CN201046464Y - Rolling Mill Cross Zero Calibration Measuring Device - Google Patents

Abstract

The utility model discloses a rolling mill cross zero calibration measuring device. The measuring device comprises a body and a depth gauge. The hole runs through the upper and lower sides of the main body; the two depth gauges are respectively inserted into the round holes at both ends of the main body and fixed with the main body. The measuring device uses a depth gauge to measure without professional measuring personnel. The measurement and calculation methods are simple and fast, the measurement data is highly accurate and the error is small; because the material of the body and the clamping block is aluminum alloy, the weight of the measuring device is light. It is easy to use and has good stability, which not only reduces labor intensity, but also improves work efficiency and economic benefits.

Description

Rolling Mill Cross Zero Calibration Measuring Device

technical field

The utility model relates to a rolling mill auxiliary equipment, more specifically, a rolling mill cross zero calibration measuring device, the measuring data of which is true and reliable.

Background technique

PC mill cross zero calibration is to measure the actual distance between the top reference plane of the PC mill cross head pad and the frame reference plane, and then compare it with the standard zero distance (see Figure 1), calculate the difference, and compare and give feedback Whether the value difference is within the specified range (the difference is generally less than or equal to 0.5mm), if it is not within the specified range, it is necessary to calibrate and correct the data according to the actual difference. Please refer to shown in Fig. 1, at present, special-purpose rolling mill cross zero calibration measuring device 10 is "П " structure, comprises crossbeam 11 and support frame 12, and crossbeam 11 lower end is provided with crossbeam datum plane 111; Two equal support stands 12 They are respectively arranged on both sides of the lower end of the beam 11, and are connected and fixed with the beam 11. When measuring, please refer to Fig. 2, the bottoms of the two supporting frames 12 of the measuring device are respectively set on the frame reference plane 1, and are closely attached to and fixed with the frame reference plane 1; then use the micrometer 2 to measure first The distance between the crossbeam datum plane 111 and the top datum plane 5 of the pad 4 of the crosshead 3, because the pad 4 of the crosshead 3 can swing, can rarely be in a position absolutely parallel to the crossbeam datum plane 111, so it needs to be in the crosshead 3 The symmetrical points on both sides of the spacer 4 are measured respectively, counted as a1 and a2 (unit: mm), and then the average value is calculated as a (not shown in the figure); The fixed distance L (generally 170mm) between the reference planes 121 minus the measured average value a, the result obtained is the actual distance between the top reference plane 5 of the crosshead 3 spacer 4 and the frame reference plane 1; finally pass It is compared with the standard zero distance H for calibration and correction.

Because the whole measuring device 10 is welded by channel steel and steel plate, the total weight is about 15kg, because the measuring device 10 itself is heavy, and the positions of all reference planes are actually lateral, (Fig. top view schematic diagram), therefore, in the measurement process, the measuring device 10 requires two measuring personnel to lift it up all the time, and makes the bottom of the two support frames 12 close to the frame datum plane 1 laterally, which is very inconvenient, and the measuring personnel often cannot If it is well supported, it is easy to shake, causing the bottom of the support frame 12 to not be well attached to the frame reference plane 1, resulting in serious distortion of the data a value; in addition, the micrometer 2 used to measure the a value needs to be measured by a special person, and it is easy to appear error, it is easier to distort the data.

Utility model content

In view of the shortcomings of the above-mentioned measuring device in the prior art that are heavy, measuring labor-intensive and easily distorted measurement data, the purpose of this utility model is to provide a rolling mill cross zero calibration measuring device, which is not only easy to use, but also The measurement data is accurate.

In order to achieve the above object, the utility model adopts the following technical solutions:

The rolling mill cross zero calibration measurement device includes:

The main body, the main body is a cuboid structure, with two protruding stops at the bottom, and round holes at both ends of the main body, and the round holes run through the upper and lower parts of the main body;

Depth gauge, two depth gauges are respectively inserted into the round holes at both ends of the body, and fixed with the body.

The two stop blocks are symmetrical, and the distance between the stop blocks corresponds to the length of the crosshead block of the rolling mill; the two round holes are also symmetrical.

The upper end of the body is also provided with a handle, the handle is a closed frame structure, and the lower end is connected and fixed with the body.

The two sides of the body are respectively provided with symmetrical legs, the bottom of the legs is level with the bottom of the body, and one end of the legs is connected and fixed to the side of the body.

The measuring device also includes clamping blocks, which are respectively arranged on both sides of the depth gauge, and screw holes are respectively provided at both ends of the clamping blocks, and every two clamping blocks are arranged oppositely, connected by bolts and nuts, And it is clamped and fixed with one side of the depth gauge and the main body.

The material of the body and the clamping block is aluminum alloy.

In the above technical solution, the rolling mill cross zero calibration measuring device of the present invention includes a body and a depth gauge. It runs through the upper and lower sides of the body; the two depth gauges are respectively inserted into the round holes at both ends of the body and fixed with the body. The measuring device uses a depth gauge to measure without professional measuring personnel. The measurement and calculation methods are simple and fast, the measurement data is highly accurate and the error is small; because the material of the body and the clamping block is aluminum alloy, the weight of the measuring device is light. It is easy to use and has good stability, which not only reduces labor intensity, but also improves work efficiency and economic benefits.

Description of drawings

Fig. 1 is the structural schematic diagram of the rolling mill cross zero calibration measuring device of the prior art;

Fig. 2 is the working state schematic diagram of the measuring device of prior art;

Fig. 3 is a structural exploded schematic view of the rolling mill cross zero calibration measuring device of the present invention;

Fig. 4 is a schematic structural view of the body of the measuring device of the present invention;

Fig. 5 is a schematic diagram of the working state of the measuring device of the present invention.

Detailed ways

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

Please refer to Fig. 3 and Fig. 4, the rolling mill cross zero calibration measuring device 20 of the present invention includes a main body 21 and a depth gauge 22, the main body 21 is a cuboid structure, and the bottom of the main body 21 and the top surfaces of the two ends of the main body 21 are finished. , to keep it flat and clean, and use the middle of the bottom as the positioning reference plane 211. It should be noted here that during processing, the distance tolerance and parallelism between the top surfaces of the two ends of the body 21 and the positioning reference plane 211 must be strictly guaranteed. The distance D (see FIG. 5 ) between the top surfaces of the two ends of the body 21 and the positioning reference plane 211 is extremely precise (the distance D is generally designed to be 20 mm and is better). Two protruding stop blocks 212 are also arranged on the bottom of the body, and the two stop blocks 212 are symmetrical, and the distance between the stop blocks 212 corresponds to the length of the cushion block 4 of the crosshead 3 of the rolling mill. The two ends of the body 21 are respectively provided with symmetrical round holes 213 , the round holes 213 pass through the upper and lower sides of the body 21 , and the diameter of the round holes 213 is larger than the diameter of the depth gauge 22 . The two depth gauges 22 are respectively inserted into the round holes 213 at both ends of the body 21 and passed out, and are connected and fixed with the body 21 . The upper end of the main body 21 is also provided with a handle 214. The handle 214 is a closed frame structure. The lower end of the handle 214 is welded and fixed with the main body 21 to form a whole, which is convenient for the measuring personnel to hold. Deformation occurs due to use, which affects measurement accuracy. Both sides of the body 21 are also respectively provided with symmetrical legs 215. There are two pairs of legs 215. The bottom of each leg 215 is flat with the bottom of the body 21. One end of the legs 215 is connected and fixed to the side of the body 21. The legs 215 ensure that the measuring device 20 When measuring, there will be no shaking due to its small thickness. The measuring device 20 also includes clamping blocks 23, the clamping blocks 23 are respectively arranged on both sides of the depth gauge 22, and the two ends of the clamping block 23 are respectively provided with screw holes 231, and every two clamping blocks 23 are arranged oppositely. The bolt 232 passes through the screw hole 231, and the nut 233 is tightened to connect the two clamping blocks 23, and the side of the support arm 221 on the depth gauge 22 and the body 21 are clamped and fixed between the two clamping blocks 23, as As shown in FIG. 3 , there are altogether eight clamping blocks 23 for clamping and fixing the two depth gauges 22 . In addition, the body 21 and the clamping block 23 are both made of hard aluminum alloy material, which is light in weight and can be lifted by a single person.

Please refer to Figure 5, when measuring, first hold the handle 214 and set the main body 21 on the pad 4 of the cross head 3 of the PC mill, so that the positioning reference plane 211 is closely attached to the top reference plane 5 of the pad 4 of the cross head 3 , and make the pad 4 of the intersection head 3 set between the two stop blocks 212, and be clamped with the two stop blocks 212, so as to ensure that the two points measured by the depth gauge 22 are centered and symmetrical, and finally ensure that the calculated average value is close to the real value Clamp and fix the depth gauge 22 by the clamping block 23 again, then stretch out the vernier 222 of the two depth gauges 22 respectively, until the vernier 222 pushes on the frame datum plane 1 respectively, then lock the vernier of the depth gauge 22 222. Read the scale values of two depth rulers 22 respectively at this moment, count as H1, H2, (H1, H2 are respectively the measuring distance between the top surface at the two ends of the body 21 and the top datum surface 5 of the cross head 3 cushion block 4 ); then by the formula H0=(H1+H2)÷2 calculate the average H0 (not shown in the figure); The distance D can be used to obtain the actual distance between the top datum plane 5 of the pad 4 of the rolling mill crosshead 3 and the frame datum plane 1, and finally compare it with the standard zero distance H for calibration and correction.

Because the measurement method of the prior art is to utilize the fixed parameter (distance L) of the measuring device to subtract the difference obtained by the measurement data to be the measured position, so the measured value is obtained indirectly; and the measurement method of the utility model utilizes the measurement The difference obtained by subtracting the fixed parameter (distance D) of the measuring device from the data is the measured position, so the measured value is obtained directly, the cumulative error is less compared with the prior art, and the distance D is much smaller than the distance L, making this The processing error of the utility model is also much smaller, and because the depth gauge is easy to use and does not require professionals, the measurement data is more accurate and real. In addition, because the material of the utility model is light and light, the use is very convenient, the labor intensity is greatly reduced, the measurement speed is further improved, and the measurement time is more than doubled, so the effect is obvious.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the utility model, rather than as a limitation to the utility model, as long as within the spirit of the utility model, the above-mentioned The changes and modifications of the embodiments will all fall within the scope of the claims of the present utility model.

Claims (6)

1. A rolling mill cross zero calibration measurement device, characterized in that, The measuring device consists of: The main body, the main body is a cuboid structure, with two protruding stops at the bottom, and round holes at both ends of the main body, and the round holes run through the upper and lower parts of the main body; Depth gauge, two depth gauges are respectively inserted into the round holes at both ends of the body, and fixed with the body. 2. The rolling mill cross zero calibration measuring device according to claim 1, characterized in that: The two stop blocks are symmetrical, and the distance between the stop blocks corresponds to the length of the crosshead block of the rolling mill; the two round holes are also symmetrical. 3. The rolling mill cross zero calibration measuring device according to claim 1, characterized in that: The upper end of the body is also provided with a handle, the handle is a closed frame structure, and the lower end is connected and fixed with the body. 4. The rolling mill cross zero calibration measuring device according to claim 1, characterized in that: The two sides of the body are respectively provided with symmetrical legs, the bottom of the legs is level with the bottom of the body, and one end of the legs is connected and fixed to the side of the body. 5. The rolling mill cross zero calibration measuring device according to claim 1, characterized in that: The measuring device also includes clamping blocks, which are respectively arranged on both sides of the depth gauge, and screw holes are respectively provided at both ends of the clamping blocks, and every two clamping blocks are arranged oppositely, connected by bolts and nuts, And it is clamped and fixed with one side of the depth gauge and the main body. 6. The rolling mill cross zero calibration measurement device according to any one of claims 1-5, characterized in that: The material of the body and the clamping block is aluminum alloy.

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