CN2505202Y

CN2505202Y - Screw-thread rolling tool capable of automatic expanding hob

Info

Publication number: CN2505202Y
Application number: CN 01256159
Authority: CN
Inventors: 马成伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-10
Filing date: 2001-10-10
Publication date: 2002-08-14
Anticipated expiration: 2011-10-10

Abstract

The utility model provides a screw-thread rolling tool capable of automatic expanding hob and processing screw-thread of equal strength at steel bar tip, which comprises a rolling mechanism 10. The utility model is characterized in that the screw-thread rolling tool capable of automatic expanding hob also comprises an adjusting mechanism 20 used to adjust the radial position of rollers and an expanding mechanism 30 to expand rollers. The rolling mechanism 10 consists of a rolling body 11 and rollers 12; the adjusting mechanism 20 comprises an adjusting ring 21, a sliding guide pole 22 and a fork 23, wherein, the inner ring surface of the adjusting ring 21 consists of at least three evenly-arranged curved surfaces 211; the expanding mechanism 30 comprises a roller seat 31, the adjusting ring 21 and a limit block 32; the expanding mechanism is connected with the rolling mechanism and the adjusting mechanism is connected with the expanding mechanism. The utility model is capable of adjusting the space between of the rollers very conveniently and hence the steel rods of different diameters can be manufactured. The utility model has the advantages of simple structure, convenient adjustment, good manufacturing quality and high working efficiency.

Description

A kind of rolling screw-threads device of the cutter that can rise automatically

Technical field

The utility model relates to the equal strength straight thread rolling device that is used for steel bar end, particularly relates to a kind of rolling screw-threads device of the cutter that can rise automatically.

Background technology

Reinforcing bar is a kind of important industry and structure material, and it often need roll out screw thread in the end before use, so that be threaded with other object.For this reason, just relevant special apparatus for working arises at the historic moment, all relate to this type of technology as disclosed Chinese utility application 99243669,99242449,99253101 etc.Though they respectively have characteristics, but still have certain deficiency, as complex structure, operation inconvenience is difficult for regulating and can't realizing the cutter etc. that rises automatically.

Summary of the invention

The purpose of this utility model is to provide a kind of can carry out the adjustment of roller spacing easily, so that the reinforcing bar of processing different-diameter, and simple in structure, easy to adjust, crudy is good, the rolling screw-threads device of the cutter that can rise automatically that work efficiency is high.

For achieving the above object, the utility model provides a kind of rolling screw-threads device of the cutter that can rise automatically, it comprises a rolling mechanism 10, it is characterized in that, it comprises that also a guiding mechanism 20 and that is used to adjust the roller radial position makes the spreading mechanism 30 of roller spreading, above-mentioned spreading mechanism is connected with rolling mechanism, and guiding mechanism then is connected with spreading mechanism.

Rolling mechanism 10 is made of roll extrusion body 11 and roller 12, and wherein the roll extrusion body is a cylinder, has at least three radial direction through hole 111 on the roll extrusion body, by wheel shaft 13 roller 12 is housed in each through hole.

Guiding mechanism 20 comprises adjusts ring 21, slip guide pillar 22 and shift fork 23, wherein adjusts the outside that ring is contained in roller mount 31, and its proximal edge place is connected with the guide pillar 22 that endwisely slips by bolt, and the slip guide pillar other end inserts in the shift fork 23, and shift fork then is connected with flange 24.

The inner ring surface of adjusting ring 21 is made of at least three uniform curved surfaces 211.

Spreading mechanism 30 comprises roller mount 31, adjusts ring 21 and limited block 32, wherein at least three roller mount are contained in three radial direction through hole 111 on the roll extrusion body 11 at least, the roller mount outside is corresponding with at least three curved surfaces 211 that adjustment encircles on 21, and its medial end is equipped with rolling mechanism 10; Limited block 32 is contained in by adjusting ring proximal edge place, outer face.

Good effect of the present utility model is that it efficiently solves the problem of processing different-diameter reinforcing bar.Owing to be provided with key complete machine structure and spreading mechanism, thereby adjust ring, can change the radial position of roller, thereby can process the reinforcing bar of different-diameter by rotating.The utility model can be used for the various Ribbed Bar of roll extrusion end, is not subjected to the restriction of reinforcing bar phosphorus content size, and has enough stability and rigidity.The utility model also has and is skillfully constructed, and simple in structure, easy to adjust, crudy is good, and labor intensity of operating staff is little, characteristics such as work efficiency height.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A cutaway view of Fig. 1.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Consult Fig. 1, Fig. 2, a kind of rolling screw-threads device that can rise by cutter automatically of the present utility model comprises rolling mechanism 10, guiding mechanism 20 and spreading mechanism 30.Described rolling mechanism 10 is made of roll extrusion body 11 and roller 12, wherein the roll extrusion body is a cylinder, have at least three radial direction through hole 111 on the roll extrusion body, have four radial direction through hole that are the cross symmetry in this example on the roll extrusion body, this hole can be a circular hole, it also can be square hole, in each through hole, roller 12 is housed by wheel shaft 13, its vertically two ends be conical, mid portion is cylindrical, its outer surface is furnished with ring screw, and this mechanism is used for rolling out the equal strength straight thread at steel bar end.Described guiding mechanism 20 comprises adjusts ring 21, slip guide pillar 22 and shift fork 23, wherein adjust the outside that ring is contained in roller mount 31, the curved surface 211 that its inner ring surface is uniform by at least three and radius of curvature is identical constitutes (see figure 1), inner ring surface is made of four uniform curved surfaces in this example, and its curvature and curve form have determined adjustment amount.Adjust ring proximal edge place and be connected with guide pillar 22 (see figure 2)s that endwisely slip by bolt 25, the slip guide pillar other end inserts in the shift fork 23, and shift fork is then fixing with flange 24 with screw 26.This guiding mechanism can come the position of pair roller seat 31 to adjust according to the diameter difference of reinforcing bar 40 to be processed, unclamping screw 26 during adjustment can turn an angle shift fork 23 on flange, and the ring rotation is adjusted in drive, thereby roller mount 31 is radially moved, make the roller spacing obtain adjusting, to be used to process the reinforcing bar of different-diameter, reach the adjustment purpose.Described spreading mechanism 30 comprises roller mount 31, adjusts ring 21 and limited block 32, wherein the four rolling seat is contained in four radial direction through hole 111 on the roll extrusion body 11, its shape is corresponding with through hole 111 shapes, they can be circular or square, each roller mount outside is corresponding with a curved surface 211 on adjusting ring 21, and always has any to contact with adjustment ring inner ring surface curved surface.The roller mount outer rim is scalariform, is provided with outwardly directed short column 311 in the roller mount both sides, between it and through hole 111 hole walls spring 33 is housed.The roller mount medial end is equipped with rolling mechanism 10.Limited block 32 being housed, be used to limit moving axially of adjustment ring by adjusting ring proximal edge place, outer face.Consult Fig. 2, during machining screw, the high point of roller mount outer rim step encircles inner ring surface and contacts with adjusting, be worked into size after, adjust ring and run into limited block 32, make and adjust the right slip of hoop, because the effect of spring 33, move on the roller mount, its outer rim low spot and adjustment loop contacts, roller is a spreading.

Claims

1, a kind of rolling screw-threads device of the cutter that can rise automatically, comprise a rolling mechanism (10), it is characterized in that, it comprises that also a guiding mechanism (20) and that is used to adjust the roller radial position makes the spreading mechanism (30) of roller spreading, above-mentioned spreading mechanism is connected with rolling mechanism, and guiding mechanism then is connected with spreading mechanism.

2, the rolling screw-threads device of a kind of cutter that can rise automatically according to claim 1, it is characterized in that, described rolling mechanism (10) is made of roll extrusion body (11) and roller (12), wherein the roll extrusion body is a cylinder, have at least three radial direction through hole (111) on the roll extrusion body, by wheel shaft (13) roller (12) is housed in each through hole.

3, the rolling screw-threads device of a kind of cutter that can rise automatically according to claim 1, it is characterized in that, described guiding mechanism (20) comprises adjusts ring (21), slip guide pillar (22) and shift fork (23), wherein adjust the outside that ring is contained in roller mount (31), its proximal edge place is connected with the guide pillar that endwisely slips (22) by bolt, the slip guide pillar other end inserts in the shift fork (23), and shift fork then is connected with flange (24).

4, the rolling screw-threads device of a kind of cutter that can rise automatically according to claim 1 is characterized in that, the inner ring surface of described adjustment ring (21) is made of at least three uniform curved surfaces (211).

5, the rolling screw-threads device of a kind of cutter that can rise automatically according to claim 1, it is characterized in that, described spreading mechanism (30) comprises roller mount (31), adjusts ring (21) and limited block (32), wherein at least three roller mount are contained in three radial direction through hole (111) on the roll extrusion body (11) at least, the roller mount outside is corresponding with at least three curved surfaces (211) that adjustment encircles on (21), and its medial end is equipped with rolling mechanism (10); Limited block (32) is contained in by adjusting ring proximal edge place, outer face.