guide members 3 support the lower surface of the base Wa from below. In addition, the two guide members 3 support the outer peripheral surface (both sides in the left-right direction) of the protrusion Wb from the outside in the left-right direction. Like the chute 1 of the present embodiment, the guide member 3 may have the function of the side guides 21L and 21R (the function of suppressing the work W from deviating from the chute main body 2 to the outside in the left-right direction). Further, the guide member 3 may have a function of guiding the sliding trajectory of the work W. In addition, the chute main body 2 does not have to include the bottom wall 20 (sliding surface 200) shown in FIG.

FIG. 7 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to another embodiment (part 2). Parts corresponding to those in FIG. 3 are denoted by the same reference numerals. As shown in FIG. 7, the rear adjustment member 4r includes a pair of upper and lower sandwiching pieces 41U and 41D, and a pair of left and right restraining members 42. The upper and lower pair of holding pieces 41U and 41D hold and fix the three guide members 3 from above and below. The pair of left and right restraining members 42 urge the pair of upper and lower sandwiching pieces 41U, 41D in directions approaching each other. The lower surface (the contact surface with the three guide members 3) of the upper holding piece 41U has a planar shape. Similarly, the upper surface (the contact surface with the three guide members 3) of the lower holding piece 41D has a planar shape. The pair of upper and lower holding pieces 41U and 41D sandwich the three guide members 3 from above and below by the restraining force applied from the pair of left and right restraining members 42. A gap D is defined between the lower surface of the holding piece 41U and the upper surface of the holding piece 41D over substantially the entire width of the sliding surface 200 in the left-right direction. The width of the gap D in the left-right direction is larger than the total width of the three guide members 3 in the left-right direction. According to the chute 1 of the present embodiment, the position in the left-right direction of the three guide members 3 in the gap D can be adjusted fluidly (in the case of FIG. 3, stepwise (six steps)). Further, the guide member 3 may have a prismatic shape. The number of the guide members 3 may be three.

FIG. 8 is a cross-sectional view in the left-right direction of the vicinity of the adjustment member on the rear side of the chute according to another embodiment (part 3). Parts corresponding to those in FIG. 3 are denoted by the same reference numerals. As shown in FIG. 8, the rear adjustment member 4r includes six mounting recesses 43. The mounting recess 43 opens downward. The mounting recess 43 is included in the concept of the “mounting portion” of the present disclosure. According to the chute 1 of the present embodiment, the guide member 3 can be attached to and detached from the adjustment member 4r not only in the front-back direction but also in the up-down direction. Therefore, the guide member 3 can be easily attached to and detached from the adjustment member 4r. Note that the mounting recess 43 may be opened upward.

左右 The cross-sectional shape of the guide member 3 in the left-right direction is not particularly limited. The shape may be a perfect circle, an ellipse, a semicircle, a polygon, an O-shape, a C-shape, or a V-shape. The cross-sectional shape and the cross-sectional area in the left-right direction of the guide member 3 may not be constant over the entire length of the guide member 3. With respect to the plurality of guide members 3, a plurality of guide members 3 having different cross-sectional shapes in the left-right direction and different cross-sectional areas may be appropriately used in accordance with the shape of the work W or the like. The longitudinally extending shape of the guide member 3 is not particularly limited. It may be linear or curved. The position, the number of the guide members 3 and the like are not particularly limited. When a plurality of guide members 3 are arranged, the width B in the left-right direction shown in FIG. 3 is not particularly limited. The width B in the left-right direction may be the same or different over the entire length in the front-rear direction. The intermediate portion of the guide member 3 may have a larger diameter than the front and rear ends of the guide member 3 (portions inserted into the mounting holes 40). The sliding speed of the work W may be adjusted by adjusting the frictional force of the guide member 3 on the work W. For example, the sliding speed of the work W may be adjusted by adjusting the material of the guide member 3 and the contact area of the upper surface of the guide member 3 (the slide surface of the work W) with the work W. The sliding speed of the work W may be adjusted by adjusting the inclination angle of the upper surface of the guide member 3 (the inclination angle with respect to the horizontal plane).

数 The number of guide members 3 and the width B in the left-right direction may be adjusted according to the weight of the work W, the transportability, and the like. For example, the heavier the work W, the greater the number of guide members 3 may be arranged. Further, the width B in the left-right direction may be reduced. In addition, the number of the guide members 3 may be increased for a work W requiring more careful handling (for example, a work that is easily deformed or a work that is easily scratched) W. Further, the width B in the left-right direction may be reduced.

取付 The mounting positions and the number of the adjusting members 4f, 4r with respect to the running surface 200 are not particularly limited. The mounting positions and the number of arrangements are such that one adjusting member 4f, 4r is provided at the center of the sliding surface 200 in the front-rear direction, two at the front and rear ends of the sliding surface 200, three at the front and rear ends of the sliding surface 200 and the center in the front-rear direction, or There may be four or more. The method of attaching the adjusting members 4f and 4r to the sliding surface 200 is not particularly limited. The adjusting members 4f and 4r may be detachably attached to the sliding surface 200 by using locking members (bolts, screws, clips, and the like). Further, the adjusting members 4f, 4r may be fixed to the sliding surface 200 by welding, bonding, fitting, or the like. The juxtaposition direction (the “width direction” of the present disclosure) of the plurality of attachment portions (the attachment holes 40 and the attachment recesses 43) is not particularly limited. It may be a left-right direction (a direction orthogonal to the front-rear direction) or a direction intersecting the front-rear direction and the left-right direction. The number of mounting portions is not particularly limited. It may be single or plural.

If the position of the guide member 3 can be adjusted with respect to the adjustment members 4f and 4r, the adjustment members 4f and 4r may be fixed to the chute main body 2. The guide member 3 may be fixed to the adjusting members 4f and 4r as long as the position of the adjusting members 4f and 4r can be adjusted with respect to the chute main body 2. That is, it is only necessary that the position of the guide member 3 be adjustable relative to the chute body 2. The shape and the like of the work W are not particularly limited. The shape may be a column, a cylinder, a prism, a prism, or the like. The type of the work W is not particularly limited. What is necessary is just the conveyance object of the chute 1. For example, it may be an unprocessed product, a processed intermediate product, a processed product, an inspection target product, a waste product, or the like.

1: chute, 2: chute body, 3: guide member, 4f: adjustment member, 4r: adjustment member, 9: chuck, 20: bottom wall, 21L: side guide, 21R: side guide, 22: stopper, 40: mounting Hole (mounting portion), 41D: holding piece, 41U: holding piece, 42: restraining member, 43: mounting recess (mounting portion), 200: sliding surface, B: width in the left-right direction, C: gap, D: gap, W : Work, Wa: base, Wb: convex

Claims

The chute body,
A plurality of guide members arranged on the chute body, extending in a direction including the sliding direction of the work, and abutting on the work,
An adjusting member capable of adjusting the position of the guide member with respect to the chute body,
A chute equipped with.
The adjusting member is arranged in a plurality,
The guide member is detachably attached to the adjustment member,
The chute according to claim 1, wherein the plurality of adjustment members are arranged apart from each other in the sliding direction.
The width direction is defined as the direction intersecting the sliding direction,
The adjustment member has a plurality of mounting portions juxtaposed in the width direction,
The chute according to claim 1, wherein the guide member is detachably attached to the attachment portion.
The adjustment member has a pair of holding pieces,
The chute according to claim 1, wherein the pair of holding pieces position the guide member by sandwiching the guide member from above and below.
The width direction is defined as the direction intersecting the sliding direction,
The chute according to any one of claims 1 to 4, wherein an upper edge of the cross section in the width direction of the guide member has a curved shape bulging upward.