EP0173862A2 - Appareil pour faire des cannelures dans des pièces, de préférence dans des pièces cylindriques - Google Patents

Appareil pour faire des cannelures dans des pièces, de préférence dans des pièces cylindriques Download PDF

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Publication number
EP0173862A2
EP0173862A2 EP85109676A EP85109676A EP0173862A2 EP 0173862 A2 EP0173862 A2 EP 0173862A2 EP 85109676 A EP85109676 A EP 85109676A EP 85109676 A EP85109676 A EP 85109676A EP 0173862 A2 EP0173862 A2 EP 0173862A2
Authority
EP
European Patent Office
Prior art keywords
tool part
lever
receptacle
tool
axis
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.)
Withdrawn
Application number
EP85109676A
Other languages
German (de)
English (en)
Other versions
EP0173862A3 (fr
Inventor
Siegmund Kumeth
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.)
KUMETH, SIEGMUND
Original Assignee
Individual
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
Priority claimed from DE19843432939 external-priority patent/DE3432939A1/de
Priority claimed from DE19843445806 external-priority patent/DE3445806A1/de
Application filed by Individual filed Critical Individual
Publication of EP0173862A2 publication Critical patent/EP0173862A2/fr
Publication of EP0173862A3 publication Critical patent/EP0173862A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/202—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/145—Forging machines working with several hammers the hammers being driven by a rotating annular driving member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/54—Making machine elements bolts, studs, or the like with grooves or notches

Definitions

  • the invention relates to a device for X-notching in workpieces, preferably in cylindrical workpieces.
  • cylindrical workpieces for example bolts
  • cylindrical workpieces for example bolts
  • at least one notch on their peripheral surface i.e. are provided with a depression which is pressed into this workpiece by permanent deformation of the material of the workpiece and preferably extends in the longitudinal direction of the workpiece.
  • a typical example of such a workpiece are so-called "grooved pins", which are used, for example, as connecting elements.
  • the invention has for its object to show a device for making notches in workpieces and in particular in cylindrical workpieces, which are characterized by a relatively simple and therefore inexpensive construction, by an optimal force acting on the workpiece to be notched, by optimal force distribution in the Device itself and characterized by a long service life.
  • a device is characterized by a first tool part having a receptacle for the workpiece, by at least one lever pivotally held on this first tool part, which has at least one tool provided with a cutting edge on its side facing the receptacle and on one of the cutting edge forms a first abutment or support surface against which a pressure bolt rests at one end, and a second abutment and support surface for the second tool part on the side facing the receptacle, which is pivotable on the first tool part about an axis including the receptacle Pressure bolt forms.
  • the device according to the invention is characterized by an optimal construction with regard to the forces occurring or to be controlled during the notching process, which also means above all that high forces can be controlled or generated for the notching process with a small tool or device size.
  • notch for example, cylindrical or differently shaped workpieces with a substantially larger diameter and / or to insert notches with a significantly greater length, width and / or depth into a workpiece than is the case with the same size for a given device or tool size known tools or devices is possible.
  • the force is transmitted to the lever, which has at least one tool or tool insert and is pivotally held on the first tool part, via a pressure bolt, which is supported at one end on the lever or on a first contact or support surface provided there and with its other End abuts against a second contact and support surface, which is provided on the second tool part. Since the second tool part can be rotated or pivoted relative to the first workpiece part about an axis that coincides with the axis of the workpiece holder.
  • this push pin acts as a kind of toggle lever, i.e. the..bolt lies in the initial or rest position of the second tool part with its longitudinal extension slightly.- at an angle to a line running radially to the workpiece holder and intersecting the first contact and support surface and is turned into the working position when the second tool part is swiveled or turned brought a position in which the pressure pin with its longitudinal extension lies axially or almost axially with this radial line, ie in the working position, in which the cutting edges of the tool inserts are pressed into the material of the workpiece, the longitudinal extension of the pressure bolt encloses a substantially smaller angle with the radial line than in the rest position.
  • the second tool part is designed like a ring and is arranged on an annular surface of the first tool part which is arranged concentrically to the workpiece holder. This results in a large and therefore optimal storage for the second tool part.
  • the design of the second tool part as a ring-like element also results in an optimal force distribution in this tool part, i.e. the second tool part is highly resilient due to its ring-like design.
  • a plurality of levers are preferably distributed around the workpiece holder, each lever then being operatively connected to the second tool part via a pressure pin. This allows multiple notches to be made in one workpiece. At the same time, this configuration also results in an optimal construction in terms of strength, since the forces exerted on the workpiece by the individual tool inserts cancel each other out.
  • notches in the literal sense, can be introduced into a workpiece with the device according to the invention, but also other depressions, so that “notches” in the sense of the invention are understood to mean any type of depressions.
  • cutting is understood to mean first of all elongated cutting, i.e. Cutting in the literal sense, but also differently shaped, tapered working surfaces of tools or tool inserts, for example also conical working surfaces for pressing in conical recesses in workpieces.
  • the tool provided with the cutting edge can also be a wheel provided with a cutting edge (notch wheel).
  • the second part Tool part attached a drive lever with one end, which is perpendicular to the axis including the receptacle with its longitudinal extent and is articulated at the other end to one end of an intermediate lever.
  • the intermediate lever is then provided at its other end with a bearing in which a circular cylindrical eccentric of an eccentric drive engages.
  • the workpieces to be provided with at least one notch are preferably fed to the device according to the invention in a clocked manner, the movement of the second tool part being synchronized with the feed of the workpieces in such a way that whenever the second tool part is in the Rest or home position, a new workpiece is moved into the workpiece holder.
  • the removal of the workpiece provided with at least one notch from the workpiece holder takes place, for example, when the second workpiece part has returned to its rest or starting position.
  • the removal of the workpiece can also take place or begin when the second tool part has reached its final working position.
  • a wheel provided with a cutting edge on its peripheral surface
  • individual pin-like or bolt-like workpieces can be machined, or a continuous steel wire can be provided with individual notches in sections and then divided into individual workpieces.
  • the device shown in the figures has two spaced and parallel plates or plates 1 and 2, of which the plate 2 is disc-shaped with an annular peripheral surface 3 and the plate 1 has a step-shaped or stepped peripheral surface, which is also by two annular surface areas 4 and 5 is formed.
  • the circumferential surface 3 and the two surface regions 4 and 5 are each concentric to a central axis M of the first tool part formed by the two plates 1 and 2 and perpendicular to the surface sides of the plates 1 and 2, the surface region 4 being at a greater distance from this central axis M. than the surface area 5, whose distance from the central axis M is approximately equal to the distance that the peripheral surface 3 has from this central axis.
  • the two plates 1 and 2 are connected to one another on their mutually facing surface sides by three blocks 6 which are arranged at a uniform distance from one another about the central axis M and are approximately circular segment-like in a cross-sectional plane perpendicular to the central axis M (corresponding to FIG. 1).
  • the plate 1 is fastened to a stationary device frame 7 on its surface side facing away from the plate 2.
  • a sleeve 8 is arranged, which is held at both ends with a through bore of the plates 1 and 2 and is also arranged concentrically to the central axis M.
  • This sleeve which serves as a workpiece holder, is provided in its central region between plates 1 and 2 with three openings 9, which are offset by 120 ° on the circumference of the sleeve and extend in the direction of the central axis M, and which extend from the outer surface of the sleeve 8 to reach into the interior or into the bore 10 of this sleeve.
  • the breakthroughs are shown chungen 9 each have a V-shaped cross section that widens from the bore 10 to the outer surface of the sleeve 8.
  • the bore 10 of this sleeve continues in the inner bore of two rings 12 made of elastic material and then in the inner bore 13 of a sleeve body 14, which by means of an external thread into a bore 11 provided threaded portion is screwed.
  • the bore 13 widens like a funnel to the free end of the sleeve body 14, which projects beyond the surface side of the plate 2 facing away from the plate 1.
  • each lever 16 arranged between the plates 1 and 2 is pivotably mounted at one end, specifically in the space formed between two adjacent blocks 6.
  • each lever 16 carries a tool insert 17 on a surface facing the central axis M and running approximately parallel to this central axis, which tool insert forms a tool cutting 18 on a chisel-like partial region running approximately radially to the central axis M, the longitudinal extent of which extends parallel to the central axis M. runs.
  • Each chisel-like section 17 extends into one of the openings 9.
  • each lever 16 On the side opposite the cutting edge 18, each lever 16 is designed like a hammer head with an attachment 19 and on the side of the attachment 18 facing away from the attachment 18 is provided with a semicircular depression 20, the axis of symmetry of which together with the cutting edge 18 on a common, approximately radial to the central axis M extending line is arranged.
  • the depression 20 of each lever 16 serves as an abutment or support surface for a hemispherical or semi-cylindrical rounded end of a plunger or pressure pin 21.
  • each lever 16 is provided on its side facing away from the central axis M with a blind bore 22 which is opposite the open end of a blind bore 23 provided in a block 6 and whose axis is arranged approximately coaxially with the axis of the blind bore 23 or a corresponding milling is.
  • a tension spring 25 is held at one end on a pin 24 provided in the blind bore 22. The other end of this tension spring is attached to a pin 26 in the blind bore 23. Since the pin 26 is located radially further outward than the pin 24 in relation to the central axis M, each tension spring 25 tries the relevant lever 16 in the sense of increasing the distance between the cutting edge 18 and the central axis M, i.e. to pivot in the direction of arrow A of Fig.l.
  • the annular surfaces formed by the peripheral surface 3 and by the surface regions 4 and 5 there is an essentially ring-shaped second tool part 27 which can be rotated or pivoted over a certain angular range about the central axis M relative to the first tool part formed by the plates 1 and 2 , as indicated by the double arrow B in FIG. 1.
  • the tool part 27 is provided in three areas, each offset by 120 ° about the central axis M, each with a continuous recess 28 extending radially to the central axis M, which preferably has a square cross-section that deviates from the circular shape, for example.
  • each recess 28 a block 29 adapted to the cross section of this recess is arranged so as to be displaceable radially to the central axis M, in such a way that each block 29 with its side facing the central axis M is opposite the shoulder 19 of a lever 16.
  • a half-cylindrical or hemispherical depression 30 is provided in each block 29, which serves as a bearing and support surface for the other, which is located radially further out and is also semi-cylindrical or hemispherical shaped end of a pressure piece or pressure pin 2 1 is used.
  • each block 29 facing away from the central axis M there is one end of a clamping or adjusting bolt 31 provided with an external thread, the axis of which is likewise arranged radially to the central axis M and with its thread in a threaded bore on the peripheral surface of the tool part 27 engages with the help of screws 32 attached plate.
  • the setting of the device with the aid of the adjusting bolts 31 takes place in such a way that in a position of the tool part 27 in which the central axis of a recess 30 of a block 29 lies coaxially with the central axis of a recess 20 of a lever 16 or is supported between these two recesses Pressure pin 21 is arranged with its longitudinal extent radially to the central axis M, all tool inserts 17 with their cutting edges 18 with a protrusion or amount through the associated opening 9 into the interior or into the bore 10 of the sleeve 8, the (protrusion or amount ) corresponds to the depth of the notch to be created in the workpiece.
  • the effective distance increases in each case between the two mutually associated recesses 20 and 30, whereby the levers 16 with their end having the tool insert 17 are each pivoted radially outward by the associated tension spring 25. Since the levers 16 bear against the pressure bolts 21 under prestressing by the tension spring 25, they are held captive in every position of the tool part 27.
  • the tool part 27 is provided with a drive lever 34, which is perpendicular to the central axis M with its longitudinal extension.
  • the drive lever 34 is, for example, made in one piece with the tool part 27 and is on the tool part Part 27 distal end stored with the help of a suitable bearing 35 in one end of an intermediate lever 36, namely about an axis parallel to the axis M.
  • the other end of the intermediate lever 36 is designed as a bearing 37, in which a circular-cylindrical driver or driver 38 engages.
  • This with its cylinder axis 39 parallel to the axis M driver 38 forms the eccentric element of an eccentric drive and is rotatably supported by means not shown about an axis 40 lying eccentrically to the axis 39 and driven to rotate about this axis.
  • the driver 38 rotates about the axis 40
  • the actuating lever 34 and thus also the tool part 27 is pivoted back and forth according to the double arrow B around the axis M, the intermediate lever being subjected to tension when the tool part is pivoted into the working position.
  • the workpiece provided with the notches in the sleeve 8 is ejected and a new workpiece to be machined is inserted into the sleeve 8. It will be useful to provide the feeding and removal of the workpieces on two different sides of the sleeve 8, so that the workpieces are then moved through the sleeve 8 in a single direction during processing.
  • the device can also be provided with sections of steel wire passed through the sleeve 8 with the desired notches, the steel wire then being cut or cut into individual pin-shaped or bolt-shaped workpieces after the notching.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Milling Processes (AREA)
EP85109676A 1984-09-07 1985-08-01 Appareil pour faire des cannelures dans des pièces, de préférence dans des pièces cylindriques Withdrawn EP0173862A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19843432939 DE3432939A1 (de) 1984-09-07 1984-09-07 Vorrichtung zum einbringen von kerben in werkstuecke, insbesondere in zylindrische werkstuecke
DE3432939 1984-09-07
DE3445806 1984-12-15
DE19843445806 DE3445806A1 (de) 1984-12-15 1984-12-15 Vorrichtung zum einbringen von kerben in werkstuecke, insbesondere in zylindrische werkstuecke

Publications (2)

Publication Number Publication Date
EP0173862A2 true EP0173862A2 (fr) 1986-03-12
EP0173862A3 EP0173862A3 (fr) 1988-07-20

Family

ID=25824531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109676A Withdrawn EP0173862A3 (fr) 1984-09-07 1985-08-01 Appareil pour faire des cannelures dans des pièces, de préférence dans des pièces cylindriques

Country Status (2)

Country Link
US (1) US4644777A (fr)
EP (1) EP0173862A3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203197A (en) * 1991-08-19 1993-04-20 Cogsdill Tool Products, Inc. Clamp assembly
US6062061A (en) * 1998-11-04 2000-05-16 General Motors Corporation Crimping tool for a sealing washer
CA2495792C (fr) * 2002-08-16 2009-10-13 Machine Solutions, Inc. Technologie d'emboutissage
US6925847B2 (en) * 2002-08-31 2005-08-09 Thomas Motsenbocker Hand held stent crimping apparatus and method
US7021114B2 (en) * 2004-04-16 2006-04-04 Boston Scientific Scimed, Inc. Stent crimper
CN105458720A (zh) * 2015-12-30 2016-04-06 无锡奇能焊接***有限公司 液化气钢瓶旋切缩口抛光一体机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US540906A (en) * 1895-06-11 dayton
US1480077A (en) * 1920-02-13 1924-01-08 Edward E Johnson Die-forging machine
US1858414A (en) * 1927-07-20 1932-05-17 Firm Malmedie & Co Maschinenfa Machine for making indented taper pins
US3203078A (en) * 1963-01-04 1965-08-31 Buchanan Electrical Prod Corp Method of making an electrical connection
LU54709A1 (fr) * 1967-10-20 1968-01-26
US3685341A (en) * 1970-06-16 1972-08-22 U S Eng Co Inc Ram head and adjustable connector combination
GB2081144A (en) * 1980-08-01 1982-02-17 Sigma Koncern An arrangement for the radial forming of bodies

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1306232A (en) * 1919-06-10 Swaging machine
US279124A (en) * 1883-06-12 Wire-pointing machine
US330114A (en) * 1885-11-10 Machine for drawing wire

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US540906A (en) * 1895-06-11 dayton
US1480077A (en) * 1920-02-13 1924-01-08 Edward E Johnson Die-forging machine
US1858414A (en) * 1927-07-20 1932-05-17 Firm Malmedie & Co Maschinenfa Machine for making indented taper pins
US3203078A (en) * 1963-01-04 1965-08-31 Buchanan Electrical Prod Corp Method of making an electrical connection
LU54709A1 (fr) * 1967-10-20 1968-01-26
US3685341A (en) * 1970-06-16 1972-08-22 U S Eng Co Inc Ram head and adjustable connector combination
GB2081144A (en) * 1980-08-01 1982-02-17 Sigma Koncern An arrangement for the radial forming of bodies

Also Published As

Publication number Publication date
EP0173862A3 (fr) 1988-07-20
US4644777A (en) 1987-02-24

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