CN1903488A - Knives rack clamping unit for main shaft device - Google Patents
Knives rack clamping unit for main shaft device Download PDFInfo
- Publication number
- CN1903488A CN1903488A CNA2006100995602A CN200610099560A CN1903488A CN 1903488 A CN1903488 A CN 1903488A CN A2006100995602 A CNA2006100995602 A CN A2006100995602A CN 200610099560 A CN200610099560 A CN 200610099560A CN 1903488 A CN1903488 A CN 1903488A
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- China
- Prior art keywords
- tubular shell
- main shaft
- mentioned
- pull bar
- knives rack
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- 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
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
- B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
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- 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
- B23B31/026—Chucks the radial or angular position of the tool being adjustable
- B23B31/0261—Chucks the radial or angular position of the tool being adjustable for centering the tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/03—Clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/034—Drawbars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
Provided is a tool holder clamp unit for use in a machine tool, easily removed from the front of a main spindle. A clamp mechanism for clamping a pull stud part formed in a taper shank part of a tool holder is stored in a cylindrical case of this tool holder clamp unit. A drawing bar connected to a slider to perform an opening/closing operation of a clamp member of the clamp mechanism is projected to the outside from a rear end part of a cylindrical case. A belleville spring for always energizing the bar in a rear clamping direction is provided on an outer peripheral surface of the drawing bar. The clamp unit is mounted to be removable from the front of the main spindle in a through hole of the main spindle. A mechanism for preventing relative rotation is provided among junction end faces of the cylindrical cases, a storing hole of the cylindrical case, and a second engagement part of the drawing bar.
Description
Technical field
The present invention relates to a kind of knives rack clamping unit, it is used on the main shaft device of the lathe that various workpiece are processed.
Background technology
Usually, the main shaft device of lathe, the supports main shaft rotatably in the inside of main spindle box, and the clamp mechanism that the clamp-on tool support is installed at the leading section of this main shaft.In the through hole of main shaft, accommodate pull bar, this pull bar carries out the clamping action of above-mentioned clamp mechanism or unclamps action, and integrally formed spring-loaded parts of the pars intermedia outer peripheral face of above-mentioned pull bar and between the stage portion that the inner peripheral surface of the through hole of main shaft forms, insert the disk spring of above-mentioned pull bar with stacked state to the clamping direction pretension.And, utilize the clamping cancel system be arranged on main spindle box one side, make above-mentioned pull bar resist the pretightning force of disk spring and move to axial the place ahead, remove thus by the clamped condition of clamp mechanism knives rack.(with reference to patent documentation 1)
Patent documentation 1: the spy opens flat 1-135403 communique
Summary of the invention
But, there are the following problems for the main shaft device of above-mentioned existing machine tool, because the front end face of above-mentioned disk spring is blocked only on the stage portion of main shaft one side, so under the situation of the maintenance test of the pre-tightening mechanism that carries out constituting or fault repair by clamp mechanism and disk spring, it need be unloaded from the main shaft rear portion, operation is trouble very.
In addition, existing main shaft device in order to prevent the relatively rotating of pull bar in the main shaft, adopts following structure: insert the spline pin to main shaft, and make leading section to the side-prominent spline pin of the through hole one of main shaft, engage with gathering sill on the leading section outer peripheral face that is formed at above-mentioned pull bar.Therefore, there are the following problems for it, under the situation that pull bar is taken out from the through hole of main shaft, after main shaft is unloaded from main spindle box, must unload above-mentioned spline pin, and maintenance test and reconditioning work bother very much.
The invention provides a kind of knives rack clamping unit that is used for lathe, it can eliminate the problem points that exists in above-mentioned known technology, clamp mechanism, pre-tightening mechanism and pull bar easily can be unloaded from main shaft the place ahead together, improves the operation of maintenance.
In order to address the above problem, technical scheme 1 described invention, it is a kind of knives rack clamping unit that in main shaft device, uses, its mode unloading, be installed in the axis hole on the main shaft that is formed at main shaft device, has the tubular shell inside that is installed in the flange part on the above-mentioned front-end of spindle face by bolt, the clamp mechanism of clamp-on tool support is set, rearward end with respect to described tubular shell, with can be in the prescribed stroke scope reciprocating mode, connection clamps action or unclamps the pull bar of action described clamp mechanism, between described tubular shell and described pull bar, the rotation in relative rotation that stops two parts is set stops parts, at the rear end face of described tubular shell be installed between the spring-loaded parts of described back end of tie rod portion, insert and be used for the pretension parts of described pull bar to the clamping direction pretension.
Technical scheme 2 described inventions, be at the technical scheme 1 described knives rack clamping unit that is used for main shaft device, stoping the prevention of the rotation in relative rotation parts of described tubular shell and pull bar is following structure, promptly, in the rotation blocking portion on the rearward end inner peripheral surface that is formed at this tubular shell, the rotation blocking portion near the outer peripheral face the chimeric leading section that is formed at described pull bar.
Technical scheme 3 described inventions, be at technical scheme 1 or the 2 described knives rack clamping units that are used for main shaft device, described tubular shell is on the pars intermedia of its axis direction, be divided into a plurality of tubular shell sheets, on the jointing end face of each tubular shell sheet, be provided with and stop that the rotation of sag and swell in relative rotation stops parts between the tubular shell sheet.
Technical scheme 4 described inventions, it is any described knives rack clamping unit that is used for main shaft device in technical scheme 1 to 3, inside at described tubular shell, with can be in the prescribed stroke scope reciprocating mode, accommodate the slide block that constitutes described clamp mechanism, rearward end at described slide block forms the shaft hub that periphery has protuberance, leading section at described pull bar forms the patchhole that inserts described shaft hub, and the gathering sill that protuberance is led, form at the pars intermedia of described patchhole and can block the card that ends described protuberance and end recess, by pull bar and slide block are relatively rotated, pull bar is connected in irremovable mode on direction of principal axis with slide block.
Technical scheme 5 described inventions can be provided with two parts of prevention and rotate the prevention parts in relative rotation between described tubular shell and slide block.
The effect of invention
According to technical scheme 1 to 4 described invention, inside at tubular shell, setting has the clamp mechanism that is installed in the clamping tool support of the flange part on the front-end of spindle face by bolt, rearward end with respect to aforementioned tubular shell, with can be in the prescribed stroke scope reciprocating mode, connect above-mentioned clamp mechanism clamped action or unclamps the pull bar of action.Therefore, by through hole,, can take out clamp mechanism, pull bar and pre-tightening mechanism together from main shaft the place ahead loading and unloading knives rack clamping unit integral body with respect to main shaft.In addition, when extracting knives rack clamping unit, can be easily judge the state of pre-tightening mechanism or its abnormal state of affairs etc. from the outside.Based on these reasons, can easily carry out maintenance test.
In addition, technical scheme 1 described invention stops the parts in relative rotation of the pull bar in the main shaft to separate with main shaft by making, and is arranged between above-mentioned tubular shell and the pull bar, can knives rack clamping unit integral body easily be unloaded from main shaft the place ahead with respect to the through hole of main shaft.In addition, the pretension parts are exposed from the outer peripheral face of pull bar, can easily carry out the maintenance test or the repairing of pretension parts.
Technical scheme 2 described inventions can stop mechanism by simple the rotation, stop relatively rotating between tubular shell and the pull bar.
Technical scheme 3 described inventions can stop mechanism by simple the rotation, stop relatively rotating between a plurality of tubular shell sheets.
Technical scheme 4 described inventions can utilize simple package assembly, in the inside of tubular shell assembling clamp mechanism.
Description of drawings
Fig. 1 is the central portion profilograph of the main shaft device of expression lathe of the present invention.
Fig. 2 is the central portion profilograph of main shaft device that the state of knives rack clamping unit is unloaded in expression.
Fig. 3 is the central portion profilograph of the clamped condition of expression knives rack clamping unit.
Fig. 4 is the central portion profilograph of the releasing orientation of expression knives rack clamping unit.
Fig. 5 is the separation stereogram of tubular shell, slide block, tubular shell and pull bar.
Fig. 6 (a) and (b), (c) are respectively 1-1 line, 2-2 line, the 3-3 line profiles of Fig. 3.
Fig. 7 is the central portion profilograph of clamped condition of the knives rack clamping unit of expression the present invention another embodiment.
Fig. 8 is the central portion profilograph of the releasing orientation of expression knives rack clamping unit shown in Figure 7.
Fig. 9 is the central portion profilograph of clamped condition of the knives rack clamping unit of expression the present invention another embodiment.
Figure 10 is the central portion profilograph of the releasing orientation of expression knives rack clamping unit shown in Figure 9.
The specific embodiment
Below, according to Fig. 1～Fig. 6, an embodiment of the main shaft device that uses that the present invention is specialized is described in lathe.
As shown in Figure 1, the main spindle box 12 of main shaft device 11 is made of urceolus 13 and inner core 14, and in the inboard of this inner core 14, main shaft 15 is supported on the assigned position in rotatable mode by a plurality of bearings 16.Rearward end at the urceolus 13 of above-mentioned main spindle box 12 is installed motor 18, and its rotating shaft 19 connects the rearward end of above-mentioned main shaft 15 by shaft coupling 20, by the rotation of rotating shaft 19, makes main shaft 15 rotations via shaft coupling 20.
As shown in Figure 2, central part at main shaft 15 forms through hole 151, it is used for embedding removably knives rack clamping unit 22 described later, and at the front end face formation many places of main shaft 15 screwed hole 152, it is used for knives rack clamping unit 22 is fixed on main shaft.As shown in Figure 2, the generation type of the diameter dimension of the through hole 151 of the above-mentioned knives rack clamping unit 22 of the embedding of above-mentioned main shaft 15 is, along with from front end (left end of Fig. 2) to the rear end (right-hand member of Fig. 2) and diminish step by step.
Knives rack 21 shown in Figure 3 is so-called BT supports.On the leading section that is horizontal tubular shell cylindraceous 23 (left end of Fig. 3) that constitutes this knives rack clamping unit 22, form the cutter installing hole 231 of the taper shank portion 211 that embeds above-mentioned knives rack 21, form flange part 232 in the leading section periphery.On this flange part 232, form bolt holes 233 at a plurality of positions, as shown in Figure 1, by with bolt 24 from bolt hole 233 is screwed on above-mentioned screwed hole 152 on the front end face that is formed at main shaft 15, and tubular shell 23 is fixed on the main shaft 15.
Accommodate clamp mechanism 25 in the inside of above-mentioned tubular shell 23, this clamp mechanism 25 is by pulling to the rear with engaging at the outstanding blind rivet 212 that forms of the leading section of the taper shank portion 211 of above-mentioned knives rack 21, and above-mentioned knives rack 21 will be clamped on the assigned position in the cutter installing hole 231 of tubular shell 23 thereby will insert.To 25 explanations of this clamp mechanism, on the inner peripheral surface 234 of the rearward end of above-mentioned tubular shell 23 so that its can be in the predetermined stroke scope reciprocating vertically mode, insert the slide block 26 that the axle core has coolant channels 261.At the leading section of this slide block 26, the clamping part that describes in detail later 27 is by connecting spring 28, is connected to each other and engages in the mobile mode that can tilt back and forth at the radial direction of tubular shell 23.
On the rearward end of above-mentioned tubular shell 23, engage and be horizontal tubular shell cylindraceous 31.On the rearward end of above-mentioned slide block 26, form propeller boss 262, on its outer peripheral face, as shown in Figure 5, at circumferencial direction across predetermined distance and form two place's protuberances 263, forwards at interval on the position of predetermined distance, forming ring-type raised line 264 from this protuberance 263.Connect the leading section that central part has the pull bar 36 of coolant channels 361 on the above-mentioned shaft hub 262.On the jointing end face 311 of the front end of above-mentioned tubular shell 31, form recess 312, this recess 312 is used to be embedded in the protuberance 239 that forms on the jointing end face 238 of rear end of above-mentioned tubular shell 23, embed in recess 312 under the state of protuberance 239, tubular shell 23 and tubular shell 31 engage (with reference to Fig. 6 (a)) in mode in relative rotation.In the present embodiment, constitute rotation by raised part 239 and recess 312 and stop parts, it stops relatively rotating of tubular shell 23 and tubular shell 31.
On the leading section of above-mentioned pull bar 36, as shown in Figure 5, form the 1st holding section 362 of major diameter size, this holding section 362 is embedded in the accepting hole 313 of the major diameter size that forms on the above-mentioned tubular shell 31, on the rear end face of the 1st holding section 362, form the 2nd holding section 363, these holding section 363 diameter dimensions are less than the 1st holding section 362 and be embedded on the above-mentioned tubular shell 31 in the accepting hole 314 that forms.Form on the 2nd holding section 363 as the pair of planar 364,364 of rotating blocking portion, they are chimeric with the pair of planar 315,315 that blocking portion is rotated in the conduct on the accepting hole 314 that is formed on above-mentioned tubular shell 31.And, if with respect to tubular shell among Fig. 5 31, insert pull bar 36 from jointing end face 311 1 sides, the plane 364,364 of then above-mentioned the 2nd holding section 363 cooperates with 315,315 planes, plane of accepting hole 314 and is chimeric, stops relatively rotate (with reference to Fig. 6 (b)) of tubular shell 31 and pull bar 36 thus.In the present embodiment, utilize the plane 315,315 of accepting hole 314 of above-mentioned tubular shell 31 and the plane 364,364 of above-mentioned the 2nd holding section 363, constitute the rotation in relative rotation that stops tubular shell 31 and pull bar 36 and stop parts.
In above-mentioned the 1st holding section 362 and the 2nd holding section 363, formation can be inserted the patchhole 365 of above-mentioned shaft hub 262, two local gathering sills 366 that form on the inner peripheral surface of this patchhole 365, this gathering sill 366 is used for leading in the axial direction and moves the protuberance 263 of above-mentioned shaft hub 262, on the inner end of this gathering sill 366,366, be formed for the card that card ends raised part 263 and end recess 367.Thereby, from the patchhole 365 of above-mentioned pull bar 36 and the shaft hub 262 and the protuberance 263,263 of gathering sill 366 insertion slide blocks 26, protuberance 263,263 is moved to the inside that card ends protuberance 367, and, under the front end face state of contact of ring-type raised line 264 and the 1st holding section 362, by slide block 26 is rotated 90 °, make slide block 26 be connected (with reference to Fig. 6 (c)) in the mode that can not relatively move in the axial direction with pull bar 36.
As shown in Figure 3, on the outer peripheral face of above-mentioned slide block 26, form the gathering sill 265 with axially parallel,, be installed on the assigned position on the inner peripheral surface 234 of above-mentioned tubular shell 23 embedding scotch 32 in the above-mentioned gathering sill 265 by Screw 33.By Screw 35, scotch 34 is installed on the leading section of above-mentioned gathering sill 265.And, under the connection status of Fig. 6 (c),, allow slide block 26 moving vertically in the inner peripheral surface 234 of above-mentioned tubular shell 32 by above-mentioned gathering sill 265 and scotch 32, stop relatively rotating of tubular shell 23 and slide block 26.In the present embodiment, by the gathering sill 265 of above-mentioned slide block 26 be installed in scotch 32 in the above-mentioned tubular shell 23, constitute the rotation in relative rotation that stops tubular shell 23 and slide block 26 and stop parts.
With the outer peripheral face of the operation tube portion 266 of the integrally formed minor diameter of the leading section of above-mentioned slide block 26 on, on former and later two positions, form annular convex 267 across predetermined distance.On the other hand, at the inboard integrally formed clamp jaw 271 of the leading section of above-mentioned clamping part 27, on central portion, the mode with corresponding with the annular convex 267 of above-mentioned slide block 26 forms recess 272 on two positions.In addition, on the inner peripheral surface 234 of above-mentioned tubular shell 23, in the mode corresponding with the locking protrusion that forms in the outside of above-mentioned clamping part 27 273, form stage portion 235, simultaneously, mode with corresponding with the locking protrusion that forms in the rearward end of above-mentioned clamping part 27 outside 274 forms stage portion 236.
In the coolant channels 261 of the central part that is formed at above-mentioned slide block 26, with can reciprocating vertically mode, insertion has the cooling fluid supply nozzle 38 of coolant channels 381, by on the stage portion 268 on the inner peripheral surface of the coolant channels 261 that is formed at above-mentioned slide block 26, card only is integrally formed in the large-diameter portion 382 on the outer peripheral face of base end part of cooling fluid supply nozzle 38, makes cooling fluid supply nozzle 38 can not extract to axial the place ahead.At the rear end face of above-mentioned cooling fluid supply nozzle 38 be formed between the stage portion of centre of coolant channels 261 of above-mentioned slide block 26, insert helical spring 39, to keep pretension cooling fluid supply nozzle 38 forwards.Thus, the front end face of cooling fluid supply nozzle 38 is urged on the open rearward end that is formed at the coolant channels 213 on the knives rack 21, thereby can supply with cooling fluid to the central portion of knives rack 21 from the coolant channels 361 of pull bar 36, by coolant channels 261 and coolant channels 381 etc.
On the rear end face outer peripheral face of above-mentioned pull bar 36, form external thread part 368, on this external thread part 368, screw togather spring-loaded parts 41,, connect in mode in relative rotation by bolt 42.Between above-mentioned tubular shell 31 and spring-loaded parts 41,, multi-disc disk spring 43 is installed as the pretension parts with state stacked on direction of principal axis.In the rearward end of pull bar 36, form the connecting hole 369 of diameter greater than above-mentioned coolant channels 361.
In the present embodiment, by above-mentioned tubular shell 31, pull bar 36, spring-loaded parts 41 and disk spring 43 etc., constitute pre-tightening mechanism 44, it is used for the slide block 26 of the clamping part 27 of pretension clamp mechanism 25, makes it become clamped condition.
Fig. 3 represents clamped condition, this state is to utilize disk spring 43 that above-mentioned slide block 26 is rearward moved, clamping part 27 utilizes operation tube portion 266 and annular projection 267 and rearward mobile, and by clamping part 27, knives rack 21 is pulled to the rear by blind rivet 212.Under this state, the annular projection 267 of above-mentioned slide block 26 is extracted from the recess 272 of above-mentioned clamping part 27 and is crossed teat, each clamp jaw 271 is shifted to closing direction, each clamp jaw 271 is ended by blind rivet 212 cards of knives rack 21, locking protrusion 273 is crossed the stage portion 235 of tubular shell 23, and then, become above-mentioned locking protrusion 274 and stage portion 236 cards state only.
Under this state, if utilize clamping cancel system 50 described later, make above-mentioned pull bar 36 resist the pretightning force of disk spring 43 and forwards mobile, the annular projection 267 of then above-mentioned slide block 26 embeds in the recess 272 of clamping part 27, simultaneously, utilize the rear end face of front end face pushing clamping part 27 of the large-diameter portion of slide block 26, clamping part 27 as shown in Figure 4, when forwards moving, open, be displaced to the position of the clamped condition of removing knives rack 21.
Below, describe clamping cancel system 50, as shown in Figure 1, it is installed in above-mentioned main spindle box 12 1 sides, the pull bar 36 of above-mentioned knives rack clamping unit 22 is forwards moved, to remove the clamped condition of clamp mechanism 25.
As shown in Figure 1, in the through hole 151 of above-mentioned main shaft 15, the mode so that the rear end face with above-mentioned spring-loaded parts 41 contacts can move back and forth ground housing action parts 51 vertically, on this action component 51, in being formed at the through hole 511 that directly makes progress, run through fixing action pin 52.On above-mentioned main shaft 15, so that the both ends of above-mentioned action pin 52 are outstanding to the outside, and the feasible pin 52 interior reciprocating mode of prescribed stroke scope in the axial direction of moving, on two positions, form guide through hole 154.Corresponding to this action pin 52, between the outer peripheral face of the rearward end inner peripheral surface 131 of above-mentioned urceolus 13 and above-mentioned main shaft 15, so that it can accommodate piston 53 in reciprocating mode in the axial predetermined stroke scope.On the rearward end of above-mentioned urceolus 13, the position limit collar 54 of piston 53 is installed.
Below, the cooling fluid feed path that is used for supplying with from the open rearward end of the coolant channels 361 of above-mentioned rotating shaft 19 1 side direction pull bars 36 cooling fluid is described.
In the present embodiment, constitute cooling fluid feed path 64 by coolant channels 611,621,361 and coolant channels 381 etc., it is used for supplying with cooling fluid to the coolant channels 213 of knives rack 21.
In addition, as shown in Figure 1, top cover 71 is installed on the front end face of above-mentioned main spindle box 12.
Below, the action of the main shaft device that constitutes in the above described manner is described.
Fig. 1 represents following state,, inserts incorporate knives rack clamping unit 22 shown in Figure 3 in the through hole 151 of main shaft 15 that is, utilizes bolt 24, and the flange part 232 that makes tubular shell 23 screws togather and installs and fixes with the screwed hole 152 of the front end face of main shaft 15.In addition, the knives rack 21 that is installed on this main shaft 15 utilizes the clamp mechanism 25 in the knives rack clamping unit 22 clamped, the leading section of cooling fluid supply pipe 61 embeds in the connecting hole 369 of the rearward end that is combined in pull bar 36, simultaneously, become the front end face state of contact of rear end face with the action component 51 that clamps cancel system 50 of spring-loaded parts 41.And above-mentioned clamp mechanism 25 keeps clamped condition, clamps cancel system 50 and keeps non-disarm state.
Under this state, if make main shaft 15 rotations by the rotating shaft 19 of motor 18 via shaft coupling 20, then knives rack clamping unit 22 and knives rack 21 rotate with cutter, and the workpiece that is supported on the not shown platen is processed operation.
In the process of this workpiece, via above-mentioned cooling fluid feed path 64, supply with cooling fluid to the coolant channels 213 of knives rack 21, carry out the lubricated and cooling that workpiece adds the Ministry of worker.
After the process finishing of workpiece, under the situation of releasing by the clamping of 25 pairs of knives racks 21 of clamp mechanism of knives rack clamping unit 22, the piston 53 that clamps cancel system 50 moves to the place ahead of Fig. 1, move to this direction by piston 53, utilize piston 53 that action component 51 and action pin 52 are forwards moved.Utilize this action component 51 moving forwards, the spring-loaded parts 41 of knives rack clamping unit 22 1 sides forwards move, the pretightning force that pull bar 36 is resisted disk spring 43 forwards moves, and removes above-mentioned clamped condition by 25 pairs of knives racks 21 of clamp mechanism.Under this state,, knives rack 21 is replaced by other knives rack 21 by not shown machine tool apparatus for automatic change.
On the other hand, under the situation of the maintenance test of carrying out knives rack clamping unit 22 or maintenance, unload knives rack 21 from the cutter installing hole 231 of knives rack clamping unit 22.Under this state, utilize disk spring 43, clamp mechanism 25 becomes empty clamped condition.Under this state, pull down bolt 24.Then, extract knives rack clamping unit 22 to main shaft the place ahead, the knives rack clamping unit under the state shown in Figure 3 22 is taken out to the outside of main shaft 15 through holes 151 by through hole 151 from main shaft 15.
According to the main shaft device of above-mentioned embodiment, can obtain following effect.
(1) in the above-described embodiment, as shown in Figure 3, at the chimeric fixing spring support unit 41 of rearward end of the pull bar 36 of knives rack clamping unit 22, between tubular shell 31 and spring-loaded parts 41, insert the disk spring 43 that to be used for above-mentioned clamp mechanism 25 pretensions be clamped condition.And, whole clamp mechanism 25 and pre-tightening mechanism 44 are installed in knives rack clamping unit 22 1 sides.Therefore, front one side of knives rack clamping unit 22 integral body from main shaft 15 can be embedded in the through hole 151 of this main shaft 15, perhaps it is pulled down, clamp mechanism 25 and pre-tightening mechanism 44 are also pulled down integratedly, thereby can easily carry out maintenance, inspection or the repairing of clamp mechanism 25, pull bar 36 and pre-tightening mechanism 44, improve the operation of maintenance.Promptly, for the replacing of disk spring 43, do not had to pull down the trouble that other parts are operated, wherever from rear one side of main shaft device, can unload or install disk spring 43 simply by the knives rack clamping unit 22 of the state that takes out from the place ahead of main shaft 15.
(2) in the above-described embodiment, owing to being installed in knives rack clamping unit 22 1 sides, clamp mechanism 25, pull bar 36 and pre-tightening mechanism 44 make it blocking, so also can be not on the inner peripheral surface of the through hole 151 of main shaft 15, do not form the flange shape stage portion of front end that card ends the disk spring 43 of pre-tightening mechanism 44.Therefore, can form the aperture size of through hole 151 of main shaft 15 along with the structure that diminishes to the back-end and step by step from front end.Thereby the processing operation of only carrying out the through hole 151 of machining spindle 15 from axial the place ahead of main shaft 15 gets final product, and can improve the processing efficiency of operation.
(3) in the above-described embodiment, have following structure, that is, and with respect to the rear end face of above-mentioned tubular shell 23, be close to the front end face of another tubular shell 31, utilize protuberance 239 and recess 312, stop relatively rotating of tubular shell 23 and tubular shell 31, simultaneously, plane 315 with respect to the accepting hole 314 of above-mentioned tubular shell 31, the plane 364 of the 2nd holding section 363 of pull bar 36 plane with it cooperates and chimeric, thus, stops relatively rotating of tubular shell 31 and pull bar 36.In addition, embed in the gathering sill 265 that is formed on the above-mentioned slide block 26, stoped relatively rotating of above-mentioned tubular shell 23 and slide block 26 by the scotch 32 that will be installed on the tubular shell 23.Therefore, because can not slide block 26, tubular shell 31 and pull bar 36 being installed relative to the mode that tubular shell 23 rotates, so can in the rotary course of main shaft 15, make above-mentioned each parts keep stable, under the state that main shaft 15 stops, can successfully carrying out the clamping action of knives rack 21 or unclamp action simultaneously.
Below, according to Fig. 7 and Fig. 8 another embodiment of the present invention is described.
In the present embodiment, corresponding to the knives rack 21 different with the employed knives rack of above-mentioned embodiment 21, the cutter installing hole 231 of knives rack clamping unit 22 and clamp mechanism 25 are different from the structure of above-mentioned embodiment, in addition other structure, since identical with above-mentioned embodiment, so omit its explanation.
The knives rack 21 that uses in the present embodiment is so-called HSK supports, shown in the double dot dash line of Fig. 7 and Fig. 8, its taper shank portion 211 forms the cavity of rear aperture, is the two sides restricted type support that utilizes the rear end face of the cradle portion in the periphery tapering of taper shank portion 211 and its place ahead to carry out the position restriction.
The external thread part 269 that forms on the leading section of above-mentioned slide block 26 screws togather with the screwed hole 811 that forms on the inner peripheral surface that is horizontal operation tube 81 cylindraceous.A plurality of clamping parts 82 contact with the outer peripheral face of aforesaid operations tube 81, the front edge 821 of each clamping part 82, in the mode of the stage portion 812 that can cross the outer peripheral face that is formed at aforesaid operations tube 81 near configuration.The back edge 813 of aforesaid operations tube 81, in the mode of the stage portion 822 that can cross the tab-like rearward end inboard that is formed in above-mentioned clamping part 82 near configuration.On the front end outer ledge of above-mentioned clamping part 82, formation can end the clamp jaw 823 that stage portion 214 cards end with card, and it is outstanding formation on the inner peripheral surface of the taper shank portion 211 of above-mentioned knives rack 21 that this card ends stage portion 214.On the rear end face of above-mentioned clamping part 82, form inclined plane 824, in the mode corresponding with this inclined-plane 824, inside at above-mentioned tubular shell 23, can accommodate guide cylinder 83, the guiding surface 831 that forms on the front end face of this guide cylinder 83 contacts with above-mentioned inclined plane 824 in the mode that can slide with moving back and forth vertically.Insert spring 85 between spring-loaded parts 84 and above-mentioned guide cylinder 83, these spring-loaded parts 84 are ended on the stage portion 237 on the inner peripheral surface 234 that is formed at tubular shell 23 by card.The guiding surface 825 that forms in the outside of above-mentioned clamping part 82 in the mode that can slide, contacts with the guiding surface 240 that forms on the inner peripheral surface 234 of above-mentioned tubular shell 23.
Connecting cylinder 86 is installed on above-mentioned knives rack 21, this connecting cylinder 86 has the coolant channels 861 that is communicated with above-mentioned coolant channels 213, when main shaft 15 is installed, its leading section embeds by seal and is combined in the coolant channels 814 of the central part that is formed at aforesaid operations tube 81, can supply with cooling fluid.
Below, action is removed in the clamping of knives rack 21 described.
The state that Fig. 7 represents is as follows, utilize disk spring 43, above-mentioned slide block 26, pull bar 36 and operation tube 81 rearward (Fig. 7's is right-hand) move, the front edge 821 of clamping part 82 is crossed the stage portion 812 of operation tube 81, the stage portion 822 that the back edge 813 of operation tube 81 is crossed clamping part 82, above-mentioned clamping part 82 moves to the radial outside of operation tube 81, clamp jaw 824 is ended stage portion 214 cards by the card of knives rack 21 and ends, draw in knives rack 21, become the clamped condition of the knives rack 21 that the rear end face that makes cradle portion and the front end face of tubular shell 23 closely contact.Under this state, the guiding surface 831 of above-mentioned guide cylinder 83 rearward moves by the inclined plane 824 of clamping part 82, becomes the state of compression spring 85.
Under this state, if pull bar 36 and spring-loaded parts 41 forwards move with respect to tubular shell 23 and tubular shell 31, then the operation tube 81 that is connected with the leading section of slide block 26 forwards moves as shown in Figure 8, the stage portion 812 of operation tube 81 moves to the direction of separating with the front edge 821 of clamping part 82, utilize spring 85, guide cylinder 83 forwards moves, utilize the inclined plane 824 of guiding surface 831 pushing clamping parts 82, thus, clamping part 82 is to the radial direction medial movement of operation tube 81.Therefore, the back edge 813 of operation tube 81 moves to the direction of separating with stage portion 822, as shown in Figure 8, removes the clamped condition by 82 pairs of knives racks 21 of clamping part.
In addition, the action of clamp-on tool support 21 is carried out with the order opposite with clamping the releasing action.
Above-mentioned embodiment also can obtain and the identical effect of effect of described embodiment before.
Below, according to Fig. 9 and Figure 10, another embodiment of the invention is described.
Present embodiment corresponding to all different knives rack 21 of the employed knives rack 21 of above-mentioned two embodiments, the cutter installing hole 231 of knives rack clamping unit 22 and the embodiment of clamp mechanism 25, different with the structure of above-mentioned embodiment, because other structure in addition is identical with above-mentioned embodiment, so omit its explanation.
The employed knives rack 21 of present embodiment is so-called KM supports, shown in the double dot dash line of Fig. 9 and Figure 10, form the cavity of rear aperture in its taper shank portion 211, it is the two sides restricted type support that utilizes the rear end face of the cradle portion in the periphery tapering of taper shank portion 211 and its place ahead to carry out the position restriction, but on the inner peripheral surface of taper shank portion 211, on its circumferencial direction, become the stop hole 215 of two positions to the outer peripheral face breakthrough form.
As shown in Figure 9, on the front end face of above-mentioned slide block 26, form operating portion 270, on its outer peripheral face, be formed for engaging the engaging recessed part 87 of spheroid 92, near the place ahead of engaging recessed part 87 (left of Fig. 9), form the guiding surface 88 that links to each other with this engaging recessed part 87 simultaneously.On the inner peripheral surface of above-mentioned tubular shell 23, the spheroid fixator 91 with through hole 911 embeds and is fixed on the assigned position.At leading section, on 2 positions, form and to block the only stop hole 912 of spheroid 92 near this spheroid fixator 91.In the stop hole 215 of above-mentioned knives rack 21, embed above-mentioned spheroid 92.
Below, action is removed in the clamping of knives rack 21 described.
The clamped condition of the knives rack 21 that Fig. 9 represents is, pull bar 36 and spring-loaded parts 41 utilize disk spring 43 and rearward move, slide block 26 and operating portion 270 thereof rearward move, utilize the guiding surface 88 of operating portion 270, spheroid 92 in stop hole 912 outside the radial direction of spheroid fixator 91 side shifting, spheroid 92 also embeds in the stop hole 215, draws in knives rack 21 by spheroid 92, thereby the rear end face of cradle portion and the front end face of tubular shell 23 are adjacent to.Under this state, if the pretightning force that above-mentioned pull bar 36 and spring-loaded parts 41 are resisted disk spring 43, forwards move with respect to above-mentioned tubular shell 23 and tubular shell 31, then as shown in figure 10, because slide block 26 and operating portion 270 thereof forwards move, the guiding surface 88 of operating portion 270 forwards moves, so engaging recessed part 87 is corresponding with spheroid 92, spheroid 92 is directed to stop hole 912 from stop hole 215, engages with engaging recessed part 87.Therefore, as shown in figure 10, remove the clamped condition of knives rack 21.
In addition, carry out the action of clamp-on tool support 21 with the order opposite with clamping contact action.
The knives rack clamping unit 22 of above-mentioned embodiment also has the effect identical with the knives rack clamping unit 22 of the embodiment that utilizes Fig. 1 to illustrate.
But, in main shaft device shown in Figure 1, change under the situation of Fig. 7 or clamping mode shown in Figure 9, only change knives rack and get final product, can make other parts generalization.Main shaft device of the present invention under the situation of making the different lathe of clamping mode, because can make knives rack clamping unit 22 parts generalization in addition, therefore can be cut down manufacturing expense.
In addition, above-mentioned embodiment also can as followsly change.
Zero can replace disk spring 43, uses helical spring or other pretension parts.
Zero can suitably change the structure of clamp mechanism 25.
Zero can suitably change the structure of pre-tightening mechanism 44.
Zero can omit above-mentioned cooling fluid feed path 64.
Zero can use the rotation blocking portion outside the plane 364 of the plane 315 of above-mentioned tubular shell 31 and pull bar 36.
Claims (5)
1. knives rack clamping unit that is used for main shaft device, its mode unloading is installed in the axis hole on the main shaft that is formed at main shaft device, it is characterized in that,
Has the tubular shell inside that is installed in the flange part on the above-mentioned front-end of spindle face by bolt, the clamp mechanism of clamp-on tool support is set, rearward end with respect to described tubular shell, with can be in the prescribed stroke scope reciprocating mode, connection clamps action or unclamps the pull bar of action described clamp mechanism, between described tubular shell and described pull bar, the rotation in relative rotation that stops two parts is set stops parts, at the rear end face of described tubular shell be installed between the spring-loaded parts of described back end of tie rod portion, insert and be used for the pretension parts of described pull bar to the clamping direction pretension.
2. the knives rack clamping unit that is used for main shaft device as claimed in claim 1 is characterized in that,
Stoping the prevention of the rotation in relative rotation parts of described tubular shell and pull bar is following structure, promptly, with respect to the rotation blocking portion on the rearward end inner peripheral surface that is formed at this tubular shell, the rotation blocking portion near the outer peripheral face the chimeric leading section that is formed at described pull bar.
3. the knives rack clamping unit that is used for main shaft device as claimed in claim 2 is characterized in that,
Described tubular shell is divided into a plurality of tubular shell sheets at the pars intermedia of its axis direction, on the jointing end face of each tubular shell sheet, is provided with and stops that the rotation of sag and swell in relative rotation stops parts between the tubular shell sheet.
4. as any described knives rack clamping unit that is used for main shaft device in the claim 1 to 3, it is characterized in that,
Inside at described tubular shell, with can be in the prescribed stroke scope reciprocating mode, accommodate the slide block that constitutes described clamp mechanism, rearward end at described slide block forms the shaft hub that periphery has protuberance, leading section at described pull bar forms patchhole that inserts described shaft hub and the gathering sill that protuberance is led, form at the pars intermedia of described patchhole and can block the card that ends described protuberance and end recess, by pull bar and slide block are relatively rotated, pull bar is connected, under this connection status in irremovable mode on direction of principal axis with slide block.
5. the knives rack clamping unit that is used for main shaft device as claimed in claim 4 is characterized in that,
Between described tubular shell and slide block, be provided with and stop two parts to rotate the prevention parts in relative rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005221733 | 2005-07-29 | ||
| JP2005221733 | 2005-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1903488A true CN1903488A (en) | 2007-01-31 |
| CN100579697C CN100579697C (en) | 2010-01-13 |
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ID=37650575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610099560A Active CN100579697C (en) | 2005-07-29 | 2006-07-28 | Knives rack clamping unit for main shaft device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101295945B1 (en) |
| CN (1) | CN100579697C (en) |
| DE (1) | DE102006035643B4 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992308B (en) * | 2009-08-26 | 2012-03-21 | 发得科技工业股份有限公司 | Cutter clamping device |
| CN102448645A (en) * | 2009-06-15 | 2012-05-09 | 金松实 | Mechanism for grasping tool, chuck, clamping mechanism or the like |
| CN101939135B (en) * | 2008-02-06 | 2013-05-01 | 西门子Vai金属科技有限责任公司 | Coupling mechanism and method for automatically coupling a tool holder to a tool fixture on a manipulation device |
| CN104526373A (en) * | 2014-11-14 | 2015-04-22 | 常州市龙润机械有限公司 | An automatic clamping mechanism for a cutter |
| CN104807596A (en) * | 2014-01-28 | 2015-07-29 | 申克罗泰克有限责任公司 | Mounting device for a rotary spindle of a balancing machine |
| TWI769068B (en) * | 2021-08-26 | 2022-06-21 | 財團法人精密機械研究發展中心 | Tool changing mechanism with functions of controlling loosening and broaching |
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| KR102532211B1 (en) | 2018-01-31 | 2023-05-15 | 주식회사 디엔솔루션즈 | Controlling apparatus of machine tool and controlling method of machine tool |
| KR102492842B1 (en) | 2018-08-31 | 2023-01-27 | 주식회사 디엔솔루션즈 | Fix plate for milling holder |
| CN109128953A (en) * | 2018-09-06 | 2019-01-04 | 广州市昊志机电股份有限公司 | A kind of anti-rotation structure of main spindle broach mechanism |
| CN114986730A (en) * | 2022-06-30 | 2022-09-02 | 青岛高测科技股份有限公司 | Automatic tensioning device of cutting roller of crystal silicon slicing machine, assembling method and slicing machine |
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| JP2557915B2 (en) | 1987-11-20 | 1996-11-27 | 東芝機械株式会社 | Spindle drive |
| DE4308738A1 (en) | 1993-03-19 | 1994-09-22 | Kelch & Co Werkzeugmaschf | Clamping and release device for shank-type tools |
| JPH0760515A (en) * | 1993-08-27 | 1995-03-07 | Mori Seiki Co Ltd | Tool attaching/detaching device |
| DE19641831B4 (en) * | 1996-10-10 | 2007-02-08 | Deckel Maho Pfronten Gmbh | Universal milling and drilling machine |
| JPH1110416A (en) * | 1997-06-24 | 1999-01-19 | Fuji Seiko Kk | Chuck holder and chuck fitting device |
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2006
- 2006-07-27 KR KR1020060070723A patent/KR101295945B1/en active IP Right Grant
- 2006-07-28 CN CN200610099560A patent/CN100579697C/en active Active
- 2006-07-31 DE DE102006035643.8A patent/DE102006035643B4/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101939135B (en) * | 2008-02-06 | 2013-05-01 | 西门子Vai金属科技有限责任公司 | Coupling mechanism and method for automatically coupling a tool holder to a tool fixture on a manipulation device |
| CN102448645A (en) * | 2009-06-15 | 2012-05-09 | 金松实 | Mechanism for grasping tool, chuck, clamping mechanism or the like |
| CN102448645B (en) * | 2009-06-15 | 2014-05-07 | 金松实 | Mechanism for grasping tool, chuck, clamping mechanism or the like |
| CN101992308B (en) * | 2009-08-26 | 2012-03-21 | 发得科技工业股份有限公司 | Cutter clamping device |
| CN104807596A (en) * | 2014-01-28 | 2015-07-29 | 申克罗泰克有限责任公司 | Mounting device for a rotary spindle of a balancing machine |
| CN104526373A (en) * | 2014-11-14 | 2015-04-22 | 常州市龙润机械有限公司 | An automatic clamping mechanism for a cutter |
| TWI769068B (en) * | 2021-08-26 | 2022-06-21 | 財團法人精密機械研究發展中心 | Tool changing mechanism with functions of controlling loosening and broaching |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006035643B4 (en) | 2022-05-25 |
| DE102006035643A1 (en) | 2007-02-01 |
| KR101295945B1 (en) | 2013-08-13 |
| KR20070015026A (en) | 2007-02-01 |
| CN100579697C (en) | 2010-01-13 |
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