CN115740533A - Machine tool chuck device - Google Patents
Machine tool chuck device Download PDFInfo
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- CN115740533A CN115740533A CN202211431293.XA CN202211431293A CN115740533A CN 115740533 A CN115740533 A CN 115740533A CN 202211431293 A CN202211431293 A CN 202211431293A CN 115740533 A CN115740533 A CN 115740533A
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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
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Abstract
The invention discloses a chuck device of a machine tool, and belongs to the technical field of chucks. A machine tool chuck device comprises a chuck body, at least two clamping mechanisms and a driving device, wherein the at least two clamping mechanisms and the driving device are arranged on the chuck body and are in a circumferential array; the clamping mechanism comprises a clamping jaw, a first moving ring, a sliding block, a rotating rod, a moving rod and a half nut, wherein the clamping jaw 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 meshed with the half nut thread is arranged in the first mounting groove; the first moving ring is fixedly connected between the half nut and the clamping jaw; the bottom end of the clamping jaw 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 detached easily, and eccentric clamping and clamping of workpieces processed in different shapes can be performed.
Description
Technical Field
The invention relates to the field of chucks, in particular to a chuck device of a machine tool.
Background
Claw on current chuck is when meetting some circumstances, for example the piece gets into the draw-in groove, can die the jack catch card, if want to get rid of the piece in the draw-in groove, need demolish the jack catch from the draw-in groove and just can clear up the piece in the draw-in groove, and the inconvenient dismantlement of jack catch and the installation on current chuck need twist a plurality of screws, and is comparatively troublesome
In addition, the existing chuck can not carry out eccentric clamping and clamping of workpieces processed by different types, and in order to solve the technical problems, the invention aims to develop a chuck device of a machine tool.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a machine tool chuck device which can easily disassemble a clamping jaw on a chuck and can also carry out eccentric clamping and clamping of workpieces processed by different types.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A machine tool chuck device comprises a chuck body, at least two clamping mechanisms and a driving device, wherein the at least two clamping mechanisms and the driving device are arranged on the chuck body and are in a circumferential array; the clamping mechanism comprises a clamping jaw, a first moving ring, a sliding block, a rotating rod, a moving rod and a half nut, wherein the clamping jaw 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 meshed with the half nut thread is arranged in the first mounting groove; the first moving ring is fixedly connected between the half nut and the clamping jaw; the bottom end of the clamping jaw 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, 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; the chuck body is internally provided with sliding cavities which correspond to the screw rods in number and are parallel to the length direction of the screw rods; a second electromagnet which slides along the length direction of the sliding cavity is arranged in the sliding cavity; one side of the half nut, which is far away from the moving ring, is provided with a magnetic pole, and the second electromagnet can attract the half nut; 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.
Furthermore, the end part of the screw rod is provided with a rectangular through hole matched with the shape of the movable rod; the second mounting groove is opposite to the rectangular through hole and communicated with the first mounting groove; the movable rod is far away from one end of the rotating rod and penetrates through the second mounting groove to extend into the rectangular through hole.
Furthermore, a conical gear is arranged at the end part of the screw rod, which is far away from the rotating rod; one side of the conical gear, which is close to the screw rod, is provided with a rectangular groove, 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 extends into the rectangular groove; the section shape of the second mounting groove is circular, and the first sliding rod can rotate along the central axis of the second mounting groove.
Furthermore, the clamping mechanism also comprises a blocking supporting block, a first guide rod, a guide hole and a second guide rod; the guide hole is formed in the side wall of the sliding block and is located 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 chute are mutually parallel; a limiting groove for limiting the sliding block is formed between the blocking supporting 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 each other with the magnetic pole on one side of the half nut far away from the moving ring; when the second electromagnet is electrified in a positive direction, one side of the second electromagnet, which is close to the half nut, is a magnetic pole which is mutually attracted with the half nut, on the contrary, when the second electromagnet is electrified in a negative direction, one side of the second electromagnet, which is 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 rod are made of non-metal 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 and slidably connected to the second slide bar, and the spring is sleeved on the second slide bar and positioned between the moving block and the first slide bar; the first sliding rod, the moving block, the rectangular groove and the rectangular through hole are the same in cross section shape and size.
Furthermore, two opposite side walls of the clamping jaw are provided with a baffle plate of the clamping jaw along the radial moving direction of the chuck body; the section of the baffle is in a right-angled triangle shape, and the baffle is provided with an inclined surface which inclines towards the top wall close to the chuck body; the bottom of the baffle is in sliding connection with the top wall of the chuck body; the end of the baffle along the radial moving direction of the chuck body is flush with the end of the clamping jaw.
Furthermore, a columnar fixing part is arranged at the center of the top end of the chuck body, and an elastic membrane is sleeved and fixed on the columnar fixing part; the side wall of the clamping jaw close to the central axis of the chuck body is detachably provided with a fixing strip, and one side wall of the fixing strip far away from the clamping jaw is fixed with the end part of the elastic membrane; the length of the fixing strip is greater than the width of the clamping jaw; when a plurality of jack catchs kept away from each other, the elastic membrane opens, and the elastic membrane is the back taper.
Furthermore, one end of each of the clamping jaws close to each other is provided with a contact switch piece, and the contact switch pieces are used for controlling the second electromagnets corresponding to the half nuts on the clamping jaws where the contact switch pieces are located to be switched on positive and negative currents.
Furthermore, the central axes of the rectangular groove, the rectangular through hole, the second mounting groove and the screw rod are overlapped.
Further, the driving device comprises a forward and reverse rotating 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 bevel gear is arranged in the mounting cavity, one end of the bevel gear is meshed with the bevel gear, a gear shaft is arranged on the bevel 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, the first moving ring, the sliding block, the rotating rod, the moving rod, the sliding block, the sliding chute, the half nut, the second mounting groove, the screw rod, the magnetic pole arranged on one side of the half nut far away from the moving ring and the second electromagnet can be mutually attracted with the half nut, so that not only can the clamping jaw on the chuck body be fixed, but also the clamping jaw can be easily disassembled and mounted, and meanwhile, the machine tool chuck device can be used for eccentric clamping and clamping of workpieces processed in different shapes.
(2) According to the chuck, through the arrangement of the rectangular through hole, one end of the moving rod, which is far away from the rotating rod, penetrates through the second mounting groove and extends into the rectangular through hole, so that the moving rod can fix the clamping jaw on the chuck body and can also fix the screw rod.
(3) According to the invention, through the arrangement of the conical gear and the rectangular groove, the rotation of the conical gear can be controlled by moving one end of the movable rod, which is far away from the rotating rod, at the positions of the rectangular groove and the rectangular through hole, so that the rotation of the conical gear can be controlled without driving the rotation of the screw rod, or the rotation of the conical gear drives the rotation of the screw rod.
(4) According to the invention, the sliding cavity, the second electromagnet and the magnetic poles which are mutually repelled or attracted with the second electromagnet are arranged on the half nut, and the magnetic poles which are mutually attracted or repelled with the half nut are arranged at one end of the second electromagnet close to the half nut to control the clamping jaw to move along the direction far away from or close to the screw rod, so that the chips in the first mounting groove can be conveniently cleaned.
(5) According to the invention, the moving rod is arranged to be 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 are provided with the same magnetic poles, after the clamping jaw moves along the direction far away from the screw rod, the half nut and the screw rod are not 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 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 clamping jaw moves towards the direction close to the screw rod under the combined action of the half nut and the second electromagnet, the moving block moves into the rectangular through hole 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 machine tool chuck device can relatively intelligently clamp the special-shaped workpiece to be machined by arranging the contact switch piece and the moving rod as the moving block, the first sliding rod, the spring, the second sliding rod and the limiting block.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the structure of FIG. 1 at E according to the present invention;
FIG. 3 is a cross-sectional view from a first perspective of the present invention;
FIG. 4 is a cross-sectional view from a second perspective of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 at A according to the present invention;
FIG. 6 is a schematic view of the structure of FIG. 4 at B in accordance with the present invention;
FIG. 7 is a schematic view of the structure of FIG. 4 at C;
FIG. 8 is a schematic top view of the present invention;
fig. 9 is a schematic structural view at D in fig. 8 according to the present invention.
Detailed Description
Example 1: referring to fig. 1-9, a machine chuck device includes a chuck body 1, and at least two clamping mechanisms 2 and a driving device 3 mounted on the chuck body 1 in a circumferential array.
The clamping mechanism 2 comprises a jaw 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; the top wall of the chuck body 1 is provided with a first mounting groove 101 for the clamping jaw 201 to move along the radial direction of the chuck body 1; a screw 212 threadedly engaged with the half nut 211 is installed in the first installation groove 101.
The first mobile ring 205 is fixedly connected between the half nut 211 and the pawl 201; the bottom end of the claw 201 is provided with a sliding groove 201a for the sliding block 206 to move, one end of the sliding block 206 is arranged in the sliding groove 201a, and the other end of the sliding block 206 extends out of the sliding groove 201a; a second mounting groove 102 is formed in the peripheral wall of the chuck body 1; the dwang 208 rotates to be connected between transfer arm 209 and slider 206, and the one end that the dwang 208 was kept away from to the transfer arm 209 stretches into to the second mounting groove 102 in for fixed claw 201 along on the chuck body 1, the convenient claw 201 of dismantling on the chuck body 1 simultaneously.
The driving device 3 is used for driving the screw 212 on the clamping mechanism 2 to rotate; the chuck body 1 is internally provided with sliding cavities 213 which correspond to the screw rods 212 in number and are parallel to the length direction of the screw rods 212; 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 attract the half nut 211 mutually; the longitudinal direction of the slide chamber 213, the radial moving direction of the chuck body 1 of the chuck jaws 201, 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 effect of fixing the jaws 201 is not said, and when the screw rod 212 rotates forwards or backwards, the screw rod 212 can be matched with the half nut 211, so that the jaws 201 on the chuck body 1 move forwards and backwards 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 mutually attracted, 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, which is far away from the rotating rod 208, extends into the second mounting groove 102, so that the clamping jaw 201 can be conveniently detached and the clamping jaw 201 can be 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 separated from the second mounting groove 102 all the time.
The working principle is as follows: when the electromagnetic clutch is used, the second electromagnet 401 is started, so that the second electromagnet 401 and the half nut 211 are mutually attracted, and the half nut 211 is in threaded connection with the screw 212; then, the driving device 3 is started, the driving device 3 drives the screw 212 to rotate, the screw 212 drives the half nut 211 to move along the length direction of the screw 212 in a rotating manner, the plurality of clamping jaws 201 on the chuck body 1 are far away from each other, and then a workpiece to be clamped is placed among the plurality of clamping jaws 201; and then the driving device 3 is controlled to drive the screw 212 to rotate, so that the screw 212 drives the half nut 211 to move along the length direction of the screw 212 in a rotating manner, the plurality of clamping jaws 201 on the chuck body 1 are close to each other, and the plurality of clamping jaws 201 on the chuck body 1 clamp the workpiece to be clamped.
When dismantling the jack catch 201 of chuck body 1, stop to switch on second electro-magnet 401, first rebound jack catch 201 for half nut 211 and screw rod 212 cancel threaded connection, then along the length direction of screw rod 212, outside chuck body 1, pulling jack catch 201, slider 206, dwang 208 and carriage release lever 209, make jack catch 201 pull out first mounting groove 101, carriage release lever 209 shifts out from second mounting groove 102, can accomplish the dismantlement to jack catch 201.
When installing jack catch 201, insert the carriage release lever 209 to second mounting groove 102 earlier in, then put into jack catch 201 to first mounting groove 101 in, after removing jack catch 201 to suitable position, remove jack catch 201 along jack catch 201 near the direction of screw rod 212 for half nut 211 and screw rod 212 threaded connection can accomplish the installation to jack catch 201.
The machine tool chuck device can carry out eccentric clamping and clamping work of workpieces processed by different types: the second electromagnet 401 is stopped to be electrified, the workpiece to be clamped is firstly placed among the plurality of clamping jaws 201, and the relative positions of the half nuts 211 on the corresponding clamping jaws 201 on the screw 212 are respectively and correspondingly adjusted, so that the relative positions among the plurality of clamping jaws 201 are adjusted, and the plurality of clamping jaws 201 on the machine tool chuck device can be used for carrying out eccentric clamping and clamping work of workpieces processed in different shapes.
Example 2: 1-9, in embodiment 2, based on embodiment 1, a further improvement is that a rectangular through hole 212a matched with the movable rod 209 in shape is formed at the end of the screw rod 212; the second mounting groove 102 is opposite to the rectangular through hole 212a, and the second mounting groove 102 is communicated with the first mounting groove 101; one end of the movable rod 209, which is far away from the rotating rod 208, penetrates through the second mounting groove 102 and extends into the rectangular through hole 212a; the inner side wall of the sliding groove 201a and the outer side wall of one end, close to the sliding groove 201a, of the sliding block 206 are provided with friction layers, so that the clamping jaw 201 cannot move relative to the sliding block 206 under the action of external force.
One end of the rotating rod 208, which is close to the moving rod 209, 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 suspended ball head, or a connecting rod can be arranged between the moving rod 209 and the rotating rod 208, the connecting rod can rotate relative to the central axis of the moving rod 209, and the connecting rod and the rotating rod 208 are connected in a rotating way; the moving rod 209 is inserted into the rectangular through hole 212a, so that the screw 212 can be fixed by the moving rod 209 through the rectangular through hole 212a without using other fixing parts.
Example 3: 1-9, in embodiment 3, based on embodiment 2, the further improvement is that a conical gear 301 is arranged at the end of the screw 212 far away from the rotating rod 208; one side of the conical gear 301 close to the screw 212 is provided with a rectangular groove 301a, and the rectangular through hole 212a 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 212a and extends 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 one end of the moving rod 209 far away from the rotating rod 208, the conical gear 301 can be controlled to drive the screw rod 212 to rotate; when one end of the movable rod 209, which is far away 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 rod 212 to rotate; when the end of the moving rod 209 away from the rotating rod 208 is moved out of the rectangular groove 301a, the bevel gear 301 rotates and does not rotate the screw 212.
Example 4: 1-9, embodiment 4 is a further improvement on embodiment 3, in which the clamping mechanism 2 further includes 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 arranged on the side wall of the slide 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 supporting block 204, and the second guide rod 210 and the blocking supporting block 204 can be clamped or in threaded connection.
The central axis of the first guide rod 203, the length direction of the slide cavity 213, the radial moving direction of the jaws 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 supporting 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 on the side of the half nut 211 away from the moving ring 205; when the second electromagnet 401 is electrified in a positive direction, one side of the second electromagnet 401 close to the half nut 211 is a magnetic pole mutually attracted with the half nut 211, on the contrary, when the second electromagnet 401 is electrified in a negative direction, one side of the second electromagnet 401 close to the half nut 211 is a magnetic pole mutually repelled 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 clamping jaw 201 can move up and down along the length direction of the guide hole 207, so that the first mounting groove 101 is also conveniently cleaned.
When one side of the second electromagnet 401 close to the half nut 211 is a magnetic pole repelling each other with the half nut 211, because the second electromagnet 401 repels each other with the half nut 211, the jaw 201 can move along the first guide rod 203 to the direction away from the screw 212 through the first moving ring 205, the jaw 201 can move the slider 206 along the length direction of the guide hole 207, the slider 206 pulls the rotating rod 208 to enable the moving rod 209 to be away from one end of the rotating rod 208, and the rectangular groove 301a is removed, so that the screw 212 can not be driven to rotate when the bevel gear 301 rotates.
When the jack catch 201 of the chuck body 1 is disassembled, the limit of the supporting block 204 on the sliding block 206 is cancelled, the jack catch 201 is moved upwards firstly, the half nut 211 and the screw 212 are cancelled to be in threaded connection, then the length direction of the screw 212 is along the outer side of the chuck body 1, the jack catch 201, the sliding block 206, the rotating rod 208 and the moving rod 209 are pulled, the jack catch 201 is pulled out of the first mounting groove 101, the moving rod 209 is moved out of the second mounting groove 102, and the disassembly of the jack catch 201 can be completed.
When the claw 201 is installed, the moving rod 209 is firstly 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 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, so that the half nut 211 is in threaded connection with the screw 212, and the clamping jaw 201 can be installed.
Example 5: 1-9, in embodiment 5, based on embodiment 4, the improvement is further that the driving device 3 comprises a forward and reverse rotating motor and a bevel gear 301; the bottom end of the chuck body 1 is provided with a mounting cavity 302, and the mounting cavity 302 is communicated with the first mounting groove 101; the bevel gear 301 is installed in the installation cavity 302, one end of the bevel gear 301 is meshed with the bevel gear 301, a gear shaft is installed on the bevel gear 301, and the gear shaft is connected with the output end of the positive and negative motor.
The moving rod 209 comprises a moving block 209a, a first sliding rod 209b, a spring 209c, a second sliding rod 209d and a limit block 209f; the second sliding rod 209d is fixedly connected between the first sliding rod 209b and the limiting block 209f; the moving block 209a is sleeved and slidably connected to the second sliding rod 209d, and the spring 209c is sleeved on the second sliding rod 209d and located between the moving block 209a and the first sliding rod 209 b; the first slide bar 209b, the moving block 209a, the rectangular groove 301a, and the rectangular through hole 212a have the same sectional shape and size.
The contact switch pieces are arranged at the ends, close to each other, of the plurality of clamping jaws 201 and 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 located to be electrified with positive and negative currents, when a workpiece to be clamped is tightly attached to the contact switch pieces on the corresponding clamping jaws 201 to be contacted, the currents electrified by the second electromagnets 401 corresponding to the half nuts 211 on the clamping jaws 201 enable one sides, close to the half nuts 211, of the second electromagnets 401 to have mutually exclusive magnetic poles, and the half nuts 211 on the clamping jaws 201 where the contact switch pieces are located are separated from the screw rods 212 in threaded connection with the half nuts; when waiting to press from both sides all the jack catchs 201 on work piece and the chuck body 1 and all contact, the second electro-magnet 401 on all fixture 2 can let in opposite electric current and can make the second electro-magnet 401 be close to the magnetic pole of a side band inter attraction of half nut 211 to make half nut 211 hug closely screw rod 212, make nut 211 and screw rod 212 continue threaded connection, through contact switch's setting, make the lathe chuck device of this application can centre gripping heterotypic work piece or eccentric work piece.
The central axes of the rectangular groove 301a, the rectangular through hole 212a, the second mounting groove 102, and the screw 212 overlap.
Through the arrangement of the moving rod 209 with the structure, 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, because the second electromagnet 401 is mutually exclusive with the half nut 211, the jaw 201 can move towards the direction far away from the screw 212 along the first guide rod 203 through the first moving ring 205, the jaw 201 can enable the slider 206 to move along the length direction of the guide hole 207, the slider 206 pulls the rotating rod 208 to enable the limiting block 209f to pull the moving block 209a to move out from the rectangular groove 301a and enter the rectangular through hole 212a, so that the connection of the moving rod 209 to the bevel gear 301 and the screw 212 is cancelled, and when the bevel gear 301 rotates, the bevel gear 301 can not drive the screw 212 to rotate.
When the half nut 211 is located on the side of the jaw 201 far from the screw 212 and the half nut 211 is not in threaded connection with the screw 212, the magnetic pole on the side of the second electromagnet 401 close to the half nut 211 is adjusted so that when the side of the second electromagnet 401 close to the half nut 211 is the magnetic pole attracting the half nut 211, because the second electromagnet 401 attracts the half nut 211, the half nut 211 moves in the direction close to the screw 212, the half nut 211 pulls the jaw 201 to move into the first mounting groove 101 through the first moving ring 205, when the jaw 201 moves in the direction close to the screw 212, the slider 206 moves in the length direction of the guide hole 207 and pushes the first sliding bar 209b to move in the direction close to the rectangular groove 301a through the rotating rod 208, the first sliding bar 209b pushes the spring 209c, the spring 209c pushes the moving block 209a located in the rectangular through hole 212a to move into the rectangular groove 301a, when the moving block 209a moves into the rectangular groove 301a, and when the bevel gear 301 rotates, the bevel gear 301 can drive the screw 212 to rotate.
The spring 209c, the moving block 209a, the limiting block 209f, the second sliding rod 209d and the first sliding rod 209b are arranged to ensure that when one side of the second electromagnet 401, which is 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 rod 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 rod 212 is cancelled, and when the bevel gear 301 rotates, the bevel gear 301 cannot drive the screw rod 212 to rotate; when the second electromagnet 401 is a magnetic pole attracting the half nut 211, the half nut 211 moves towards the direction of approaching the screw 212, when the half nut 211 is tightly attached to the screw 212, the half nut 211 and the screw 212 can be just engaged, and the moving block 209a can smoothly move into the rectangular groove 301a from the rectangular through hole 212a, so that when the bevel gear 301 rotates, the bevel gear 301 can continuously drive the screw 212 to rotate, thereby adjusting the relative positions of the plurality of clamping jaws 201 on the chuck body 1.
Example 6: 1-9, in embodiment 6, based on any one of embodiments 1-5, a further improvement is provided, wherein two opposite side walls of the claw 201 are respectively provided with a baffle 201b of the claw 201 along the radial moving direction of the chuck body 1; the section of the baffle plate 201b is in a right triangle shape, and the baffle plate 201b is provided with an inclined surface which inclines towards the top wall close to the chuck body 1; the bottom of the baffle plate 201b is connected with the top wall of the chuck body 1 in a sliding way; the end of the baffle 201b in the radial moving direction of the chuck body 1 is flush with the end of the jaw 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, especially when the plurality of jaws 201 on the chuck body 1 are close to or away from each other.
Example 7: referring to fig. 1 to 9, in embodiment 7, based on embodiment 6, a further improvement is provided, in which a cylindrical fixing portion 104 is disposed at the center of the top end of the chuck body 1, and an elastic membrane 105 is sleeved and fixed on the cylindrical fixing portion 104; a fixing strip is detachably mounted on the side wall of the clamping jaw 201 close to the central axis of the chuck body 1, and one 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 greater than the width of the clamping jaw 201; when the plurality of claws 201 are far away from each other, the elastic film 105 is opened, the elastic film 105 is in a reverse taper shape, and the elastic film 105 is used for preventing some chips from entering the first mounting groove 101 during the use process of the chuck device.
Claims (10)
1. A lathe chuck device which characterized in that: comprises a chuck body (1), at least two clamping mechanisms (2) and a driving device (3), wherein the at least two clamping mechanisms are arranged on the chuck body (1) and are in a circumferential array;
the clamping mechanism (2) comprises a clamping jaw (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); the top wall of the chuck body (1) is provided with a first mounting groove (101) for the clamping jaw (201) to move along the radial direction of the chuck body (1);
a screw rod (212) which is meshed with the half nut (211) in a threaded manner is arranged in the first mounting groove (101);
the first moving ring (205) is fixedly connected between the half nut (211) and the claw (201); the bottom end of the claw (201) is provided with a sliding groove (201 a) for the sliding block (206) to move, one end of the sliding block (206) is arranged in the sliding groove (201 a), and the other end of the sliding block (206) 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, far away from the rotating rod (208), of the moving rod (209) extends into the second mounting groove (102); the driving device (3) is used for driving the screw rod (212) to rotate;
the chuck body (1) is internally provided with sliding cavities (213) which correspond to the screw rods (212) in number and are parallel to the length direction of the screw rods (212); a second electromagnet (401) sliding along the length direction of the sliding cavity (213) is arranged in the sliding cavity (213);
one 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 attract the half nut (211) mutually; the length direction of the sliding cavity (213), the radial moving direction of the claw (201) along the chuck body (1) and the moving direction of the sliding block (206) in the sliding groove (201 a) are mutually parallel.
2. A machine tool chuck assembly in accordance with claim 1 wherein: the end part of the screw rod (212) is provided with a rectangular through hole (212 a) matched with the shape of the movable rod (209);
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 movable rod (209), which is far away from the rotating rod (208), penetrates through the second mounting groove (102) and extends into the rectangular through hole (212 a).
3. A machine tool chuck apparatus according to claim 2, wherein: a conical gear (301) is arranged at the end part of the screw rod (212) far away from the rotating rod (208);
one side of the conical gear (301) close to the screw rod (212) is provided with a rectangular groove (301 a), and the rectangular through hole (212 a) is communicated with the rectangular groove (301 a);
one end of the movable 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 extends into the rectangular groove (301 a);
the cross 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).
4. A machine tool chuck assembly according to claim 3 and further comprising: the clamping mechanism (2) further comprises a blocking supporting 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 a 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 a 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 supporting 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 on the side, away from the moving ring (205), of the half nut (211);
when the second electromagnet (401) is electrified in a positive direction, one side, close to the half nut (211), of the second electromagnet (401) is a magnetic pole mutually attracted with the half nut (211), on the contrary, when the second electromagnet (401) is electrified in a negative direction, one side, close to the half nut (211), of the second electromagnet (401) is a magnetic pole mutually repelled with the half nut (211), and the half nut (211) moves upwards;
the chuck body (1) and the screw rod (212) are made of non-metal materials.
5. A machine tool chuck assembly according to claim 4 and further comprising: 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 and slidably connected to the second sliding rod (209 d), and the spring (209 c) is sleeved on the second sliding rod (209 d) and is positioned between the moving block (209 a) and the first sliding rod (209 b);
the first slide bar (209 b), the moving block (209 a), the rectangular groove (301 a) and the rectangular through hole (212 a) have the same cross-sectional shape and size.
6. A machine tool chuck assembly according to any one of claims 1 to 5 wherein: two opposite side walls of the clamping jaw (201) are provided with baffle plates (201 b) of the clamping jaw (201) along the radial moving direction of the chuck body (1);
the cross section of the baffle plate (201 b) is in a right triangle shape, and the baffle plate (201 b) is provided with an inclined surface which inclines towards the top wall close to the chuck body (1);
the bottom of the baffle (201 b) is in sliding connection with the top wall of the chuck body (1);
the end part of the baffle plate (201 b) along the radial moving direction of the chuck body (1) is flush with the end part of the clamping jaw (201).
7. A machine tool chuck assembly according to claim 6 and further comprising: a columnar fixing part (104) is arranged at the center of the top end of the chuck body (1), and an elastic film (105) is fixedly sleeved on the columnar fixing part (104);
a fixing strip is detachably mounted on the side wall, close to the central axis of the chuck body (1), of the clamping jaw (201), and the side wall, far away from the clamping jaw (201), of the fixing strip is fixed with the end part of the elastic membrane (105); the length of the fixing strip is greater than the width of the clamping jaw (201);
when the plurality of claws (201) are away from each other, the elastic film (105) is opened, and the elastic film (105) is in an inverted cone shape.
8. A machine tool chuck assembly according to claim 5 and further comprising: one end of each of the clamping jaws (201) close to each other is provided with a contact switch sheet, and the contact switch sheets are used for controlling the second electromagnets (401) corresponding to the half nuts (211) on the clamping jaws (201) where the contact switch sheets are located to be switched on positive and negative currents.
9. A machine tool chuck apparatus according to claim 5, 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.
10. A machine tool chuck assembly according to claim 5 and further comprising: the driving device (3) comprises a forward and reverse rotating motor and a conical gear (301);
the bottom end of the chuck body (1) is provided with a mounting cavity (302), and the mounting cavity (302) is communicated with the first mounting groove (101);
the bevel gear (301) is installed in the installation cavity (302), one end of the bevel gear is meshed with the bevel gear (301), a gear shaft is installed on the bevel 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 true CN115740533A (en) | 2023-03-07 |
| CN115740533B CN115740533B (en) | 2023-06-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116728239A (en) * | 2023-08-14 | 2023-09-12 | 绵阳奥力达科技有限公司 | Stepped end surface polishing device for high-pressure oil pump seat |
| CN117103076A (en) * | 2023-10-09 | 2023-11-24 | 河北燕山钢铁集团有限公司 | Recycling device for waste materials for electric furnace production |
| CN117696944A (en) * | 2024-02-06 | 2024-03-15 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
| CN118162643A (en) * | 2024-05-13 | 2024-06-11 | 江苏艾克美金属科技有限公司 | Positioning tool for machining motor end cover |
| CN118321594A (en) * | 2024-06-17 | 2024-07-12 | 江苏艾维基业智能科技有限公司 | Hydraulic chuck for special-shaped parts |
| CN118543908A (en) * | 2024-07-30 | 2024-08-27 | 兴化市宏秀机械配件有限公司 | Auxiliary cutting device for machining material is got rid of to threaded rod |
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| CN116728239A (en) * | 2023-08-14 | 2023-09-12 | 绵阳奥力达科技有限公司 | Stepped end surface polishing device for high-pressure oil pump seat |
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| CN117103076A (en) * | 2023-10-09 | 2023-11-24 | 河北燕山钢铁集团有限公司 | Recycling device for waste materials for electric furnace production |
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| CN117696944A (en) * | 2024-02-06 | 2024-03-15 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
| 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 |
| CN118162643A (en) * | 2024-05-13 | 2024-06-11 | 江苏艾克美金属科技有限公司 | Positioning tool for machining motor end cover |
| CN118162643B (en) * | 2024-05-13 | 2024-07-12 | 江苏艾克美金属科技有限公司 | Positioning tool for machining motor end cover |
| CN118321594A (en) * | 2024-06-17 | 2024-07-12 | 江苏艾维基业智能科技有限公司 | Hydraulic chuck for special-shaped parts |
| CN118543908A (en) * | 2024-07-30 | 2024-08-27 | 兴化市宏秀机械配件有限公司 | Auxiliary cutting device for machining material is got rid of to threaded rod |
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| CN115740533B (en) | 2023-06-20 |
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