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CN-224223721-U - Vacuum adsorption table for laser machine

CN224223721UCN 224223721 UCN224223721 UCN 224223721UCN-224223721-U

Abstract

The utility model belongs to the technical field of vacuum adsorption tables, in particular to a vacuum adsorption table for a laser machine, which comprises a base and a through hole sheet, wherein a plurality of vacuum adsorption holes are formed in the through hole sheet, the bottom surface of the through hole thin plate is provided with a communication structure, and the communication structure can enable the adjacent vacuum adsorption holes to be communicated. Compared with the prior art, the utility model utilizes the communication structure to provide buffer transition between the vacuum adsorption holes and the vacuum tube, and adjusts the point-to-face gas flow direction into the point-to-line and then-opposite gas flow direction, thereby avoiding the defect of weak adsorption force of local area of the adsorption surface, ensuring uniform adsorption force of the whole area when dealing with ultrathin products, and being beneficial to improving the precision of product processing.

Inventors

  • Mai Jiewen

Assignees

  • 科耀微电子(广东)有限公司

Dates

Publication Date
20260512
Application Date
20250617

Claims (10)

  1. 1. The vacuum adsorption table for the laser machine is characterized by comprising a base and a through hole thin plate, wherein a plurality of vacuum adsorption holes are formed in the through hole thin plate, the top ends of the vacuum adsorption holes extend to the top surface of the through hole thin plate and form an adsorption surface, the bottom ends of the vacuum adsorption holes extend to the bottom surface of the through hole thin plate, the bottom surface of the through hole thin plate is provided with a communication structure, the communication structure can enable the adjacent vacuum adsorption holes to be communicated, the base is provided with a vacuum cavity, the through hole thin plate is arranged at the top of the base and covers the vacuum cavity, the bottom of the vacuum cavity is provided with a vacuum tube, and one end of the vacuum tube faces the communication structure and the other end of the vacuum tube is connected with a vacuum generator.
  2. 2. The vacuum adsorption table for a laser machine according to claim 1, wherein the plurality of vacuum adsorption holes are arranged on the through hole sheet in a rectangular array, the communication structure comprises a plurality of first air guide grooves which are transversely arranged and a plurality of second air guide grooves which are longitudinally arranged, the first air guide grooves can be communicated with the plurality of vacuum adsorption holes which are transversely arranged, and the second air guide grooves can be communicated with the plurality of vacuum adsorption holes which are longitudinally arranged.
  3. 3. The vacuum adsorption table for the laser machine of claim 2, wherein the width of the first air guide groove is matched with the aperture of the vacuum adsorption hole, and the depth of the first air guide groove is 0.4-0.8 mm.
  4. 4. The vacuum adsorption table for the laser machine of claim 2, wherein the width of the second air guide groove is matched with the aperture of the vacuum adsorption hole, and the depth of the second air guide groove is 0.4-0.8 mm.
  5. 5. The vacuum adsorption table for a laser machine according to claim 1, wherein the aperture of the vacuum adsorption hole is 1.3-1.8 mm.
  6. 6. The vacuum adsorption table for a laser machine of claim 1, wherein the through-hole sheet is further provided with a plurality of auxiliary adsorption holes, the auxiliary adsorption holes are positioned between two adjacent vacuum adsorption holes, and the top ends of the plurality of auxiliary adsorption holes are extended to the adsorption surface, and the bottom ends of the plurality of auxiliary adsorption holes are extended to the communication structure.
  7. 7. The vacuum adsorption table for a laser machine according to claim 6, wherein the aperture of the auxiliary adsorption hole is 0.8-1.2 mm.
  8. 8. The vacuum adsorption table for a laser machine of claim 1, wherein a supporting step is concavely arranged at the top end of the base, and the through hole thin plate is detachably fixed on the supporting step.
  9. 9. The vacuum chuck for laser machine of claim 8, wherein a plurality of screw holes are formed in the edge of the through hole sheet, and screw holes corresponding to the screw holes are formed in the supporting step.
  10. 10. The vacuum chuck for a laser machine of claim 9, further comprising a sealing gasket stacked between the support step and the through-hole sheet and having a hole through which a screw passes.

Description

Vacuum adsorption table for laser machine Technical Field The utility model belongs to the technical field of vacuum adsorption tables, and particularly relates to a vacuum adsorption table for a laser machine. Background The vacuum adsorption platform is used for providing adsorption fixing force for a product (such as a PCB circuit board) processed by a laser machine, and in the prior art, as shown in Chinese patent application ZL202221651387.3, an adsorption pore plate is arranged on an adsorption seat, the adsorption pore plate is arranged on the bottom surface of the adsorption seat through bolts, a vacuum cavity is arranged in the adsorption seat, the vacuum cavity is communicated with a vacuumizing pipe, and the vacuumizing pipe directly acts on a plurality of adsorption pore plates to realize vacuum adsorption of the product. Disclosure of utility model The utility model aims to provide a vacuum adsorption table for a laser machine, and aims to solve the technical problems in the prior art. In order to achieve the above object, the vacuum adsorption platform for a laser machine provided by the embodiment of the utility model comprises a base and a through hole thin plate, wherein a plurality of vacuum adsorption holes are formed in the through hole thin plate, the top ends of the vacuum adsorption holes extend to the top surface of the through hole thin plate and form adsorption surfaces, the bottom ends of the vacuum adsorption holes extend to the bottom surface of the through hole thin plate, the bottom surface of the through hole thin plate is provided with a communication structure, the communication structure can enable the adjacent vacuum adsorption holes to be communicated, the base is provided with a vacuum cavity, the through hole thin plate is arranged at the top of the base and covers the vacuum cavity, a vacuum tube is arranged at the bottom of the vacuum cavity, and one end of the vacuum tube faces the communication structure and the other end of the vacuum tube is connected with a vacuum generator. Optionally, the plurality of vacuum adsorption holes are arranged on the through hole sheet in a rectangular array, the communication structure comprises a plurality of first air guide grooves which are transversely arranged and a plurality of second air guide grooves which are longitudinally arranged, the first air guide grooves can be communicated with the plurality of vacuum adsorption holes which are transversely arranged, and the second air guide grooves can be communicated with the plurality of vacuum adsorption holes which are longitudinally arranged. Optionally, the width of the first air guide groove is matched with the aperture of the vacuum adsorption hole, and the depth of the first air guide groove is 0.4-0.8 mm. Optionally, the width of the second air guide groove is matched with the aperture of the vacuum adsorption hole, and the depth of the second air guide groove is 0.4-0.8 mm. Optionally, the aperture of the vacuum adsorption hole is 1.3-1.8 mm. Optionally, the through hole sheet metal has still offered a plurality of supplementary absorption holes, supplementary absorption hole is located adjacent two between the vacuum absorption hole, a plurality of supplementary absorption hole's top is prolonged and is established to the absorption face, the bottom is prolonged and is established to the communication structure. Optionally, the aperture of the auxiliary adsorption hole is 0.8-1.2 mm. Optionally, a supporting step is concavely arranged at the top end of the base, and the through hole thin plate is detachably fixed on the supporting step. Optionally, a plurality of screw through holes are formed in the edge of the through hole thin plate, and screw tooth holes corresponding to the screw through holes are formed in the supporting steps. Optionally, the sealing device further comprises a sealing gasket, wherein the sealing gasket is overlapped between the supporting step and the through hole thin plate and provided with a through hole for a screw to pass through. The technical scheme of the vacuum adsorption table for the laser machine provided by the embodiment of the utility model has at least one of the following technical effects: compared with the prior art, the utility model utilizes the communication structure to provide buffer transition between the vacuum adsorption holes and the vacuum tube, and adjusts the point-to-face gas flow direction into the point-to-line and then-opposite gas flow direction, thereby avoiding the defect of weak adsorption force of local area of the adsorption surface, ensuring uniform adsorption force of the whole area when dealing with ultrathin products, and being beneficial to improving the precision of product processing. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly