CN210188537U - Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and built-in hydraulic station - Google Patents
Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and built-in hydraulic station Download PDFInfo
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- CN210188537U CN210188537U CN201921108121.2U CN201921108121U CN210188537U CN 210188537 U CN210188537 U CN 210188537U CN 201921108121 U CN201921108121 U CN 201921108121U CN 210188537 U CN210188537 U CN 210188537U
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- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 61
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 21
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 229920001342 Bakelite® Polymers 0.000 claims description 6
- 239000004637 bakelite Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a chuck technical field, specifically speaking relates to a hydro-cylinder and built-in two spiral self-centering hydraulic chuck of group in hydraulic pressure station. The chuck comprises a chuck main body, wherein two jaw groups are arranged on the chuck main body, and each jaw group comprises 1-4 jaw assemblies capable of radially moving on the surface of the chuck main body and jaw driving mechanisms assembled in an inner cavity at the bottom of the chuck main body and used for driving each jaw assembly to radially move in the same group. The utility model discloses axial dimension is little, jack catch movable stroke is big, the jack catch clamping-force is big, be fit for doing jumbo size chuck, the diameter is minimum 0.8 meters, accomplish more than 6 meters the most, and removed the back and drawn the oil cylinder, the machine tool installation problem has been solved, moreover, both can the centre gripping interior circle or the excircle of same work piece, supplementary lathe is processed the outer disc or the interior disc of this work piece, also can two work pieces of centre gripping simultaneously, supplementary lathe is processed two work pieces simultaneously, the machining precision is high, high work efficiency.
Description
Technical Field
The utility model relates to a chuck technical field, specifically speaking relates to a hydro-cylinder and built-in two spiral self-centering hydraulic chuck of group in hydraulic pressure station.
Background
At present, the hydraulic chucks are mainly divided into two types: 1. the front hydraulic chuck, namely the chuck and the rotary cylinder are integrated, the oil pipe is connected from the front end, and the chuck is small in size due to the limitation of structural design; 2. the back-pull type hydraulic chuck is characterized in that the chuck is installed at the front end of a machine tool spindle, a rotary hydraulic cylinder is installed at the rear end of the machine tool spindle, an oil cylinder is pulled back to drive a wedge-shaped structural member to move backwards, the wedge-shaped structural member drives a sliding block to move towards the axis, and due to the limitation of structural design, the movable stroke of the hydraulic chuck is small, the hydraulic chuck is not suitable for being used as a large-size chuck and is generally within. In addition, an electric chuck is arranged for driving the sliding block to move towards the center for the rotation of a rear-mounted motor.
The back of the chuck structures needs to have enough installation space, the chuck structures cannot be installed if the spindle of the vertical lathe is solid, and even if the spindle of the large vertical lathe is of a hollow structure, a trench needs to be dug during installation, an installer needs to install the rear-mounted oil cylinder below the machine tool through the trench, time and labor are wasted, the later maintenance cost is high, and the working stroke of the machine tool can be greatly reduced if the bench drill is provided with the chuck structures on the table board.
In addition, in the actual work of a machine tool, when a large workpiece is clamped, a large sliding block stroke and an overlarge clamping force are needed, the stroke of a back-pull oil cylinder of a traditional wedge-shaped chuck is generally equal to that of a sliding block, if the stroke or the clamping force of the sliding block is increased on the premise of not improving the pressure of a hydraulic station, the axial size of the chuck can be increased only, the stroke of the sliding block is calculated by 20 mm, if the clamping force is increased by 10 times, the axial size of the chuck needs to be increased by 200 mm, the chuck is too thick, and the machining stroke of the machine tool is reduced.
Disclosure of Invention
An object of the utility model is to provide a hydro-cylinder and hydraulic pressure built-in two spiral self-centering hydraulic chuck of group in station to solve above-mentioned technical problem.
In order to solve the above problems, the utility model adopts the following technical scheme:
the utility model provides a spiral self-centering hydraulic chuck of two groups of hydro-cylinder and hydraulic pressure station built-in, includes the chuck main part, its characterized in that: two clamping jaw groups are installed on the chuck main body and respectively comprise 1-4 clamping jaw assemblies capable of radially moving on the surface of the chuck main body and clamping jaw driving mechanisms assembled in an inner cavity at the bottom of the chuck main body and used for driving each clamping jaw assembly in the same group to radially move.
Furthermore, the top surface of the chuck main body is provided with two slide ways corresponding to the two groups of clamping jaws, the first slide way group comprises 1-4 radial first slide ways, the second slide way group comprises 1-4 second slide ways, and the first slide ways and the second slide ways are the same in quantity and are arranged on the surface of the chuck main body at intervals.
Furthermore, the two clamping jaw groups comprise an inner circle clamping jaw group and an outer circle clamping jaw group; the inner circle clamping jaw group comprises 1-4 inner circle clamping jaw assemblies and an inner circle jaw driving mechanism; the excircle clamping jaw group comprises 1-4 excircle clamping jaw assemblies and an excircle jaw driving mechanism.
Furthermore, the excircle clamping jaw assembly comprises an excircle sliding block clamped in the first slide way, an excircle jaw seat fixed on the excircle sliding block and an excircle clamping jaw fixed on the excircle jaw seat; the middle part of each first slideway is provided with a radial excircle jaw stroke hole, and the bottom of each excircle sliding block is provided with 2 excircle transmission shafts which are radially arranged; two excircle transmission shafts of each excircle sliding block downwards penetrate through the stroke holes of the corresponding first slide ways; the outer circle clamping jaw driving mechanism comprises an annular outer circle rotating disc and at least one group of integrated outer circle driving oil cylinders, the outer circle rotating disc is positioned in the inner cavity at the bottom of the chuck main body, and a plurality of rotating disc pressing plates are uniformly arranged at the positions where the outer circumference of the outer circle rotating disc is connected with the chuck main body; 1-4 arc-shaped outer circle convex blocks are uniformly arranged on the disc surface of the outer circle rotating disc and are correspondingly clamped between 2 outer circle transmission shafts of each outer circle sliding block one by one; the integrated excircle driving oil cylinder comprises an excircle oil cylinder and an excircle miniature hydraulic station for supplying oil to the excircle oil cylinder; the excircle miniature hydraulic station consists of an excircle electric motor, an excircle hydraulic oil tank and an excircle gear pump; the tail end of the cylinder body of the excircle oil cylinder is hinged to the chuck main body, and the top end of the piston rod is hinged to the disc surface of the excircle rotating disc.
Furthermore, the inner circle clamping jaw assembly comprises an inner circle sliding block clamped in the second slide way, an inner circle clamping jaw seat fixed on the inner circle sliding block and an inner circle clamping jaw fixed on the inner circle clamping jaw seat; the middle part of each second slideway is provided with a radial inner circle clamping jaw stroke hole, and the bottom of each inner circle sliding block is provided with 2 radially-arranged inner circle transmission shafts; two inner circle transmission shafts of each inner circle sliding block downwards penetrate through the stroke holes of the corresponding second slide ways; the inner circle jaw driving mechanism comprises a circular inner circle rotating disc and at least one group of integrated inner circle driving oil cylinders, and the inner circle rotating disc is positioned in a central hole of the outer circle rotating disc and is assembled on a central shaft of the chuck main body; 1-4 arc-shaped inner circle convex blocks are uniformly arranged on the disc surface of the inner circle rotating disc, and the inner circle convex blocks are correspondingly clamped between 2 inner circle transmission shafts of each inner circle sliding block one by one; the inner circle miniature hydraulic station consists of an inner circle electric motor, an inner circle hydraulic oil tank and an inner circle gear pump; the tail end of the cylinder body of the inner circle oil cylinder is hinged to the chuck main body, and the top end of the piston rod is hinged to the disc surface of the inner circle rotating disc.
Furthermore, an annular groove is formed in the outer wall of the chuck main body, an annular bakelite seat is clamped in the annular groove, and two annular leads are fixed on the bakelite seat; the outer side of the chuck main body is provided with a carbon brush support, two carbon brushes are fixed on the carbon brush support, and the two carbon brushes are respectively in contact with the annular conducting wire; an annular carbon brush protective cover is fixed on the outer wall of the chuck main body; and the positive and negative terminals of the excircle electric motor and the inner circle electric motor are respectively and electrically connected with the two annular leads.
And furthermore, an outer circle digital display control table for monitoring the pressure of the outer circle clamping jaw group and controlling the outer circle electric motor to work according to the pressure value and an inner circle digital display control table for monitoring the pressure of the inner circle clamping jaw group and controlling the inner circle electric motor to work according to the pressure value are arranged in the chuck body.
Furthermore, install wireless IO module, excircle switching-over relay group and interior circle switching-over relay group in the chuck main part.
Has the advantages that: compared with the prior art, hydraulic chuck design have two sets of jack catch assemblies and place the integrated form driving cylinder of chuck main part bottom inner chamber in two sets of in, adopt direct current 12-48V low pressure power supply, no potential safety hazard, the power passes through carbon brush holder, the carbon brush, the electric motor of two sets of integrated form driving cylinder of annular wire access chuck main part inside, electric motor changes the fuel feeding direction through the positive negative pole conversion of DC power supply, the hydro-cylinder work that corresponds is controlled respectively, two sets of hydro-cylinders drive two rotary disk positive and negative direction rotations respectively, and then drive corresponding slider radial movement, finally realize two sets of jack catch centre grippings or release work piece. Since the structure and the principle are adopted, the utility model discloses axial dimension is little, jack catch movable stroke is big, the jack catch clamping-force is big, be fit for doing jumbo size chuck, the diameter is minimum 0.8 meters, can accomplish more than 6 meters at the utmost, and removed the oil jar of back pull, the machine tool installation problem has been solved, moreover, both can the centre gripping interior circle or the excircle of same work piece, supplementary lathe is processed the outer disc or the interior disc of this work piece, also can two work pieces of centre gripping simultaneously, supplementary lathe is processed two work pieces simultaneously, the machining precision is high, high work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a side view of an embodiment of the present invention;
fig. 3 is a schematic view of the inner circle clamping jaw set clamping the inner circle of the workpiece according to the present invention;
FIG. 4 is a schematic view of the outer circle clamping jaw set of the present invention clamping the outer circle of the workpiece;
fig. 5 is a schematic diagram of the circuit control of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example (b):
referring to fig. 1-2, the double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station in the present embodiment includes a chuck main body 1, and two jaw groups are installed on the chuck main body 1, and each of the two jaw groups includes 3 jaw assemblies capable of radially moving on the surface of the chuck main body 1 and a jaw driving mechanism assembled in an inner cavity at the bottom of the chuck main body 1 and used for driving each jaw assembly in the same group to radially move.
The top surface of chuck main part 1 is provided with two slide groups corresponding with two sets of jack catch groups, and first slide group includes 3 radial first slides, and second slide group includes 3 second slides, first slide and second slide interval are arranged on the surface of chuck main part 1.
The two clamping jaw groups comprise an inner circle clamping jaw group and an outer circle clamping jaw group.
Excircle centre gripping jack catch group includes 3 excircle centre gripping jack catch assemblies and drives 3 excircle centre gripping jack catch total radial motion's excircle jack catch actuating mechanism, specifically speaking:
the excircle clamping jaw assembly comprises an excircle sliding block 4 clamped in the first slide way, an excircle clamping jaw seat 42 fixed on the excircle sliding block 4 and an excircle clamping jaw 43 fixed on the excircle clamping jaw seat 42; the middle part of each first slideway is provided with a radial excircle jaw stroke hole, and the bottom of each excircle sliding block 4 is provided with 2 excircle transmission shafts 41 which are radially arranged; the two outer circle transmission shafts 41 of each outer circle sliding block 4 downwards penetrate through the stroke holes of the corresponding first slide ways.
The outer circle jaw driving mechanism comprises an annular outer circle rotating disc 3 and at least one group of integrated outer circle driving oil cylinders, the outer circle rotating disc 3 is positioned in the inner cavity at the bottom of the chuck main body 1, and a plurality of rotating disc pressing plates 32 are uniformly arranged at the positions where the outer circumference of the outer circle rotating disc 3 is connected with the chuck main body 1; the disc surface of the outer circle rotating disc 3 is uniformly provided with 1-4 arc-shaped outer circle convex blocks 31, and the outer circle convex blocks 31 are correspondingly clamped between 2 outer circle transmission shafts 41 of each outer circle sliding block 4 one by one. The integrated excircle driving oil cylinder comprises an excircle oil cylinder 71 and an excircle miniature hydraulic station for supplying oil to the excircle oil cylinder 71; the excircle miniature hydraulic station consists of an excircle electric motor 73, an excircle hydraulic oil tank 72 and an excircle gear pump 74; the tail end of the cylinder body of the excircle oil cylinder 71 is hinged on the chuck main body 1, and the top end of the piston rod is hinged on the disk surface of the excircle rotating disk 3.
The inner circle clamping jaw group comprises 3 inner circle clamping jaw assemblies and an inner circle jaw driving mechanism for driving the 3 inner circle clamping jaw assemblies to move radially, and specifically comprises:
the inner circle clamping jaw assembly comprises an inner circle sliding block 5 clamped in the second slide way, an inner circle clamping jaw seat 52 fixed on the inner circle sliding block 5 and an inner circle clamping jaw 53 fixed on the inner circle clamping jaw seat 52; the middle part of each second slideway is provided with a radial inner circle jack catch stroke hole, and the bottom of each inner circle sliding block 5 is provided with 2 inner circle transmission shafts 51 which are radially arranged; the two inner circle transmission shafts 51 of each inner circle sliding block 5 downwards penetrate through the stroke holes of the corresponding second slide ways;
the inner circle jack catch driving mechanism comprises a circular inner circle rotating disc 2 and at least one group of integrated inner circle driving oil cylinders, and the inner circle rotating disc 2 is positioned in a central hole of the outer circle rotating disc 3 and is assembled on a central shaft 6 of the chuck main body 1; 1-4 arc-shaped inner circle convex blocks 21 are uniformly arranged on the disc surface of the inner circle rotating disc, and the inner circle convex blocks 21 are correspondingly clamped between 2 inner circle transmission shafts 51 of each inner circle sliding block 5 one by one; the inner circle micro hydraulic station is composed of an inner circle electric motor 83, an inner circle hydraulic oil tank 82 and an inner circle gear pump 84; the tail end of the cylinder body of the inner circle oil cylinder 81 is hinged on the chuck main body 1, and the top end of the piston rod is hinged on the disc surface of the inner circle rotating disc 2.
The utility model discloses the integrated form excircle hydraulic cylinder and the integrated form inner circle hydraulic cylinder that well adopted all have on the market and sell, for prior art, no longer give unnecessary details its concrete structure and theory of operation here.
An annular groove is formed in the outer wall of the chuck main body 1, an annular bakelite seat 95 is clamped in the annular groove, and two annular leads 93 are fixed on the bakelite seat 95; a carbon brush support 91 is arranged on the outer side of the chuck main body 1, two carbon brushes 92 are fixed on the carbon brush support 91, and the two carbon brushes 92 are respectively contacted with an annular lead 93; an annular carbon brush protective cover 94 is fixed on the outer wall of the chuck main body 1; the positive and negative terminals of the outer electric motor 73 and the inner electric motor 83 are electrically connected to two annular wires 93, respectively.
The hydraulic chuck described in this embodiment is powered by dc 12-48V at low voltage, and has no potential safety hazard, and the carbon brush holder 91 is fixed to the outer side of the chuck body 1, so that the position of the carbon brush holder is fixed and the carbon brush holder cannot rotate along with the chuck body 1, and meanwhile, the carbon brush 92 contacts the annular wire 93. The power supply is respectively connected to the outer circle electric motor 73 and the inner circle electric motor 83 in the chuck body 1 through the carbon brush support 91, the carbon brush 92 and the annular lead 93.
When the inner circle surface and the end surface of the workpiece need to be machined, the outer circle electric motor 73 changes the oil supply direction through the positive and negative switching of the direct-current power supply, the outer circle oil cylinder 71 is controlled to stretch, the outer circle oil cylinder 71 drives the outer circle rotating disc 3 to rotate in the positive direction and the negative direction, the outer circle convex block 31 rotates in the positive direction and the negative direction along with the outer circle rotating disc 3, the outer circle sliding block 4 is driven to move in the radial direction through the outer circle transmission shaft 41, and then the outer circle clamping jaw 43 clamps the outer circle of.
When the outer circle surface and the end surface of a workpiece need to be machined, the inner circle electric motor 83 changes the oil supply direction through the positive and negative conversion of a direct-current power supply, the inner circle oil cylinder 81 is controlled to stretch out and draw back, the inner circle oil cylinder 81 drives the inner circle rotating disk 2 to rotate in the positive and negative directions, the inner circle convex block 81 rotates in the positive and negative directions along with the inner circle rotating disk 2, the inner circle sliding block 5 is driven to move in the radial direction through the inner circle transmission shaft 51, and then the inner circle clamping jaw 53 clamps the inner circle of the.
When the inner circular surface, the outer circular surface and the end surface of the workpiece need to be simultaneously machined, the outer circle of the workpiece can be clamped by the outer circle clamping jaw 43, and the auxiliary machine tool can be used for cutting the inner circular surface and the end surface of the workpiece; then, the inner circle of the workpiece is clamped by the inner circle clamping jaw 53, the outer circle clamping jaw 43 loosens the outer circle of the workpiece, and the machine tool is assisted to cut the outer circle surface of the workpiece, so that one-time clamping can be realized, three-side processing is completed, and the processing precision and efficiency are improved.
This embodiment hydraulic chuck also can be by interior circle centre gripping jack catch group and excircle centre gripping jack catch group inner circle, the excircle of centre gripping same work piece simultaneously, supplementary lathe is processed the work piece, can increase the centre gripping dynamics like this, can prevent effectively that the work piece from warping through the multiple spot centre gripping work piece again.
This embodiment the hydraulic jack catch can also be by a work piece of interior circle centre gripping jack catch group and excircle centre gripping jack catch group centre gripping respectively, supplementary lathe is processed two work pieces simultaneously, only need with the height of interior circle centre gripping jack catch 43 be 2 times of excircle centre gripping jack catch 53 height (or the height of excircle centre gripping jack catch is 2 times of interior circle centre gripping jack catch height), the interior circle (or the excircle) of a work piece of centre gripping jack catch 43 centre gripping, the excircle (or the interior circle) of another work piece of excircle centre gripping jack catch 53 centre gripping. Therefore, two workpieces can be clamped at one time, and the working efficiency is improved.
According to the sizes of different diameters of the chuck main body 1, the diameter of each oil cylinder is generally between 60 and 100 mm, when the pressure of the electric motor is 7.1MP, the maximum thrust of 60 oil cylinders is 8000N, the maximum thrust of 100 oil cylinders is 24000N, and the stroke is 50 to 500 mm. When the stroke of the oil cylinder is 200 mm, the sliding block moves by 20 mm through the rotating disk, the stroke of the oil cylinder is 10 times of that of the sliding block, and 8000N multiplied by 10 times is equal to 80000N. The electric motor and the oil cylinder are horizontally arranged in the chuck body 1, and 1-9 electric motors and oil cylinders are arranged according to the size of the chuck body 1 and the required clamping force. When hydraulic chuck's rotary disk structure compares the slider stroke with traditional wedge and increases 5 times, the clamping-force still can increase more than 10 times.
The utility model discloses in, install in the chuck main part 1 and be used for monitoring the pressure of excircle centre gripping jack catch group and according to the excircle digital display control table 10A of pressure value control excircle electric motor 73 work and be used for monitoring the pressure of interior circle centre gripping jack catch group and according to the interior circle digital display control table 10B of the work of interior circle electric motor 83 of pressure value control. The two digital display control meters can display the pressure of the chuck, can respectively control the power supply of the two groups of electric motors to be switched on or switched off according to the set pressure, and can also change the clamping force of the chuck by adjusting the pressure to process different workpieces.
Each excircle electric motor 73 and each excircle oil cylinder 71 of the excircle jaw driving mechanism adopt a parallel structure, two oil circuit pressures are respectively controlled through two excircle digital display control tables 10A, and the excircle electric motor 73 only supplies power during clamping and loosening actions, so that electric energy is saved, the excircle electric motor 73 and hydraulic oil are prevented from heating, the abrasion of the excircle electric motor 73 is reduced, the service life is prolonged, and no noise exists. If the pressure is reduced in the machining process, the outer circle digital display control table 10A can be automatically connected with the power supply of the outer circle electric motor 73, and the outer circle electric motor 73 operates to supplement the pressure to the outer circle oil cylinder 71.
Similarly, each inner circle electric motor 83 and each inner circle oil cylinder 81 of the inner circle jaw driving mechanism adopt a parallel structure, two oil circuit pressures are respectively controlled through two inner circle digital display control tables 10B, the inner circle electric motor 83 only supplies power when clamping and loosening, electric energy is saved, the inner circle electric motor 83 and hydraulic oil are prevented from generating heat, abrasion of the inner circle electric motor 83 is reduced, the service life is prolonged, and no noise exists. If the pressure is reduced in the machining process, the inner circle digital display control table 10B is automatically connected to the power supply of the inner circle electric motor 83, and the inner circle electric motor 83 operates to supplement the pressure to the inner circle oil cylinder 81.
In addition, still be equipped with wireless IO module 11, excircle switching-over relay group 12A and interior circle switching-over relay group 12B in chuck main part 1, excircle switching-over relay group 12A, interior circle switching-over relay group 12B constitute by two relays. The circuit connection control principle of the outer circle electric motor 73, the inner circle electric motor 83, the two outer circle digital display control tables 10A, the two inner circle digital display control tables 10B, the wireless IO module, the reversing relay group a and the reversing relay group B is shown in fig. 5. During actual work, the wireless IO module 11 transmits a work instruction through a wireless transmission receiver bed system, and then controls the working states of the outer circle reversing relay group 12A and the inner circle reversing relay group 12B, thereby realizing power on/off and forward/reverse rotation of each outer circle electric motor 73 and/or each inner circle electric motor 83.
The technical contents not described in detail in the present invention are all known techniques.
The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a two spiral self-centering hydraulic chucks of group of hydro-cylinder and hydraulic pressure station built-in, includes chuck main part (1), its characterized in that: two jack catch groups are installed on the chuck main body (1), and the two jack catch groups respectively comprise 1-4 jack catch assemblies capable of radially moving on the surface of the chuck main body (1) and jack catch driving mechanisms assembled in an inner cavity at the bottom of the chuck main body (1) and used for driving the radial movement of each jack catch assembly in the same group.
2. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station according to claim 1, is characterized in that: the top surface of chuck main part (1) is provided with two slide groups corresponding with two sets of jack catch groups, and first slide group includes 1-4 radial first slides, and second slide group includes 1-4 second slides, first slide is the same with second slide quantity and the interval is arranged on the surface of chuck main part (1).
3. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station according to claim 2, is characterized in that: the two clamping jaw groups comprise an inner circle clamping jaw group and an outer circle clamping jaw group; the inner circle clamping jaw group comprises 1-4 inner circle clamping jaw assemblies and an inner circle jaw driving mechanism; the excircle clamping jaw group comprises 1-4 excircle clamping jaw assemblies and an excircle jaw driving mechanism.
4. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station according to claim 3, is characterized in that:
the excircle clamping jaw assembly comprises an excircle sliding block (4) clamped in the first slide way, an excircle jaw seat (42) fixed on the excircle sliding block (4) and an excircle clamping jaw (43) fixed on the excircle jaw seat (42); the middle part of each first slideway is provided with a radial excircle jaw stroke hole, and the bottom of each excircle sliding block (4) is provided with 2 excircle transmission shafts (41) which are radially arranged; two excircle transmission shafts (41) of each excircle sliding block (4) downwards penetrate through the stroke holes of the corresponding first slide ways;
the outer circle clamping jaw driving mechanism comprises an annular outer circle rotating disc (3) and at least one group of integrated outer circle driving oil cylinders, the outer circle rotating disc (3) is positioned in the inner cavity of the bottom of the chuck main body (1), and a plurality of rotating disc pressing plates (32) are uniformly arranged at the positions, connected with the chuck main body (1), of the outer circle edge of the outer circle rotating disc (3); 1-4 arc-shaped outer circle convex blocks (31) are uniformly arranged on the disc surface of the outer circle rotating disc (3), and the outer circle convex blocks (31) are correspondingly clamped among 2 outer circle transmission shafts (41) of each outer circle sliding block (4) one by one; the integrated excircle driving oil cylinder comprises an excircle oil cylinder (71) and an excircle miniature hydraulic station for supplying oil to the excircle oil cylinder (71); the excircle miniature hydraulic station consists of an excircle electric motor (73), an excircle hydraulic oil tank (72) and an excircle gear pump (74); the tail end of the cylinder body of the excircle oil cylinder (71) is hinged to the chuck main body (1), and the top end of the piston rod is hinged to the disc surface of the excircle rotating disc (3).
5. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station according to claim 4, is characterized in that:
the inner circle clamping jaw assembly comprises an inner circle sliding block (5) clamped in the second slide way, an inner circle clamping jaw seat (52) fixed on the inner circle sliding block (5) and an inner circle clamping jaw (53) fixed on the inner circle clamping jaw seat (52); the middle part of each second slideway is provided with a radial inner circle claw stroke hole, and the bottom of each inner circle sliding block (5) is provided with 2 inner circle transmission shafts (51) which are radially arranged; two inner circle transmission shafts (51) of each inner circle sliding block (5) downwards penetrate through the stroke holes of the corresponding second slide ways;
the inner circle jack catch driving mechanism comprises a circular inner circle rotating disc (2) and at least one group of integrated inner circle driving oil cylinders, wherein the inner circle rotating disc (2) is positioned in a central hole of the outer circle rotating disc (3) and is assembled on a central shaft (6) of the chuck main body (1); 1-4 arc-shaped inner circle convex blocks (21) are uniformly arranged on the disc surface of the inner circle rotating disc, and the inner circle convex blocks (21) are correspondingly clamped among 2 inner circle transmission shafts (51) of each inner circle sliding block (5) one by one; the integrated inner circle driving oil cylinder comprises an inner circle oil cylinder (81) and an inner circle micro hydraulic station for supplying oil to the inner circle oil cylinder (81); the inner circle micro hydraulic station consists of an inner circle electric motor (83), an inner circle hydraulic oil tank (82) and an inner circle gear pump (84); the tail end of the cylinder body of the inner circle oil cylinder (81) is hinged to the chuck main body (1), and the top end of the piston rod is hinged to the disc surface of the inner circle rotating disc (2).
6. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station according to claim 5, is characterized in that:
an annular groove is formed in the outer wall of the chuck main body (1), an annular bakelite seat (95) is clamped in the annular groove, and two annular leads (93) are fixed on the bakelite seat (95); a carbon brush support (91) is arranged on the outer side of the chuck main body (1), two carbon brushes (92) are fixed on the carbon brush support (91), and the two carbon brushes (92) are respectively in contact with two annular wires (93); an annular carbon brush protective cover (94) is fixed on the outer wall of the chuck main body (1); and the positive and negative terminals of the outer circle electric motor (73) and the inner circle electric motor (83) are respectively and electrically connected with two annular conducting wires (93).
7. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station of claim 6, is characterized in that: install in chuck main part (1) and be used for monitoring the pressure of excircle centre gripping jack catch group and according to excircle digital display control table (10A) of pressure value control excircle electric motor (73) work and be used for monitoring the pressure of interior circle centre gripping jack catch group and according to interior circle digital display control table (10B) of pressure value control interior circle electric motor (83) work.
8. The double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station of claim 7, is characterized in that: install wireless IO module (11), excircle switching-over relay group (12A) and interior circle switching-over relay group (12B) in chuck main part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108121.2U CN210188537U (en) | 2019-07-15 | 2019-07-15 | Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and built-in hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108121.2U CN210188537U (en) | 2019-07-15 | 2019-07-15 | Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and built-in hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210188537U true CN210188537U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921108121.2U Withdrawn - After Issue CN210188537U (en) | 2019-07-15 | 2019-07-15 | Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and built-in hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210188537U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227834A (en) * | 2019-07-15 | 2019-09-13 | 潍坊威豹机械有限责任公司 | A kind of double groups of spiral self-centering hydraulic pressure chucks built in oil cylinder and hydraulic station |
| CN112189455A (en) * | 2020-09-30 | 2021-01-08 | 江苏大学 | Self-locking hydraulic variable-diameter threshing cylinder and combine harvester |
-
2019
- 2019-07-15 CN CN201921108121.2U patent/CN210188537U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227834A (en) * | 2019-07-15 | 2019-09-13 | 潍坊威豹机械有限责任公司 | A kind of double groups of spiral self-centering hydraulic pressure chucks built in oil cylinder and hydraulic station |
| CN110227834B (en) * | 2019-07-15 | 2024-01-26 | 潍坊威豹机械有限责任公司 | Double-group spiral self-centering hydraulic chuck with built-in oil cylinder and hydraulic station |
| CN112189455A (en) * | 2020-09-30 | 2021-01-08 | 江苏大学 | Self-locking hydraulic variable-diameter threshing cylinder and combine harvester |
| CN112189455B (en) * | 2020-09-30 | 2021-08-03 | 江苏大学 | Self-locking hydraulic variable-diameter threshing cylinder and combine harvester |
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