CN202031942U - Stop block type one-way nut compacted positioning pin - Google Patents

Abstract

The utility model belongs to the aircraft riveting assembly technology, and relates to a stop block type one-way nut pressing a positioning pin. The stop block type one-way nut compression positioning pin is composed of an eccentric stop block [1], a shaft [2], a nut [3], a pin body [4], and a handle [5]. Wherein, an eccentric stop block [1] is installed through the shaft [2] in the arc groove at the front end of the pin body [4], and a handle [5] is installed on the rear end of the pin body [4], and the pin body [4] Nut [3] is installed by threads. The utility model can realize one-way positioning parts operation, can be used in a closed structure, can realize single-person operation of parts positioning in larger area tooling, and is easy to operate, can greatly improve the pressing efficiency, and has certain practical application value.

Description

Stop block type one-way nut compresses the positioning pin

technical field

The utility model belongs to the aircraft riveting assembly technology, and relates to a stop block type one-way nut pressing a positioning pin.

Background technique

A large number of compression parts are required in the riveting assembly tooling of aircraft products. During the pre-assembly, assembly, riveting and part removal process of parts, it is necessary to repeatedly compress or loosen some compression parts. Most of the compression parts designed in the current technology are used in the positioning of the positioning bolts and nuts, which need to be rotated for a long distance to work during the compression or loosening process, and for larger tooling, additional positioning is required when the parts are positioned. Only one person cooperates to complete the installation operation, so manpower is wasted, and the efficiency of positioning and pressing is low.

Contents of the invention

The purpose of the utility model is to propose a stop block type one-way nut compression positioning pin which is fast in installation, convenient in operation and high in positioning and compression efficiency.

The technical scheme of the utility model is: a stop block type one-way nut compression positioning pin, which includes an eccentric stop block, a shaft, a nut, and a pin body, wherein the front end of the pin body has an arc groove, and is set by the shaft There is an eccentric stop block that can rotate relative to the arc groove, and the nut is sleeved on the pin body through threaded connection.

The end of the pin body is laterally provided with a handle through a drilled hole.

The utility model has the advantages that: the stop block type one-way nut of the utility model presses the positioning pin through the relative positional relationship between the eccentric stop block and the pin body to realize positioning parts, and the nut is pressed and fixed or loosened and disassembled. The operation is simple, and it can realize one-way positioning parts operation, which can be applied in a closed structure, or can realize single-person operation of parts positioning in large-area tooling, and the nut is pressed tightly, and the positioning is reliable, which greatly improves the work efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of a preferred embodiment of the stop block type one-way nut pressing the positioning pin of the utility model;

Figure 2 is a top view of Figure 1,

Among them, 1-eccentric stop block, 2-shaft, 3-nut, 4-pin body, 5-handle.

Detailed ways

The utility model will be further described below by specific examples.

Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is a structural schematic diagram of a preferred embodiment of the stop block type one-way nut compression positioning pin of the present invention, and Fig. 2 is a top view of Fig. 1 . The stop block type one-way nut compression positioning pin includes an eccentric stop block 1 , a shaft 2 , a nut 3 , a pin body 4 and a handle 5 . Wherein, the front end of the pin body of the positioning pin has an arc groove, and an eccentric stop block 1 that can rotate relative to the inside of the arc groove of the positioning pin is provided through the shaft 2, and the eccentric stop block 1 can rotate from a circle to Slip out of the arc groove. The nut 3 is sleeved on the pin body 4 through a threaded connection, and the handle 5 is arranged laterally at the end of the pin body 4 through a drill hole.

When the stop block type one-way nut of the utility model presses the positioning pin to work: if the pressing parts need to be positioned, the pin body 4 is rotated through the handle 5, so that the eccentric stop block 1 is under the action of gravity and the circular arc groove of the positioning pin. Keep a straight line with the pin body 4, put the pin body 4 into the positioning hole of the tooling from the side with parts, and then rotate the pin body 4 180°, so that the eccentric stop block 1 is aligned with the pin body 4 under the action of gravity. In the vertical state, the eccentric stop block 1 blocks the wall of the tooling hole so that the pin body 4 cannot be retracted, and the nut 3 is tightened to compress the parts, thereby realizing the functions of pressing and positioning the parts. When loosening the part, loosen the nut 3, rotate the pin body 4 by 180°, the eccentric stop block 1 is in a straight line state with the pin body 4 under the action of gravity, and then withdraw the pin body 4 to realize the loosened state of the part, thereby It is very convenient and quick to realize the fast pressing and loosening of parts.

The stop block type one-way nut of the utility model presses the positioning pin through the relative positional relationship between the eccentric stop block and the pin body to realize positioning parts, and the nut is pressed and fixed or loosened and disassembled. The operation is simple and does not require much rotation. The long-distance thread can realize the pressing of the parts, and can realize the single-person operation and installation of one-way or large-face parts positioning. It can be applied to the closed structure, and the nut is pressed tightly, and the positioning is reliable, which greatly improves the work efficiency.

Claims (2)

1. A stop block type one-way nut compression positioning pin is characterized in that: it includes an eccentric stop block [1], a shaft [2], a nut [3], and a pin body [4], wherein the pin body [ 4] The front end has an arc groove, and the shaft [2] is provided with an eccentric stopper [1] that can rotate relative to the arc groove, and the nut [3] is sleeved on the pin body [4] through a threaded connection . 2. The stop block type one-way nut compression positioning pin according to claim 1, characterized in that: the end of the pin body [4] is provided with a handle [5] transversely through a drilled hole.

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