TWI817774B - Preceding procedure for calibration of double mandrels of grinding machine - Google Patents

Abstract

The present disclosure provides a preceding procedure for calibration of double mandrels of grinding machine. Two elongated jigs are mounted around a mandrel of a grinding head seat and a mandrel of a grinding tail seat, thereby omitting the previous steps of moving the stable support of the grinding machine for saving labor, saving time, and improving work safety.

Description

Grinding machine double center correction pre-operation method

The present disclosure relates to a correction pre-operation method, and in particular to a grinding machine double-center correction pre-operation method.

After the roll has been used for a period of time, the fatigue layer of the roll needs to be removed by grinding with a grinder. In order to prevent the roll from being eccentric during grinding, the grinder needs to perform regular calibration of the double centers of the roll and the grinder.

It is necessary to perform pre-calibration operations before performing calibration operations. The pre-calibration operation is to lift and remove the tractor of the grinder headstock and the buffer of the grinder tailstock. Then, the staff manually removed the water shield of the grinder. Then manually adjust the stabilizing bracket on the drive side of the grinder and the stabilizing bracket on the grinder operation test. Next, manually adjust the grinder tailstock so that the stabilizing bracket and grinder tailstock move toward the grinder headstock to compensate for the thickness of the removed tractor and buffer. Subsequently, the roll can be lifted to the grinding machine where the pre-correction work has been completed for correction work.

However, the screws of the stabilizing arm are easily corroded by the moisture in the working environment, and the screws are not easy to remove, so the stabilizing arm is difficult to adjust and move. In addition, the side of the stabilizing bracket is wet and oily, so when workers manually adjust the stabilizing bracket, work safety accidents are prone to occur.

In addition, if the moving distance between the stabilizing bracket and the grinder tailstock during the correction operation is insufficient, the grinder headstock and grinder tailstock during the correction operation will be extended to the maximum value, and the double top center will still not be able to push the roll. At this time, the stabilizing frame needs to be moved to adjust the distance. Because the roller is still on the stabilizing frame, it is not easy for the staff to move the stabilizing frame.

Therefore, one of the purposes of this disclosure is to provide a pre-operation method for double center correction of a grinder, which can simplify the operation steps and improve work safety.

According to the above-mentioned purpose of the present disclosure, a pre-operation method for double-center correction of a grinder is proposed, which includes a disassembly step and an installation step. In the disassembly step, the tractor of the grinder headstock and the buffer of the grinder tailstock are lifted and removed, so that the center of the grinder headstock and the center of the grinder tailstock are exposed. In the installation step, the extension jig is set on the top center of the grinder headstock and the top center of the grinder tailstock, and the extension jig is used to compensate for the thickness of the removed tractor and buffer. Among them, during the disassembly step and the installation step, the stabilizing bracket of the grinder remains stationary.

According to one embodiment of the present disclosure, the elongated jig includes a body. A recess is formed on one side of the body to provide a corresponding top center to extend into the recess. An end is formed on the other side of the body, and a grinder headstock is set on the elongated jig. After the top center of the grinder is connected to the top center of the grinder tailstock, the end of the extended jig is located on the axis extension line of the corresponding top center.

According to an embodiment of the present disclosure, the contour of the recess matches the contour of the corresponding top center.

According to an embodiment of the present disclosure, the contour of the recess is tapered and tapers toward the end.

According to an embodiment of the present disclosure, the distance from the end to the recess is a compensation thickness.

According to an embodiment of the present disclosure, the compensation thickness is 14 centimeters.

According to an embodiment of the present disclosure, the sum of the compensation thickness of the elongated fixture is less than the sum of the thickness of the dismantled tractor and the thickness of the buffer.

According to one embodiment of the present disclosure, the pre-operation method for double-center correction of a grinder includes a placing step of placing the roller on a stable support frame, with the opposite ends of the roller facing the extended jig respectively, and between the roller and the extended jig. Create a buffer gap.

According to an embodiment of the present disclosure, the buffer distance is 2 centimeters.

According to an embodiment of the present disclosure, during the disassembly step and the installation step, the water retaining plate of the grinder is located between the stabilizing brackets.

In the installation step of this disclosure, the extended jig is set on the top center, and the extended jig is used to compensate for the thickness of the dismantled tractor and the thickness of the buffer, thereby eliminating the need for manual adjustment of the mobile stabilizing support and the grinder tailstock in the past. steps. Therefore, the disclosed pre-operation method for double-center correction of the grinder simplifies the operation steps and can achieve the purpose of saving labor and time and improving work safety.

Please refer to FIG. 1 , which is a schematic flowchart of a pre-operation method for double center correction of a grinder according to an embodiment of the present disclosure. The method 100 includes a disassembly step 101 and an installation step 102 . In some examples, method 100 may further include placing step 103 . Please refer to FIG. 2 . After completing the preparatory operation method of the double center correction of the grinder, the calibration operation of the roller 300 and the double center 203 of the grinder 200 can be performed.

In the disassembly step 101, the tractor of the grinder headstock 201 and the buffer of the grinder headstock 201 are removed by crane lifting. By removing the tractor, the top center 203 of the grinder headstock 201 is exposed. In addition, by removing the buffer, the top center 203 of the grinder tailstock 202 is exposed.

After the disassembly step 101 is completed, the installation step 102 is then performed, and the extension jig 204 is respectively set on the top center 203 of the grinder headstock 201 and the top center 203 of the grinder tailstock 202 . The set extension jig 204 is used to compensate for the thickness of the tractor and the thickness of the buffer removed in the disassembly step 101 .

By using the elongated jig 204 as an extension of the top center 203, the distance between the elongated jig 204 on the top center 203 of the grinder headstock 201 and the elongated jig 204 on the top center 203 of the grinder tailstock 202 is approximately The distance between the tractor and the buffer before removal. In other words, the spacing between the elongated jigs 204 is approximately the length of the roll 300 . Therefore, the extended jig 204 is used to set the top center 203 of the grinder headstock 201 and the top center 203 of the grinder tailstock 202 to adjust the distance between the two top centers 203, and there is no need to manually move the stabilizing support frame 205 and the grinder. Tailstock 202 steps.

Please refer to FIG. 3 . The elongated jig 204 includes a body 2041 , a recess 2042 is formed on one side of the body 2041 , and an end 2043 is formed on the other side of the body 2041 . In one example, the distance from the end 2043 to the recess 2042 is the compensation thickness 204t. In one example, if the preset distance between the roll 300 and the top center 203 is 16 centimeters, the lengthened jig 204 can use a compensation thickness 204t of 14 centimeters. In one example, the sum of the compensation thickness 204t of the elongated fixture 204 is less than the sum of the thickness of the removed tractor and the thickness of the buffer.

Among them, you can first use computer software to draw the 3D graphics of the extended jig 204, further calculate the interference and assembly of each part, and adjust the size of the extended jig 204, so that the extended jig 204 produced according to the drawing can be smoothly Cooperate with top center 203. Referring to FIG. 3 , the top center 203 corresponding to the elongated jig 204 can extend into the recess 2042 . Further, the contour 2042c of the recess 2042 matches the corresponding contour 203c of the top center 203, so that the outer surface of the top center 203 extending into the recess 2042 abuts the inner surface of the recess 2042. In one example, since the profile 203c of the top center 203 is generally tapered, the profile 2042c of the recess 2042 is generally tapered and tapered toward the end 2043. After the top center 203 extends into the recess 2042, the top center 203 contacts The recessed portion 2042 allows the extended jig 204 to be firmly mounted on the top core 203 . As shown in FIG. 3 , after the extension fixture 204 is sleeved on the top center 203 , the end 2043 of the extension fixture 204 will be located on the axis extension line 203L of the top core 203 . In other words, the end 2043 of the elongated jig 204 can be regarded as an extension of the top center 203 along the axis extension line 203L.

After the installation step 102 is completed, the placing step 103 can be performed. The roller 300 is placed on the stable support 205 of the grinder 200 , with the opposite ends of the roller 300 respectively facing the extended jig 204 set on the double top centers 203 . In one example, if the distance between the roll 300 and the top center 203 is 16 cm, as shown in FIG. 3 , the extended jig 204 with a compensation thickness 204t of 14 cm is used. Refer again to the diagram shown in FIG. 4 The enlarged schematic diagram of part A of 2 shows that a buffer distance 203s of 2 cm can be formed between the roller 300 and the extended jig 204 . Therefore, in the subsequent calibration operation, the top center 203 of the grinder headstock 201 and the top center 203 of the grinder tailstock 202 do not need to be extended too much, so that the extended jig 204 can move beyond the buffer distance 203s, so that the extended jig 204 can move smoothly Withstand the roller 300. In other words, the top center 203 does not need to move 16 centimeters, but only needs to move 2 centimeters.

In addition, in the removal step 101, the installation step 102 and the placement step 103, there is no need to move the stabilizing brackets 205, so the water retaining plates (not shown) between the stabilizing brackets 205 do not need to be removed, either. Streamlined Method 100 Steps.

After completing the preparatory work method of grinding machine double center correction, the calibration work of the roll 300 can be started, so that the grinder headstock 201 and the grinder tailstock 202 both support the roll 300 through the extended jig 204. Then use a thickness gauge to measure the gap between the extension jig 204 and the roller 300 . Then adjust the babbitt alloy on the stabilizing bracket 205 so that the roller 300 and the end 2043 of the extended jig 204 fit up, down, left, and right. Then use a dial indicator to confirm whether the gap between the extension jig 204 and the roller 300 is within plus or minus 3 lines. If the gap is within plus or minus 3 lines, the correction operation is completed. If the gap is not within plus or minus 3 bars, you need to repeat the calibration steps until the gap is adjusted to within plus or minus 3 bars.

As can be seen from the above embodiments, one of the advantages of the present disclosure is that the method of the present disclosure can simplify the operation steps. As long as the extended jig is set on the top center during the installation step, manual adjustment of the mobile stabilizing bracket and the grinder can be omitted. Tailstock steps. By simplifying the operating steps, labor and time can be saved, and manual pushing of the stabilizing frame can be avoided, further improving work safety.

Another advantage of the present disclosure is that because the extension fixture is set on the top center, it can be used as an extension of the top center. During subsequent correction operations, within the allowed movement limits, the double top center can be pushed against the roll by lengthening the jig. Therefore, workers do not need to move the stabilizing bracket while the stabilizing bracket is carrying the rollers, thus avoiding the labor-consuming and time-consuming situation of moving the stabilizing bracket during subsequent calibration operations.

Although the present disclosure has been disclosed through embodiments, they are not intended to limit the present disclosure. Anyone with ordinary knowledge in this technical field can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of the appended patent application.

100:Method

101: Disassembly steps

102:Installation steps

103: Placement steps

200:Grinder

201:Grinder headstock

202:Grinder tailstock

203: Top of mind

203c:Contour

203L: Axis extension line

203s: buffer spacing

204: Extended jig

204t: Compensation thickness

205: Stabilizing bracket

300:Roller

2041:Ontology

2042: concave part

2042c:Contour

2043:End

A: part

In order to make the above and other objects, features, advantages and embodiments of the present disclosure more obvious and understandable, the accompanying drawings are described as follows: [Figure 1] is a schematic flowchart illustrating a pre-operation method for double center correction of a grinder according to an embodiment of the present disclosure; [Fig. 2] is a schematic diagram of a device in which an extended jig is set on a double top center and a roll is placed on a grinder according to an embodiment of the present disclosure; [Figure 3] is a schematic cross-sectional view of an elongated jig set on the top center according to an embodiment of the present disclosure; and [Fig. 4] is an enlarged schematic diagram showing part A of Fig. 2.

Domestic storage information (please note in order of storage institution, date and number) without Overseas storage information (please note in order of storage country, institution, date, and number) without

100:Method

101: Disassembly steps

102:Installation steps

103: Placement steps

Claims (10)

A pre-operation method for double center correction of a grinder, including: A disassembly step is to lift and remove a tractor of a grinder headstock and a buffer of a grinder tailstock, so that a top center of the grinder headstock and a top center of the grinder tailstock are exposed; and An installation step is to set two extended jigs on the top center of the grinder headstock and the top center of the grinder tailstock respectively, and use these extended jigs to compensate for the thickness of the removed tractor and the buffer. a thickness; Wherein, during the disassembly step and the installation step, a plurality of stable brackets of a grinder remain motionless. The pre-operation method for correcting the double top center of a grinder as described in claim 1, wherein each of the elongated fixtures includes a body, and a recess is formed on one side of the body to provide the corresponding top center to extend into The recess forms an end portion on the other side of the body. After the elongated jigs are respectively sleeved on the top center of the grinder headstock and the top center of the grinder tailstock, each of the elongated jigs The end is located on an axis extension line corresponding to the top center. The pre-operation method for correcting the double center of a grinder as described in claim 2, wherein in each of the elongated fixtures, a contour of the recess matches a corresponding contour of the center. The pre-operation method for grinding machine double center correction as described in claim 3, wherein in each of the elongated fixtures, the contour of the recess is tapered and tapered toward the end. The pre-operation method for grinding machine double center correction as described in claim 2, wherein in each of the extended fixtures, the distance from the end to the recess is a compensation thickness. The front-end operation method for grinding machine double center correction as described in claim 5, wherein the compensation thickness is 14 centimeters. The grinding machine double center correction pre-operation method as described in claim 5, wherein the sum of the compensation thicknesses of the extended fixtures is less than the sum of the thickness of the removed tractor and the thickness of the buffer . The grinding machine double center correction pre-operation method as described in claim 1 further includes a placing step of placing a roller on the stable supports, and the opposite ends of the roller face the extended jigs respectively, And a buffer distance is formed between the roller and each of the extended jigs. As claimed in claim 8, the front-end operation method for grinding machine double center correction, wherein the buffer distance is 2 centimeters. The pre-operation method for double-center correction of a grinder as described in claim 1, wherein in the disassembly step and the installation step, a water retaining plate of the grinder is located between the stabilizing brackets.

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