CN-224222652-U - Rivet gun and rivet positioning mechanism thereof

CN224222652UCN 224222652 UCN224222652 UCN 224222652UCN-224222652-U

Abstract

The utility model relates to the technical field of rivet guns, in particular to a rivet gun and a rivet positioning mechanism thereof, wherein the rivet positioning mechanism comprises an upper rivet connecting seat, an upper sliding block, a lower chuck, a compression spring and a torsion spring, an upper rivet through hole and an upper rivet plate groove which are mutually communicated are formed in the upper sliding block, a rivet core groove and a lower rivet plate groove which are mutually communicated are formed in the lower chuck, and a rivet positioning cavity which enables the axis of a clamped rivet to coincide with the axis of a gun head assembly channel is formed by the upper rivet through hole, the upper rivet plate groove, the rivet core groove and the lower rivet plate groove. The rivet enters the upper nail through hole in a mode that the riveting disc is forwards, is clamped by the upper sliding block and the lower clamping head, and is hung on the axis of the gun head assembly channel in a mode that the riveting disc is forwards, and at the moment, the axis of the gun head assembly, the axis of the rivet and the axis of the gun head assembly channel almost coincide, so that the rivet is sleeved into the gun head assembly in a horizontal state, and the clamping nail phenomenon is reduced.

Inventors

GU HANJIE
BAO SHIPING

Assignees

佛山意派德智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250422

Claims (8)

1. A rivet positioning mechanism is characterized by comprising an upper nail connecting seat provided with a gun head assembly channel, an upper sliding block arranged in the upper nail connecting seat in a sliding manner, a lower chuck hinged to the upper nail connecting seat and used for being matched with the upper sliding block to clamp rivets, a compression spring positioned in the upper nail connecting seat and used for driving the upper sliding block to slide downwards, a torsion spring hinged to the upper nail connecting seat and used for driving the lower chuck to rotate upwards in the direction of the sliding block, one end of the compression spring abutted against the upper nail connecting seat, the other end abutted against the upper sliding block, one end of the torsion spring abutted against the upper nail connecting seat, the other end abutted against the lower chuck, an upper nail through hole and an upper riveting disc groove which are mutually communicated, and a rivet core groove and a lower riveting disc groove which are mutually communicated are formed in the upper sliding block, wherein the upper nail through hole, the upper riveting disc groove, the riveting core groove and the lower riveting disc groove form a rivet positioning cavity enabling the axis of the clamped rivets to be coincident with the axis of the gun head assembly channel.
2. The rivet positioning mechanism of claim 1, wherein a rivet throwing gap is formed at the bottom of the upper rivet through hole, the rivet throwing gap being used to throw a rivet shank of the rivet into the shank slot.
3. A rivet positioning mechanism as recited in claim 1, characterized in that the lower jaw is provided with a mandrel baffle for blocking separation of the mandrel from the rivet plate.
4. The rivet positioning mechanism of claim 1, wherein the upper and lower rivet plate grooves are semi-circular grooves and the rivet core groove is a V-shaped groove.
5. The rivet positioning mechanism of claim 1, wherein the upper pin connecting seat is provided with a pin feed pipe joint communicated with the upper pin through hole.
6. The rivet positioning mechanism of claim 1, wherein the sides of the upper slider and the sides of the lower chuck are each configured as a guide ramp for facilitating the gun head assembly to drive the upper slider and the lower chuck to loosen the rivet.
7. A rivet gun which is characterized by comprising a gun head assembly, a rivet positioning mechanism and a breaking assembly according to any one of claims 1-6, wherein the front end of the gun head assembly is fixedly connected with an upper nail connecting seat, and the rear end of the gun head assembly is fixedly connected with the breaking assembly.
8. The riveter of claim 7, wherein the gun head assembly comprises a telescopic cylinder body, a telescopic piston and a gun core piston are slidably sleeved in the telescopic cylinder body, and brake pistons movably clamped with the telescopic piston are arranged on two sides of the telescopic cylinder body.

Description

Rivet gun and rivet positioning mechanism thereof Technical Field The utility model relates to the technical field of riveters, in particular to a riveter and a rivet positioning mechanism thereof. Background The riveter is used for fastening and riveting various metal plates, pipes and other manufacturing industries, and is widely used for riveting electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations and the like. The riveter is developed for solving the defects that nuts are easy to melt, internal threads are easy to slide and the like when metal sheets and thin pipes are welded, the internal threads are not required to be tapped during riveting, the nuts are not required to be welded, and the riveter is firm in riveting, high in efficiency and convenient and fast to use. The structure of the riveter generally comprises a gun head assembly, a rivet loading base, a rivet loading assembly and a breaking assembly from left to right as shown in the disclosure of the CN115921750A patent. The inventor found that the rivet gun in CN115921750a has a problem of difficult positioning of the rivet during the process of riveting in the research and development process, referring to fig. 5, when the rivet feeding assembly (specifically, the guide nozzle 221) pushes the rivet forward into the gun head assembly (specifically, the nail feeding chuck 34), the rivet is located in the second rivet feeding through hole 12 in an inclined state (the rivet head is high and the rivet core is low), so that the rivet sometimes cannot be smoothly sleeved into the gun head assembly, and a clamping phenomenon occurs. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide a rivet positioning mechanism which is used for solving the technical problem that rivets cannot be sleeved into a gun head assembly in a horizontal state, so as to reduce the phenomenon of clamping nails. The technical aim of the utility model is realized by the following technical scheme: A rivet positioning mechanism comprises an upper nail connecting seat provided with a gun head assembly channel, an upper sliding block arranged in the upper nail connecting seat in a sliding manner, a lower chuck hinged to the upper nail connecting seat and used for clamping rivets in a matched manner with the upper sliding block, a compression spring positioned in the upper nail connecting seat and used for driving the upper sliding block to slide downwards, a torsion spring hinged to the upper nail connecting seat and used for driving the lower chuck to rotate upwards in the sliding block direction, one end of the compression spring abuts against the upper nail connecting seat, the other end of the compression spring abuts against the upper sliding block, one end of the torsion spring abuts against the upper nail connecting seat, the other end of the torsion spring abuts against the lower chuck, an upper nail through hole and an upper riveting disc groove which are mutually communicated are formed in the upper sliding block, a riveting core groove and a lower riveting disc groove which are mutually communicated are formed in the lower chuck, and a rivet positioning cavity enabling the axis of the clamped rivet to coincide with the axis of the gun head assembly channel. Optionally, a nail throwing gap is formed at the bottom of the upper nail through hole, and the nail throwing gap is used for throwing the rivet core of the rivet in the rivet core groove. Optionally, a core blocking plate for blocking the core from being separated from the riveting disc is arranged on the lower chuck. Optionally, the upper riveting disc groove and the lower riveting disc groove are both semicircular grooves, and the riveting core groove is a V-shaped groove. Optionally, the upper nail connecting seat is provided with a nail feeding pipe joint communicated with the upper nail through hole. Optionally, the side surface of the upper slide block and the side surface of the lower chuck are respectively provided with a guide inclined surface which is convenient for the gun head assembly to drive the upper slide block and the lower chuck to loosen the rivet. A rivet gun comprises a gun head assembly, the rivet positioning mechanism and a breaking assembly, wherein the front end of the gun head assembly is fixedly connected with an upper nail connecting seat, and the rear end of the gun head assembly is fixedly connected with the breaking assembly. Optionally, the rifle head subassembly includes flexible cylinder body, and the slip cap is equipped with flexible piston and rifle core piston in the flexible cylinder body, and the both sides of flexible cylinder body are provided with the brake piston of flexible piston of movable joint. In summary, the utility model has the advantages that the rivet enters the upper nail through hole in a mode of the ri