CN113941972B

CN113941972B - Round shaft pipe fitting fastener

Info

Publication number: CN113941972B
Application number: CN202010679454.1A
Authority: CN
Inventors: 张广涛; 张晋源; 杨志宇; 刘鑫旭; 张春雨; 姜铁程
Original assignee: Shenyang Siasun Robot and Automation Co Ltd
Current assignee: Shenyang Siasun Robot and Automation Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2023-03-24
Anticipated expiration: 2040-07-15
Also published as: CN113941972A

Abstract

The invention relates to fastening equipment, in particular to a round shaft pipe fitting fastener. Comprises a driving mechanism a and a fastener b; the fastener b comprises an outer ring sleeve, a sliding groove seat and a plurality of sliding blocks, wherein the outer ring sleeve is arranged on the outer side of the sliding groove seat and is rotatably connected with the sliding groove seat; the driving mechanism a is arranged on the outer ring sleeve and is in sliding connection with the sliding groove seat, the driving mechanism a is used for driving the sliding groove seat to rotate, and the sliding groove seat drives the sliding blocks to radially slide relative to the outer ring sleeve, so that the fastening opening is tightened and amplified. The invention can efficiently solve the problem of fastening circular shaft tubular parts in various devices, is fast screwed and is suitable for working conditions with narrow space.

Description

Round shaft pipe fitting fastener

Technical Field

The invention relates to fastening equipment, in particular to a round shaft pipe fitting fastener.

Background

In the case that some conventional mechanical equipment needs to be screwed down on a tubular part of a round shaft, a section of a process platform is usually selected to be machined on the shaft for clamping, and the scheme is only suitable for a structure with enough installation space and the part has enough rigidity. The market also has some pipe inlays that are used for aiming at the fastening of round axle tubular part, and this kind of instrument defect is many, mainly embodies two places line contact between two chucks and the by the holder, can drive by the holder rotation by producing great frictional force, and excessive power can make by the holder produce irreversible plastic deformation again, destroys by the holder appearance.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a circular shaft pipe fastener, which can efficiently solve the fastening problem of circular shaft pipe parts in various devices, can be quickly tightened, and is suitable for working conditions with narrow space.

In order to achieve the purpose, the invention adopts the following technical scheme:

a round shaft pipe fitting fastener comprises a driving mechanism and a fastener;

the fastener comprises an outer ring sleeve, a sliding groove seat and a plurality of sliding blocks, wherein the outer ring sleeve is arranged on the outer side of the sliding groove seat and is rotatably connected with the sliding groove seat;

the driving mechanism is arranged on the outer ring sleeve and is in sliding connection with the sliding groove seat, the driving mechanism is used for driving the sliding groove seat to rotate, and the sliding groove seat drives the sliding blocks to radially slide relative to the outer ring sleeve, so that tightening and amplification of the fastening port are achieved.

The sliding block is of a conical structure and comprises a sliding surface and a driving surface, the sliding surface and the driving surface form an acute angle, and the front end of the driving surface is provided with driving teeth;

the front end of the sliding surface of one of the two adjacent sliding blocks is in sliding fit with the rear end of the driving surface of the other sliding block; the driving teeth of the sliding blocks are encircled to form the fastening opening.

A plurality of sliding grooves are formed in the sliding groove seat along the circumferential direction, and a sliding plate accommodated in the sliding grooves is arranged on one side of the sliding block.

The sliding groove is a straight groove arranged along the chord direction.

The other end is connected with the sliding plate accommodated in the sliding chute; the tension spring enables the sliding block to be in a release position through elastic force.

A plurality of guide grooves are formed in the outer ring sleeve along the circumferential direction, and each guide groove is a strip-shaped groove extending along the radial direction; and a guide pin II accommodated in the guide groove is arranged on the other side of the sliding block.

And the end part of the guide pin II is connected with an axial check ring for axial limiting.

The driving mechanism comprises a handle I and a handle II, and the handle I and the handle II are hinged through a hinge pin to form a scissor structure; the connecting end of the handle II is fixedly connected with the outer ring sleeve, the connecting end of the handle I is provided with a guide pin I, and the guide pin I is in sliding fit with the sliding groove seat and drives the sliding groove seat to rotate through the handle I.

The sliding groove seat is provided with a driving groove, and the guide pin I is in sliding fit with the driving groove.

The outer ring sleeve is connected with the sliding groove seat through a sealing bearing.

The invention has the advantages and beneficial effects that:

the invention can effectively solve the problem of fastening round shaft pipe fittings, and because six surfaces uniformly apply force during working, uniform radial force is generated on the parts, and plastic deformation caused by nonuniform force application is avoided.

The invention has compact structure and wide application range.

Drawings

FIG. 1 is a schematic structural view of a round shaft tube fastener according to the present invention;

FIG. 2 is a schematic view of the driving mechanism of the present invention;

FIG. 3 is a schematic view of the structure of the fastener of the present invention;

FIG. 4 is a top view of a fastener of the present invention;

FIG. 5 is a schematic view of the installation of the slider of the present invention;

FIG. 6 is a schematic view showing the operation of the round shaft tube fastener of the present invention;

FIG. 7 is a schematic view showing the clamped state of the round shaft tube member fastener of the present invention.

In the figure: the device comprises a handle I1, a handle II 2, an anti-abrasion gasket 3, a hinge pin 4, a shaft circlip 5, a guide pin I6, an axial circlip 7, an outer ring sleeve 8, a guide pin II 9, a slide block 10, a slide face 101, a driving tooth 102, a driving face 103, a slide plate 11, a tension spring 12, a sliding groove seat 13, a sealing bearing 14, a hole circlip 15, a guide groove 16, a driving groove 17, a sliding groove 18, an ear seat 19, a round shaft pipe 20, a fastening opening 21, a driving mechanism a, a fastener b, a force application direction F and a rotation direction M.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 and 3, the invention provides a round shaft tube fastener, which comprises a driving mechanism a and a fastener b; the fastener b comprises an outer ring sleeve 8, a sliding groove seat 13 and a plurality of sliding blocks 10, wherein the outer ring sleeve 8 covers the outer side of the sliding groove seat 13 and is rotatably connected with the sliding groove seat 13, the plurality of sliding blocks 10 are circumferentially arranged between the outer ring sleeve 8 and the sliding groove seat 13, two sides of each sliding block 10 are respectively connected with the sliding groove seat 13 and the outer ring sleeve 8 in a sliding manner, and two adjacent sliding blocks 10 are in sliding fit with each other, so that a fastening opening 21 is formed inside; the driving mechanism a is arranged on the outer ring sleeve 8 and is in sliding connection with the sliding groove seat 13, the driving mechanism a is used for driving the sliding groove seat 13 to rotate, and the sliding groove seat 13 drives the sliding blocks 10 to radially slide relative to the outer ring sleeve 8, so that the fastening opening 21 is tightened and amplified.

In the embodiment of the invention, as shown in fig. 4 and 5, the slider 10 is a conical structure, and comprises a sliding surface 101 and a driving surface 103, wherein the sliding surface 101 and the driving surface 103 form an acute angle, and the front end of the driving surface 103 is provided with a driving tooth 102; the front end of the sliding surface 101 of one of the two adjacent sliders 10 is in sliding fit with the rear end of the driving surface 10 of the other slider 10; the drive teeth 102 of the plurality of sliders 10 enclose a fastening opening 21.

In the embodiment of the present invention, as shown in fig. 3 and 5, a plurality of sliding grooves 18 are circumferentially formed on the sliding groove seat 13, and one side of the sliding block 10 is provided with a sliding plate 11 accommodated in the sliding groove 18. Specifically, the slide groove 18 is a straight groove that is open in the chord direction.

On the basis of the above embodiment, as shown in fig. 5, each sliding slot 18 is provided with a tension spring 12, one end of each tension spring 12 is connected with the sliding slot 18, and the other end is connected with the sliding plate 11 accommodated in the sliding slot 18; the tension spring 12 elastically keeps the slider 10 in the release position.

In the embodiment of the present invention, as shown in fig. 3, a plurality of guide grooves 16 are circumferentially formed on the outer ring sleeve 8, and each guide groove 16 is a strip-shaped groove extending in the radial direction; the other side of the slide block 10 is provided with a guide pin II 9 accommodated in the guide groove 16.

Furthermore, an axial retaining ring 7 for axial limiting is connected to the end of the guide pin II 9, and the axial retaining ring 7 prevents the guide pin II 9 from being separated from the guide groove 16.

In the embodiment of the invention, as shown in fig. 2, the driving mechanism a comprises a handle I1 and a handle II 2, wherein the handle I1 and the handle II 2 are hinged through a hinge pin 4 and locked by an elastic collar 5 for a shaft, so that a scissor structure is formed; to avoid friction between the handles, an anti-wear washer 3 is placed between the handles. Handle II 2's link and the ear seat 19 fixed connection that is equipped with on the outer loop cover 8, handle I1's link is equipped with uide pin I6, and uide pin I6 and spout seat 13 sliding fit rotate through handle I1 drive spout seat 13.

As shown in FIG. 1, the end face of the chute base 13 is provided with a driving groove 17, and the guide pin I6 is in sliding fit with the driving groove 17. As shown in fig. 3, the outer ring sleeve 8 and the sliding groove seat 13 are connected by a seal bearing 14, and the sliding plate 11 is an oil-free linear sliding plate.

In the embodiment of the invention, six sliding blocks 10 are included, the six sliding blocks 10 are sequentially inserted into six sliding grooves 18 on a sliding groove seat 13 through six groups of sliding plates 11, and pulling hooks at two ends of a tension spring 12 are required to be sleeved on a sliding groove seat upright post and a sliding block upright post during insertion. The sealed bearing 14 is pressed into the outer ring sleeve 8, and the hole is locked by the elastic retainer ring 15 to prevent the sealed bearing 14 from axially moving. As shown in FIG. 4, the guide grooves 16 of the outer sleeve 8 are sequentially aligned with the guide pins II 9, and the outer sleeve 8 and the chute seat 13 are pressed against each other. Three axial retaining rings 7 are fixed to the three guide pins ii 9, locking the axial displacement of the outer collar 8 and the sliding groove seats 13. As shown in fig. 1, the guide pin I6 is screwed along the driving groove 17 of the chute seat 13, and the handle II 2 and the outer ring sleeve 8 are tightly fastened together by screws.

The working principle of the invention is as follows:

as shown in figure 1, the slide block 10 is under the tension of a tension spring 12, and the guide pin I6 is always at the initial limit point. As shown in fig. 6, during operation, the power source applies force in the force application direction F, the guide pin i 6 slides along the driving groove 17 on the sliding groove seat 13, the outer ring sleeve 8 and the sliding groove seat 13 are screwed in the counterclockwise direction, the slider 10 moves linearly along the sliding groove 18 of the sliding groove seat 13, and simultaneously the guide pin ii 9 moves along the guide groove 16, the fastening openings 21 formed by the six sliders 10 contract until contacting the circular shaft pipe 20, and the circular shaft pipe 20 rotates in the torsion direction after being clamped, as shown in fig. 7. After the operation is finished, the handle I1, the handle II 2 and the guide pin I6 are loosened to return to the initial limit point.

The fastening device for the round shaft pipe fitting parts has a compact structure and a wide application range, and six surfaces can be uniformly applied with force and screwed and clamped; the structure of the invention restrains the effective stroke, and the device can automatically return to the original position when in use, and is fast and efficient to fasten.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A round shaft pipe fitting fastener is characterized by comprising a driving mechanism (a) and a fastener (b);

the fastener (b) comprises an outer ring sleeve (8), a sliding groove seat (13) and a plurality of sliding blocks (10), wherein the outer ring sleeve (8) is covered on the outer side of the sliding groove seat (13) and is rotatably connected with the sliding groove seat (13), the sliding blocks (10) are arranged between the outer ring sleeve (8) and the sliding groove seat (13) along the circumferential direction, two sides of each sliding block (10) are respectively connected with the sliding groove seat (13) and the outer ring sleeve (8) in a sliding mode, and two adjacent sliding blocks (10) are matched in a sliding mode, so that a fastening opening (21) is formed in the inner side;

the driving mechanism (a) is arranged on the outer ring sleeve (8) and is in sliding connection with the sliding groove seat (13), the driving mechanism (a) is used for driving the sliding groove seat (13) to rotate, and the sliding groove seat (13) drives the sliding blocks (10) to radially slide relative to the outer ring sleeve (8), so that the fastening opening (21) is tightened and enlarged;

the sliding block (10) is of a conical structure and comprises a sliding surface (101) and a driving surface (103), the sliding surface (101) and the driving surface (103) form an acute angle, and the front end of the driving surface (103) is provided with a driving tooth (102);

the front end of the sliding surface (101) of one of the two adjacent sliding blocks (10) is in sliding fit with the rear end of the driving surface (103) of the other sliding block (10); the driving teeth (102) of the sliding blocks (10) are encircled to form the fastening opening (21);

the driving mechanism (a) comprises a handle I (1) and a handle II (2), and the handle I (1) and the handle II (2) are hinged through a hinge pin (4) to form a scissor structure; the link of handle II (2) with outer ring cover (8) fixed connection, the link of handle I (1) is equipped with uide pin I (6), uide pin I (6) with spout seat (13) sliding fit, through the rotation of handle I (1) drive spout seat (13).

2. The round shaft pipe fitting fastener according to claim 1, wherein the sliding groove seat (13) is provided with a plurality of sliding grooves (18) along the circumferential direction, and one side of the sliding block (10) is provided with a sliding plate (11) accommodated in the sliding grooves (18).

3. The round shaft tube fastener according to claim 2, wherein the slide groove (18) is a straight groove that is open in the chord direction.

4. The round shaft pipe fitting fastener according to claim 2, wherein each sliding slot (18) is provided with a tension spring (12), one end of each tension spring (12) is connected with the sliding slot (18), and the other end of each tension spring is connected with the sliding plate (11) accommodated in the sliding slot (18); the tension spring (12) enables the sliding block (10) to be in a release position through elastic force.

5. The round shaft tube fastener according to claim 1, wherein the outer collar (8) is provided with a plurality of guide grooves (16) along the circumferential direction, and each guide groove (16) is a radially extending strip-shaped groove; the other side of the sliding block (10) is provided with a guide pin II (9) accommodated in the guide groove (16).

6. The round shaft fastener according to claim 5, wherein an axial retainer ring (7) for axial retention is attached to the end of the guide pin II (9).

7. The round shaft fastener according to claim 1, wherein the sliding groove seat (13) is provided with a driving groove (17), and the guide pin I (6) is in sliding fit with the driving groove (17).

8. The round shaft tube fastener according to claim 1, wherein the outer collar (8) and the runner base (13) are connected by a seal bearing (14).