CN215149214U - Four-claw automatic centering pneumatic series sleeve mechanical clamp - Google Patents
Four-claw automatic centering pneumatic series sleeve mechanical clamp Download PDFInfo
- Publication number
- CN215149214U CN215149214U CN202120460216.1U CN202120460216U CN215149214U CN 215149214 U CN215149214 U CN 215149214U CN 202120460216 U CN202120460216 U CN 202120460216U CN 215149214 U CN215149214 U CN 215149214U
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- piston rod
- machine body
- sealing washer
- type sealing
- blocks
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- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 40
- 210000003781 tooth socket Anatomy 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 8
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 8
- 241001330002 Bambuseae Species 0.000 abstract description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 8
- 239000011425 bamboo Substances 0.000 abstract description 8
- 210000000078 claw Anatomy 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 210000001847 jaw Anatomy 0.000 description 8
- 244000309464 bull Species 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a pneumatic series sleeve cylinder mechanical clamp with four claws for automatically centering, which comprises a shaft cylinder and a machine body; shaft tube: the lower surface of side and the last fixed surface of two first axle section of thick bamboo dust proof blocks and two second axle section of thick bamboo dust proof blocks are connected, and the cross spout of two first axle section of thick bamboo dust proof blocks and two second axle section of thick bamboo dust proof block lower surfaces respectively with the side sliding connection of four sliders, and the tooth's socket has all been seted up to the upper surface of four sliders, the equal screw thread in the middle part of four slider lower surfaces is installed the finger lever, hexagonal tightly decides in the equal screw thread installation in the screw at four slider lateral surface middles. The mechanical clamp can drive two groups of clamping jaws to move inwards simultaneously for automatic centering through two independent pneumatic pistons, and the clamping forces are the same, so that the clamping jaws cannot stop in the direction with large length dimension, and the other pair of mechanical jaws are in an unstressed or non-clamping state, so that the clamping jaws are automatically centered.
Description
Technical Field
The utility model relates to an automatic field especially relates to manipulator, mechanical finger field, specifically is a four-jaw is automatic looks for middle-air-actuated series connection cover jar mechanical clamp.
Background
In the field of automation, a manipulator occupies a very important position, and a mechanical clamp (or a mechanical finger) is more important. Automatic centering means automatic centering during clamping. The general automatic centering mechanical clamp has two-jaw and three-jaw mechanical clamps, and the so-called automatic centering four-jaw mechanical clamp in the market is characterized in that four mechanical jaws are driven by the same power to synchronously move towards the center, and are always stopped at a pair of mechanical jaws with large length dimension, and the other pair of mechanical jaws are in an unstressed or unclamped state, and are influenced by the mechanical principle and the tolerance of the clamped object in the clamping direction, so that the four-jaw mechanical clamp can not be automatically centered actually. And the direction of the two clamping connecting lines of the four jaws of the machine is generally 90 degrees and can not be changed. Therefore, the utility model relates to a can really be automatic alignment center, and two press from both sides the mechanical clamp that the line direction can change along with the work piece shape and be the urgent needs in the automation field.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses a four-claw automatic centering pneumatic series sleeve cylinder mechanical clamp, which adopts the technical proposal that the clamp comprises a shaft cylinder and a machine body;
shaft tube: the lower surfaces of the side surfaces are fixedly connected with the upper surfaces of two first shaft barrel dust-proof blocks and two second shaft barrel dust-proof blocks, cross-shaped chutes on the lower surfaces of the two first shaft barrel dust-proof blocks and the two second shaft barrel dust-proof blocks are respectively connected with the side surfaces of four sliding blocks in a sliding manner, tooth grooves are formed in the upper surfaces of the four sliding blocks, finger rods are arranged in the middle parts of the lower surfaces of the four sliding blocks in a threaded manner, inner hexagonal fastening is arranged in screw holes in the middle parts of the outer side surfaces of the four sliding blocks in a threaded manner, the inner side surfaces of the upper ends of the two first shaft barrel dust-proof blocks are rotatably connected with the middle parts of the side surfaces of two large gears, the two large gears are respectively meshed with the tooth grooves in the upper surfaces of the two transverse sliding blocks, the inner side surfaces of the upper ends of the two second shaft barrel dust-proof blocks are rotatably connected with the middle parts of the side surfaces of two small gears, and the two small gears are respectively meshed with the tooth grooves in the upper surfaces of the two longitudinal sliding blocks;
an organism: the machine body is connected with a shaft cylinder through four internal hexagonal screws, the interior of the lower end of the machine body is hollow, the upper side of the inner side surface of the machine body is connected with the side surface of a small piston rod in a sliding way, the side surface of the lower end of the small piston rod is arranged in the inner side surface of a large piston rod, the lower ends of the small piston rod and the large piston rod extend into the shaft cylinder, two groups of tooth sockets are respectively arranged on the side surfaces of the lower ends of the large piston rod and the small piston rod, the side surface of the lower end of the large piston rod is provided with a through groove corresponding to the two groups of tooth sockets on the small piston rod, the two through grooves are vertical to the direction of the tooth sockets on the large piston rod, the two groups of tooth sockets on the large piston rod are respectively meshed with two small gears, the two groups of tooth sockets on the small piston rod are respectively meshed with two large gears, a fastening joint is fixed in the middle part of the upper surface of the machine body through a fastening bolt, the machine body is connected with a zero point positioning machine body through the fastening joint, a zero point positioning body is arranged in the fastening joint, two pneumatic joints are arranged on two sides of the zero point positioning machine body and communicated with the interior of the machine body.
As a preferred technical scheme of the utility model, still include first O type sealing washer, second O type sealing washer, third O type sealing washer and fourth O type sealing washer, the medial surface of first O type sealing washer and second O type sealing washer and the side fixed connection of big piston rod upper end, and the medial surface contact of first O type sealing washer and second O type sealing washer and beam barrel, the side fixed connection at the little piston rod middle part of medial surface of third O type sealing washer, and the side of third O type sealing washer and the side contact of big piston rod, the medial surface of fourth O type sealing washer and the side fixed connection of little piston rod upper end, and the medial surface contact of the side of fourth O type sealing washer and organism.
As a preferred technical scheme of the utility model, still include axial key and interior hexagonal screw, the axial key is equipped with four, and four axial keys are established respectively in the side at four finger rod middle parts, and four slider lower surfaces set up the recess that corresponds with four axial keys, interior hexagonal screw is equipped with eight, in eight hexagonal screw respectively with two first axle section of thick bamboo dust proof blocks and the screw threaded connection of the upper and lower both sides of second axle section of thick bamboo dust proof blocks side.
As an optimized technical scheme of the utility model, still include the alignment piece, the middle part at four claw lid lower surfaces is fixed to the alignment piece.
As an optimal technical scheme of the utility model, still include the locating pin, the locating pin is equipped with two, and two locating pin establish the upper surface at the organism, and the lower surface of zero point location organism is equipped with the hole that corresponds with two locating pin.
The utility model has the advantages that: the utility model discloses be equipped with big piston rod in the organism, big piston rod endotheca has little piston rod, all the car has the modulus rack on big piston rod and the little piston rod, and all with sectorial gear wheel and sectorial pinion engagement, drive gear wheel and pinion rotation when big piston rod and little piston rod reciprocate, gear wheel and pinion drive the slider and be relative linear motion in the spout of beam barrel, thereby accomplish the clamp of work piece and loosen the action, and big piston rod and little piston rod cover are in the same place, but the cylinder is independent separately, and the lifting surface area of big piston rod and little piston rod equals, every can all self-centering when pressing from both sides to the jack catch like this, the clamp force is the same, unlikely to make the jack catch stop in that direction that length dimension is big and another a pair of gripper is in non-stressed or non-clamping state.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an internal front cross-sectional view of the present invention;
FIG. 3 is an internal side cross-sectional view of the present invention;
fig. 4 is a cross-sectional view of the gas circuit of the present invention.
In the figure: 1 shaft key, 2 four-claw covers, 3 finger rods, 4 hexagon socket head cap screws, 5 sliding blocks, 6 hexagon socket fastening, 7 first shaft barrel dustproof blocks, 8 large gears, 9 first O-shaped sealing rings, 10 second O-shaped sealing rings, 11 small piston rods, 12 third O-shaped sealing rings, 13 fourth O-shaped sealing rings, 14 zero-point positioning bodies, 15 fastening joints, 16 fastening bolts, 17 pneumatic joints, 18 pair blocks, 19 small gears, 20 inner hexagonal screws I, 21 second shaft barrel dustproof blocks, 22 shaft barrels, 23 inner hexagonal screws II, 24 large piston rods, 25 machine bodies, 26 positioning shaft pins and 27 zero-point positioning machine bodies.
Detailed Description
Example 1
As shown in fig. 1 to 3, the utility model discloses a four-claw automatic centering pneumatic series sleeve cylinder mechanical clamp, which adopts the technical scheme that the clamp comprises a shaft cylinder 22 and a machine body 25;
the shaft tube 22: the lower surfaces of the side surfaces are fixedly connected with the upper surfaces of the two first shaft barrel dustproof blocks 7 and the two second shaft barrel dustproof blocks 21, and the cross sliding grooves on the lower surfaces of the two first shaft barrel dustproof blocks 7 and the two second shaft barrel dustproof blocks 21 are respectively connected with the side surfaces of the four sliding blocks 5 in a sliding way, the upper surfaces of the four sliding blocks 5 are all provided with tooth sockets, the middle parts of the lower surfaces of the four sliding blocks 5 are all provided with finger rods 3 in a threaded manner, screw holes in the middle parts of the outer side surfaces of the four sliding blocks 5 are all provided with inner hexagonal fasteners 6 in a threaded manner, the inner side surfaces of the upper ends of the two first shaft barrel dust-proof blocks 7 are rotatably connected with the middle parts of the side surfaces of the two big gears 8, the two large gears 8 are respectively meshed with tooth grooves on the upper surfaces of the two transverse sliding blocks 5, the inner side surfaces of the upper ends of the two second shaft barrel dust-proof blocks 21 are rotatably connected with the middle parts of the side surfaces of the two small gears 19, and the two small gears 19 are respectively meshed with the tooth grooves on the upper surfaces of the two longitudinal sliding blocks 5;
body 25: the upper side of the inner side of the machine body 25 is connected with the side surface of the small piston rod 11 in a sliding way, the side surface of the lower end of the small piston rod 11 is in sliding contact with the inner side surface of the large piston rod 24, the lower ends of the small piston rod 11 and the large piston rod 24 extend into the shaft cylinder 22, two groups of tooth grooves are formed in the side surfaces of the lower ends of the large piston rod 24 and the small piston rod 11, through grooves corresponding to the two groups of tooth grooves in the small piston rod 11 are formed in the side surface of the lower end of the large piston rod 24, the two through grooves are perpendicular to the direction of the tooth grooves in the large piston rod 24, the two groups of tooth grooves in the large piston rod 24 are respectively meshed with the two small gears 19, the two groups of tooth grooves in the small piston rod 11 are respectively meshed with the two large gears 8, a fastening joint 15 is fixed in the middle of the upper surface of the machine body 25 through a fastening bolt 16, and the machine body 25 is connected with a zero point positioning machine body 27 through the fastening joint 15, the fastening joint 15 is internally provided with a zero point positioning body 14, two sides of the zero point positioning machine body 27 are provided with two pneumatic joints 17, and the two pneumatic joints 17 are communicated with the inside of the machine body 25.
As a preferred technical scheme of the utility model, still include first O type sealing washer 9, second O type sealing washer 10, third O type sealing washer 12 and fourth O type sealing washer 13, the medial surface of first O type sealing washer 9 and second O type sealing washer 10 and the side fixed connection of big piston rod 24 upper end, and the medial surface contact of first O type sealing washer 9 and second O type sealing washer 10 and beam barrel 22, the side fixed connection at the little piston rod 11 middle part of medial surface of third O type sealing washer 12, and the side of third O type sealing washer 12 and the side contact of big piston rod 24, the medial surface of fourth O type sealing washer 13 and the side fixed connection of little piston rod 11 upper end, and the medial surface contact of fourth O type sealing washer 13 and organism 25.
As an optimal technical scheme of the utility model, still include shaft key 1 and interior hexagonal screw I20, shaft key 1 is equipped with four, and four shaft keys 1 are established respectively in the side at 3 middle parts of four finger levers, and four 5 lower surfaces of slider set up the recess that corresponds with four shaft keys 1, and interior hexagonal screw I20 is equipped with eight, in eight hexagonal screw I20 respectively with two first axle section of thick bamboo dust proof blocks 7 and the screw threaded connection of both sides about the second axle section of thick bamboo dust proof blocks 21 side.
As a preferred technical scheme of the utility model, still include alignment block 18, alignment block 18 fixes in the middle part of four paws lid 2 lower surface.
As an optimal technical scheme of the utility model, still include locating pin 26, locating pin 26 is equipped with two, and two locating pin 26 are established at organism 25's upper surface, and the lower surface of zero point location organism 27 is equipped with the hole that corresponds with two locating pin 26.
The utility model discloses a theory of operation: the mechanical clamp is fixed on a manipulator through a zero machine body 27, two pneumatic connectors 17 are communicated with an external air supply pipeline, when the mechanical clamp is used, external compressed air enters the machine body 25 through the pneumatic connectors 17, the internal pneumatic reversing valve controls the compressed air from A to B to C, the compressed air passes through six through holes in a large piston rod 24 to D, the large piston rod 24 and a small piston rod 11 are pushed to rise, so that a large gear 8 and a small gear 19 are driven to relatively rotate inwards, the large gear 8 and the small gear 19 drive two pairs of sliding blocks 5 to synchronously slide inwards, two pairs of finger rods 3 simultaneously move inwards to realize clamping action, a pneumatic loop is discharged into the atmosphere from G, H to F through the pneumatic reversing valve and a silencer, when the mechanical clamp is loosened, the internal pneumatic reversing valve controls the compressed air from E to F to G, H to push the large piston rod 24 and the small piston rod 11 to fall, thereby driving the bull gear 8 and the pinion 19 to rotate outwards relatively, the bull gear 8 and the pinion 19 drive the two pairs of sliders 5 to slide outwards synchronously, realizing the loosening action, and the pneumatic circuit passes through six through holes on the big piston rod 24 from D to C to BZ and then to A, and then is discharged into the atmosphere through the pneumatic reversing valve and the silencer.
It should be noted that: the annular bearing area on the large piston rod 24 is equal to that of the small piston rod 11, so that the clamping force of the two pairs of sliders 5 is the same.
The mechanical clamp can be made into a shaft type according to the using condition, can also be made into a special-shaped jaw by using a positive jaw and a negative jaw on a three-jaw chuck, and can also be made into a special-shaped jaw according to the shape of a workpiece.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.
Claims (5)
1. A four-claw automatic centering pneumatic tandem sleeve mechanical clamp is characterized by comprising a shaft barrel (22) and a machine body (25);
shaft tube (22): the lower surface of the side surface is fixedly connected with the upper surfaces of two first shaft barrel dust-proof blocks (7) and two second shaft barrel dust-proof blocks (21), the cross-shaped chutes of the lower surfaces of the two first shaft barrel dust-proof blocks (7) and the two second shaft barrel dust-proof blocks (21) are respectively in sliding connection with the side surfaces of four sliding blocks (5), tooth grooves are respectively arranged on the upper surfaces of the four sliding blocks (5), finger rods (3) are respectively arranged in the middle parts of the lower surfaces of the four sliding blocks (5), inner hexagonal fastening sets (6) are respectively arranged in screw holes in the middle parts of the outer side surfaces of the four sliding blocks (5), the inner side surfaces of the upper ends of the two first shaft barrel dust-proof blocks (7) are rotatably connected with the middle parts of the side surfaces of two large gears (8), the two large gears (8) are respectively engaged with the upper surfaces of the two transverse sliding blocks (5), the inner side surfaces of the upper ends of the two second shaft barrel dust-proof blocks (21) are rotatably connected with the middle parts of the side surfaces of two small gears (19), and the two pinions (19) are respectively meshed with tooth grooves on the upper surfaces of the two longitudinal sliding blocks (5);
body (25): the inner part of the lower end of the machine body (25) is hollow, the upper side of the inner side surface of the machine body (25) is connected with the side surface of the small piston rod (11) in a sliding way, the side surface of the lower end of the small piston rod (11) is connected with the inner side surface of the large piston rod (24) in a sliding way, the lower ends of the small piston rod (11) and the large piston rod (24) extend into the inner part of the shaft cylinder (22), the side surfaces of the lower ends of the large piston rod (24) and the small piston rod (11) are respectively provided with two groups of tooth sockets, the side surface of the lower end of the large piston rod (24) is provided with through grooves corresponding to the two groups of tooth sockets on the small piston rod (11), the two through grooves are vertical to the direction of the tooth sockets on the large piston rod (24), the two groups of tooth sockets on the large piston rod (24) are respectively meshed with the two small gears (19), and the two groups of tooth sockets on the small piston rod (11) are respectively meshed with the two large gears (8), the machine body is characterized in that a fastening joint (15) is fixed in the middle of the upper surface of the machine body (25) through a fastening bolt (16), the machine body (25) is connected with a zero point positioning machine body (27) through the fastening joint (15), a zero point positioning body (14) is arranged inside the fastening joint (15), two pneumatic joints (17) are arranged on two sides of the zero point positioning machine body (27), and the two pneumatic joints (17) are communicated with the inside of the machine body (25).
2. The mechanical clamp of the four-claw automatic centering pneumatic tandem sleeve cylinder as claimed in claim 1, wherein: still include first O type sealing washer (9), second O type sealing washer (10), third O type sealing washer (12) and fourth O type sealing washer (13), the medial surface of first O type sealing washer (9) and second O type sealing washer (10) and the side fixed connection of big piston rod (24) upper end, and the medial surface contact of first O type sealing washer (9) and second O type sealing washer (10) and axle cylinder (22), the side fixed connection at the little piston rod of medial surface (11) middle part of third O type sealing washer (12), and the side of third O type sealing washer (12) and the side contact of big piston rod (24), the medial surface of fourth O type sealing washer (13) and the side fixed connection of little piston rod (11) upper end, and the medial surface contact of fourth O type sealing washer (13) and organism (25).
3. The mechanical clamp of the four-claw automatic centering pneumatic tandem sleeve cylinder as claimed in claim 1, wherein: still include axial key (1) and interior hexagonal screw I (20), axial key (1) is equipped with four, and four axial keys (1) are established respectively in the side at four finger rod (3) middle parts, and four slider (5) lower surfaces offer the recess that corresponds with four axial keys (1), interior hexagonal screw I (20) is equipped with eight, and eight interior hexagonal screw I (20) respectively with the screw threaded connection of both sides about two first cylinder dust proof blocks (7) and second cylinder dust proof blocks (21) side.
4. The mechanical clamp of the four-claw automatic centering pneumatic tandem sleeve cylinder as claimed in claim 1, wherein: the four-jaw cover also comprises a pair of aligning blocks (18), and the pair of aligning blocks (18) are fixed in the middle of the lower surface of the four-jaw cover (2).
5. The mechanical clamp of the four-claw automatic centering pneumatic tandem sleeve cylinder as claimed in claim 1, wherein: the zero point positioning machine body is characterized by further comprising two positioning shaft pins (26), the two positioning shaft pins (26) are arranged on the upper surface of the machine body (25), and holes corresponding to the two positioning shaft pins (26) are formed in the lower surface of the zero point positioning machine body (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120460216.1U CN215149214U (en) | 2021-03-03 | 2021-03-03 | Four-claw automatic centering pneumatic series sleeve mechanical clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120460216.1U CN215149214U (en) | 2021-03-03 | 2021-03-03 | Four-claw automatic centering pneumatic series sleeve mechanical clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215149214U true CN215149214U (en) | 2021-12-14 |
Family
ID=79413450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120460216.1U Expired - Fee Related CN215149214U (en) | 2021-03-03 | 2021-03-03 | Four-claw automatic centering pneumatic series sleeve mechanical clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215149214U (en) |
-
2021
- 2021-03-03 CN CN202120460216.1U patent/CN215149214U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |