JPH0698424B2 - Method and apparatus for manufacturing rotating body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICABILITY The present invention rotates a blank about a longitudinal axis,
A rotating body in which a pressure exceeding the yield point of the blank is partially applied to the blank, and a recessed portion or groove along at least one circumferential direction is provided, and an axial width of the groove decreases toward a valley bottom. And a manufacturing apparatus used for this method.

[Prior Art and Problems Thereof] A conventional method of manufacturing a rotating body as described above is one in which a rib having a predetermined shape is pressed against the blank while the blank is rotated, and the width of the rib is forward. The height increases from the minimum value to the maximum value when viewed from the direction of supply to. That is, for example, when forming a V-shaped groove, the conventional method uses a deformed rib formed into a predetermined shape whose tip is pressed against a rotating blank, and the width and height of this rib are forward. It increases according to the feed direction.

In such a conventional method, the tip of the deformed rib in the blank hardens the blank, and the hardened portion has to be further deformed, so that an extremely large pressure is required, and the blank is required. Has the disadvantage that it is subject to large loads and is therefore prone to cracking.

The present invention aims to provide a method as described above which overcomes the above-mentioned drawbacks, by which further deformation of already largely deformed parts is prevented.

[Means, Actions and Effects for Solving Problems] According to the present invention, the width on which the pressure acts is from the width corresponding to the groove formed on the peripheral surface of the blank to the width corresponding to the bottom of this groove. , The depth of the groove decreases as the depth of the deeper pressing trace increases, and the width of the deeper pressing trace decreases to form the inclined surface of the groove.

As a result, it is possible to prevent the blank from being hardened and compacted to the maximum extent by further deforming only the portion having a small amount of deformation. Further, the power required for deforming and molding the blank by such a method can be small. When a screw is formed by the method of the present invention, which is one of the features of the present invention, the outer diameter of the blank forming the thread groove can be equal to the diameter of the screw. The blank material extruded by this thread-forming action is displaced axially, so that the finished threaded pin or bolt is longer than the initial blank length.

There are advantages when forming threads, especially trapezoidal threads.
That is, if a blank with the same diameter as the thread diameter is used, the extruded blank material will not stack on the sides of this thread to form a complete thread or platform, and this stacking may sometimes Although it is a cause of overload and crack generation on the peripheral surface of the mountain, in the method of the present invention, the blank material only flows in the axial direction, whereby the screw thread is formed only by a solid member,
There is no cracking or formation of holes covered with blank material displaced from the outside.

Further, according to the present invention, there is provided a manufacturing apparatus used for the above-described method of the present invention.

That is, according to the present invention, there is provided an apparatus for manufacturing the rotating body, which comprises at least one roller that works together with the reaction surface member, and the roller moves with respect to the reaction surface member. There are one or more profiled ribs of reduced width and increased height with respect to the direction of movement of the. Thus, when forming a recess or groove in the peripheral portion, the blank is first formed with the maximum width portion of the groove, and as the process progresses, the width of the imprint is gradually reduced and the depth is gradually increased.

Further, when two rollers are provided, these ribs are rotationally driven in mutually opposite directions, and at least one of these ribs is provided with a deformed rib rising from the surface portion, and between these rollers. Is provided with a gap at the time of rotation, the width of this rib decreases in the direction of rotation of the roller, and the height gradually increases. The device first exerts pressure on the blank at the widest part of the groove to be formed, which width decreases as the groove is formed in the blank. According to a further feature of the invention, profiled ribs are provided both on the drivable central roller and on the reaction surface member which is divided into segments and cooperates with this roller, the ribs being arranged in the direction of movement of one another in relation to each other. Cross.

These features allow the reaction surface member to be moved a large distance or a small distance with respect to the central roller, if desired, without creating a varying rotation or working gap along the arcuate length. This is because the ribs that intersect each other cooperate along the generatrix of the central roller and the reaction surface member, which passes through the intersection of the ribs and thus exerts the necessary pressure on the blank.

In this connection, each segment of the reaction surface member is preferably arranged on a respective carriage which is movably guided in a radial direction with respect to the central roller, and each segment is to be individually moved by the control device. Is preferred.
In this case, not only the rib wear, but also the dimensions of the blank and the properties of the material of this blank can be taken into account.

Further, the carriage control drive unit is coupled to the measuring unit which indicates the carriage according to the measured value of the product after the completion of molding, thereby automatically adjusting the reaction surface member. Therefore, an arbitrary sample is taken out of the series of finished products discharged from this manufacturing device, measured by a measuring device and compared with a predetermined tolerance range, and each carriage carrying a reaction surface member is adjusted and completed. Form the product to the median of the tolerance range.

One of the ribs intersecting each other can be arranged so as to be completely perpendicular to the axis of the central roller,
However, in this case, the central roller and the reaction surface member need to have a component in the axial direction of the roller in addition to the relative rotational movement to perform the relative movement.

In order to prevent more movement, in this case it can be controlled in any way, and for the sake of a simpler construction, according to another feature of the invention, the central rollers and The ribs of the reaction surface member are provided so as to be inclined with respect to the axis of the central roller. This arrangement ensures that the above ribs always cross each other during rotation of the central rib, with the exception that the ribs in this feed section and discharge section, except for the feed section and discharge section for feeding in and discharging the blank Do not touch.

According to a further feature of the invention, the central roller is provided with a blank by means of a transmission device in order to ensure a reliable and optimal transfer and guidance of the blank between the central roller and the reaction surface member during processing of the blank. Is operatively connected to at least one, preferably at least two, rotating members which are axially spaced from one another in the central roller and A thrust member in which a push rod or thrust member is movably held in the longitudinal direction and is engaged by a sliding member or the like with a control groove on a peripheral surface arranged in a stationary member so as to be guided in two different rotating members. Are axially aligned with each other. Due to these characteristics, each blank is gripped and transferred between the thrust member and the cam, that is, between each pair of thrust members axially aligned with each other. In this arrangement, a control groove is additionally provided, except for the blank and finished product supply and discharge parts, which control groove is in the path of movement of the intersection of the roller and the reaction surface rib during rotation of the central roller. The control grooves associated with the rotary members, which extend substantially parallel and are guided in each rotary member, run parallel to the above-mentioned feed and discharge parts, thereby optimally guiding the blank, feeding and completing the blank. The rotating body can be easily discharged.

When manufacturing a rotating body having a groove formed in the peripheral portion, it may be desirable to further consolidate or harden the wall surface portion of the groove. In this case, the control groove is inclined with respect to an imaginary line formed by the moving path at the intersection of the central roller and each rib of the reaction surface. With this arrangement, each rib presses the blank not only radially but also axially against the wall of the groove formed in the blank.

In a preferred embodiment according to yet another aspect of the present invention, at least the opposing areas of the thrust member are rotated about the longitudinal axis of the thrust member, preferably the ends of one thrust member being coaxial. The spring member presses the thrust member aligned with. This prevents friction between the blank and the end surface of the thrust member. By elastically supporting one end of one thrust member, a groove is formed in the blank to eliminate excessive pressure when the blank extends in the axial direction. Furthermore, this arrangement can accommodate different blank sizes. The end of the thrust member can be formed in the insert.

According to a further feature of the invention, the transfer device is provided with a ring gear or spur gear which is non-rotatably connected to the central roller, and a gear transmission is arranged in parallel with the thrust member for each of these gears. A support shaft is drivably coupled to the support shaft and is retained within a pressure member that guides the thrust member or a rotating member that is non-rotatably coupled to the thrust member.

This drives the blanks during operation, while the gear transmissions mesh appropriately to synchronize the velocities of the central roller and the blank periphery.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[Embodiment] FIG. 1A schematically shows deformed ribs 7 and 8. These ribs are provided on a reaction surface member 1, and the reaction surface member 1 includes five segments 2, 3, It is divided into 4, 5, and 6. The ribs 7 form the steps or shoulders 10 of the finished product 9V formed from the blank 9. On the other hand, the rib 8 forms the groove 11 of this finished product, and the maximum width portion and the minimum height portion of this rib are formed at the start portion of the reaction surface member or the introduction portion of the blank 9 to be processed. From the tip of the rib 8 to the end of the edge of the segment 6, i.e. the trailing edge as seen in the direction of rotation of the central roller, which will be described in detail below, the width of this rib 8 becomes narrower and ends in the same shape as the opposing groove 10. .

This central roller 12 is shown in FIG. 1B.
12 moves in the internal space surrounded by the reaction surface member segments 2 to 6. In FIG. 1B, the roller 12 is not shown with the reaction surface member 1 for clarity of illustration. This roller 12 is attached to the segments 2 to 6 of the reaction surface member 1,
The starting points of the ribs 7 ', 8'are arranged in radial alignment with the starting points of the ribs 7, 8 of the same height.

The change in the cross-sectional shape of the rib 8 between the segments or between the boundaries of the segments or the segments adjacent thereto and the boundaries of the adjacent segments is clearly visible in the shape change of the blank 9 forming the final product. Therefore, the intermediate product 9I corresponds to the deformation of the blank 9 at the cross section between the segments 2 and 3, that is, the boundary line x1. This shows a sectional shape corresponding to the sectional shape of each rib. Similarly, the intermediate product 9II corresponds to the blank deformed state on the boundary line x2, the intermediate product 9III corresponds to the blank deformed state on the boundary line x3, and the intermediate product 9IV corresponds to the deformed state on the boundary line x4. At the boundary line x5, the blank is formed into a finished product 9V having a predetermined rotating body shape.

As is apparent from each of the intermediate products 9I, 9II, 9III, 9IV, 9V, the ribs 8 and 8 '(Fig. 1B) gradually decrease from the starting point with respect to the width of the maximum height portion in the section, while , The ribs 7, 7'increase in width.

Further, as shown in FIG. 1A, the blank 9 was
Held between a number of push rods or thrust members 14, 14 ', the thrust members being spaced apart from each other at the inlet and outlet, the inlet and outlet being between boundaries x and x5. It is in. Therefore, the introduced blank 9 is acted on in a separate plane and is discharged as a final product.

FIG. 1B shows diagrammatically the central roller 12, which cooperates with the reaction surface member 1. The roller 12 is provided with two profiled ribs 7 ', 8'corresponding to the ribs 7, 8, each of these ribs 7', 8'in the opposite direction to the ribs 7, 8. Inclined and therefore the central roller 12
Are arranged between the segments 2 to 6 and when they are rotated in the direction indicated by the arrow 12, the ribs 7, 7'and 8, 8 'respectively intersect.

FIG. 2 shows the state in which the ribs 7,8,7 ', 8' are expanded, and the ribs 7 ', 8' move beyond the ribs 7,8 in the direction indicated by the arrow 13 and, as a result, The intersection of the ribs slopes down to the right. In this arrangement, the blank 9 is made substantially by two thrust members 14,14 'along a line corresponding to the locus of the intersection of the moving ribs 8,8' of the ribs 7,8 with respect to the ribs 7 ', 8'. Be guided.

The thrust members 14, 14 'extend parallel to the ribs 8, 8'and are guided between the boundaries x to x5 of the segments of the reaction surface member 1 along an imaginary base line 15, 15' shown in dotted lines. This virtual line
15, 15 'are slightly inclined with respect to the line corresponding to the locus of the intersection, which compensates for the axial extension of the blank 9 due to the formation of the groove 11.

The blank 9 is preferably not moved along two separate passages, but along a dotted phantom line 15 which represents the passage of the blank for the ribs 7,8 and 7 ', 8' respectively. . In fact, as will be explained in more detail below, the blank is guided by a groove provided in the stationary member, the shape of which substantially corresponds to the shape of the rib 8.

Considering the above arrangement from the center roller 12, the blank passages are parallel to the ribs 8 '.

As is apparent from FIGS. 1B and 2, ribs 7 ', 8'
The cross-sectional shape of changes like the cross-sectional shape of ribs 7 ', 8',
That is, the height of the rib 8'increases from the beginning at the end to the end, and the width decreases to the portion at the maximum height.

FIG. 3 shows diagrammatically a vertical cross-sectional view of the device used in the method according to the invention, in particular the mounting and carrying device and the mounting part are shown in a simplified manner. Furthermore, an integrated structure made up of a plurality of members is described as one member for ease of manufacturing and assembling.

The drive motor 20 drives a shaft 23 by means of a clutch 21, one of which is connected to a flywheel 22.
The shaft 23 is supported in a housing 26 by means of rolling bearings 24, 25 in a conventional manner and is non-rotatably connected to a bevel gear 27 and a chain wheel 29.

The bevel gear 27 further meshes with a bevel gear 28, which is non-rotatably connected to a vertically arranged main shaft 30. This spindle 30 has two tapered roller bearings 31, 32
The carrier cylinder 33 coupled to the housing 26 by
Retained within.

The first guide member 34 is mounted in the cylinder 33 and is firmly connected thereto. Further, a needle roller bearing 35 is arranged in the cylinder 33, and the bearing 35 is fixed at a predetermined position in the axial direction by a guide member 34 and a support flange 35. The support flange 35 has a rotating member provided with a chain ring 38. Mount the 37 rotatably. This rotating member 37 or chain ring 38
Are connected by two chains and a chain wheel 40, which is non-rotatably connected to the output shaft 41 of the transmission device 42. The transmission device 42 is driven by two chains 44, a chain wheel 43, a shaft 23 and a chain wheel 29 connected to the shaft 23, and a bracket
It is held in the housing 26 'by 46.

The rotating member 37 is further coupled to the rotating member 47 by a pin 45,
It is mounted on the main shaft 30 by means of rolling bearings 48. This 2
The two rotary members 37 and 47 are joined together by a slotted guide sleeve 49 in which the thrust member 14 'or its guide end 50 is axially slidably guided. The guide end 50 engages a roller 51 rotatably mounted in the control groove of the guide member 43.

The thrust member 14 'penetrates the rotating member and is guided into the bush 53. Further, an oil avoiding ring 54 is attached to the rotating member 47, and this ring 54 has a function of flowing the oil used for lubrication to an oil tank (not shown) arranged annularly.

The rotating member 47 is further connected to the rotating member 56 by a column 55. Like the rotating member 47, this rotating member 56 is
A vetail guide is provided with an extension extending in a tangential direction, and the extension is shown in FIGS. 8 to 10 described in detail below.
It houses a sliding member that forms part of the transfer device shown. Reference numerals are not shown in FIG.

The body part 57 of the chuck is provided on the main shaft 30 so as not to rotate,
The roller 12 having the ribs 7'and 8'formed thereon is mounted on the body portion 57 and is non-rotatably held by the key and the key groove. A ring gear or a spur gear 58 is screwed to the roller 12, and the driving force of the transfer device is transmitted from the spur gear 58, which will be described in detail below with reference to FIGS. 8 and 10. To do.

The sleeve 59 is attached to the step portion of the main shaft 30 and is non-rotatably connected by a key and a key groove. A rotary member 62 is mounted on the sleeve 59 by a rolling bearing 60, and the rotary member 62 is screwed to the internal gear ring gear 61. As shown in FIG. 5, the ring gear 61 is an intermediate gear 63.
, The gear 63 meshes with the gear 64, and the gear 64 simply reverses the direction of rotation.
Like the intermediate gear 63, is rotatably mounted in a ring 66 arranged inside a guide member 65, which is fixed to the housing. The gear 64 meshes with a ring gear arranged on the sleeve 59, which is a gear.
The ring gear 61 that supports the guide member 65 is driven by 63, 64 and the rolling bearing 60 '.

The rotary member 62 is connected to the ring 69 by a pin 67 and a sleeve 68, in which the bush 53 is mounted, so that the thrust member 14 is rotatable and axial in this push, as in the rotary member 62. You will be guided to move to.

The guide member 65 is formed of two members, and the rolling bearing 6
The spindle 30 is supported by 9 '. Further, the guide groove 65 is provided with a control groove 70, in which the rotatable roller 51 mounted on each guide end 71 of the thrust member 14 is enlarged as shown in FIG. Engage. As shown in FIG. 6, the pin 72 for mounting the roller 51 engages in the peripheral groove 73 of the thrust member 14 at its extension, so that the thrust member 14 is not rotatable in the guide end 71. However, it is mounted so that it cannot rotate in the axial direction.

The control groove 70 extends parallel to the control groove 52 of the guide member 34 over almost the entire area of the peripheral portion of the guide member 65. Only in the areas of the supply and the discharge described with reference to FIG. 1A does the above parallelism occur, in which the two control grooves are spaced apart and move in opposite directions.

The guide member 65 is connected to the support arm 74 by a flanged member 74, in which the main shaft 30 is supported by plain bearings. The support arm 75 is supported by a carrier post 76 fixed to the housing 26 '. A spindle 77 is arranged on the support column 76. The spindle 77 is supported on the inner surface of the support column 76, and is supported by the upper part of a centering ring 78 on a cylindrical inner hole 79 of the support arm 75. The support arm 75 is gripped by the column 76 by the nut 80.

After loosening and removing the nut 80 to separate the joint between the flanged member 74 and the support arm 75, the support arm 75
Can be lifted and rotated, which allows the device to be removed, for example to replace the roller 12 with another rib-shaped object to form a differently shaped rotor.

Five further carriages are arranged in the housing, each carriage carrying a respective segment 2 to 6 of the cooperating reaction surface member. The carriages 81 are guided in housings 82, in each of which is arranged a threaded spindle 84 supported in a bearing arrangement consisting of thrust and radial roller bearings. This spindle 84 is driven by a pulse motor 86 via a transmission device 85 and passes through two nuts 87 which are tensioned together and compensate for spindle play, which nuts 87 are guided in a housing 82 by a carriage or slide. Coupled to the moving member 88,
The sliding member 88 has a wire strain gauge mounted on the thin wall portion 89.

A height-adjustable support device is mounted on the end of the slide part, which support device is integrally provided with an adjusting spindle, which is generally designated by 90. Ribs on the support device 90
A segment of cooperating reaction surface member 1 provided with 7, 8 is mounted.

A peripheral cam 92 is provided on the carriage 81, and a column 76 is provided by the mounting arm 91. The cam 92 controls the transfer device, as described below with reference to FIGS. 8 and 9.

As best shown in FIG. 4, the blank feeder is indicated at 93 and is driven by the transmission 42 by a chain wheel and chain 95.

Step-up ratio of transmission 42 and ring gear 6
1, chain wheel 40, 38, chain wheel similar to that formed by sleeve 59 ring gear and gear 63, 64
0 and 38 are half the speed of the roller peripheral surface provided with ribs by the rotating member driven by these transmission means in the moving path formed by the thrust members 14 and 14 'mounted in the rotating member. Set to move.

In the carriage 81 shown in cross section in FIG. 4, the reaction surface member 1
The vibration generating device 91 is screwed to the segment of FIG. 1 to move the reaction surface member by high-speed vibration, thereby facilitating the deformation of the blank 9 guided between the segment of the reaction surface member and the roller 12 by the transfer device. To do. The transfer device is not shown in FIG. 4 for the sake of clarity.

The punch 101, of which only two are shown in the figure, is guided in a star wheel 99, which rotates in the plane in which the star wheel 98 is located. The punch 101 projects beyond the upper surface of the star wheel 99 and slides against the cam 102. The cam 102 is stationary and pushes the blank engaged or gripped by the cam 102 into the passage of the thrust member 14, 14 '.

A magnet 103 is arranged in a horizontal plane different from that of the supply device, and the magnet 103 sends the finished products further into the groove 104 after the finished products 9V are taken out from the thrust members 14 and 14 '.

A switch 105 is provided in the groove 014, and the switch 105 allows the completed rotating body to be selectively discharged from the groove by the deflection plate 106, which is provided by the piston and cylinder device 107. It is inserted in the groove. The rotating body thus discharged from the groove is then moved to the measuring device 109 via the groove 108, in which the rotating body is pushed by the piston into the measuring position, in which the piston and cylinder device The contact portion 111 is contacted by 112. This measurement is carried out by an optical measuring device 113, which forms the measured value in the form of an electrical signal,
This signal is sent to a control device (not shown) such as a computer for processing the measurement data. When the measured value obtained here is in the basement level within the allowable value of the predetermined intersection range, the control device sends a control signal by the pulse motor of the carriage 81 and adjusts it appropriately. As a result, the allowable error range can be made extremely narrow.

After the measurement of the rotating body is completed, the contact member 111 provided with the piston and cylinder devices 112 and 110 presses the rotating body that has completed this measurement into the opening 114, and is exposed to the outside through the opening 114 and the groove 115. Extrude.

FIG. 7 is an enlarged view of the ends of the thrust members 14, 14 ', which ends are rotatable about the longitudinal axis of the thrust members. An insert portion 116 is screwed into an end portion of the thrust member 14, and a pin 117 holds a tip 117 in the insert portion.
It passes through the lateral inner hole 118 of 117 and further penetrates the wall surface of the insertion part 116. The tip 117 is held in the insertion portion 116 so as to be movable in the axial direction, and is pressed by a spring 146. Lateral bore 118
Is larger than the diameter of the tip, the tip 117 can move slightly in the axial direction with respect to the insertion portion 116 or the casing. This makes it possible to cope with blanks 9 having slightly different dimensions, and while the blanks 9 are deformed by the ribs 7, 8 and 7 ', 8'of the reaction surface member 1 and the roller 12, respectively. It is possible to accommodate the extension of the blank in the longitudinal direction.

The sleeve 121 is screwed into the threaded portion 120 of the thrust member 14 '. The sliding bush 122 is fitted into the sleeve 122 and fixed together with the insertion member 123. The tip 124 is rotatably mounted in the bush 122, and the brim of the tip has a sliding ring 125.
The sliding ring 125 is supported by the shoulder portion of the sleeve 121.

By disposing the rotatable tip 124 of the thrust member 12 'and mounting the thrust member 14 rotatably within the guide end 71, friction between the thrust members 14, 14' and the blank 9 held therebetween is reduced. Disappear.

Next, the transfer device will be described in detail with reference to FIG. 8, FIG. 9 and FIG.

The rotating members 47 and 56 are provided with dovetails 126 extending tangentially and projecting in the radial direction so as to divide the rotating members. Two pivot members 127 are movably arranged at various parts of the dovetail 126. Thrust member 14,14 '
The support roller 128 is rotatably mounted in the inner hole 129 of the sliding member 127. The sliding member 127 attached to each of the rotating members 47, 56 is integrally connected by a pressing member 130, and the pressing member 130 is screwed to the sliding member 127.

The pressing members 130 are each controlled by the cam shaft 131,
The cylindrical protrusion 132 of the cam shaft extends between the rotating members,
The rotary members 47, 56 are rotatably mounted in the inner holes 133 arranged in the radial protrusions. The upper cylindrical lock protrusion 132 is non-rotatably gripped within each control lever 134 and engages an inner bore 135 forming a slot 136. The control lever 134 slides along the stationary cam 92 when the rotating members 47 and 56 rotate.

Over the extending arcuate area of the reaction surface member 1, the cam is formed approximately as an edge lock. In the area of the supply of the blank 9 and the discharge of the finished rotor, the cam 92 has a recess 137, by means of which the control lever can be pivoted.

The support roller 128 has a portion having a knurl, and the portion having the knurl contacts the blank 9 to move the blank. The support roller is driven by a gear 138 which is non-rotatably attached to the support roller. This gear 138 meshes with the intermediate gear 139,
9 are rotatably mounted in a holder 140 together with a gear 138, and an intermediate gear 139 meshes with a gear 58 connected to a roller 12 having ribs 7'and 8 '. In this arrangement, due to the difference in speed between the gear 58 and the holder 140 drivably coupled to the rotating members 47, 56 provided on the support shaft 128, the intermediate gear 139 is swung, and thus the support shaft Is driven.

As is apparent from FIGS. 9 and 10, each associated holder 140 is joined together by a pin 141 and a spring 142.
Are pressed against each other.

As long as the control lever 134 slides along the arc of the cam 94, the control lever is deflected and the camshaft 131 non-rotatably connected to this control lever has a member 130 and a thrust member 14,1.
4'The sliding member 1 for the blank 9 thus deformed
The support shaft 128 held together with 27 is pressed. Control lever 1
When one of the 34 fits into the recess of the cam, the control lever is deflected, the spring 142 separates the support shaft 128 from the thrust member, and the pivoting of the cam shaft 131 also pivots the control lever 134, causing the spring 142 to move. Is held in contact with the cam 92.

As is clear from FIG. 10, the intermediate gear 39 rotates in different horizontal planes and is rotatably held by the bearing at one end of each holder 140. The gear ratio of the transmission devices 58, 1391, 138 and the diameter of the support shaft 128, that is, the portion where the notch is formed are determined by the speed of the peripheral portion of the portion where the notch is formed of the support shaft 128, that is, the peripheral portion of the blank 9 that is in contact therewith. Is set to be equal to the speed of the peripheral portion of the roller 12 having ribs. Blank 9 as indicated by the arrow in FIG.
Is rotated by simply rotating relative to the stationary reaction surface member 1 and the peripheral surface of the roller 12, to which the blank slides to some extent during the deformation operation. This is prevented by the movement of the blank by the support shaft, while the blank 9 is always supported and driven between the support shafts 128 mounted in adjacent pairs of holders 140, as shown in FIG.

As shown in FIG. 8, the pressing member 130 has a groove facing the support shaft 128 and extending in the axial direction, and the rotating member 144 projecting beyond the outer edge portion of the groove 145 is arranged in this groove. This substantially eliminates friction between the support shaft and the pressing member 130.

When the control lever 134 moves from the arcuate portion of the cam 92 into the recess 137, the intermediate gear 139 is geared by two holders 140, which are connected by a pin 141 which moves in the direction of each other by a spring.
Move to 58. Further movement changes the rotational speed of the support shaft, but in this case, the support shaft 128 moves in a direction away from the blank 9, so it is not important at all.

The control grooves 52, 70, which determine the path of travel of the blank 9, extend to the area covered by the cooperating reaction surface member 1 as indicated by the dotted line 15 in FIG. 1A or parallel thereto. Outside of this area, the control groove passages split in opposite directions and the control grooves 52,7
0 moves further in the direction of separation, and then in the direction of each other, in this area there is no exclusion effect on the blank 9 or the rotor 9V as a finished product, feeding the blank,
The completed rotating body can be discharged.

In the illustrated embodiment, the cooperating reaction surface member 1 is a roller 12
It has a curved shape with respect to, but this is not absolutely necessary. It may therefore be a flat surface on which the roller rolls, and in this regard it is not important whether the reaction surface member moves towards the axis of the roller or whether the roller moves parallel to the reaction surface member. Absent.

[Brief description of drawings]

1A and 1B are schematic diagrams showing a tool used for carrying out the method according to the present invention and a deformed state of a blank deformed by the tool, and FIG. 2 is a schematic view of FIGS. 1A and 1B. FIG. 4 is a development view of the tool shown in FIG. 3, FIG. 3 is a longitudinal sectional view of an embodiment of the apparatus used for carrying out the method according to the present invention, and FIG.
FIG. 5 is a plan view of the apparatus shown in FIG. 3, FIG. 5 is an enlarged view showing details of the apparatus shown in FIGS. 3 and 4, and FIG. 6 is a thrust member of the apparatus shown in FIGS. FIG. 7 is an enlarged view showing the details of the guide device of FIG. 7, FIG. 7 is a more detailed view of the thrust member, FIG. 8 is an exploded view of the transfer device of the device shown in FIGS. 3 and 4, and FIG. Front view, FIG. 10 is a plan view of the transfer device. 1 ... Reaction surface member, 2-6 ... Segment, 7,8,7 ',
8 '... Rib, 9 ... Blank, 10 ... Groove, 12 ... Roller, 14 ... Thrust member, 20 ... Drive motor, 21 ... Clutch, 24, 25 ... Rolling bearing, 26 ... Housing , 3
0 …… spindle, 34,65 …… guide member, 42,85 …… transmission device, 4
7,56 ... Rotating member, 61 ... Ring gear, 63,64,138,139
...... Gear, 81 …… Carriage, 86 …… Pulse motor, 9
2,102 …… Cam, 98,99 …… Wheel, 103 …… Magnet, 117
...... Chip, 128 …… Support roller, 130 …… Pressing member, 13
4 …… Control lever, 140 …… Holder, 142 …… Spring.

Claims (11)

[Claims] 1. A blank is rotated about a longitudinal axis to exert a pressure on the blank that exceeds the yield point of the blank material and to have at least one circumferential recess or groove. However, in the manufacturing method of the rotating body, the width of the groove in the axial direction decreases toward the valley bottom, and the width on which the pressure acts is from the width corresponding to the groove width formed on the peripheral surface of the blank. A method of manufacturing a rotating body, characterized in that the groove bottom is formed to a width of a groove bottom, and the inclined surface of the groove is formed by decreasing the width of the imprint by the imprint that becomes deeper in this order. . 2. A method of manufacturing a rotating body according to claim 1, wherein the groove formed by the blank is a thread groove, and the blank has an outer diameter equal to the outer diameter of the screw. Production method. 3. At least one roller which acts together with the reaction member surface and moves relative to this reaction surface, has at least one circumferential recess or groove, and the axial width of this groove. A manufacturing device of a rotating body that decreases toward a valley bottom, wherein at least one of the roller and the reaction surface is provided with a rib having a predetermined shape that is higher than an outer surface,
The width of the one or more ribs (7,8,7 ', 8') decreases in the relative movement direction between the roller (12) and the reaction surface member, and the height increases. Manufacturing equipment. 4. A manufacturing device according to claim 3, wherein the ribs (7,8,7 ', 8') are driven central rollers (12) and reaction surfaces cooperating with the rollers. A manufacturing apparatus provided on both members (1), the reaction member surface of which is formed by a plurality of segments (2,3,4,5,6), each rib intersecting with each other in a relative movement path. 5. The manufacturing apparatus according to claim 4, wherein each segment (2,3,4,5,6) of the cooperating reaction surface member (1) has a central roller (12). A manufacturing device which is mounted on a carriage (81) which is movably guided in a radial direction with respect to each other and in which each segment is preferably moved independently of one another by a control device (85,86). 6. The manufacturing apparatus according to any one of claims 3 to 5, wherein the central roller (1
2) and ribs (7,8,7 ', 8') provided on the cooperating reaction surface member (1) and intersecting with each other, the central roller (1
Manufacturing equipment that extends at an angle to the axis of 2). 7. The manufacturing apparatus according to any one of claims 3 to 6, wherein the central roller (1
2) is drivingly connected to the transfer device of the blank (9) by a transmission device (42; 61,63,64), which transfer device has one or two rotating members (37,47; 63,64), which are preferably However, the rotary member is separated from the central roller (12) in the axial direction and a thrust member (14) is held inside the roller so as to be movable in the longitudinal direction. Furthermore, the rotary member is fixed by a sliding member or the like. The thrust members (14, 14 ') are engaged in the circumferential control grooves (52, 70) arranged in the mounting member,
Manufacturing device guided in the individual rotary members (37, 47; 62, 69) and axially aligned with each other. 8. A manufacturing apparatus according to claim 7, wherein at least opposite ends of the thrust member (14, 14 ') are rotatable about a longitudinal axis of the thrust member. A thrust member (1) mounted, preferably with the ends of each thrust member (14) aligned coaxially.
Manufacturing equipment that is spring-loaded against 4 '). 9. The manufacturing apparatus according to claim 7, further comprising a ring gear (58) non-rotatably coupled to the central roller (12) with respect to the moving device, the ring gear being provided with the ring gear (58). Gear transmission (139,1) drivingly connected to a support shaft (128) arranged in parallel with the thrust member (14,14 ').
38) meshes with each other, and the support shaft (128) forms a thrust member (14,
14 ') A manufacturing device held in a rotating member for guiding the rotating member or a rotating member (47, 56) non-rotatably connected to the supporting shaft. 10. The manufacturing apparatus according to claim 8, wherein the control groove (52, 70) except for a supply section area of a blank (9) and a completed rotating body (9V) discharge area. During the rotation of the central roller (12), the thrust member (1
A control groove (52,70) associated with the (14,14 ') is guided in both rotary members (37,47; 62,69) and extends parallel to each other in said area. 11. The manufacturing apparatus according to claim 5, wherein the control drive device of the carriage (81) is connected to a measuring device for measuring the completed rotating body, and the carriage ( 81) Manufacturing equipment for adjusting.