JPH0624832U - Grinding wheel assembly device - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a grinding wheel assembling apparatus, and in particular, is characterized by easily assembling a grinding wheel attached to a grinding machine for grinding a rolling roll by one person. [Structure] A grinding wheel assembly device according to the present invention comprises a grinding wheel assembly support shaft (10) which is provided at a central position in a longitudinal direction of a rotatable grinding wheel support frame (9) and is provided with a wheel holder (2) detachably provided. ), And the grinding wheel (1A) is assembled with the support shaft (10).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grinding wheel assembly device, and more particularly to a new improvement for easily assembling a grinding wheel to be attached to a polishing machine that polishes a rolling roll.

[0002]

[Prior art]

 Conventionally, in order to remove flaws on a rolling roll, a grinding machine equipped with a grinding wheel is used to grind the roll, but when a certain disposal standard is reached, a new grinding wheel is replaced. To replace the grindstone, remove the old grindstone from the grinder using a lifting tool, place the grindstone on the trolley, carry it to the maintenance yard, and lay it down horizontally on the floor to mount the grinder and grindstone. Remove each bolt of the grindstone holder provided for this purpose. This grindstone holder has a cylindrical grindstone attached from both sides. When each bolt is removed, hold the grindstone holder on the upper side and lower it to remove the grindstone. Next, after thoroughly cleaning the inside of the removed holder, take out a new grinding wheel and set it in the holder. The grindstone newly mounted on the grindstone holder in this way is mounted on the grinder using the suspending tool.

[0003]

[Problems to be solved by the device]

 Since the conventional grindstone replacement was performed as described above, the following problems existed. That is, the frequency of the series of roll grinding wheel replacement operations described above is about 90 times in half a year, and all the series of operations are manual operations. In addition, a new grindstone alone can weigh 120 kg, and a holder can weigh 210 kg, and multiple people can hold the grindstone holder or place it on the floor to set it up for assembly. There were also accidents that caused obstacles and were caught and caused accidents. Moreover, this replacement work could not be performed by one person, and at least three people spent a large number of people on this work, requiring one replacement time and 1.5 hours.

The present invention makes it extremely easy by mechanizing a series of operations for removing and installing a grindstone holder for exchanging a grindstone, which is the most difficult work in these series of manual work, and can be easily and quickly performed by one person. It is an object of the present invention to provide a grinding wheel assembling device that can be mounted.

[0005]

[Means for Solving the Problems]

 The grinding wheel assembling apparatus according to the present invention includes a grinding wheel supporting frame rotatably mounted on a pair of bearings provided on a base, and a whetstone holder provided at a central position in the longitudinal direction of the grinding wheel supporting frame so that the wheel holder can be attached and detached. In order to provide a grinding wheel, a grinding wheel assembly support shaft and fixing portions for fixing the grinding wheel held by the grinding wheel holder, which are provided at both ends of the grinding wheel supporting frame, are provided.

More specifically, a configuration is provided that includes a fixing arm provided at one end of the grinding wheel support frame and a locking member provided on the base side for locking the fixing arm. is there.

More specifically, the configuration is such that a lever provided on the other end of the grinding wheel support frame and a detection unit provided on the base side for detecting the lever are provided.

More specifically, the grinding wheel assembly support shaft and the fixing portion are composed of a plurality of pieces and are provided at intervals of 90 degrees in the rotation direction of the grinding wheel support frame.

[0009]

[Action]

 In the grinding wheel assembling apparatus according to the present invention, the waste grinding wheel removed from the polishing machine and carried by a trolley or the like is horizontally laid on the floor. At this time, the grinding wheel assembling support shaft of the grinding wheel assembling apparatus of the present invention is stopped in a vertical state facing upward and is fixed by a fixing pin. Then, the horizontally disposed waste grindstone is hooked on the claw of the chucking arm of the hanging tool and lifted by a hoist or the like (not shown), and is horizontally mounted on the grinding grindstone assembly supporting shaft. After this installation, set the end of the grinding wheel assembly support shaft with the stop nut. Next, the bolt of the grindstone holder is removed using an impact wrench. Then, using the above-mentioned suspending tool, the bolt of this suspending tool is screwed into the screw hole of the grindstone holder and stopped. In this way, one side of the upper part of the grindstone holder is hoisted by a lifting tool and moved to be temporarily stored on the floor, and dust and the like adhering to the inside of the grindstone holder are cleaned. Then, the waste grindstone is lifted up with a lifting tool and removed, and then a new grindstone is carried by a trolley to this grindstone assembly device. At this time, the new whetstone is placed vertically against the trolley.

Next, the grinding wheel assembly support shaft (at this time, the lower one side of the grindstone holder is attached to the support shaft with the support shaft remaining on the support shaft, and the lock nut is also stopped similarly. ), After pulling out the fixing pin, rotate 90 degrees so as to be oriented sideways. In the state described above, a new grindstone on the dolly is erected while being hung by another hoisting tool (not shown), and mounted on the grinding grindstone assembly support shaft that is oriented horizontally. After mounting, stop the left and right with the fixed parts on the grinding wheel support frame to prevent the wheel from slipping off, and then rotate the grinding wheel support frame 90 degrees to make the grinding wheel assembly support shaft the horizontal again. Rotate in the direction.

As described above, when the new grindstone is horizontal, after the grindstone is made to fit on the lower one side of the grindstone holder, the upper one side of the grindstone holder is hung by the suspending tool and set on the grindstone. Fasten with bolts using an impact wrench. When this fastening is completed and the grinding wheel assembly is completed, the grinding wheel assembly support shaft is turned over again and the grinding wheel axis is turned sideways, and the left and right fixing parts and the lock nuts are hung by the other lifting tool. Remove. After that, the grinding wheel is mounted on a trolley, transported, and attached to a polishing machine.

[0012]

【Example】

 Hereinafter, preferred embodiments of a grinding wheel assembling apparatus according to the present invention will be described in detail with reference to the drawings. 1 is a front view of a grinding wheel assembling apparatus according to an embodiment of the present invention, FIG. 2 is a left side view, FIG. 3 is a side view showing a state after the whetstone is assembled, and FIG. FIG. 5 is a side view showing a state in which the grindstone is removed, and FIGS. 6 and 7 are a side view and a plan view showing the lifting of the grindstone. On a base 4 assembled from steel material, a grinding wheel support frame 9 rotated by a power transmission device 4A such as a motor 5, a speed reducer 6, a coupling 7 and the like is rotatably provided via a pair of bearings 8. Has been. At the center position of the support frame in the longitudinal direction, a grinding wheel assembly support shaft 10 having a conical shape for mounting and supporting the grinding wheel 1 for grinding and having a lock nut 16 at its end is provided. A pair of fixed bases 17 for fixing new grindstones are provided on the support frames 9 on both sides of the support shaft 10, and a pair of fixed bases 17 are supported by the fixed bases 17 on both sides of the support shaft 10. A fixed part 18 is provided. A fixing arm 11 having a hole 11a for fixing the reversal of the supporting frame 9 is provided at one end 9a of the rectangular grinding wheel supporting frame 9, and on the base 4, this fixing arm 11 is provided. A fixing body 12 having a hole 12a for fixing the fixing arm 11 is provided, and the fixing arm 11 can be fixed to the fixing body 12 by inserting a fixing pin 13 into each hole 11a, 12a. . The stopper 12, the pin 13 and the holes 11a, 12a described above constitute a locking member for locking the fixing arm 11.

At the other end 9b of the rotatable grindstone support frame 9, there is provided a lever 14 for activating a plurality of limit switches 15 for stopping the rotation thereof. Each of the limit switches 15 is a detection lever. Three detection units 15 are provided on the base 4 so as to abut against the control unit 14 and each limit switch is provided every 90 degrees. That is, the limit switch 15 is attached to the grinding wheel assembly support shaft 10 with the grinding wheel main body 1A with the grinding wheel holder 2 in an upright position (the shaft is in a horizontal position as shown in FIG. 4). There are a total of three positions, one for performing the above-mentioned operation, and the other for causing the grinding wheel main body 1A to be horizontal by 90 ° to stop the reversal of the support frame 9 and lock the same in order to perform the assembling work. As shown in the figure, a plurality of grinding wheel assembly support shafts 10 are provided at intervals of 90 degrees because a plurality of grinding wheel holders 2 as adapters to be incorporated in the grinding wheel body 1A have different types. Because there is.

Next, what is shown in FIG. 6 is a suspending tool 30 for suspending a grinding grindstone or the like for disposal, and a suspending ring 19 is provided at the center of a cross-shaped arm 18, A square bar 20 having a hole 20a is provided at each base of 18 and a bolt 21 which can be screwed into a screw hole 24 of a grindstone holder 2 which is a suspended load is passed through the hole 20a of the square bar 20 to A chucking arm 22 provided with each tip claw 22a of each arm 18 is rotatably provided via a pivot pin 23. Therefore, the grindstone 1 is chucked by the claws 22a.

Next, a description will be given of a case in which the waste grindstone actually removed from the grinder in the above-mentioned configuration is discarded, a new grindstone is assembled by the device according to the present invention, and then mounted again on the grinder. . First, the abandoned whetstone that has been removed from the polisher and carried by a trolley is placed horizontally on the floor. At this time, the grinding wheel assembling support shaft 10 of the grinding wheel assembling apparatus of the present invention is stopped in a vertical state facing upward and fixed by the fixing pin 13. Next, the horizontally disposed waste grindstone is hooked on the claws 22a of the chucking arm 22 of the hanging tool 30 and lifted by a hoist or the like (not shown), and is horizontally mounted on the grinding grindstone assembly supporting shaft 10. . After this attachment, the end of the grinding wheel assembly support shaft 10 is stopped and stopped by the nut 16. Next, the bolt 3 of the grindstone holder 2 is removed by using an impact wrench or the like. Then, using the lifting tool 30, the bolt 21 of the lifting tool 30 is screwed into the screw hole 24 of the grindstone holder 2 and stopped. In this way, the upper one side of the grindstone holder 2 is lifted by the lifting tool 30 and moved to be temporarily stored on the floor, and dust and the like adhering to the inside of the grindstone holder 2 are cleaned. Subsequently, the waste grindstone is hoisted and removed by the hoisting tool 30, and then a new grindstone is carried by a trolley to the grinding wheel assembly device. At this time, the new whetstone is placed vertically against the trolley.

Next, the grinding wheel assembly support shaft 10 (at this time, the support shaft 10 is attached with the lower half side of the grindstone holder 2 remaining on the support shaft 10, and the stop nut 16 is also stopped in the same manner. After pulling out the fixing pin 13, rotate 90 degrees so that it faces sideways. In the above-mentioned state, a new grindstone on the dolly is erected while being hung by another hoisting tool (not shown) and mounted on the grinding grindstone assembly support shaft 10 which is laid sideways. After mounting, stop the left and right with the fixed parts 18 on the grinding wheel support frame 9 to prevent the grinding wheel 1 from falling off, then rotate the grinding wheel support frame 90 degrees and re-install the grinding wheel assembly supporting shaft 10. Rotate the grindstone horizontally.

As described above, when the new grindstone 1 becomes horizontal, the grindstone 1 is well fitted to the lower one side of the grindstone 2 holder, and then the upper one side of the grindstone holder 2 is hung by the hoisting tool 30 to form the grindstone 1. Set and fasten with bolts 3 using an impact wrench on the table. When this fastening is completed and the assembly of the grinding wheel 1A is completed, the grinding wheel assembly support shaft 10 is turned over again so that the axis of the grinding wheel 1 is sideways and is hung by the above-mentioned other suspending tool, and the left and right fixing parts 18 are attached. And the lock nut 16 are removed. After that, the grinding wheel 1A is mounted on a trolley, carried and attached to a polishing machine.

[0018]

[Effect of device]

 Since the grinding wheel assembly device according to the present invention is configured as described above, the following effects can be obtained. That is, a replacement grindstone to be attached to the grinder is easily assembled without the need of manpower by the grindstone holder provided on the grinding grindstone assembly support shaft provided on the rotating grinding grindstone support frame. It can be reattached to the machine and eliminates the anxiety of back pain caused by the transportation of heavy objects and the anxiety of being caught in an accident, and has an epoch-making effect that enables one person to assemble a whetstone, which was not possible by one person. Is.

[Brief description of drawings]

FIG. 1 is a front view of a grinding wheel assembling apparatus according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a side view showing a state after the grindstone is assembled.

FIG. 4 is a side view showing a state in which the grindstone of FIG. 3 is rotated.

FIG. 5 is a side view showing a state in which a grindstone is removed.

FIG. 6 is a side view showing lifting of a whetstone.

FIG. 7 is a plan view showing lifting of a grindstone.

[Explanation of symbols]

 1 Grindstone 2 Grindstone Holder 4 Base 9 Grinding Grindstone Support Frame 9a One End 9b Other End 10 Grinding Grindstone Assembly Support Shaft 11 Fixing Arm 12 Stopper Locking Member 13 Fixing Pin Locking Member 14 Lever 15 Detecting Part 18 Fixing Part

Claims (4)

[Scope of utility model registration request] 1. A grinding wheel support frame (9) rotatably provided on a pair of bearings (8) provided on a base (4), and a longitudinal center position of the grinding wheel support frame (9). Grinding wheel assembly support shaft (1
0) and a fixing portion (18) for fixing the grindstone (1) which is provided at both ends of the grinding grindstone support frame (9) and is held by the grindstone holder (2). Grinding wheel assembly device. 2. The fixing arm (11) provided on one end (9a) of the grinding wheel support frame (9) and the fixing arm (11) provided on the side of the base (4) are locked. Locking member (12,
13) The grinding wheel assembling apparatus according to claim 1, further comprising: 3. A lever (14) provided on the other end (9b) of the grinding wheel support frame (9) and a detection provided on the base (4) side for detecting the lever (14). The grinding wheel assembling apparatus according to claim 1 or 2, wherein the portion (15) is provided. 4. The grinding wheel assembly support shaft (10) and a fixed part
The grinding wheel assembly device according to any one of claims 1 to 3, wherein the plurality of (18) are provided at intervals of 90 degrees in the rotation direction of the grinding wheel support frame (9). .