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CN-121976720-A - Novel hinge structure of laser welding

CN121976720ACN 121976720 ACN121976720 ACN 121976720ACN-121976720-A

Abstract

The invention relates to the technical field of hinges, in particular to a novel hinge structure for laser welding, which comprises a double-claw blade, wherein a single-claw blade is arranged on one side of the double-claw blade, a main shaft assembly is arranged on the surface of the single-claw blade, an end cover assembly is connected to the surface of the double-claw blade, the main shaft assembly and the end cover assembly are matched to be used for hinging the double-claw blade and the single-claw blade, the main shaft assembly comprises a main shaft circular tube and a round head pin, one main shaft circular tube is arranged, one main shaft circular tube is welded on the surface of the single-claw blade, round head pins are respectively welded at the upper end and the lower end of the main shaft circular tube, and the end cover assembly comprises an end cover tube and a rubber sleeve. The hinge structure has the advantages of simple structure, few accessories and small accumulated tolerance, and the accessories are few during assembly without assembly by an assembly machine, so that the energy consumption is saved.

Inventors

  • Lu Liaoda
  • DU HAO
  • BAI ZHIQIANG

Assignees

  • 茵科门控（珠海保税区）有限公司

Dates

Publication Date
20260505
Application Date
20260127

Claims (5)

  1. 1. The novel hinge structure for laser welding comprises a double-claw blade (1) and is characterized in that a single-claw blade (2) is arranged on one side of the double-claw blade (1), a main shaft assembly (3) is arranged on the surface of the single-claw blade (2), an end cover assembly (4) is connected to the surface of the double-claw blade (1), and the main shaft assembly (3) and the end cover assembly (4) are matched to be used for hinging the double-claw blade (1) and the single-claw blade (2); The main shaft assembly (3) comprises a main shaft circular tube (31) and round head pins (32), wherein one main shaft circular tube (31) is arranged, and one main shaft circular tube (31) is welded on the surface of a single-claw blade (2), round head pins (32) are respectively welded at the upper end and the lower end of the main shaft circular tube (31), the main shaft circular tube (31) is made of a 304 stainless steel standard tube, and the round head pins (32) are made of a 201 stainless steel standard piece; The end cover assembly (4) comprises end cover pipes (41) and rubber sleeves (42), wherein the two end cover pipes (41) are arranged, the two end cover pipes (41) are welded on the upper side and the lower side of the surface of the double-claw blade (1) respectively, the end cover pipes (41) are made of 304 stainless steel pipes, the rubber sleeves (42) are integrally molded in the end cover pipes (41), and when the double-claw blade (1) and the single-claw blade (2) are assembled, the two rubber sleeves (42) are sleeved on the surface of the round-head pin (32).
  2. 2. The novel hinge structure for laser welding of claim 1, wherein a sealing disc (5) is welded on one side of the rubber sleeve (42) inside the end cover tube (41), the sealing disc (5) is used for sealing the end part of the end cover tube (41), and the sealing disc (5) is made of 304 stainless steel standard discs.
  3. 3. The novel hinge structure for laser welding according to claim 1, wherein a plurality of mounting holes (6) are formed in the surfaces of the double-claw blade (1) and the single-claw blade (2), and the mounting holes (6) facilitate the mounting operation of the double-claw blade (1) and the single-claw blade (2).
  4. 4. The novel hinge structure for laser welding of claim 1, wherein the round pin (32) is in a straight cylindrical round structure, and when the round pin (32) is assembled with the main shaft round tube (31), the bottom of the straight cylinder of the round pin (32) is inserted into the main shaft round tube (31) and fixed by ring welding.
  5. 5. The novel hinge structure for laser welding of claim 1, wherein the round pin (32) is of a stepped round structure, and when the round pin (32) is assembled with the main shaft round tube (31), the stepped part of the round pin (32) is inserted into the main shaft round tube (31) and fixed by ring welding.

Description

Novel hinge structure of laser welding Technical Field The invention relates to the technical field of hinges, in particular to a novel hinge structure for laser welding. Background Hinges are a type of mechanical bearing device used to connect a door (or window) to a door frame (or window frame) and allow limited angular rotation of the door about a fixed axis, thus allowing the door to open and close, which is the most basic, critical functional component in door and window hardware. In the prior art, as shown in fig. 8-11, a 304 stainless steel fine grinding rod is adopted for both a main shaft and an end cover, the material cost is high, the main shaft is turned by machining, the material waste is high, in addition, during machining, the turning difficulty of the 304 stainless steel is high, the cutter loss is high, the double-head machining is required, the coaxiality requirement is high on equipment precision, meanwhile, in the prior art, a shaft sleeve and a steel ball are respectively assembled at the upper end and the lower end of the main shaft, so that the main shaft has a complex structure and a plurality of machining procedures, the rubber sleeve in the prior art is an injection molding piece, the injection molding piece is easy to deform, the assembly is difficult to ensure the assembly and the matching, therefore, the prior art has complex structure, the fittings are more, the accumulated tolerance is large, an automatic assembly machine is required during the assembly, and the energy consumption is high. Disclosure of Invention The invention aims to provide a novel hinge structure for laser welding, which solves the problems that the prior art is complex in structure, more in accessories and large in accumulated tolerance, an automatic assembling machine is needed during assembly, and the energy consumption is high. In order to achieve the aim, the novel hinge structure for laser welding comprises a double-claw blade, wherein a single-claw blade is arranged on one side of the double-claw blade, a main shaft assembly is arranged on the surface of the single-claw blade, an end cover assembly is connected to the surface of the double-claw blade, and the main shaft assembly and the end cover assembly are matched for hinging the double-claw blade and the single-claw blade; The main shaft assembly comprises a main shaft circular tube and round head pins, wherein one main shaft circular tube is arranged, and one main shaft circular tube is welded on the surface of a single claw blade; The end cover assembly comprises two end cover pipes and rubber sleeves, wherein the two end cover pipes are welded on the upper side and the lower side of the surface of the double-claw blade respectively, the end cover pipes are made of 304 stainless steel pipes, the rubber sleeves are integrally injection-molded in the end cover pipes, and when the double-claw blade and the single-claw blade are assembled, the two rubber sleeves are sleeved on the surface of the round head pin of the main shaft. Preferably, a sealing disc is welded inside the end cover pipe and at one side of the rubber sleeve, the sealing disc is used for sealing the end part of the end cover pipe, and the sealing disc is made of 304 stainless steel standard discs. Preferably, a plurality of mounting holes are formed in the surfaces of the double-claw blade and the single-claw blade, and the mounting holes are convenient for mounting the double-claw blade and the single-claw blade. Preferably, the round pin is in a straight cylinder round structure, and when the round pin is assembled with the main shaft round tube, the bottom of the straight cylinder of the round pin is inserted into the main shaft round tube and fixed through ring welding. Preferably, the round pin is in a stepped round structure, and when the round pin is assembled with the main shaft round tube, the stepped part of the round pin is inserted into the main shaft round tube and fixed by ring welding. Compared with the prior art, the invention has the beneficial effects that: 1. the main shaft component is composed of a main shaft circular tube and a round head pin, the main shaft circular tube is made of 304 stainless steel standard tubes, the material cost is low, the round head pin can purchase standard parts from the market, the cost is low, the main shaft component has few working procedures and almost no turning, the precision requirements on the main shaft circular tube and the round head pin are low, and the mass production is ensured by positioning tools and laser welding in the later stage. 2. The end cover assembly is characterized in that the end cover tube is made of standard 304 stainless steel tubes, the sealing disc is made of standard stainless steel discs, the end cover tube and the rubber sleeve are integrally injection molded in the processing procedure, coaxiality can be guaranteed through injection molding of a die, assembly deviation is avoided, stable batch