CN219388392U - TC16 titanium alloy cold heading forming fastener - Google Patents

Abstract

The utility model discloses a TC16 titanium alloy cold heading forming fastener which comprises a core rod, wherein one end of the core rod is provided with a first thread head, a hexagon head is sleeved on the first thread head, a sealing piece for limiting the hexagon head is sleeved on the first thread head in a threaded manner, and the sealing piece is rotationally embedded in the hexagon head and is in sealing arrangement; the other end of the core rod is provided with a second thread head, and a nut is sleeved on the second thread head in a threaded manner. According to the utility model, the hexagonal head is sleeved on the first threaded head, the hexagonal head is fastened through the sealing piece, so that the hexagonal head and the core rod form a bolt body, and then the second threaded head and the nut are arranged to form a complete fastener for use.

Description

TC16 titanium alloy cold heading forming fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to a TC16 titanium alloy cold heading forming fastener.

Background

Bolts are a type of fastener consisting of a head and a shank, and are commonly used in combination with nuts for fastening two mechanical parts with through holes. The cold heading process is a processing method which uses plastic deformation of metal under the action of external force, and uses a die to redistribute and transfer the volume of metal so as to form the required part or blank. The cold heading process is most suitable for producing standard fasteners such as bolts, screws, nuts, rivets, pins and the like. Existing cold-formed fasteners have been able to substantially meet the needs of everyday use, but there are still some shortcomings to be improved.

Patent document CN202326639U proposes a bolt-nut fastener, which comprises: the bolt consists of a bolt head and a screw rod which are connected, and the tail end of the screw rod of the bolt is provided with a groove I; the nut is provided with a groove II; after the groove I is aligned with the groove II, a pin block for preventing the nut from rotating is arranged in the groove I; the widths of the groove I and the groove II are equal; at least two grooves II are formed in the nut; according to the bolt-nut fastener, the groove I is formed in the tail end of the screw rod of the bolt, the groove II is formed in the nut, and the pin block is inserted after the groove I and the groove II are aligned, so that the nut can be prevented from being rotated to be separated from the bolt due to vibration, the working performance and the working stability of the machine are improved, and the occurrence probability of personal accidents is reduced.

Obviously, after the existing bolt is connected with the nut through the screw rod part, part of the screw rod is directly exposed to the outside, then under long-term external environment erosion, the connecting position of the screw rod and the nut is easy to rust and difficult to separate again, so that the subsequent fastener is troublesome to detach, and therefore, a TC16 titanium alloy cold heading forming fastener is needed to solve the problems.

Disclosure of Invention

The utility model aims to provide a TC16 titanium alloy cold heading forming fastener which solves the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the TC16 titanium alloy cold heading forming fastener comprises a core rod, wherein one end of the core rod is provided with a first thread head, a hexagon head is sleeved on the first thread head, a sealing piece for limiting the hexagon head is sleeved on the first thread head in a threaded manner, and the sealing piece is rotationally embedded in the hexagon head and is in sealing arrangement; the other end of the core rod is provided with a second thread head, and a nut is sleeved on the second thread head in a threaded manner.

Preferably, a connecting groove is formed in the hexagon head, the sealing piece is embedded into the connecting groove, and a sealing sleeve is arranged between the outer wall of the sealing piece and the inner wall of the connecting groove.

Preferably, the closure member is provided with a hexagonal recess.

Preferably, a through hole matched with the first thread head is formed in the hexagon head, a plurality of protruding blocks are arranged on the inner wall of the through hole, and a chute matched with the protruding blocks is formed in the outer wall of the first thread head.

Preferably, a sealing ring sleeved on the first thread head is arranged between the core rod and the hexagonal head.

Preferably, the core rod, the first thread head and the second thread head are integrally formed by cold heading.

Preferably, a clamping opening is formed in the outer wall of the core rod.

In the technical scheme, the utility model has the beneficial effects that:

this TC16 titanium alloy cold heading shaping fastener establishes on first screw thread head through setting up the hexagon head cover, and fasten the hexagon head through the closure piece, make hexagon head and core bar constitute the bolt body, rethread second screw thread head and the setting of nut, constitute complete fastener and use, after this fastener is in external long-term use, the second screw thread head is because of exposing outside and easily taking place the corrosion, cause the nut to be difficult to dismantle, and because the seal between fastener and the hexagon head, first screw thread head is difficult for corrosion, then can dismantle the closure piece with first screw thread head earlier, dismantle the hexagon head again, thereby reverse dismantlement this fastener, the practicality has been improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure according to an embodiment of the present utility model;

fig. 3 is a schematic top view of a cross-sectional structure according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a core bar; 2. a first thread head; 3. a hexagonal head; 4. a closure; 5. a second thread head; 6. a nut; 7. a connecting groove; 8. sealing sleeve; 9. hexagonal grooves; 10. a through hole; 11. a bump; 12. a chute; 13. a seal ring; 14. and (5) clamping the mouth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Referring to fig. 1-3, the TC16 titanium alloy cold heading forming fastener provided by the embodiment of the utility model comprises a core bar 1, wherein one end of the core bar 1 is provided with a first thread head 2, a hexagonal head 3 is sleeved on the first thread head 2, a sealing piece 4 limiting the hexagonal head 3 is sleeved on the first thread head 2 in a threaded manner, and the sealing piece 4 is rotationally embedded in the hexagonal head 3 and is in sealing arrangement; the other end of the core rod 1 is provided with a second thread head 5, and a nut 6 is sleeved on the second thread head 5 in a threaded manner.

Specifically, the core rod 1 is generally cylindrical, and the outer diameter of the core rod 1 is not smaller than the outer diameters of the first thread head 2 and the second thread head 5; the first thread head 2 and the second thread head 5 are coaxial with the core bar 1; the first thread head 2 is inserted into the hexagonal head 3; the sealing piece 4 is connected with the first thread head 2 inserted into the hexagonal head 3 to limit the relative position between the core rod 1 and the hexagonal head 3, so that the core rod 1 and the hexagonal head 3 form a bolt body; the second thread head 5 is the outer screw part of the screw bolt body; the nut 6 is provided with an integrated washer. In the practical use of this technical scheme, first screw thread head 2 inserts in the hexagon head 3, closure 4 imbeds in the hexagon head 3 and connects first screw thread head 2 in order to spacing between core bar 1 and the hexagon head 3, the bolt body is constituteed to core bar 1 and hexagon head 3, let through second screw thread head 5 and nut 6's setting again, constitute complete fastener and use, after this fastener is used for a long time in the external world, second screw thread head 5 is easy to rust out because of exposing, cause its and nut 6 junction corrosion, make nut 6 be difficult to dismantle, and because the sealed setting between closure 4 and the hexagon head 3, make first screw thread head 2 be difficult for corrosion, then can dismantle closure 4 rotation first with first screw thread head 2, thereby cancel spacing to hexagon head 3, dismantle hexagon head 3 from core bar 1 again, realize reverse dismantlement this fastener, not influenced by nut 6 that is difficult to dismantle, and the practicality is improved.

Compared with the prior art, the TC16 titanium alloy cold heading forming fastener provided by the embodiment of the utility model is sleeved on the first thread head 2 by arranging the hexagonal head 3, and the hexagonal head 3 is fastened by the sealing piece 4, so that the hexagonal head 3 and the core rod 1 form a bolt body, and then the second thread head 5 and the nut 6 are arranged to form a complete fastener for use.

As a preferred technical scheme of the embodiment, a connecting groove 7 is arranged in the hexagon head 3, a sealing sleeve 8 is arranged between the outer wall of the sealing element 4 and the inner wall of the connecting groove 7, and specifically, the shape of the connecting groove 7 is matched with that of the sealing element 4, the inner diameter of the connecting groove 7 is not smaller than the outer diameter of the sealing element 4, one end of the connecting groove 7 is communicated with the end face of the hexagon head 3 and is provided with an annular flange, the inner diameter of the annular flange is matched with the outer diameter of the sealing element 4, and the annular flange limits the sealing sleeve 8; the sealing sleeve 8 is used for preventing external moisture and dust impurities from invading the joint between the first thread head 2 and the sealing piece 4, and ensuring that the thread joint between the first thread head 2 and the sealing piece 4 is smooth.

As a preferred technical solution of this embodiment, the sealing member 4 is provided with a hexagonal groove 9, specifically, by inserting an internal hexagonal wrench into the hexagonal groove 9, and then rotating the sealing member 4 under the restriction of rotation of the hexagonal head 3 by using a tool such as a wrench, the sealing member 4 and the first screw head 2 can be threaded to disassemble the sealing member 4, and then the hexagonal head 3 can be disassembled to leave the core rod 1.

As a preferred technical solution of the present embodiment, a through hole 10 matching with the first thread head 2 is provided in the hexagon head 3, a plurality of protruding blocks 11 are provided on the inner wall of the through hole 10, a chute 12 matching with the protruding blocks 11 is provided on the outer wall of the first thread head 2, specifically, the inner diameter of the through hole 10 matches with the outer diameter of the first thread head 2, therefore, the inner diameter of the through hole 10 is smaller than the outer diameter of the sealing member 4, and the sealing member 4 can fit the core rod 1 to clamp the limiting hexagon head 3; the arrangement of the lug 11 and the chute 12 enables torque transmission between the hexagonal head 3 and the first screw head 2 on the one hand, and enables the hexagonal head 3 to be slidingly detached from the first screw head 2 on the other hand.

As a preferred technical scheme of this embodiment, be provided with between core bar 1 and the hexagon head 3 and overlap the sealing washer 13 of establishing on first screw thread head 2, specifically, the setting of through-hole 10 forms the gap between core bar 1 and hexagon head 3 and easily communicates to the junction between first screw thread head 2 and the closure 4, and the setting of sealing washer 13 can closely laminate core bar 1 and hexagon head 3 when closure 4 fastens spacing hexagon head 3 to sealed through-hole 10, further guarantee the sealing of junction between first screw thread head 2 and closure 4, guarantee that the threaded connection between first screw thread head 2 and the closure 4 is smooth.

As a preferred technical scheme of the embodiment, the core rod 1, the first thread head 2 and the second thread head 5 are manufactured by cold heading integrally, and specifically, the core rod 1, the first thread head 2 and the second thread head 5 are manufactured by cold heading a rod piece made of TC16 titanium alloy; the integrated core bar 1, the first thread head 2 and the second thread head 5 which are manufactured by cold heading are blank bars, and the threads and the grooves on the blank bars are manufactured by subsequent processing.

As a preferred technical scheme of this embodiment, be provided with the clamp 14 on the core bar 1 outer wall, specifically, after the hexagonal head 3 is dismantled from core bar 1, this fastener also is dismantled from mechanical equipment, and at this moment, can limit core bar 1 rotation with the help of clamp 14, again after convenient scribbling lubricating oil on second screw thread head 5, or beat the vibration to nut 6 after, just can dismantle nut 6 smoothly, make this fastener repeatedly usable after repairable.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (7)

1. The TC16 titanium alloy cold heading forming fastener is characterized by comprising a core bar (1), wherein one end of the core bar (1) is provided with a first thread head (2), a hexagonal head (3) is sleeved on the first thread head (2), a sealing piece (4) limiting the hexagonal head (3) is sleeved on the first thread head (2) in a threaded manner, and the sealing piece (4) is rotationally embedded in the hexagonal head (3) and is in sealing arrangement; the other end of the core rod (1) is provided with a second thread head (5), and a nut (6) is sleeved on the second thread head (5) in a threaded manner.

2. The TC16 titanium alloy cold heading forming fastener according to claim 1, wherein a connecting groove (7) is formed in the hexagonal head (3), the sealing piece (4) is embedded in the connecting groove (7), and a sealing sleeve (8) is arranged between the outer wall and the inner wall of the connecting groove (7).

3. The TC16 titanium alloy cold heading forming fastener of claim 1, wherein said closure (4) is provided with a hexagonal recess (9).

4. The TC16 titanium alloy cold heading forming fastener according to claim 1, wherein a through hole (10) matched with the first thread head (2) is arranged in the hexagonal head (3), a plurality of protruding blocks (11) are arranged on the inner wall of the through hole (10), and a sliding groove (12) matched with the protruding blocks (11) is formed on the outer wall of the first thread head (2).

5. The TC16 titanium alloy cold heading forming fastener according to claim 1, characterized in that a sealing ring (13) sleeved on the first thread head (2) is arranged between the core rod (1) and the hexagonal head (3).

6. The TC16 titanium alloy cold heading forming fastener of claim 1, wherein the core pin (1), first thread head (2) and second thread head (5) are integrally cold headed.

7. The TC16 titanium alloy cold heading forming fastener of claim 1, wherein a grip (14) is provided on an outer wall of the core pin (1).