CN213005076U

CN213005076U - Positioning tool for nut split pin

Info

Publication number: CN213005076U
Application number: CN202021542019.6U
Authority: CN
Inventors: 张沛尧
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-20
Anticipated expiration: 2030-07-29

Abstract

The utility model provides a positioning tool of nut split pin, this positioning tool is a scissors column structure, contain handle and dop, the dop is inlayed in the front end of handle, the handle comprises left handle and the right handle of symmetry, the front portion of left handle and right handle articulates into the scissors form through the round pin axle, it has a left dop of left bending to inlay at left handle front end, it has a right dop of right bending to inlay at the front end of right handle, left dop and right dop structural symmetry, the size and the nut matching of left dop and right dop.

Description

Positioning tool for nut split pin

Technical Field

The application relates to the technical field of aircraft assembly, in particular to a positioning tool for a nut cotter pin.

Background

In current aircraft structure assembly, bolt and nut are as the fastener connected mode most commonly used, for preventing that simple bolt and nut from connecting and producing the pine in the flight vibration and taking off, pass bolt nut locking with the split pin usually. After the cotter pin passes through the bolt nut, the tail part of the cotter pin needs to be opened and embedded into the nut groove. The opening and tail-insertion of the cotter pin is an important link for assembling the bolt and the nut. Particularly for the split pin form of HB 0-2-2002-A, in the traditional operation, a punch is used for knocking the tail part of the split pin to cut the tail part, and then the end part is pressed into a nut groove, so that the impact force is not easy to grasp, the nut is easy to be cut, the nut cannot be used continuously, and the assembly quality of a product is directly influenced. In the current aircraft assembly, there is a part of narrow and small region of operating space, and when this region bolt need be opened the cotter pin, the cotter pin mode of traditional mode can not satisfy the assembly demand. What is needed is a nut cotter pin positioning tool that can accommodate a variety of bolt types, operate in a narrow space, and improve cotter pin quality and efficiency.

Disclosure of Invention

In view of the needs in the aircraft industry and the problems associated with the prior art, it is an object of the present application to provide a locating tool for a nut cotter pin.

The utility model provides a positioning tool of nut split pin, its characterized in that, this positioning tool is a scissors column structure, contain handle and dop, the dop is inlayed in the front end of handle, the handle comprises left handle and right handle of symmetry, the front portion of left handle and right handle articulates into scissors column through the round pin axle, it has a left dop of left bending to inlay at left handle front end, it has a right dop of right bending to inlay at the front end of right handle, left dop and right dop structural symmetry, the size of left dop and right dop matches with the nut.

The front ends of the left handle and the right handle are respectively provided with a clamping groove, and the axis of the clamping groove is parallel to the hinge pin shaft of the left handle and the right handle.

The tail ends of the left clamping head and the right clamping head are respectively provided with a boss matched with the clamping groove, the left clamping head is embedded in the clamping groove at the front end of the left handle through the boss, and the right clamping head is embedded in the clamping groove at the front end of the right handle through the boss.

The thickness of the left chuck and the right chuck is gradually reduced from the tail end to the front end, cutting edges are respectively formed at the front ends of the left chuck and the right chuck, and the axial direction of the cutting edges is parallel to the axial direction of the boss.

When the anti-loosening split pin is used specifically, the clamping head which is adaptive to the specification is selected according to the size of the nut of the split pin to be opened and is installed in the clamping groove of the handle, the head of the clamping head is aligned to the bolt groove after the split pin is adjusted in place, and the handle is pressed vigorously to cut off the redundant part at the tail of the split pin, so that the good anti-loosening split pin is formed.

The beneficial effect of this application lies in: the application provides a nut cotter locating tool, simple structure carries convenient operation, promotes the especially showing to the installation quality and the efficiency of cotter, can adapt to the nut of different specifications through changing the dop, can adapt to different operating space through changing the handle, can adapt to various narrow and small operating space and adverse operating environment, and the cotter that bolt was locking in the assembly to aircraft structure has universal suitability.

The present application is described in further detail below with reference to the accompanying drawings of embodiments.

Drawings

FIG. 1 is a schematic view of the nut cotter pin open position

Fig. 2 shows a schematic of the nut cotter pin locating tool of the present application.

Fig. 3 is an illustration of the assembled relationship of the nut cotter pin locating tool.

Fig. 4 is a schematic view of a chuck structure.

Fig. 5 is a schematic view of the structure of the grip.

The numbering in the figures illustrates: 1 nut, 2 split pins, 3 nut grooves, 4 left handles, 5 right handles, 6 right chucks, 7 left chucks, 8 pin shafts, 9 hinge holes, 10 clamping grooves, 11 bosses and 12 cutting edges.

Detailed Description

Referring to the drawings, as shown in fig. 1, after the tail part of the cotter 2 passes through the positioning hole on the nut 1, the tail part attached to the cotter needs to be opened, the excessive length of the tail part is removed, and the tail part of the cotter is embedded in the nut groove 3.

The utility model provides a nut split pin's positioning tool can be fine accomplish above-mentioned operation, the positioning tool of this application is a scissors column structure, contain handle and dop, the dop is inlayed at the front end of handle, the handle comprises left handle 4 and right handle 5 of symmetry, the front portion of left handle 4 and right handle 5 articulates into the scissors form through round pin axle 8, it has a left dop 7 of left bending to inlay at left handle 4 front end, it has a right dop 6 of right bending to inlay at the front end of right handle 5, left dop 7 and right dop 6 structural symmetry, the size of left dop 6 and right dop 7 matches with nut 3. In the embodiment, the front end of the left handle or the right handle is provided with a butt joint platform, the butt joint platform sinks relative to the handle, the middle part of the butt joint platform is provided with a hinge hole 9, the front end of the butt joint platform is provided with a clamping groove, during assembly, the left butt joint platform and the right butt joint platform are overlapped, the hinge holes 9 on the left butt joint platform and the right butt joint platform are overlapped, and the pin shaft 8 is used for hinging the left handle 4 and the right handle 5 into a scissors shape through the overlapped hinge holes.

The left chuck and the right chuck are in a symmetrical circular arc shape, the thickness of the left chuck and the thickness of the right chuck are gradually reduced from the tail end to the front end, cutting edges 12 are respectively formed at the front ends of the left chuck and the right chuck, the axial direction of each cutting edge 12 is parallel to the axial direction of the boss 11, the cutting edges 12 are located on the outer side of the circular arc of the chucks, and the redundant tail part of the cotter pin can be cut off through the cutting edges 12.

In order to adapt to nuts with different sizes, in the implementation, the chuck of the positioning tool is movably connected with the handle, the front ends of the left handle and the right handle are respectively provided with a clamping groove 10, and the axis of the clamping groove 10 is parallel to the hinge pin shaft 8 of the left handle 4 and the right handle 5; the tail ends of the left clamping head 6 and the right clamping head 7 are respectively provided with a boss 11 matched with a clamping groove 10, the left clamping head 6 is embedded in the clamping groove 10 at the front end of the left handle 4 through the boss 11, and the right clamping head 5 is embedded in the clamping groove 10 at the front end of the right handle 5 through the boss 11. The movable connection not only can change the corresponding clamping head for adapting to different nuts, but also can change the grips with different lengths under the condition that the stations are not open, thereby meeting the requirements of different environments of a production field.

Claims

1. The utility model provides a positioning tool of nut split pin, its characterized in that, this positioning tool is a scissors column structure, contain handle and dop, the dop is inlayed in the front end of handle, the handle comprises left handle and right handle of symmetry, the front portion of left handle and right handle articulates into scissors column through the round pin axle, it has a left dop of left bending to inlay at left handle front end, it has a right dop of right bending to inlay at the front end of right handle, left dop and right dop structural symmetry, the size of left dop and right dop matches with the nut.

2. The tool for positioning the nut cotter pin according to claim 1, wherein the front ends of the left and right grips are respectively provided with a slot, and the axis of the slot is parallel to the hinge pin axis of the left and right grips.

3. The nut cotter pin locating tool according to claim 2, wherein there is a butt-joint table at the front end of the left or right grip, the middle part of the butt-joint table is provided with a hinge hole, and the front end of the butt-joint table is provided with a slot.

4. The nut cotter pin locating tool according to claim 1 or 2, wherein the left chuck and the right chuck are respectively provided with a boss at the tail end thereof to match with the slot, the left chuck is embedded in the slot at the front end of the left grip through the boss, and the right chuck is embedded in the slot at the front end of the right grip through the boss.

5. The nut cotter pin setting tool of claim 4, wherein the left and right chucks have thicknesses which are gradually reduced from the rear end toward the front end, and cutting edges are formed at the front ends of the left and right chucks, respectively, and the axial directions of the cutting edges are parallel to the axial direction of the boss.