The present disclosure relates to a wire rod forming machine that forms, with a plurality of tools, a wire rod fed through a quill.
A conventionally known wire rod forming machine of this type includes: a quill projecting from the central part in the front surface of an upright base plate; an extending supporting part extending from one side of the front surface of the base plate; and a mechanism provided on the extending supporting part for shifting tools (for example, see Japanese Unexamined Patent Application Publication No. JP 2019-5801 A).
A wire rod forming machine with a greater number of movable axes of the mechanism for shifting the tools exhibits improved versatility and provides a wider variety in the shape of the wire rod product. On the other hand, the increased number of movable axes increases the size of the whole wire rod forming machine and costs. Furthermore, the desired degree of versatility of a wire rod forming machine varies depending on the user of the wire rod forming machine.
In view of the circumstances, an object of the present disclosure is to provide the technique that makes it possible to readily change the number of movable axes of tools of a wire rod forming machine and to downsize the whole wire rod forming machine.
A wire rod forming machine according to one aspect of the present invention is a wire rod forming machine including: a base plate including a first basal surface on its front side, the first basal surface being vertical; a quill projecting from the first basal surface; a wire rod guide hole penetrating through the quill in a front-rear direction; a wire rod feeding apparatus provided on a rear side of the base plate and configured to feed the wire rod to the front side of the base plate through the wire rod guide hole; a first XY table mounted on the first basal surface and including an output part that shifts to any desired position in a first direction and a second direction being perpendicular to each other within a plane parallel to the first basal surface; a slide plate provided at the output part of the first XY table and being plate-like and parallel to the first basal surface, on one side relative to the quill in the first direction, the slide plate covering the first basal surface across one side and other side relative to the quill in the second direction, and on other side relative to the quill in the first direction, the slide plate not covering the first basal surface at least on the one side relative to the quill in the second direction, the slide plate including at one lateral part a recessed part configured to receive the quill in the first direction; a plurality of apparatus fixing parts configured to fix a plurality of first tool shifting apparatuses arranged radially about the recessed part to the slide plate, the first tool shifting apparatuses being configured to rotationally or linearly shift while holding tools; an extending supporting part fixed to a position on the other side relative to the quill in the first direction in the first basal surface and on the one side relative to the quill in the second direction, the extending supporting part including a second basal surface perpendicular to the first basal surface so as to be oriented in the other side in the second direction; a second XY table mounted on the second basal surface and including an output part configured to shift to any desired position in a plane parallel to the second basal surface; and a second tool shifting apparatus mounted on the output part of the second XY table and configured to rotationally or linearly shift while holding a tool.
In the following, with reference to
The first and second mounts 11, 12 each have a box-like structure. Their respective upper surfaces 11A, 12A are disposed to be horizontal and flush to each other. The second mount 12 is fixed to the rear surface of the first mount 11. The lower surface of the second mount 12 is positioned higher than the lower surface of the first mount 11. The second mount 12 is supported from beneath by leg parts 12B extending downward from its lower surface.
At the upper surface 11A of the first mount 11, a base plate 13 and a first back plate 14 stand vertically. At the upper surface 12A of the second mount 12, a second back plate 15 stands vertically. The base plate 13 and the first and second back plates 14, 15 are parallel to the lateral direction H2.
Specifically, the first and second back plates 14, 15 each have a shape of a quadrangular plate member having both upper corners diagonally cut off. As shown in
As shown in
As shown in
As shown in
The rear one of the rotary shaft parts projects rearward than the first back plate 14. This projecting portion is coupled with gears to a not-shown servomotor mounted on the rear surface side of the first back plate 14. Thus, the wire rod feeding apparatus 16 together with the wire rod 90 is position-controlled to any desired rotation position. Note that, while the wire rod feeding apparatus 16 according to the present embodiment is rotatable with a quill 19, which will be described later, about the wire rod feeding line, the wire rod feeding apparatus 16 may not be rotatable. Furthermore, while the wire rod 90 fed by the wire rod feeding apparatus 16 according to the present embodiment has a circular cross section, the wire rod 90 may have an oval or quadrangular cross section.
To the front one of the rotary shaft parts of the wire rod feeding apparatus 16, the quill 19 shown in
Note that, in the second back plate 15 shown in
As shown in
As shown in
As shown in
As has been described above, the extending supporting part 21 according to the present embodiment has a housing structure. Here, so long as the extending supporting part 21 includes the second basal surface 23 perpendicular to the first basal surface 20, it may not have a housing structure. For example, the extending supporting part may be structured by a rear plate which is overlaid and fixed onto the first basal surface 20 by bolts, an upper plate perpendicular thereto, and a reinforcement rib connecting between the upper plate and the rear plate.
On the second basal surface 23, a second XY table 24 is mounted. The second XY table 24 includes: an intermediate table 26 that is shiftable to any desired position in the lateral direction H2 by a ball screw mechanism 24A provided between the intermediate table 26 and the second basal surface 23; and an output table 29 that is shiftable to any desired position in the front-rear direction H1 by a ball screw mechanism 24B provided between the output table 29 and the intermediate table 26. The output table 29 functions as the output part of the second XY table 24.
Specifically, to the second basal surface 23, a pair of support rails 25 extending in parallel to the lateral direction H2 is fixed. A plurality of sliders 25S fixed to the lower surface of the flat-plate like intermediate table 26 slidably engage with the pair of support rails 25. Furthermore, in the second basal surface 23, between the pair of support rails 25, a ball screw 27A extending in the lateral direction H2 in parallel to the support rails 25 is provided. The ball screw 27A has its both ends rotatably supported by a pair of rotary mounts 27C rising from the second basal surface 23. The ball screw 27A is driven to rotate by a servomotor 28 mounted on the extending supporting part 21. A ball nut 27B fixed to the lower surface of the intermediate table 26 screws with the ball screw 27A, to structure the ball screw mechanism 24A.
To the upper surface of the intermediate table 26, a pair of support rails 31 extending in parallel to the front-rear direction H1 is fixed. A ball screw 32A extending in the front-rear direction H1 is rotatably supported by a pair of rotary mounts 32C rising from the intermediate table 26 and disposed between the pair of support rails 31. The ball screw 32A is driven to rotate by a servomotor 33 mounted on the intermediate table 26. A plurality of sliders 31S fixed to the lower surface of the output table 29 slidably engage with the pair of support rails 31. A ball nut (not shown) fixed to the lower surface of the output table 29 screws with the ball screw 32A, to structure the ball screw mechanism 24B.
In the second XY table 24 according to the present embodiment, while two movable axes are implemented as the ball screw mechanisms 24A, 24B, one or both of the movable axes may be implemented as a mechanism other than the ball screw mechanism. The mechanism other than the ball screw mechanism may be a rack and pinion, or a structure including a pair of pulleys or a pair of sprockets and a belt or a chain disposed across the pulleys or the sprockets, in which the belt or the chain is fixed to the intermediate table 26 or the output table 29. The same holds true to the first XY table 40 which will be described later.
To the output table 29, a second tool shifting apparatus 34 is mounted. The second tool shifting apparatus 34 includes a deceleration mechanism part 36 provided at one end of the servomotor 35, and a circular rotary table 37 fixed to the output rotary part of the deceleration mechanism part 36. The second tool shifting apparatus 34 is fixed to the output table 29 such that the rotation center of the rotary table 37 becomes parallel to the lateral direction H2. On the rotary table 37, a plurality of tools 38 are mounted at positions equally dividing the rotary table 37 about the central axis. The tools 38 extend in the radial direction of the rotary table 37 and project laterally from the rotary table 37. As shown in
Note that, while the wire rod forming machine 10 according to the present embodiment includes one second tool shifting apparatus 34 at the output table 29, a plurality of second tool shifting apparatuses 34 may be included. Furthermore, the second tool shifting apparatus 34 may include, for example, a plurality of servomotors so as to separately drive a plurality of tools. More specifically, the second tool shifting apparatus 34 may include two servomotors and separately drive two tools of a pair, so that the wire rod 90 held between the pair of tools is cut or bent. Furthermore, as disclosed in JP 2019-5801 A, the second tool shifting apparatus 34 may include three servomotors.
As shown in
Specifically, as shown in
At the bottom surface of each of the supporting part receiving grooves 44, a slide rail 45 is fixed to the center in the width direction. With each slide rail 45, a pair of sliders 45S slidably engages. The sliders 45S project frontward than the first basal surface 20. To the sliders 45S, the intermediate plate 41 is fixed.
A rotary mount 46B projects from the mount receiving part 43B in the driving part receiving groove 43. The rotary mount 46B rotatably supports one end of a ball screw 48A. The ball screw 48A extends from the rotary mount 46B to the nut receiving part 43A. The ball screw 48A screws with a ball nut 48B, to structure the ball screw mechanism 40A. On the tip surface of the lateral projecting part 13T of the base plate 13, a servomotor 47 is mounted so as to close the end opening of the driving part receiving groove 43 via a bracket 46A. The rotary output shaft of the servomotor 47 is integrally rotatably connected to the ball screw 48A.
The above-described plurality of sliders 45S and the ball nut 48B are fixed to the rear surface of the intermediate plate 41 shown in
To the intermediate plate 41, support rails 50 extending in the top-bottom direction H3 are respectively fixed at three positions, namely, the rightward position, and the upper and lower portions relative to the recessed part 41A. The support rail 50 on the rightward side in the intermediate plate 41 extends in the entire top-bottom direction H3 of the intermediate plate 41. The other two support rails 50 extend in the entire top-bottom direction H3, in the upper portion and the lower portion relative to the recessed part 41A, respectively. With the support rails 50, sliders 50S slidably engage.
As shown in
The plurality of sliders 50S are fixed to the rear surface of the slide plate 42 shown in
The slide plate 42 includes a recessed part 42A at the substantial center in the left side of a rectangle elongated in the top-bottom direction H3. The portion upper than the recessed part 42A projects leftward than the portion lower than the recessed part 42A. The upper and lower right corner parts are diagonally cut off. The recessed part 42A of the slide plate 42 has the shape corresponding to a quadrangle having its corners rounded. The depth in the lateral direction H2 of the recessed part 42A is identical to that of the recessed part 41A of the intermediate plate 41, and the height thereof is greater than that of the recessed part 41A of the intermediate plate 41. The entire length in the top-bottom direction H3 of the slide plate 42 is smaller than that of the intermediate plate 41. The width of the portion upper than the recessed part 42A and the width of the portion lower than the recessed part 42A in the slide plate 42 are identical to the width of the portion upper than the recessed part 41A and the width of the portion lower than the recessed part 41A in the intermediate plate 41. As seen in a front view, the right side of the slide plate 42 and the right side of the intermediate plate 41 are overlapped with each other, and the vertical side on the depth side of the recessed part 42A of the slide plate 42 and the vertical side on the depth side of the recessed part 41A of the intermediate plate 41 are overlapped with each other.
The slide plate 42 is provided with a plurality of apparatus fixing parts 70 for fixing a plurality of first tool shifting apparatuses 54. As shown in
Each first tool shifting apparatus 54 is fixed to the apparatus fixing part 70 of the slide plate 42 via a bracket 58. The bracket 58 is structured by, for example, first and second plate parts 59, 60 being perpendicular to each other to be L-shaped, and a rib 61 disposed across the first and second plate parts 59, 60. The second plate part 60 is provided with a plurality of mount holes 60A. Corresponding to the plurality of mount holes 60A, each apparatus fixing part 70 of the slide plate 42 is provided with a plurality of screw holes 70A (see
The first plate part 59 is provided with a rectangle groove 59M extending in the front-rear direction H1 on the side opposite to the rib 61. Next to the rectangle groove 59M, a plurality of long holes 59A extending in the front-rear direction H1 are formed. To the tip of the first plate part 59, a plate member 62 is fixed so as to close the end opening of the rectangle groove 59M. The plate member 62 projects from the first plate part 59 on the side opposite to the rib 61. At the projecting portion of the plate member 62, a not-shown screw hole is formed for an adjustment bolt 62B to screw with.
On the other hand, at the side surface of the first tool shifting apparatus 54 (specifically, the side surface of the deceleration mechanism part 56), a side-surface protruding part 54T having a quadrangular cross section is formed. A not-shown plurality of screw holes are formed beside the side-surface protruding part 54T. The side-surface protruding part 54T slidably engages with the rectangle groove 59M of the bracket 58. The adjustment bolt 62B shifts the first tool shifting apparatus 54 to any desired position in the longitudinal direction of the rectangle groove 59M. A bolt inserted into the long hole 59A fixes the first tool shifting apparatus 54 to the first plate part 59.
Note that, while each first tool shifting apparatus 54 rotationally shiftably holds the tool 57, each first tool shifting apparatus 54 may linearly shift the tool 57 in parallel to the first basal surface 20. Similarly to the second tool shifting apparatus 34, each first tool shifting apparatus 54 may also be provided with a plurality of servomotors so as to separately drive a plurality of tools.
As shown in
As shown in
The foregoing is the description of the structure of the wire rod forming machine 10 according to the present embodiment. Next, a description will be given of the operation and effect of the wire rod forming machine 10. In the wire rod forming machine 10 according to the present embodiment, the wire rod 90 may be formed using just the first tool shifting apparatuses 54 supported on the first XY table 40. Alternatively, the wire rod 90 may be formed using just the second tool shifting apparatus 34 supported on the second XY table 24. Furthermore, the wire rod 90 may be formed using both of them. Thus, the wire rod forming machine 10 according to the present embodiment can form a wire rod product of any of various shapes. Here, the slide plate 42 included in the output part of the first XY table 40 includes, on one lateral part, the recessed part 42A configured to receive the quill 19, and the plurality of apparatus fixing parts 70 for fixing the plurality of first tool shifting apparatuses 54 radially arranged about the recessed part 42A. Thus, the number of tool shifting apparatuses, that is, the number of the movable axes of the tools of the wire rod forming machine 10 is readily changeable. Additionally, despite the increased number of the movable axes of the tools, the whole wire rod forming machine 10 can be compact.
Furthermore, in the wire rod forming machine 10 according to the present embodiment, the base plate 13 is provided with the driving part receiving groove 43 configured to receive the ball screw mechanism 40A for sliding the intermediate plate 41 in the first XY table 40 relative to the base plate 13. This contributes to reducing the thickness of the first XY table 40 in the front-rear direction. Additionally, the ball nut 51B of the ball screw mechanism 40B for sliding the slide plate 42 in the first XY table 40 relative to the intermediate plate 41 is supported by the nut supporting part 42T laterally extending from the outer edge of the base plate 13. This also contributes to reducing the thickness of the first XY table 40 in the front-rear direction. Thus, the compact wire rod forming machine 10 is provided.
On the other side with reference to the quill 19 in a second direction (that is, on the side opposite to the extending supporting part 21), the slide plate 42 covers the first basal surface 20 across one side and the other side with reference to the quill 19 in a first direction. This allows the slide plate 42 to be great in size making full use of the region on the front side of the base plate 13. This allows increasing the number of the first tool shifting apparatuses 54 that can be mounted on the base plate 13.
Furthermore, in the wire rod forming machine 10, the movable direction of the output part (the intermediate plate 41) by the ball screw mechanism 40A included in the first XY table 40 and the movable direction of the output part (the intermediate table 26) by the ball screw mechanism 24A included in the second XY table 24 agree with each other. This contributes to simplifying the control configuration.
The extending supporting part 21 is fixed to the position near one end in the lateral direction H2 in the first basal surface 20 and near the lower end in the top-bottom direction. The second basal surface 23 is oriented upward and horizontally provided. Therefore, the region horizontally next to the extending supporting part 21 can be used as the region for forming the wire rod 90. This improves visibility of the region where the wire rod 90 is formed in exerting the teaching-playback control, thereby facilitating the teaching work. Furthermore, the extending supporting part 21 is stabilized by being supported also from beneath by the first mount 11. This stabilizes the operation of the second tool shifting apparatus 34 on the second XY table 24.
Note that, in the present embodiment, the lateral direction H2 which is the horizontal direction corresponds to “the first direction” in the scope of claims. The top-bottom direction H3 which is the vertical direction corresponds to “the second direction” in the scope of claims. Here, “the first direction” is not specified to the horizontal direction, and may be the vertical direction or an inclined direction relative to the horizontal direction and the vertical direction.
In the embodiment, while the driving part receiving groove 43 configured to receive the ball screw mechanism 40A is provided at the base plate 13, the driving part receiving groove configured to receive the ball screw mechanism 40B may be provided also at the intermediate plate 41. Alternatively, the driving part receiving groove 43 may be provided only to the intermediate plate 41. Furthermore, in the embodiment, while the nut supporting part 42T extends from the slide plate 42 and the ball screw mechanism 40A is provided next to the movable region of the slide plate 42, the nut supporting part may be provided also at the intermediate plate 41 and the ball screw mechanism 40B may be disposed next to the movable region of the intermediate plate 41. Alternatively, the nut supporting part may be provided only at the intermediate plate 41 and the ball screw mechanism 40B may be provided next to the movable region of the intermediate plate 41.
Number | Date | Country | Kind |
---|---|---|---|
JP2019-221069 | Dec 2019 | JP | national |
Number | Name | Date | Kind |
---|---|---|---|
5937685 | Matsuoka et al. | Aug 1999 | A |
7024901 | Yamaguchi et al. | Apr 2006 | B2 |
8166786 | Speck | May 2012 | B2 |
8336353 | Tsuritani | Dec 2012 | B2 |
8573014 | Tsuritani | Nov 2013 | B2 |
10286435 | Nojima et al. | May 2019 | B2 |
20050044914 | Kao | Mar 2005 | A1 |
20090007619 | Speck | Jan 2009 | A1 |
20160332212 | Yang | Nov 2016 | A1 |
20190001386 | Nojima | Jan 2019 | A1 |
Number | Date | Country |
---|---|---|
1171309 | Jan 1998 | CN |
1520949 | Aug 2004 | CN |
205519402 | Aug 2016 | CN |
205613989 | Oct 2016 | CN |
208913041 | May 2019 | CN |
202015104341 | Sep 2015 | DE |
2007-030038 | Feb 2007 | JP |
2009-160633 | Jul 2009 | JP |
2011098389 | May 2011 | JP |
4890508 | Mar 2012 | JP |
2013107103 | Jun 2013 | JP |
5325369 | Oct 2013 | JP |
5682966 | Mar 2015 | JP |
3201031 | Nov 2015 | JP |
2019005801 | Jan 2019 | JP |
6682171 | Apr 2020 | JP |
200906515 | Feb 2009 | TW |
M560349 | May 2018 | TW |
Entry |
---|
Mar. 16, 2020 Japanese Grant Decision issued in Japanese Patent Application No. 2019-221069. |
Dec. 6, 2019 Japanese Patent Certificate issued in Japanese Patent Application No. 2019-221069. |
Nov. 26, 2020 Office Action issued in Taiwanese Patent Application No. 109129241. |
Feb. 2, 2021 Chinese Office Action issued in Chinese Patent Application No. 202010846247.0. |
Mar. 3, 2021 Extended European Search Report issued in European Patent Application No. 20192625.0. |
Jan. 17, 2022 Office Action issued in European Application 20 192 625.0. |
Number | Date | Country | |
---|---|---|---|
20210170462 A1 | Jun 2021 | US |