CN217965757U

CN217965757U - Auxiliary tool for large-torque bolt tightening of part

Info

Publication number: CN217965757U
Application number: CN202221905996.7U
Authority: CN
Inventors: 刘艳娥; 吉强
Original assignee: Xi'an Chengli Aviation Manufacturing Co ltd
Current assignee: Xi'an Chengli Aviation Manufacturing Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-12-06
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses an auxiliary fixtures that is used for big moment of part to tighten up bolt, include: the lower half part of one side of the torque seat is provided with an embedded groove, a through groove penetrating to the top of the torque seat is arranged above the embedded groove, a fixed groove is arranged on the through groove at the top of the torque seat, and clamping planes are symmetrically arranged on two sides of the embedded groove of the torque seat; the torque head is fixedly embedded into the fixed groove, and a clamping groove which is in the same direction as the embedding groove is formed in one side of the torque head; the supporting component is detachably supported at the notch of the caulking groove. The utility model discloses an auxiliary fixtures, simple structure, it is convenient to install, can ensure the dynamics of screwing up that jumbo size bolt and little volume part are connected.

Description

Auxiliary tool for large-torque bolt tightening of part

Technical Field

The utility model relates to a part assembly technical field especially relates to an auxiliary fixtures that is used for big moment of part to screw up bolt.

Background

Various parts are encountered in the aeronautical field. Many parts are provided with screw holes, which require the installation of bolts. Aiming at parts which are small in size and large in bolts to be installed, the parts are difficult to hold by hands due to the fact that the bolts need large force to be tightened, and therefore the tightening degree of the bolts cannot meet requirements. The part shown in fig. 1 is divided into an upper part and a lower part, the upper part of the part is a part main body, a vertical mounting hole is formed in the top end of the part main body, internal threads are formed in the mounting hole, and screwing connection of bolts is needed. One side of the top end of the part main body is provided with an inclined butt joint part. The lower part of the part consists of a small base and a large base which are sequentially and fixedly connected to the bottom end of the part main body. In order to ensure the quality of parts, an auxiliary tool is urgently needed to ensure the screwing force of the bolt.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or deficiency in the prior art, it is desirable to provide an auxiliary tool for tightening a bolt with a large moment on a part, which has a simple structure and is convenient and fast to install, and can ensure the tightening force for connecting a large-size bolt with a small-volume part.

The utility model provides a pair of an auxiliary fixtures that is used for big moment of part to screw up bolt, include:

the lower half part of one side of the torque seat is provided with an embedded groove matched with the profile of the lower half part of the part, a through groove penetrating to the top of the torque seat is arranged above the embedded groove, the top of the torque seat is positioned on the through groove and is provided with a fixed groove, and the two sides of the embedded groove of the torque seat are symmetrically provided with clamping planes;

the torque head is fixedly embedded into the fixed groove, a clamping groove which is in the same direction as the embedding groove is formed in one side of the torque head, and the clamping groove is matched with the outline of the upper half part of the part and used for limiting the rotation of the part;

and the supporting component is detachably supported at the notch of the caulking groove.

Furthermore, the supporting component comprises a supporting rod, a screw hole is axially formed in the supporting rod, and a supporting bolt is connected to the screw hole in a threaded mode.

Furthermore, arc-shaped inclined planes are symmetrically arranged on two sides of the through groove opening on the torque seat.

Furthermore, the torque base and the torque head are both made of high-strength alloy materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an auxiliary fixtures comprises moment seat, moment head and supporting component, when twisting the mounting hole at part top with jumbo size bolt, at first aim at caulking groove and draw-in groove with the part to push moment seat and moment head with the part in, then install the notch department formation support of caulking groove with supporting component. Accomplish the installation back of part, press from both sides on the clamping plane of moment seat both sides through hydraulically operated fixture, fix the moment seat, in the rethread spanner twisted the mounting hole at part top with jumbo size bolt, very big increase the moment when screwing up the bolt. When the hydraulic fixture clamps the torque seat, the support component supports the notch of the caulking groove, so that the caulking groove can be prevented from being reduced in stress to cause extrusion deformation of parts.

The utility model provides an auxiliary fixtures simple structure, it is convenient to install, can ensure the dynamics of screwing up that jumbo size bolt and little volume part are connected.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of a part;

FIG. 2 is a schematic structural view of an auxiliary tool;

FIG. 3 is a schematic view of a torque seat;

FIG. 4 is a schematic view of a torque head;

fig. 5 is a schematic structural diagram of the part installed in the auxiliary tool.

Reference numbers in the figures: 1. a part; 2. a torque seat; 3. a torque head; 4. a support assembly;

11. a part body; 12. mounting holes; 13. a butt joint part; 14. a small base; 15. a large base;

21. caulking grooves; 22. a through groove; 23. a fixed groove; 24. clamping a plane; 25. an arc-shaped inclined plane;

31. a card slot;

41. a support bar; 42. and supporting the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention provides an auxiliary tool for tightening a bolt with a large torque on a part, including:

the lower half part of one side of the torque seat 2 is provided with an embedded groove 21 matched with the profile of the lower half part of the part 1, a through groove 22 penetrating to the top of the torque seat is arranged above the embedded groove 21, a fixed groove 23 is arranged on the through groove 22 at the top of the torque seat 2, and clamping planes 24 are symmetrically arranged at two sides of the torque seat 2, which are positioned on the embedded groove 21;

the torque head 3 is fixedly embedded into the fixed groove 23, one side of the torque head is provided with a clamping groove 31 which is in the same direction as the embedding groove 21, and the clamping groove 31 is matched with the outline of the upper half part of the part 1 and used for limiting the rotation of the part 1;

the supporting component 4 is detachably supported at the notch of the caulking groove 21.

In the embodiment, when a large-size bolt is screwed into the mounting hole 12 on the top of the part 1, as for the part 1 shown in fig. 1, the lower half part of the part 1 is aligned with the caulking groove 21, the upper half part of the part 1 is aligned with the clamping groove 31, the part 1 is pushed into the torque base 2 and the torque head 3, and then the support component 4 is mounted at the notch of the caulking groove 21 to form a support.

The small base 14 and the large base 15 of the embedded groove 21 corresponding to the lower half part of the part 1 are composed of a large groove and a small groove. The small base 14 and the large base 15 are cylindrical structures and are inconvenient to fix, so that the precision requirement of the caulking groove 21 is not high. The clamping groove 31 clamps the part main body 11 through planes on two sides of the part main body, so that the part 1 can be prevented from rotating when a large-size bolt is screwed, the contact area is large, and the fixation is stable.

After the installation of the part 1 is completed, the hydraulic clamp is clamped on the clamping planes 24 on the two sides of the torque seat 2 to fix the torque seat 2, and then a large-size bolt is screwed into the mounting hole 12 at the top of the part 1 through a wrench, so that the torque when the bolt is screwed is greatly increased. The utility model provides an auxiliary fixtures simple structure, it is convenient to install, can ensure the dynamics of screwing up that jumbo size bolt and little volume part are connected.

In a preferred embodiment, as shown in fig. 2 and 5, the support assembly 4 comprises a support rod 41, and the support rod 41 is provided with a screw hole along the axial direction, and a support bolt 42 is screwed on the screw hole. When the support of the rabbet of the caulking groove 21 is carried out, the support component 4 is horizontally placed at the rabbet, and the support bolt 42 is manually rotated to increase the length of the support component 4 so as to support the support component on two side walls of the caulking groove 21. After the large-size bolt is screwed and installed, the supporting bolt 42 is rotated reversely, the length of the supporting component 4 is reduced, and the supporting component can be detached. The simple operation, the supporting effect is good.

In a preferred embodiment, as shown in fig. 2, the torque socket 2 is symmetrically provided with arc-shaped inclined surfaces 25 at both sides of the notch of the through slot 22. The abutment 13 of the component 1 is provided with space so that the component 1 can be completely inserted into the torque socket 2.

In a preferred embodiment, the torque base 2 and the torque head 3 are both made of high-strength alloy materials, so that the torque base is high in structural strength, not prone to deformation and long in service life.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood broadly, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an auxiliary fixtures that is used for big moment of part to screw up bolt which characterized in that includes:

the lower half part of one side of the torque seat is provided with an embedding groove matched with the outline of the lower half part of the part, a through groove penetrating to the top of the torque seat is arranged above the embedding groove, the top of the torque seat is provided with a fixed groove on the through groove, and clamping planes are symmetrically arranged on two sides of the embedding groove of the torque seat;

2. The auxiliary tool for large-torque bolt tightening of parts according to claim 1, wherein the supporting assembly comprises a supporting rod, a screw hole is axially formed in the supporting rod, and a supporting bolt is in threaded connection with the screw hole.

3. The auxiliary tool for large-torque bolt tightening of parts according to claim 1, wherein arc-shaped inclined surfaces are symmetrically arranged on two sides of the notch of the through groove on the torque seat.

4. The auxiliary tool for large-torque bolt tightening of parts according to claim 3, wherein the torque seat and the torque head are both made of high-strength alloy materials.