CN210649547U

CN210649547U - Drilling positioning fixture with assembly angular requirement

Info

Publication number: CN210649547U
Application number: CN201921012937.5U
Authority: CN
Inventors: 罗秋妹; 刘鹏; 王聪; 胡超鹏; 屈新河
Original assignee: Changhe Aircraft Industries Group Co Ltd
Current assignee: Changhe Aircraft Industries Group Co Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-06-02
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a drilling positioning fixture with assembly angle requires. This drilling positioning fixture includes: locating plate, mandrel, location axle, locating pin. Wherein: one end of the mandrel is connected with a positioning plate; the positioning plate is in a round handle shape; a plurality of indexing holes for indexing are arranged on the end surface of the positioning plate; the other end of the mandrel is connected with a positioning shaft; the positioning shaft comprises a fork lug, a directional positioning hole is arranged on the fork lug, and a positioning pin is arranged in the directional positioning hole. Provided are a method and a device for optimizing the dismounting obstacle of airplane airborne equipment. The utility model discloses drilling positioning fixture design simple, convenient to use, the powerful quality that has improved the product has effectively simulated the assembly relation of product, can with the angular error accumulation to last equipartition hole on, then can fill the fit-up clearance that the dual equipment joined in marriage formation through the repair of adjustment pad when assembling.

Description

Drilling positioning fixture with assembly angular requirement

Technical Field

The utility model relates to an aeronautical machinery assembly is coordinated and is tried on flight technical field, especially relates to a drilling positioning fixture with assembly angle requirement.

Background

In order to enable a helicopter undercarriage wheel to return to a neutral position, ensure that the helicopter does not deviate from the course when sliding on the ground after landing, and avoid accidents such as shimmy or rollover, the undercarriage is required to have automatic centering, rotation prevention and orientation functions, a device for realizing centering is a cam mechanism, a lower cam and a steering part are pushed back to the initial neutral position by a matching profile between cams, the automatic centering function of a front wheel is realized, and an anti-rotation structure and an orientation lock pin mechanism are used for realizing the rotation prevention and orientation functions. However, the airplane wheel can return to the initial position to ensure that the axis is uniform and difficult, and the undercarriage is formed by combining a plurality of independent small assemblies in clearance fit, fixedly connected through pin holes and an angular limiting anti-rotation structure of a cam. This involves a problem of build-up angular error accumulation and coordination of the build-up.

SUMMERY OF THE UTILITY MODEL

In view of this, decide for a reason in order to discover fast dismouting obstacle, science and decide for a reason optimization measure, promote the technical problem that maintenance guarantee efficiency becomes the field and await solution urgently, the utility model provides a drilling positioning fixture with assembly angle requirement.

This drilling positioning fixture includes: locating plate, mandrel, location axle, locating pin. Wherein: one end of the mandrel is connected with a positioning plate; the positioning plate is in a round handle shape; a plurality of indexing holes for indexing are arranged on the end surface of the positioning plate; the other end of the mandrel is connected with a positioning shaft; the positioning shaft comprises a fork lug, a directional positioning hole is arranged on the fork lug, and a positioning pin is arranged in the directional positioning hole. Provided are a method and a device for optimizing the dismounting obstacle of airplane airborne equipment.

The utility model discloses drilling positioning fixture design simple, convenient to use, the powerful quality that has improved the product has effectively simulated the assembly relation of product, can with the angular error accumulation to last equipartition hole on, then can fill the fit-up clearance that the dual equipment joined in marriage formation through the repair of adjustment pad when assembling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a drill hole positioning jig with an assembly angle requirement according to an embodiment of the present invention;

fig. 2 is a schematic view of a positioning plate according to an embodiment of the present invention;

fig. 3 is a schematic view of a positioning plate and an actual product according to an embodiment of the present invention;

fig. 4 is a schematic view of a mandrel according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an actual product assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of a positioning shaft according to an embodiment of the present invention;

fig. 7 is a schematic view of a positioning shaft and an actual product according to an embodiment of the present invention;

fig. 8 is a schematic view of a drilling jig with product components mounted thereon according to an embodiment of the present invention.

Wherein: the positioning device comprises a positioning pin 1, a positioning shaft 2, a mandrel 3, a first support component 4, a clamping plate component 5, a quick-change drill bushing 6, a positioning plate 7, a bolt 8, an eye bolt 9, a positioning seat component 10, a bottom plate 11, a guide pillar 12, a second support component 13, a square groove 14, a boss 15, a cap 16, an outer cylinder 17 and a positioning bushing 18.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Features and illustrative embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The present invention is in no way limited to any specific arrangement and method set forth below, but rather covers any improvement, replacement or modification of structures, methods, devices without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.

It should be noted that, in case of conflict, the features of the embodiments and examples of the present invention may be combined with each other, and the respective embodiments may be mutually referred and cited. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to solve the multi-hole processing problem after the angular error is accumulated in the undercarriage assembling process, the assembling coordination is high, meanwhile, the relevance of the system is integrated in small parts, the complexity of the fixture is reduced, the labor intensity is reduced, and the manufacturing cost is reduced. The utility model relates to a boring grab is applicable to the radial equipartition spot facing work of nose landing gear in the aircraft, and the main effect is the clamping location.

Referring to fig. 1 to 8, the drill hole positioning jig with assembly angle requirements may include: locating plate 7, mandrel 3, locating shaft 2, locating pin 1. Wherein: one end of the mandrel 3 is connected with a positioning plate 7; the positioning plate 7 is in a round handle shape; a plurality of indexing holes for indexing are arranged on the end surface of the positioning plate 7; the other end of the mandrel 3 is connected with a positioning shaft 2; the positioning shaft 2 comprises a fork lug, a directional positioning hole is arranged on the fork lug, and a positioning pin 1 is arranged in the directional positioning hole.

In some embodiments, the indexing holes are evenly distributed on the end surface of the positioning plate 7.

In some embodiments, the orientation locator holes are configured to simulate an assembly relationship as well as orientation location.

In some embodiments, the positioning plate 7 has a square slot 14 in the center; the square groove 14 is configured as an angular limit.

In some embodiments, the angular position and shape of the square slot 14 is adapted to the shape of the product to be drilled and positioned.

In some embodiments, further comprising: bottom plate 11, support subassembly, wherein: the base plate 11 is provided with a first support assembly 4 and a second support assembly 13; the first and second mount assemblies 4 and 13 support the alignment plate 7, the spindle 3, the alignment shaft 2, and the alignment pin 1.

In some embodiments, the main core components of the drilling fixture include the positioning plate 7, the mandrel 3, the positioning shaft 2, the positioning pin 1, and the like. Wherein the positioning plate 7 is as shown in fig. 2: the end face is in a round handle shape, holes are uniformly distributed at the position 6 of the end face for indexing, and the number of the uniformly distributed holes is determined according to the number of radial holes to be processed on a product. The center square groove 14 of the positioning plate 7 and the side 2 square groove 14 are used for angular limiting, the angular position and the shape of the 3 square groove 14 are determined according to the requirements of the product, and the structure is similar to the structure of the actual product drawing in fig. 3, but the angular position of the 3 square groove 14 can be changed.

The spindle 3 is shown in fig. 4, compared with the assembly diagram of an actual product, the structure and the assembly relationship are simplified, and the spindle is used for installing and limiting the central square hole on the positioning plate 7 and fig. 2.

The positioning shaft 2 is shown in fig. 6, compared with an actual product drawing, the structure is simplified, and the key point of the positioning shaft 2 is a hole on a fork lug, and the hole is used for simulating an assembly relation and positioning.

The utility model has the advantages that: the device design thought is simple, and convenient to use has powerfully improved the quality of product, has effectively simulated the assembly relation of product, has designed one set of boring grab, accumulates the angular error to last equipartition hole on, then through the assembly time adjustment cushion repair fill two reorganization assembly formation assembly gaps.

Referring to fig. 8, the positioning of the drilling positioning fixture is realized by the following steps:

s1, inserting the positioning pin 1 into the fork lug holes of the outer cylinder 17 and the positioning shaft 2, and determining the clamping position of the outer cylinder 17;

s2, positioning the boss 15 of the cap 16 and the two angular square grooves 14 in the positioning plate 7 to determine the position of the cap 16;

s3, processing a first hole on the cap 16 through the quick-change drill bushing 6;

s4, pulling out the bolt 8, integrally rotating the positioning plate 7, the cap 16, the outer cylinder 17, the mandrel 3 and the positioning shaft 2 by 60 degrees, aligning the bolt 8 with the next uniformly distributed hole on the positioning plate 7, re-locking and pressing the part, and drilling.

In addition, in the case of no conflict, those skilled in the art can flexibly adjust the order of the above-mentioned operation steps or flexibly combine the above-mentioned steps according to actual needs. Various implementations are not described again for the sake of brevity. In addition, the contents of the various embodiments may be mutually incorporated by reference.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a drilling positioning fixture with assembly angle requires which characterized in that includes: locating plate, mandrel, location axle, locating pin, wherein:

one end of the mandrel is connected with a positioning plate;

the positioning plate is in a round handle shape;

a plurality of indexing holes for indexing are arranged on the end surface of the positioning plate;

the other end of the mandrel is connected with a positioning shaft;

the positioning shaft comprises a fork lug, a directional positioning hole is arranged on the fork lug, and a positioning pin is arranged in the directional positioning hole.

2. The drill hole positioning jig of claim 1, wherein:

the indexing holes are uniformly distributed on the end surface of the positioning plate.

3. The drill hole positioning jig of claim 1, wherein:

the orientation locator hole is configured to simulate an assembly relationship and an orientation locator.

4. The drill hole positioning jig of claim 1, wherein:

the center of the positioning plate is provided with a square groove;

the square groove is configured as an angular limit.

5. The drill hole positioning jig of claim 1, wherein:

the angular position and the shape of the square groove are matched with the shape of a product to be drilled and positioned.

6. The drill hole positioning jig according to any one of claims 1 to 5, characterized by further comprising: bottom plate, support subassembly, wherein:

a support assembly is arranged on the bottom plate;

the support component is supported with a positioning plate, a mandrel, a positioning shaft and a positioning pin.