CN2120645U

CN2120645U - Rolling automatic grade pipe expander

Info

Publication number: CN2120645U
Application number: CN 92214404
Authority: CN
Inventors: 杨宗兴
Original assignee: Individual
Current assignee: Yang Zongxing
Priority date: 1992-04-07
Filing date: 1992-04-07
Publication date: 1992-11-04

Abstract

The utility model relates to a rolling automatic grade pipe expander for expanding a metal pipe mouth into a bell mouth, and is composed of a force applying mechanism, a clamp mechanism, and an automatic grade separation mechanism. When the utility model is fixed to a T-slot at the lower part of a body by an expanding pipe through a clamp plate and the clamp mechanism, not only the autorotation but also the revolution of a cone body can be realized, while the cone body also has a down feed as long as a handle is rotated. Thus the rolling of the pipe mouth can be realized, when the certain depth is reached, that is to say, the bell mouth is molded, the rolling force of the cone body is bigger than the frictional force between grade separation pins. The grade separation pins are separated and generate the disengaging of the gear to delimit the depth of an expanding pipe effectively. The utility model has the characteristics of reasonable structure, convenient use, high precision of the mouth expanding, etc.

Description

Rolling automatic grade pipe expander

The utility model relates to a kind of metal tube mouth of pipe shaped device, particularly relates to a kind of mouth of pipe with nonferrous metal tube and expands to the automatic tube expander out of supply of bell-mouthed rolling-type.

As everyone knows, traditional tube expander is by body, the screw mandrel of thread connection with it, constitute with the joining handle of screw mandrel and cone and in order to the clamping plate of clamping pipeline, purpose is to expand to the metal mouth of pipe tubaeform, this device is because of adopting the direct press type expander, so the bell mouth expanding low precision easily breaks, stability is bad, the expander degree of depth is wayward, directly influence product quality, in addition, because clamping plate by affixed butterfly nut degree of tightness on it, could be realized the loading and unloading of pipeline, it is wasted time and energy, and uses inconvenience.

The purpose of this utility model is to provide a kind of institute double over precision height, and can effectively control the automatic tube expander out of supply of rolling-type of its expander degree of depth automatically.

The purpose of this utility model is to realize like this, that is: the automatic tube expander out of supply of this rolling-type, comprise body and handle, its key is in the center screw on body top, be connected with a cover, the middle part is embedded with a sliding bearing, a clamping device is equipped with in the following side, the clamping plate side is fixed on by clamping device in the T type groove of body bottom, and the inner chamber at cover is equipped with spring successively, packing ring, vicarious and the axle of thrust ball, one end and the handle of axle are affixed, the other end is equipped with sliding bearing successively, jump ring, thrust ball bearing and cone, in addition, in the joint portion of handle and cover, be provided with an automatic mechanism out of supply.

Accompanying drawing is a general structure schematic diagram of the present utility model.

Below with reference to accompanying drawing concrete structure of the present utility model and working condition are further described.

Referring to accompanying drawing, the automatic tube expander out of supply of the utility model rolling-type, comprise body 13 and handle 1, its key is in the center screw of body 13, be connected with a cover 6, the middle part is embedded with a sliding bearing 11, a clamping device is equipped with in the following side, clamping plate 19 are fixed in the T type groove of body bottom by clamping device, at cover 6 inner chambers spring 7 is housed successively, packing ring 8, thrust ball bearing 9 and axle 5, one end of axle 5 is equipped with resilient key 4 and affixed with handle, and the other end is equipped with sliding bearing 17 successively, thrust ball bearing 12, jump ring 10 and cone 16, in addition, at handle 1 and cover 6 joint portions an automatic mechanism out of supply is housed.

Between the axial line of described cone 1 and axle 5 axial lines one angle is arranged, generally be advisable with the 5-12 degree.

Described automatic mechanism out of supply is made up of spring 2, pin out of supply 3, and the faying face that is divided in the pin out of supply 3 in handle and the cover is two inclined-planes that match.

There is a hole described cover 6 upper ends, and all there is the one-level step on its inside and outside surface, and external screw thread is arranged at the bottom.

Described clamping device is by bolt 15 and connect with it and boosting-rod 14 is formed.

Described clamping plate 19 involute by two, one end is hinged, and the other end is pegged graft by alignment pin and located, and clamping plate are provided with one group of hole that differs in size, its aperture is according to the design of the caliber of institute's expander, with the position of these holes 90 degree on be provided with one group of equal-sized pit.

According to the course of work of the above-mentioned automatic tube expander out of supply of rolling-type that assembles such as following.

When institute expander road 18 is contained in the T type groove of body 13 bottoms by clamping plate 19 and clamping device after, rotary handle 1, just make axle 5 and 16 rotations of joining cone, order about cover 6 rotations downwards by pin 3 out of supply simultaneously, and then make spring 7 compressing axle 5 downward, when axle 5 drops to a certain degree, promptly when cone one side and pipeline one side contacts, cone is just again around self axis rotation, cone is this both with axle 5 revolution, around the feeding process of self axis rotation, has just formed the roll extrusion to the pipeline oral area again, when cone roll extrusion pipeline to the position that needs is that horn mouth is shaped when putting in place, the roll extrusion power of cone will be greater than the frictional force between pin out of supply, and pin out of supply just separates out of supply, and handle is rotated counterclockwise certain angle, pin 3 out of supply resets under the effect of spring 2, at this moment, counter-rotating handle 1, cone just withdraws from the mouth of pipe, take off clamping plate, expander is finished.

The utility model compared with prior art, owing to be provided with the automatic trip gear mechanism, the expander degree of depth is controlled, owing to adopt the rolling-type expander, make horn mouth precision height, and fracture phenomena can not appear, because the bolt of clamping device presses closer the expansion tube department of clamping plate one side, effectively improved the rigidity of clamping plate, in addition, because two clamping plate that involute one ends are hinge-coupled, the other end is provided with alignment pin, so accurate positioning, mounting or dismounting pipeline make things convenient for, save time, laborsaving, expander precision and operating efficiency have been improved greatly.

Claims

1, the automatic tube expander out of supply of a kind of rolling-type, comprise body and handle, it is characterized in that in the center screw of body 13, be connected with a cover 6, the middle part is embedded with a sliding bearing 11, a clamping device is equipped with in the following side, clamping plate 19 are fixed in the T type groove of body bottom by clamping device, at cover 6 inner chambers spring 7 is housed successively, packing ring 8, thrust ball bearing 9 and axle 5, one end of axle 5 is equipped with resilient key 4 and affixed with handle 1, the other end is equipped with sliding bearing 17 successively, thrust ball bearing 12, jump ring 10 and cone 16, in addition, in the joint portion of handle 1 and cover 6, an automatic mechanism out of supply is housed.

2,, it is characterized in that between the axial line of cone 1 and axle 5 axial line one angle being arranged according to the automatic tube expander out of supply of the described rolling-type of claim 1.

3,, it is characterized in that automatic mechanism out of supply is made up of spring 2, pin out of supply 3 according to the automatic tube expander out of supply of the described rolling-type of claim 1.

4, according to claim 1, the automatic tube expander out of supply of 3 described rolling-types, it is characterized in that pin 3 out of supply is divided in handle 1 and the cover 6, the faying face of two pins out of supply is two inclined-planes that match.

5, according to the automatic tube expander out of supply of the described rolling-type of claim 1, it is characterized in that overlapping 6 upper ends has a hole, and its surfaces externally and internally all has the one-level step, and external screw thread is arranged at the bottom.

6, according to the automatic tube expander out of supply of the described rolling-type of claim 1, it is characterized in that clamping plate 19 involute by two, an end is hinged, and the other end is pegged graft by alignment pin, clamping plate are provided with one group of hole that differs in size, and are provided with one group of equal-sized pit on the position that becomes 90 degree with these holes.