WO2021149168A1 - ボールねじ用盛上げタップ - Google Patents

ボールねじ用盛上げタップ Download PDF

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Publication number
WO2021149168A1
WO2021149168A1 PCT/JP2020/002001 JP2020002001W WO2021149168A1 WO 2021149168 A1 WO2021149168 A1 WO 2021149168A1 JP 2020002001 W JP2020002001 W JP 2020002001W WO 2021149168 A1 WO2021149168 A1 WO 2021149168A1
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WO
WIPO (PCT)
Prior art keywords
thread
flank surface
pitch
ball screw
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/002001
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English (en)
French (fr)
Japanese (ja)
Inventor
一光 原田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OSG Corp
Original Assignee
OSG Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OSG Corp filed Critical OSG Corp
Priority to EP20914780.0A priority Critical patent/EP4094870A4/en
Priority to CN202080094161.5A priority patent/CN115038540B/zh
Priority to US17/793,517 priority patent/US11826844B2/en
Priority to KR1020227027185A priority patent/KR102706552B1/ko
Priority to PCT/JP2020/002001 priority patent/WO2021149168A1/ja
Priority to JP2021572173A priority patent/JP7297943B2/ja
Publication of WO2021149168A1 publication Critical patent/WO2021149168A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G7/00—Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
    • B23G7/02—Tools for this purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06—Taps

Definitions

  • the present invention relates to a ball screw raising tap, and particularly relates to a technique for reducing the thrust force for pushing the raising tap when tapping a female screw.
  • the thread of the male screw of the biting part bites into the inner peripheral surface of the prepared hole provided in the workpiece and is plastically deformed, while the biting part of the raised tap is inside the prepared hole.
  • a thrust force in the forward direction is applied to the raising tap together with the rotational torque from the tapping processing device so as to be screwed.
  • the ball screw When tapping a female screw, which is a ball screw having a semicircular valley, using a raised tap in which a male screw consisting of a semicircular thread corresponding to the female screw is formed, the ball screw is processed.
  • the dimensions and shape of the female screw are strictly required. Therefore, similarly to the above, in addition to the pressure for plastically deforming the workpiece being applied from the workpiece, the reaction force of the thrust force is applied to the advancing flank surface from the workpiece. In some cases, the wear of the flank surface on the advancing side is promoted, the shape of the tapped ball screw is deformed, and the shape accuracy is lowered.
  • the present invention has been made in the background of the above circumstances, and an object of the present invention is to reduce the pressure on the advancing flank surface during the tapping process of the ball screw to suppress a decrease in the shape accuracy of the ball screw. To do.
  • the gist of the present invention is to have (a) a complete mountain portion and a bite portion that is continuously provided on the complete mountain portion and has a smaller diameter toward the tip, and the complete mountain portion and the food.
  • a male screw having a semicircular cross section is provided at the attachment portion, and by being screwed into a pilot hole provided in the workpiece, the inner peripheral surface of the pilot hole is plastically deformed to form the male screw of the complete mountain portion.
  • a ball screw raising tap for forming a corresponding ball screw wherein (b) the thread of the male screw is an advancing side flank surface that becomes an advancing side when screwed into the pilot hole and after the advancing side flank surface. It is provided with a chasing side flank surface on the side, and (c) the pushing depth of the advancing flank surface into the work piece at the bite portion is larger than the pushing depth of the chasing side flank surface into the work piece. Is also formed to be small.
  • the thread of the male screw is a leading flank surface which is a forward side when screwed into the pilot hole and a trailing flank surface which is a rear side of the leading flank surface.
  • the bite portion is formed so that the pushing depth of the advancing flank surface into the workpiece is smaller than the pushing depth of the chasing flank surface into the workpiece.
  • At least a part of the pitch of the thread in the bite portion is such that the thread in the bite portion does not become wider than the ball screw formed in the workpiece. It is made larger than the pitch of the thread in the part. From this, during the tapping process, the pressure from the workpiece applied to the advancing flank surface to plastically deform the workpiece is smaller than that of the chasing flank surface, so that the pressure on the advancing flank surface and the pressure on the advancing flank surface are reduced. Wear of the flank surface on the advancing side is suppressed, and deterioration of the shape accuracy of the ball screw is suppressed. In addition, the durability of the ball screw raising tap and the decrease in tool life are suppressed.
  • the pitch of the threads in the bite portion is equal pitch, which is larger than the pitch of the threads in the complete thread portion.
  • the pitch of a part of the thread pitches in the bite portion is made larger than the thread pitch in the complete thread portion. From this, the pressure from the work piece applied to the advancing flank surface to plastically deform the work piece is smaller than that of the chasing flank surface, so that the pressure on the advancing flank surface and the pressure on the advancing flank surface during tapping are increased. Wear of the flank surface on the advancing side is suppressed, and deterioration of the shape accuracy of the ball screw is suppressed. In addition, the durability of the ball screw raising tap and the decrease in tool life are suppressed.
  • the pitch of the thread in the bite portion is increased toward the tip of the bite portion. From this, during the tapping process, the pressure from the workpiece applied to the advancing flank to plastically deform the workpiece is smaller than the trailing flank surface, so that the pressure on the advancing flank surface and the advancing Wear of the side flank surface is suppressed, and deterioration of the shape accuracy of the ball screw is suppressed. In addition, the durability of the ball screw raising tap and the decrease in tool life are suppressed.
  • the thread in the bite portion is formed by bringing the trailing flank surface closer to the advancing flank surface, and the pitch of the screw thread in the bite portion is in the complete thread portion. It is increased with respect to the pitch of the thread. From this, during the tapping process, the pressure from the workpiece applied to the advancing flank surface to plastically deform the workpiece is smaller than that of the chasing flank surface, so that the pressure on the advancing flank surface and the pressure on the advancing flank surface are reduced. Wear of the flank surface on the advancing side is suppressed, and deterioration of the shape accuracy of the ball screw is suppressed. In addition, the durability of the ball screw raising tap and the decrease in tool life are suppressed.
  • the screw thread in the bite portion is formed so that the trailing flank surface approaches the advancing flank surface toward the tip of the bite portion, and the screw in the bite portion.
  • the pitch of the mountain is increased toward the tip of the bite portion.
  • FIG. 2 is a sectional view taken along line II-II of the raised tap for a ball screw of FIG. It is a main part of the cross section including the central axis of the ball screw raising tap of FIG. 1, and the pitch Po of the thread of the complete thread and the pitch Pg of the thread of the bite in the thread continuous in the direction of the central axis. It is a figure which shows.
  • the ball screw raising tap of FIG. 1 is a sectional view taken along line II-II of the raised tap for a ball screw of FIG. 1, and the pitch Po of the thread of the complete thread and the pitch Pg of the thread of the bite in the thread continuous in the direction of the central axis.
  • FIG. 6 is a diagram for explaining the action of the thread of the bite portion biting into the inner peripheral surface of the pilot hole and expanding the pilot hole in the ball screw raising tap of FIG. 6, which corresponds to FIG.
  • the thrust force F at the time of rolling by the ball screw raising tap in FIG. 6 is calculated by CAE (Computer Aided Engineering) analysis in two-dimensional coordinates consisting of a horizontal axis indicating time and a vertical axis indicating the magnitude of the force. It is a figure which shows. It is a figure which shows the thread of the ball screw raising tap of still another Example of this invention, and is the figure which corresponds to FIG.
  • CAE Computer Aided Engineering
  • FIG. 11 is a view for explaining the action of the thread of the bite portion biting into the inner peripheral surface of the pilot hole and expanding the pilot hole in the ball screw raising tap of FIG. 11, and is a view corresponding to FIG.
  • FIG. 11 is a view for explaining the action of the thread of the bite portion biting into the inner peripheral surface of the pilot hole and expanding the pilot hole in the ball screw raising tap of FIG. 11, and is a view corresponding to FIG.
  • FIG. 1 is a diagram showing a ball screw hoisting tap (hereinafter referred to as a hoisting tap) 10 according to an embodiment of the present invention, and is a front view seen from a direction perpendicular to the central axis C which is the rotation axis of the hoisting tap 10.
  • the raising tap 10 has a shank 12 attached to a main shaft of a tapping processing device (not shown) via a holder (not shown) and a threaded portion 16 for raising (rolling) a female screw on a central axis C (tap axis). And are concentrically prepared.
  • FIG. 2 is a cross-sectional view taken along the thread 18 of the threaded portion 16 at the portion II-II in FIG.
  • the threaded portion 16 has a polygonal shape composed of outwardly curved sides and a substantially regular quadrangular cross section in this embodiment, and a pilot hole 42 of a work piece (female thread material) 40 is formed on the outer peripheral surface thereof.
  • a male screw 14 for raising and processing a female screw by biting into the inner peripheral surface (surface layer portion) 42a of the above and plastically deforming the screw 14 is provided.
  • the raised tap 10 of this embodiment is for processing a single-threaded screw, and the male screw 14 is also a single-threaded screw.
  • the screw thread 18 constituting the male screw 14 has a symmetrical R cross-sectional shape corresponding to the valley shape of the ball screw (JIS B1192) which is a female screw to be formed, and corresponds to the ball screw (female screw).
  • a plurality of (4 in this embodiment) projecting portions 20 which are formed along the vine winding of the lead angle and whose screw threads 18 project outward in the radial direction, and following the projecting portions 20.
  • Relief portions 22 having a small diameter are provided alternately along the advancing direction of the screw and at equal intervals of 90 degrees around the central axis C.
  • each apex portion of the regular quadrangle is a protrusion 20
  • a large number of protrusions 20 are provided in a direction parallel to the central axis C, and a row of a large number of protrusions 20 continuous in the axial direction are provided. It is provided around the central axis C at equal angular intervals.
  • the threaded portion 16 has a perfect threaded portion 26 having a constant diametrical dimension and a distance between the peaks of the thread 18 in the central axis C direction, and a perfect threaded portion 26 having a constant pitch Po toward the tip side, and the pitch Pg of the threaded thread 18 becomes a perfect thread.
  • the portion 26 has a bite portion 24 that is larger than the pitch Po of the screw thread 18.
  • the outer diameter, effective diameter, and valley diameter of the thread 18 constituting the male screw 14 have a small diameter with a constant change gradient in a symmetrical and semicircular cross-sectional shape, that is, an R shape.
  • the diameter dimension has been changed.
  • the bite portion 24 also has a substantially regular square shape as in FIG. 2, and has protrusions 20 and relief portions 22 alternately provided in the circumferential direction.
  • FIG. 3 shows a main part of the cross section including the central axis C of the raised tap 10 of FIG. 1 and passing through the protruding portion 20, and is a thread 18 of the complete thread portion 26 of the threads 18 continuous in the central axis C direction.
  • the pitch Po of the above and the pitch Pg of the thread 18 of the bite portion 24 are shown.
  • the pitch Pg of the threads 18 of the bite portion 24 is equal to each other, and the threads 18 in the bite portion 24 are not wider than the ball screw 44 formed in the prepared hole 42 of the workpiece 40. In the range, it is set larger than the pitch Po of the thread 18 of the complete thread portion 26.
  • the ball screw 44 formed in the prepared hole 42 of the workpiece 40 has the same shape as the screw thread 18 formed in the complete thread portion 26.
  • FIG. 4 shows the thread 18 obtained when the raised tap 10 of this embodiment is divided every 90 degrees around the central axis C in an overlapping manner.
  • FIG. 5 when the bite portion 24 of the raised tap 10 is screwed into the prepared hole 42 of the workpiece 40, the thread 18 of the raised tap 10 is screwed into the prepared hole 42 as the raised tap 10 rotates. It is a figure explaining the action which bites into the inner peripheral surface 42a and expands a prepared hole 42.
  • a thick solid line indicates a thread in the first cross section at a predetermined angle position around the central axis C
  • a thick broken line indicates a second cross section rotated 90 degrees clockwise (forward side) from the first cross section.
  • the one-point chain line shows the thread in the third cross section rotated 90 degrees clockwise (forward side) from the second cross section
  • the two-point chain line shows the thread in the third cross section further 90 degrees clockwise than the third cross section.
  • the thread in the third cross section rotated to (advance side) is shown.
  • the bite portion 24 Since the pitch Pg of the thread 18 is set to be larger than the pitch Po of the thread 18 of the complete thread portion 26, as shown in FIG. 5, the advancing flank surface 18a on the advancing side of the thread 18 Has a smaller biting amount, that is, a pushing depth with respect to the workpiece 40, as compared with the trailing flank surface 18b, which is the rear side of the advancing flank surface 18a.
  • the pushing depth Da of the advancing flank surface 18a with respect to the workpiece 40 is smaller than the pushing depth Db of the chasing flank surface 18b with respect to the workpiece 40, and the plasticity of the workpiece 40 with the advancing flank surface 18a.
  • the amount of deformation is smaller than the amount of plastic deformation due to the trailing flank surface 18b. Therefore, the reaction force Fa, which is the combined value of the reaction force from the workpiece 40 acting on the advancing flank surface 18a, is the combined value of the reaction force from the workpiece 40 acting on the chasing flank surface 18b. It is smaller than the reaction force Fb of.
  • the thrust reaction force Fs facing the thrust force (pushing force) in the forward direction applied from the tapping processing device becomes.
  • FIG. 11 is a cross-sectional view of a main part of a raised tap 110 of a comparative example in which the pitch Po of the thread 18 in the complete thread portion 26 and the pitch Pg of the thread 18 in the bite portion 24 are equal to each other, that is, they have a standard shape. be.
  • FIG. 12 is a diagram showing the thread 18 obtained when the tap 110 of the raised tap 110 of FIG. 11 is divided every 90 degrees around the central axis C in an overlapping manner.
  • FIG. 13 is a diagram for explaining the action of the thread 18 of the bite portion 24 biting into the inner peripheral surface 42a of the pilot hole 42 and expanding the pilot hole 42 in the raised tap 110 of FIG.
  • the advancing flank surface 18a has a bite amount with respect to the chasing side flank surface 18b, that is, a bite amount with respect to the workpiece 40, that is, a push depth Db.
  • the pushing depth Da is the same, and the amount of plastic deformation of the workpiece 40 due to the advancing flank surface 18a is equivalent to the amount of plastic deformation of the workpiece 40 due to the trailing flank surface 18b. Therefore, the reaction force Fa from the workpiece 40 acting on the advancing flank surface 18a is the same as the reaction force Fb from the workpiece 40 acting on the trailing flank surface 18b.
  • the complete mountain portion 26 has a complete mountain portion 26 and a bite portion 24 that is continuously provided on the complete mountain portion 26 and has a smaller diameter toward the tip, and is completely.
  • a male screw 14 having a semicircular cross section is provided in the mountain portion 26 and the bite portion 24, and by being screwed into the pilot hole 42 provided in the workpiece 40, the inner peripheral surface 42a of the pilot hole 42 is formed.
  • a raised tap 10 for forming a ball screw 44 corresponding to the male screw 14 of the complete thread portion 26 by plastic deformation, and the thread 18 of the male screw 14 is the advancing side which becomes the advancing side when screwed into the prepared hole 42.
  • the follow-up flank surface 18b which is the rear side of the flank surface 18a and the advancing flank surface 18a, is provided, and the pushing depth Da of the advancing flank surface 18a into the workpiece 40 in the bite portion 24 is the chasing flank surface 18b. It is formed so as to be smaller than the pushing depth Db into the workpiece 40.
  • the reaction force Fa from the workpiece 40 applied to the advancing flank 18a in order to plastically deform the workpiece 40 is applied to the trailing flank surface 18b from the workpiece 40. It is made smaller than the reaction force Fb. Therefore, during the tapping process, the pressure and wear on the advancing flank surface 18a are suppressed, and a high-precision ball screw can be obtained. Further, the pressure and wear on the advancing flank surface 18a are suppressed, and the durability of the raised tap 10 and the decrease in tool life are suppressed.
  • the screw thread 18 has a symmetrical R cross-sectional shape, and the entire pitch Pg of the screw thread 18 of the bite portion 24 is the screw thread in the bite portion 24.
  • the pushing depth of the advancing flank surface 18a of 18 is larger than the pitch Po of the thread 18 of the complete thread 26 so as not to be wider than the ball screw 44 formed in the prepared hole 42 of the workpiece 40.
  • the reaction force Fa from the workpiece 40 applied to the advancing flank surface 18a in order to plastically deform the workpiece 40 is applied to the trailing flank surface 18b from the workpiece 40. It is made smaller than the reaction force Fb of. Therefore, during the tapping process, the pressure and wear on the advancing flank surface 18a are suppressed, and a high-precision ball screw can be obtained.
  • FIG. 6 is a cross-sectional view of a main part of the raised tap 50 according to another embodiment of the present invention, and is a view corresponding to FIG. 3 showing a screw thread 18.
  • FIG. 7 is a diagram showing the thread 18 obtained when the tap 50 of FIG. 6 is divided at 90 degree intervals around the central axis C in an overlapping manner.
  • FIG. 8 is a diagram illustrating an action of the screw thread 18 of the bite portion 24 biting into the inner peripheral surface 42a of the pilot hole 42 and expanding the pilot hole 42 in the raised tap 50 of FIG.
  • the thread 18 is formed by moving the trailing flank surface 18b closer to the tip of the biting portion 24 and approaching the advancing side flank surface 18a in the biting portion 24.
  • the pitch Pg of the thread 18 of the bite portion 24 is sequentially set to a pitch Pg1 larger than the pitch Po of the thread 18 of the complete thread portion 26 and a Pg2 larger than the pitch Pg1. It has been enlarged.
  • the follow-up flank surface 18b advances in the bite portion 24 toward the tip of the bite portion 24, and the thread 18 is formed by approaching the side flank surface 18a.
  • the pitch Pg of the thread 18 of the bite portion 24 is made larger than the pitch Po of the thread of the complete thread portion. From this, during the tapping process, the reaction force Fa from the workpiece 40 applied to the advancing flank surface 18a in order to plastically deform the workpiece is applied to the trailing flank surface 18b from the workpiece 40. It is made smaller than the reaction force Fb. Therefore, during the tapping process, the pressure on the advancing flank surface 18a and the wear of the advancing flank surface 18a are suppressed, and the deterioration of the shape accuracy of the ball screw is suppressed.
  • 3D (three-dimensional) -CAD (Computer Aided) with the model of this embodiment in which the pitches Pg1 and Pg2 of 18 are larger than the pitch Po of the thread 18 of the complete thread portion 26 and larger toward the tip of the bite portion 24. Created in Design). Then, the thrust force F (N) received from the raised tap when rolling (tapping) under the following rolling conditions was analyzed by CAE.
  • the shaft nominal diameter is 6 mm
  • the pitch is 1 mm (one male thread)
  • the thread 18 of the bite portion 24 is a raised tap with 2.5 threads, and the bite portion. It is the same as the raised tap 10 shown in FIGS. 1 to 3 except that the pitch Pg of the threads 18 of 24 is different.
  • FIG. 9 and 14 show the thrust force (pushing) at the initial stage of tapping processing according to the present embodiment and the comparative example in the two-dimensional coordinates consisting of the horizontal axis indicating time and the vertical axis indicating the magnitude of the force. Force) F (N) are shown respectively.
  • the thrust force at the time of forward movement (normal rotation) in this embodiment shows a significantly lower value than that of the comparative example of FIG.
  • FIG. 10 is a diagram corresponding to FIG. 3 showing the thread 18 of the raised tap 60 of still another embodiment of the present invention.
  • the pitch Pg of the screw thread 18 is increased toward the tip of the screw thread 18.
  • the pitch Pg1 of a part of the pitch Pg of the thread 18 of the bite portion 24 is larger than the pitch Po of the thread of the complete thread portion 26. For this reason, during the tapping process, the pressure from the workpiece 40 applied to the advancing flank surface 18a in order to plastically deform the workpiece 40 is made smaller than that of the trailing flank surface 18b. Therefore, during the tapping process, the reaction force Fa with respect to the advancing flank surface 18a is suppressed, and the durability of the raised tap 10 and the decrease in tool life are suppressed.
  • the screw thread 18 provided on the male screw 14 is formed by being screwed into the prepared hole 42 provided on the workpiece 40 from the bite portion 24 side. It is used to form a ball screw 44 by biting into the inner peripheral surface 42a of the prepared hole 42 and plastically deforming it.
  • a drill, reamer, or the like for processing the prepared hole 42 is integrated with the tip end side of the tap.
  • an inner diameter finishing blade for finishing the inner diameter of the ball screw 44 which can be integrally provided on the ball screw 44. Further, it can be applied not only to a raised tap for processing a single thread, but also to a raised tap for processing a multi-threaded screw having two or more threads.
  • the raised taps 10, 50, 60 of the above-described embodiment preferably have three or more rows at equal intervals around the central axis C so that a plurality of threads 18 are continuous in a direction parallel to the central axis C.
  • the protrusions 20 of each row may be provided so as to be continuous in a twisted spiral around the central axis C, or may be provided around the central axis C at unequal intervals. It is possible. Further, if necessary, three or more oil grooves or the like for supplying coolant may be provided in the central axis C direction so as to divide the male screw 14 in the circumferential direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Forging (AREA)
PCT/JP2020/002001 2020-01-21 2020-01-21 ボールねじ用盛上げタップ Ceased WO2021149168A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20914780.0A EP4094870A4 (en) 2020-01-21 2020-01-21 Thread forming tap for ball screw
CN202080094161.5A CN115038540B (zh) 2020-01-21 2020-01-21 滚珠丝杠螺纹用挤压丝锥
US17/793,517 US11826844B2 (en) 2020-01-21 2020-01-21 Thread forming tap for ballscrew
KR1020227027185A KR102706552B1 (ko) 2020-01-21 2020-01-21 볼 나사용 스레드 포밍 탭
PCT/JP2020/002001 WO2021149168A1 (ja) 2020-01-21 2020-01-21 ボールねじ用盛上げタップ
JP2021572173A JP7297943B2 (ja) 2020-01-21 2020-01-21 ボールねじ用盛上げタップ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/002001 WO2021149168A1 (ja) 2020-01-21 2020-01-21 ボールねじ用盛上げタップ

Publications (1)

Publication Number Publication Date
WO2021149168A1 true WO2021149168A1 (ja) 2021-07-29

Family

ID=76993178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/002001 Ceased WO2021149168A1 (ja) 2020-01-21 2020-01-21 ボールねじ用盛上げタップ

Country Status (6)

Country Link
US (1) US11826844B2 (https=)
EP (1) EP4094870A4 (https=)
JP (1) JP7297943B2 (https=)
KR (1) KR102706552B1 (https=)
CN (1) CN115038540B (https=)
WO (1) WO2021149168A1 (https=)

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Publication number Priority date Publication date Assignee Title
EP0004089A1 (de) * 1978-03-15 1979-09-19 Ernst Reime GmbH & Co. KG Spezialfabrik für Präzisionsgewindeschneidwerkzeuge Gewindefurcher
JPH01289615A (ja) * 1988-05-17 1989-11-21 O S G Kk 盛上げタップ
JPH0274127U (https=) * 1988-11-29 1990-06-06
JP2000088072A (ja) * 1998-09-11 2000-03-28 Thk Co Ltd ボールねじナット、該ボールねじナットを使用した直線案内装置及びステアリング用ボールねじ並びにボールねじナットの製造方法
JP2004314231A (ja) 2003-04-16 2004-11-11 Yamawa Seiki Kogyo Kk 盛上げタップ
US20110085867A1 (en) * 2009-10-09 2011-04-14 Harry Leroy Ellis Form Tap Having a Plurality of Lobes

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US2302920A (en) * 1940-07-27 1942-11-24 Harold R Sobie Clamp
US3248747A (en) * 1962-11-01 1966-05-03 Nuckey Scott & Company Ltd Fluteless taps
US3561171A (en) * 1968-08-14 1971-02-09 Balax Inc Swaging taps with uniform crest width and method of manufacture thereof
DE2302920A1 (de) * 1972-01-21 1973-08-02 Bendix Corp Gewindefurcher mit einem sich unterschiedlich verjuengenden gewindebereich
CS224186B1 (en) * 1981-07-22 1983-12-30 Frantisek Fronek Tap with internal hole
DE112004001673T5 (de) * 2003-09-11 2006-07-06 Ntn Corp. Spindelmutter und Verfahren zur Herstellung derselben
EP2229257B1 (de) * 2007-12-12 2013-07-24 EMUGE-Werk Richard Glimpel GmbH & Co.KG Fabrik für Präzisionswerkzeuge Gewindebohrer und verfahren zur herstellung eines gewindebohrers
JP5237659B2 (ja) * 2008-03-18 2013-07-17 オーエスジー株式会社 切削タップ
US8602841B2 (en) * 2009-06-25 2013-12-10 Harry Leroy Ellis Form tap and method of making such
KR20120131020A (ko) * 2011-05-24 2012-12-04 김영좌 나사전조탭
US10173257B2 (en) * 2016-01-28 2019-01-08 Nittan Valve Co., Ltd. Method of machining screw
CN209632043U (zh) * 2019-02-02 2019-11-15 张咏 无缝无毛刺挤压丝锥及其制作的内螺纹
DE102019130009A1 (de) * 2019-11-07 2021-05-12 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Werkzeug zur spanlosen Erzeugung oder Nachbearbeitung eines Gewindes, Verfahren zum Herstellen des Werkzeugs und Verfahren zum Herstellen eines Gewindes
CN115066306B (zh) * 2020-01-21 2024-12-06 Osg株式会社 挤压丝锥

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004089A1 (de) * 1978-03-15 1979-09-19 Ernst Reime GmbH & Co. KG Spezialfabrik für Präzisionsgewindeschneidwerkzeuge Gewindefurcher
JPH01289615A (ja) * 1988-05-17 1989-11-21 O S G Kk 盛上げタップ
JPH0274127U (https=) * 1988-11-29 1990-06-06
JP2000088072A (ja) * 1998-09-11 2000-03-28 Thk Co Ltd ボールねじナット、該ボールねじナットを使用した直線案内装置及びステアリング用ボールねじ並びにボールねじナットの製造方法
JP2004314231A (ja) 2003-04-16 2004-11-11 Yamawa Seiki Kogyo Kk 盛上げタップ
US20110085867A1 (en) * 2009-10-09 2011-04-14 Harry Leroy Ellis Form Tap Having a Plurality of Lobes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4094870A4

Also Published As

Publication number Publication date
CN115038540A (zh) 2022-09-09
EP4094870A4 (en) 2024-02-28
JP7297943B2 (ja) 2023-06-26
KR20220121880A (ko) 2022-09-01
JPWO2021149168A1 (https=) 2021-07-29
EP4094870A1 (en) 2022-11-30
KR102706552B1 (ko) 2024-09-12
US20230122014A1 (en) 2023-04-20
US11826844B2 (en) 2023-11-28
CN115038540B (zh) 2024-03-15

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