WO2015032227A1

WO2015032227A1 - Single module positioning and guiding mechanism

Info

Publication number: WO2015032227A1
Application number: PCT/CN2014/079476
Authority: WO
Inventors: 张建军; 徐伟; 陈文宝; 赵东; 盛金
Original assignee: 无锡双友石化机械有限公司
Priority date: 2013-09-05
Filing date: 2014-08-21
Publication date: 2015-03-12
Also published as: RU172990U1; CN103447398B; CN103447398A

Abstract

A single module positioning and guiding mechanism, characterized in: comprising a pull rod (14), the outer circumference of the pull rod (14) being provided with a cone (1); installed via long T-shaped keys (4) on the outer circumference of the cone (1) is a module (5) that cooperates and slides with the cone; the cone (1) and the module (5) are fixed on the long T-shaped keys (4) via fixing elements; also installed on the outer circumference of the pull rod (14) is a support ring (7); installed between an end surface of the support ring (7) and an end surface of the module (5) are short T-shaped keys (6); installed via a sliding block assembly (3) on the other end surface of the module (5) is a guiding ring (2); multiple T-shaped grooves (8) and square grooves (9) are provided on the ring surface of the guiding ring (2) in equal intervals. The guiding ring effectively ensures that the matching gaps between the T-shaped keys and the surface of the T-shaped grooves on the cone are even, and that the matching gaps between the short T-shaped keys and the T-shaped grooves of the support ring are even. The precision of the equal intervals between the long T-shaped keys, the T-shaped grooves on the cone, the T-shaped grooves on the support ring, and the module on the outer circumference having the pull rod as the axis are ensured. The guiding is effective, the operation reliability of an expanding head is enhanced, and the service life thereof is extended.

Description

Single module positioning guide mechanism

Technical field

The invention relates to the technical field of an expanding device, in particular to a single module positioning guiding mechanism for expanding a diameter head.

Background technique

At present, in the expansion equipment, the diameter expansion head is a key component in the expansion equipment. The expansion-producing tooling is equipped with a diameter-enhancing head, which occupies a limited space, and has a complicated shape and built-in structure. The fixed-length tooling is fixed to ensure uniform force of the expansion-diameter head and the force of the expansion-diameter head is: the axial movement of the tie rod is directly contacted with the steel pipe. The radial movement of the pipe wall module can eliminate the forming pressure generated during the forming process of the steel pipe and the welding stress generated during the welding, and ensure that the diameter of the full length section of the steel pipe is substantially the same.

In the prior art, the diameter expanding head comprises a plurality of workpieces such as a cone, a module, a long and short T-shaped key, a backing plate and an outer module, and is assembled into the expanding machine after completing the assembly. The following parts must be well lubricated: the contact surface of the module with the cone, the contact surface of the module with the slider. The pressure between the contact faces is large, and if the lubrication is poor, the wear is accelerated, and even the contact surface of the parts is damaged. In the prior art, there is no positioning device at the small end of the module, the guiding performance is poor, and the circumferential halving accuracy is not up to the optimal state that can be controlled, the use effect is poor, and the gap between the components cannot be guaranteed.

technical problem

The present applicant provides a structurally reasonable single module positioning guiding mechanism for the shortcomings of the above existing production techniques. Therefore, the expansion head has better positioning and guiding, and the gap between the sliding members is ensured, and the service life is prolonged.

Technical solution

The utility model relates to a single module positioning guiding mechanism, comprising a pull rod, a taper is mounted on an outer circumferential surface of the pull rod, and an outer circumferential surface of the cone is mounted with a module slidingly matched by a long T-shaped key, the cone and The module is fixed on the long T-shaped key by a fastener, and the outer circumferential surface of the pull rod is further mounted with a support ring, and a short T-shaped key is installed between one end surface of the support ring and one end surface of the module, the module The other end face is mounted with a guide ring through the slider assembly, and a plurality of T-shaped grooves and square grooves are evenly spaced on the annular surface of the guide ring.

As a further improvement of the above technical solution:

The slider assembly includes a square slider and a T-shaped slider, the square slider has a first bolt hole, and the T-shaped slider has a second bolt hole, the square slider And the T-shaped slider is fastened to the end face of the module by bolts;

The T-shaped groove opened by the guiding ring is matched with the T-shaped sliding block, and the square-shaped groove of the guiding ring is matched with the square-shaped sliding block.

Beneficial effect

The structure of the invention is reasonable and compact, and the function of the guiding ring effectively ensures the uniform matching gap between the long T-shaped key and the T-shaped groove contact surface of the cone, and the contact surface of the short T-shaped key and the supporting ring T-shaped groove. The matching gap between the two is evenly ensured, and the bisector precision of the long T-shaped key, the tapered T-shaped groove, the support ring T-shaped groove and the module on the outer circumferential surface with the tie rod as the axis is better ensured, and the guiding property is good. Improve the reliability of the expansion head and extend its service life.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

Figure 2 is a front elevational view of the guide ring of the present invention.

Figure 3 is a full cross-sectional view taken along line A-A of Figure 2;

Figure 4 is a front elevational view of the square slider of the present invention.

Figure 5 is a right side view of Figure 4.

Figure 6 is a front elevational view of the T-slider of the present invention.

Figure 7 is a right side view of Figure 6.

Among them: 1, cone; 2, guide ring; 3, slider assembly; 4, long T-key; 5, module; 6, short T-key; 7, support ring; 8, T-slot; Type groove; 10, square slider; 11, first bolt hole; 12, T-shaped slider; 13, second bolt hole; 14, tie rod.

Embodiments of the invention

As shown in FIG. 1 , the single module positioning guiding mechanism of the embodiment includes a pull rod 14 , and the outer circumferential surface of the pull rod 14 is mounted with a cone 1 , and the outer circumferential surface of the cone 1 is mounted and matched by a long T-shaped key 4 . The sliding module 5, the cone 1 and the module 5 are respectively fixed on the long T-shaped key 4 by fasteners, and the outer circumferential surface of the pulling rod 14 is further mounted with a supporting ring 7 , an end surface of the supporting ring 7 and an end surface of the module 5 A short T-key 6 is installed between the other end faces of the module 5, and the guide ring 2 is mounted on the other end face of the module 5, as shown in FIG. 2 and FIG. 3, evenly spaced on the annular surface of the guide ring 2. T-shaped grooves 8 and square grooves 9.

As shown in FIG. 4, FIG. 5, FIG. 6, and FIG. 7, the slider assembly 3 includes a square slider 10 and a T-shaped slider 12. The square slider 10 has a first bolt hole 11 and a T-shaped slider. A second bolt hole 13 is opened in the 12, and the square slider 10 and the T-shaped slider 12 are fastened to the end surface of the module 5 by bolts.

The T-shaped groove 8 opened by the guide ring 2 is fitted to the T-shaped slider 12, and the square groove 9 opened by the guide ring 2 is fitted to the square slider 10.

In actual use, due to the action of the guiding ring 2, the module 5 and the supporting ring 7, the outer circumferential surface of the tie rod 14 is combined into a closed guiding space. It effectively ensures that the matching gap between the long T-shaped key 4 and the T-groove contact surface of the cone 1 is uniform, and the matching gap between the short T-shaped key 6 and the T-shaped groove contact surface of the support ring 7 is uniform, High safety factor, good reliability, good guidance, and effective guarantee The bisector between the components mounted on the outer circumferential surface of the tie rod 14.

The above description is intended to be illustrative of the invention, and is not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the invention, and may be modified in any form within the scope of the invention.

Claims

A single module positioning guiding mechanism, comprising: a pulling rod (14), the outer circumferential surface of the pulling rod (14) is mounted with a cone (1), the cone ( The outer circumferential surface of 1) is mounted by a long T-shaped key (4) with a module (5) that slides therewith, and the cone (1) and the module (5) are both fixed to the long T-shaped key by fasteners (4) The support rod (7) is further mounted on the outer circumferential surface of the pull rod (14), and a short T-shaped key (6) is installed between an end surface of the support ring (7) and an end surface of the module (5). , the module ( On the other end face of 5), a guide ring (2) is mounted through the slider assembly (3), and a plurality of T-shaped grooves (8) and square grooves are evenly spaced on the annular surface of the guide ring (2) ( 9 ).
The unique module positioning guide mechanism according to claim 1, wherein said slider assembly (3) comprises a square slider (10) and a T-shaped slider (12). The square slider (10) is provided with a first bolt hole (11), and the T-shaped slider (12) is provided with a second bolt hole (13), the square slider (10) ) and T-slider ( 12) Fasten to the end face of the module ( 5 ) by bolts.
The single module positioning guiding mechanism according to claim 1 or 2, wherein the guiding ring (2) is opened with a T-shaped groove (8) and a T-shaped sliding block ( 12) In conjunction with the installation, the square groove (9) of the guide ring (2) is fitted with the square slider (10).