CN217620152U

CN217620152U - Positioning clamp for contact body

Info

Publication number: CN217620152U
Application number: CN202221274505.3U
Authority: CN
Inventors: 肖瑶; 张萌; 徐广宝
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-10-21
Anticipated expiration: 2032-05-24

Abstract

The utility model provides a contact positioning fixture, include: the insert is coaxially provided with a first cylinder and a second cylinder, the first cylinder is arranged at the top, and the second cylinder is arranged at the bottom; the sleeve is coaxially provided with a central hole and a sleeve stepped hole, the central hole is arranged at the top, and the sleeve stepped hole is arranged at the bottom; the locating piece, coaxial setting locating piece step hole structure and area key cylinder, area key cylinder sets up at the top, and locating piece step hole structure sets up in the bottom, and the area key cylinder passes centre bore and locating piece step hole structure and sleeve step hole cup joints each other and makes sleeve and locating piece cup joint together, and first cylinder passes the centre bore and embolias the area key cylinder in making insert, sleeve and locating piece cup joint each other. The positioning installation of the contact body is realized through the hole position of the mounting hole of the positioning block and the positioning of the positioning key, the accuracy of the axial dimension is ensured through the matching of the integral structure, and the positioning key is suitable for clamping the contact body of a small-spacing high-density product arranged in different hole groups.

Description

Contact body positioning fixture

Technical Field

The specification relates to the field of machining of mechanical parts, in particular to a positioning clamp for a contact body.

Background

Little interval high density insulator product receives the restriction of size space, it is spacing to have no structure between contact and the insulator, the axial dimensions requirement of contact leans on positioning fixture to realize completely, and contact protrusion insulator take the altitude, need guarantee the axiality between contact and the insulator vestibule after the installation, so that the realization of installation back performance, just the design of positioning fixture can satisfy above-mentioned two requirements of its contact installation, and this kind of product has the condition of insulator protrusion casing, lead to when positioning fixture design, need consider how to install insulator bulge and hide, prevent that it from influencing the axial positioning of anchor clamps to the contact, because this kind of product insulator has the requirement of becoming the key position, namely the insulator has five key location grooves, so for the radial positioning when guaranteeing anchor clamps and insulator installation, improve the coaxial precision of installation, need increase the location key structure on anchor clamps, after the structure global design, need consider the realizability of processing, carry out structural division with the global design, guarantee the processing of part and the function realization after the anchor clamps complete set.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present disclosure provide a positioning fixture for a contact, which achieves the purposes of accurately clamping an insulator and accurately mounting the contact.

The embodiment of the specification provides the following technical scheme:

the utility model provides a contact positioning fixture for the axial fixity insulator is provided with a plurality of contact locating holes on the insulator, its characterized in that includes:

the embedded block comprises a first cylinder and a second cylinder which are coaxially arranged, the first cylinder is arranged at the top of the embedded block, and the second cylinder is arranged at the bottom of the embedded block;

the sleeve comprises a central hole and a sleeve step hole which are coaxially arranged, the central hole is arranged at the top of the sleeve, and the sleeve step hole is arranged at the bottom of the sleeve;

the locating piece, the locating piece includes coaxial setting's locating piece step hole structure and area key cylinder, and the area key cylinder sets up at the top of locating piece, and locating piece step hole structure sets up in the bottom of locating piece, and the area key cylinder passes centre bore and locating piece step hole structure and sleeve step hole and cup joints each other and make sleeve and locating piece cup joint together, and the centre bore is passed at first cylindrical top and embolias the area key cylinder in make insert, sleeve and locating piece cup joint each other.

Furthermore, the positioning block further comprises a plurality of mounting holes, the mounting holes are formed in the top of the column with the key, and the mounting holes correspond to the positioning holes of the contact body one to one.

Further, the sleeve is formed by splicing a first sleeve and a second sleeve.

Furthermore, the contact positioning fixture further comprises a cross recessed countersunk head screw, a first threaded mounting hole is formed in the insert, a second threaded mounting hole is formed in the positioning block, a third threaded mounting hole is formed in the sleeve, and the cross recessed countersunk head screw sequentially penetrates through the third threaded mounting hole, the second threaded mounting hole and the first threaded mounting hole to fix the sleeve, the positioning block and the insert into a whole.

Furthermore, the side surface of the cylinder with the key is provided with a plurality of positioning keys, and the positioning keys can be radially clamped with the positioning parts corresponding to the insulators.

Further, the diameter of the cylinder with the key is smaller than the inner diameter of the stepped hole structure of the positioning block.

Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:

hole site through the mounting hole of locating piece, the location of positioning key realizes the location installation of little interval high density contact, guarantee the axiality and the wholeness between contact installation back and the insulator, and through overall structure's cooperation, avoid because of the axial dimension of insulator protrusion shell structure influences the axial dimension of contact unit overall installation, guarantee the functional after the product overall installation, the feasibility of anchor clamps parts machining has been considered simultaneously, can be applicable to the press from both sides of the close interval high density product contact of the similar structure product of different punch combination arrangements and adorn.

Drawings

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

FIG. 1 is an overall structure diagram of a positioning fixture according to an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is a structural diagram of a positioning block according to an embodiment of the present invention;

FIG. 4 is a structural diagram of an upper end face of a sleeve according to an embodiment of the present invention;

fig. 5 is a structural diagram of a lower end surface of a sleeve according to an embodiment of the present invention.

Description of the reference numerals: 1. an insert; 101. a first cylinder; 102. a second cylinder; 103. a first threaded mounting hole; 2. positioning blocks; 201. a positioning key; 202. a keyed cylinder; 203. a positioning block step hole structure; 204. a second threaded mounting hole; 205. mounting holes; 3. a sleeve; 301. a central bore; 302. a stepped bore; 303. a third threaded mounting hole; 304. a first sleeve; 305. a second sleeve; 4. cross recessed countersunk flat head screw.

Detailed Description

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

The following embodiments of the present application are described by specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. In addition, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to or other than one or more of the aspects set forth herein.

It should be further noted that the drawings provided in the following embodiments are only schematic illustrations of the basic concepts of the present application, and the drawings only show the components related to the present application rather than the numbers, shapes and dimensions of the components in actual implementation, and the types, the numbers and the proportions of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

This embodiment is used for the contact axial dimensions location of connector, when realizing the little apart from high density product contact location, guarantees that insulator protrusion shell structure can not lead to the fact the influence to the axial dimensions of product contact location, provides a thinking for the contact axial dimensions location of solving the peculiar structure product.

The part to be processed is a part of the connector, and the part to be processed includes a housing, an insulator and a contact body, the insulator having a plurality of contact body positioning holes, one contact body being inserted inside each of the contact body positioning holes. The shell is wrapped outside the insulator, and the insulator protrudes relative to the shell. The insulator is of a special-shaped structure, the front half section of the insulator is hollow, and the rear half section of the insulator is a contact body positioning hole. The contact bodies are made of a plurality of conductive materials with small intervals and high density. The contact bodies are arranged on the insulator, and after the installation, the contact bodies are exposed for a distance at the hollow part of the insulator but far lower than the end face of the insulator.

The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment is a contact body positioning jig for axially fixing a machined part, an insulator of the machined part is integrally inserted into the contact body positioning jig of the present embodiment, and a specific position for mounting a contact body of the machined insulator is positioned by a plurality of mounting holes 205 on a positioning block 2.

The contact body positioning fixture comprises an insert 1, a positioning block 2, a sleeve 3 and a cross-shaped groove countersunk head screw 4.

As shown in fig. 2, the insert 1 is a step-shaped insert composed of a first cylinder 101 and a second cylinder 102 which are coaxial, and the end surface of the first cylinder 101 should be completely overlapped with the end surface of the keyed cylinder 202 of the positioning block 2, so that the axial dimension of the first cylinder 101 of the insert 1 should be greater than the axial dimension of the central bore formed by the positioning block 2 and the sleeve 3, thereby ensuring the complete attachment of the two end surfaces after the fixture is installed, controlling the axial dimension of the contact body away from the end surface of the housing after the contact body is installed in place, and ensuring the product function.

As shown in fig. 3, the positioning block 2 includes a cylinder 202 with a key, two positioning keys 201 are disposed on the side of the cylinder 202 with the key, the positioning keys 201 and the positioning portions of the insulators of the machined parts are mutually matched and clamped to achieve the purpose of radial positioning with the insulators, and the length of the positioning keys 201 is smaller than the axial length of the contact positioning fixture integrally mounted in the machined parts, which is about 0.5mm to 1.5 mm. The size of the hole site of the mounting hole 205 is consistent with that of the hole site of the contact positioning hole of the insulator mounted on the contact positioning fixture, so that the mounting hole 205 of the positioning block 2 and the contact positioning hole of the insulator to be processed are in one-to-one correspondence coaxial relationship, the coaxiality of the end face part of the protruding insulator after the contact is mounted and the contact positioning hole is ensured, and the function of the mounted product is realized. The insulator of the processed insulator and the shell are installed to expose the end face of the shell, in order to avoid the problem that the axial dimension positioning is inaccurate due to the fact that the insulator of the processed insulator protrudes out of the end face of the shell when a contact body positioning clamp is used, the positioning block stepped hole structure 203 of the positioning block 2 is installed in a matching mode with the stepped hole 302 of the sleeve 3, and the center hole 301 of the sleeve 3 and the keyed cylinder 202 of the positioning block 2 form a hollow annular cylinder. The axial dimension of the hollow annular cylinder is larger than that of the insulator protruding shell, and the hollow annular cylinder is mainly used for installing the insulator protruding shell, so that the problem that the dimension of the end face of the contact body to the shell is not accurately positioned due to the contact of the insulator and the end face of the sleeve 3 is solved.

As shown in fig. 4, the diameter dimension of the central hole 301 of the sleeve 3 is larger than the outer diameter of the insulator protruding out of the housing and smaller than the outer diameter dimension of the abutting end of the insulator and the housing, so as to ensure that the insulator can be installed in the empty annular cylinder formed by the central hole 301 of the sleeve 3 and the keyed cylinder 202 of the positioning block when the contact positioning jig is installed. The end face of the shell can be mounted on the end face of the sleeve 3, and the stepped hole 302 is mounted in a matching manner with the stepped hole structure 203 of the positioning block 2.

In practical use, a plurality of processed parts are connected to form a chain-shaped whole, so that the axial dimension of each processed part needs to be accurate. Through strict control on the axial matching size of the stepped hole 302 and the positioning block stepped hole structure 203 of the positioning block 2, the deviation of the axial positioning size of the contact body caused by accumulation of size chains is avoided.

As shown in fig. 2, 3 and 4, the second cylinder 102 has a first threaded mounting hole 103, the positioning block 2 has a second threaded mounting hole 204, and the sleeve 3 has a third threaded mounting hole 303. The threaded mounting hole is used for locking and mounting the whole threads of the contact body positioning clamp. The insert 1, the positioning block 2 and the sleeve 3 are fixed through a cross recessed countersunk head screw 4. In order to avoid blocking the installation of the cross recessed countersunk head screw 4 due to size problems, the positioning size of the second threaded installation hole 204 of the positioning block 2 is consistent with the installation size of the third threaded installation hole 303 of the sleeve 3 and the first threaded installation hole 103 on the second cylinder 102 of the insert 1. The first threaded mounting hole 103, the second threaded mounting hole 204 and the third threaded mounting hole 303 can be a plurality of groups, the cross recessed countersunk head screws 4 can be a plurality of groups, and each group of threaded mounting holes corresponds to the cross recessed countersunk head screws one by one.

As shown in fig. 5, the sleeve 3 is composed of two symmetrical first sleeve 304 and second sleeve 305. In order to enable the whole contact body positioning clamp to be easily disassembled and assembled, the sleeve 3 is disassembled into two sleeve structures.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the method embodiments described later, since they correspond to the system, the description is simple, and for relevant points, reference may be made to the partial description of the system embodiments.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A contact body positioning fixture for axially fixing an insulator, the insulator being provided with a plurality of contact body positioning holes, comprising:

the embedded structure comprises an embedded structure (1), wherein the embedded structure (1) comprises a first cylinder (101) and a second cylinder (102) which are coaxially arranged, the first cylinder (101) is arranged at the top of the embedded structure (1), and the second cylinder (102) is arranged at the bottom of the embedded structure (1);

the sleeve (3) comprises a central hole (301) and a sleeve stepped hole (302) which are coaxially arranged, the central hole (301) is arranged at the top of the sleeve (3), and the sleeve stepped hole (302) is arranged at the bottom of the sleeve (3);

locating piece (2), locating piece (2) are including coaxial locating piece step hole structure (203) and the key cylinder (202) that sets up, key cylinder (202) set up the top at locating piece (2), locating piece step hole structure (203) set up the bottom in locating piece (2), key cylinder (202) pass centre bore (301) and locating piece step hole structure (203) and sleeve step hole (302) cup joint each other and make sleeve (3) cup joint locating piece (2) together, the top of first cylinder (101) is passed centre bore (301) and is emboliaed in key cylinder (202) and make insert (1), sleeve (3) and locating piece (2) cup joint each other.

2. Contact body positioning jig according to claim 1, characterized in that the positioning block (2) further comprises a plurality of mounting holes (205), the plurality of mounting holes (205) being provided on the top of the keyed cylinder (202), the plurality of mounting holes (205) corresponding one-to-one to the contact body positioning holes.

3. Contact body positioning jig according to claim 1, characterized in that the sleeve (3) is formed by splicing a first sleeve (304) and a second sleeve (305).

4. The contact body positioning fixture according to claim 1, further comprising a cross recessed countersunk head screw (4), wherein the insert (1) is provided with a first threaded mounting hole (103), the positioning block (2) is provided with a second threaded mounting hole (204), the sleeve (3) is provided with a third threaded mounting hole (303), and the cross recessed countersunk head screw (4) sequentially penetrates through the third threaded mounting hole (303), the second threaded mounting hole (204) and the first threaded mounting hole (103) to fix the sleeve (3), the positioning block (2) and the insert (1) into a whole.

5. Contact body positioning jig according to claim 1, characterized in that a plurality of positioning keys (201) are provided on the side surface of the keyed cylinder (202), the positioning keys (201) being radially engageable with the corresponding positioning portions of the insulator.

6. Contact body positioning jig according to claim 1, characterized in that the diameter of the keyed cylinder (202) is smaller than the inner diameter of the positioning block stepped bore structure (203).