KR200172998Y1 - Rotating and testing apparatus for repairing mandrel - Google Patents

Abstract

The present invention relates to a mandrel repair rotation and inspection apparatus that allows the heavy mandrel to be easily mounted and rotatable so that repair and inspection work can be processed quickly and simply.

To this end, the present invention provides a rotating member that allows the mandrel for repair to be rotated in a seated state, a reciprocating member for guiding the mandrel fixed to the rotating member in a forward and backward direction, and whether the outer diameter of the mandrel is reduced. Repair by configuring a tester for checking whether it is extended, a balance adjusting member for supporting the rear end of the mandrel and adjusting its left and right equilibrium, and a base frame for firmly fixing the rotating member, the reciprocating transfer member, and the tester. The mandrel is rotatably supported and the mandrel can be easily tested for expansion and contraction of the outer diameter of the mandrel after repair.

Description

ROTTING AND TESTING APPARATUS FOR REPAIRING MANDREL}

The present invention relates to a mandrel repair rotation and inspection device, and more particularly, a mandrel repair rotation to facilitate the repair and inspection work quickly and simply by making the heavy mandrel easily mounted and rotatable And an inspection apparatus.

A mandrel (MANDREL = MANDRIL) is a mandrel inserted into a hole when a workpiece having a central hole is normally machined in an industrial lathe, a milling machine, a gear cutter, etc., and is a device for winding a coil in a steel mill.

Since the mandrel is a very heavy weight, when a problem occurs during repair and repair, there is no means for repairing and testing while rotatably supporting it conventionally, causing considerable difficulty.

In other words, in order to repair the mandrel, the ground crane is used to repair the mandrel after the mandrel of the mandrel using the ground crane.

Therefore, the repair time is long, and there is always a risk of a safety accident as the worker climbs directly on the upper mandrel in the process of disassembling the heavy mandrel.

In addition, after the repair is completed, the expansion and contraction status of the mandrel cannot be checked immediately, so it can be used in the factory after reassembly at the factory to test the quality defect, increase the risk of safety accidents and increase the waiting time. The lowering of productivity caused by this problem is a big problem.

The present invention has been made to solve the problems in view of the above-described problems, mandrel repair rotation to support the mandrel to be repaired rotatably and to easily test the expansion and contraction state of the outer diameter of the mandrel after repair work And the provision of an inspection device.

The object of the present invention is that the supporting jaw is formed so as to support the middle portion of the mandrel having a 'Ｖ' shaped inclined groove on one end of the upper surface, and is cut along its longitudinal direction with a constant width at the center of the opposite end A base box having a guide box formed therein, the base frame having a rectangular box shape having a movable plate having a substantially 'b' shape slidably inserted into the guide groove and placed on an upper surface thereof; A housing is fixed to the movable plate at intervals from each other, and a coupling for fixing one end of the mandrel is embedded in the housing, rotatably fixed to an outer circumference of the coupling and interposed between the housings. A rotating member having a driven sprocket connected to a chain and a driving sprocket fixed to one side of the upper surface; A reciprocating transfer member embedded in the guide groove of the base frame to move the movable plate forward and backward by an adjustment handle; A tester having a hydraulic cylinder in front of the rotating member which is an upper surface of the moving plate, and a rod of the hydraulic cylinder being detachably fixed to one end of the mandrel; The mandrel is achieved by configuring a balance adjusting member which is installed on a lower surface of the opposite end inserted into the rotating member so that the left and right balance of the mandrel can be adjusted by a lever.

1 is an overall perspective view showing the appearance of the mandrel repair rotation and inspection device according to the present invention,

Figure 2 is a perspective view showing a rotating member constituting a mandrel repair rotation and inspection device according to the present invention,

Figure 3 is a perspective view of the main part showing a reciprocating transfer member constituting a mandrel repair rotation and inspection device according to the present invention,

4 is a perspective view showing a tester constituting a mandrel repair rotation and inspection device according to the present invention,

Figure 5 is a cross-sectional view showing a balance control member constituting a mandrel repair rotation and inspection device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: rotating member, 12: driving sprocket,

14: chain, 15: housing,

16: driven sprocket, 18: coupling,

20: reciprocating transfer member, 22: support bracket,

23: screw shaft, 25: nut,

30: tester, 32: hydraulic cylinder,

34: pusher block (36), clamp bolt (CLAMP BOLT),

40: balancing member, 41: lever,

43: nut, 45: support portion,

50: base frame, 52: support jaw,

54: moving plate, 56: guide groove,

M: Mandrel.

Hereinafter, a preferred embodiment according to the present invention will be described in detail by way of example on the basis of the accompanying drawings.

1 is an overall perspective view showing the appearance of the mandrel repair rotation and inspection apparatus according to the present invention.

As shown, the mandrel repair rotation and inspection device of the present invention is largely a rotating member 10 that allows to rotate in a state in which the repair mandrel (M) is seated, and the mandrel fixed to the rotating member 10 Supporting the reciprocating transfer member 20 for guiding (M) in the front and rear direction, the tester 30 for checking whether the outer diameter of the mandrel (M) is reduced or expanded, and supports the rear end of the mandrel (M) The balance control member 50 and the rotation member 10, the reciprocating transfer member 20, the base frame 50 for supporting the tester 30 is firmly fixed so that the left and right balance state can be adjusted.

The base frame 50 is formed in a substantially rectangular box shape, the support jaw 52 is formed to support the middle portion of the mandrel (M) having an inclined groove of the 'Ｖ' shape on the upper surface of one end thereof, A guide groove 56 cut along the transverse direction of the base frame 50 having a predetermined width and its longitudinal direction is formed at the center of the opposite end, and is slidably inserted into the guide groove 56 and the base frame ( 50) It has a moving plate 54 of approximately 'a' settled on the upper surface.

A speed reducer 13 is installed on an upper surface of one end of the moving plate 54, and the speed reducer 13 is rotated by the control handle 11 and the control handle 11 which the worker can rotate manually. Drive sprocket 12 is provided.

Figure 2 is a perspective view showing a rotating member constituting a mandrel repair rotation and inspection apparatus according to the present invention.

According to FIG. 2, the rotating member 10 has a housing 15 fixed to the movable plate 54 at a distance from each other, a coupling 18 embedded in the housing 15, and the coupling 18. It is composed of a driven sprocket 16 is fixed to the outer periphery of the) and interposed between the housing (15).

The housing 15 has a substantially rectangular plate shape and is bolted to the movable plate 54, and is provided to be movable simultaneously with the flow of the movable plate 54.

In addition, the coupling 18 has a cylindrical shape, and a plurality of bolt holes 19 for fixing the mandrel M are formed in the circumferential direction thereof.

A driven sprocket 16 is interposed between the housing 15 and connected to the drive sprocket 12 by a chain ('14' in FIG. 1).

Therefore, as the driven sprocket 16 is rotated in accordance with the rotation of the driving sprocket 12, the mandrel M fixed thereto is easily rotatable.

In addition, the bush 17 is interposed between the driven sprocket 16 and the outer periphery of the coupling 18 so as to eliminate the play.

Figure 3 is a perspective view of the main part showing a reciprocating transfer member constituting a mandrel repair rotation and inspection apparatus according to the present invention.

As shown in the figure, the reciprocating conveying member 20 is a screw shaft 23 installed to penetrate the base frame 50 of Figure 1 in the longitudinal direction, and the base frame (to support the front end side of the screw shaft 23 ( The support bracket 22 screwed to the 50, the control handle 21 fixed to the front end of the screw shaft 23 to the front side of the support bracket 22, the shape in which the screw shaft 22 is inserted The bracket 24 is bolted to the moving plate 54 and is fixed so as not to flow in the bracket 24, the screw shaft 23 and the nut 25 is screwed.

The screw shaft 23 is rotatably installed by the adjusting handle 21, for this purpose, a support bracket 22 and a bush 26 are installed at the front and rear ends thereof.

In addition, the nut 25 is fitted to the screw shaft 23, and the nut 25 is a substantially rectangular plate and has a diameter and a thread corresponding to the screw shaft 23 at the center thereof.

Accordingly, as the screw shaft 23 rotates, the nut 25 can be moved back and forth along the longitudinal direction of the shaft 23.

In addition, the nut 25 is fixed to the bracket 24 without flow, for this purpose, the bracket 24 has a substantially rectangular plate-shaped head fixed to the moving plate 54 is formed at the bottom surface of the head A pair of legs protruding from each other and having a substantially '대략' shape in cross section is formed.

Thus, the empty space of the leg portion is settled in the screw shaft 23, and the nut 25 fastened to the screw shaft 23 is fitted in the space therebetween.

Accordingly, the screw shaft 23 rotated by the operation of the adjusting handle 21 causes the nut 25 to move forward and backward, and the movable plate fixed thereto by the forward and backward operation of the nut 25. 54) moves forward and backward at the same time.

Figure 4 is a perspective view showing a tester constituting a mandrel repair rotation and inspection apparatus according to the present invention.

According to FIG. 4, the tester 40 includes a hydraulic cylinder 32 that can be moved back and forth, a pusher block 34 that can be detachably attached to the rod of the cylinder 32, and a clamp bolt that is assembled to the pusher block 34. It consists of 36.

The hydraulic cylinder 32 is installed on the upper surface of the support plate 38 fixed on the movable plate 54 of FIG. 1, and the support plate 38 is formed when the mandrel M is mounted on the rotating member 10. It is preferable that the end center is formed at a height such that it is substantially coincident with the rod of the hydraulic cylinder 32, and although not shown, it is particularly preferable that the height of the support plate 38 is adjustable by a known means. Do.

Therefore, when the rod portion of the cylinder 32 is assembled with the pusher block 34 to fix the end of the mandrel M with the clamping bolt 36, the cylinder 32 is supplied with pressure to operate the cylinder 32 forward and backward. While the outer diameter of the mandrel (M) can be easily reduced or enlarged, it is possible to check the repair state and the change in the outer diameter.

Figure 5 is a cross-sectional view showing the balance control member constituting the mandrel repair rotation and inspection apparatus according to the present invention.

According to FIG. 5, the balancing member 40 is composed of a body 42, a threaded shaft 44, and a nut 43. The balance adjusting member 40 has a rotating lever 41 and rotates the nut 43. The shaft 44 and the support 45 will be properly moved.

Accordingly, the left and right balance of one end of the mandrel M for repair can be easily adjusted.

Rotation and inspection device of the present invention made in this configuration is operated as follows.

First, one end of the repair target mandrel M, which is disassembled in the field winding machine, is inserted into the housing 15 of the rotating member 10 and its opposite end is placed on the support 45 of the balance control member 40.

Then, after adjusting the balance of the mandrel (M) using the lever 41 of the balance control member 40, the mandrel (M) is one end using the operation handle 21 of the reciprocating transfer member (20). It is to be inserted into the coupling 18 of the rotating member 10.

One end of the mandrel M thus inserted is bolted through a bolt hole 19 processed in the coupling 18.

Then, while rotating the mandrel (M) slowly by turning the adjustment handle 11, the operation of the outer diameter of the mandrel, the replacement of the segment (S), the internal repair and the like.

After the repair work is completed, the hydraulic cylinder 32 assembled with the pusher block 34 of the tester 30 is advanced and fixed, and the end of the mandrel M is fixed by the clamp bolt 36.

Thereafter, while the hydraulic cylinder 32 is moved back and forth, the state of the mandrel M is expanded and reduced, and the state thereof is checked.

Subsequently, after the inspection is completed, release all the fixed state, take out the mandrel (M), and assemble it to the site for use.

As described in detail above, the mandrel repair rotation and inspection device according to the present invention provides the following effects.

First, when repairing and inspecting the mandrel, it is possible to drastically reduce the risk of safety accidents because it is not necessary to work with the crane hook as before.

Second, after the repair work can be continuously tested at the repair site before the site is carried out, it is possible to shorten the field work time and improve productivity.

Claims (1)

At one end of the upper surface of the support jaw 52 to support the middle portion of the mandrel (M) having a 'Ｖ' shaped inclined groove is formed protruding, and the opposite end has a predetermined width and cut along the longitudinal direction A guide box 56 is formed, and a rectangular box-shaped base frame 50 having a moving plate 54 having a substantially 'b' shape slidably inserted into the guide groove 56 and placed on an upper surface thereof; The housing 15 is fixed to the movable plate 54 at intervals from each other, and a coupling 18 for fixing one end of the mandrel M to the housing 15 is embedded therein. A rotating member 10 rotatably fixed to an outer circumference and having a driven sprocket 16 interposed between the housing 15 and a chain connected to the driving sprocket 12 as a driving source; A reciprocating transfer member (20) embedded in the guide groove (56) of the base frame (50) to move the movable plate (54) forward and backward by an adjustment handle (21); A tester having a hydraulic cylinder 32 in front of the rotating member 10, which is an upper surface of the moving plate 54, and a rod of the hydraulic cylinder 32 is fixedly detachably fixed to one end of the mandrel M. 30); The mandrel (M) is installed on the lower surface of the opposite end is inserted into the rotating member 10 is characterized in that consisting of a balance control member 40 to adjust the left and right balance of the mandrel (M) with the lever 41 Mandrel repair rotation and inspection equipment.