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WO2014081318A1 - Appareil de couplage de mandrin de machine - Google Patents

Appareil de couplage de mandrin de machine Download PDF

Info

Publication number
WO2014081318A1
WO2014081318A1 PCT/NZ2013/000212 NZ2013000212W WO2014081318A1 WO 2014081318 A1 WO2014081318 A1 WO 2014081318A1 NZ 2013000212 W NZ2013000212 W NZ 2013000212W WO 2014081318 A1 WO2014081318 A1 WO 2014081318A1
Authority
WO
WIPO (PCT)
Prior art keywords
jaw
curved
slide
insert
slide member
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/NZ2013/000212
Other languages
English (en)
Inventor
Roger Edward Latimer
James Michael COOMBE
Nathan Brad STANTIALL
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.)
TEKNATOOL INTERNATIONAL Ltd
Original Assignee
TEKNATOOL INTERNATIONAL Ltd
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 TEKNATOOL INTERNATIONAL Ltd filed Critical TEKNATOOL INTERNATIONAL Ltd
Publication of WO2014081318A1 publication Critical patent/WO2014081318A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16004—Jaws movement actuated by one or more spiral grooves
    • B23B31/16008—Details of the jaws
    • B23B31/16016—Fixation on the master jaw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/1627—Details of the jaws
    • B23B31/16279—Fixation on the master jaw

Definitions

  • the present invention relates to a machine chuck coupling apparatus for holding a work piece to be cut on a cutting machine or lathe and to a method of operation.
  • the invention is directed particularly but not solely towards a lathe machine chuck coupling apparatus that is a rapid change machine chuck apparatus.
  • the rotating chuck comprising movable and adjustable jaw members with a centrally located recessed space of a certain diameter for receiving at least one workpiece or drilling bit or cutting member, and gripping, to allow the machine tool to cut, drill, sand, knurl or any other deformation in both contraction and expanding modes.
  • a chuck is made up of several, peripherably movable jaw members which are operated and moved using a key in combination with a hand operation which causes the chuck be rotated to in turn, rotate and move the jaws in one radial direction and outwardly to reduce the recessed space diameter or in another radial direction and inwardly to increase the diameter of the recessed space depending in the size of the work piece, drilling bit or cutting member being used.
  • the invention is said to reside in a machine chuck coupling apparatus for a machine chuck body comprising at least two jaw slide members and at least two jaw members together forming a circle shape having a radius with a radial axis and outer peripheral curved surface with a central inner recess for a work piece, whereby each jaw member is slidably attached underneath to one slide member by sliding means in a curved axis at right angles to the radial axis whereby each slide member is operatively supported and slidably connected underneath in a radial direction to the chuck body whereby the jaw members are adapted to hold at least one workpiece there between.
  • the sliding engagement includes an insert member has a body with a curved tongue member and curved male dovetail member which is slidably engaged with and between a j aw member and slide member.
  • the slide member is a block shaped member having length commensurate with a radial axis of the chuck body and a width with side walls and end walls oriented at right to the length wherein there is a curved female dovetail slot 14 on an upper surface which extends from side wall to side wall of the slide member wherein the curved slot is a female dovetail slot adapted to slidably receive the male dovetail member.
  • the slide member includes a pathway including at least one aperture extending from a front face to an end face including an aperture portion leading to a trough portion which then ends in a curved recess at an opposite end, and locking means in the form of a push pin member with a vertical dowel pin which is biasedly and slidably held within the aperture portion such that in a relaxed position the dowel pin is located within the female dovetail slot 14 and when the push pin 25 is pushed, the biased means is compressed to push the push pin into a recess groove 23 and out of curved female dovetail slot 14 to allow the release of the insert member and or jaw member.
  • the front face of the slide member is shaped having flat wall surface and the rear wall is rounded in an angular manner, the sides of the slide member are formed having a ledge or shoulder which outwardly protrudes which are adapted for holding and guiding each slide member to the chuck body and wherein the base of the slide member includes fins or grooves for sliding receipt of a screw and chuck pinion socket mechanism that holds the slide member in place in the chuck body and causes the slide member to be moved radially.
  • the body of the insert member has side walls, end walls, upper surface and lower surface wherein the curved tongue member is located at the upper surface and the curved male dovetail member is located below the curved tongue member whereby the curved tongue member is shaped having a square cross section and the curved male dovetail member is shaped having angled side walls whereby both tongues extend from end to end walls and the insert member is provided with a tapered locking groove which is located within the curved male dovetail member and extends from one side wall being oriented when in use in a radial direction or in a direction at right angles to the curved tongue member and curved male dovetail member.
  • the jaw member has a body shaped as a segment of a circle area having radial side edge walls and curved end walls, the body includes a planar member with an upper surface, lower surface bordered by side edge walls being radial oriented and curved end edge walls, the end edge walls are parallel with each other with one end edge wall being smaller than the other end edge wall and there is at least one upstanding ridge member being curved and extending from side edge wall to side edge wall wherein the upstanding ridge is oriented parallel with the end edge walls.
  • a lower curved groove is provided on the lower surface of the jaw member, the tongue member of the insert member is adapted to slidably interfit within the lower groove of the jaw member and the tapered locking groove of the insert member is adapted to slidably interfit with the dowel pin of the push pin of the slide member.
  • the insert member can be formed as a planar block member having an upper surface, lower surface, end edge walls and side edge walls wherein in use the side edge walls are angled side edge walls adapted to be slidably received by the curved female dovetail slot 14 of the slide member.
  • Preferably one end edge wall is curved and the other end edge wall is vertical wall.
  • a fixing apertures extending from the upper surface to lower surface and matching apertures in the planar body of the jaw member, to enable fasteners therein to fasten the insert member to the lower surface of a jaw member.
  • a notched recess on or in the lower surface.
  • at least one boss member formed as a circular upstand on the upper surface which is adapted to be received in a matching aperture in the lower surface of the jaw member.
  • a locking ring for holding and locking slide members together and for speeding up the time to replace the jaw members and which is shaped as a circular ring having inwardly spaced protruding fingers and alignment locators wherein the fingers are positioned to when in use protruding into each aperture of each slide member and the locators provide lateral support by being located on an edge of the chuck body wherein as a chuck pinion socket is rotated via a key to move the jaw slide members outward, the four jaw slide members will simultaneously move outward and into the ring fingers depressing each jaw slide lock push pin 25 and simultaneously releasing all jaw members whereby while in this position new jaw members can be added and engaged by reversing the process.
  • each locator is located adjacent to a finger wherein there are four fingers and four locators.
  • each insert member is joined or connected to the jaw member by sliding engagement including the tongue member slidably inserted therein the curved groove of the jaw member.
  • each insert member is joined or connected to the jaw member by the insert member being fastened in attachment to the jaw member.
  • the insert member can be welded to the jaw member.
  • each jaw member is attached to a slide member is by sliding the male dovetail member of the jaw member or insert member into the female dovetail of the slide member.
  • the invention is said to reside in a method of assembly of the machine chuck coupling apparatus as mentioned in the fust aspect whereby there can be four jaw members 3 operatively connected to the spindle of the machine tool whereby each jaw member 3 with one insert 2 and slide member 1 form a chuck assembly, method of replacing the chuck assembly by following the steps of:
  • each slide member 1 is oriented in a radial direction to be located on the chuck body 3a to be operatively connected to the chuck body 3a so that rotation of a rotating means ie pinion socket 3 b is able to move each slide member 1 radially along the radial slots 3 c; 2.
  • Next assemble one insert member 2 with one jaw member 3 by slidably inserting each curved tongue member 37 of the insert member 2 into female dovetail slot 49 of the jaw member 1 to form a combined jaw member 3 and insert member 2 or alternatively fasten each insert member 60 to a jaw member 72;
  • step 2 of this method can be altered whereby an alternative insert member 60 is used for step 2 whereby instead of sliding to join the insert to the jaw member one needs to fasten the insert to the jaw member.
  • the invention is said to reside in a method of disassembly of the machine chuck coupling apparatus as mentioned in the first aspect whereby there can be four jaw members 3 operatively connected to the spindle of the machine tool whereby each jaw member 3 with one insert 2 and slide member 1 form the chuck assembly, method of disassembling the chuck assembly by following the steps of:
  • the invention in a fourth aspect is said to reside in a slide member for a machine chuck assembly, the slide member is a block shaped member having length commensurate with a radial axis of the chuck body and a width with side walls and end walls oriented at right to the length wherein there is a curved female dovetail slot 14 on an upper surface which extends from side wall to side wall of the slide member wherein the curved slot is a female dovetail slot.
  • the slide member includes at least one aperture extending from a front face to the curved groove in a trough which then ends in a curved recess at an opposite end, and locking means in the form of a push pin member with a vertical dowel pin which is biasedly and slidably held within the aperture such that in a relaxed position the dowel pin is located within the female dovetail slot 14 and when the push pin 25 is pushed the biased means is compressed to push the pin into the recess groove 23 and out of female dovetail slot 14 to allow the release of the insert member and or jaw member.
  • the slide member the front face is shaped having flat wall surface and the rear wall is rounded in an angular manner.
  • the sides of the slide member are formed having a centrally located ledge or shoulder which outwardly protrudes which are for holding and guiding each slide member to the chuck body.
  • the base of the slide member includes fins or grooves for sliding receipt of a screw mechanism that holds the slide member in place the chuck body and causes the slide member to be moved radially.
  • the invention in a fifth aspect is said to reside in a jaw member for a machine chuck assembly, the jaw member has a body shaped as a segment of a circle area having radial side edge walls and curved end walls, the body includes a planar member with an upper surface, lower surface bordered by side edge walls being radial oriented and curved end edge walls, wherein sliding means is provided on the lower surface which is formed as a male dovetail member.
  • male dovetail member is formed as at least a portion of the lower surface having male dovetail body with curved side walls and the male dovetail member is oriented such that the curved side walls are parallel to the curved end walls of the jaw member body and are oriented at right angles to the side walls of the body
  • Figure 1 is an upper perspective view in accordance with a first preferred embodiment of the invention with the locking ring in place.
  • Figure 2 is an upper perspective view of the chuck body showing the chuck apparatus with the locking ring in place
  • Figure 2A is a perspective view similar to figure 2 but with the spindle in place
  • Figure 2B is a front view relating to figure 2
  • Figure 2C is a top plan view relating to figure 2
  • Figure 3 is an upper perspective view of the chuck body showing the chuck apparatus without the locking ring and jaw members in place
  • Figure 3A is a front view relating to figure 3
  • Figure 3B is top plan view relating figure 3
  • Figure 3C is a top plan view with the locking ring
  • Figure 4 is a close up perspective view of the chuck head without the locking ring
  • Figure 5 is a top plan view of the chuck assembly of figure 4.
  • Figure 6 is an exploded perspective view of the chuck head and machine chuck coupling apparatus, with alternative insert members (2 & 60) and jaw members (3 & 72).
  • Figure 7 is an upper rear perspective view of one slide member.
  • Figure 7A is an upper front perspective view of the one slide member
  • Figure 8 is a first upper view of an insert member.
  • Figure 8A is a second upper perspective view of an insert member.
  • Figure 9 is a rear perspective view of one jaw member.
  • Figure 9 A is a front perspective view of one jaw member.
  • Figure 10 is a rear end view of one jaw and jaw slide
  • Figure 11 is a section BB along Line BB as located in figure 10
  • Figure 12 is a similar view to figure 5 but without the lock push pin 10
  • Figure 13 is a top plan view Section CC as located in figure 12.
  • Figure 14 is an upper perspective view of a jaw locking ring.
  • Figure 15 is a bottom perspective view of a second embodiment of the invention.
  • Figure 16 is rear end view similar to figure 10 but with a fastener insert in place
  • Figure 17 is Section DD of located on figure 16
  • Figure 18 is similar to figure 12 but without the curved groove in the jaw
  • Figure 19 is a top plan section View EE as located in figure 18.
  • the machine chuck coupling apparatus can be used on a machine tool such as a lathe.
  • the lathe is designed to rotate a workpiece about its own axis so that cutting, drilling, sanding, knurling or deformation operations can be carried out on the workpiece.
  • Lathes can be used for woodraming, metal working or metal spinning for both contraction or expansion modes.
  • Figures 1-14 show a first embodiment of the invention which is called a machine chuck coupling apparatus being in general cylindrically shaped having a circular cross section, which includes a jaw slide member 1, a jaw insert attaching member 2, and at least two jaw members 3 in sliding engagement there between to produce a fast push type lock mechanism per jaw member as a chuck assembly with no fasteners.
  • the j aw members 3 are designed to grab and hold a rotating workpiece on a chuck body 3 a which is movably supported by a spindle S of the lathe having a central axis.
  • the chuck body 3a has a chuck pinion socket 3b with a screw as a mechanism and comprising a spiral shaped grooved screw member operatively moved or rotated by a rotating means in the form of a hexagonal nut and actuating member like for example a key (not shown) whereby each slide member 1 is adapted to inter-fit with these grooves to enable the slide members to be moved for contraction or expansions modes.
  • the chuck body 3a has radial slots 3c adapted to receive each slide member 1.
  • the circular shape of the machine chuck coupling apparatus has a centrally located recessed space 6 designed to receive, grab and hold at least one work piece (not shown) therein.
  • the sliding engagement includes the insert member 2 being slidably joined to one jaw member 3 and jaw slide member 1 to produce a quick change jaw members with one easy push type lock mechanism per jaw member with no fasteners.
  • a front view can be defined as being that view of the apparatus looking at or facing the outer circular surface 5 and a rear view can be said to be that view taken when one is located in the recessed space 6 looking outwards.
  • Each jaw slide member 1 is shaped and designed to be slidably received by sliding means with the machine tool chuck body attached to spindle S and each jaw member 3 when combined with an insert member 2, is then slidably received by the sliding means and locking means into one jaw slide member 1.
  • a chuck assembly can include a jaw member, insert member, and slide member though other components as disclosed further in this specification are also necessary with certain shapes and orientation to make and enable the chuck assembly to function as required.
  • Each jaw slide member 1 is an elongate block shaped member having side walls 5a, end walls 7, upper surface 10 and lower surface 11.
  • Sides wall 5a are shaped having a ledge or shoulder 12 between an upper vertical side wall and lower side vertical wall.
  • the ledge 12 can be considered to be centrally located on side wall ' s 5a and is designed for sliding engagement and location with respect to similarly shaped radial slots 3 c in the chuck body 3b as shown in figure 1.
  • Side walls 5a are oriented parallel with radial axis 4.
  • One end wall can be called a 'front wall' which when the jaw slide member 1 is slidabely located into the chuck body, can be located close to the outer circulai" curved surface 5 and the other end wall when in use can be called a 'rear wall' which can be located close to but not beyond recessed space 6.
  • Jaw slide member 1 has a locking assembly whereby upper surface 10 includes a grooved slot or curved female dovetail slot 14 shaped as a wedge cross shape with inner angled walls 15 splaying downwardly to causing a narrow entrance which extends from one side wall to the other side wall and is curved in a horizontal plane being at right angles to the radial axis 4 thereby forming an upper extending front block 17 and rear block 19 with curved female dovetail slot 14 in between.
  • the front wall is shaped as a flat wall while the rear wall is rounded in an angled like manner.
  • Jaw slide members 1 are also provided with a pathway which includes at least one substantially horizontal (in use) tunnel 20 extending substantially parallel with the side walls 5a, and extending from the front end wall 7 through the front block 17 leading to a trough 22 and then leading to rear end wall 7 but not through the rear end wall but ending in a curved recess 23 in the rear block 19.
  • Trough 22 is located in the bottom or base of the female dovetail slot 14 while the curve recess 23 is located in part of the rear block 19.
  • Trough 22 can extend at least part of the base of female dovetail slot 14.
  • an elongate central lock push pin 25 having a peripheral spring 27 and vertical/upright dowel pin 26 extending or j oined from elongate central lock push pin eg to form an in use upside down T shaped member.
  • slide member 1 there are shown two vertical lines on either side of the centre line, these are just shown how the rear end wall 7 is shaped having angular rounded face.
  • Fins and grooves 29 are formed in the in use, lower surface 11 of each slide member 1 which are designed to slidably inter-fit with a grooved spiral path or pinion fitting movably attached with chuck body 3a whereby movement of the grooved spiral path by way of rotation of a hexagonal pinion socket 3b in chuck body 3a causes the or all slide members 1 to move radially inwards or outwards in a contraction or expansion mode to enable the jaw members 3 to move accordingly to grip or release a workpiece.
  • Each insert member 2 is shaped as a curved block like shaped member having an elongate body having a length and width with an upper surface 32 and lower surface 33, side walls 35 and end walls 36.
  • the length and overall shape of the insert member 2 is oriented and shaped to be parallel with shape of the curved female dovetail slot or groove 14 of the slide member 1 and outer curved wall surface 5.
  • Side walls 35 are planar sloped or angled walls which angle towards each at the upper surface whereas the end walls 36 can be substantially vertical.
  • the upper surface 32 is provided with a curved tongue member 37 which extends at least a portion of the length or from end wall to end wall 36 and extends upwardly from the upper surface 32 of the insert member 2 and is also oriented to be parallel the curve of the general shape of the insert .
  • Curved tongue member 37 has a substantially square cross section.
  • Angled side walls 35 with the lower surface 33 form a curved male dovetail member 38 having downwardly angled side walls.
  • a tapered locking groove 39 having a square cross section, in the lower surface 33 of the insert member 2 which is oriented in a direction substantially at right angles to the curve of the insert member 2 and extends from side wall 35 to side wall 35.
  • Each jaw member 3 is spaced from another jaw member 3 by a radial space 10 whereby each jaw member 3 is shaped as a segment of the circle shape being formed having a body with an in use upper surface 41 and lower surface 42.
  • Each segment has side edge walls 43 being oriented in a radial direction and abutting the recessed space 6, an inner curved end wall surface 44 to in use abut at least a portion of the workpiece and outer curved end walls 45 whereby each segment is a planar shaped body with a raised or upstanding curved ridge or rib member 47 on the upper surface 41 and a lower curved groove 49 on the lower surface 42 being parallel with the curved outer surface 5.
  • the upper curved ridge member 47 can be shaped having a profiled cross section with a thickened base portion and a head portion.
  • the lower curved groove 49 can have a square cross section.
  • locking ring 52 as seen in figures 1 and 8 for holding and all locldng slide members 1 together and for further speeding up the time for replacing the jaw members 2 and 72.
  • locking ring 52 is not required and can be left off or not.
  • locking ring 52 can be used to eliminate the individual depressing of each of the four push pins 25 while installing and removing the assembled j aw member and insert member though this is not essential to the working of the invention. If not using the ring, then one can individually push each push pin 45 to install and remove the jaw members and insert member.
  • Locking ring 52 is shaped as a circular ring of a certain diameter and thickness having inwardly directed, spaced ring bosses 54 in the form of radially protruding cantilevered fingers 54 and alignment locators 55 being located on an internal diameter of the locking ring 52.
  • the fingers 54 are positioned equally circumferentially, to when in use slide and then protrude into the aperture 20 of each jaw slide member 1.
  • the locators 55 comprise downwardly extending posts or bosses having a rectangular cross section to provide lateral support by being located on an edge side surface 5 of the spindle S as shown in figures 1 and 14. Each locator 55 is located adjacent to a finger 54 wherein there are four fingers 54 and four locators 55.
  • Chuck pinion 3b is rotated anticlockwise contracting the jaw members 3 (with insert members 2) to their most closed position with the locldng ring 52 located on the periphery of the chuck body 3a.
  • Chuck pinion 3b is rotated clockwise to expand the jaw members 3 to their maximum position so the locking ring's 52 protruding fingers or tabs 54 engage with and depress all the push pins 25 simultaneously, unlocking the assembled jaw members 3 or 72 with inserts members 2 and 60.
  • the assembled jaw members 3and 72 with insert members 2 and 60 can then be removed from the slide member 1 and replaced with a different set.
  • Chuck pinion 3b is rotated anticlockwise contracting the jaw members 3 in the chuck body 3b to allow the push pins 25 to expand to their locking position and securing the jaw assemblies (jaw member 3, insert member 2 and slide member 1). Locking ring 52 can then be removed.
  • the insert member 2 can be formed as an alternative insert member ie fastened insert member 60 having a planar block member with an upper surface 62, lower surface 63, end edge walls 65 and side edge walls 66.
  • the side edge walls 66 are angled side edge walls adapted to be slidably received by the curved groove 14 of the slide member 1.
  • One end edge wall 65 is curved and the other end edge wall is vertical wall.
  • fixing apertures 68 extending from the upper surface 62 to lower surface 63 and matching fixing apertures 70 in the planar body of an alternative jaw member 72 , to enable fasteners 73 therein to fasten the insert 60 to a lower surface 74 of jaw member 72.
  • one aperture and fastener 73 can be sized larger than the other to enable good fixing. Additionally the apertures and fasteners can be adapted to enable flush mounting by being countersunk as shown in figure 9.
  • Jaw member 72 has a similar shaped to jaw member 3 with a curved ridge member 47 on its in use upper surface when in use. .
  • Insert member 60 is proved with a notched recess 76 on or in the lower surface 74 of the jaws member 72 which functions similarly to the tapered locking groove 39 of the other insert member 2 as seen in figure 13.
  • boss member 78 formed as a circular upstand on the upper surface 62 of the insert member 60 which is adapted to be received in a matching aperture 79 in the lower surface 74 of the jaw member 72.
  • Insert member 2 and jaw slide member 1 have matched sliding means in the form of eccentrically curved dovetails.
  • Insert member 2 has the curved male dovetail member 37 and the jaw slide member 3 has the female dovetail 14.
  • the dovetails are wide at one side to a smaller at the opposing side which only allows for the insert member 2 to be inserted into the jaw slide member 1 from one side in one orientation only.
  • the dovetail profiles follow two arcs, the outer most of the two arcs is concentric to the radial axis 4 of the chuck body; this arc is the reference face for the insert.
  • the second, the innermost arc is eccentric to the outer arc; this is the wedging face.
  • the combination of these two dovetailed profiles enables the insert members 2 with jaw member 3 to lock tightly and locate concentrically with every instance of replacement.
  • the lock assembly resides inside the jaw slide member 1 with one end exposed to the user. It consists of central lock push pin 25, surrounding spring and the vertical dowel pin 26. The vertical dowel pin 26 protrudes through and above the base of the female dovetail slot 14 in the jaw slide member 1. Operatively lock push pin 25 is depressed into the jaw slide member 1, thus moving the lock assembly and vertical dowel pin 26 radially inward. This clears the female dovetail slot 14 in the jaw slide member 1 allowing the insert members 2 curved male dovetail member 38 to be inserted.
  • the lock assembly can be allowed extend back towards its original resting or relaxed position within the jaw slide member 1.
  • its vertical dowel pin 26 slots into the tapered locking groove 39 in the base of the insert member 2.
  • the locking groove 39 in the base of the insert member 2 is tapered to provide a mating surface for the vertical dowel pin 26 of the lock assembly which applies perpendicular force to the inserts tapered groove 23. This force holds the insert member 2 (with the jaw member) tightly in the female dovetail slot 14 in the jaw slide member 1 and the presence of the vertical dowel pin 26 in an exit path of the insert member 2 stops or prevents the insert member 2 with the jaw member, from coming out.
  • the tongue and groove location of the jaw member 72 with insert member 60 is secured by welding.
  • Tongue member 37 as located on top of insert member 2 is aligned and pressed into the curved groove 49 in the base of the jaw member 3 which can be permanently attached to each other via either welding, soldering or brazing the parts together on the sides of the insert member 2 in the groove 49.
  • boss 78 is located on the top of insert member 60 and is pressed into the alignment hole 79 in the base of the fastener type jaw member 72. The two are attached to each other via at least two fasteners 73.
  • M3 countersunk screw that resides in the base of the insert member 60 and the other larger fastener 73 usually M4 is also in the base of the insert member 60 but in out hanging section 65 in a trailing edge of the insert member 60 to accommodate its size.
  • each jaw member 3 with one insert 2 and slide member 1 form the machine chuck coupling apparatus.
  • a method of replacing or repairing the or at least part of the machine chuck coupling apparatus by first following an assembly method or a disassembly method by following steps of:
  • This method can be altered whereby an alternative insert member 60 is used for step 2 whereby instead of sliding to join the insert to the jaw member one needs to fasten the insert to the jaw member.
  • jaw member 4. radial axis
  • Biasing means eg spring
  • Notched recess (similar to curved recess 23)
  • Jaw diameter range is not limited
  • the slide member 1 can be fabricated integrally as a one piece item or it can be made up of parts that are jointed connected together.
  • the size and shape of the ledge or shoulder 12 can also be varied.
  • the insert member 2 or 60 can be formed separate or integrally with one jaw member 3 or 72. If formed separately the insert member can be joined or connected to the jaw member 3 or 72 by fastener(s) or by other means including welding or in combination. There can be more than one insert member 2 or 60 each insert member 2 or 60 can itself be made in parts. Also the shape of the insert member 2 or 60 can be varied such as for example can have vertical edges or rounded edges. The number of fasteners and apertures can also be varied.
  • the jaw members 3 or 72 can also be of different shapes for holding and gripping different types and size workpieces and be made up of components or be integrally formed. It will also be understood that where a product, method or process as herein described or claimed and that is sold incomplete, as individual components, or as a "kit of Parts", that such exploitation will fall within the ambit of the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

La présente invention concerne un appareil de couplage de mandrin de machine destiné à un corps de mandrin de machine comprenant au moins deux éléments coulissants mâchoires et au moins deux éléments mâchoires formant conjointement une forme circulaire ayant un rayon doté d'un axe radial et d'une surface incurvée périphérique externe comprenant un évidement interne central destiné à une pièce. Chaque élément mâchoire est fixé coulissant en dessous d'un élément coulissant mâchoire en s'engageant de manière coulissante selon un axe incurvé à angles droits par rapport à l'axe radial. Chaque élément coulissant est supporté de manière fonctionnelle en dessous du corps de mandrin de machine et relié coulissant selon une direction radiale à celui-ci, les éléments mâchoires étant conçus pour retenir au moins une pièce entre ceux-ci. L'entrée en contact de manière coulissante comprend la liaison coulissante d'un élément inséré à l'élément mâchoire et à l'élément coulissant de mâchoire afin de produire des éléments mâchoires à changement rapide à l'aide d'un mécanisme simple de verrouillage de type poussoir par élément mâchoire sans aucun élément de fixation. L'invention concerne également un autre élément mâchoire et l'élément inséré. L'invention concerne de plus un procédé de montage.
PCT/NZ2013/000212 2012-11-23 2013-11-21 Appareil de couplage de mandrin de machine Ceased WO2014081318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ603820 2012-11-23
NZ60382012 2012-11-23

Publications (1)

Publication Number Publication Date
WO2014081318A1 true WO2014081318A1 (fr) 2014-05-30

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PCT/NZ2013/000212 Ceased WO2014081318A1 (fr) 2012-11-23 2013-11-21 Appareil de couplage de mandrin de machine

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Cited By (8)

* Cited by examiner, † Cited by third party
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CN107900387A (zh) * 2017-11-14 2018-04-13 杭州万鼎实业有限公司 汽车轮毂外圈六等份卡钉夹具
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CN111590524A (zh) * 2020-06-11 2020-08-28 浙江德硕电器有限公司 多功能动力工具的头身快换结构及多功能动力工具
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CZ306522B6 (cs) * 2015-11-12 2017-02-22 Toshulin, A.S. Upínač, zejména pro upínání obrobků ve tvaru prstence
CN110636918A (zh) * 2017-05-10 2019-12-31 株式会社北川铁工所 夹头机构
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CN108555327A (zh) * 2018-07-25 2018-09-21 湖南省至壹机械工业有限公司 可防止工件装夹变形的机加夹具
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CN111590524A (zh) * 2020-06-11 2020-08-28 浙江德硕电器有限公司 多功能动力工具的头身快换结构及多功能动力工具
CN114985991A (zh) * 2022-05-26 2022-09-02 百森智能装备(广东)有限公司 夹持机构及激光切割机
CN116141196A (zh) * 2023-03-23 2023-05-23 浙江海德曼智能装备股份有限公司 一种分度齿盘磨削用的工装夹具

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