CN217437113U - Negative pressure sucker device for nonmagnetic flat plate workpiece - Google Patents

Abstract

The utility model discloses a dull and stereotyped work piece negative pressure suction cup device of no magnetism, it is including the main cavity body, roof and panel, the internal constant pressure chamber that is linked together with evacuation equipment that has seted up of main cavity, the roof is fixed in the top of the main cavity body, the roof covers the constant pressure chamber, and seted up a plurality of roof gas pockets on the roof, panel detachably is fixed in the top of roof, the top of panel is equipped with elastic glue layer and the two integrative injection moulding, a plurality of panel gas pockets have been seted up on the panel, be formed with a plurality of absorption gas pockets on the elastic glue layer, adsorb the gas pocket, panel gas pocket and roof gas pocket align the setting in proper order. The utility model has the characteristics of easy to assemble and change panel can improve work efficiency, can reduce energy consumption etc.

Description

Negative pressure sucker device for nonmagnetic flat plate workpiece

Technical Field

The utility model relates to a suction disc device especially relates to a dull and stereotyped work piece negative pressure suction disc device of no magnetism.

Background

Traditional vacuum chuck device is with the absorption face direct switch-on negative pressure, adsorb the work piece in the contact surface of sucking disc under the negative pressure effect, general sucking disc surface is the square check, the square subsides of appearance shape according to the product at the sucking disc again are less than the similar sealing strip of product shape, receive the influence of vacuum chuck square, can not expand the adsorption zone at will, can only enclose according to the square regional setting and keep off the sealing strip, enclose the junction department of keeping off the sealing strip and reveal the negative pressure easily, not only lead to the energy consumption big, and the vacuum conversion rate is very low, the product adsorption affinity is not enough, it will enclose the sealing strip according to the product again to change the product at every turn newly, the course of work is loaded down with trivial details, the installation time of changing new product at every turn is long.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provides an easy to assemble and change panel, can improve work efficiency, can reduce the dull and stereotyped work piece negative sucker device of no magnetism of energy consumption.

In order to solve the technical problem, the utility model adopts the following technical scheme.

The utility model provides a dull and stereotyped work piece negative pressure suction cup device of no magnetism, its is including the main cavity body, roof and panel, the internal constant pressure chamber that is linked together with evacuation equipment that has seted up of main cavity, the roof is fixed in the top of the main cavity body, the roof covers the constant pressure chamber, just a plurality of roof gas pockets have been seted up on the roof, panel detachably is fixed in the top of roof, the top of panel is equipped with elastic adhesive layer and the two integrated injection moulding, a plurality of panel gas pockets have been seted up on the panel, be formed with a plurality of absorption gas pockets on the elastic adhesive layer, absorb the gas pocket the panel gas pocket with the roof gas pocket aligns the setting in proper order.

Preferably, a hand slide valve is fixed on the outer side of the main cavity and communicated between the vacuum pumping device and the constant pressure cavity.

Preferably, a negative pressure gauge is fixed on the outer side of the main cavity, and an induction end of the negative pressure gauge is communicated with the constant pressure cavity.

Preferably, a sealing ring groove is formed in the edge of the top of the main cavity, a sealing ring is arranged in the sealing ring groove, and the sealing ring is clamped between the main cavity and the top plate.

Preferably, a plurality of top plate air holes are distributed on the top plate in an array mode, a plurality of panel air holes are distributed on the panel in an array mode, and a plurality of adsorption air holes are distributed on the elastic adhesive layer in an array mode.

Preferably, the main cavity is cuboid, and the top plate and the panel are rectangular plates.

Preferably, the left side and the right side of the main cavity are respectively provided with an installation groove.

Preferably, the elastic glue layer is an epoxy glue layer, and the panel is an aluminum alloy plate.

The utility model discloses a non-magnetic flat plate workpiece negative pressure suction disc device, wherein the panel, the main cavity body and the top plate are fixedly connected from top to bottom in sequence to form the basic structure of the suction disc device, on the basis, the top of the panel is provided with an elastic glue layer and the two are integrated into a whole injection molding structure, when the workpiece is placed on the top surface of the elastic glue layer, the contact position of the adsorption air hole and the workpiece can be sealed based on the elasticity of the elastic glue layer, and the excellent anti-skid effect can be obtained, meanwhile, the panel is detachably fixed on the top of the top plate, once the elastic glue layer is scratched, the panel can be quickly taken down and replaced, compared with the mode of replacing a sealing ring in the prior art, the utility model greatly facilitates the installation and replacement work, and can obviously improve the work efficiency, meanwhile, the air source consumption caused by time-consuming maintenance and replacement can be avoided, the application requirements are better met, and the application requirements are better met.

Drawings

FIG. 1 is a perspective view of a suction cup device;

FIG. 2 is a view showing the structure of the negative pressure suction cup device when the elastic adhesive layer is removed;

FIG. 3 is an exploded view of the suction cup device;

FIG. 4 is an enlarged view of a portion of the panel and the elastomeric layer;

FIG. 5 is an enlarged partial view of the top plate and sealing grid;

FIG. 6 is an enlarged partial view of the differential pressure valve, the liner plate and the main chamber;

fig. 7 is an exploded view of the differential pressure valve.

Detailed Description

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Example one

This embodiment has proposed a dull and stereotyped work piece negative pressure sucking disc device of no magnetism, combines fig. 1 to fig. 4 to show, and it is including the main cavity body 1, roof 2 and panel 3, set up the constant pressure chamber 10 that is linked together with evacuation equipment in the main cavity body 1, roof 2 is fixed in the top of the main cavity body 1, roof 2 covers constant pressure chamber 10, just a plurality of roof gas pockets 20 have been seted up on roof 2, 3 detachably of panel are fixed in the top of roof 2, the top of panel 3 is equipped with elastic glue layer 4 and the two integrated injection moulding, a plurality of panel gas pockets 30 have been seted up on the panel 3, be formed with a plurality of absorption gas pockets 40 on the elastic glue layer 4, absorb gas pocket 40 panel gas pocket 30 with roof gas pocket 20 aligns the setting in proper order.

In the above structure, the panel 3, the main cavity 1 and the top plate 2 are fixedly connected from top to bottom in sequence to form a basic structure of the sucker device, on the basis, the top of the panel 3 is provided with the elastic glue layer 4, and the two are integrally formed by injection molding, when a workpiece is placed on the top of the elastic glue layer 4, the contact position of the adsorption air hole 40 and the workpiece can be sealed based on the elasticity of the elastic glue layer 4, and an excellent anti-skid effect can be obtained, meanwhile, once the elastic glue layer 4 is scratched, the panel 3 can be quickly and integrally taken down for replacement, compared with the sealing ring replacement mode in the prior art, the utility model greatly facilitates the installation and replacement work, and can obviously improve the working efficiency, meanwhile, the air source consumption caused by time-consuming maintenance and replacement can be avoided, and the application requirements are better met.

Referring to fig. 4, the panel 3 and the elastic adhesive layer 4 are integrally injection-molded, further, a plurality of panel protrusions 31 protruding upward are formed on the top surface of the panel 3, a plurality of adhesive layer injection holes 41 are formed on the elastic adhesive layer 4 at positions corresponding to the panel protrusions 31 in the process of injection-molding the panel 3 and the elastic adhesive layer 4, and based on the matching relationship between the adhesive layer injection holes 41 and the panel protrusions 31, the panel 3 and the elastic adhesive layer 4 form a complete and high-performance anti-slip sealing panel structure. Further, elasticity glue film 4 is the epoxy glue film, panel 3 is aluminum alloy plate, and this kind of structure with epoxy glue film and the integrative injection moulding of aluminum alloy plate has not only increased frictional force, has still greatly guaranteed the gas tightness simultaneously.

In order to control the negative pressure state in the constant pressure chamber 10 conveniently, in this embodiment, a hand slide valve 11 is fixed on the outer side of the main chamber 1, and the hand slide valve 11 is communicated between the vacuum pumping device and the constant pressure chamber 10. Correspondingly, a negative pressure gauge 12 is fixed on the outer side of the main cavity 1, and the sensing end of the negative pressure gauge 12 is communicated with the constant pressure cavity 10.

In order to ensure reliable sealing between the main cavity 1 and the top plate 2, in this embodiment, a seal ring groove 13 is formed in the top edge of the main cavity 1, a seal ring 14 is arranged in the seal ring groove 13, and the seal ring 14 is clamped between the main cavity 1 and the top plate 2.

As a preferred mode, the plurality of top plate air holes 20 are distributed on the top plate 2 in an array, the plurality of panel air holes 30 are distributed on the panel 3 in an array, and the plurality of adsorption air holes 40 are distributed on the elastic adhesive layer 4 in an array. Wherein, the air holes distributed in an array form can apply balanced adsorption force to the workpiece.

Further, the main cavity 1 is rectangular, and the top plate 2 and the face plate 3 are rectangular plates.

In order to facilitate the installation of the vacuum chuck device at a specific position, in this embodiment, the main cavity 1 has installation grooves 15 formed at the left and right sides thereof.

Example two

In practical application, the negative pressure sucker device adsorbs a workpiece through the suction holes densely distributed on the top of the negative pressure sucker device, except the suction holes, sealing conditions among all components are required to be met, and the negative pressure of the suction holes can be ensured to be enough only when the sealing performance is enough.

To this end, the present embodiment provides a sealing mechanism of a negative pressure chuck device, which is capable of independently sealing each air hole and improving the sealing effect, and is shown in fig. 3, fig. 4 and fig. 5, and includes a top plate 2, a panel 3 and a sealing grid 5, wherein the panel 3 covers the top of the top plate 2 and is fixedly connected to the top plate 2, the top plate 2 is provided with a plurality of top plate air holes 20, the panel 3 is provided with a plurality of panel air holes 30, the panel air holes 30 are aligned with the top plate air holes 20 one by one, the top plate 2 is formed with a plurality of unit bumps 21 distributed in an array manner at the top, the top plate air holes 20 are corresponding to the unit bumps 21 one by one, the top plate air holes 20 are opened on the unit bumps 21, a grid clamping groove 22 is formed between two adjacent unit bumps 21, and the sealing grid 5 is clamped in the grid clamping groove 22, the height of the top of the sealing grid 5 is greater than that of the top of the unit bump 21, and the top of the sealing grid 5 is in close contact with the bottom surface of the panel 3.

In the above structure, the top of the top plate 2 is provided with the plurality of unit bumps 21 distributed in an array, the top plate air holes 20 are opened on the unit bumps 21, and the grid clamping grooves 22 are formed between two adjacent unit bumps 21, so that the unit bumps 21 can penetrate through the unit grids of the sealing grid 5, on the basis, the top height of the sealing grid 5 is made larger than the top height of the unit bumps 21, so that the top of the sealing grid 5 can be tightly abutted against the bottom surface of the panel 3, when the panel 3 is fixed on the top of the top plate 2, the sealing grid 5 can be clamped between the two, at this time, the unit grids of the sealing grid 5 can be utilized to play a role of independent sealing on the unit bumps 21, and even if some positions of the sealing grid 5 are damaged, the whole adsorption effect cannot be greatly influenced, thereby ensuring the adsorption capacity of the negative pressure sucker device and better meeting the application requirements.

In order to further improve the sealing performance between the panel 3 and the top plate 2, in the present embodiment, the top of the sealing grid 5 is formed with an upwardly raised rib 50, and the rib 50 is in close contact with the bottom surface of the panel 3.

Preferably, the cross-section of the rib 50 is semi-circular. The ribs 50 of semicircular cross section are more easily deformed when they abut against the panel 3, thereby achieving a better sealing effect.

In this embodiment, four sealing grids 5 are provided on the top of the top plate 2. The structure of four independent sealing grids 5 is preferably arranged in the embodiment, and in the application process, once a certain sealing grid 5 is damaged, the corresponding sealing grid 5 is directly replaced, so that the waste of workpieces is avoided, and the maintenance cost is saved.

Preferably, the cell bumps 21 are square bumps, and the sealing grid 5 includes square grid holes 51. Further, the sealing grid 5 is made of soft rubber.

In order to achieve reliable fixing, in the present embodiment, the panel 3 and the top plate 2 are fixedly connected by screws.

EXAMPLE III

In practical application, the existing vacuum chuck is provided with the uniformly distributed air suction holes on the top surface, and when mechanical processing is carried out, the air suction holes uniformly distributed need to be controlled to suck air simultaneously to adsorb a workpiece, but the vacuum chuck with the structure can only adsorb the workpiece with a smooth surface, when the workpiece is uneven or has concave positions and hollow-out positions, the workpiece cannot be reliably adsorbed, and meanwhile, negative pressure of the air suction holes is integrally low, air sources are wasted and other adverse effects are caused.

To this end, the present embodiment provides an air pressure distribution mechanism of a negative pressure chuck device, which is capable of controlling an air hole covered by a workpiece to automatically open and simultaneously close the air hole uncovered by the workpiece, so as to improve an adsorption capacity and save an air source, and is shown in fig. 3, fig. 6 and fig. 7, the air pressure distribution mechanism includes a main cavity 1, a top plate 2 fixed to the top of the main cavity 1, and a plurality of pressure difference valves 6 disposed at the bottom of the top plate 2, a constant pressure cavity 10 is formed in the main cavity 1, the constant pressure cavity 10 is used for communicating with an external vacuum pumping device, the top plate 2 is provided with a plurality of top plate air holes 20, the pressure difference valves 6 correspond to the top plate air holes 20 one by one, an air inlet at the top of the pressure difference valve 6 is communicated with the top plate air holes 20, an air outlet at the bottom of the pressure difference valve 6 is communicated with the constant pressure cavity 10, and the pressure difference valves 6 are used for:

when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is larger than a first air pressure threshold value, the top plate air hole is closed;

when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is smaller than a second air pressure threshold value, the conduction is performed.

In the above structure, a plurality of pressure difference valves 6 are disposed at the bottom of the top plate 2, the pressure difference valves 6 are in one-to-one communication with the top plate air holes 20, the pressure difference valves 6 are used for controlling the communication state between the top plate air holes 20 and the constant pressure cavity 10, because the pressure difference valves 6 have upper and lower thresholds when receiving air pressure, when the pressure difference between the top plate air holes 20 and the constant pressure cavity 10 is greater than a first air pressure threshold, it indicates that the top plate air holes 20 are not covered by a workpiece, the pressure difference between the top plate air holes 20 is atmospheric pressure, and the pressure difference between the top plate air holes 20 and the constant pressure cavity 10 is greater, the pressure difference valves 6 are in a closed state, when the pressure difference between the top plate air holes 20 and the constant pressure cavity 10 is less than a second air pressure threshold, it indicates that the top plate air holes 20 are covered by a workpiece, the pressure difference between the top plate air holes 20 and the constant pressure cavity 10 is reduced, and the pressure difference valves 6 are in a conductive state, make roof gas pocket 20 with the switch-on in constant pressure chamber 10, and then play the adsorption to the work piece, compare prior art, the utility model discloses a mode that the gas pocket that the control work piece covered switched on automatically will not be closed by the gas pocket that the work piece covered simultaneously for each gas pocket has independent on-off control function, has promoted suction disc device's adsorption efficiency from this, also avoids the air current extravagant simultaneously, thereby energy saving consumption.

In order to support the differential pressure valve 6, in the present embodiment, a liner plate 7 is fixed in the constant pressure chamber 10, and the differential pressure valve 6 is sandwiched between the liner plate 7 and the top plate 2.

Regarding the preferable structure of the differential pressure valve 6, in this embodiment, the differential pressure valve 6 includes a valve seat 60, a valve core 61 and a spring 62, the valve seat 60 is fixedly disposed at the bottom of the top plate 2, a valve hole 63 is formed in the valve seat 60, the valve hole 63 penetrates through the upper end and the lower end of the valve seat 60, the upper end of the valve hole 63 is communicated with the top plate air hole 20, the valve core 61 is disposed in the valve hole 63, the spring 62 is clamped between the lower end of the valve core 61 and the liner plate 7, when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is greater than a first air pressure threshold value, the valve core 61 moves downward and closes the valve hole 63, and when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is less than a second air pressure threshold value, the valve core 61 moves upward and conducts the valve hole 63.

In the above structure, the first air pressure threshold and the second air pressure threshold are obtained by setting the elastic force of the spring 62, when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is greater than the first air pressure threshold, it indicates that the top plate air hole 20 is not covered by the workpiece, and under the action of atmospheric pressure, the valve core 61 overcomes the elastic force of the spring 62 and moves downward, and at the same time, the valve hole 63 is closed; when the pressure difference between the top plate air hole 20 and the constant pressure cavity 10 is smaller than a second air pressure threshold, it indicates that the top plate air hole 20 is covered by the workpiece, the inside of the top plate air hole 20 is isolated from the external atmospheric pressure, and the valve core 61 is lifted up under the action of the elastic force exerted by the spring 62, so that the valve hole 63 is communicated. Based on the above principle, it can be seen that the utility model provides a differential pressure valve 6 can realize self-closing and switch on the process, helps realizing the automatic allocation of atmospheric pressure.

In a preferred embodiment, the first air pressure threshold is 0.05MPa, and the second air pressure threshold is 0.03 MPa.

Regarding the preferred structure of the constant pressure chamber 10, in the present embodiment, a plurality of transverse partition plates 16 and a plurality of longitudinal partition plates 17 are formed in the constant pressure chamber 10, and the transverse partition plates 16 and the longitudinal partition plates 17 divide the constant pressure chamber 10 into a plurality of unit chambers 18.

In order to equalize the air pressure among the plurality of unit chambers 18, in the present embodiment, the transverse partition 16 is provided with an air guide slot 19, and the air guide slot 19 is communicated between two adjacent unit chambers 18.

Preferably, two lining plates 7 are fixed in the constant pressure cavity 10. Further, in order to match the lining plate 7 well, in this embodiment, a supporting column 70 extending upward is formed at the top end of the boundary between the transverse partition 16 and the longitudinal partition 17, and the lining plate 7 abuts against the top end of the supporting column 70.

In this embodiment, preferably, the clamping is realized by an insertion manner, specifically, a liner plate insertion column 71 is formed at the top end of the support column 70, a liner plate insertion hole 72 is formed in the liner plate 7, and the liner plate insertion column 71 is inserted into the liner plate insertion hole 72.

For convenience of processing and manufacturing, in the present embodiment, the main chamber 1, the transverse partition 16 and the longitudinal partition 17 are integrally formed.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. A negative pressure sucker device for a non-magnetic flat workpiece is characterized by comprising a main cavity (1), a top plate (2) and a panel (3), a constant pressure cavity (10) communicated with a vacuum pumping device is arranged in the main cavity body (1), the top plate (2) is fixed on the top of the main cavity (1), the top plate (2) covers the constant pressure cavity (10), and the top plate (2) is provided with a plurality of top plate air holes (20), the panel (3) is detachably fixed on the top of the top plate (2), the top of the panel (3) is provided with an elastic glue layer (4) which is integrally formed by injection molding, a plurality of panel air holes (30) are arranged on the panel (3), a plurality of adsorption air holes (40) are formed on the elastic adhesive layer (4), the adsorption air holes (40), the panel air holes (30) and the top plate air holes (20) are sequentially arranged in an aligned mode.

2. The nonmagnetic flat workpiece negative pressure suction cup device according to claim 1, characterized in that a hand slide valve (11) is fixed on the outer side of the main cavity body (1), and the hand slide valve (11) is communicated between the vacuum pumping equipment and the constant pressure cavity (10).

3. The negative pressure sucking disc device for the non-magnetic flat workpiece according to claim 1, wherein a negative pressure gauge (12) is fixed on the outer side of the main cavity (1), and the sensing end of the negative pressure gauge (12) is communicated with the constant pressure cavity (10).

4. The negative pressure sucker device for non-magnetic flat workpieces as defined in claim 1, wherein a sealing ring groove (13) is formed at the top edge of the main cavity (1), a sealing ring (14) is disposed in the sealing ring groove (13), and the sealing ring (14) is clamped between the main cavity (1) and the top plate (2).

5. The non-magnetic flat workpiece negative pressure suction cup device according to claim 1, wherein a plurality of top plate air holes (20) are distributed on the top plate (2) in an array, a plurality of panel air holes (30) are distributed on the panel (3) in an array, and a plurality of adsorption air holes (40) are distributed on the elastic adhesive layer (4) in an array.

6. The negative pressure sucker device for non-magnetic flat workpieces as defined in claim 1, wherein the main cavity (1) is rectangular, and the top plate (2) and the face plate (3) are rectangular plates.

7. The negative pressure sucker device for non-magnetic flat workpieces as defined in claim 6, wherein the main cavity (1) is provided with mounting grooves (15) at the left and right sides thereof, respectively.

8. The non-magnetic flat workpiece negative pressure suction cup device according to claim 1, wherein the elastic glue layer (4) is an epoxy glue layer, and the panel (3) is an aluminum alloy plate.

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