KR101686452B1

KR101686452B1 - Rolling roll for complex cross-sectional shape

Info

Publication number: KR101686452B1
Application number: KR1020150043635A
Authority: KR
Inventors: 이태순; 박창규
Original assignee: 칼텍(주)
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2016-12-14
Also published as: KR20160115614A

Abstract

It is an object of the present invention to provide a rolling roll for composite end face machining that can process rings of various cross-sectional shapes without disassembling the rolling rolls in a ring rolling apparatus.
In order to accomplish the above object, the present invention provides a rolling mill for composite end face processing applied to a ring rolling apparatus, comprising: a main shaft rotatably supported by a ring rolling apparatus and rotated; An adapter coupled to the outer surface of the main shaft and rotating as the main shaft; An outer roll formed on the outer surface of the adapter and divided into two in the radial direction and having a composite outer surface; And fixing means for fixing the adapter and the outer roll.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rolling roll for complex cross-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rolling roll for compound end face processing, and more particularly to a rolling roll for multiple end face processing applied to a ring rolling device.

Ring elements are somewhat used in mechanical parts or structures. When the ring elements are relatively small in size, they can be machined by cutting. However, in the case of a large shape, machining is limited.

The ring rolling apparatus disclosed in Japanese Patent Application Laid-Open No. 2011105889 is applicable in this case. The above-mentioned processing method is mainly applied to the processing of a large-sized ring element because the mechanical properties of the material are improved by processing the ring in a rolled form and the material is superior in productivity to machining.

The ring rolling process will be described in detail. First, the material is cut in the form of a round log.

In order to improve the mechanical properties of the material, pressure is applied in the direction of the material axis to perform the upsetting process.

Then, the material after the upset processing is pierced at the center of the ring so as to be suitable for the processing of the ring rolling apparatus, and the work is processed into an initial ring type workpiece.

Thereafter, the work is processed into a predetermined target shape by the following ring rolling apparatus to complete the final product.

The ring rolling apparatus has a basic structure as shown in Fig. The structure of the apparatus includes a rolling roll 30 for machining a circumferential ring and a driving roll 11 for rotation of the workpiece 20.

The work 20 is located between the drive roll 11 and the rolling roll 30 and the outer diameter and inner diameter of the work 20 are gradually increased as the work is progressed by the pressing force of the rolling roll 12 .

The distance between the rolling rolls 30 and the driving rolls 11 also decreases as the processing progresses, thereby completing the machining of the outer diameter and the inner diameter of the predetermined workpiece 20. The inner diameter and outer diameter of the workpiece 20 are measured by a sensor to appropriately control the pressure of the rolling roll 30 and the distance between the rolling roll 30 and the driving roll 11.

The height of the ring-shaped workpiece 20 is controlled by positioning the workpiece 20 between the upper and lower axial rolls 13 and 14 and adjusting the distance between the axial rolls 13 and 14. [ A portion of the work roll 20 contacting the work 20 has a conical shape in order to correspond to a change in size of the work 20. The height of the work 20 is set so as to be parallel to the outline of the cone 20 Machining is performed in agreement.

As a result, the ring rolling apparatus can control the pressure of the rolling roll 30, the distance between the rolling roll 30 and the driving roll 11, the number of rotations of the driving roll 11, The distance between the axial roll 13 and the lower axial roll 14 and the number of revolutions of the axial rolls 13 and 14 and the distance between the axial rolls 13 and 14 and the driving roll 11 are set to a degree of deformation of the work 20 Thereby producing a ring workpiece 20 of a predetermined size.

On the other hand, in the case where the cross section of the ring is not a quadrangle and a curve is formed in the inner diameter portion (hereinafter, referred to as a composite cross section), processing is not performed in the above general method.

Conventionally, in the method of processing a ring having a composite cross section, the primary processing is first carried out with a rolling roll 30 having a cylindrical shape. At this time, the workpiece 20 is processed into a rectangular cross-sectional shape. When a certain processing rate is advanced, the workpiece 20 is replaced with a rolling roll 30 having a shape corresponding to the shape of the composite cross-section, And a ring is manufactured.

This method basically requires two rolling rolls 30 and also increases the working time owing to the replacement of the rolling rolls 30 and, in particular, requires labor for replacement, which makes it impossible to automate the entire processing .

In order to overcome the disadvantages described above, the rolling roll 30 is divided into a section for forming a general cross-sectional shape and a section for a cross-section, and the process is started at a general shape at an initial stage. A method of machining into a cross-sectional part has been proposed by the present applicant as a registered patent No. 1367091.

The above method is a very efficient method in the case of continuously producing ring products having a constant cross-section, but the rolling roll 30 must be replaced in order to produce other types of cross-sections.

Since a large amount of load is applied to the rolling roll 30 in the radial direction, the rolling roll 30 is configured to support the end of the shaft. Thus, it takes a long time to disassemble the supporting structure of the shaft such as the bearing.

Therefore, when the present invention is applied without changing the entire rolling roll 30 even in the process of forming various cross sections, it is possible to reduce the entire processing time, and thus the construction of the rolling roll 30 as described above is necessary.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rolling roll for composite end face processing capable of processing rings of various cross-sectional shapes without disassembling the rolling roll in a ring rolling apparatus, The purpose.

In order to accomplish the above object, the present invention provides a rolling mill for composite end face processing, which is applied to a ring rolling apparatus, comprising: a main shaft rotatably supported by a ring rolling apparatus and rotating; An adapter coupled to the outer surface of the main shaft and rotating as the main shaft; An outer roll formed on the outer surface of the adapter and divided into two in the radial direction and having a composite outer surface; And fixing means for fixing the adapter and the outer roll.

Advantageously, said fastening means comprises: a two-parted roll support which is fastened by means of bolts after being joined to both said two divided outer rolls; A split fixed ring coupled to a receiving hole formed in the outer surface of the adapter; A stationary clamp coupled to the stationary ring by bolts; And a plurality of spacers disposed between the roll support and the stationary ring and divided into two in the radial direction.

More preferably, the roll supporting portion further includes a protrusion formed on a side contacting the outer roll, and a receiving hole for receiving the protrusion is formed on a side surface of the roll supporting portion.

More preferably, the protruding portion further includes a tapered portion, wherein the tapered portion is configured such that when the roll supporting portion moves to the outer roll, the outer roll moves in the direction of the adapter.

More preferably, the adapter has an inner key groove on its outer surface, an inner diameter of the outer roll is formed with a roll key groove corresponding to the inner key groove, and an inner key is inserted into the inner key groove and the roll key groove do.

More preferably, the spacer has a pin inserted in one side thereof and a pinhole in the other side thereof to receive the pin, and the plurality of spacers are coupled by the pin.

The rolling roll for composite end face processing according to the present invention comprises a base shaft rotatably supported by a ring rolling apparatus and a divided outer roll coupled to the outer surface of the base shaft, Since the various composite cross-sections can be processed by replacing only a part of the constituent parts, the time for replacing the rolling rolls can be minimized, thereby achieving high productivity.

1 is a configuration diagram of a general ring rolling apparatus,
Fig. 2 is an assembled view of a rolling roll for a composite end face processing according to the present invention,
Fig. 3 is a configuration diagram of the adapter shown in Fig. 2,
Fig. 4 is a configuration diagram of the roll support portion shown in Fig. 2,
Fig. 5 is a configuration diagram of the outer roll shown in Fig. 2,
Fig. 6 is a configuration diagram of the fixed ring shown in Fig. 2,
Fig. 7 is a configuration diagram of the fixed clamp shown in Fig. 2,
Fig. 8 is a configuration diagram of the spacer shown in Fig. 2,
Fig. 9 is an installation view of the spacer of Fig. 8;

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

The rolling roll 100 for composite end face processing according to the present invention has a structure applied to the rolling roll 30 shown in Fig. 1 and includes a main shaft 40 driven to rotate by being supported by a ring rolling device, An adapter 50 inserted and fixed to the main shaft 40, two outer rolls 70 fixed to the outer surface of the adapter 50, a roll support 80 coupled to one side of the outer roll 70, A plurality of spacers 90 inserted in the outer surface of the adapter 50 to support the adapter 50 and the roll support 80, a fixed ring 110 inserted into the adapter 50, An inner key 120 interposed between the outer rolls 70 to allow the outer roll 70 to rotate according to the adapter 50; And a fixing clamp 130 for pressing the spacer 90.

3, the adapter 50 is formed in an axially symmetrical shape, and an inner diameter portion 51 for coupling the main shaft 40 is formed through the adapter 50. As shown in FIG.

The inner diameter portion 51 is formed with a key groove 52 for coupling with the main shaft 40. A main key is inserted into the key groove 52 so that the main shaft 40 and the adapter 50 rotate equally. At this time, the main shaft 40 also has a separate keyway on which the primary key is seated.

The adapter 50 is formed with an outer diameter portion 53 having the same diameter and a flange portion 54 is formed at one end of the outer diameter portion 53. The flange portion 54 is connected to the outer roll 70 As shown in FIG.

Therefore, the shape of the portion of the flange 54 that contacts the outer roll 70 is the same as that of one side of the outer roll 70.

A fixing groove 55 is formed on one side surface of the outer diameter portion 53, on which the stationary ring 110 is seated.

In addition, two inner key grooves 56 are formed in the outer diameter portion 53 in the longitudinal direction of the adapter 50, and the inner key grooves 56 are formed at intervals of 180 degrees.

Meanwhile, as shown in FIG. 4, the divided roll supporting portion 80 is engaged with the outer diameter portion 53. A protrusion 81 is formed on a surface of the roll supporting portion 80 which contacts the outer roll 70. A tapered portion 82 is formed on a surface of the protrusion 81 in the center of the main shaft 40, And acts to securely fix the outer roll 70 to the adapter 50 when a pressing force is applied.

As shown in FIG. 5, a symmetrical outer roll 70 divided by 180 degrees is engaged with the outer diameter portion 53 of the adapter 50.

A roll key groove 71 is formed at the center of the outer roll 70, and a composite outer surface 72 for forming a composite cross-section is formed in the outer diameter.

One side surface of the flange portion 54 is in contact with the flange portion 54 and has the same shape as that of the flange portion 54. The other side surface of the flange portion 54 has a receiving groove 73 for receiving the projecting portion 81 of the roll supporting portion 80 Is formed.

When the roll supporting portion 80 is engaged with the outer roll 70, the roll supporting portion 80 is coupled with the phase difference of 90, and then the outer supporting portion 80 is separated from the outer roll 70 by a separate bolt. 70).

Thus, each roll support 80 is coupled laterally over the two roll support portions 80 divided vertically, so that the outer roll 70 is not separated from the adapter 50.

The inner key 120 is inserted into the roll key groove 71 and the inner key groove 56 so that the adapter 50 and the outer roll 70 rotate in the same direction.

6, a fixed ring 110 is seated in the fixing groove 55 of the adapter 50. As shown in FIG. The stationary ring 110 is also divided into a plurality of screw holes 111 on the side surface thereof.

The number of divisions is two, but may be three or more if necessary.

Meanwhile, as shown in FIG. 7, the stationary ring 110 further joins the stationary clamp 130 to one side.

A bolt hole 131 is formed in the fixed clamp 130 and another bolt is coupled to the screw hole 111 formed in the fixed ring 110 to fix the fixed clamp 130 and the fixed ring 110.

8, a plurality of spacers 90 for fixing the outer roll 70 are coupled to the outer diameter portion 53 of the adapter 50. As shown in FIG.

The spacer 90 is divided at 180 degrees and a pin 91 is inserted into the side surface and a pin hole 92 is formed at the other side to receive the pin 91. The spacers 90 arranged in the longitudinal direction And are coupled to each other by the pin 91 and the pinhole 92.

9, the spacer 90 is disposed between the roll supporter 90 and the stationary ring 110. When the stationary ring 130 is bolted to the stationary ring 110, The spacer 90 is pressed and fixed.

Therefore, after the fixing clamp 130 is disassembled, the entire spacer 90 is separated from the adapter 50, and the roll support portion 80 is separated from the outer roll 50 Once removed, the outer roll 70 can be removed from the adapter 50. Then, a new outer roll 70 of the required shape is placed on the adapter 50, and then the outer roll 70 is fixed in the same manner as described above.

At this time, adjusting the number of the spacers 90 to be coupled according to the length of the outer roll 70 has the advantage that the outer rolls 70 having various shapes and lengths can be combined.

The adapter 50 may be configured to facilitate coupling of the outer roll 70 or may be configured to fix the outer roll 70 directly to the main shaft 40 without the adapter 50 if necessary .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And all of the various forms of embodiments that can be practiced without departing from the technical spirit.

11: driving roll 13: upper roll
14: lower roll 20: workpiece
30: Rolling roll 31: Lower roll
32: upper roll 40: spindle
50: adapter 51: inner neck
53: keyway 53:
54: flange portion 55: fixing groove
56: inner key groove 70: outer roll
71: roll keyway 72: composite outer surface
73: receiving hole 80: roll supporting portion
81: protruding portion 82: tapered portion
90: spacer 91: pin
92: Pinhole 100: Rolling roll for compound end face processing
110: fixed ring 111: screw hole
120: inner key 130: fixed clamp
131: Bolt hole

Claims

delete

In a rolling roll for multiple end face working applied to a ring rolling apparatus,
A main shaft rotatably supported by the ring rolling device and rotating;
An adapter coupled to the outer surface of the main shaft and rotating as the main shaft;
An outer roll formed on the outer surface of the adapter and divided into two in the radial direction and having a composite outer surface; And
And fixing means for fixing the adapter and the outer roll,
The fixing means comprises:
A two-part roll support which is fastened by bolts after being joined to both of the two divided outer rolls;
A split fixed ring coupled to a receiving hole formed in the outer surface of the adapter;
A stationary clamp coupled to the stationary ring by bolts; And
And a plurality of spacers disposed between the roll support and the stationary ring and divided into two in the radial direction.

The rolling roll according to claim 2, wherein the roll supporting portion further includes a protrusion formed on a side surface contacting the outer roll, and a receiving hole for receiving the protrusion is formed on a side surface of the roll supporting portion.

The rolling roll according to claim 3, wherein the projecting portion further comprises a tapered portion, wherein the tapered portion is configured such that when the roll supporting portion moves to the outer roll, the outer roll moves in the direction of the adapter.

[6] The adapter of claim 4, wherein the adapter has an inner key groove formed on the outer surface thereof, a roll key groove corresponding to the inner key groove is formed on the inner diameter of the outer roll, and an inner key is inserted into the inner key groove and the roll key groove A roll for composite cross-sectional processing.

The rolling roll according to claim 5, wherein the spacer has a pin inserted in one side thereof and a pin hole in the other side thereof to receive the pin, and the plurality of spacers are coupled by the pin.