CN210649511U

CN210649511U - Quick fixing device of work piece through-hole

Info

Publication number: CN210649511U
Application number: CN201920869768.0U
Authority: CN
Inventors: 王琴; 张裕兵; 王晖; 彭文; 梁伟; 应学海
Original assignee: Jiangxi Changhe Aviation Industries Co Ltd
Current assignee: Jiangxi Changhe Aviation Industries Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-06-02
Anticipated expiration: 2029-06-11

Abstract

The utility model belongs to aircraft structure assembly technique, concretely relates to quick fixing device of work piece through-hole. The fixing device that adopts at present usually is spring locating pin, because the pin rod is lamellar yielding inefficacy. The utility model provides a reliable quick fixing device of work piece through-hole, including round pin section of thick bamboo, spring and pin pole, the device still includes elasticity network, is equipped with elasticity network and spring from inside to outside in proper order in the round pin section of thick bamboo, the pin pole inserts the spring and can drive elasticity network and stretch out from the bottom through-hole of round pin section of thick bamboo 1, and the pin pole can be retrieved under the effect of spring. The structure is simplified, the failure rate is reduced, the convenience and the use efficiency of the tool are improved, and the damage to the hole wall of the workpiece can be avoided by adopting a flexible net-shaped structure.

Description

Quick fixing device of work piece through-hole

Technical Field

The utility model belongs to aircraft structure assembly technique relates to a quick fixing device of work piece through-hole.

Background

Riveting and screwing are two typical airplane structure connection modes, and the common characteristic of the riveting and screwing is that through holes need to be drilled on workpieces to realize positioning connection. The spring positioning pin is used for fixing workpieces in a hole making process, and the conventional spring positioning pin comprises a pin cylinder, a spring, a pin rod, a pin tongue, a gasket and a pressure head. The pin rod is in an extending state by extruding the pressure head and is inserted into the through hole of the workpiece, the pin rod is in a retracting state after the pressure head is loosened, and the pin tongue extrudes and fixes the workpiece. The pin rod becomes two thin sheets and is easy to deform and fail.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: an object of the utility model is to provide a reliable quick fixing device of work piece through-hole has solved the pin rod and has warp the problem.

The utility model discloses a quick fixing device of work piece through-hole, including a round pin section of thick bamboo, spring and pin pole, the device still includes elasticity network, is equipped with elasticity network and spring from inside to outside in proper order in a round pin section of thick bamboo, the pin pole inserts the spring and can drive elasticity network and stretch out from the bottom through-hole of a round pin section of thick bamboo, and the pin pole can retrieve under the effect of spring.

And a pressure head is also arranged at the outer end part of the pin rod.

The pin rod is in threaded connection with the pressure head.

The inner bottom of the pin cylinder is also provided with a gasket.

The elastic reticular structure is made of a plastic reboundable material.

The elastic net structure is provided with a press ring matched with the gasket at the inner end part.

The elastic mesh structure is closed at the outer end.

The elastic net structure is provided with holes at the outer end part, the hole edges are fixed by steel wires, and the hole diameter is smaller than the size of the outer end part of the pin rod.

Has the advantages that: the utility model relates to a quick fixing device of work piece through-hole structure is simplified, has reduced the fault rate, improves convenient degree of instrument and availability factor to adopt flexible network structure can avoid the damage of work piece pore wall.

Drawings

FIG. 1 shows the pin retracted state of the fixation device at rest.

Fig. 2 shows the extended state of the pin after the fixing device is pressed.

Detailed Description

Referring to fig. 1, the fixing device comprises a pin cylinder 1, a pressure head 2, a spring 3, a pin rod 4, a washer 5 and an elastic net structure 6. The pin cylinder 1 takes a pin rod 4 as a shaft core, the pin cylinder 1, a gasket 5, an elastic reticular structure 6 and a spring 3 are sleeved on the pin cylinder in sequence, and the other end of the pin rod 4 is connected with the pressure head 2 in a threaded manner. The elastic net structure 6 is made of plastic resilient material and has certain resilience.

Referring to fig. 2, the positioning pin pliers are used in a matched mode, the lower end of the pin rod 4 extends out by pressing the pressure head 2, the elastic reticular structure 6 is changed from a bending state to a stretching state, and the lower end of the pin rod 4 is inserted into the workpiece positioning hole.

Referring to fig. 1, after the pressing head 2 is loosened, the lower end of the pin rod retracts, so that the elastic reticular structure 6 is extruded and expanded, the diameter of the elastic reticular structure 6 is enlarged, and the pin rod is extruded to fix the hole position of the workpiece.

Claims

1. The utility model provides a work piece through-hole quick fixation device, includes round pin section of thick bamboo (1), spring (3) and pin pole (4), its characterized in that: the device also comprises an elastic net-shaped structure (6), wherein the elastic net-shaped structure (6) and the spring (3) are sequentially arranged in the pin cylinder (1) from inside to outside, the pin rod (4) is inserted into the spring (3) and can drive the elastic net-shaped structure (6) to extend out of a through hole at the bottom of the pin cylinder (1), and the pin rod (4) can be retracted under the action of the spring (3).

2. The workpiece through-hole quick-fixing device of claim 1, wherein: and a pressure head (2) is also arranged at the outer end part of the pin rod (4).

3. The workpiece through-hole quick-fixing device of claim 2, wherein: the pin rod (4) is in threaded connection with the pressure head (2).

4. The workpiece through-hole quick-fixing device of claim 2, wherein: and a gasket (5) is arranged at the inner bottom of the pin cylinder (1).

5. The workpiece through-hole quick-fixing device of claim 4, wherein: the elastic net-shaped structure (6) is made of plastic reboundable material.

6. The workpiece through-hole quick-fixing device of claim 5, wherein: the elastic net-shaped structure (6) is provided with a press ring matched with the gasket (5) at the inner end part.

7. The workpiece through-hole quick-fixing device according to any one of claims 1 to 6, wherein: the elastic net structure (6) is closed at the outer end.

8. The workpiece through-hole quick-fixing device according to any one of claims 1 to 6, wherein: the elastic net-shaped structure (6) is provided with holes at the outer end part, the hole edges are fixed by steel wires, and the hole diameter is smaller than the size of the outer end part of the pin rod (4).