JP2000271689A - Tool actuaion mechanism of coil production device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the inconvenience that a wedge pitch tool is moved together in position-adjusting a cutting toll, a mandrel tool, a push out pitch tool when changing a coil diameter to form and to eliminate the interference between a mandrel tool and a coil when coil-forming of a drum shape,etc. SOLUTION: A device, which is arranged with a forming tool to coil a wire, a pitch tool, a cutting tool, a mandrel tool, is provide with a mandrel tool actuation body 6 to move the mandrel tool T3 in the direction orthogonal to a quill axis by a mandrel moving means, a cutting tool actuation body 4 to move the cutting tool T1 to a waiting position and a cutting position by a cutting tool moving means and a tool actuation body moving means 10 to integrally move the cutting tool actuation body and the mandrel tool actuation body along a cutting actuation axis at an appropriate time, a control means controls a tool actuation body moving means so that the waiting positions of the mandrel tool and the cutting tool is positioned to correspond to a coil diameter to coil, further, pertinently controls a pitch tool moving means, the cutting tool moving means and the mandrel tool moving means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool operating mechanism of a coil manufacturing apparatus, and more particularly, to a pitch tool for providing a pitch in a coil manufacturing apparatus such as a coil spring, a cutting tool for cutting a coil, and this cutting tool. And a tool operating mechanism such as a cored tool for cutting a coil in cooperation with the tool.

[0002]

2. Description of the Related Art As a conventional technique, for example, the invention disclosed in Japanese Patent Application Laid-Open No. 10-58075 concerning a sling manufacturing apparatus is known. This is a base (base) 2 which can be moved up and down on a molding table as shown in FIG.
01 and a manual adjustment handle for moving the base 201 up and down via the rack 208 are provided.
1 is a cutting tool 2 movable to a cutting position and a standby position.
02, a core bar 203 fixed at the center, a wedge tool 204 that can move forward and backward (corresponding to a wedge pitch tool of the present invention), and a push tool that can move forward and backward (corresponding to an extrusion pitch tool of the present invention). , A cutting tool 202, a wedge tool 204, and a driving means 205, 206, and 207 for moving a push tool forward and backward.

[0003]

SUMMARY OF THE INVENTION In the present invention,
By adjusting the cutting position by moving the base with a manual adjustment handle to correspond to the coil diameter to be wound,
Since the cutting tool, core bar, wedge tool, push tool, etc. provided on the base are moved together and adjusted while maintaining their relative positions, the standby position of the wedge tool, which should have a predetermined positional relationship with the quill axis, is also required. Be moved. For this purpose, every time the position corresponding to the cutting between the cutting tool and the cored bar is adjusted, the standby position of the wedge tool 204 with respect to the quill axis or the working position of the cam for moving the wedge tool forward and backward must be adjusted. There has been a problem that a wasteful setup time is required, such as the necessity.

Further, since the means for adjusting the position corresponding to the cutting is an adjusting handle which is manually operated, a different-diameter coil having a smaller coil diameter than the cut portion of the end-of-winding coil, such as a drum-shaped coil, is machined. At this time, the coil interferes with the metal core in a processing area where the coil diameter is smaller than the winding end coil, but is moved along the cutting action axis to evacuate the metal core 203 corresponding to the small coil diameter. Can not do. For this reason, there was a problem that the cored bar 203 hindered the coil forming, and it was not possible to easily process the coil having the different diameter.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. It is an object of the present invention to move a metal core tool so as to correspond to the diameter of a coil to be wound, and to provide another method. By maintaining the position related to the tool, unnecessary setup time is not required, the setup can be easily changed between the right-handed coil and the left-handed coil, and the productivity can be improved. An object of the present invention is to provide a tool operating mechanism of a coil manufacturing apparatus that can be easily processed without interference with the coil manufacturing apparatus and can simplify the configuration of the apparatus.

[0006]

In order to achieve the above object, a tool operating mechanism of a coil manufacturing apparatus according to the first aspect of the present invention comprises a quill for guiding a wire and a coil formed by winding the fed wire. Forming tool, a pitch tool for imparting a pitch to the coil, a cutting tool for cutting the terminal end of the coil, and a core metal tool for cutting the terminal end of the coil in cooperation with the cutting tool, in the vicinity of the coil forming space. A tool operating mechanism of a coil manufacturing apparatus provided on a substrate, wherein the core operating tool is provided movably along a cutting action axis orthogonal to a quill axis, and the core metal tool projects from a front surface of the substrate and is detachable. And a cutting tool operating body which is provided so as to be movable with the core metal tool operating body at any time in front of the substrate so as to correspond to a forming coil diameter and to which the cutting tool can be attached and detached, and the cutting tool operation integrated with the cutting tool operating body Body and Tool operating body moving means for controlling movement of the cored tool operating body, and cutting for moving and controlling the cutting tool on the cutting tool operating body between a standby position and a cutting position at which a terminal end of the coil can be cut. Tool moving means, and controlling the tool operating body moving means to position the cutting action position of the cored tool and the cutting tool corresponding to the coil diameter to be formed, and cutting the cutting tool from a standby position And control means for controlling the cutting tool moving means so as to move the cutting tool to a position and cut the terminal end of the coil.

According to the first aspect of the present invention, the cutting tool operating body and the core metal tool operating body are integrally moved as needed together with the cutting tool operating body so that the standby position of the cutting tool and the core metal tool corresponds to the coil diameter to be wound. Since it is made possible, when machining different types of coils having different coil diameters, the relative positions of the cutting tool and the metal core tool can be maintained, and the respective cutting tool standby positions can be positioned. Further, since it is not necessary to change the setup for adjusting the attachment / detachment position between the cutting tool operating body and the cored tool, it is possible to improve the production efficiency.

According to a second aspect of the present invention, there is provided a tool operating mechanism for a coil manufacturing apparatus, wherein the core operating tool is movable between a cutting position and a standby position in parallel with a coil forming axis. .

According to the second aspect of the present invention, the metal core tool can move forward and backward on the metal core tool operating body between the cutting position and the metal core tool standby position in parallel with the coil forming axis. Therefore, when processing a different diameter coil having a smaller coil diameter than the cut portion of the winding end coil, such as a drum-shaped coil, the core metal tool is retracted in a processing area where the coil diameter is smaller than the winding end coil. Thus, it is possible to easily prevent the core metal tool from hindering the coil forming.

[0010] The core metal tool of the invention according to claim 3 is characterized in that:
The core metal tool is moved by the core metal tool moving means provided in the core metal tool operating body in parallel with the coil forming axis, and the control means moves the core metal tool to position the core metal tool between a cutting position and a standby position. The means is controlled.

According to the third aspect of the present invention, the core metal tool moving means is controlled so that the core metal tool can be positioned between the cutting position and the core metal tool standby position. When machining such a coil having a different diameter, the cored bar tool can be advanced to the cutting position only at the cutting time at least after the coil winding is completed.

Further, the pitch tool of the invention according to claim 4 is an extrusion pitch tool, wherein the pitch tool operating member provided on a common base portion with the core metal tool operating member is close to the core metal tool. The extruding pitch tool is provided detachably at a position, and the extruding pitch tool can be moved in parallel with a coil forming axis between a standby position and a pitch applying position at which a pitch can be applied to a coil on the extruding pitch tool operating body. It is.

According to the fourth aspect of the present invention, the extrusion pitch tool has a coil forming axis between an extrusion pitch tool standby position on the extrusion pitch tool operating body and an extrusion pitch application position at which a pitch can be applied to the coil. Since it is possible to move forward and backward in parallel, when processing different kinds of coils having different coil diameters, it can be moved while maintaining the relative position with respect to the cutting tool and the core metal tool, and the extrusion pitch tool This eliminates the necessity of a setup change for adjusting the amount of protrusion, thereby improving production efficiency.

Further, the pushing pitch tool according to the invention of claim 5 is moved forward and backward by pushing pitch tool moving means provided on the pushing pitch tool operating body, and moves the pushing pitch tool between a standby position and a pitch applying position. The extruding pitch tool moving means is controlled by the control means so as to be capable of positioning between them and, if necessary, displacing the pitch applying position during coil forming.

According to the fifth aspect of the present invention, the extrusion pitch tool moving means is controlled so that the extrusion pitch tool can be positioned between the standby position and the extrusion pitch application position. The pitch tool can be advanced to the pitch application position, and a different pitch can be easily applied from the beginning to the end of winding of the coil.

The pitch tool according to the invention of claim 6 is a wedge pitch tool, which is detachably attached to a wedge pitch tool operating body provided on the opposite side of the cutting tool with respect to a quill axis of the substrate. The wedge pitch tool operating body is movable along a cutting action axis between a standby position and a pitch applying position at which a pitch can be applied to the coil on the wedge pitch tool operating body.

According to the sixth aspect of the present invention, the wedge pitch tool advances and retreats along the cutting action axis between the standby position and the wedge pitch application position at which a pitch can be applied to the coil on the wedge pitch tool operating body. Since it is movable, when machining different types of coils having different coil diameters, the relative position with respect to the quill axis is determined regardless of the advance / retreat positioning of the cutting tool operating body and the cored tool operating body. It can be maintained on the wedge-pitch tool operating body, and the setup change for adjusting the position of the wedge-pitch tool becomes unnecessary, and the production efficiency can be improved.

The wedge pitch tool is moved forward and backward by a wedge pitch tool moving means provided on a wedge pitch tool operating body, and the wedge pitch tool is moved between a standby position and a pitch application position. The wedge pitch tool moving means is controlled by the control means such that the wedge pitch tool moving means can be positioned and the pitch applying position can be displaced as needed during coil forming.

According to the seventh aspect of the present invention, the wedge pitch tool moving means is controlled so that the wedge pitch tool can be positioned between the standby position and the pitch application position. The tool can be advanced to the pitch application position, and a different pitch can be easily applied from the beginning to the end of winding of the coil.

The push-pitch tool operating body according to the invention of claim 8 is provided such that the push-pitch tool can be exchanged at any one of upper and lower symmetrical positions with respect to the center axis of the metal core tool. The cutting tool operating body is detachably provided with the cored bar tool operating body and can be fixed to the substrate, and is provided so as to be replaceable with the cutting tool and the wedge pitch tool. The body can be disengaged from the metal core tool operating body at a substantially symmetric position facing the cutting tool operating body across the quill axis, and can be fixed to the substrate, and the wedge pitch tool and the cutting tool are The control means is provided so as to be replaceable, and the cutting tool standby position between the cutting tool attached to the cutting tool operating body or the wedge pitch tool operating body and the wedge pitch tool is a right-handed or left-handed coil. That taken together with the cutting tool operating body so that the coil diameter as the corresponding those to control the tool actuating member moving means so as to position the metal core tool operating member.

According to the eighth aspect of the present invention, the pushing pitch tool can be detachably attached to the pushing pitch tool operating body at a substantially symmetrical position, and the cutting tool or the wedge pitch tool can be detachably attached to the cutting tool operating body. Since the pitch tool operating body is configured to have substantially the same mechanism at a substantially symmetrical position facing the cutting tool operating body across the quill axis, for example, by giving a pitch with a wedge pitch tool, the right-handed coil When processing, the cutting tool operating body with the cutting tool attached is moved forward and backward integrally with the metal core tool operating body, and the wedge pitch tool operating body with the wedge pitch tool attached is fixed to the substrate. ,Also,
When processing a left-handed coil, the wedge pitch tool operating body with the cutting tool attached is moved forward and backward integrally with the cored bar tool operating body, and the cutting tool operating body with the wedge pitch tool attached is attached to the substrate. By fastening, the right-handed and left-handed coil machining can be easily performed without replacing each tool operating body.

Further, when machining a right-handed coil by giving a pitch with an extrusion pitch tool, the cutting tool operating body having the cutting tool attached thereto has the extruded pitch tool mounted on the cutting tool operating body side. The wedge pitch tool operation body is moved forward and backward integrally with the attached cored bar tool operation body, and the wedge pitch tool operation body is fixed to the substrate. Also, when processing the left-handed coil, the wedge pitch tool operation with the cutting tool attached body is extruded pitch tool was wedge pitch tool operating member side is attached a metal core the tool operating member integrally with forward and backward movement, the cutting tool actuation body by fastening to the substrate, exchanging the tool operating member Without this, it is possible to easily perform the right-handed and left-handed coil processing.

In the cutting tool operating body according to the ninth aspect of the present invention, the cutting tool holding member is provided so as to be swingable on a plane parallel to the substrate so that the cutting tool tip trajectory at the time of cutting is an arc. The cutting tool moving means includes a driving means for swinging the cutting tool holding member in synchronization with advancing and retreating of the cutting tool in accordance with a cutting timing.

According to the ninth aspect of the present invention, it is possible to easily perform wire cutting for preventing cutting burrs on the inside of the coil by the swing cut method. Especially in this swing cut type,
The facing positional relationship between the cutting blade tip of the cutting tool and the cutting edge of the core metal tool immediately before the cutting tool swings is important, but as described above, the relative positional relationship between the cutting tool and the core metal tool. And can easily respond to changes in coil diameter.
In addition, since the cracked coil is torn in the tool swinging direction by the cutting tool, the burr does not protrude inward of the coil, so that there is no problem in inserting the shaft.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show the arrangement of a cutting tool operating body, a wedge pitch tool operating body, and the like when a right-handed coil is wound in a coil manufacturing apparatus, and FIGS. A-A
The description will be made based on FIG. 3 showing a cross section taken along the arrow, FIG. 4 showing a cross section taken along the line BB of FIG. 3, and FIG. 5 showing a cross section taken along the line CC of FIG.

First, the outline of the tool operating body will be described. A pair of upper and lower wire feed rollers 2A and 2B are rotatably mounted on an upright support shaft (not shown) on the front surface of the substrate 1 which is vertically set on the base of the coil manufacturing apparatus. The rotation is appropriately performed by a rotation-controlled servomotor. On the front surface of the wire feed rollers 2A and 2B, a quill 3 following the wire guide tube is arranged on the wire feed line.

A cutting tool operating body 4 having a cutting tool T1 in the Y direction which is a cutting action axis orthogonal to the quill axis X right above the quill 3 is arranged. A wedge pitch tool operating body 5 having a wedge pitch tool T2 in a Y direction orthogonal to the quill axis X and facing the cutting tool T1 is disposed immediately below the front surface of the quill 3. And a metal core tool operating body having a metal core tool T3 having a cutting edge on the other side of the cutting tool T1 toward the rear of the substrate 1 in the Z direction orthogonal to the quill axis X direction and the Y direction orthogonal to the X direction. 6 are arranged. An extruded pitch tool operating body 7 having an extruded pitch tool T4 at the tip is arranged back to back with the operating portion of the cored metal tool operating body 6. A tool operating body moving means 10 is provided for moving and positioning the cored metal tool operating body 6 and the extruded pitch tool operating body 7 in the Y direction orthogonal to the quill axis X. Further, a quill-side forming tool operating body 8 having a quill-side forming tool T5 which is arranged in an up-and-down figure on the axis X of the quill 3 and which is close to the quill on the lower side.
However, a coil forming tool operating body 9 having a coil forming tool T6 remote from the quill on the upper side is provided.

Next, the individual tool operating bodies will be described. As shown in the figure, the cutting tool operating body 4 that winds the right-handed coil is movably mounted along the Y-direction guide on the front surface of the substrate 1 on which the slide table 11 stands upright. A servo motor 22 with a speed reducer 21 is attached to the upper end boss of the slide base 11 so as to extend rearward from the notch 1 a of the substrate 1, and a cam shaft 2 is attached to an output shaft 21 a of the speed reducer 21.
3 is keyed. A forward / backward disk cam 26 is fixed to the front end of the cam shaft 23 via a swing cut disk cam 24 and a collar.

At the end of the slide base 11 on the quill 3 side, a bush hole 11 a through which a knock bush described later can be inserted is bored in a direction perpendicular to the substrate 1. The slide base 11 is provided with a hole 11b which is close to the quill side surface of the cutting tool T1 and through which a later-described extrusion pitch tool T4 mounting shaft is inserted. Further, on the front surface of the slide table 11, a rocking table 12 having a guide surface in the Y direction is fastened to an end face of a rocking shaft 13 which is supported on the slide table 11 by a bearing in a direction perpendicular to the substrate 1. It is possible to swing. A slider 14 having a cutting tool T1 removably fastened to the lower end thereof on the Y-direction guide surface of the swing table 12 is movably mounted. On the upper end surface of the slider 14, a cam follower 16 contacting a disk cam 26, and a follower holder 17 pivotally supported by an axis perpendicular to the substrate 1 are provided so as to be position-adjustable, and an adjustment bolt 18 screwed into a step portion of the slider. Is used to adjust the longitudinal position.

The spring hook pins 27 at the stepped portion of the slider 14 and the spring hook pin 2 at the upper end of the slide base 11
The advancing / retreating disk cam 26 and the cam follower 16 are constantly pressed against each other by tension springs 29, 29 stretched between the cam followers 8, 28. Accordingly, the cutting tool T1 is moved back and forth between the cutting position and the standby position via the slider 14 by the rotation of the disk cam 26. Further, a projecting piece 12a attached to the swing table 12.
A cam follower 31 pivotally supported by a support shaft orthogonal to the substrate 1 and in contact with the swing-cut disk cam 24 is provided.

A presser holder 32 is mounted on the front surface of the substrate 1, and a presser 33 capable of moving back and forth in the X direction is inserted into the presser holder 32 so that the tip of the presser holder 32 contacts the protruding piece 12a. The cam follower 31 is moved by the spring 34 inserted between the cam follower 31 and the swing-cut disc cam 2.
4 is always in pressure contact. The pusher 33 is a flange in the pusher holder 32 and defines the forward end when the cam follower 31 is removed.

The disc cam 24 acts on the cam follower 31 immediately before the cutting position of the cutting tool T1 to move down, and swings the swing table 12 about the swing shaft 13 to swing-cut the tip of the cutting tool T1. The timing has been adjusted as follows. Further, the wobble table 12 is fixed to the substrate 1 when the wedge pitch tool T2 is mounted instead of the cutting tool T1 at the time of cutting without swinging the wobble table 12 and at the time of forming the left-handed coil. A holding plate 36 is inserted into the concave portion 1b so as to be position-adjustable in the X direction, and the rocking table 12 can be fixed by bolts.

Next, since the reference configuration of the wedge pitch tool operating body 5 for winding the right-handed coil is the same as that of the cutting tool operating body 4, the same parts are denoted by reference numeral 100 and their description is omitted. The wedge pitch tool operating body 5 is symmetrically disposed opposite to the cutting tool operating body 4 with the quill axis line interposed therebetween, and has a wedge pitch tool T2 compatible with the cutting tool T1 mounted thereon. The holding plate 136 is attached to the swing table 1
12 is adjusted to a forward position to fix it and fastened by bolts. The cam follower 131 that comes into contact with the swing-cut disk cam 124 is removed from the swing table 112 together with the protruding piece 112a. The working bodies of the cutting tool operating body 4 and the wedge pitch tool operating body 5 are turned upside down in the figure when forming the right-handed coil and when forming the left-handed coil.

Next, as shown in FIGS. 3 and 4, the core metal tool operating body 6 extends rearward in the Z direction from the front surface of the quill 3 on the substrate 1, and extends in the Y direction (the vertical direction in FIG. 3). A metal core holder 41 having wide wide sides as mounting surfaces is guided on the substrate 1 so as to be movable in the Y direction. An opening shown in FIG. 4 is formed in the substrate 1 on the front surface of the cored bar holding member 41, and the center is located between the slide base 11 of the cutting tool operating body 4 and the slide base 111 of the wedge pitch tool operating body 5. The cored bar holder 42 in which the insertion hole 42a of the cored bar shaft 43 is drilled in the part Z direction
Bolted to the front end of In addition, the core holder 4
Bush holes 41a and 41b each having a screw hole at the center are formed in the upper and lower positions shown in FIG. Therefore, the bush hole 41a or 4a is inserted from the bush hole 11a or 111a of the slide base 11 or 111.
A bush 37 is inserted into 1b and fastened with a bolt 38 so that the cored bar holder 41 and the cutting tool operating body 4 can be integrated.

The front end of the core shaft 43 is a half-moon-shaped core metal tool T3 having a cutting edge surface serving as a counterpart cutting edge of the cutting tool T1, and is axially movably inserted into the insertion hole 42a. I have. On one of the wide surfaces in the Y direction of the cored bar holding member 41,
A slider 44 is guided so as to be movable in the Z direction, and a front end thereof is connected to a rear end of the core shaft 43 by a pin 46. At the rear end of the slider 44, a follower holder 48 that pivotally supports a cam follower 47 with a pin in the X direction is attached so as to be position-adjustable. The position of the follower holder 48 is adjusted by an adjustment bolt 49 screwed into a step portion of the slider 44. Adjusted.

At the rear end of the core holder 41, a speed reducer 51 is provided.
A servomotor 52 controlled by NC is attached, and a camshaft 54 having a disc cam 53 in contact with a cam follower 47 fixed to an output shaft 51a of the speed reducer 51 is keyed. The disc cam 53 and the cam follower 47 are connected to each other by springs 58, 58 stretched between spring hook pins 56, 56 established on the step portion of the slider 44 and spring hook pins 57, 57 established on the cored bar holder 41. Are always pressed. Therefore, when the metal core tool T3 interferes with the coil during the spring molding, the servomotor 52 is driven and controlled by the NC control to retreat the metal core tool T3 into the metal core holder 42 by the rotation of the disk cam 53. it can.

Next, the extruded pitch tool operating body 7 is shown in FIG.
As shown in FIGS. 4 and 5, the slider 71 is guided movably in the Z direction on the wide back surface of the cored metal holding body 41 in the Y direction (opposite to the cored metal tool operating body 6). At the front end of the slider 71, an extruded pitch tool holder 72 is attached. As shown in FIG. 5, the upper position of the slider 71 sandwiches the quill axis at the time of forming a right-handed coil, and the lower position thereof at the time of forming a left-handed coil. It extruded pitch tool T4
Are provided with split holes 72a and 72b for fixing the holes. Then, the extrusion pitch tool shaft 76 fixed to the split hole 72a is guided by the hole 11b of the slide base 11 and protrudes forward, and the extrusion pitch tool T4 at the tip thereof.
Are oriented toward the center of the formed coil with a length that engages the formed coil as shown in FIG.

At the rear end of the slider 71, a cam follower 7 is provided.
A floor holder 78 pivotally supported by a pin 7 in the X direction is fastened so as to be position-adjustable, and the position is adjusted by an adjustment bolt 79 screwed on a step portion of the slider 71. An NC-controlled servomotor 82 with a speed reducer 81 is provided at a position opposite to the servomotor 52 at the rear of the cored bar holder 41. A cam shaft 84 to which a disk cam 83 is attached is keyed to an output shaft 81a of the speed reducer 81. The cam follower 77 and the disc cam 83
The spring hook pin 86 established at the step portion 1 and the metal core holder 4
The spring 8 stretched between the spring hook pin 87 established in 1 and
8 is always pressed. Accordingly, when the servo motor 82 is driven by the NC control , the pushing pitch tool T4 is moved in the direction of the coil forming axis by the rotation of the disc cam 83, and a predetermined pitch is formed with the movement.

As shown in FIGS. 3 and 5, the metal core holder 41 is mounted on a bracket 60 attached to the rear surface of the
Has an output shaft 61a of a male screw in the direction, and has an input shaft 61 in the Z direction.
b is provided. Its input shaft 6
1b is connected to the output shaft of the servomotor 62 of the NC control. The female screw of the female screw body 63 provided concentrically with the hole 41c penetrating in the Y direction of the cored bar holding body 41 is screwed with the male screw of the output shaft 61a, and the servo motor 62 is driven by NC control. Position control of the cored metal holding body 41, the cored metal tool operating body 6, the cutting tool operating body 4, the extrusion pitch tool operating body 7, or the wedge pitch tool operating body 5 integrally connected by the bush 37 and the bolt 38 in the Y direction. Is done. Accordingly, it is possible to control the movement to the upper position or the lower position with respect to the quill axis in accordance with the cutting position corresponding to the coil diameter or the right-handed coil forming and the left-handed coil forming.

Next, as shown in FIGS. 1 and 2, the forming tool operating body 8 on the side close to the quill at the time of right-hand forming is formed by a slide table 91 having a guide surface on the upper surface below the quill axis. It is provided diagonally below and to the right at approximately 22.5 degrees with respect to the Y direction orthogonal to the Y direction, and is rotatable with a support shaft (not shown). A slider 92 is movably provided on the upper guide surface. A tool holder 93 is attached to the end of the slider 92 on the quill 3 side, and a forming groove portion of the quill-side forming tool T5 is provided detachably in a direction of approximately 45 ° facing the center of the right-handed coil. The slider 92 is driven by a disc cam driven by an NC control servo motor (not shown).
The quill-side forming tool T5 is advanced and retracted via the. Also, with the change in the coil diameter, the forming groove is rotated to a point of 45 degrees facing the coil center.

Next, the forming tool operating body 9 farther from the quill side
Is provided with the forming tool operating body 8 on the side close to the quill symmetrically with respect to an axis parallel to the quill axis, and the basic configuration is the same. I do. In this case, a coil forming tool T6 compatible with the quill-side forming tool T5 is attached, and its forming groove portion is approximately 45 degrees facing the center of the right-handed coil. Slider 19
The movement direction of 2 is approximately 22.5 degrees with respect to the Y direction.

Next, the operation of the present invention for imparting a relatively small pitch with a wedge pitch tool T2 to a right-handed coil having the same diameter without changing the coil diameter will be described.

In FIG. 1, the projecting piece 112 of the swing table 112
is removed, and the cam follower 131 in contact with the disk cam 124 is removed. Then, the holding plate 136 on the wedge pitch tool operating body 5 side is advanced to fix the swing table 112, and the holding plate 36 on the cutting tool operating body 4 side is retracted to set the swing table 1
2 can be swung. Also, a mountain-shaped mountain-shaped cutting tool T1 shown in FIG. 6 is attached in place of the knife-shaped cutting tool T1 in FIG. As for the metal core tool T3, a mountain-shaped metal core tool T3 having a mountain-shaped cutting edge portion shown in FIG. Further, in this molding, the extrusion pitch tool T4 is not acted on, so it is removed or kept at the retracted position.

The wedge pitch tool T2 is a servo motor 122
The disk cam 126 is rotated and moved forward by the drive of, so that the wedge surface is brought into contact with the side surface of the coil to be formed to a position where a predetermined pitch can be formed. NC servo motor 62
Under the control, the output shaft 61a is rotated to move the metal core holder 41 so that the bush hole 11a of the cutting tool operating body 4 matches the bush hole 41a of the metal core holder 41. Then, the bush 37 is inserted, and the both are integrally fixed with the bolt 38. As a result, the relationship between the core tool T3 and the cutting tool T1 does not change and a constant relationship is maintained.

Then, by driving the servo motor 62, the metal core tool T3 is moved to a position inscribed in the coil to be formed, and the servo motor 52 is NC-controlled to perform the disk cam 53.
Is rotated to set the metal core tool T3 at the cutting position of the coil forming space. The quill-side forming tool T5 moves and rotates the slider 92 so that the abutment point of the forming groove is located at a position of approximately 45 degrees facing the center of the coil to be formed. Further, the slider 192 is moved so that the coil forming tool T6 also faces the center of the coil to be formed, and the abutment point of the forming groove of the coil forming tool 6 is located at a position making approximately 90 degrees with the quill-side forming tool T5. .

When the preparation is completed as described above, the wire rods 2A and 2B are rotated to feed the wire W, and the coils are sequentially brought into contact with the respective forming grooves of the quill-side forming tool T5 and the coil forming tool T6 so that the coil is formed. The coil is wound clockwise and an equal diameter coil having a predetermined pitch is formed by the wedge pitch tool T2. When the formed coil reaches a predetermined number of turns, the servomotor 22 is driven to move the slider 14 forward and downward by the disk cam 26 via the cam follower 16. Immediately before the chevron cutting tool T1 comes into contact with the wire W as shown in FIG.
Extruding one outwardly swinging the oscillating table 12 slightly clockwise
Move . As shown in an enlarged manner in FIG.
Move forward while slightly swinging the tip. As a result, as shown in FIG. 6B, the top W1a of the chevron cutting tool T1 is cut into the wire W from the outside of the coil, and the top T3a of the chevron core T3 is cut into the wire W from the inside of the coil to generate a crack. Then, as shown in FIG. 6C, a so-called swing cut is performed. Due to the swing cut, a cutout is formed in which the burr does not protrude inward of the coil.

FIGS. 1 and 2 do not perform swing cut.
When performing a normal cutting operation with the knife-shaped cutting tool T1 and the half-moon-shaped cored tool T3, the protruding piece 12a is removed together with the cam follower 31 of the rocking table 12, and the pressing plate 36 is advanced to move the rocking table 12 to the rocking table 12. It is fixed by hanging. The wire W is sheared by the lowering of the knife-shaped cutting tool T1 and the half-moon cored tool T3.

When the right-handed drum-shaped spring shown in FIG. 7 is formed, as shown in FIG. 8, it is assumed that the cored bar tool T3 is waiting at the cutting position in a region other than the maximum diameter of the coil at both ends. Then, the coil to be formed collides with the side surface, and the coil cannot be wound. Therefore, when the hourglass spring is formed, the disk cam 53 is rotated by the drive of the servomotor 52, the slider 44 is moved backward, and the metal core tool T3 is moved to the metal core holder 4.
Retreat in 2 When the coil having the predetermined number of turns has been formed, the disk cam 53 is rotated by driving the servo motor 52, and the cored tool T3 is advanced to the cutting position. Then, the disk cam 26 is rotated by the drive of the servo motor 22, the cutting tool T1 is lowered, and the wire is cut as described above.

To form a right-handed coil having a relatively large pitch, the wedge pitch tool T2 is removed. Then, the pitch tool shaft 76 of the extruded pitch tool T4 is
Of the extruded pitch tool T4, and the end thereof is inserted into the upper slit hole 72a of the extruded pitch tool holder 72 shown in FIG. Fix it.

The wire W sent out from the quill 3 is brought into contact with the quill side forming tool T5 and the coil forming tool T6 and
At or before the winding is formed, the servo motor 8
2 is driven by the NC control to rotate the disk cam 83, push the pushing pitch tool T4 forward by a predetermined amount via the cam follower 77 and the slider 71, and push the side surface of the coil to give a predetermined amount of pitch. After extruding a certain amount at the beginning of molding, a coil having a constant pitch is formed unless the amount of extrusion is changed. If the amount of extrusion is changed continuously, coils with unequal pitch are formed.

Next, when forming a left-handed coil using the wedge pitch tool T2, the wedge pitch tool T2 is removed from the wedge pitch tool operating body 5 in FIGS. In place of the cutting tool T1, the wedge pitch tool T2 is mounted, and the wedge pitch tool operating body 5 is mounted with the cutting tool T1. The holding plate 136 is loosened and retracted to release the fixing of the swing table 112. Cutting tool operating body 4
And the metal core tool operating body 6 connected by the bush 37 and the bolt 38, the servo motor 62 is driven to move in the Y direction, the wedge pitch tool T2 is lowered and the quill 3
To the front of the The holding plate 36 is advanced to fix the swing table 12 of the cutting tool operating body 4.

Next, the bolt 38 and the bush 37 are removed, and the cutting tool operating body 4 and the cored metal tool operating body 6 are separated. Further lower the cored tool operating body 6 with the servo motor 62 and
1b and the hole 111a of the slide base 111 of the wedge-pitch tool operating body 5 are aligned with each other, and the bush 37 and the bolt 38
And tighten them together. Tip wedge pitch tool operating body 5
And the metal core tool operating body 6 are further lowered to a position where the metal core tool T3 is inscribed in the coil to be formed. Cam Follower 1
Along with 31, the protruding piece 112a is attached. The quill-side forming tool operating body 8 is moved downward so that the forming groove of the forming tool coincides with the abutment point at a position approximately 45 degrees toward the coil center with respect to the coil diameter of the left-handed coil to be formed. Move the previous coil forming tool operating body 9 downward and forward, and rotate it so that it is directed to the center of the forming coil at a position close to the quill 3.
The forming groove of the forming tool is positioned at the abutment point at a position of 5 degrees.

When the preparation is completed in this way, the coil can be formed in the same manner as when forming a right-handed coil. The same applies to the case of swing cut as in the case of right-handed forming. In the case of relatively large pitch forming, the extruded pitch tool T4 is inserted through the pitch tool shaft 76 into the hole 111b of the wedge pitch tool operating body, and inserted into the slit 72b at the lower position of the extruded pitch tool holder 72. The extrusion pitch tool T4 can be similarly formed by fixing it toward the center of the coil to be formed.

When forming the right-handed coil and the left-handed coil, the tool arrangement is the same as that of FIG. 1, and the cutting tool operating body 4 is a wedge pitch tool operating body, and the wedge pitch tool operating body 5 is a cutting tool operating body. The forming tool operating body 8 closer to the quill is a forming tool operating body farther from the quill, and the forming tool operating body 9 farther from the quill is a forming tool operating body closer to the quill.

[0055]

The present invention has the following effects. Claim 1
According to the invention, when machining different kinds of coils having different coil diameters, the cutting tool and the cored metal tool can maintain their relative positions and position the respective cutting tool standby positions. Further, since it is not necessary to change the setup for adjusting the attachment / detachment position between the cutting tool operating body and the cored tool, it is possible to improve the production efficiency.

According to the second aspect of the present invention, when processing a different diameter coil having a coil diameter smaller than the cut portion of the winding end coil, such as a drum-shaped coil, the coil diameter becomes smaller than the winding end coil. By retracting the metal core tool in the processing area, it is possible to easily prevent the metal core tool from hindering the coil forming.

According to the third aspect of the present invention, when machining a coil having a different diameter such as a drum-shaped coil, the cored metal tool can be advanced to the cutting position only at a cutting time at least after the end of coil winding.

[0058] The invention of claim 4, when processing the coils of different coil diameters are different, can be moved while maintaining the relative position with respect to the cutting tool and the metal core tool, extrusion pitch tool This eliminates the necessity of a setup change for adjusting the amount of protrusion, thereby improving production efficiency.

According to a fifth aspect of the present invention, the extruded pitch tool can be advanced to the pitch applying position only at the pitch applying time, and a different pitch is provided from the beginning to the end of winding of the coil. Can be easily done.

Further, according to the present invention, when machining different kinds of coils having different coil diameters, regardless of the advancing / retreating positioning of the cutting tool operating body and the cored metal tool operating body, relative to the quill axis. The position can be maintained on the wedge-pitch tool operating body, and the setup change for adjusting the position of the wedge-pitch tool is not required, and the production efficiency can be improved.

Further, according to the present invention, the wedge pitch tool can be advanced to the pitch application position only at the time of applying the pitch, and a different pitch is provided from the beginning to the end of winding of the coil. Can be easily done.

According to the invention of claim 8, when the right-handed coil is machined by providing a pitch with a wedge pitch tool, the cutting tool operating body having the cutting tool attached thereto is a metal core tool operating. The wedge-pitch tool with the wedge-pitch tool attached and fixed to the substrate is moved forward and backward integrally with the body, and when machining a left-handed coil, the wedge-pitch tool with the cutting tool attached The operating body is moved forward and backward integrally with the metal core tool operating body, and the cutting tool operating body with the wedge pitch tool attached is fixed to the substrate, so that the clockwise winding can be performed without replacing each tool operating body. Easy coil processing with left-handed winding.

Further, when machining the right-handed coil by giving a pitch with an extrusion pitch tool, the cutting tool operating body having the cutting tool attached thereto is mounted on the cutting tool operating body side. The wedge pitch tool operation body is moved forward and backward integrally with the attached cored bar tool operation body, and the wedge pitch tool operation body is fixed to the substrate. Also, when processing the left-handed coil, the wedge pitch tool operation with the cutting tool attached body is extruded pitch tool was wedge pitch tool operating member side is attached a metal core the tool operating member integrally with forward and backward movement, the cutting tool actuation body by fastening to the substrate, exchanging the tool operating member The coil processing of right-handed winding and left-handed winding can be easily performed without performing.

Further, according to the ninth aspect of the present invention, it is possible to easily cut a wire rod by a swing cut type to prevent cutting burrs on the inside of the coil. In particular, in this swing cut type, the facing positional relationship between the tip of the cutting tool and the tip of the core metal tool immediately before the cutting tool swings is important. The relative positional relationship with the metal tool can be maintained to easily respond to changes in coil diameter. In addition, since the cracked coil is torn in the tool swinging direction by the cutting tool, the burr does not protrude inward of the coil, so that there is no problem in inserting the shaft.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the arrangement of a cutting tool operating body, a wedge pitch tool operating body, a quill side forming tool, a coil forming tool, and the like when winding a right-handed coil according to a tool operating mechanism of a coil manufacturing apparatus. It is the top view seen from the front.

FIG. 2 is an explanatory diagram showing an enlarged view of a main part of FIG. 1;

FIG. 3 is a view showing a cross section taken along the line AA of FIG. 1;

FIG. 4 is a view showing a cross section taken along line BB of FIG. 3;

FIG. 5 is a view showing a cross section taken along the line CC of FIG. 3;

FIG. 6 is an enlarged explanatory view of a swing cut, in which a is a diagram showing a cutting start position of the cutting tool, b is a diagram in which the cutting tool swings and bites the top, and c is a crack in the wire rod when the cutting tool advances. FIG.

FIG. 7 is a diagram showing a drum-shaped coil spring as an example of a formed coil spring.

FIGS. 8A and 8B are explanatory views showing interference between a coil and a metal core tool which are formed by reducing the diameter at the time of forming a drum-shaped spring, wherein a is a front view of two turns and b is a cross-sectional view thereof.

FIG. 9 is a perspective view of a prior art tool assembly.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 3 Quill 4 Cutting tool operating body 5 Wedge pitch tool operating body 6 Core metal tool operating body 7 Extrusion pitch tool operating body 8 Forming tool operating body nearer to quill 9 Forming tool operating body farther from quill 11, 111 Slide table 12,112 Swing table 13,113 Support shaft 14,114,44,71 Slider 24,26,124,126,53,83 Disc cam 16,116,47,77 Cam follower 22,122,62,52 , 82 Servo motor T1 Cutting tool T2 Wedge pitch tool T3 Core tool T4 Extrusion pitch tool T5 Quill side forming tool T6 Coil forming tool

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Eiji Obayashi 1 5050 Nitta-dong, Asamae-machi, Owariasahi-shi, Aichi F-term in Asahi Seiki Kogyo Co., Ltd. 4E070 AB09 BC04 BC12 BC23 BF03

Claims (9)

[Claims] 1. A quill for guiding a wire, a forming tool for winding a fed wire to form a coil, a pitch tool for giving a pitch to the coil, a cutting tool for cutting a terminal end of the coil, A tool operating mechanism of a coil manufacturing device that has a core metal tool that cuts the end of the coil in cooperation with a cutting tool on a substrate near the coil forming space, and is movable along a cutting action axis orthogonal to the quill axis. A core metal tool operating body which is provided at the front side of the substrate and which is detachable by projecting from the front surface of the substrate, and which is movable with the core metal tool operating body at any time integrally with the core metal tool operating body so as to correspond to a forming coil diameter. A cutting tool operating body provided and detachable with the cutting tool, tool operating body moving means for controlling movement of the cored bar tool operating body together with the integrated cutting tool operating body, and cutting on the cutting tool operating body Engineering Cutting tool moving means for controlling the movement of the tool between a standby position and a cutting position at which the terminal end of the coil can be cut, and a cutting action position between the core metal tool and the cutting tool corresponding to a coil diameter to be formed. Control means for controlling the tool operating body moving means to position the cutting tool from the standby position to the cutting position and controlling the cutting tool moving means to cut the terminal end of the coil. A tool operating mechanism for a coil manufacturing apparatus, comprising: 2. The core metal tool according to claim 1, wherein the core metal tool operating member is movable between a cutting position and a standby position in parallel with a coil forming axis. Tool operating mechanism of coil manufacturing equipment. 3. The core metal tool is provided on the core metal tool operating body and moved in parallel with the coil forming axis by a metal core tool moving means, and positions the metal core tool between a cutting position and a standby position. 3. A tool operating mechanism for a coil manufacturing apparatus according to claim 1, wherein said control means controls said core metal tool moving means as much as possible. 4. The pitch tool is an extrusion pitch tool, and is provided on an extrusion pitch tool operating body provided on a common base portion with the core metal tool operating body so as to be detachable at a position near the core metal tool. The extruded pitch tool on the extruded pitch tool operating body is movable in parallel with a coil forming axis between a standby position and a pitch applying position at which a pitch can be applied to the coil. 1
The tool operating mechanism of the coil manufacturing apparatus according to any one of claims 1 to 3. 5. The extruded pitch tool is moved forward and backward by an extruded pitch tool moving means provided on the extruded pitch tool operating body, and the extruded pitch tool can be positioned between a standby position and a pitch applying position.
The tool operation of the coil manufacturing apparatus according to claim 4, wherein the control means controls the extruded pitch tool moving means so that the pitch applying position can be displaced during coil forming as needed. mechanism. 6. The wedge pitch tool, wherein the pitch tool is a wedge pitch tool, and is detachably provided on a wedge pitch tool operating body provided on the opposite side of the cutting tool with respect to the quill axis of the substrate. The wedge pitch tool operating body is movable along the cutting action axis between a standby position and a pitch application position at which a pitch can be applied to the coil. 4. The tool operating mechanism of the coil manufacturing device according to 1. 7. The wedge pitch tool is moved forward and backward by wedge pitch tool moving means provided on a wedge pitch tool operating body, and the wedge pitch tool can be positioned between a standby position and a pitch application position, and 7. A tool operating mechanism for a coil manufacturing apparatus according to claim 6, wherein said wedge pitch tool moving means is controlled by said control means so that a pitch applying position can be displaced during coil forming as required. . 8. The extruded pitch tool operating body is provided so that the extruded pitch tool can be replaced at any one of upper and lower substantially symmetrical positions with respect to a center axis of the metal core tool. Is detachable with the cored bar tool operating body, and can be fixed to the substrate, is provided so as to be replaceable with the cutting tool and the wedge pitch tool, the wedge pitch tool operating body, the quill axis line At a substantially symmetrical position opposed to the cutting tool operating body with being sandwiched, the core metal tool operating body can be engaged and disengaged, and can be fixed to the substrate, and the wedge pitch tool and the cutting tool are replaceably provided. The control means is such that a cutting tool standby position between the cutting tool and the wedge pitch tool attached to the cutting tool operating body or the wedge pitch tool operating body corresponds to a coil diameter of a right-handed or left-handed coil to be formed. The tool operating means moving means is controlled to position the cored tool operating body together with the cutting tool operating body.
The tool operating mechanism of the coil manufacturing apparatus according to any one of claims 1 to 7. 9. The cutting tool operating member is provided with a cutting tool holding member so as to be swingable on a plane parallel to the substrate so that the cutting tool tip trajectory at the time of cutting is an arc. The tool operating mechanism of the coil manufacturing apparatus according to claim 1, further comprising a driving unit configured to swing the cutting tool holding member in synchronization with the cutting timing in association with the forward / backward movement of the cutting tool.