CN-121973268-A - Device and method for non-destructive grabbing non-magnetic net-shaped metal sheet based on paper separating medium

CN121973268ACN 121973268 ACN121973268 ACN 121973268ACN-121973268-A

Abstract

The invention discloses a device and a method for nondestructively grabbing a nonmagnetic mesh metal sheet based on a paper separating medium, wherein the device comprises a device bottom plate, a first lifting mounting plate, a plurality of nondestructively clamping mechanisms and a positioning mechanism, the positioning mechanism is used for pushing and positioning the mesh metal sheet, the nondestructively clamping mechanisms are used for nondestructively clamping or releasing the mesh metal sheet, a side connecting plate is further arranged on the side edge of the device bottom plate and is connected with a second mounting plate, a Bernoulli sucker is arranged at the bottom of the second mounting plate and is used for nondestructively picking or releasing the paper separating below the mesh metal sheet, so that the mesh metal sheet is lifted together, and a plurality of sucker assemblies are further arranged around the second mounting plate.

Inventors

XIAO BIN
XU HUASHENG
LI WEI
YANG TIAN
CHENG YING
WANG JIANGANG

Assignees

武汉华工激光工程有限责任公司
华工科技产业股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251219

Claims (10)

1. The device for non-destructive grabbing of the non-magnetic meshed metal sheet based on the paper separating medium is characterized by comprising a device bottom plate, a first lifting mounting plate is arranged below the device bottom plate, a plurality of non-destructive clamping mechanisms and positioning mechanisms are respectively arranged on a plurality of sides of the first mounting plate, the positioning mechanisms are used for pushing and positioning the meshed metal sheet, the non-destructive clamping mechanisms are used for non-destructive clamping or releasing the meshed metal sheet, a side connecting plate is further arranged on the side of the device bottom plate, the side connecting plate is connected with a second mounting plate, the second mounting plate is located below the first mounting plate, one or more Bernoulli suckers are arranged at the bottom of the second mounting plate and used for non-destructive picking or releasing paper separating below the meshed metal sheet, so that the meshed metal sheet is lifted together, and a plurality of sucker assemblies are further arranged around the second mounting plate and used for absorbing or releasing edges of the paper separating plate.
2. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on paper separating intermediaries according to claim 1, wherein a vertical connecting plate is arranged on the outer side of the side connecting plate, a vertical moving module is connected to the outer side of the vertical connecting plate, a transverse moving module is connected to the vertical moving module, and a visual unit is connected to the transverse moving module for identifying workpieces and guiding alignment.
3. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on a paper separating medium according to claim 1, wherein the outer side of the side connecting plate is provided with a distance measuring sensor for height detection.
4. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on a paper separating medium according to claim 1, wherein a plurality of lifting driving parts are arranged on a bottom plate of the device, the output ends of the lifting driving parts are downwards connected to the first mounting plate, and a plurality of guide posts are further arranged on the first mounting plate and are in sliding connection with the bottom plate of the device.
5. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on a paper separating medium according to claim 1, wherein the long side of the first mounting plate is provided with a pair of non-destructive clamping mechanisms and one positioning mechanism, the positioning mechanism is located between the pair of non-destructive clamping mechanisms, and the short side of the first mounting plate is provided with one non-destructive clamping mechanism respectively.
6. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on paper separating medium according to claim 1, wherein the non-destructive grabbing mechanism comprises a first driving unit connected with the first mounting plate, an output end of the first driving unit is connected with a vertical first connecting plate, a flexible grabbing claw is arranged below the first connecting plate, a second driving unit is arranged on the inner side of the first connecting plate, an output end of the second driving unit is connected with a liftable pressing plate, and the pressing plate is matched with the flexible grabbing claw to clamp the mesh metal sheets.
7. The device for non-destructive grabbing of non-magnetic mesh metal sheets based on paper separating intermediaries according to claim 1, wherein the positioning mechanism comprises a second connecting plate connected with the first mounting plate, a third driving unit is arranged on the second connecting plate, an output end of the third driving unit is connected with a vertical positioning plate, and a positioning notch is arranged at a lower end of the positioning plate.
8. The non-destructive grabbing non-magnetic mesh sheet metal device based on a spacer medium of claim 1, wherein the suction cup assembly comprises a connecting rod with one end connected to the second mounting plate and the other end connected to a suction cup, the connecting rod extending outwardly along the edge of the second mounting plate.
9. The device for non-destructive grabbing of a non-magnetic meshed metal sheet based on a paper separating medium according to claim 1, wherein the meshed metal sheet is a titanium fiber net or a porous titanium plate with the thickness of 0.1-0.5 mm, the surface of the meshed metal sheet is coated with a Pt/Ir catalyst, and the paper separating medium is a PET film or a Teflon film.
10. A method for non-destructive grabbing non-magnetic mesh metal sheets based on a separator medium, characterized in that the method adopts the non-destructive grabbing non-magnetic mesh metal sheet based on a separator medium as claimed in any one of claims 1-9, and the method comprises the following steps: The device is transferred to a material taking position, and the second mounting plate is adjusted to a proper position right above the meshed metal sheet to be grabbed according to the detected stacking state and the detected height position; Starting the Bernoulli sucker and the sucker assembly to absorb a paper separating tape below a meshed metal sheet to be grabbed, and lifting the paper separating tape together with the meshed metal sheet; The device is transferred to a separation station, the sucker component releases vacuum, and the adsorption on the periphery of the isolation paper is relieved; The non-destructive clamping mechanism clamps the reticular metal sheet from the side edge, and after the locating mechanism locates the reticular metal sheet, the non-destructive clamping mechanism clamps the edge of the reticular metal sheet; The Bernoulli sucker releases vacuum, and the separator losing negative pressure adsorption is separated from the reticular metal sheet under the action of gravity and falls to the recovery device; The device is transferred to a discharging position, and the lossless clamping mechanism releases the meshed metal sheet; The device is transferred to the material taking position to start the next cycle.

Description

Device and method for non-destructive grabbing non-magnetic net-shaped metal sheet based on paper separating medium Technical Field The invention relates to the technical field of intelligent manufacturing and precise automation of new energy equipment, in particular to a device and a method for non-destructive grabbing of a non-magnetic net-shaped metal sheet based on Bernoulli effect and paper-separating medium, and more particularly relates to a non-contact and zero-damage automatic grabbing method and device for a titanium net/porous metal sheet in a PEM (proton exchange membrane) electrolytic tank, which are particularly suitable for grabbing an ultrathin porous metal workpiece with a precious catalytic coating coated on the surface, easy to damage and easy to adhere to a liner paper-separating medium. Background In the automated assembly of PEM electrolyser cells, ultra thin titanium fiber mesh or porous titanium plates provided with functional coatings are key components. The grabbing faces three core problems that the surface is extremely sensitive, any physical contact or friction can damage an expensive catalytic coating to seriously affect the performance and service life of a battery, the structure is highly porous, a traditional vacuum chuck fails due to serious leakage, the material feeding state is special, a titanium mesh is usually stacked with a piece of protective separator paper, and slight adhesion caused by static electricity or Van der Waals force exists between the titanium mesh and the protective separator paper. The prior art schemes have obvious limitations: (1) Direct contact gripping (mechanical clamps, suction cups) cannot avoid the risk of scratching or contamination of the surface of the titanium mesh. (2) Pure negative pressure adsorption, namely low efficiency aiming at a porous structure, and the edge of the sucker can still contact a workpiece. (3) Electromagnetic adsorption, namely, the titanium mesh is nonmagnetic and can not be used. Therefore, the existing production line is severely dependent on manual work, and has low efficiency and poor consistency. An automated grasping solution that achieves complete non-contact, zero damage and high reliability is highly desirable. Disclosure of Invention The invention aims at solving the problems in the prior art, and provides a device and a method for non-destructive grabbing of a non-magnetic mesh metal sheet based on a paper separating medium, which are used for realizing safe, stable and automatic grabbing and separating of ultrathin porous metal sheets such as PEM titanium mesh and the like without direct contact with the ultrathin porous metal sheets by combining the paper separating medium with Bernoulli non-contact sucking. In order to achieve the above purpose, the invention adopts the following technical scheme: The device comprises a device bottom plate, a first lifting mounting plate is arranged below the device bottom plate, a plurality of nondestructive holding and clamping mechanisms and positioning mechanisms are respectively arranged on a plurality of sides of the first mounting plate, the positioning mechanisms are used for pushing and positioning the mesh metal sheet, the nondestructive holding and clamping mechanisms are used for nondestructively clamping or releasing the mesh metal sheet, a side connecting plate is further arranged on the side of the device bottom plate, a second mounting plate is connected to the side connecting plate, the second mounting plate is arranged below the first mounting plate, one or more Bernoulli suckers are arranged at the bottom of the second mounting plate and used for nondestructively picking or releasing the partition paper below the mesh metal sheet, so that the mesh metal sheet is lifted together, and a plurality of sucker assemblies are further arranged around the second mounting plate and used for adsorbing or releasing the edge of the partition paper. Further, the outside of side connecting plate is equipped with vertical connecting plate, the outside of vertical connecting plate is connected with vertical removal module, vertical removal module is connected with the lateral shifting module, the lateral shifting module is connected with the visual unit for discernment work piece and guide counterpoint. Further, a ranging sensor is arranged on the outer side of the side connecting plate, and the ranging sensor is used for detecting the height. Further, be equipped with a plurality of lift driving piece on the device bottom plate, the output of lift driving piece downwards connect to first mounting panel, still be equipped with a plurality of guide posts on the first mounting panel, the guide post with device bottom plate sliding connection. Further, the long side of the first mounting plate is provided with a pair of nondestructive clamping mechanisms and a positioning mechanism, the positioning mechanism is located between the pair of nondestructive clamping mechani