CN216608018U

CN216608018U - Aerospace fastener turning clamping device

Info

Publication number: CN216608018U
Application number: CN202123157300.5U
Authority: CN
Inventors: 张超杰; 周枳岍; 舒平
Original assignee: Yuanfang High Tech Equipment Parts Co ltd
Current assignee: Yuanfang High Tech Equipment Parts Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-27
Anticipated expiration: 2031-12-15

Abstract

The utility model provides a turning and clamping device for aerospace fasteners, which comprises a chuck sleeve, wherein a first end of the chuck sleeve is detachably provided with an adaptive threaded sleeve, and the fasteners are embedded in the adaptive threaded sleeve and are in threaded connection with the adaptive threaded sleeve; the outer diameter of the chuck sleeve is larger than that of the adaptive threaded sleeve; the chuck sleeve is coaxial with the adaptive threaded sleeve. The utility model has reasonable design and simple structure, the arranged adaptive threaded sleeve and the chuck sleeve can be detached, namely, the matched adaptive threaded sleeve can be selected according to the specification of a processed fastener when in use, thereby realizing the clamping processing of fasteners with various specifications under the condition of replacing device accessories, saving the production cost of the device, improving the universality of the device and having strong practicability.

Description

Aerospace fastener turning clamping device

Technical Field

The utility model relates to the technical field of machining, in particular to an aerospace fastener turning and clamping device.

Background

Due to the limitation of the operating environment of the aerospace equipment, the requirements on the production and processing of parts and the assembly of the parts are extremely strict. After the fasteners of a part of the assembly are installed, the fasteners are required to be matched with the assembled parts and the installation tool to be broken, so that the locking purpose is achieved. Threaded type fasteners are common and the designed breaking structures are mostly twist-off grooves formed by turning the fastener.

Chinese patent publication No. CN204673292U discloses a tool for turning a screw-off groove on an external thread of a fastener, which includes an adjusting shim, wherein the adjusting shim is provided with a sleeve hole running through along an axial direction, and a radius of the sleeve hole is larger than a radius of a screw part of the fastener to be processed and smaller than a radius of a nut part of the fastener to be processed; and the threaded clamp is provided with a fastening through hole which is communicated along the axial direction, an internal thread matched with the external thread of the fastener to be processed is tapped on the inner wall of the fastening through hole, and one end of the threaded clamp is matched with the adjusting gasket for placement. The utility model discloses a turning on fastener external screw thread and twisting frock of grooving and can be fast accurate process out the groove of twisting that requires the size at the external screw thread position, can guarantee not to produce burr and screw thread can not indiscriminate tooth, saved the process that detects the screw thread and lead to ending, still improved the machining precision when improving machining efficiency, reduced the rejection rate.

However, the above patents have poor versatility, and usually one set of tooling can only process fasteners of one specification, so that the production cost is increased. In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide the aerospace fastener turning and clamping device, which saves the production cost of the device, improves the universality of the device and has strong practicability.

The embodiment of the utility model is realized by the following technical scheme:

the turning and clamping device for the aerospace fastener comprises a chuck sleeve, wherein an adaptive threaded sleeve is detachably arranged at the first end of the chuck sleeve, and the fastener is embedded in the adaptive threaded sleeve and is in threaded connection with the adaptive threaded sleeve; the outer diameter of the chuck sleeve is larger than that of the adaptive threaded sleeve; the chuck sleeve is coaxial with the adaptive threaded sleeve.

According to a preferred embodiment, the clamping device further comprises a fixed threaded sleeve which is sleeved outside the fastener and is in threaded connection with the fastener, the fixed threaded sleeve is embedded in the chuck sleeve, and the fixed threaded sleeve is distributed away from the first end of the chuck sleeve; a plurality of screw holes are uniformly distributed on the side wall of the chuck sleeve in the circumferential direction around the fastening piece, and the screw holes penetrate through the side wall of the chuck sleeve; a compression screw is connected with the inner thread of the screw hole; the compression screw can abut against or separate from the fixed threaded sleeve in a mode of rotating around the axis of the compression screw in the threaded hole.

According to a preferred embodiment, a plurality of elastic grooves are arranged on the side wall of the fixed screw sleeve in a penetrating manner; and the elastic grooves are uniformly distributed around the circumference of the fixed threaded sleeve.

According to a preferred embodiment, the tail end of the fastener extends out of the second end of the chuck sleeve, the second end of the chuck sleeve is provided with a stop sleeve, and the tail end of the fastener is distributed between the stop sleeve and the second end of the chuck sleeve; a limiting column is embedded in the limiting sleeve, and the limiting sleeve is in threaded connection with the limiting column; the outer diameter of the limiting sleeve is smaller than that of the chuck sleeve.

According to a preferred embodiment, the stop collar has an inner diameter greater than the outer diameter of the tail end of the fastener.

According to a preferred embodiment, the stop collar is connected to the second end face of the chuck sleeve by a pull rod.

According to a preferred embodiment, the adapter sleeve is embedded in the first end of the chuck sleeve and is in threaded connection with the chuck sleeve.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

the utility model has reasonable design and simple structure, the arranged adaptive threaded sleeve and the chuck sleeve can be detached, namely, the matched adaptive threaded sleeve can be selected according to the specification of a processed fastener when in use, thereby realizing the clamping processing of fasteners with various specifications under the condition of replacing device accessories, saving the production cost of the device, improving the universality of the device and having strong practicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a cross-sectional structural view of the present invention assembled with a fastener;

FIG. 2 is a right view of the fixing screw insert according to the present invention;

fig. 3 is a schematic sectional view of the section a-a in fig. 2.

Icon: 1-fastener, 11-breaking groove, 2-adaptive threaded sleeve, 3-chuck sleeve, 31-threaded hole, 32-compression screw, 4-fixed threaded sleeve, 41-elastic groove, 5-pull rod, 6-limiting sleeve and 7-limiting column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, the turning and clamping device for the aerospace fastener comprises a chuck sleeve 3, wherein a first end of the chuck sleeve 3 is detachably provided with an adaptive threaded sleeve 2, and a fastener 1 is embedded in the adaptive threaded sleeve 2 and is in threaded connection with the adaptive threaded sleeve; the outer diameter of the chuck sleeve 3 is larger than that of the adapting screw sleeve 2; the chuck sleeve 3 is coaxial with the adaptive threaded sleeve 2. In this embodiment, can dismantle between adaptation swivel nut 2 and the chuck cover 3, can select the adaptation swivel nut 2 that matches according to the specification of being processed fastener 1 when using promptly to the realization presss from both sides the dress processing to the fastener 1 of multiple specification under the condition of changing the device accessory, has improved the commonality of device when practicing thrift device manufacturing cost, and the practicality is strong. When the tool is used, the adaptive screw sleeve 2 and the chuck sleeve 3 with corresponding specifications are fixedly installed, then the fasteners 1 with the same specifications are installed in the adaptive screw sleeve 2, and the chuck sleeve 3 is installed on a lathe chuck. Preferably, as shown in fig. 1, the adapter sleeve 2 is embedded in a first end of the chuck sleeve 3 and is in threaded connection with the chuck sleeve 3.

Further, in order to prevent the fastener 1 from rotating relative to the chuck sleeve 3 in the process of turning the screw-off groove 11, in this embodiment, the fastening device further includes a fixed threaded sleeve 4 which is sleeved outside the fastener 1 and is in threaded connection with the fastener 1, the fixed threaded sleeve 4 is embedded in the chuck sleeve 3, and the fixed threaded sleeve 4 is distributed away from the first end of the chuck sleeve 3; a plurality of screw holes 31 are uniformly distributed on the side wall of the chuck sleeve 3 in the circumferential direction around the fastening piece 1, and the screw holes 31 penetrate through the side wall of the chuck sleeve 3; a compression screw 32 is connected with the inner thread of the screw hole 31; the compression screw 32 can abut against or be disengaged from the fixing nut 4 in the screw hole 31 in a rotatable manner about its own axis. Furthermore, as shown in fig. 2 and 3, a plurality of elastic grooves 41 are formed through the side wall of the fixing screw sleeve 4; a plurality of elastic grooves 41 are evenly distributed around the circumference of the fixing thread insert 4. The fixed threaded sleeve 4 is consistent with the adaptive threaded sleeve 2, corresponds to the specification of the processing fastener 1 and can be detached and replaced in the use process. When the fixing device is used, the fixing threaded sleeve 4 is firstly installed on the fastening piece 1, then the axial position of the fastening piece 1 is determined, namely the fastening piece 1 and the adaptive threaded sleeve 2 are installed, the fixing threaded sleeve 4 is tightly supported by rotating the compression screw 32, and in the process, as the elastic groove 41 is formed in the side wall of the fixing threaded sleeve 4, after the compression screw 32 is tightly supported on the fixing threaded sleeve 4, the fixing threaded sleeve 4 can be hooped and tightly pressed on the fastening piece 1, so that the friction between the fixing threaded sleeve 4 and the fastening piece 1 is increased, and the fixing threaded sleeve can be prevented from rotating relative to the chuck sleeve 3 in the process of turning the screwing-off groove 11.

In this embodiment, the tail end of the fastener 1 extends out of the second end of the chuck sleeve 3, the second end of the chuck sleeve 3 is configured with a stop collar 6, and the tail end of the fastener 1 is distributed between the stop collar 6 and the second end of the chuck sleeve 3; a limiting post 7 is embedded in the limiting sleeve 6, and the limiting sleeve 6 is in threaded connection with the limiting post 7; the outer diameter of the stop collar 6 is smaller than the outer diameter of the chuck sleeve 3. Further, the inner diameter of the stop collar 6 is larger than the outer diameter of the tail end of the fastener 1. As shown in figure 1, when the tool is used, the distance between the end face of the limiting column 7 and the chuck sleeve 3 can be limited by adjusting the limiting column 7, so that the fastener 1 is installed through the limiting column 7 as a reference point, a worker can conveniently and quickly determine the installation position of the same batch of fasteners 1 with the same specification, the machining efficiency is improved, the assembly precision is improved, and the machining quality of products is improved.

In the utility model, the limiting sleeve 6 is connected with the second end face of the chuck sleeve 3 through the pull rod 5.

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

Claims

1. The utility model provides an aerospace fastener turning clamping device which characterized in that: the clamp comprises a chuck sleeve (3), wherein an adaptive threaded sleeve (2) is detachably arranged at the first end of the chuck sleeve (3), and a fastener (1) is embedded in the adaptive threaded sleeve (2) and is in threaded connection with the adaptive threaded sleeve;

the outer diameter of the chuck sleeve (3) is larger than that of the adaptive threaded sleeve (2);

the chuck sleeve (3) is coaxial with the adaptive threaded sleeve (2).

2. The aerospace fastener turning and clamping device as claimed in claim 1, wherein: the fixing device is characterized by further comprising a fixing threaded sleeve (4) which is sleeved outside the fastener (1) and is in threaded connection with the fastener, the fixing threaded sleeve (4) is embedded in the chuck sleeve (3), and the fixing threaded sleeve (4) is distributed away from the first end of the chuck sleeve (3);

a plurality of screw holes (31) are uniformly distributed on the side wall of the chuck sleeve (3) in the circumferential direction around the fastening piece (1), and the screw holes (31) penetrate through the side wall of the chuck sleeve (3); a compression screw (32) is connected with the inner thread of the screw hole (31);

the compression screw (32) can be in contact with or separated from the fixing threaded sleeve (4) in a manner of rotating around the axis of the compression screw in the screw hole (31).

3. The aerospace fastener turning and clamping device as claimed in claim 2, wherein: a plurality of elastic grooves (41) are arranged on the side wall of the fixed threaded sleeve (4) in a penetrating manner;

the elastic grooves (41) are uniformly distributed around the circumference of the fixed threaded sleeve (4).

4. The aerospace fastener turning and clamping device according to any one of claims 1-3, wherein: the tail end of the fastener (1) extends out of the second end of the chuck sleeve (3), the second end of the chuck sleeve (3) is provided with a limiting sleeve (6), and the tail end of the fastener (1) is distributed between the limiting sleeve (6) and the second end of the chuck sleeve (3);

a limiting column (7) is embedded in the limiting sleeve (6), and the limiting sleeve (6) is in threaded connection with the limiting column (7);

the outer diameter of the limiting sleeve (6) is smaller than that of the chuck sleeve (3).

5. The aerospace fastener turning and clamping device as claimed in claim 4, wherein: the inner diameter of the limiting sleeve (6) is larger than the outer diameter of the tail end of the fastener (1).

6. The aerospace fastener turning and clamping device as claimed in claim 4, wherein: the limiting sleeve (6) is connected with the second end face of the chuck sleeve (3) through a pull rod (5).

7. The aerospace fastener turning and clamping device as claimed in claim 1, wherein: the adaptive threaded sleeve (2) is embedded in the first end of the chuck sleeve (3) and is in threaded connection with the chuck sleeve (3).