JP3896434B2 - Bar feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a bar feeder provided with a material shelf .
[0002]
[Prior art]
In a machine that supplies bar material to machine tools such as NC lathes, a plurality of bar materials are stored in a material shelf in an aligned state, and one bar material is placed from the tip of the material shelf (the side closest to the bar material feeder). It is fed to the bar feeder guides one by one.
[0003]
[Problems to be solved by the invention]
In this type of apparatus, the height of the guide is adjusted in accordance with the material diameter in order to hold the main axis and the bar of the NC lathe coaxially. However, since the height of the conventional material shelf is constant and cannot be changed, the step between the material shelf and the guide changes according to the material diameter. Depending on the level of the step, the bar may not be supplied smoothly.
[0004]
Also, in response to changes in the material diameter, etc., it may be necessary to move the stopper provided on the tip side of the material shelf closer to and away from the guide of the bar feeder, but conventionally a bar is placed. The stopper was moved with respect to the shelf board with an air cylinder or the like. However, in such a configuration, there is a possibility that the bar rolls on the shelf board with the movement of the stopper, and the alignment state is lost.
[0005]
An object of the present invention is to provide a bar feeder that can easily and appropriately adjust the relationship between a bar guide and a material shelf.
[0006]
[Means for Solving the Problems]
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments of the present invention. However, the present invention is not limited to the illustrated form.
[0007]
According to the first aspect of the present invention, the material shelf (5) on which the bar (6) is placed and the bar (6) supplied from the material shelf (5) are guided along a predetermined guide path (G). A guide (7), and at least the ends of the guide (7) and the material shelf (5) on the guide (7) side can be adjusted in the height direction of the bar (6). In addition, a link means (48) is provided between the guide (7) and the material shelf (5) for changing the height of one of the guides (7) and the material shelf (5). The above-described problem is solved by the bar feeder.
[0008]
According to this invention, when the height of the guide (7) is adjusted, the height of the end portion on the guide side of the material shelf (5) changes accordingly, and the height relationship between the two is properly maintained.
[0009]
According to a second aspect of the present invention, in the bar feeder of the first aspect, the material shelf (5) includes a support portion (30) supported by a base portion (2) of the bar feeder so as to be swingable. And a material receiving portion (40) rotatably connected to the upper end portion of the support portion (30) and capable of receiving the bar (6), and the linking means is provided on the guide side of the material receiving portion (40). A member (48) for rotatably connecting the end and the guide (7) to each other is provided.
[0010]
According to this invention, the attitude | position of a material shelf (5) can be changed variously by rocking | fluctuation of a support part (30) and a material receiver (40).
[0011]
According to a third aspect of the present invention, in the bar feeder of the second aspect, the material shelf (5) is brought into a retracted posture in which the material receiving portion (40) is substantially vertical by releasing the connection by the connecting member (48). It is possible to switch.
[0012]
According to the present invention, the material shelf (5) is switched to the retracted position and is compactly accommodated in the side portion of the bar feeder (1), so that the convenience of transporting the bar feeder (1) can be achieved. .
[0013]
According to a fourth aspect of the present invention, in the bar feeder according to the first aspect, the material shelf (5) is disposed adjacent to a guide path (G) of the bar (7) by the bar feeder (1). A receiving surface (50) of the bar (6) is provided, and a stopper (51) for restricting the movement of the bar (6) to the guide path (G) is provided at the end on the guide path side. It is characterized by comprising a member (42) and a receiving member driving means (53) for moving the receiving member (42) so that the stopper (51) approaches and separates from the guide path (G) .
[0014]
According to the present invention, the distance between the stopper (51) and the guide (7) is adjusted by moving the receiving member (42) according to the material diameter. At this time, since the stopper (51) and the receiving surface (50) of the bar (6) move together, the bar (6) does not roll on the receiving surface (50), and the aligned state is maintained. .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show an overall configuration of a bar feeder according to an embodiment of the present invention. FIG. 1 is a front view and FIG. 2 is a right side view. This bar feeder 1 includes a base portion 2, a feeder main body 4 attached to the base portion 2 via two support columns 3, 3, and a material disposed on the side of the feeder main body 4. And a shelf 5. A plurality of rods 6 as materials are placed in an aligned state on the material shelf 5. When the bar 6 is introduced, one bar 6 is taken out from the tip of the material shelf 5 (the end on the supply machine body 4 side) and supplied onto the introduction guide 7 of the supply machine body 4. The bar 6 is guided along a predetermined guide path G by an introduction guide 7 and is placed in the main axis of an NC lathe disposed in front of the feeder body 4 (right side in FIG. 1) by a feed pipe (not shown). It is sent.
[0016]
As shown in FIG. 3, the column 3 is fixed at a predetermined position by a pair of upper and lower fixed blocks 2 a and 2 a provided on the base portion 2. As shown in FIG. 4, the feeder main body 4 includes a rail 8 attached to the upper end of the column 3, and the rail 8 is provided with a position adjusting mechanism 10 for moving the introduction guide 7 in the vertical direction. It is done. The position adjusting mechanism 10 moves the introduction guide 7 up and down according to the rotation of the guide height adjusting screw 11 with the configuration described below.
[0017]
As shown in FIGS. 4 to 6, the guide height adjusting screw 11 is rotatably supported around its axis by a housing 13 attached to one side surface of the rail 8 via a support plate 12. A rod 14 is slidably inserted into the center hole 13 a of the housing 13, and the male screw portion 11 a of the guide height adjusting screw 11 is screwed into the rod 14. Three brackets 15 are mounted on the other side surface of the rail 8 at appropriate intervals in the longitudinal direction of the rail 8 (see FIG. 4), and intermediate transmission parallel to the bar 6 is provided between the brackets 15. The shaft 16 is mounted so as to be rotatable about the axis. A slide rail 17 that is movable in the vertical direction is attached to each bracket 15, and a guide bracket 18 is fixed to the upper end portion of the slide rail 17. Then, the introduction guide 7 is attached to the upper end of each guide bracket 18.
[0018]
A single linkage plate 19 corresponding to the rod 14 and three linkage plates 20 corresponding to the brackets 15 are connected to the intermediate transmission shaft 16 so as to be integrally rotatable. One end of the connecting plate 19 is inserted into a slit 14a formed on the other end of the rod 14, and a pin 21 mounted on the rod 14 is rotatably fitted in a groove 19a provided in the insertion portion. Further, a groove 20a is provided at the tip of each linkage plate 20, and a pin 22 attached to the slide rail 17 is rotatably fitted in the groove 20a.
[0019]
When a handle (not shown) is fitted in a square hole 11b provided in the height adjustment screw 11 and the height adjustment screw 11 is rotated, the rod 14 advances and retreats in the axial direction according to the amount of rotation, and the advance and retreat movement thereof. Is converted into a rotational movement of the intermediate transmission shaft 16 by the pin 21 and the linkage plate 19. The rotation of the intermediate transmission shaft 16 is converted into the vertical motion of the slide rail 17 by the linkage plate 20 and the pin 22, whereby the guide bracket 18 and the introduction guide 7 attached to the slide rail 17 are moved up and down.
[0020]
As shown in FIG. 2, the material shelf 5 has a column 30 and a material receiver 40. As shown in FIGS. 3 and 7, the support column 30 includes a tube 32 rotatably connected to the base portion 2 via a fulcrum pin 31, and a rod 33 slidably inserted into the tube 32. The upper end of the rod 33 is rotatably connected to the material receiver 30 via a fulcrum pin 34 (see FIG. 7). The connecting pin 35 attached to the upper end of the tube 32 is selectively fitted into any one of a plurality of positioning holes 36 provided in the longitudinal direction of the rod 33 to prevent the rod 33 from sliding on the tube 32. When the positioning hole 36 for inserting the connecting pin 35 is changed, the overall length of the support column 30 is changed.
[0021]
The material receiver 40 has a shelf frame 41 and a receiving plate 42 disposed on the upper surface side thereof. The shelf frame 41 includes a plurality of prismatic shelf members 43 arranged in a direction perpendicular to the axis of the bar 6 as viewed from above the material shelf 5, and the shelf frame 41 is arranged in the axial direction of the bar 6. Three beams 44, 45, and 46 are provided for joining both ends and the middle part. The beams 44 to 46 are connected to each other by a connecting beam 47. The intermediate beam 45 is rotatably connected to the rod 33 of the support column 30 (see FIG. 7).
[0022]
As is apparent from FIGS. 4 to 6, the three guide brackets 18 provided in the feeder main body 4 and the shelf members 43 corresponding to the guide brackets 18 are rotatably connected by the connecting pins 48. Accordingly, when the guide height adjusting screw 11 is operated to change the height of the introduction guide 7, the shelf frame 41 swings around the fulcrum pin 34 in association with the height of the introduction guide 7, and the guide of the introduction guide 7 and the material shelf 5. The relationship in the height direction with the side end is properly maintained. The connecting pin 48 can be inserted and removed. When the connecting pin 48 is pulled out, as shown by an imaginary line L in FIG. 3, the material shelf 5 is switched to the stowed posture in which the support column 30 and the material receiver 40 are vertically set up, and the material shelf is placed on the side of the feeder body 4. 5 can be accommodated compactly. The material shelf 5 can be fixed in the retracted position by the transport jig J that connects the base portion 2 and the bracket 30a of the support column 30.
[0023]
As shown in FIG. 8, the receiving plate 42 is formed in a bowl shape having three wall surfaces orthogonal to each other. Each receiving plate 42 is put on the shelf member 43 from above and is prevented from being removed by a pin 49. The receiving plate 42 is movable in the longitudinal direction of the shelf member 43, and each upper surface provides a receiving surface 50 for the bar 6. As shown in FIGS. 5 and 6, the movement of the bar 6 placed on the receiving surface 50 to the introduction guide 7 is regulated at the tip of each receiving plate 42 (the end on the feeder main body 4 side). The stopper 51 is fixed. The bar 6 is fed to the introduction guide 7 over the stopper 51 by a feed mechanism (not shown).
[0024]
The rear ends of the receiving plates 42 are connected to each other by a beam 52. As shown in FIGS. 9 and 10, a shelf adjustment screw 53 is rotatably attached to the beam 52, and a male screw portion 53 a of the shelf adjustment screw 53 is a nut 46 a integral with the beam 46 connecting the shelf member 43. Screwed into. When a handle (not shown) is attached to the square hole 53c provided in the head 53b of the shelf adjustment screw 53 and the shelf adjustment screw 53 is rotated, the receiving plate 42 moves in the longitudinal direction of the shelf member 43 and the stopper 51 is moved. It approaches or moves away from the introduction guide 7. At the time of this adjustment, the receiving plate 42 and the bar 6 supported by the receiving plate 42 move together, so that the alignment state of the bar 6 is not lost.
[0025]
In order to grasp the adjustment state of the position of the receiving plate 42, a scale plate 60 is attached to the beam 52, and an indicator 61 indicating the specific position of the scale plate 60 is attached to the beam 46. Further, in order to fix the receiving plate 42 adjusted to a desired position, a fixing plate 62 is attached to the beam 52, and a bolt 63 is attached to the elongated hole 62a. By tightening the bolt 63 with respect to the beam 46, the receiving plate 42 and the shelf member 43 can be connected to each other to restrain the receiving plate 42 at a fixed position.
[0026]
In the correspondence between the above embodiment and the claims, the connecting pin 48 serves as the linking means, the column 30 of the material shelf 5 serves as the support portion, the material receiver 40 serves as the material receiving portion, and the connecting pin 48 serves as the guide and the material receiving portion. The receiving plate 42 corresponds to the receiving member, and the shelf adjusting screw 53 corresponds to the receiving member driving means. However, the present invention is not limited to the above embodiment, and can be implemented with various modifications. For example, the material shelf 5 may be translated in the vertical direction in conjunction with the elevation of the introduction guide 7.
[0027]
【The invention's effect】
As described above, according to the first aspect of the present invention, the bar guide and the material shelf are moved in association with each other in the height direction of the bar. It can be maintained properly regardless of the size. Since the effort required for the height adjustment work is not different from that for adjusting the height of the guide alone, the setup time and the cost required for it are not increased. In addition, in the invention of claim 2, the height of the material shelf and the guide can be arbitrarily set by changing the posture of the material shelf by swinging the support portion and the material receiver with respect to the support portion, and the material shelf Can be stored compactly in the side of the bar feeder. In the invention of claim 3, the material shelf can be switched to the retracted position to minimize the protrusion of the material shelf to the side of the bar material feeder, whereby the bar material feeder can be transported and stored. Can be handled easily.
[0028]
In the invention of claim 4, since the receiving member itself provided with the receiving surface of the bar is moved, there is no possibility that the bar rolls on the receiving surface and the alignment state is lost, and the position adjustment of the material shelf with respect to the guide is conventionally performed. Easier to do.
[Brief description of the drawings]
FIG. 1 is a front view of a bar feeder according to an embodiment of the present invention.
2 is a right side view of the bar feeder of FIG. 1. FIG.
FIG. 3 is a diagram showing a state in which the main part of the bar feeder shown in FIG. 1 is viewed from the front in the bar feed direction.
4 is a plan view of a material shelf attached to the bar feeder of FIG. 1. FIG.
FIG. 5 is an enlarged view showing a V portion in FIG. 3;
6 is an enlarged view showing a VI part in FIG. 4;
7 is an arrow perspective view from the VII direction of FIG. 3;
8 is an enlarged sectional view taken along line VIII-VIII in FIG.
FIG. 9 is an enlarged view showing a part IX in FIG. 4;
10 is an arrow perspective view from the X direction in FIG. 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bar material supply machine 2 Base part 4 Supply machine main body 5 Material shelf 6 Bar material 7 Introductory guide 30 Strut 40 Material receiver 41 Shelf frame 42 Receiving plate 43 Shelf member 50 Bar material receiving surface 51 Stopper

Claims (4)

A material shelf on which the bar material is placed, and a guide for guiding the bar material supplied from the material shelf along a predetermined guide path, and at least the guide side of the guide and the material shelf The end portions of the rods are provided so as to be position-adjustable in the height direction of the bar, and the height of the other is changed between the guide and the material shelf in conjunction with the change of the height of one of them. A bar feeder that is provided with a linking means.   The material shelf includes a support portion that is swingably supported by a base portion of the bar feeder, and a material receiving portion that is pivotally connected to an upper end portion of the support portion to receive the bar material. 2. The bar according to claim 1, wherein the linkage means includes a member that rotatably connects the guide-side end portion of the material receiving portion and the guide to each other. Feeding machine.   3. The bar feeder according to claim 2, wherein the material shelf can be switched to a retracted posture in which the material receiving portion is substantially vertical by releasing the connection by the connecting member. The material shelf is disposed adjacent to a bar guide path by a bar feeder and provides a receiving surface for the bar, and the end of the bar on the guide path side is provided with the bar to the guide path. claim that the receiving member stopper for restricting the movement is provided, wherein the stopper is provided with a receiving member driving means for moving the receiving member so as to approach and separate from the said guide path The bar feeder according to 1 .

Images