CN116765896A - High-speed numerical control machining center - Google Patents
High-speed numerical control machining center Download PDFInfo
- Publication number
- CN116765896A CN116765896A CN202310565537.1A CN202310565537A CN116765896A CN 116765896 A CN116765896 A CN 116765896A CN 202310565537 A CN202310565537 A CN 202310565537A CN 116765896 A CN116765896 A CN 116765896A
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- clutch
- cutter
- tool
- turntable
- claw
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- Pending
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- 210000000078 claw Anatomy 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000011324 bead Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 description 8
- 238000005553 drilling Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000357216 Oplegnathus woodwardi Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
- B23Q3/15706—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a single tool being inserted in a spindle directly from a storage device, i.e. without using transfer devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The utility model relates to a high-speed numerical control machining center. Comprises a frame, a main spindle box and a tool magazine; the tool magazine comprises a swinging frame and a turntable, wherein the turntable is rotatably arranged on the swinging frame, the periphery of the turntable is provided with a plurality of tool claws, and each tool claw is used for clamping a tool; the tool magazine is provided with a tool changing station in the rotating direction of the turntable; the main shaft box is arranged on the frame in a way of up-and-down lifting; a main shaft is arranged on the main shaft box; the swinging frame of the tool magazine is arranged on the frame in a swinging manner between a avoiding position and a tool changing position, and a linkage mechanism is arranged between the spindle box and the swinging frame; each knife claw is slidably mounted on the turntable between an extended position and a retracted position; the swing frame is provided with a telescopic driving mechanism for driving the cutter claw reaching the cutter changing station to slide. According to the utility model, the cutter claw can slide along the radial direction of the cutter, so that the cutter claw is separated from the cutter after the main shaft clamps and fixes the cutter, the cutter claw is prevented from prying the cutter when swinging along with the cutter magazine, and the clamping precision is ensured.
Description
Technical Field
The utility model relates to a high-speed numerical control machining center.
Background
The high-speed numerical control machining center generally comprises a frame, a spindle box and a tool magazine, and tool changing can be realized through linkage of the spindle box and the tool magazine.
The Chinese patent application publication CN 107030511A discloses an intelligent high-precision quick-change tool servo tool magazine, which comprises a cutter head and cutter claw mechanisms uniformly distributed on the periphery of the cutter head, wherein each cutter claw mechanism is used for clamping a cutter;
chinese patent application publication CN 107803542A discloses a resiliently arranged cutter jaw of a numerically controlled milling machine, which clamps a cutter by two leg plates, the front end of each leg plate is provided with a roller for abutting against the clamped cutter, and the rear end of each leg plate is provided with a return spring for providing a force for clamping the cutter to the leg plates.
The tool changing mechanism of the drilling and tapping machine disclosed in the Chinese patent specification CN 204868284U comprises a spindle box capable of sliding up and down, a tool magazine support and a cutter head, wherein the cutter head is hinged with the tool magazine support through a pin shaft, a guide plate is fixed on the outer side of the spindle box, a roller which abuts against the guide plate is arranged on the cutter head, an elastic component (namely an extension spring) which is used for pulling the cutter head to one side of a stand column to enable the roller to always abut against the guide plate is arranged between the cutter head and the tool magazine support, and when the guide plate moves up and down under the driving of the spindle box, the guide plate can guide the roller, so that the cutter head deflects by taking the pin shaft as the center, and is in an inclined state or a sagging state. In this process, the elastic member always generates a pulling force on the cutterhead.
The cutter changing process of the existing high-speed numerical control machining center can be seen as follows:
(a) As shown in fig. 1, a tool magazine 101 is hinged on a frame 103 through a pin 102, a roller 105 on the tool magazine 101 is always abutted against a guide plate 107 with a cam curve profile 106 by using a tension spring 104 between the frame 103 and the tool magazine 101, a tool 110 to be replaced is rotated to a tool replacing station by using a turntable of the tool magazine 101, and a spindle 109 on a spindle box 108 is positioned above the tool 110 to be replaced;
(b) As shown in fig. 2, the tool 110 to be replaced is held on the claw 111;
(c) As shown in fig. 3, the headstock 108 is driven to descend so that the shank of the tool to be replaced is inserted into the main shaft 109 and clamped and fixed by the main shaft 109;
(d) As shown in fig. 4, the headstock 108 is continuously driven to descend, and the tool magazine 101 swings under the force of the cam curve profile 106 of the guide plate, so that the tool magazine 101 avoids the headstock 108, and the tool 110 to be changed is separated from the tool claw 111, thereby realizing tool changing.
However, as shown in fig. 5, when the tool magazine 101 swings, the position of the tool to be replaced 110 in the horizontal direction is unchanged, and the tool claw 111 swings up along with the swinging of the tool magazine, so that the tool to be replaced 110 is pried, abrasion of the tool is increased, the clamping precision of the tool is affected, and the machining precision is affected.
Disclosure of Invention
The utility model aims to provide a high-speed numerical control machining center which comprises a frame, a spindle box and a tool magazine; the tool magazine comprises a swinging frame and a turntable, wherein the turntable is rotatably arranged on the swinging frame around the axis of the turntable, the periphery of the turntable is provided with a plurality of tool claws which are circumferentially and equally distributed around the axis of the turntable, and each tool claw is used for clamping a tool; the tool magazine is provided with a tool changing station in the rotating direction of the turntable, and any one of the tool claws can be selectively made to reach the tool changing station when the turntable rotates; the main shaft box is arranged on the frame in a way of up-and-down lifting; a main shaft is arranged on the main shaft box; the swinging frame of the tool magazine is arranged on the frame in a swinging way between a avoiding position and a tool changing position, and a linkage mechanism which drives the swinging frame to swing when the main shaft box is lifted is arranged between the main shaft box and the swinging frame; each jaw is slidably mounted on the turntable between an extended position and a retracted position along a radial direction of a tool held by the jaw; the swing frame is provided with a telescopic driving mechanism for driving the cutter claw reaching the cutter changing station to slide.
According to the utility model, the cutter claw can slide along the radial direction of the cutter, so that the cutter claw is separated from the cutter after the main shaft clamps and fixes the cutter, the cutter claw is prevented from prying the cutter when swinging along with the cutter magazine, and the clamping precision is ensured.
Drawings
FIGS. 1 to 5 are schematic views showing a tool changing process of a conventional high-speed numerical control machining center;
FIG. 6 shows a front view of the present utility model;
figures 7 and 8 show perspective views of the utility model at two different angles, respectively;
fig. 9 and 10 show perspective views of the headstock and tool magazine, respectively, of the present utility model at two different angles;
FIG. 11 shows a front view of the headstock and tool magazine of the present utility model;
FIGS. 12 and 13 show two different angles of exploded perspective views of the headstock and tool magazine, respectively, of the present utility model;
FIG. 14 shows a perspective view of a grooved cam of the present utility model;
FIG. 15 shows a front view of a grooved cam of the present utility model;
FIGS. 16 and 17 show two different angles of exploded perspective views of the tool magazine of the present utility model, respectively;
FIG. 18 shows a perspective view of the turntable of the present utility model after all of the cutters have been concealed;
FIG. 19 shows an enlarged partial view of portion A of FIG. 18;
FIG. 20 shows a schematic view of the components of FIG. 19 after they have been disassembled;
FIG. 21 shows a B-B cross-sectional view of FIG. 19;
FIG. 22 shows a schematic view of the components of FIG. 21 after they have been disassembled;
FIG. 23 shows a perspective view of the telescopic drive mechanism of the present utility model;
FIG. 24 illustrates a front view of the telescopic drive mechanism of the present utility model;
FIG. 25 shows an exploded perspective view of the telescopic drive mechanism of the present utility model;
FIG. 26 shows a perspective view of the swing frame and turntable of the present utility model;
FIG. 27 shows an enlarged partial view of portion C of FIG. 26;
FIG. 28 shows a perspective view of the telescopic drive mechanism and the knife pawl of the present utility model with the driving portion of the clutch engaged with the driven portion of the clutch and the knife pawl in the extended position;
FIG. 29 shows a schematic view of the knife jaw of FIG. 28 after being actuated to slide to a retracted position;
FIG. 30 is a schematic illustration of the clutch of FIG. 28 after the driving portion of the clutch is disengaged from the driven portion of the clutch;
fig. 31 to 35 show schematic views of the tool changing process of the present utility model.
Reference numerals:
a 10-frame;
20 main spindle box, 201 main spindle;
30 tool magazine, 301 swing frame, 302 turntable, 303 inner cover, 304 outer cover, 305 guide mechanism, 306 telescopic driving motor, 307 clutch driving part, 308 clutch bracket, 309 clutch sliding seat, 310 clutch driving motor, 311 clutch driving screw, 312 clutch driving nut, 313 push rod, 314 roller;
40 knife claw, 401 rotating shaft, 402 clutch driven part, 403 gear, 404 rack, 405 recess;
50 cutters;
60 elastic positioning beads and 601 beads;
70 groove cams, 701 grooves, 702 tool change holding sections, 703 transition sections, 704 dodge holding sections.
Detailed Description
The scheme of the utility model is further described below with reference to the accompanying drawings.
A high-speed numerical control machining center as shown in fig. 1 to 30 includes a frame 10, a headstock 20, and a tool magazine 30;
the tool magazine 30 comprises a swinging frame 301 and a turntable 302, wherein the turntable 302 is rotatably arranged on the swinging frame 301 around the axis of the turntable, the periphery of the turntable 302 is provided with a plurality of tool claws 40 which are circumferentially and equally spaced around the axis of the turntable, each tool claw 40 is used for clamping one tool 50, and the tools comprise a drilling tool, a milling tool and a tapping tool, so that a drilling, milling and tapping integrated high-speed numerical control machining center is formed; in this embodiment, the tool magazine 30 includes an inner housing 303 fixedly mounted on the swing frame 301 and an outer housing 304 fixedly mounted on the turntable 302, and the specific structure of the tool claw 40 is just as in the prior art;
the tool magazine 30 is provided with a tool changing station in the rotation direction of the turntable 302, and when the turntable 302 rotates, any one of the tool claws 40 can be selectively made to reach the tool changing station;
the main spindle box 20 is installed on the frame 10 in a way of up-down lifting, and a main spindle 201 is arranged on the main spindle box 20;
the swing frame 301 of the tool magazine 30 is swingably mounted on the frame 10 between a retracted position and a tool changing position;
a linkage mechanism for driving the swing frame 301 to swing when the spindle box 20 is lifted is arranged between the spindle box 20 and the swing frame 301;
each jaw 40 is slidably mounted on the turntable 302 in a radial direction of the tool 50 held by the jaw between an extended position and a retracted position, in this embodiment, a set of guide mechanisms 305 (e.g., guide rail sliders) may be provided on the turntable 302 for guiding the sliding of each jaw in the radial direction of the tool held by the jaw;
the swing frame 301 is provided with a telescopic driving mechanism for driving the cutter claw 40 reaching the cutter changing station to slide.
According to the technical scheme, the cutter claw can slide along the radial direction of the cutter, so that the cutter claw is separated from the cutter after the main shaft is clamped and fixed on the cutter, the cutter claw is prevented from prying the cutter when following the swing of the cutter magazine, and the clamping precision is guaranteed.
Each of the claws 40 is provided with a rotation shaft 401, a driven portion 402 of a clutch, and a transmission mechanism, the rotation shaft 401 being rotatably mounted on the turntable 302, the driven portion 402 of the clutch being fixedly mounted on the rotation shaft 401, the transmission mechanism being provided between the claw 40 and the rotation shaft 401, and the transmission mechanism being provided to convert the rotational movement of the rotation shaft 401 into linear sliding of the claw 40;
the telescopic driving mechanism comprises a telescopic driving motor 306 and a driving part 307 of a clutch, wherein the driving part 307 of the clutch is fixedly arranged on an output shaft of the telescopic driving motor 306;
the driving part 307 of the clutch of the telescopic driving mechanism is selectively engaged with and disengaged from the driven part 402 of the clutch reaching the claw of the tool changing station, the rotating shaft of the claw reaching the tool changing station is connected with the output shaft of the telescopic driving motor to transmit power when the driven part of the clutch is engaged with the driving part of the clutch, and the rotating shaft of the claw reaching the tool changing station is separated from the output shaft of the telescopic driving motor to cut off power when the driven part of the clutch is engaged with the driving part of the clutch.
The technical scheme adopts reasonable design, utilizes the separation and the connection of the driving part of the same clutch and the driven parts of different clutches, can realize that the same telescopic driving motor operates all the cutter claws, does not need to respectively configure a telescopic driving motor for each cutter claw, and simplifies the structure while ensuring the effectiveness of operation.
The telescopic driving mechanism also comprises a clutch bracket 308, a clutch sliding seat 309, a clutch driving motor 310, a clutch transmission screw 311 and a clutch transmission nut 312;
the clutch bracket 308 is fixedly mounted on the swing frame 301;
the clutch sliding seat 309 is slidably mounted on the clutch bracket 308 along the axis of the output shaft of the telescopic driving motor 306;
the telescopic driving motor 306 is fixedly installed on the clutch sliding seat 309;
the axis of the output shaft of the telescopic driving motor 306 is coincident with the axis of the rotating shaft 401 of the cutter jaw reaching the cutter changing station;
the driving part 307 of the clutch of the telescopic driving mechanism and the driven part 402 of the clutch of each cutter jaw are half clutches with teeth so that the driving part of the clutch of the telescopic driving mechanism and the driven part of the clutch of the cutter jaw reaching the cutter changing station form a jaw clutch;
the clutch transmission screw 311 is rotatably mounted on the clutch bracket 308, and the axis of the clutch transmission screw 311 is parallel to the axis of the output shaft of the telescopic driving motor 306;
the clutch transmission nut 312 is fixedly installed on the clutch sliding seat 309, and the clutch transmission nut 312 is sleeved outside the clutch transmission screw 311, so that the clutch transmission nut 312 and the clutch transmission screw 312 form a screw nut movement mechanism;
the clutch driving motor 310 is fixedly arranged on the clutch bracket 308, and an output shaft of the clutch driving motor 310 is fixedly connected with the clutch transmission screw rod 311, so that when the output shaft of the clutch driving motor rotates, the clutch sliding seat, the telescopic driving motor and a driving part of the clutch are driven by the screw rod nut moving mechanism to slide along the axis of the output shaft of the telescopic driving motor, and the driving part of the clutch is far away from or near to a rotating shaft of a cutter claw reaching a cutter changing station and a driven part of the clutch;
the output of the clutch drive motor 310 rotates to drive the telescoping drive motor 306 to slide between an engaged position and a disengaged position;
the driving part 307 of the clutch of the telescopic drive mechanism is engaged with the driven part 402 of the clutch of the claw reaching the tool changing station when the telescopic drive motor 306 is in the engaged position;
the driving portion 307 of the telescopic drive mechanism clutch is disengaged from the driven portion 402 of the clutch of the jaw reaching the tool changing station when the telescopic drive motor 306 is in the disengaged position.
The technical scheme utilizes the clutch driving motor to control the engagement and separation of the driving part of the clutch and the driven part of the clutch of the cutter claw reaching the tool changing station, and has reasonable design and convenient implementation. In addition, the clutch driving motor is utilized to drive the driving part of the clutch to leave the driven part of the clutch, so that the interference of the driving part of the clutch is avoided to influence the rotation of the turntable.
The transmission mechanism of each cutter claw comprises a gear 403 and a rack 404 extending along the radial direction of the cutter held by the cutter claw;
the rack 404 is fixedly mounted on the jaw 40;
the gear 403 is fixedly mounted on the shaft 401.
The transmission mechanism disclosed by the technical scheme is simple in structure and convenient to implement.
Each jaw 40 is also provided with a locking mechanism mounted to the turntable 302 that is configured to prevent rotation of the shaft (i.e., to prevent sliding movement of the jaw) when the jaw 40 is in the extended position.
According to the technical scheme, the locking mechanism is arranged to lock the cutter claw at the extending position, so that on one hand, the problem that the main shaft cannot be aligned with the cutter on the cutter claw reaching the cutter changing station due to the fact that the cutter claw is separated from the extending position is avoided, and the cutter changing work is influenced; on the other hand, the driven part of the toothed clutch can be ensured to be aligned with the driving part of the toothed clutch when the cutter claw reaches the cutter changing station, so that the alignment and the engagement of the driven part and the driving part are facilitated.
The locking mechanism includes a resilient positioning bead 60;
the driven part 402 of the clutch of each cutter claw is provided with a recess 405 into which the ball 601 of the elastic positioning ball is sunk;
the ball 601 of the resilient locating bead of each jaw is trapped in the recess 405 of the driven portion of the clutch when the jaw is in the extended position to prevent rotation of the driven portion 402 of the clutch, thereby effecting prevention of rotation of the shaft and prevention of sliding of the jaw.
The locking mechanism disclosed by the technical scheme is simple in structure and convenient to implement, and the driven part (comprising the rotating shaft and the cutter claw) of the clutch can move only under the action of forced torsion. After the driving part of the clutch is connected with the driven part of the clutch, the telescopic driving motor can provide the acting force for overcoming the elastic positioning beads for the driven part of the clutch, so that the beads of the elastic positioning beads go out of the concave pits, and the driven part (comprising the rotating shaft and the cutter claw) of the clutch can move.
In this embodiment, the elastic positioning bead (also called as a ball plus or Spring plus), a ball plunger or a Spring plunger) is just the prior art.
The linkage includes a grooved cam 70 fixedly mounted on the headstock and a push rod 313 fixedly mounted on the swing frame 301,
the grooved cam 70 is provided with a groove 701, and the push rod 313 is provided with a roller 314 arranged in the groove 701;
the groove 701 comprises a tool changing holding section 702, a transition section 703 and a dodging holding section 704 which are sequentially connected from bottom to top, wherein,
the magazine 30 is always in the tool changing position when the rollers 314 are in the tool changing holding section 702;
the magazine 30 is always in the retracted position when the roller 314 is in the retracted retaining segment 704;
the transition section 703 allows the roller 314 to transition between the tool change holding section 702 and the back-out holding section 704.
The effectiveness of the extension spring as shown in the prior art and in fig. 1-5 directly affects the overall tool changing process. The tension springs themselves are subject to fatigue failure and therefore require frequent replacement.
The principle of the groove cam mechanism is utilized, so that the roller is always limited in the groove without additionally arranging a tension spring, the service life can be prolonged, and the smooth operation of the tool changing process is ensured.
A grooved cam 70 and a push rod 313 constitute a set of linkage units;
the linkage units are provided with two groups;
the two sets of linkage units are separated from both sides of the headstock 20.
According to the technical scheme, the two sides of the spindle box are respectively provided with the group of linkage units, so that the linkage process is smoother and more stable.
The working process of the utility model can be seen as follows.
(1) As shown in fig. 31, the roller 314 is in the tool changing holding section 702 of the groove, the magazine 30 is in the tool changing position, the turntable 302 rotates the tool 50 to the tool changing station, the claw 40 is in the extended position, the telescopic drive motor 306 is in the disengaged position, the driving portion 307 of the clutch is disengaged from the driven portion 402 of the clutch, and the spindle 201 is located above the tool 50;
(2) As shown in fig. 32, the headstock 20 is driven to descend so that the shank of the tool 50 is inserted into the main shaft 201 and clamped by the main shaft 201, and the clutch slide seat 309 and the telescopic drive motor 306 are driven to descend to the engaged position so that the driving portion 307 of the clutch is engaged with the driven portion 402 of the clutch;
(3) As shown in fig. 33, the jaws 40 are urged to slide to a retracted position, causing the jaws 40 to move away from the tool 50;
(4) As shown in fig. 34, the headstock 20 is driven to descend again, the spindle 201 descends with the tool, and the roller 314 forces the tool magazine to swing from the tool changing position to the avoiding position under the guidance of the transition section 703 of the groove, so that the tool magazine 30 avoids the headstock 20;
(5) As shown in fig. 35, after the headstock 20 continues to descend, the rollers 314 are positioned at the escape holding sections 704 of the grooves, and the magazine 30 is positioned at the escape position, thereby completing the tool changing operation.
After the cutter is used, the precursor enables the main spindle box to reach the position shown in fig. 32, wherein the main spindle box can be lifted to the highest position and then lowered to the position shown in fig. 32; then driving the cutter claw to slide from the retracted position to the extended position so that the cutter claw clamps the cutter on the main shaft; finally, the main shaft loosens the cutter, the main shaft box rises to enable the main shaft to be separated from the cutter, and the clutch sliding seat and the telescopic driving motor are driven to rise to the separation position so as to enable the driving part of the clutch to be separated from the driven part of the clutch; and finishing the replacement of the used cutter back to the cutter claw.
Claims (8)
1. A high-speed numerical control machining center comprises a frame, a spindle box and a tool magazine;
the tool magazine comprises a swinging frame and a turntable, wherein the turntable is rotatably arranged on the swinging frame around the axis of the turntable, the periphery of the turntable is provided with a plurality of tool claws which are circumferentially and equally distributed around the axis of the turntable, and each tool claw is used for clamping a tool;
the tool magazine is provided with a tool changing station in the rotating direction of the turntable, and any one of the tool claws can be selectively made to reach the tool changing station when the turntable rotates;
the main shaft box is arranged on the frame in a way of up-down lifting motion, and a main shaft is arranged on the main shaft box;
the swing frame of the tool magazine is arranged on the frame in a swinging manner between a avoiding position and a tool changing position;
a linkage mechanism which drives the swinging frame to swing when the main shaft box is lifted is arranged between the main shaft box and the swinging frame;
the method is characterized in that:
each jaw is slidably mounted on the turntable between an extended position and a retracted position along a radial direction of a tool held by the jaw;
the swing frame is provided with a telescopic driving mechanism for driving the cutter claw reaching the cutter changing station to slide.
2. The high-speed numerically controlled machining center according to claim 1, wherein:
each cutter claw is respectively provided with a rotating shaft, a driven part of a clutch and a transmission mechanism, wherein the rotating shaft is rotatably arranged on the turntable, the driven part of the clutch is fixedly arranged on the rotating shaft, the transmission mechanism is arranged between the cutter claw and the rotating shaft, and the transmission mechanism is arranged to convert the rotating motion of the rotating shaft into the linear sliding of the cutter claw;
the telescopic driving mechanism comprises a telescopic driving motor and a driving part of a clutch, wherein the driving part of the clutch is fixedly arranged on an output shaft of the telescopic driving motor;
the driving portion of the clutch of the telescopic drive mechanism is selectively engaged with and disengaged from the driven portion of the clutch of the jaws reaching the tool changing station.
3. The high-speed numerically controlled machining center according to claim 2, wherein:
the telescopic driving mechanism further comprises a clutch bracket, a clutch sliding seat, a clutch driving motor, a clutch transmission screw rod and a clutch transmission nut;
the clutch bracket is fixedly arranged on the swinging frame;
the clutch sliding seat is slidably arranged on the clutch bracket along the axis of the output shaft of the telescopic driving motor;
the telescopic driving motor is fixedly arranged on the clutch sliding seat;
the axis of the output shaft of the telescopic driving motor is coincident with the axis of the rotating shaft of the cutter claw reaching the cutter changing station;
the driving part of the clutch of the telescopic driving mechanism and the driven part of the clutch of each cutter claw are both half clutches with teeth;
the clutch transmission screw rod is rotatably arranged on the clutch bracket, and the axis of the clutch transmission screw rod is parallel to the axis of the output shaft of the telescopic driving motor;
the clutch transmission nut is fixedly arranged on the clutch sliding seat, and the clutch transmission nut is sleeved outside the clutch transmission screw rod, so that the clutch transmission nut and the clutch transmission screw rod form a screw rod nut movement mechanism;
the clutch driving motor is fixedly arranged on the clutch bracket, and an output shaft of the clutch driving motor is fixedly connected with the clutch transmission screw rod;
when the output of the clutch driving motor rotates, the telescopic driving motor is driven to slide between an engaging position and a disengaging position;
the driving part of the clutch of the telescopic driving mechanism is engaged with the driven part of the clutch of the cutter claw reaching the cutter changing station when the telescopic driving motor is at the engaging position;
the driving part of the clutch of the telescopic driving mechanism is separated from the driven part of the clutch of the cutter claw reaching the cutter changing station when the telescopic driving motor is at the separation position.
4. A high speed numerically controlled machining center as in claim 3, wherein:
the transmission mechanism of each cutter claw comprises a gear and a rack extending along the radial direction of the cutter clamped by the cutter claw;
the rack is fixedly arranged on the cutter claw;
the gear is fixedly mounted on the rotating shaft.
5. The high-speed numerically controlled machining center according to claim 4, wherein:
each jaw is further provided with a locking mechanism mounted to the turntable, the locking mechanism being arranged to prevent rotation of the spindle when the jaw is in the extended position.
6. The high-speed numerically controlled machining center according to claim 5, wherein:
the locking mechanism comprises an elastic positioning bead;
the driven part of the clutch of each cutter claw is provided with a concave groove for the ball beads of the elastic positioning beads to sink into;
the ball of the resilient locating bead of each jaw is trapped in a recess of the driven portion of the clutch when the jaw is in the extended position to prevent rotation of the driven portion of the clutch.
7. The high-speed numerically controlled machining center according to any one of claims 1 to 6, wherein:
the linkage mechanism comprises a grooved cam fixedly arranged on the main shaft box and a push rod fixedly arranged on the swinging frame,
the groove cam is provided with a groove, and the push rod is provided with a roller arranged in the groove;
the groove comprises a tool changing holding section, a transition section and an avoidance holding section which are sequentially connected from bottom to top,
the tool magazine is always positioned at the tool changing position when the roller is positioned at the tool changing maintaining section;
the tool magazine is always positioned at the avoiding position when the roller is positioned at the avoiding retaining section;
the transition section is used for the roller to transition between the tool changing holding section and the avoiding holding section.
8. The high-speed numerically controlled machining center according to claim 7, wherein:
a groove cam and a push rod form a group of linkage units;
the linkage units are provided with two groups;
the two groups of linkage units are separated from two sides of the main shaft box.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310082730X | 2023-01-19 | ||
| CN202310082730 | 2023-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116765896A true CN116765896A (en) | 2023-09-19 |
Family
ID=87986940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310565537.1A Pending CN116765896A (en) | 2023-01-19 | 2023-05-18 | High-speed numerical control machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116765896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086630A (en) * | 2023-10-18 | 2023-11-21 | 云南精机琥正机械有限公司 | Vertical composite processing machine tool |
-
2023
- 2023-05-18 CN CN202310565537.1A patent/CN116765896A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086630A (en) * | 2023-10-18 | 2023-11-21 | 云南精机琥正机械有限公司 | Vertical composite processing machine tool |
| CN117086630B (en) * | 2023-10-18 | 2023-12-15 | 云南精机琥正机械有限公司 | Vertical composite processing machine tool |
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