CN115740533B - Machine tool chuck device - Google Patents
Machine tool chuck device Download PDFInfo
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- CN115740533B CN115740533B CN202211431293.XA CN202211431293A CN115740533B CN 115740533 B CN115740533 B CN 115740533B CN 202211431293 A CN202211431293 A CN 202211431293A CN 115740533 B CN115740533 B CN 115740533B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a machine tool chuck device, and belongs to the technical field of chucks. A chuck device of a machine tool, which comprises a chuck body, comprises a chuck body, at least two clamping mechanisms and a driving device, wherein the clamping mechanisms and the driving device are arranged on the chuck body and are in a circumferential array; the clamping mechanism comprises a claw which moves along the radial direction of the chuck body the device comprises a first movable ring, a sliding block, a rotating rod, a movable rod and a half nut; on the top wall of the chuck body is provided with a jaw feeding edge a first mounting groove for radially moving the chuck body; the first mounting groove is internally provided with a half nut threaded engagement screw; the first movable ring is fixedly connected between the half nut and the clamping jaw; the bottom end of the claw is provided with a sliding groove for the sliding block to move, one end of the sliding block is arranged in the sliding groove, and the other end of the sliding block extends out of the sliding groove; the peripheral wall of the chuck body is provided with a second mounting groove; the rotating rod is rotatably connected between the moving rod and the sliding block. The clamping jaw on the chuck can be easily detached, and eccentric clamping and clamping of different machining workpieces can be further performed.
Description
Technical Field
The present invention relates to the field of chucks, and more particularly, to a machine tool chuck apparatus.
Background
When some conditions are met, for example, scraps enter the clamping groove, the clamping claws are blocked, if scraps in the clamping groove are removed, the clamping claws are required to be removed from the clamping groove to clean scraps in the clamping groove, the clamping claws on the existing clamping disk are inconvenient to detach and install, a plurality of screws are required to be screwed, and the clamping claws are troublesome
In order to solve the above-mentioned problems, the present invention is directed to developing a machine tool chuck device.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a machine tool chuck device which can easily disassemble the clamping jaw on the chuck and can also carry out eccentric clamping and clamping of different machining workpieces.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A chuck device of a machine tool comprises a chuck body, at least two clamping mechanisms and a driving device, wherein the clamping mechanisms are arranged on the chuck body and are in a circumferential array; the clamping mechanism comprises a claw, a first moving ring, a sliding block, a rotating rod, a moving rod and a half nut, wherein the claw moves along the radial direction of the chuck body; the top wall of the chuck body is provided with a first mounting groove for the clamping jaw to move along the radial direction of the chuck body; a screw rod in threaded engagement with the half nut is arranged in the first mounting groove; the first movable ring is fixedly connected between the half nut and the clamping jaw; the bottom end of the claw is provided with a sliding groove for the sliding block to move, one end of the sliding block is arranged in the sliding groove, and the other end of the sliding block extends out of the sliding groove; the peripheral wall of the chuck body is provided with a second mounting groove; the rotating rod is rotationally connected between the moving rod and the sliding block, and one end of the moving rod, which is far away from the rotating rod, extends into the second mounting groove; the driving device is used for driving the screw rod to rotate; sliding cavities which correspond to the screws in number and are parallel to the length direction of the screws are arranged in the clamping disc body; the sliding cavity is internally provided with a second electromagnet sliding along the length direction of the sliding cavity; one side of the half nut far away from the movable ring is provided with a magnetic pole, and the second electromagnet can be attracted with the half nut mutually; the length direction of the sliding cavity, the radial moving direction of the clamping jaw along the chuck body and the moving direction of the sliding block in the sliding groove are mutually parallel.
Further, a rectangular through hole matched with the shape of the movable rod is formed in the end part of the screw rod; the second mounting groove is opposite to the rectangular through hole and is communicated with the first mounting groove; one end of the movable rod, which is far away from the rotating rod, penetrates through the second mounting groove and stretches into the rectangular through hole.
Further, a conical gear is arranged at the end part of the screw far away from the rotating rod; a rectangular groove is formed in one side, close to the screw rod, of the conical gear, and the rectangular through hole is communicated with the rectangular groove; one end of the movable rod, which is far away from the rotating rod, sequentially passes through the second mounting groove and the rectangular through hole and stretches into the rectangular groove; the second mounting groove is circular in cross section, and the first sliding rod can rotate along the central axis of the second mounting groove.
Further, the clamping mechanism further comprises a blocking supporting block, a first guide rod, a guide hole and a second guide rod; the guide hole is arranged on the side wall of the sliding block and is positioned outside the sliding groove; one end of the first guide rod is fixedly connected with the inner side wall of the first mounting groove, the other end of the first guide rod penetrates through the first moving ring to be connected with one end of the second guide rod, and the other end of the second guide rod penetrates through the guide hole to be detachably connected with the blocking support block; the central axis of the first guide rod, the length direction of the sliding cavity, the radial moving direction of the clamping jaw along the chuck body and the moving direction of the sliding block in the sliding groove are mutually parallel; a limiting groove for limiting the sliding block is formed between the blocking support block and the first guide rod, and the sliding block can move up and down relative to the second guide rod; the second electromagnet can attract or repel the magnetic pole of one side of the half nut away from the movable ring; when the second electromagnet is electrified positively, one side of the second electromagnet close to the half nut is a magnetic pole which is mutually attracted with the half nut, otherwise, when the second electromagnet is electrified negatively, one side of the second electromagnet close to the half nut is a magnetic pole which is mutually repelled with the half nut, and the half nut moves upwards; the chuck body and the screw are made of nonmetallic materials.
Further, the moving rod comprises a moving block, a first sliding rod, a spring, a second sliding rod and a limiting block; the second sliding rod is fixedly connected between the first sliding rod and the limiting block; the moving block is sleeved on the second slide rod in a sliding way, and the spring is sleeved on the second slide rod and positioned between the moving block and the first slide rod; the first sliding rod, the moving block, the rectangular groove and the rectangular through hole are the same in cross section shape.
Further, baffles in the radial moving direction of the clamping jaw along the chuck body are arranged on two opposite side walls of the clamping jaw; the section of the baffle is right triangle, the baffle is provided with an inclined plane, and the inclined plane is inclined close to the top wall of the chuck body; the bottom of the baffle is connected with the top wall of the chuck body in a sliding way; the end of the baffle plate along the radial moving direction of the chuck body is flush with the end of the clamping jaw.
Further, a columnar fixing part is arranged at the right center of the top end of the chuck body, and an elastic film is sleeved and fixed on the columnar fixing part; the side wall of the clamping jaw, which is close to the central axis of the chuck body, is detachably provided with a fixing strip, and one side wall of the fixing strip, which is far away from the clamping jaw, is fixed with the end part of the elastic membrane; the length of the fixing strip is larger than the width of the clamping jaw; when a plurality of claws are mutually far away, the elastic membrane is opened, and the elastic membrane is in an inverted cone shape.
Further, one ends of the clamping jaws close to each other are provided with contact switch pieces, and the contact switch pieces are used for controlling second electromagnets corresponding to half nuts on the clamping jaws where the contact switch pieces are located to enable positive and negative currents to be conducted.
Further, the central axes of the rectangular groove, the rectangular through hole, the second mounting groove and the screw rod coincide.
Further, the driving device comprises a forward and reverse rotation motor and a bevel gear; the bottom end of the chuck body is provided with a mounting cavity which is communicated with the first mounting groove; the conical gear is arranged in the mounting cavity, one end of the conical gear is meshed with the conical gear, a gear shaft is arranged on the conical gear, and the gear shaft is connected with the output end of the positive and negative motor.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, through the magnetic poles arranged on the side, far away from the moving ring, of the first moving ring, the sliding block, the rotating rod, the moving rod, the sliding block, the sliding groove, the half nut, the second mounting groove, the screw rod and the half nut, and the second electromagnet can be mutually attracted with the half nut, the clamping jaw on the chuck body can be fixed, and meanwhile, the clamping jaw can be detached and mounted easily, and meanwhile, the chuck device of the machine tool can carry out eccentric clamping and clamping of a different machining workpiece.
(2) According to the invention, through the arrangement of the rectangular through holes, one end of the movable rod far away from the rotating rod penetrates through the second mounting groove and stretches into the rectangular through holes, so that the movable rod can fix the screw rod while fixing the clamping jaw on the chuck body.
(3) According to the invention, through the arrangement of the bevel gear and the rectangular groove, the bevel gear can be controlled to rotate through the positions of the rectangular groove and the rectangular through hole at the end of the movable rod far away from the rotating rod, and the screw is not driven to rotate, or the bevel gear is driven to rotate.
(4) According to the invention, the sliding cavity, the second electromagnet and the magnetic poles which are mutually exclusive or mutually attractive with the second electromagnet are arranged on the half nut, and the clamping jaw is controlled to move along the direction of the screw rod away from or the direction of the screw rod close to the half nut by controlling the magnetic poles which are mutually exclusive or mutually attractive with the half nut at one end of the second electromagnet close to the half nut, so that the scraps of the first mounting groove can be conveniently cleaned.
(5) According to the invention, the moving rod is provided with the moving block, the first sliding rod, the spring, the second sliding rod and the limiting block, when the second electromagnet and the half nut have the same magnetic pole, so that after the claw moves along the direction of the screw rod away from the moving block, the half nut and the screw rod are in threaded connection, the moving block moves into the rectangular through hole from the rectangular groove, the conical gear does not drive the screw rod to rotate, then, when the magnetic pole of the second electromagnet, which is close to the half nut, is changed to enable the magnetic pole of the second electromagnet to be opposite to the magnetic pole of the half nut, the claw moves towards the direction of the screw rod under the combined action of the half nut and the second electromagnet, the moving block moves into the rectangular groove from the rectangular through hole, the half nut and the screw rod can be in threaded connection again, and the conical gear can drive the screw rod to rotate again.
(6) According to the invention, the contact switch sheet and the moving rod are arranged as the moving block, the first sliding rod, the spring, the second sliding rod and the limiting block, so that the machine tool chuck device can clamp the special-shaped workpiece to be machined relatively intelligently.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the structure of FIG. 1E according to the present invention;
FIG. 3 is a cross-sectional view of a first view of the present invention;
FIG. 4 is a cross-sectional view of a second view of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4A according to the present invention;
FIG. 6 is a schematic diagram of the structure of FIG. 4B in accordance with the present invention;
FIG. 7 is a schematic view of the structure of FIG. 4C according to the present invention;
FIG. 8 is a schematic top view of the present invention;
fig. 9 is a schematic diagram of the structure of fig. 8D according to the present invention.
Detailed Description
Example 1: referring to fig. 1-9, a machine tool chuck device comprises a chuck body 1, and at least two clamping mechanisms 2 and a driving device 3 mounted on the chuck body 1 and arranged in a circumferential array.
The clamping mechanism 2 comprises a jaw 201 moving radially along the chuck body 1, a first moving ring 205, a slide block 206, a rotating rod 208, a moving rod 209 and a half nut 211; a first mounting groove 101 for the clamping jaw 201 to move along the radial direction of the chuck body 1 is formed in the top wall of the chuck body 1; a screw 212 which is in threaded engagement with the half nut 211 is installed in the first installation groove 101.
The first moving ring 205 is fixedly connected between the half nut 211 and the claw 201; a sliding groove 201a for the sliding block 206 to move is formed in the bottom end of the clamping jaw 201, one end of the sliding block 206 is arranged in the sliding groove 201a, and the other end of the sliding block extends out of the sliding groove 201a; a second mounting groove 102 is formed in the peripheral wall of the chuck body 1; the rotation rod 208 is rotatably connected between the movement rod 209 and the sliding block 206, and one end of the movement rod 209 away from the rotation rod 208 extends into the second mounting groove 102 for fixing the jaw 201 along the chuck body 1, and simultaneously, the jaw 201 on the chuck body 1 is convenient to detach.
The driving device 3 is used for driving the screw 212 on the clamping mechanism 2 to rotate; slide cavities 213 corresponding to the number of the screw rods 212 and parallel to the length direction of the screw rods 212 are arranged in the chuck body 1; a second electromagnet 401 sliding along the length direction of the sliding cavity 213 is arranged in the sliding cavity 213; the side of the half nut 211 away from the moving ring 205 has a magnetic pole, and the second electromagnet 401 can attract the half nut 211 mutually; the length direction of the slide cavity 213, the moving direction of the jaws 201 along the radial direction of the chuck body 1 and the moving direction of the slide block 206 in the slide groove 201a are parallel to each other.
The half nut 211 is meshed with the screw rod 212, and the second electromagnet 401 and the half nut 211 attract each other, so that the second electromagnet 401 and the half nut 211 are combined to fix the function of the clamping jaw 201, on the one hand, and when the screw rod 212 rotates forward or reversely, the screw rod 212 can be matched with the half nut 211, so that the clamping jaw 201 on the chuck body 1 moves back and forth along the radial direction of the chuck body 1; on the other hand, the half nut 211 is meshed with the screw 212, the second electromagnet 401 and the half nut 211 are attracted mutually, the rotating rod 208 is rotatably connected between the moving rod 209 and the sliding block 206, and the end of the moving rod 209 away from the rotating rod 208 extends into the second mounting groove 102, so that the clamping jaw 201 is convenient to detach and the clamping jaw 201 is better fixed; when the jaws 201 move in the radial direction of the chuck body 1, one end of the moving rod 209, which is far away from the rotating rod 208, is not always separated from the second mounting groove 102.
Working principle: when in use, the second electromagnet 401 is started, so that the second electromagnet 401 and the half nut 211 are attracted to each other, and the half nut 211 is in threaded connection with the screw 212; then, starting the driving device 3, enabling the driving device 3 to drive the screw 212 to rotate, enabling the screw 212 to rotate and drive the half nut 211 to move along the length direction of the screw 212, enabling the clamping jaws 201 on the chuck body 1 to be far away from each other, and then placing the workpiece to be clamped between the clamping jaws 201; the driving device 3 is controlled to drive the screw 212 to rotate, so that the screw 212 rotates to drive the half nut 211 to move along the length direction of the screw 212, and the clamping jaws 201 on the chuck body 1 are close to each other, so that the clamping jaws 201 on the chuck body 1 clamp the workpiece to be clamped.
When the clamping jaw 201 of the chuck body 1 is disassembled, the second electromagnet 401 is stopped to be electrified, the clamping jaw 201 is moved upwards firstly, the half nut 211 and the screw rod 212 are in threaded connection cancellation, then the clamping jaw 201, the sliding block 206, the rotating rod 208 and the moving rod 209 are pulled outwards of the chuck body 1 along the length direction of the screw rod 212, the clamping jaw 201 is pulled out of the first mounting groove 101, and the moving rod 209 is moved out of the second mounting groove 102, so that the disassembly of the clamping jaw 201 can be completed.
When the clamping jaw 201 is installed, the moving rod 209 is inserted into the second installation groove 102, then the clamping jaw 201 is placed into the first installation groove 101, after the clamping jaw 201 is moved to a proper position, the clamping jaw 201 is moved along the direction that the clamping jaw 201 is close to the screw 212, and the half nut 211 is in threaded connection with the screw 212, so that the clamping jaw 201 can be installed.
The machine tool chuck device can carry out eccentric clamping and clamping work of different-property machining workpieces: the second electromagnet 401 is stopped from being electrified, the workpiece to be clamped is firstly placed between the clamping jaws 201, the relative positions of the half nuts 211 on the corresponding clamping jaws 201 on the screw 212 are correspondingly adjusted respectively, and accordingly the relative positions of the clamping jaws 201 are adjusted, and the clamping jaws 201 on the bed chuck device can be enabled to perform eccentric clamping and clamping work of different-type machining workpieces.
Example 2: 1-9, embodiment 2 is further modified on the basis of embodiment 1 in that the end of the screw 212 is provided with a rectangular through hole 212a matching with the shape of the moving rod 209; the second mounting groove 102 is opposite to the rectangular through hole 212a, and the second mounting groove 102 communicates with the first mounting groove 101; the end of the moving lever 209 remote from the rotating lever 208, extends through the second mounting slot 102 into the rectangular through hole 212a; the inner side wall of the sliding groove 201a and the outer side wall of the sliding block 206 near one end of the sliding groove 201a are respectively provided with a friction layer, the jaw 201 does not move relative to the slider 206 without the action of external force.
The rotating rod 208 is close to one end of the moving rod 209 and can rotate relative to the central axis of the moving rod 209, the rotating rod 208 and the moving rod 209 are connected by adopting a suspension ball head, a connecting rod may be disposed between the moving rod 209 and the rotating rod 208, the connecting rod may rotate relative to the central axis of the moving rod 209, and the connecting rod is rotationally connected with the rotating rod 208; the moving rod 209 is inserted into the rectangular through hole 212a, so that the screw 212 can be fixed by passing through the moving rod 209 through the rectangular through hole 212a without fixing it by other fixing components.
Example 3: 1-9, embodiment 3 is further modified from embodiment 2 in that the end of the screw 212 remote from the rotary rod 208 is provided with a bevel gear 301; a rectangular groove 301a is formed in one side, close to the screw 212, of the conical gear 301, and the rectangular through hole 212a is communicated with the rectangular groove 301 a; the end of the moving lever 209 remote from the rotating lever 208 sequentially passes through the second mounting groove 102 and the rectangular through hole 212a to protrude into the rectangular groove 301 a.
By forming the rectangular groove 301a, one end of the moving rod 209 far away from the rotating rod 208 can be inserted into the rectangular groove 301a, and by moving the position of the end of the moving rod 209 far away from the rotating rod 208, the conical gear 301 can be controlled to drive the screw 212 to rotate; when the end of the moving rod 209 far from the rotating rod 208 moves from the rectangular through hole 212a into the rectangular groove 301a, the conical gear 301 can drive the screw 212 to rotate; when the end of the moving lever 209 away from the rotating lever 208 is moved out of the rectangular groove 301a, the bevel gear 301 rotates without driving the screw 212 to rotate.
Example 4: 1-9, embodiment 4 is a further improvement on the basis of embodiment 3, wherein the clamping mechanism 2 further comprises a blocking support block 204, a first guide rod 203, a guide hole 207 and a second guide rod 210; the guide hole 207 is formed on the side wall of the sliding block 206 and is positioned outside the sliding groove 201a; one end of the first guide rod 203 is fixedly connected with the inner side wall of the first installation groove 101, the other end of the first guide rod passes through the first moving ring 205 and is connected with one end of the second guide rod 210, the other end of the second guide rod 210 passes through the guide hole 207 and is detachably connected with the blocking support block 204, and the second guide rod 210 and the blocking support block 204 can be clamped or in threaded connection.
The central axis of the first guide rod 203, the length direction of the sliding cavity 213, the radial moving direction of the clamping jaw 201 along the chuck body 1 and the moving direction of the sliding block 206 in the sliding groove 201a are parallel to each other; a limiting groove for limiting the sliding block 206 is formed between the blocking support block 204 and the first guide rod 203, and the sliding block 206 can move up and down relative to the second guide rod 210; the second electromagnet 401 can be far away from the moving ring with the half nut 211 205 are attracted to or repulsed from each other; when the second electromagnet 401 is powered in the positive direction, the side of the second electromagnet 401 close to the half nut 211 is a magnetic pole which is attracted with the half nut 211, whereas when the second electromagnet 401 is powered in the negative direction, the side of the second electromagnet 401 close to the half nut 211 is a magnetic pole which is mutually exclusive with the half nut 211, and the half nut 211 moves upwards; the chuck body 1 and the screw 212 are made of non-metal materials.
By controlling the magnetic pole of the second electromagnet 401, the claw 201 can move up and down along the length direction of the guide hole 207, thereby facilitating cleaning of the first mounting groove 101.
When the side of the second electromagnet 401 near the half nut 211 is a magnetic pole that repels the half nut 211, the second electromagnet 401 and the half nut 211 repel each other, so that the jaw 201 moves along the first guide rod 203 away from the screw 212 through the first moving ring 205, the jaw 201 moves the slider 206 along the length direction of the guide hole 207, and the slider 206 pulls the rotating rod 208 to move the end of the moving rod 209 away from the rotating rod 208, so that the rotating rod 212 is not driven to rotate when the conical gear 301 rotates.
When the clamping jaw 201 of the chuck body 1 is disassembled, the limit of the blocking support block 204 to the sliding block 206 is canceled, the clamping jaw 201 is moved upwards firstly, the half nut 211 and the screw rod 212 are in threaded connection cancellation, then the clamping jaw 201, the sliding block 206, the rotating rod 208 and the moving rod 209 are pulled outwards of the chuck body 1 along the length direction of the screw rod 212, the clamping jaw 201 is pulled out of the first mounting groove 101, and the moving rod 209 is moved out of the second mounting groove 102, so that the disassembly of the clamping jaw 201 can be completed.
When the clamping jaw 201 is installed, the moving rod 209 is inserted into the second installation groove 102, the second guide rod 210 passes through the guide hole 207 on the sliding block 206, and the blocking support block 204 is installed at one end of the second guide rod 210 far away from the first guide rod 203; then, the clamping jaw 201 is placed into the first mounting groove 101, after the clamping jaw 201 is moved to a proper position, the clamping jaw 201 is moved along the direction that the clamping jaw 201 is close to the screw 212, and the half nut 211 is in threaded connection with the screw 212, so that the clamping jaw 201 can be mounted.
Example 5: 1-9, embodiment 5 is a further improvement on the basis of embodiment 4 in that the driving device 3 comprises a forward and reverse motor and a bevel gear 301; the bottom end of the chuck body 1 is provided with an installation cavity 302, and the installation cavity 302 is communicated with the first installation groove 101; the conical gear 301 is installed in the installation cavity 302, one end of the conical gear 301 is meshed with the conical gear 301, a gear shaft is installed on the conical gear 301, and the gear shaft is connected with the output end of the positive and negative motor.
The moving lever 209 includes a moving block 209a, a first slide bar 209b, a spring 209c, a second slide bar 209d, and a stopper 209f; the second slide bar 209d is fixedly connected between the first slide bar 209b and the stopper 209f; the moving block 209a is sleeved on the second slide bar 209d in a sliding way, and the spring 209c is sleeved on the second slide bar 209d and is positioned between the moving block 209a and the first slide bar 209 b; the first slide bar 209b, the moving block 209a, and the rectangular groove 301a and the rectangular through hole 212a have the same cross-sectional shape.
The ends of the clamping jaws 201, which are close to each other, are respectively provided with a contact switch piece, the contact switch pieces are used for controlling the second electromagnets 401 corresponding to the half nuts 211 on the clamping jaws 201 where the contact switch pieces are positioned to be electrified with positive and negative currents, and when a workpiece to be clamped is closely contacted with the contact switch pieces corresponding to the half nuts 211 on the clamping jaws 201, the current electrified by the second electromagnets 401 corresponding to the half nuts 211 on the clamping jaws 201 can enable one side of the second electromagnets 401, which is close to the half nuts 211, to be provided with mutually exclusive magnetic poles, so that the half nuts 211 on the clamping jaws 201 are separated from the screw 212 in threaded connection with the second electromagnets; when the workpiece to be clamped is in contact with all the clamping jaws 201 on the chuck body 1, the second electromagnets 401 on all the clamping mechanisms 2 are electrified with opposite currents, so that one sides, close to the half nuts 211, of the second electromagnets 401 are provided with magnetic poles which attract each other, the half nuts 211 are tightly attached to the screw 212, the nuts 211 are continuously in threaded connection with the screw 212, and the machine tool chuck device can clamp the abnormal workpiece or the eccentric workpiece through the arrangement of the contact switch.
The central axes of the rectangular groove 301a, the rectangular through hole 212a, the second mounting groove 102, and the screw 212 overlap.
With the arrangement of the moving rod 209, when the side, close to the half nut 211, of the second electromagnet 401 is a magnetic pole which repels the half nut 211, the second electromagnet 401 and the half nut 211 repel each other, so that the jaw 201 moves along the first guide rod 203 in a direction away from the screw 212 through the first moving ring 205, the jaw 201 moves the sliding block 206 along the length direction of the guide hole 207, the sliding block 206 pulls the rotating rod 208 so that the limiting block 209f pulls the moving block 209a to move out of the rectangular groove 301a into the rectangular through hole 212a, and connection of the moving rod 209 to the conical gear 301 and the screw 212 is canceled, and when the conical gear 301 rotates, the conical gear 301 does not drive the screw 212 to rotate.
When the half nut 211 is positioned at one side of the claw 201 far from the screw 212, when the half nut 211 is not in threaded connection with the screw 212, the magnetic pole of one side of the second electromagnet 401 close to the half nut 211 is adjusted, so that when one side of the second electromagnet 401 close to the half nut 211 is a magnetic pole which is mutually attracted with the half nut 211, as the second electromagnet 401 and the half nut 211 are mutually attracted, the half nut 211 moves towards the direction close to the screw 212, the claw 201 is pulled by the first moving ring 205 to move into the first mounting groove 101, when the claw 201 moves towards the direction close to the screw 212, the sliding block 206 moves along the length direction of the guide hole 207 and pushes the first sliding rod 209b towards the direction close to the rectangular groove 301a by the rotating rod 208, the first sliding rod 209b pushes the spring 209c, when the moving block 209a moves into the rectangular groove 301a, and when the conical gear 301 rotates, the conical gear 301 can drive the screw 212 to rotate.
The purpose of the spring 209c, the moving block 209a, the limiting block 209f, the second sliding rod 209d and the first sliding rod 209b is that when one side of the second electromagnet 401 close to the half nut 211 is a magnetic pole which is mutually exclusive with the half nut 211, the half nut 211 is separated from the screw 212, the moving block 209a moves out of the rectangular groove 301a and enters the rectangular through hole 212a, the connection of the moving rod 209 to the bevel gear 301 and the screw 212 is canceled, and when the bevel gear 301 rotates, the bevel gear 301 does not drive the screw 212 to rotate; when the side of the second electromagnet 401 near the half nut 211 is a magnetic pole which attracts the half nut 211 mutually, when the half nut 211 moves towards the direction near the screw rod 212, the half nut 211 and the screw rod 212 can be just meshed when the half nut 211 is closely attached to the screw rod 212, and the moving block 209a can smoothly move from the rectangular through hole 212a to the rectangular groove 301a, so that when the bevel gear 301 rotates, the bevel gear 301 can continuously drive the screw rod 212 to rotate, and the relative positions of the clamping jaws 201 on the chuck body 1 can be adjusted.
Implementation of the embodiments example 6: please refer to: 1-9, embodiment 6 is further improved on the basis of any one of embodiments 1-5, wherein baffles 201b of the clamping jaw 201 along the radial moving direction of the chuck body 1 are arranged on two opposite side walls of the clamping jaw 201; the section of the baffle 201b is a right triangle, and the baffle 201b is provided with an inclined surface which is inclined towards the top wall close to the chuck body 1; bottom of baffle 201b and chuck the top wall of the body 1 is connected in a sliding way; the end of the shutter 201b in the radial movement direction of the chuck body 1 is flush with the end of the jaws 201. The purpose of the baffle 201b is to prevent some debris from falling into the first mounting groove 101 when the chuck device is in use, particularly when the plurality of jaws 201 on the chuck body 1 are approaching or moving away from each other.
Example 7: 1-9, embodiment 7 is further improved on the basis of embodiment 6, wherein a columnar fixing portion 104 is arranged at the right center of the top end of the chuck body 1, and an elastic film 105 is sleeved and fixed on the columnar fixing portion 104; the side wall of the clamping jaw 201, which is close to the central axis of the chuck body 1, is detachably provided with a fixing strip, and one side wall of the fixing strip, which is far away from the clamping jaw 201, is fixed with the end part of the elastic membrane 105; the length of the fixing strip is larger than the width of the clamping jaw 201; when the plurality of jaws 201 are separated from each other, the elastic membrane 105 is opened, the elastic membrane 105 is in an inverted cone shape, and the elastic membrane 105 is used for blocking some scraps from entering the first mounting groove 101 during the use process of the chuck device.
Claims (6)
1. A machine tool chuck device, characterized in that: comprises a chuck body (1), and at least two clamping mechanisms (2) and a driving device (3) which are arranged on the chuck body (1) and are in a circumferential array;
the clamping mechanism (2) comprises a claw (201) moving along the radial direction of the chuck body (1), a first moving ring (205), a sliding block (206), a rotating rod (208), a moving rod (209) and a half nut (211); a first mounting groove (101) for the clamping jaw (201) to move along the radial direction of the chuck body (1) is formed in the top wall of the chuck body (1);
a screw (212) which is in threaded engagement with the half nut (211) is arranged in the first mounting groove (101);
the first movable ring (205) is fixedly connected between the half nut (211) and the clamping jaw (201); a sliding groove (201 a) for the sliding block (206) to move is formed in the bottom end of the claw (201), one end of the sliding block (206) is arranged in the sliding groove (201 a), and the other end of the sliding block extends out of the sliding groove (201 a);
a second mounting groove (102) is formed in the peripheral wall of the chuck body (1); the rotating rod (208) is rotatably connected between the moving rod (209) and the sliding block (206), and one end of the moving rod (209) far away from the rotating rod (208) extends into the second mounting groove (102); the driving device (3) is used for driving the screw rod (212) to rotate;
sliding cavities (213) which correspond to the screw rods (212) in number and are parallel to the length direction of the screw rods (212) are arranged in the chuck body (1); a second electromagnet (401) sliding along the length direction of the sliding cavity (213) is arranged in the sliding cavity (213);
the side of the half nut (211) far away from the moving ring (205) is provided with a magnetic pole, and the second electromagnet (401) can be attracted with the half nut (211) mutually; the length direction of the sliding cavity (213), the radial moving direction of the clamping jaw (201) along the chuck body (1) and the moving direction of the sliding block (206) in the sliding groove (201 a) are mutually parallel;
a rectangular through hole (212 a) matched with the shape of the movable rod (209) is formed at the end part of the screw rod (212);
the second mounting groove (102) is opposite to the rectangular through hole (212 a), and the second mounting groove (102) is communicated with the first mounting groove (101);
one end of the moving rod (209), which is far away from the rotating rod (208), passes through the second mounting groove (102) and stretches into the rectangular through hole (212 a);
the end part of the screw rod (212) far away from the rotating rod (208) is provided with a conical gear (301);
a rectangular groove (301 a) is formed in one side, close to the screw (212), of the conical gear (301), and the rectangular through hole (212 a) is communicated with the rectangular groove (301 a);
one end of the moving rod (209), which is far away from the rotating rod (208), sequentially passes through the second mounting groove (102) and the rectangular through hole (212 a) and stretches into the rectangular groove (301 a);
the section of the second mounting groove (102) is circular, and the first sliding rod (209 b) can rotate along the central axis of the second mounting groove (102);
the clamping mechanism (2) further comprises a blocking support block (204), a first guide rod (203), a guide hole (207) and a second guide rod (210);
the guide hole (207) is formed in the side wall of the sliding block (206) and is positioned outside the sliding groove (201 a);
one end of a first guide rod (203) is fixedly connected with the inner side wall of the first mounting groove (101), the other end of the first guide rod passes through the first moving ring (205) to be connected with one end of a second guide rod (210), and the other end of the second guide rod (210) passes through a guide hole (207) to be detachably connected with the blocking support block (204);
the central axis of the first guide rod (203), the length direction of the sliding cavity (213), the radial moving direction of the clamping jaw (201) along the chuck body (1) and the moving direction of the sliding block (206) in the sliding groove (201 a) are mutually parallel;
a limiting groove for limiting the sliding block (206) is formed between the blocking support block (204) and the first guide rod (203), and the sliding block (206) can move up and down relative to the second guide rod (210);
the second electromagnet (401) can attract or repel the magnetic pole of the side of the half nut (211) away from the moving ring (205);
when the second electromagnet (401) is electrified positively, one side of the second electromagnet (401) close to the half nut (211) is a magnetic pole which is mutually attracted with the half nut (211), otherwise, when the second electromagnet (401) is electrified negatively, one side of the second electromagnet (401) close to the half nut (211) is a magnetic pole which is mutually exclusive with the half nut (211), and the half nut (211) moves upwards;
the chuck body (1) and the screw (212) are made of nonmetallic materials;
the moving rod (209) comprises a moving block (209 a), a first sliding rod (209 b), a spring (209 c), a second sliding rod (209 d) and a limiting block (209 f);
the second sliding rod (209 d) is fixedly connected between the first sliding rod (209 b) and the limiting block (209 f);
the moving block (209 a) is sleeved on the second slide bar (209 d) in a sliding way, and the spring (209 c) is sleeved on the second slide bar (209 d) and is positioned between the moving block (209 a) and the first slide bar (209 b);
the first slide bar (209 b), the moving block (209 a) and the rectangular groove (301 a) and the rectangular through hole (212 a) have the same cross-sectional shape.
2. A machine tool chuck device as set forth in claim 1, wherein: baffles (201 b) of the clamping jaws (201) along the radial moving direction of the chuck body (1) are arranged on two opposite side walls of the clamping jaws (201);
the section of the baffle plate (201 b) is in a right triangle shape, the baffle plate (201 b) is provided with an inclined surface, and the inclined surface is inclined close to the top wall of the chuck body (1);
the bottom of the baffle plate (201 b) is in sliding connection with the top wall of the chuck body (1);
the end of the baffle plate (201 b) along the radial moving direction of the chuck body (1) is flush with the end of the clamping jaw (201).
3. A machine tool chuck device as set forth in claim 2, wherein: a columnar fixing part (104) is arranged at the right center of the top end of the chuck body (1), and an elastic membrane (105) is sleeved and fixed on the columnar fixing part (104);
the side wall of the clamping jaw (201) close to the central axis of the chuck body (1) is detachably provided with a fixing strip, and the side wall of the fixing strip far away from the clamping jaw (201) is fixed with the end part of the elastic membrane (105); the length of the fixing strip is larger than the width of the clamping jaw (201);
when the claws (201) are far away from each other, the elastic membrane (105) is opened, and the elastic membrane (105) is in an inverted cone shape.
4. A machine tool chuck device as set forth in claim 1, wherein: one ends of the clamping jaws (201) close to each other are provided with contact switch sheets, and the contact switch sheets are used for controlling second electromagnets (401) corresponding to half nuts (211) on the clamping jaws (201) where the contact switch sheets are positioned to enable positive and negative currents to be conducted.
5. A machine tool chuck device as set forth in claim 1, wherein: the central axes of the rectangular groove (301 a), the rectangular through hole (212 a), the second mounting groove (102) and the screw (212) are overlapped.
6. A machine tool chuck device as set forth in claim 1, wherein: the driving device (3) comprises a forward and reverse rotation motor and a bevel gear (301);
the bottom end of the chuck body (1) is provided with an installation cavity (302), and the installation cavity (302) is communicated with the first installation groove (101);
the conical gear (301) is arranged in the mounting cavity (302), one end of the conical gear is meshed with the conical gear (301), a gear shaft is arranged on the conical gear (301), and the gear shaft is connected with the output end of the positive and negative motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211431293.XA CN115740533B (en) | 2022-11-14 | 2022-11-14 | Machine tool chuck device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211431293.XA CN115740533B (en) | 2022-11-14 | 2022-11-14 | Machine tool chuck device |
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| CN115740533A CN115740533A (en) | 2023-03-07 |
| CN115740533B true CN115740533B (en) | 2023-06-20 |
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| CN202211431293.XA Active CN115740533B (en) | 2022-11-14 | 2022-11-14 | Machine tool chuck device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116728239B (en) * | 2023-08-14 | 2023-11-10 | 绵阳奥力达科技有限公司 | Stepped end surface polishing device for high-pressure oil pump seat |
| CN117103076B (en) * | 2023-10-09 | 2024-04-12 | 河北燕山钢铁集团有限公司 | Recycling device for waste materials for electric furnace production |
| CN117696944B (en) * | 2024-02-06 | 2024-04-05 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1214288A (en) * | 1997-10-12 | 1999-04-21 | 潘忠勋 | Multipurpose three-jaw chuck |
| CN108311720A (en) * | 2017-01-16 | 2018-07-24 | 北海和思科技有限公司 | A kind of self-centering's four paws fixture |
| CN108857542A (en) * | 2017-05-10 | 2018-11-23 | 周杭 | It is a kind of to be machined the dedicated three chucking chuck for being convenient to clean iron filings |
| CN107159919B (en) * | 2017-07-24 | 2018-11-23 | 南华大学 | Special-shaped rocket bay section machine adds fixture |
| CN209062176U (en) * | 2018-11-20 | 2019-07-05 | 陕西蓝天金盾人防设备工程有限公司 | A kind of drilling machine clamping device |
| CN209407461U (en) * | 2018-12-25 | 2019-09-20 | 平湖市众川机械有限公司 | A kind of cylindrical workpiece turning clamp |
| CN210451038U (en) * | 2019-09-09 | 2020-05-05 | 温岭哈斯特机械有限公司 | Lathe chuck structure |
| CN210937207U (en) * | 2019-09-24 | 2020-07-07 | 重庆萨博途斯机器人工具有限公司 | Manual clamp |
| CN211218740U (en) * | 2019-10-09 | 2020-08-11 | 上海予皋精密工具有限公司 | Workpiece clamp for machine tool |
| CN211661530U (en) * | 2020-03-11 | 2020-10-13 | 石家庄宏昌泵业有限公司 | Slurry pump impeller tool |
| CN215356241U (en) * | 2021-07-28 | 2021-12-31 | 嘉兴正道机械科技有限公司 | High-efficient chuck structure |
| CN216461834U (en) * | 2022-01-07 | 2022-05-10 | 昆山旭锐通精密机械有限公司 | Disc-shaped part clamping and positioning chuck |
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Effective date of registration: 20230531 Address after: No. 11, Group 7, Chishan Village, Pingqiao Town, Tiantai County, Taizhou City, Zhejiang Province, 317200 Applicant after: Xu Qiongyang Address before: 311100 Second floor, Building 7, No. 7, Yufeng Road, Xianlin Street, Yuhang District, Hangzhou, Zhejiang Applicant before: Hangzhou Hangchen Intelligent Technology Co.,Ltd. Applicant before: Xu Qiongyang |
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