Feeding structure of vertical ring rolling machine

Abstract

The utility model discloses a feeding structure of a vertical ring rolling machine, which belongs to the technical field of vertical ring rolling machines and comprises an upper footstock, a stand column, a lower supporting seat and a lower base which are assembled into a frame-shaped three-dimensional structure through a first super nut and a second super nut. Meanwhile, an ejection cylinder of the oil cylinder is connected with the main shaft base, so that the main shaft base can move up and down along the stand column under the driving of the oil cylinder; a main roller is arranged between the main shaft bases, is movably mounted on the main shaft bases, and is driven by a motor connecting shaft to rotate during working; supporting rollers are symmetrically and movably installed on the lower supporting seats, and meanwhile the supporting rollers are arranged in parallel relative to the main roller. According to the device, the ejection oil cylinder is placed at the top end, so that the ejection oil cylinder is more convenient to disassemble, repair and maintain; and meanwhile, oxide skin and powder can be prevented from entering the copper sleeve to cause quick abrasion of the stand column and the copper sleeve.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vertical ring rolling mill technical field, and specifically relates to a feeding structure of vertical ring rolling mill. BACKGROUND

[0002] Ring rolling (also known as ring rolling, ring rolling, hole expanding, ring rolling) is a kind of plastic processing technology that makes ring parts produce continuous local plastic deformation by means of ring rolling mill (also known as ring rolling mill, ring rolling mill, hole expander) to realize wall thickness reduction, diameter expansion and cross section profile forming.

[0003] Chinese patent publication No. CN105562568B discloses a vertical ring expander, which comprises a frame, the frame is a four-column frame structure, a movable beam, a core roller, a centering roller, a main transmission and a measuring device are installed on the frame, and the frame further comprises a hydraulic system, an electric control system, a lubrication system and a cooling system, a ring part or a cylindrical part to be expanded is placed on the core roller and is automatically expanded and formed. The vertical ring expander also provides an expanding method.

[0004] However, the structure in the prior art is compact, that is, the distance between the column and the ring part is small, and in the use process, the column periphery on the upper surface of the sliding sleeve will accumulate the oxide skin and powder splashed therefrom. Since the movable beam needs to pass through the sliding sleeve and slide upward along the column every time the ring rolling is needed, gradually, the oxide skin and powder will enter the sliding sleeve of the movable beam, and when the sliding sleeve slides along the column, the wear of the sliding sleeve and the column is accelerated. As the gap between the sliding sleeve and the column increases, more oxide skin and powder will enter the gap between the sliding sleeve and the column, which further accelerates the wear of the sliding sleeve and the column. As the wear increases and the gap between the sliding sleeve and the column increases, the stability of the ring rolling process deteriorates and the dimensional accuracy decreases, and even the entire column needs to be replaced. The replacement of the column requires the entire equipment frame to be folded and reassembled. UTILITY MODEL CONTENTS

[0005] In view of the above problems in the prior art, the utility model aims to provide a feeding structure of vertical ring rolling mill.

[0006] The utility model provides the following technical scheme:

[0007] A feeding structure of vertical ring rolling mill, which comprises an upper top seat, a column, a lower supporting seat and a lower base assembled into a frame-shaped three-dimensional structure through super nuts one and super nuts two, the column is symmetrically sleeved with a main shaft base through a copper sleeve, an oil cylinder is installed on the upper top seat, and the ejection cylinder of the oil cylinder is connected with the main shaft base, so that the main shaft base can move up and down along the column under the driving of the oil cylinder; main rollers are arranged between the main shaft bases and are movably installed on the main shaft bases and rotate under the driving of a motor connecting shaft during work; supporting rollers are symmetrically movably installed on the lower supporting seat, and the supporting rollers are arranged in parallel relative to the main rollers.

[0008] Specifically, the column passes through the upper top seat, the lower supporting seat and the lower base, and one end of the column passes out of the upper top seat and is fixed by the super nut one, and the other end of the column passes out of the lower base and is fixed by the super nut two.

[0009] Specifically, the oil cylinder is installed downward on the upper end of the upper top seat.

[0010] Specifically, a copper sleeve is arranged in each port of the main shaft base.

[0011] Specifically, the number of supporting rollers is four.

[0012] Specifically, the mandrel is arranged on the supporting roller.

[0013] The beneficial effects of the utility model are:

[0014] 1. The ejection oil cylinder is placed at the top end, and the ejection oil cylinder is more convenient to disassemble and maintain;

[0015] 2. The copper sleeve can avoid the oxidation skin and powder from entering the copper sleeve to cause the rapid wear of the column and the copper sleeve. DETAILED DESCRIPTION

[0016] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0017] Fig. 1 It is the front view of the utility model;

[0018] Fig. 2 It is the side view of the utility model;

[0019] Marked as in the drawing: 1, super nut one; 2, upper top seat; 3, main shaft base; 4, main roller; 5, column; 6, mandrel; 7, lower supporting seat; 8, lower base; 9, ring forging; 10, supporting roller; 11, super nut two; 12, oil cylinder; 13, copper sleeve. DETAILED DESCRIPTION

[0020] As Figs. 1-2The utility model provides a vertical ring rolling mill's feed structure, including through super screw nut one 1 and super screw nut two 11 and assemble one frame shaped three-dimensional structure's upper top seat 2, stand 5, lower support seat 7 and lower base 8, the main shaft bed 3 is symmetrically sleeved on stand 5 through copper bush 13, and the oil cylinder 12 is installed on the upper top seat 2, and the oil cylinder 12 is connected with the main shaft bed 3 simultaneously, so that under the driving of the oil cylinder 12, the main shaft bed 3 can move up and down along the stand 5, the main roller 4 is arranged between the main shaft bed 3, and the main roller 4 is movably installed on the main shaft bed 3, and rotates under the driving of motor connecting shaft during work, the supporting roller 10 is movably installed on the lower support seat 7 symmetrically, and the supporting roller 10 is placed in parallel with the main roller 4, and the mandrel 6 is placed on the supporting roller 10.

[0021] Specifically, the stand 5 passes through the upper top seat 2, the lower support seat 7 and the lower base 8, and one end of the stand 5 passes out from the upper top seat 2 and is fixed by the super screw nut one 1, and the other end of the stand 5 passes out from the lower base 8 and is fixed by the super screw nut two 11.

[0022] Specifically, the oil cylinder 12 is installed downward on the upper end of the upper top seat 2.

[0023] Specifically, the copper bush 13 is arranged in each port of the main shaft bed 3, so as to reduce abrasion of the main shaft bed 3 during movement.

[0024] Specifically, the number of the supporting roller 10 is four.

[0025] The oil cylinder 12 and the motor are communicatively coupled to the controller.

[0026] The controller is a programmable numerical control system, the PLC is used as a central control system, the program input and the running control of the whole machine are realized through a touch screen, and the whole working process is realized automatically. The control system can be used as a system connected with various execution elements and moving according to a logical track, and the execution elements are controlled to run according to required running steps through programming.

[0027] The working principle of the utility model is as follows:

[0028] The heated ring forging 9 is moved into a working area by a forklift, the mandrel 6 passes through the inner diameter of the ring forging 9 under the action of external force, and the two ends of the mandrel 6 are placed on the four supporting rollers 10, then the equipment program is started, the main roller 4 rotates uniformly under the driving of the motor, the ejecting cylinder of the oil cylinder 12 rapidly ejects downward, the main shaft bed 3 moves downward along the stand 5 by T distance under the action of the ejecting cylinder through the copper bush 13, the main roller 4 moves downward by T distance synchronously, the main roller 4 contacts the ring forging 9, the ring forging 9 starts to rotate under the driving of the main roller 4, and the supporting roller 10 also rotates simultaneously, along with the continuous downward movement of the main roller 4, the wall thickness of the ring forging 9 gradually thins, and the diameter becomes larger, until the specified outer diameter size is reached, the main roller 4 stops downward movement and rises to the initial height. The mandrel 6 is moved to the right, and the ring forging 9 is taken away.

[0029] In the device, the ejection oil cylinder is placed at the top end, so that the ejection oil cylinder is convenient to disassemble and maintain, and meanwhile, the rapid wear of the column and the copper sleeve caused by the entry of the oxide skin and powder into the copper sleeve can be avoided.

[0030] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A feeding structure of a vertical ring rolling machine, comprising an upper top seat, a column, a lower supporting seat and a lower base assembled into a frame-shaped three-dimensional structure by a super nut one and a super nut two, characterized in that A main shaft base is symmetrically sleeved on the column through a copper sleeve, an oil cylinder is installed on the upper top seat, and an ejection cylinder of the oil cylinder is connected with the main shaft base, so that the main shaft base can move up and down along the column under the driving of the oil cylinder; main rollers are arranged between the main shaft bases, and the main rollers are movably installed on the main shaft bases and rotate under the driving of a motor connecting shaft during work; supporting rollers are symmetrically movably installed on the lower supporting seat, and the supporting rollers are arranged in parallel relative to the main rollers.

2. A feed structure for a vertical ring rolling machine according to claim 1, characterized in that The column passes through the upper top seat, the lower supporting seat and the lower base, one end of the column passes out of the upper top seat and is fixed by the super nut one, and the other end of the column passes out of the lower base and is fixed by the super nut two.

3. The feed structure of a vertical ring rolling machine according to claim 1, wherein The oil cylinder is installed downward on the upper end of the upper top seat.

4. The feed structure of a vertical ring rolling machine according to claim 1, wherein A copper sleeve is arranged in each port of the main shaft base.

5. The feed structure of a vertical ring rolling machine according to claim 1, wherein The number of the supporting rollers is four.

6. A feed structure for a vertical ring rolling machine according to any one of claims 1-5, characterized in that, A mandrel is arranged on the supporting rollers.

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