JP4336637B2 - Wire feeder drive mechanism in spring manufacturing equipment - Google Patents

Description

  The present invention generally relates to a wire feeder drive mechanism used in a spring manufacturing apparatus. More specifically, the present invention relates to a mechanism of a spring manufacturing apparatus that can simplify the operation mechanism of a tool seat and reduce the time required for adjusting the tool set of the spring manufacturing apparatus.

  Since springs can be widely used to absorb or reduce impact, they have become an indispensable element in electrical and mechanical equipment such as cars, toys, electrical appliances, switches, and medical equipment. . There is a further need to produce springs in all shapes. This is not what a conventional spring manufacturing apparatus can achieve. Therefore, developing next-generation products to meet the great demand in the market is an important issue for engineers working in the field of spring manufacturing equipment.

  As shown in FIG. 1, the conventional spring manufacturing apparatus has an apparatus substrate 10a and a work table 20a. The apparatus substrate 10a has a wire feeder 11a provided with a wire feeding chuck 12a at the front end. The feeding chuck 12a makes it possible to produce a metal wire that will later be formed into a spring. In the work table 20a, a feeder hole 21a capable of accommodating the feeding chuck 12a is formed at the center. A plurality of tool sheets 22a are mounted on the work table 20a. Each tool seat 22a has a drive rod 221a, a rail cam 222a, and a tool set 223a. By using the drive rod 221a and the rail cam 222a, the tool set 223a can perform a linear or curved movement to bend, wind, or cut the metal wire.

  However, the conventional spring manufacturing apparatus has some fundamental problems. First, in order to reduce manufacturing costs, one spring manufacturing device is used to manufacture all kinds of springs. The tool sheet 22a fixed on the work table 20a needs to be replaced and adjusted in accordance with a change in the manufacturing process. The replacement and adjustment of the tool sheet 22a takes time. Therefore, the advantages in terms of production efficiency and production cost are very small. Second, small disparities in material quality, heat treatment methods, or wire diameters of metal materials greatly affect the properties of the spring formed. Only professional technicians are allowed to adjust and calibrate conventional spring manufacturing equipment. Therefore, it is difficult to control the quality of the spring product. Third, in order for the tool set 223a to perform a curved motion, generally a complicated driving member is further provided. This auxiliary drive member not only increases material and manufacturing costs, but is difficult to assemble and maintain. Fourth, when a spring having a complicated structure is required in various manufacturing industries, the tool sheet 22a normally mounted on the work table 20a is not sufficient. Thus, the demand in the modern manufacturing industry cannot be met.

  Therefore, the present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to manufacture a spring product having a complicated structure in manufacturing a spring, and to improve production efficiency. It is another object of the present invention to provide a wire feeder driving mechanism in a spring manufacturing apparatus that can reduce the production cost and make handling and maintenance of the spring manufacturing apparatus easy and convenient.

(1) A wire feeder driving mechanism fixed on an apparatus substrate of a spring manufacturing apparatus, a feeding box supplied with a wire from a wire reel rotated by a winding motor, and a feeding rotated by a spindle rotating motor A wire feeder provided with a chuck, a first shaft driving device having one end connected to the wire feeder for moving the wire feeder in a first direction, and the first shaft driving device. in order to move in the first direction and the second direction is perpendicular, and one end connected to Ru second axial drive device to the first axis drive device, wherein the wire feeder is a three-dimensional In order to move the second shaft drive device in the first direction and a third direction perpendicular to the second direction. A wire feeder drive mechanism comprising: a third shaft drive device having an end portion connected to a second shaft drive device and the other end portion connected to the device substrate .

(2) The first shaft driving device moves along a vertical direction of the spring manufacturing device, the second shaft driving device moves along a first horizontal direction of the spring manufacturing device , and the third The wire driving mechanism according to (1), wherein the shaft driving device moves along the second horizontal direction of the spring manufacturing apparatus .

  (3) The first shaft driving device is formed at a first shaft base portion provided with a slide rail and a slide block attached on the slide rail, and at one end of the first shaft base portion. A fixed brace, a servo motor mounted inside the fixed brace, and one end inserted into the fixed brace and connected to the shaft of the servo motor so as to be parallel to the movable direction of the slide block. The wire feeder drive mechanism according to (1), further comprising: a first shaft lead screw provided; and a flange mount that is screwed into the first shaft lead screw and is firmly connected to the wire feeder.

  (4) The second shaft driving device includes: a second shaft base portion fixed on the device substrate having a slide rail and a slide block attached on the slide rail; and the second shaft base portion. A fixed brace fixed to one end, a servo motor attached to the inside of the fixed brace, and one end inserted into the fixed brace and connected to the shaft of the servo motor, (2) further including a second shaft lead screw provided parallel to the movable direction, and a flange mount that is screwed into the second shaft lead screw and is firmly connected to the first shaft driving device. Wire feeder drive mechanism.

(5) The third shaft drive device includes: a third shaft base portion fixed on the device substrate having a slide rail and a slide block attached on the slide rail; and a third shaft base portion. A fixed brace fixed to one end, a servo motor attached to the inside of the fixed brace, and one end inserted into the fixed brace and connected to the shaft of the servo motor, (3) further including a third shaft lead screw provided parallel to the movable direction, and a flange mount that is screwed into the third shaft lead screw and is firmly connected to the second shaft driving device. Wire feeder drive mechanism.
(6) the first axial drive device is moved along the first horizontal direction of the spring manufacturing apparatus, the second axis drive equipment moves along the vertical direction of the spring manufacturing apparatus, the first The shaft feeder of 3 is a wire feeder drive mechanism as described in (1) which moves along the 2nd horizontal direction of a spring manufacturing apparatus .

( 7 ) The first shaft driving device moves along a first horizontal direction of the spring manufacturing device, and the second shaft driving device moves along a second horizontal direction of the spring manufacturing device, A 3rd axis drive device is a wire feeder drive device given in (1) which moves along the perpendicular direction of a spring manufacturing device.

  According to the present invention, a drive device that moves two-dimensionally or three-dimensionally is attached to the spring manufacturing apparatus, and the wire feeder can be moved two-dimensionally or three-dimensionally, thereby being provided in the spring manufacturing apparatus. The movement of the tool set can be linearized to simplify the tool seat drive mechanism. In addition, a spring product having a complicated structure can be manufactured. Furthermore, the time required for adjusting the tool set is reduced to improve the production efficiency and the production cost, thereby making the handling and maintenance of the spring manufacturing apparatus easy and convenient.

  The above and other objects of the present invention will become apparent to those skilled in the art from the following description of the preferred embodiments.

  The invention described in the claims is considered to be further explained by the following detailed description together with the above general description.

  A preferred embodiment of the present invention will be described below using an example shown in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and the description to describe the same or similar parts.

  As shown in FIG. 2, the present invention provides a wire feeder drive mechanism in a spring manufacturing apparatus. The wire feeder drive mechanism includes a wire feeder 10, a first shaft drive device 20, and a second shaft drive device 30. For ease of explanation, a three-dimensional Cartesian coordinate axis is additionally shown in some figures. In addition, the Y-axis in a coordinate axis shows the perpendicular direction of a spring manufacturing apparatus.

  The wire feeder 10 includes a feeding box 11, a winding motor 15, a feeding motor 16, a feeding chuck 18, and a spindle rotation motor 19. A fixed platform 12 is attached to one side surface of the feeding box 11. The shaft mount 13 extends from the fixed platform 12. The shaft hole 14 is formed at the center of the shaft mount 13. The winding motor 15 and the feeding motor 16 are connected to the rear part of the feeding box 11. The take-up motor 15 rotates the metal wire reel in order to supply the metal wire to the wire feeder 10. The feeding motor 16 feeds the metal wire forward by the rotation of the feed roller set 17. The feeding chuck 18 has a central hole that is used to hold the metal wire and feed it forward. The spindle rotation motor 19 can drive and rotate the feeding chuck 18, and the feeding chuck 18 facilitates bending the metal wire to various angles.

  The first shaft driving device 20 can be arranged so as to be parallel to the X axis, the Y axis, or the Z axis shown in the drawing. In the present embodiment, the first shaft driving device 20 is disposed in parallel with the Y axis. The first shaft driving device 20 includes a base portion (hereinafter referred to as Y-axis base portion) 21 in the Y-axis direction, a servo motor 22, a lead screw (hereinafter referred to as Y-axis lead screw) 23 extending in the Y-axis direction, and a flange mount. 24. The Y-axis base portion 21 is composed of an L-shaped horizontal board 211 and a vertical frame 212. The shaft mount 213 is formed so as to protrude from the central portion on one side surface of the horizontal board 211. The shaft hole 214 opens at the center of the shaft mount 213. The vertical frame 212 has a plurality of slide rails 215 that are parallel to each other on both sides. A plurality of slide blocks 216 are mounted on each slide rail 215. The slide block 216 is connected to the fixed platform 12 of the wire feeder 10. Further, a fixed brace 217 is formed to protrude from the top of the vertical frame 212. The fixed brace 217 is used to attach the servo motor 22. The servo motor 22 has a motor shaft that is provided so as to extend in the longitudinal direction of the Y-axis lead screw 23 and is connected to the Y-axis lead screw 23 by a shaft coupler or a mechanical element. The Y-axis lead screw 23 is provided in parallel with the movable direction of the slide rail 215. The flange mount 24 is screwed into a lead screw 23 extending in the Y-axis direction, one end is supported by the shaft hole 14 of the feeding box 11, and the other end is fastened by a bolt / nut or other means. And fixed on the shaft mount 13 of the feeding box 11. By having the above configuration, the first shaft driving device is movable in the Y-axis direction.

  The second axis driving device 30 can be arranged in parallel with the X axis, the Y axis, or the Z axis. In the present embodiment, the second drive device 30 is provided in parallel with the X axis. The movable direction of the second shaft driving device 30 is the X-axis direction perpendicular to the moving direction of the first shaft driving device 20, that is, the horizontal direction of the spring manufacturing apparatus. The second shaft drive device 30 is fixed on the spring manufacturing device by bolts and nuts or other mechanical elements, and further, the first shaft drive device 20 allows the wire feeder 10 to move in a two-dimensional plane. Assemble. The second shaft drive device 30 includes a base portion (hereinafter referred to as X-axis base portion) 31 in the X-axis direction, a servo motor 32, a lead screw (hereinafter referred to as X-axis lead screw) 33 extending in the X-axis direction, and a flange mount. 34. The X-axis base portion 31 is fixed on the spring manufacturing apparatus by a plurality of bolts / nuts or other means. The shaft mount 311 is formed so as to protrude from the central portion of one side surface of the X-axis base portion 31. The shaft hole 312 opens at the center of the shaft mount 311. The X-axis base portion 31 has a plurality of parallel slide rails 313 attached perpendicular to the opening direction of the shaft hole 312. A plurality of slide blocks 314 are mounted on each slide rail 313. The horizontal board 211 of the Y-axis base portion 21 is connected to the slide block 314. Further, the fixed brace 315 is formed so as to protrude from one side surface of the X-axis base portion 31. The fixed brace 315 is used for attaching the servo motor 32. The servo motor 32 has a motor shaft which is provided so as to extend in the longitudinal direction of the X-axis lead screw 33 and is connected to the X-axis lead screw 33 by a shaft coupler or a mechanical element. The X-axis lead screw 33 is provided in parallel with the movable direction of the slide rail 313. The flange mount 34 is screwed into the X-axis lead screw 33, one end is supported by the shaft hole 214 of the Y-axis base portion 21, and the other end is secured to the Y-axis by a bolt / nut or other means. It is fixed on the shaft mount 213 of the base portion 21.

  In order to enable the wire feeder to perform two-dimensional plane movement, the direction in which the first and second shaft driving devices move is not limited to the above, and the first shaft driving device is manufactured by a spring. Moving along the horizontal direction of the device, the second shaft drive can move along the vertical direction of the spring manufacturing device. In this case, the slide rail and the servo motor provided in each axis driving device are installed in a direction perpendicular to the installation direction.

  As shown in FIGS. 3 to 5, the spring manufacturing apparatus according to the second embodiment of the present invention has a third shaft driving device 40 attached to the lower portion of the second shaft driving device 30. The third shaft drive device 40 can be arranged so as to be parallel to the X-axis, Y-axis, or Z-axis direction. In the present embodiment, the third shaft driving device 40 is provided in parallel with the Z axis. The movable direction of the third shaft driving device 40 is a direction perpendicular to the moving direction of the first and second shaft driving devices 20 and 30 (Z direction). The third shaft drive 40 is secured on the spring manufacturing device by bolts and nuts or other means. Further, the third shaft driving device 40 is assembled with the first and second shaft driving devices 20 and 30 so that the wire feeder 10 can move in three dimensions. The third shaft drive device 40 includes a base portion (hereinafter referred to as Z-axis base portion) 41 in the Z-axis direction, a servo motor 42, a lead screw (hereinafter referred to as Z-axis lead screw) 43 extending in the Z-axis direction, and a flange mount. 44. The Z-axis base portion 41 has a plurality of through holes 411 formed so that a plurality of bolts / nuts or other means can be inserted in order to fix the Z-axis base portion 41 on the spring manufacturing apparatus. A plurality of slide rails 412 parallel to each other are attached to the top of the Z-axis base portion 41. A plurality of slide blocks 413 are mounted on each slide rail 412. The X-axis base portion 31 is connected to the slide block 413. Further, the fixed brace 414 is formed so as to protrude from one side surface of the Z-axis base portion 41. The fixed brace 414 is used to attach the servo motor 42. The servo motor 42 has a motor shaft provided so as to extend in the longitudinal direction of the Z-axis lead screw 43 and connected to the Z-axis lead screw 43 by a shaft coupler or a mechanical element. The Z-axis lead screw 43 is provided in parallel with the movable direction of the slide rail 412. The flange mount 44 is screwed into the Z-axis lead screw 43, one end thereof is supported by the shaft hole 312 of the X-axis base portion 31, and the other end is X-axis by a bolt / nut or other means. It is fixed on the shaft mount 311 of the base portion 31.

  As shown in FIGS. 6 and 7, the wire feeder 10 and the work table 52 are assembled on the device substrate 51 of the spring manufacturing device 5. An apparatus substrate 51 is attached to the spring manufacturing apparatus 5 so as to be parallel to the Z axis perpendicular to the XY plane. The device substrate 51 has a long rectangular column shape. The work table 52 is attached to the end of the device substrate 51 so as to be perpendicular to the device substrate 51 and parallel to the XY plane of the spring manufacturing device 5. The work table 52 has a circular opening 53 at the center. Inside the opening 53, the feeding chuck 18 of the wire feeder 10 can move up, down, left, right, front, back, or a combination of the above directions. The work table 52 has a plurality of tool sheets 54 attached to the upper part. A tool set 55 having various functions is fixed to each end of each tool sheet 54. The tool set 55 can be moved linearly or rotated along the tool sheet 54 by driving a servo motor. The linear movement of the tool set 55 allows a tool fixed on the tool set 55 to enter and exit from the inside of the circular opening 53.

  FIG. 8 shows a partial front view of the spring manufacturing apparatus in operation according to the present invention. By operating the crank and the linkage, the tool set 55 can move linearly within the circular opening 53 provided in the work table 52 in the direction in which the tool seat 54 is attached. The Furthermore, the shaft drive devices 20, 30, 40 allow the wire feeder 10 to produce a desired displacement. The metal wire guided by the feeding chuck 18 can approach the tool set 55 in two dimensions or three dimensions. Therefore, the metal wire can produce various spring products having a complicated structure.

  As shown in FIGS. 9 to 11, in the process in which the metal wire is manufactured into a spring, the spring manufacturing apparatus is a metal guided by the feeding chuck 18 of the wire feeder 10 inside the shaft driving device 20, 30, 40. Change the position of the wire. Furthermore, when the tool set 55 exhibits a characteristic shape and structure, the spring manufacturing apparatus can manufacture various shapes and types of springs. As shown in FIGS. 9A to 9B, the position of the feeding chuck 18 is changed so that the position of the metal wire with respect to the tool set 55 can be changed. Further, as the rotation direction of the tool set 55 changes, the spring manufacturing apparatus can bend the wire upward or bend downward. As shown in FIGS. 10A and 10B, by providing the tool set 55 with a concave shape, the metal wire can be bent at a preset angle as the feeding chuck 18 moves upward and forward. The As shown in FIGS. 11A and 11B, by providing the tool set 55 with an inclined shape, the outer diameter of the spiral spring is changed as the feeding chuck 18 changes its position. The wire feeding drive mechanism in the spring manufacturing apparatus of the present invention has at least four advantages. First, by attaching the shaft driving device, the feeding chuck of the wire feeder can approach the tool set in two dimensions or three dimensions. Designed to have such characteristics, the spring manufacturing apparatus can manufacture various spring products having a complicated structure. Further, the spring manufacturing apparatus does not need to be provided with a complicated tool seat driving mechanism as in the prior art. This facilitates assembly and maintenance of the spring manufacturing apparatus. Further, the time for adjusting the tool set is greatly reduced, so that the production efficiency can be improved and the production cost can be reduced. Secondly, the movement of the toolset in the present invention is linear. This makes it easy to determine the installation position of the tool set, allows the tool set to be replaced or adjusted by a normal operator, and makes handling and maintenance of the spring manufacturing device easy and convenient. . Third, movement data of the shaft driving device is obtained, and the feeding chuck can be controlled automatically and accurately by a computer so that the feeding chuck moves as desired. Thus, it is easy to adjust the position of the feeding chuck so that the separation between the feeding chuck and the tool set is desired. Fourth, since the feeding chuck of the present invention can be moved in three dimensions, the tool set is superior in efficiency to the prior art. Thereby, the present invention improves the defect of the tool sheet in the prior art.

  While embodiments of the present invention have been described in detail above, the concepts of the present invention may be embodied in various forms, further applied, and various forms not limited by the prior art within the scope of the appended claims. Is understood to be included.

The above-described features as well as other features of the present invention will become more apparent by referring to the drawings.
It is a front view of the conventional spring manufacturing apparatus. It is an exploded view of the spring manufacturing apparatus in the 1st Embodiment of this invention. It is an exploded view of the spring manufacturing apparatus in the 2nd Embodiment of this invention. It is a partial perspective view of the spring manufacturing apparatus in the 2nd Embodiment of this invention. It is a perspective view of the spring manufacturing apparatus in the 2nd Embodiment of this invention. It is a front view of the spring manufacturing apparatus of this invention. It is a side view of the spring manufacturing apparatus of this invention. It is the partial front view of the spring manufacturing apparatus which showed the motion of the feeding chuck | zipper of this invention. In this invention, it is a figure which shows the process in which a metal wire is curved. In this invention, it is a figure which shows the process of the other aspect in which a metal wire is curved. It is a figure which shows the process in which a metal wire is bent in this invention. In this invention, it is a figure which shows the process of the other aspect by which a metal wire is bent. In this invention, it is a figure which shows the process in which a metal wire is wound. In this invention, it is a figure which shows the process of the other aspect by which a metal wire is wound.

Explanation of symbols

10 Wire feeder,
18 Feeding chuck,
20 a first shaft drive,
21 1st axis | shaft base part (base part in a Y-axis direction),
22, 32, 42 Servo motor,
23 first shaft lead screw (lead screw extending in the Y-axis direction),
24, 34, 44 Flange mount,
30 second shaft drive device,
31 2nd axis base part (base part in X-axis direction),
33 second shaft lead screw (lead screw extending in the X-axis direction),
40 Third shaft drive device,
51 device substrate,
215,313,412 slide rail,
216, 314, 413 slide block,
217, 315, 414 Fixed brace.

Claims (7)

A wire feeder drive mechanism fixed on an apparatus substrate of a spring manufacturing apparatus,
A wire feeder provided with a feeding box fed with a wire from a wire reel rotated by a winding motor and a feeding chuck rotated by a spindle rotation motor ;
A first shaft driving device having one end connected to the wire feeder to move the wire feeder in a first direction;
In order to move the first axis drive unit in a second direction which is perpendicular to the first direction, one end connected to Ru second axial drive device to the first axis drive device and,
To move the second shaft drive device in the first direction and a third direction perpendicular to the second direction so that the wire feeder can move in three dimensions, And a third shaft driving device having the other end connected to the device substrate and a third shaft driving device connected to the device substrate . The first shaft driving device moves along the vertical direction of the spring manufacturing device, and the second shaft driving device moves along the first horizontal direction of the spring manufacturing device , and the third shaft driving device. The wire feeder driving mechanism according to claim 1, wherein the apparatus moves along a second horizontal direction of the spring manufacturing apparatus . The first shaft driving device includes:
A first shaft base portion provided with a slide rail and a slide block attached on the slide rail;
A fixed brace formed at one end of the first shaft base portion;
A servo motor mounted inside the fixed brace;
A first shaft lead screw, one end of which is inserted into the fixed brace and connected to the shaft of the servo motor, and is provided in parallel with the movable direction of the slide block;
The wire feeder driving mechanism according to claim 1, further comprising a flange mount that is screwed into the first shaft lead screw and is firmly connected to the wire feeder. The second shaft driving device includes:
A second shaft base portion fixed on the apparatus substrate having a slide rail and a slide block mounted on the slide rail;
A fixed brace fixed to one end of the second shaft base;
A servo motor mounted inside the fixed brace;
A second shaft lead screw having one end inserted into the fixed brace, connected to the shaft of the servo motor, and provided in parallel with the movable direction of the slide block;
The wire feeder drive mechanism according to claim 1, further comprising a flange mount screwed into the second shaft lead screw and firmly connected to the first shaft drive device. The third shaft driving device includes:
A third shaft base portion fixed on the apparatus substrate having a slide rail and a slide block mounted on the slide rail;
A fixed brace fixed to one end of the third shaft base;
A servo motor mounted inside the fixed brace;
A third shaft lead screw, one end of which is inserted into the fixed brace, connected to the shaft of the servo motor, and provided parallel to the movable direction of the slide block;
The wire feeder drive mechanism according to claim 1, further comprising a flange mount that is screwed into the third shaft lead screw and is firmly connected to the second shaft drive device. The first axis driving device is to move along a first horizontal direction of the spring manufacturing apparatus, the second axis drive equipment moves along the vertical direction of the spring manufacturing apparatus, said third axis The wire feeder driving mechanism according to claim 1, wherein the driving device moves along a second horizontal direction of the spring manufacturing apparatus . The first shaft driving device moves along a first horizontal direction of the spring manufacturing device, the second shaft driving device moves along a second horizontal direction of the spring manufacturing device, and the third The wire feeder driving device according to claim 1, wherein the shaft driving device moves along a vertical direction of the spring manufacturing device.

Images