CN112123245A

CN112123245A - Clamping device for petroleum machinery workpiece

Info

Publication number: CN112123245A
Application number: CN202011085339.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Donggang Zhike Industrial Park Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2020-12-25
Anticipated expiration: 2040-10-12
Also published as: CN112123245B; CN113370107A

Abstract

The invention discloses a clamping device for petroleum machinery workpieces, which comprises a shell, a clamping mechanism and a magnetic suction mechanism, wherein the magnetic suction mechanism and the clamping mechanism are arranged in the shell from top to bottom, the clamping mechanism is used for fixedly clamping workpieces with different sizes through non-Newtonian fluid, the magnetic suction mechanism is used for electromagnetically adsorbing the workpieces through a magnetic field, and the magnetic suction mechanism is used for assisting in clamping the workpieces through the non-Newtonian fluid. The clamping mechanism is adaptive to workpieces with different sizes, the workpieces are fixedly clamped by squeezing the non-Newtonian fluid, meanwhile, the magnetic suction mechanism performs electromagnetic adsorption on the workpieces through electromagnetism, so that the workpieces are fixed in the device, the workpieces are fixed again, and the clamping force of the device on the workpieces is increased.

Description

Clamping device for petroleum machinery workpiece

Technical Field

The invention relates to the technical field of workpiece clamping, in particular to a clamping device for petroleum machinery workpieces.

Background

Petroleum, a viscous, dark brown liquid, is known as "industrial blood". The main object of geological exploration is a mixture of various alkanes, cyclanes and aromatics. Petroleum is used primarily as fuel and gasoline, but is also a feedstock for many chemical industry products such as solutions, fertilizers, pesticides, and plastics. With the continuous development of the times, automobile users are more and more, the demand of oil is also increased, and the oil exploration and exploitation machines are increased continuously, so that some workpieces need to be clamped for replacement and use during exploration and exploitation operations.

The existing petroleum machinery workpieces are mostly in irregular shapes, and the petroleum machinery workpieces are unstable in clamping of the clamping device to the petroleum machinery workpieces due to the fact that the contact area of the petroleum machinery workpieces with the clamping device is small, looseness easily occurs during clamping, and then exploration and exploitation operations of petroleum are influenced. And current clamping device is mostly the special-shaped fixture according to special work piece profile structure design, but when carrying out the centre gripping operation to multiple size and multiple type work piece, need design and reserve multiple clamping head, this still need spend extra repeated assembly time when will causing the cost to increase, so, people need a clamping device who is used for the oil machinery work piece to solve above-mentioned problem.

Disclosure of Invention

The present invention is directed to a clamping device for a petroleum machine workpiece to solve the above-mentioned problems of the background art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a clamping device for petroleum machinery work piece, this clamping device include shell, fixture, magnetism inhale the mechanism, from last to being provided with magnetism to inhale mechanism, fixture down in the shell, fixture fixes the centre gripping through non-Newton fluid to the work piece of equidimension not, magnetism is inhaled the mechanism and is carried out the electromagnetism through magnetic field to the work piece and adsorb, and magnetism is inhaled the mechanism and is carried out supplementary centre gripping through non-Newton fluid to the work piece. The clamping mechanism is adaptive to workpieces with different sizes, the workpieces are fixedly clamped by squeezing the non-Newtonian fluid, meanwhile, the magnetic suction mechanism performs electromagnetic adsorption on the workpieces through electromagnetism, so that the workpieces are fixed in the device, the workpieces are fixed again, and the clamping force of the device on the workpieces is increased.

As a preferred technical scheme, the clamping mechanism comprises a bearing plate and a plurality of groups of clamping shafts arranged on the bearing plate, the bearing plate is fixed with the shell, the plurality of groups of clamping shafts are rotatably connected with the bearing plate, and the plurality of groups of clamping shafts are slidably connected with the shell; the magnetic attraction mechanism comprises a magnetic attraction component and a reinforcing component, the magnetic attraction component is fixed to the shell, the magnetic attraction component is arranged in the middle of the reinforcing component, the reinforcing component is connected with the shell in a sliding mode, and the reinforcing component provides assistance for fixing a workpiece. The loading board provides the support for the installation of centre gripping axle, provides the support for the removal of centre gripping axle simultaneously, and the centre gripping axle moves toward the middle part of shell on bearing under the promotion of non-Newtonian fluid, and magnetism subassembly is inhaled the magnetic field through the circular telegram and is carried out magnetism to the work piece, consolidates the subassembly and provides the helping hand for the centre gripping of work piece is fixed through the extrusion to non-Newtonian fluid, and when the work piece inserted in the shell, magnetism subassembly is inhaled the work piece magnetism earlier to the work piece, in order to make things convenient for clamping mechanism and reinforcement subassembly to be fixed to the centre gripping of.

According to a preferable technical scheme, a vertical pipe is arranged in the middle of the inner part of the shell; the loading board cover is established in the standpipe outside, a plurality of groups centre gripping axle and standpipe sliding connection, the inside position that corresponds a plurality of groups centre gripping axles of loading board all is provided with the shifting chute, a plurality of groups the middle part position in shifting chute is provided with drive gear, a plurality of groups centre gripping axle lower extreme is provided with the rack, the rack rotates with drive gear and is connected. The standpipe provides the required space for the centre gripping, fixed for the work piece, the standpipe is run through to the one end of centre gripping axle to with standpipe sliding connection, the shifting chute provides the support for the removal of centre gripping axle and the flow of non-Newtonian fluid, rotating gear and rack provide the basis for the removal of centre gripping axle, rotating gear rotates under non-Newtonian fluid's promotion, the other end intercommunication loading board of shifting chute upper end face and form the liquid outlet, the liquid outlet is located between centre gripping axle one end and the shell inner wall.

As preferred technical scheme, the inside standpipe outside that is located of shell is provided with extrusion subassembly, extrusion subassembly is located the top of loading board, and extrusion subassembly includes stripper plate, pushes down the unit, it is fixed with the inside upper end of shell to push down the unit upper end, and it is fixed with the stripper plate to push down the unit lower extreme, stripper plate and standpipe sliding connection, the stripper plate top is provided with the liquid reserve tank, liquid reserve tank and stripper plate pipe connection. The extrusion subassembly extrudees the non-Newtonian fluid on the loading board, make the non-Newtonian fluid become the solid after receiving the extrusion, thereby realize the fixed to the centre gripping axle, the stripper plate extrudees the non-Newtonian fluid under the support of pushing down the subassembly, the pushing down the subassembly provides power for the decline of stripper plate, the liquid reserve tank stores the non-Newtonian fluid, when needs fix the centre gripping axle, release the non-Newtonian fluid in the liquid reserve tank to the loading board, thereby fill up the space between the centre gripping axle, thereby make and be filled up the non-Newtonian fluid between stripper plate and the loading board, thereby realize fixing comprehensively to the back shaft.

As a preferred technical scheme, a transmission assembly is arranged in the shell below the bearing plate and comprises a second liquid storage tank and at least two groups of displacement pumps, wherein the at least two groups of displacement pumps are connected with the second liquid storage tank through pipelines, and the at least two groups of displacement pumps are connected with the moving groove through pipelines; at least two sets of backflow holes are formed in the bearing plate between every two sets of clamping shafts, a flow control assembly is arranged in each backflow hole, and the second liquid storage tank is connected with the liquid storage tank through a pipeline. The transmission assembly infuses non-Newtonian fluid to the upper portion of the bearing plate, the position of the clamping shaft is driven to move through the flow of the non-Newtonian fluid, the transmission assembly is enabled to be in contact with a workpiece, the second liquid storage tank stores the non-Newtonian fluid, the volumetric pump extracts the non-Newtonian fluid in the second liquid storage tank and transmits the non-Newtonian fluid to the moving groove, the backflow hole provides a channel for recycling the non-Newtonian fluid above the bearing plate, the flow control assembly controls the conduction and the closing of the backflow hole, when the position of the clamping shaft needs to be fixed, the backflow hole is closed by the flow control assembly, when the clamping shaft needs to be restored to the original position, the backflow hole is conducted by the flow control assembly, the non-Newtonian fluid on the bearing plate flows into the second liquid storage tank, and other volumetric pumps are provided again to.

As preferred technical scheme, a plurality of groups the centre gripping axle all includes outer axle, outer epaxial four at least groups pressure-bearing plates that are provided with, outer inside of the axle is provided with annotates the type subassembly, and the one end that outer axle and standpipe are connected is provided with the adaptation case, adaptation case and outer shaft piping connection, it includes the extrusion jar to annotate the type subassembly, be provided with the slurcam on the extrusion jar, slurcam and outer shaft sliding connection. The outer shaft provides support for the installation of the pressure bearing plate, the injection-molding assembly and the adaptation box, the non-Newtonian fluid is infused in the outer shaft to provide support for the shape fixation of the adaptation box, the pressure bearing plate provides auxiliary power for the movement of the clamping shaft, when the non-Newtonian fluid flows above the bearing plate, the bearing plate provides moving assistance for the movement of the clamping shaft under the impact of the non-Newtonian fluid, when the injection type assembly is in contact with the workpiece and deforms, the non-Newtonian fluid is extruded to fix the shape of the adaptation box, meanwhile, the non-Newtonian fluid is extruded to become solid, therefore, the adaptation box is changed into a workpiece with a fixed shape, the petroleum machinery workpiece is fixed, the extrusion cylinder provides power for the movement of the push plate, the push plate pushes the non-Newtonian fluid in the outer shaft under the pushing of the extrusion cylinder, and the non-Newtonian fluid enters the adaptation box to be changed into a solid under the extrusion of the external force.

As preferred technical scheme, the adaptation case is including deciding the case, decide the case and fix with outer axle, decide the case and keep away from the one end of outer axle and be provided with a plurality of groups movable plate, a plurality of groups the movable plate all with decide case sliding connection, a plurality of groups equal sliding connection between the movable plate, the one end that the case was kept away from to a plurality of groups movable plate is provided with the fixed plate, be provided with the reservoir in the adaptation case, the reservoir is connected with outer pump line. The fixed box is an installation support of the movable plate, after the movable plate is contacted with a workpiece, the movable plate is contracted in a adaptability mode on the fixed box, a notch formed by the movable plate is made to conform to the shape of the workpiece, the fixed plate is contacted with the workpiece and extrudes each group of movable plates, the movable plate is retracted into the fixed box, the fixed plate is made of a memory metal material and can restore to the original shape after being deformed, meanwhile, the contact area of the adaptive box and the workpiece can be increased through the fixed plate, and the liquid storage bag stores non-Newtonian fluid pushing the plate into the adaptive box and prevents the non-Newtonian fluid from flowing out of the device.

As preferred technical scheme, the outer axle is the drum structure, four at least groups bearing plate one end is connected with outer rotation of axle, and the bearing plate other end is connected with outer shaft spring, outer epaxial position of being connected with the bearing plate rotation is provided with the slide, inside the slide other end intercommunication outer axle, the bearing plate slides toward the outer axle outside through the slide. The drum structure is the extrusion jar, the installation of slurcam provides the support, simultaneously for the storage of non-Newtonian fluid provides the space, bearing plate one end is connected with outer rotation, the spring of the other end provides power for the reseing of bearing plate, the slide provides the support for the slip of rotating the link, slide and outer axle inner space intercommunication, when making to adapt to the case and carry out the shape fixed, non-Newtonian fluid enters into in the slide under the extrusion, thereby extrude outer axle with the one end of bearing plate, make the bearing plate extrude the standpipe, through the extrusion of loading board to the standpipe, make the centre gripping axle obtain the power of outside motion to standpipe central direction motion promptly, thereby increase the centre gripping dynamics to the work piece.

According to a preferable technical scheme, the magnetic suction assembly and the reinforcing assembly are both positioned at the upper end of the interior of the vertical pipe, the magnetic suction assembly comprises a magnetic suction plate, the magnetic suction plate is fixed with the shell, and a coil is arranged in the magnetic suction plate; the reinforcing component comprises a reinforcing air bag, the upper end of the reinforcing air bag is fixed with the magnetic suction plate, the lower end of the reinforcing air bag is fixed with the inner wall of the vertical pipe, a plurality of groups of expansion plates are arranged at the lower end inside the reinforcing air bag, and the plurality of groups of expansion plates are fixed with the reinforcing air bag. Magnetic suction plate passes through the coil circular telegram and produces magnetic field, and carry out magnetism through magnetic field to the work piece and inhale, make the work piece adsorbed in the standpipe, consolidate the gasbag and carry out the cubic centre gripping to the work piece, provide the helping hand for the centre gripping work piece, consolidate gasbag and standpipe, magnetic suction plate mutually supports and forms the space that stores to non-Newtonian fluid, the expansion plate is installed inside and is located the bottom at the storage space that consolidates the gasbag formation, the expansion plate divide into fixed cover shell and sliding plate, the fixed helping hand board of front end of sliding plate, helping hand board and the fixed surface who consolidates the gasbag, a plurality of groups of expansion plates provide the bottom plate for the storage space of.

According to a preferable technical scheme, the reinforcing assembly further comprises a lower pressing unit, the upper end of the lower pressing unit is fixed with the inner wall of the shell, a reinforcing plate is arranged at the lower end of the lower pressing unit, and the reinforcing plate is connected with the reinforcing air bag in a sliding mode; the two groups of pressing units comprise at least four groups of motors, at least eight groups of motors are fixed with the inner wall of the shell, at least eight groups of motors are provided with screw rods, nuts are arranged on the screw rods, at least four groups of nuts in the two groups of pressing units are provided with connecting plates, one group of connecting plates are fixed with the extrusion plate, and the other group of connecting plates are fixed with the reinforcing plate. When the reinforcing plate downwards extrudes the non-Newtonian fluid inside the reinforcing air bag, the non-Newtonian fluid generates an outward pulling force on the expansion plate through the boosting plate, so that the expansion plate is extended, meanwhile, the boosting plate outwards supports the reinforcing air bag under the driving of the expansion plate, when the non-Newtonian fluid is extruded to a certain degree, the non-Newtonian fluid becomes a solid, so that the shape of the reinforcing air bag is fixed, the motor provides power for the descending of the reinforcing plate and the extrusion plate, the lead screw provides support for descending height, the nut downwards moves under the rotation of the lead screw, the nut is connected with the connecting plate through the supporting plate, the connecting plate downwards moves when the nut descends and drives the reinforcing plate and the extrusion plate to downwards move, the supporting plate uniformly distributes the descending power provided by the four groups of motors on the connecting plate, and the reinforcing plate and the extrusion plate uniformly extrude the non-Newtonian fluid.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the clamping device, the clamping mechanism is used for fixedly clamping a workpiece through extrusion of non-Newtonian fluid, meanwhile, the magnetic suction mechanism is used for electromagnetically adsorbing the workpiece through electromagnetism, so that the workpiece is fixed in the device, the workpiece is fixed again, the clamping force of the device on the workpiece is increased through the mutual matching of the clamping mechanism and the magnetic suction mechanism, the clamping mechanism is self-adaptive to workpieces with different sizes and shapes, the clamping mechanism can clamp and fix the workpiece only by putting the workpiece into the device, multiple times of adjustment and repeated assembly of the workpiece are not needed, the installation time is shortened, and the working efficiency is improved.

2. According to the invention, the adaptation box is in contact with the workpiece under the pushing of the clamping shaft and is correspondingly deformed according to the shape of the workpiece, the injection-type assembly extrudes the non-Newtonian fluid when the adaptation box is in contact with the workpiece and deforms, so that the shape of the adaptation box is fixed, and meanwhile, the non-Newtonian fluid is changed into a solid after being extruded, so that the adaptation box is changed into the workpiece with a fixed shape and is fixed on the petroleum machinery workpiece, and meanwhile, the adaptation box is provided with the fixing plate to increase the contact area with the workpiece, so that the fixation is firmer.

3. According to the invention, the clamping shaft is arranged through the bearing plate, on one hand, when the clamping shaft moves on the bearing plate, the bearing plate is contacted with the non-Newtonian fluid and blocks the flow direction of the non-Newtonian fluid, so that the bearing plate obtains moving power and transmits the moving power to the clamping shaft, and assistance is provided for the movement of the clamping shaft; on the other hand, bearing plate one end is connected with outer hub rotation, and slide and outer axle inner space intercommunication for when carrying out the shape fixed to the adaptation case, non-Newtonian fluid enters into the slide under the extrusion, thereby extrude the outer axle with the one end of bearing plate, make the bearing plate extrude the standpipe, through the extrusion of loading board to the standpipe, make the power of centre gripping axle acquisition outside motion to standpipe center direction motion promptly, thereby increase the centre gripping dynamics to the work piece.

4. In the invention, the clamping shaft is provided with the bearing plate, so that more fixing force from non-Newtonian fluid is obtained; when the clamping shafts need to be fixed, the non-Newtonian fluid in the liquid storage tank is released onto the bearing plate by the extrusion assembly, so that the space between the clamping shafts is filled, the non-Newtonian fluid is filled between the extrusion plate and the bearing plate, the bearing plate is unfolded on two sides of the clamping shafts under the support of the springs, the bearing plate is covered in the non-Newtonian fluid, the non-Newtonian fluid on the bearing plate is extruded by the extrusion assembly, the non-Newtonian fluid is changed into a solid after being extruded, the clamping shafts and the bearing plate are fixed, the clamping shafts are fixed comprehensively, the contraction of the clamping shafts in the device due to the rotation of the workpiece is prevented, and the loosening of the workpiece in the device is prevented.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the installation of the overall structure of the present invention;

FIG. 2 is a front schematic view of the overall structure of the present invention;

FIG. 3 is a top view of the housing and fixture attachment of the present invention;

FIG. 4 is a front view of the carrier plate and clamping shaft of the present invention;

FIG. 5 is a schematic view of the construction of the clamping shaft of the present invention;

FIG. 6 is a schematic diagram of the adaptive pod configuration of the present invention;

fig. 7 is a schematic view of a movable plate connecting structure of the present invention.

In the figure: 1. a housing; 2. a clamping mechanism; 3. a magnetic attraction mechanism; 1-1, a vertical tube; 1-2, extruding a plate; 1-3, a liquid storage tank; 1-4, a second liquid storage tank; 1-5, a positive displacement pump; 2-1, carrying a plate; 2-2, clamping a shaft; 2-3, an outer shaft; 2-4, a pressure bearing plate; 2-5, an adaptation box; 2-6, extruding a cylinder; 2-11, moving groove; 2-51, fixing the box; 2-52, a movable plate; 2-53, a fixing plate; 3-1, magnetically attracting the board; 3-2, reinforcing the air bag; 3-3, a telescopic plate; 3-4, and a reinforcing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides the following technical solutions: a clamping device for petroleum machinery workpieces comprises a shell 1, a clamping mechanism 2 and a magnetic suction mechanism 3, wherein the magnetic suction mechanism 3 and the clamping mechanism 2 are arranged in the shell 1 from top to bottom, a vertical pipe 1-1 is vertically fixed at the middle position inside the shell 1, an inlet and an outlet of a workpiece are machined below the vertical pipe 1-1 of the shell 1, the clamping mechanism 2 is located on the outer side of the vertical pipe 1-1, the magnetic suction mechanism 3 is located at the upper end inside the vertical pipe 1-1, the clamping mechanism 2 is used for fixedly clamping workpieces of different sizes through non-Newtonian fluid, the magnetic suction mechanism 3 is used for electromagnetically adsorbing the workpieces through a magnetic field, and the magnetic suction mechanism 3 is used for assisting in clamping the workpieces through the non-Newtonian fluid.

The inner portion of the shell 1 is located on the outer side of the vertical pipe 1-1, an extrusion assembly is located above the clamping mechanism 2 and comprises an extrusion plate 1-2 and a pressing unit, the upper end of the pressing unit is fixed with the inner upper end of the shell 1, the lower end of the pressing unit is fixed with the extrusion plate 1-2, the extrusion plate 1-2 is in sliding connection with the shell 1 and the vertical pipe 1-1, two groups of liquid storage tanks 1-3 are mounted above the extrusion plate 1-2, a liquid outlet is formed in the extrusion plate 1-2 and located below the liquid storage tanks 1-3, electromagnetic valves are mounted in the liquid outlet, and the liquid storage tanks 1-3 are in pipeline connection with the liquid outlet in the extrusion plate 1-2.

A transmission assembly is arranged below the clamping mechanism 2 inside the shell 1 and comprises second liquid storage tanks 1-4 and five groups of volumetric pumps 1-5, one ends of the five groups of volumetric pumps 1-5 are connected with the second liquid storage tanks 1-4 through pipelines, the other ends of the three groups of volumetric pumps 1-5 are connected with the clamping mechanism 2 through pipelines, and the other ends of the rest two groups of volumetric pumps 1-5 are connected with the liquid storage tanks 1-3 through pipelines.

The clamping mechanism 2 comprises a bearing plate 2-1 and a plurality of groups of clamping shafts 2-2 arranged on the bearing plate 2-1, the bearing plate 2-1 is fixed with the shell 1 and the vertical pipe 1-1, the plurality of groups of clamping shafts 2-2 are rotatably connected with the bearing plate 2-1, and one ends of the plurality of groups of clamping shafts 2-2 penetrate through the vertical pipe 1-1 and are connected with the vertical pipe 1-1 in a sliding manner.

A bearing plate 2-1 is sleeved outside a vertical pipe 1-1, a sliding groove is processed at the position of the upper end surface of the bearing plate 2-1 corresponding to a clamping shaft 2-2, the clamping shaft 2-2 is positioned in the sliding groove, a moving groove 2-11 is processed at the lower part of the sliding groove in the bearing plate 2-1, a transmission pipe is processed at the lower part of the moving groove 2-11, a rotating gear is rotatably installed at the middle position of the transmission pipe, one end of the transmission pipe is communicated with the lower end surface of the bearing plate 2-1, the other end of the transmission pipe is communicated with the upper end surface of the bearing plate 2-1, an annular pipeline is fixed at the position where the transmission pipe is communicated with the lower end surface of the bearing plate 2-1, the transmission pipe is communicated with the annular pipeline, three groups of volumetric pumps 1-5 are connected with the annular pipeline, gear bars are fixed at the lower ends of a, the length of the gear strip is 1/2 of that of the clamping shaft 2-2, the gear strip is positioned at one end of the clamping shaft 2-2 close to the shell 1, and the gear strip is rotationally connected with the rotating gear.

Two groups of backflow holes are processed between every two groups of clamping shafts 2-2 on the bearing plate 2-1, a flow control assembly is installed in each group of backflow holes and is composed of a plurality of groups of crescent-shaped plates and a rotating plate, the crescent-shaped plates are connected with the bearing plate 2-1 in a rotating mode and are connected with the rotating plate in a sliding mode, arc-shaped sliding grooves are processed on the rotating plate, and the rotating plate enables the crescent-shaped plates to block or conduct the backflow holes through the arc-shaped sliding grooves when rotating.

The clamping shafts 2-2 comprise outer shafts 2-3, the outer shafts 2-3 are of a cylindrical structure, four groups of pressure bearing plates 2-4 are rotatably mounted on the outer shafts 2-3, an adaptation box 2-5 is fixed at one end of each outer shaft 2-1 in sliding connection with a vertical pipe 1-1, an injection assembly is mounted inside each outer shaft 2-3 and comprises an extrusion cylinder 2-6, the extrusion cylinder 2-6 is an air cylinder, the extrusion cylinder 2-6 is mounted inside each outer shaft 2-3, a push plate is fixed on each extrusion cylinder 2-6 and is in sliding connection with the inner wall of each outer shaft 2-3, non-Newtonian fluid is contained inside each outer shaft 2-3 and is located between the push plate and the adaptation box 2-5 and inside the adaptation box 2-5.

The adaptation box 2-5 is positioned inside the vertical pipe 1-1, the adaptation box 2-5 comprises a fixed box 2-51, the fixed box 2-51 is fixed with an outer shaft 2-3, a through hole is processed on the fixed box 2-51, the fixed box 2-51 is communicated with the inside of the outer shaft 2-3 through the through hole, a plurality of groups of movable plates 2-52 are slidably mounted at one end of the fixed box 2-51 far away from the outer shaft 2-3, the plurality of groups of movable plates 2-52 are connected in a sliding manner, a fixed plate 2-53 is rotatably mounted at one end of the plurality of groups of movable plates 2-52 far away from the fixed box 2-51, a liquid storage bag is mounted in the adaptation box 2-5, and the liquid storage bag is connected with an outer.

Two groups of contraction grooves are respectively processed on two sides of an outer shaft 2-3, four groups of pressure bearing plates 2-4 are rotatably connected with the outer shaft 2-3 at one end of each contraction groove close to a vertical pipe 1-1, the contraction grooves and the pressure bearing plates 2-4 are identical in size and shape, the other ends of the pressure bearing plates 2-4 are connected with a contraction groove spring, when the pressure bearing plates 2-4 extend into the vertical pipe 1-1 through a clamping shaft 2-2, the pressure bearing plates 2-4 are embedded into the contraction grooves, a slide way is processed on the outer shaft 2-3 at the position rotatably connected with the pressure bearing plates 2-4, the other ends of the slide ways are communicated with the inner part of the outer shaft 2-3, and the pressure bearing plates 2-4 slide towards the outer side of the outer shaft 2-3 through the.

The magnetic attraction mechanism 3 comprises a magnetic attraction component and a reinforcing component;

the magnetic suction assembly and the reinforcing assembly are located at the upper end of the interior of the vertical pipe 1-1, the magnetic suction assembly comprises a magnetic suction plate 3-1, the magnetic suction plate 3-1 is fixed to the inner wall of the shell 1 through a connecting rod, a coil is mounted inside the magnetic suction plate 3-1, a power supply assembly and a control system (not shown in the drawing) are mounted on the upper end face of the magnetic suction plate 3-1, and the control system is electrically connected with the power supply assembly, the extrusion assembly and the transmission assembly.

The reinforcing component comprises a reinforcing air bag 3-2, the upper end of the reinforcing air bag 3-2 is fixed with the edge of a magnetic suction plate 3-1, the lower end of the reinforcing air bag 3-2 is fixed with the inner wall of a vertical pipe 1-1, a plurality of groups of expansion plates 3-3 are fixedly installed at the lower end inside the reinforcing air bag 3-2, the expansion plates 3-3 are matched with each other to form a circular ring at the bottom of the reinforcing air bag 3-2, so that the bottom of the reinforcing air bag 3-2 is supported, an assisting plate is fixed at one end, away from the vertical pipe 1-1, of each expansion plate 3-3, and the assisting plate is fixed with one side end face, away from the vertical pipe 1-1.

The reinforcing component further comprises a pressing unit, the upper end of the pressing unit is fixed with the inner wall of the shell 1, a reinforcing plate 3-4 is fixed at the lower end of the pressing unit, and the reinforcing plate 3-4 is connected with the inner portion of the reinforcing air bag 3-2 in a sliding mode.

The two groups of pressing units respectively comprise four groups of motors, eight groups of motors are fixed with the inner wall of the shell 1, screw rods are mounted on the eight groups of motors through couplings, nuts are rotatably mounted on the screw rods, supporting plates are fixedly mounted on the four groups of nuts in the two groups of pressing units, connecting plates are fixedly mounted at the lower ends of the supporting plates, one group of connecting plates are fixed with the extrusion plates 1-2, and the other group of connecting plates are fixed with the reinforcing plates 3-4.

The working principle of the invention is as follows:

the shell 1 is fixed on an external device, a workpiece needing to be clamped and fixed is placed in the vertical pipe 1-1, the magnetic suction plate 3-1 generates a magnetic field after being electrified, and the workpiece is magnetically sucked through the magnetic field, so that the workpiece is connected with the clamping device.

When a workpiece is adsorbed by the magnetic attraction plate 3-1, the reinforcing plate 3-4 is driven by the pressing unit to extrude non-Newtonian fluid in the reinforcing air bag 3-2, so that the non-Newtonian fluid extrudes the power-assisted plate, the power-assisted plate extrudes the reinforcing air bag 3-2 and simultaneously extends the expansion plate 3-3 outwards, the expansion of the reinforcing air bag 3-2 and the extension of the expansion plate 3-3 are limited due to the support of the workpiece on the reinforcing air bag 3-2, and when the extrusion force applied to the non-Newtonian fluid is too large, the non-Newtonian fluid becomes a solid, so that the clamping shape of the reinforcing air bag 3-2 becomes the shape of the workpiece and clamps the workpiece.

When the reinforcing component clamps a workpiece, the volumetric pump 1-5 pumps non-Newtonian fluid in the second liquid storage tank 1-4 and infuses the non-Newtonian fluid into the transmission pipe, so that the rotating gear in the transmission pipe rotates, the clamping shaft 2-2 extends into the vertical pipe 1-1 under the driving of the rotating gear and is contacted with the workpiece in the continuous extending process, the adaptive tank 2-5 deforms under the action of pressure according to the shape of the workpiece, when the adaptive tank 2-5 deforms, the non-Newtonian fluid is not extruded from the outside, when the clamping shaft 2-2 does not move any more, the two groups of pressure bearing plates 2-4 of the clamping shaft 2-2 close to the vertical pipe 1-1 contract into the contraction groove, and meanwhile, the extrusion cylinder 2-6 in the clamping shaft 2-2 pushes the non-Newtonian fluid in the clamping shaft 2-2 through the pushing plate, the non-Newtonian fluid is enabled to extrude one end of the pressure bearing plate 2-4 in rotating connection through the slide way, one end of the pressure bearing plate 2-4 moves towards the outer side of the clamping shaft 2-2, meanwhile, the non-Newtonian fluid enters the adaptation box 2-5 under the pushing of the pushing plate, due to the fact that the vertical pipe 1-1 resists the pressure bearing plate 2-4 and the workpiece resists the adaptation box 2-5, the pressure of the non-Newtonian fluid is enabled to be larger and larger, and then the non-Newtonian fluid becomes solid in the clamping shaft 2-2, and therefore the shape of the adaptation box 2-5 is fixed.

When the plurality of groups of clamping shafts 2-2 are not moving, the volumetric pump 1-5 pumps all the non-Newtonian fluid in the second liquid storage tank 1-4 to the upper part of the bearing plate 2-1, the pressing plate 1-2 continuously pumps the non-Newtonian fluid to the bearing plate 2-1 and simultaneously descends, the liquid storage tank 1-3 on the pressing plate 1-2 pumps the non-Newtonian fluid to the bearing plate 2-1 in the descending process, so that the bearing plate 2-1 is filled with the non-Newtonian fluid between each group of clamping shafts 2-2, when the lower end surface of the pressing plate 1-2 is contacted with the non-Newtonian fluid, the liquid storage tank 1-3 and the volumetric pump 1-5 stop pumping the non-Newtonian fluid, the channel is closed, and the pressing plate 1-2 continuously presses the non-Newtonian fluid, the non-Newtonian fluid is solidified, so that the position of the clamping shaft 2-2 is fixed, and the workpiece is clamped and fixed by the clamping mechanism 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device for a petroleum machinery workpiece is characterized in that: this clamping device includes shell (1), fixture (2), magnetism and inhales mechanism (3), be provided with magnetism from last to down in shell (1) and inhale mechanism (3), fixture (2) carry out fixed centre gripping to the work piece of unidimensional through non-Newtonian fluid, magnetism is inhaled mechanism (3) and is carried out the electromagnetism through magnetic field to the work piece and adsorb, and magnetism is inhaled mechanism (3) and is carried out supplementary centre gripping through non-Newtonian fluid to the work piece.

2. A clamping device for a petroleum machine workpiece, according to claim 1, characterized in that: the clamping mechanism (2) comprises a bearing plate (2-1) and a plurality of groups of clamping shafts (2-2) arranged on the bearing plate (2-1), the bearing plate (2-1) is fixed with the shell (1), the plurality of groups of clamping shafts (2-2) are rotatably connected with the bearing plate (2-1), and the plurality of groups of clamping shafts (2-2) are slidably connected with the shell (1); magnetism is inhaled mechanism (3) and is inhaled subassembly, reinforcement subassembly including magnetism, magnetism is inhaled the subassembly and is fixed with shell (1), and magnetism is inhaled the subassembly and is set up in the middle part of reinforcing the subassembly, reinforcing subassembly and shell (1) sliding connection, reinforcing subassembly provides the helping hand for fixed work piece.

3. A clamping device for a petroleum machine workpiece, according to claim 2, characterized in that: a vertical pipe (1-1) is arranged in the middle of the inner part of the shell (1); the bearing plate (2-1) is sleeved on the outer side of the vertical pipe (1-1), the clamping shafts (2-2) of a plurality of groups are connected with the vertical pipe (1-1) in a sliding mode, moving grooves (2-11) are formed in the positions, corresponding to the clamping shafts (2-2) of the plurality of groups, of the bearing plate (2-1), rotating gears are arranged at the middle positions of the moving grooves (2-11), gear racks are arranged at the lower ends of the clamping shafts (2-2) of the plurality of groups, and the gear racks are connected with the rotating gears in a rotating mode.

4. A clamping device for a petroleum machine workpiece, according to claim 3, characterized in that: the improved vertical pipe extrusion press is characterized in that an extrusion assembly is arranged on the outer side of a vertical pipe (1-1) inside the shell (1), the extrusion assembly is arranged above a bearing plate (2-1), the extrusion assembly comprises an extrusion plate (1-2) and a pressing unit, the upper end of the pressing unit is fixed with the upper end inside the shell (1), the lower end of the pressing unit is fixed with the extrusion plate (1-2), the extrusion plate (1-2) is in sliding connection with the vertical pipe (1-1), a liquid storage tank (1-3) is arranged above the extrusion plate (1-2), and the liquid storage tank (1-3) is in pipeline connection with the extrusion plate (1-2).

5. A clamping device for a petroleum machine workpiece, according to claim 4, characterized in that: a transmission assembly is arranged in the shell (1) and is positioned below the bearing plate (2-1), the transmission assembly comprises a second liquid storage tank (1-4) and at least two groups of displacement pumps (1-5), the at least two groups of displacement pumps (1-5) are connected with the second liquid storage tank (1-4) through pipelines, and the at least two groups of displacement pumps (1-5) are connected with the moving grooves (2-11) through pipelines; at least two groups of backflow holes are formed in the bearing plate (2-1) and located between every two groups of clamping shafts (2-2), a flow control assembly is arranged in each group of backflow holes, and the second liquid storage tank (1-4) is connected with the liquid storage tank (1-3) through a pipeline.

6. A clamping device for a petroleum machine workpiece, according to claim 5, characterized in that: a plurality of groups centre gripping axle (2-2) all include outer axle (2-3), be provided with four at least pressure-bearing plates (2-4) on outer axle (2-3), outer axle (2-3) inside is provided with notes type subassembly, and the one end that outer axle (2-1) and standpipe (1-1) are connected is provided with adaptation case (2-5), adaptation case (2-5) and outer axle (2-1) pipe connection, it includes extrusion cylinder (2-6) to annotate the type subassembly, be provided with the slurcam on extrusion cylinder (2-6), slurcam and outer axle (2-3) sliding connection.

7. A clamping device for a petroleum machine workpiece, according to claim 6, characterized in that: the adaptation case (2-5) is including deciding case (2-51), decide case (2-51) and outer axle (2-3) fixed, decide case (2-51) and keep away from the one end of outer axle (2-3) and be provided with a plurality of groups movable plate (2-52), a plurality of groups movable plate (2-52) all with decide case (2-51) sliding connection, a plurality of groups all sliding connection between movable plate (2-52), the one end that decides case (2-51) is kept away from to a plurality of groups movable plate (2-52) is provided with fixed plate (2-53), be provided with the reservoir in adaptation case (2-5), the reservoir is taken out (2-3) pipe connection outward.

8. A clamping device for a petroleum machine workpiece, according to claim 7, characterized in that: outer axle (2-3) are the drum structure, four at least groups pressure-bearing plate (2-4) one end is rotated with outer axle (2-3) and is connected, pressure-bearing plate (2-4) other end and outer axle (2-3) spring coupling, outer axle (2-3) are gone up and are being provided with the slide in the position of being connected with pressure-bearing plate (2-4) rotation, inside slide other end intercommunication outer axle (2-3), pressure-bearing plate (2-4) slide toward outer axle (2-3) outside through the slide.

9. A clamping device for a petroleum machine workpiece, according to claim 8, characterized in that: the magnetic suction component and the reinforcing component are both positioned at the upper end of the interior of the vertical pipe (1-1), the magnetic suction component comprises a magnetic suction plate (3-1), the magnetic suction plate (3-1) is fixed with the shell (1), and a coil is arranged in the magnetic suction plate (3-1); the reinforcing component comprises a reinforcing air bag (3-2), the upper end of the reinforcing air bag (3-2) is fixed with the magnetic suction plate (3-1), the lower end of the reinforcing air bag (3-2) is fixed with the inner wall of the vertical pipe (1-1), a plurality of groups of expansion plates (3-3) are arranged at the lower end inside the reinforcing air bag (3-2), and the plurality of groups of expansion plates (3-3) are fixed with the reinforcing air bag (3-2).

10. A clamping device for a petroleum machine workpiece, according to claim 9, characterized in that: the reinforcing component also comprises a lower press unit, the upper end of the lower press unit is fixed with the inner wall of the shell (1), the lower end of the lower press unit is provided with a reinforcing plate (3-4), and the reinforcing plate (3-4) is in sliding connection with the reinforcing air bag (3-2); the two groups of pressing units comprise at least four groups of motors, at least eight groups of motors are fixed with the inner wall of the shell (1), at least eight groups of motors are provided with screw rods, nuts are arranged on the screw rods, at least four groups of nuts in the two groups of pressing units are provided with connecting plates, one group of connecting plates are fixed with the extrusion plates (1-2), and the other group of connecting plates are fixed with the reinforcing plates (3-4).