CN113387264A - Vacuum adsorption device - Google Patents
Vacuum adsorption device Download PDFInfo
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- CN113387264A CN113387264A CN202110761522.3A CN202110761522A CN113387264A CN 113387264 A CN113387264 A CN 113387264A CN 202110761522 A CN202110761522 A CN 202110761522A CN 113387264 A CN113387264 A CN 113387264A
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 106
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 21
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000001788 irregular Effects 0.000 abstract description 16
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 7
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- 241000252254 Catostomidae Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
- B66C1/0281—Rectangular or square shape
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Abstract
The invention discloses a vacuum adsorption device, which comprises a negative pressure sucker body, wherein the negative pressure sucker body comprises a negative pressure cavity formed by enclosing a sucker and a shell, the shell comprises a negative pressure access port and a pressure relief port which are communicated with the negative pressure cavity, and the negative pressure access port is used for being externally connected with a negative pressure source; the suction plate comprises a plurality of adsorption channels communicated with the negative pressure cavity, and the adsorption channels comprise plugs, springs and connecting ports close to the negative pressure cavity; the spring is arranged at the connecting port, and the spring is used for supporting the plug to prevent the connecting port from being blocked when negative pressure is not introduced into the negative pressure cavity. The adsorption channel comprises a blocking net and an installation port close to the outer end face of the adsorption plate; the block net is arranged at the installation port, and the block net and the spring enclose the plug. The invention ensures that the contour of an irregular workpiece does not contact the position of the adsorption channel of the working surface of the sucking disc, and the adsorption channel is automatically closed and sealed, thereby avoiding air leakage and causing vacuum source waste; the adsorption channel in contact with the workpiece is normally opened.
Description
Technical Field
The application relates to the technical field of vacuum adsorption, in particular to a vacuum adsorption device.
Background
Note that the contents described in this section do not represent all the related art.
The vacuum chuck is one of vacuum equipment actuators, and workpieces are grabbed, carried or fixed through the vacuum chuck, so that the vacuum chuck is widely applied to the fields of mechanical manufacturing and assembling of buildings, papermaking, printing, glass, aviation, aerospace, ships and the like.
When the existing vacuum negative pressure sucker adsorbs and clamps a workpiece with unsmooth and smooth surface and irregular shape, a plurality of adsorption holes on the sucker cannot correspondingly contact the workpiece and are in an empty adsorption state, so that negative pressure waste of a negative pressure source is caused, in some disclosed vacuum negative pressure suckers, the adsorption holes of the sucker need to be screwed and plugged by bolts according to the appearance of the irregular workpiece, and the part which cannot be adsorbed and clamped is time-consuming and labor-consuming; but also needs to be particularly arranged when the irregular workpiece is sucked and clamped; when the irregular workpiece of the suction clamp is to be remodeled, the suction hole of the suction cup needs to be screwed down and blocked by a bolt according to the appearance of the irregular workpiece, so that the suction clamp is very troublesome and has low efficiency.
Disclosure of Invention
The invention mainly aims at the problems and provides a vacuum adsorption device, so that the contour of an irregular workpiece is not contacted with the adsorption channel of the working surface of a sucker, the adsorption channel is automatically closed and sealed, and the waste of a vacuum source caused by air leakage is avoided; the adsorption channel in contact with the workpiece is normally opened.
In order to achieve the above object, the present invention provides a vacuum adsorption apparatus comprising: the negative pressure sucker comprises a negative pressure sucker body, wherein the negative pressure sucker body comprises a negative pressure cavity formed by enclosing a sucker and a shell, the shell comprises a negative pressure access port and a pressure relief port which are communicated with the negative pressure cavity, and the negative pressure access port is used for being externally connected with a negative pressure source; the suction plate comprises a plurality of adsorption channels communicated with the negative pressure cavity, and the adsorption channels comprise plugs, springs, connection ports close to the negative pressure cavity and installation ports close to the outer end face of the suction plate; the spring is arranged at the connecting port, and the spring is used for supporting the plug to prevent the connecting port from being blocked when negative pressure is not introduced into the negative pressure cavity.
The negative pressure cavity is divided into a first negative pressure chamber and a second negative pressure chamber by the partition board, and the partition board comprises a valve for communicating the first negative pressure chamber and the second negative pressure chamber; the negative pressure inlet is communicated with the second negative pressure chamber, and the pressure relief port is communicated with the first negative pressure chamber.
Further, the adsorption channel comprises a blocking net and an installation port close to the outer end face of the adsorption plate; the blocking net is arranged at the installation port, and the blocking net and the spring enclose the plug.
Furthermore, the adsorption channel comprises a sealing gasket, the sealing gasket is close to the connecting port and is installed, and the plug abuts against the sealing gasket to seal the adsorption channel.
Further, a vacuum suction apparatus according to claim 1, wherein said housing includes a discharge port communicating with said negative pressure chamber.
Further, the valve comprises a baffle valve core and an operating rod; the operating rod is connected with the baffle valve core and extends out of the outer wall of the shell to control the valve to be opened and closed.
Further, the plug is a sphere or a cone.
Further, the suction plate comprises a mounting groove for mounting a sealing strip and/or a non-slip mat, and the mounting groove separates two adjacent adsorption channels.
Further, the outer wall of the negative pressure sucker body is provided with a clamping groove.
Furthermore, the negative pressure cavity comprises a return spring and a limiting plunger; the baffle plate is arranged in the negative pressure cavity and can move relative to the suction plate, the limiting plunger is arranged on the side wall of the negative pressure cavity to limit the baffle plate to move, and the return spring is arranged in the second negative pressure chamber and is connected with the baffle plate; the valve comprises a plug, a spring and a connecting port close to the second negative pressure chamber; the spring is arranged at the connecting port, and the spring is used for supporting the plug to prevent the connecting port from being blocked when negative pressure is not introduced into the negative pressure cavity.
Compared with the prior art, the vacuum adsorption device provided by the invention can be in a working state in the adsorption channel which is in contact with the inner part of the irregular workpiece shape outline, and the adsorption channel outside the outline is in an automatic closing state, so that the function of adsorbing and assembling workpieces with outlines of any shapes is achieved. Therefore, the negative pressure system is prevented from leaking air to influence the vacuum degree, and the adsorption channel in the outline of the workpiece works normally. By dividing the negative pressure cavity into two cavities, the efficiency of quick suction and clamping when the vacuum negative pressure sucker equipment exchanges workpieces is improved, and a negative pressure source does not need to be opened and closed repeatedly; the vacuum negative pressure sucker has the advantages that the sealing strips and/or the anti-slip pads are selectively mounted on the mounting grooves on the outer end face of the suction plate, so that the effect of firm suction and clamping is improved, workpieces can be stably, firmly and reliably lifted by the suction clamp of the negative pressure sucker, stable suction and holding of various special-shaped surface objects are realized, the vacuum negative pressure sucker does not need to specially customize suckers with corresponding shapes according to a single special-shaped surface, and the production cost is greatly reduced.
Drawings
Fig. 1 is an exploded view of a vacuum adsorption device according to the present application.
Fig. 2 is a schematic cross-sectional view of a vacuum adsorption apparatus according to the present application.
Fig. 3 is a schematic cross-sectional view of a vacuum adsorption apparatus according to the present application.
Fig. 4 is a partially enlarged schematic view of a vacuum adsorption apparatus according to the present application.
Fig. 5 is a partially enlarged schematic view of a vacuum adsorption apparatus according to the present application.
Fig. 6 is a partially enlarged schematic view of a vacuum adsorption apparatus according to the present application.
Fig. 7 is a partially enlarged schematic view of a vacuum adsorption device according to the present application.
Fig. 8 is a schematic structural diagram of a suction plate of a vacuum adsorption device according to the present application.
Fig. 9 is a schematic structural diagram of a suction plate of a vacuum adsorption device according to the present application.
Fig. 10 is a schematic view of a suction plate structure of a vacuum adsorption apparatus according to the present application.
Fig. 11 is a schematic diagram of a partition structure of a vacuum adsorption apparatus according to the present application.
Fig. 12 is a schematic diagram of a partition structure of a vacuum adsorption apparatus according to the present application.
Fig. 13 is a schematic structural diagram of a vacuum adsorption device according to the present application.
Fig. 14 is a partially enlarged view of fig. 13.
Reference numerals shown in the drawings: 1. a negative pressure suction cup body; 110. clamping the groove; 2. sucking a plate; 210. an adsorption channel; 211. a plug; 212. a spring; 213. a connection port; 214. installing a port; 215. blocking; 216. a gasket; 217. an accommodating section; 220. mounting grooves; 221. a sealing strip; 222. a non-slip mat; 3. a housing; 4. a negative pressure chamber; 410. a first negative pressure chamber; 420. a second negative pressure chamber; 430. a return spring; 440. a limiting plunger; 5. a negative pressure inlet; 6. a pressure relief port; 7. a partition plate; 710. a valve; 711. a flap valve core; 712. an operating lever; 8. a discharge outlet; 9. a negative pressure gauge; 10. and (4) bolts.
Detailed Description
The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 14, the present embodiment provides a vacuum adsorption device, including a negative pressure chuck body 1, where the negative pressure chuck body 1 includes a negative pressure cavity 4 formed by enclosing a suction plate 2 and a casing 3, the casing 3 includes a negative pressure inlet 5 and a pressure relief inlet 6 communicated with the negative pressure cavity 4, and the negative pressure inlet 5 is used for externally connecting a negative pressure source; the suction plate 2 comprises a plurality of suction channels 210 communicated with the negative pressure cavity 4, and the suction channels 210 comprise plugs 211, springs 212 and connecting ports 213 adjacent to the negative pressure cavity 4; the spring 212 is attached to the connection port 213, and the spring 212 supports the stopper 211 to prevent the connection port 213 from being clogged when the negative pressure is not applied to the negative pressure chamber 4.
When the vacuum adsorption device is used, a workpiece to be sucked and clamped is abutted and contacted with the suction plate 2, then a negative pressure source device (not shown) is started to pump out air in the negative pressure cavity 4 through the negative pressure access port 5, the volume of air in the negative pressure cavity 4 is changed, so that the pressure difference between the inside of the negative pressure cavity 4 and the outside atmospheric pressure is changed, a negative pressure difference is formed in the adsorption channel 210 communicated with the negative pressure cavity 4, so that the suction plate 2 sucks the workpiece firmly. The pressure relief port 6 arranged on the shell 3 is provided with a pressure relief valve (not shown), when the negative pressure sucker body 1 is required to relieve the adsorption clamping of the workpiece, the pressure relief valve of the pressure relief port 6 is opened, the negative pressure cavity 4 is communicated with the external atmosphere, the atmospheric pressure balance is recovered, the adsorption channel 210 loses the suction force on the workpiece, the adsorbed workpiece is separated from the adsorption plate 2, and the workpiece can be quickly unloaded.
When the existing vacuum negative pressure sucker adsorbs and clamps a workpiece with unsmooth and smooth surface and irregular shape, a plurality of adsorption holes on the sucker cannot correspondingly contact the workpiece and are in an empty adsorption state, so that negative pressure waste of a negative pressure source is caused, in some disclosed vacuum negative pressure suckers, the adsorption holes of the sucker need to be screwed and plugged by bolts according to the appearance of the irregular workpiece, and the part which cannot be adsorbed and clamped is time-consuming and labor-consuming; but also needs to be particularly arranged when the irregular workpiece is sucked and clamped; when the irregular workpiece of the suction clamp is to be remodeled, the suction hole of the suction cup needs to be screwed down and blocked by a bolt according to the appearance of the irregular workpiece, so that the suction clamp is very troublesome and has low efficiency.
Therefore, the vacuum adsorption device aims at the pain points, and a plug 211 and a spring 212 structure are arranged in the adsorption channel 210; when the vacuum adsorption device is used, the spring 212 has the following states: firstly, when negative pressure is not introduced: the outer end face of the suction plate 2 faces downwards, and the plug 211 connected with the spring 212 drives the spring 212 to generate gravity elongation; the spring 212 and the plug 211 have no connection relationship, and the spring 212 is in a natural state and is slightly deformed and elongated under the action of self weight. The outer end face of the suction plate 2 faces upward, the plug 211 is pressed by gravity to the spring 212, and the spring 212 supports the plug 211 according to the selected elastic modulus to prevent the plug 211 from easily blocking the connection port 213 and further blocking the suction channel 210. Secondly, when negative pressure is introduced: the outer end face of the suction plate 2 faces downwards, and the plug 211 moves towards the negative pressure cavity 4 under the action of negative pressure, so that the spring 212 is compressed; the outer end surface of the suction plate 2 faces upwards, and the plug 211 moves towards the negative pressure cavity 4 under the action of negative pressure, so that the spring 212 is compressed; when the work piece is not absorbed, the plug 211 is acted by the negative pressure flow to block the connecting port 213, when the work piece is absorbed, the negative pressure acts on the work piece to tightly absorb the work piece and the absorbing plate 2, and the plug 211 can not block the connecting port 213. And thirdly, when the negative pressure is removed, because of the elastic modulus and the elastic action of the spring 212, the spring 212 is used for applying a pushing force to the plug 211 to be separated from the connecting port 213, the state that the plug 211 blocks the adsorption channel 210 is automatically removed, and the normally open long-pass state is kept, so that the negative pressure is convenient to work and use next time. The design enables the negative pressure sucker body 1 to be provided with a small valve which can automatically open and close the adsorption channel 210 according to whether a workpiece is contacted with the suction plate 2 or not.
Specifically, since the plug 211 is spaced apart from the connection port 213 and the spring 212 pushes the plug 211 to prevent the connection port 213 from being clogged, the plug 211 is not immediately sucked to the connection port 213 by the distance when the object is sucked, and the object can be firmly sucked first. Due to the design, when the vacuum adsorption device adsorbs workpieces with irregular shapes, the adsorption channel 210 which is not in contact with the workpieces does not need to be additionally debugged, the plug 211 automatically abuts against and blocks the connecting port 213, a negative pressure source is saved, air leakage and negative pressure waste in the negative pressure cavity 4 are avoided, and the adsorption force of the adsorption channel 210 which is in contact with the workpieces on the workpieces is increased. In short, the spring 212 keeps the suction channel 210 normally open against the plug 211, and when the suction channel 210 is empty and the negative pressure suction force is large, the plug 211 compresses the spring 212 to block the suction channel 210. Each adsorption channel 210 works independently without affecting each other.
Preferably, the connection port 213, the accommodating section 217 for accommodating the plug 211, and the mounting port 214 constituting the suction channel 210 are stepped holes with gradually enlarged apertures, the accommodating section 217 is located between the connection port 213 and the mounting port 214, the aperture of the connection port 213 is smaller than that of the plug 211, so as to prevent the plug 211 from receiving negative pressure suction force and entering the negative pressure chamber 4, and the plug 211 can move between the accommodating section 217 and the mounting port 214, so that the spring 212 and the plug 211 can be conveniently placed into the connection port 213 and the accommodating section 217 from the mounting port 214 during assembly production. The structure is reasonable, and the assembly, processing and manufacturing are simple.
Preferably, the adsorption channels 210 on the adsorption plate 2 are arranged in a dot matrix.
Referring to fig. 1-3 and 11-12, the vacuum cleaner includes a partition 7, the partition 7 is disposed in the negative pressure chamber 4 to divide the negative pressure chamber 4 into a first negative pressure chamber 410 and a second negative pressure chamber 420, and the partition 7 includes a valve 710 for communicating the first negative pressure chamber 410 and the second negative pressure chamber 420; the negative pressure inlet 5 is communicated with the second negative pressure chamber 420, and the pressure relief port 6 is communicated with the first negative pressure chamber 410. The valve 710 is a communication switch between the first negative pressure chamber 410 and the second negative pressure chamber 420; when the negative pressure sucker body 1 is used for sucking a workpiece, the switch of the valve 710 on the partition plate 7 is controlled to be opened, the first negative pressure chamber 410 and the second negative pressure chamber 420 are communicated, the negative pressure source equipment extracts air in the first negative pressure chamber 410 and the second negative pressure chamber 420 through the negative pressure access port 5, the air volume in the first negative pressure chamber 410 and the second negative pressure chamber 420 is changed, the pressure difference between the inside of the first negative pressure chamber 410 and the second negative pressure chamber 420 and the outside atmosphere is changed, the negative pressure difference is formed in the sucking channel 210 communicated with the first negative pressure chamber 410 and the second negative pressure chamber 420, articles are sucked and clamped, and the sucking plate 2 firmly sucks the workpiece.
When the negative pressure suction cup body 1 is required to release the adsorption clamping of the workpiece, the switch of the control valve 710 is closed, and the communication between the first negative pressure chamber 410 and the second negative pressure chamber 420 is blocked, because the first negative pressure chamber 410 is communicated with the adsorption channel 210, the adsorption channel 210 does not acquire the negative pressure from the negative pressure source equipment with the negative pressure inlet 5 and the second negative pressure chamber 420, so that the adsorption channel 210 loses the vacuum suction force on the workpiece, and the adsorbed workpiece is separated from the suction plate 2. Further, the residual negative pressure in the first negative pressure chamber 410 at this time opens the relief valve of the relief port 6, and the first negative pressure chamber 410 is communicated with the outside atmosphere to restore atmospheric pressure balance, so that the adsorption channel 210 loses the suction force to the workpiece, and the adsorbed workpiece is separated from the adsorption plate 2, so that the workpiece can be unloaded more quickly.
Because with negative pressure source equipment second negative pressure chamber 420 intercommunication, produce the negative pressure and not shut down, close the relief valve of pressure release mouth 6 this moment, control valve 710 switch is opened, first negative pressure chamber 410 communicates with second negative pressure chamber 420 once more, and absorption passageway 210 can have negative pressure suction rapidly, inhales once more and presss from both sides the work piece, and this kind of design has greatly improved vacuum negative pressure sucking disc equipment when changing the work piece, inhales fast and presss from both sides the efficiency, need not to open and close the negative pressure source repeatedly, improves and uses experience.
Each adsorption port of the existing negative pressure sucker is connected with one negative pressure generating pipeline independently, when the area of a workpiece needing to be fixed or conveyed by the sucker is too large, the area of the negative pressure sucker needs to be large, and due to the fact that each adsorption port is connected with one negative pressure pipeline independently, due to the limitation of the situation, pipelines generating negative pressure are numerous, a plurality of negative pressure pipelines cannot be additionally arranged at each adsorption port, negative pressure suction force is limited, and the large-size sucker cannot be manufactured in a feasible mode.
The negative pressure cavity 4 is divided into two parts by the partition board 7, the second negative pressure chamber 420 is equivalent to a negative pressure enhancing chamber, and the negative pressure sucking disc body 1 can absorb articles without a plurality of negative pressure access ports 5, so that the pain point is avoided. Preferably, the number of the valves 710 on the partition 7 can be customized to one or more according to the specification of the vacuum chuck body 1, and when the size of the vacuum chuck body 1 is larger, the number of the valves 710 is designed to be larger, and the valves 710 are arranged corresponding to the position of the adsorption channel 210.
The vacuum suction device simplifies the structure of the traditional suction cup, avoids the need of connecting the suction holes with a plurality of negative pressure air pipes, has more reasonable design, and ensures that the maintenance of the negative pressure suction cup is simpler; the vacuum negative pressure sucker has the advantages that the vacuum negative pressure sucker can respond quickly, the period of clamping different workpieces is shortened, the working efficiency is high, the manufacturing size of the vacuum negative pressure sucker is not limited, and articles with larger sizes can be adsorbed. One vacuum pump can be used by a plurality of suckers, and the purpose of energy conservation is achieved.
Preferably, the valve 710 is an electric valve, so that the labor intensity of opening and closing operation of a user is reduced; optionally, the valve 710 may also be a manual valve, which saves power resources and manufacturing cost.
Referring to fig. 4-6, the suction passage 210 includes a barrier net 215, and a mounting port 214 adjacent to the outer end surface of the suction plate 2; a barrier 215 is disposed at the mounting port 214, the barrier 215 and the spring 212 enclosing the plug 211. In some embodiments, the spring 212 is fixedly connected to the plug 211, and in the non-working free state, the position of the spring 212 relative to the plug 211 is fixed, and when the outer end of the suction plate 2 of the vacuum chuck body 1 faces downward, the barrier net 215 is not present, and the plug 211 can also be kept from falling off the vacuum chuck body 1. In another embodiment, the spring 212 and the plug 211 are in a non-connected state, and the plug 211 can be kept not to be separated from the vacuum chuck body 1 and fall off due to the limitation of the barrier net 215 when the suction channel 210 of the vacuum chuck body 1 faces downward. The barrier net 215 can prevent the plug 211 from separating from the adsorption channel 210, and can prevent impurities from being sucked into the negative pressure cavity 4 to cause pollution without affecting the ventilation of the adsorption channel 210. Reasonable in design, the practicality is strong, is worth promoting.
Referring to fig. 2-5, the suction channel 210 includes a sealing pad 216 therein, the sealing pad 216 is installed near the connection port 213, and the plug 211 and the sealing pad 216 are pressed against and seal the suction channel 210. Preferably, the sealing pad 216 is made of rubber, when the vacuum adsorption device adsorbs an irregularly-shaped workpiece, the plug 211 in the adsorption channel 210, which is not in contact with the workpiece, automatically presses against the blocking connection port 213, and the sealing pad 216 enhances the effect of blocking the sealed adsorption channel 210, so that the negative pressure cavity 4 is prevented from being communicated with the outside and leaking air, a negative pressure source is further saved, and negative pressure waste in the negative pressure cavity 4 is avoided.
Referring to fig. 2 and 3, the housing 3 includes a discharge opening 8 communicating with the negative pressure chamber 4. The discharge port 8 is provided with a switch valve (not shown), and after the negative pressure cavity 4 enters water liquid, oil liquid, debris and impurities and other substances, the water liquid, the oil liquid, the debris and the impurities can be discharged by utilizing the discharge port 8, so that the cleanliness in the negative pressure cavity 4 is improved, and the service life of the vacuum adsorption device is prolonged.
Referring to fig. 1, 11-12, the valve 710 includes a flapper valve core 711 and an operating rod 712; the operating rod 712 is connected with the flap valve core 711 and extends out of the outer wall of the shell 3 to control the valve 710 to open and close. The flap valve core 711 opens and closes the valve 710 by manually rotating the operation rod 712 by a user, and communicates or closes the first negative pressure chamber 410 and the second negative pressure chamber 420.
Referring to fig. 4 and 5, the plug 211 is a sphere or a cone. However, the shape of the plug 211 is not limited to this, and the plug 211 may have a shape capable of blocking the connection port 213, such as an ellipsoid, a semi-circular body, or a truncated cone. Preferably, the cross sections of the suction channel 210 and the plug 211 are circular, so that the design is convenient for drilling and manufacturing of the drill, and the plug 211 moves smoothly in the hole of the suction channel 210.
Referring to fig. 7, and fig. 8-10, the suction plate 2 includes a mounting groove 220 for mounting a sealing strip 221 and/or a non-slip mat 222, and the mounting groove 220 separates two adjacent suction channels 210. The mounting groove 220 arranged on the outer end face of the suction plate 2 is used for selectively mounting the sealing strip 221 and/or the anti-slip pad 222, when the sealing strip 221 contacts an object with a rough surface or an irregular curved surface or a spherical surface, the sealing strip can contract and deform according to the shape of the object, has a tightening effect, and is combined with a soft sealing strip 221 base body, so that the surface of the suction plate 2 is flexible, the rough surface is sealed, the vacuum suction device is more tightly attached to an adsorbed workpiece product, the suction force is ensured, and the workpiece product cannot easily fall off; when slipmat 222 contacts by the adsorbed object, coarse or soft structure can strengthen with the object contact degree, frictional force, when making the work piece product adsorbed on this vacuum adsorption device, prevent that the side direction atress from sliding, it presss from both sides efficiency to have increased to inhale, it is more reliable and more stable to enable sucking of negative pressure suction cup press from both sides the handling work piece, realized holding to the stability of all kinds of dysmorphism surface objects, make vacuum negative pressure suction cup no longer need according to the sucking disc of the special corresponding shape of single dysmorphism surface customization specially, greatly reduced manufacturing cost, overall work stability is high, therefore, the clothes hanger is strong in practicability, wide in application range, and great industrial value.
Referring to fig. 1 and 8, a clamping groove 110 is formed on an outer wall of the vacuum chuck body 1. The clamping groove 110 is used for accommodating a pressure plate (not shown), and the pressure plate is screwed down by screws to fix the negative pressure sucker body 1 on a machine tool, so that the negative pressure sucker is more stable. Make this negative pressure suction cup body 1 can be used for as arm activity hoist and mount work piece, can regard as convenient clamping platform again, and the processing of pressing from both sides work piece is inhaled in a flexible way, and the clamping work piece that directly needs waste time and energy with dovetail, clamp plate, bolt with traditional lathe compares, and this negative pressure suction cup body 1 is higher to the clamping flexibility ratio of work piece, and is more swift.
Referring to fig. 1-3 and 13-14, the negative pressure chamber 4 includes a return spring 430 and a limiting plunger 440; the partition plate 7 is arranged in the negative pressure cavity 4 and can move relative to the suction plate 2, the limiting plunger 440 is arranged on the side wall of the negative pressure cavity 4 to limit the partition plate 7 to move, and the return spring 430 is arranged in the second negative pressure chamber 420 and is connected with the partition plate 7; the valve 710 includes a plug 211, a spring 212, and a connection port 213 adjacent to the second sub-pressure chamber 420; the spring 212 is attached to the connection port 213, and the spring 212 supports the stopper 211 to prevent the connection port 213 from being clogged when the negative pressure is not applied to the negative pressure chamber 4.
The working principle of the embodiment is as follows: when the negative pressure cavity 4 is connected with negative pressure through the negative pressure connecting port 5, the second negative pressure chamber 420 generates suction to the partition plate 7, the plug 211 in the valve 710 compresses the spring 212 by the negative pressure suction to plug the connecting port 213, so that the valve 710 is in a closed state, and the communication between the first negative pressure chamber 410 and the second negative pressure chamber 420 is blocked; when the negative pressure suction force continuously increases to reach a certain intensity, because the negative pressure inlet 5 is positioned in the second negative pressure chamber 420, the partition plate 7 moves in the negative pressure cavity 4 towards the direction close to the negative pressure inlet 5, namely away from the suction plate 2, and the partition plate 7 is blocked by the limiting plunger 440 in the moving process, the moving power of the partition plate 7 exceeds the preset elastic modulus of the limiting plunger 440, the limiting plunger 440 is extruded back into the side wall of the negative pressure chamber 4 by the partition plate 7, the partition plate 7 continuously moves, after the limiting plunger 440 is crossed, the limiting plunger 440 stretches out from the side wall of the negative pressure chamber 4 again, and the partition plate 7 compresses the return spring 430 positioned in the second negative pressure chamber 420; the partition board 7 moves to the first negative pressure chamber 410 and the second negative pressure chamber 420, the pressure is approximately equal to the pressure, and the partition board stops moving, in the process, the volume of the gas in the first negative pressure chamber 410 changes, negative pressure suction force is generated, the suction board 2 generates suction force to the outside through the suction channel 210, the plug 211, the spring 212 and the connecting port 213 in the suction channel 210 receive the negative pressure suction force, and the reaction and the action in the above are generated: the adsorption channel 210 of the working surface of the negative pressure sucker, which is not contacted with the workpiece, is automatically closed, air leakage is prevented, and the adsorption channel 210 contacted with the workpiece generates an adsorption effect on the workpiece. At this time, the negative pressures of the first negative pressure chamber 410 and the second negative pressure chamber 420 at the two ends of the partition plate 7 are balanced, the valve 710 on the partition plate 7 pushes the plug 211 away from the connection port 213 under the thrust action of the spring 212, so that the valve 710 is in an open state, the first negative pressure chamber 410 is communicated with the second negative pressure chamber 420, the partition plate 7 starts to move in the direction close to the suction plate 2 under the predetermined thrust action of the return spring 430, overcomes the resistance of the limit plunger 440, passes over the limit plunger 440, and is reset to the position before operation. When the workpiece needs to be removed from the adsorption device, the pressure release valve of the pressure release port 6 is opened to communicate the first negative pressure chamber 410 with the outside, and the adsorption channel 210 loses the adsorption force to remove the workpiece. When the pressure is released, the air pressure of the first negative pressure chamber 410 is higher than that of the second negative pressure chamber 420, so that the valve 710 on the partition plate 7 is forced to be closed, and the negative pressure storage in the second negative pressure chamber 420 can be preserved, so that the workpiece can be sucked and clamped next time. The automatic switch has the advantages of ingenious and reasonable design, strong practicability, no need of additionally providing energy, realization of the automatic switch of the sucking disc to adsorb the cavity channel, and convenience in popularization and use.
Referring to fig. 1 and 3, preferably, the vacuum chuck body 1 includes a negative pressure gauge 9 for measuring the negative pressure of the negative pressure chamber 4. The negative pressure gauge 9 is used for indicating the air pressure parameter in the negative pressure cavity 4, so that the negative pressure source can be conveniently and auxiliarily regulated and controlled, and the safety production can be carried out.
Referring to fig. 1, preferably, the housing 3, the partition 7 and the suction plate 2 are integrally screwed to the vacuum chuck body 1 by bolts 10.
The vacuum adsorption device realizes the following main functions: the adsorption channel 210 which is contacted with the irregular workpiece in the inner part of the shape outline is in a working state, and the adsorption channel 210 outside the outline is in an automatic closing state, so that the function of adsorbing and assembling workpieces with any shape outline is achieved. Therefore, the negative pressure system is prevented from leaking air to influence the vacuum degree, and the adsorption channel 210 in the workpiece contour works normally. By dividing the negative pressure cavity 4 into two cavities, the efficiency of quick suction and clamping when the vacuum negative pressure sucker equipment exchanges workpieces is improved, and a negative pressure source does not need to be opened and closed repeatedly; the mounting grooves 220 on the outer end face of the suction plate 2 are selectively provided with the sealing strips 221 and/or the anti-slip pads 222, so that the effect of firm suction and clamping is increased, the suction and clamping lifting of workpieces by the negative pressure sucker can be more stable, firm and reliable, the stable suction and clamping of various special-shaped surface objects are realized, the vacuum negative pressure sucker does not need to specially customize suckers with corresponding shapes according to a single special-shaped surface, and the production cost is greatly reduced.
The present invention is not limited to the above embodiments, and any embodiments mentioned in the description fall within the scope of the present invention.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A vacuum adsorption device is characterized by comprising a negative pressure sucker body, wherein the negative pressure sucker body comprises a negative pressure cavity formed by enclosing a sucker and a shell, the shell comprises a negative pressure access port and a pressure relief port which are communicated with the negative pressure cavity, and the negative pressure access port is used for being externally connected with a negative pressure source; the suction plate comprises a plurality of adsorption channels communicated with the negative pressure cavity, and the adsorption channels comprise plugs, springs and connecting ports close to the negative pressure cavity; the spring is arranged at the connecting port, and the spring is used for supporting the plug to prevent the connecting port from being blocked when negative pressure is not introduced into the negative pressure cavity.
2. The vacuum adsorption device according to claim 1, comprising a partition plate, wherein the partition plate is arranged in the negative pressure cavity to divide the negative pressure cavity into a first negative pressure chamber and a second negative pressure chamber, and the partition plate comprises a valve for communicating the first negative pressure chamber and the second negative pressure chamber; the negative pressure inlet is communicated with the second negative pressure chamber, and the pressure relief port is communicated with the first negative pressure chamber.
3. A vacuum suction device according to claim 1, wherein the suction channel includes a barrier net therein, and mounting ports adjacent to the outer end face of the suction plate; the blocking net is arranged at the installation port, and the blocking net and the spring enclose the plug.
4. The vacuum adsorption device of claim 1, wherein the adsorption channel comprises a sealing gasket, the sealing gasket is installed close to the connection port, and the plug and the sealing gasket are pressed to close the adsorption channel.
5. A vacuum suction device according to claim 1, wherein the housing includes a discharge port communicating with the negative pressure chamber.
6. The vacuum adsorption device of claim 2, wherein the valve comprises a flap valve core and an operating rod; the operating rod is connected with the baffle valve core and extends out of the outer wall of the shell to control the valve to be opened and closed.
7. The vacuum adsorption device of claim 1, wherein the plug is a sphere or a cone.
8. The vacuum adsorption device of claim 1, wherein the suction plate comprises an installation groove for installing a sealing strip and/or a non-slip mat, and the installation groove separates two adjacent adsorption channels.
9. The vacuum adsorption device of claim 1, wherein the outer wall of the vacuum chuck body is provided with a clamping groove.
10. The vacuum adsorption device of claim 2, wherein the negative pressure chamber comprises a return spring and a limiting plunger; the baffle plate is arranged in the negative pressure cavity and can move relative to the suction plate, the limiting plunger is arranged on the side wall of the negative pressure cavity to limit the baffle plate to move, and the return spring is arranged in the second negative pressure chamber and is connected with the baffle plate; the valve comprises a plug, a spring and a connecting port close to the second negative pressure chamber; the spring is arranged at the connecting port, and the spring is used for supporting the plug to prevent the connecting port from being blocked when negative pressure is not introduced into the negative pressure cavity.
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| CN115258886A (en) * | 2022-08-22 | 2022-11-01 | 上海华美电梯装饰有限公司 | Mounting plate for elevator and production process thereof |
| CN115623350A (en) * | 2022-11-22 | 2023-01-17 | 深圳市米尔电子有限公司 | Intelligent wireless routing assembly |
| CN115847151A (en) * | 2022-12-06 | 2023-03-28 | 深圳市忠盛精密科技有限公司 | Porous vacuum chuck |
| CN116277106A (en) * | 2023-05-23 | 2023-06-23 | 扬州棒杰新能源科技有限公司 | Lifting self-tightening mechanical arm |
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| CN115623350A (en) * | 2022-11-22 | 2023-01-17 | 深圳市米尔电子有限公司 | Intelligent wireless routing assembly |
| CN115847151A (en) * | 2022-12-06 | 2023-03-28 | 深圳市忠盛精密科技有限公司 | Porous vacuum chuck |
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| CN116277106B (en) * | 2023-05-23 | 2023-08-04 | 扬州棒杰新能源科技有限公司 | Lifting self-tightening mechanical arm |
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