CN209868137U - Roll diameter and taper on-site measuring device based on roll grinder - Google Patents
Roll diameter and taper on-site measuring device based on roll grinder Download PDFInfo
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- CN209868137U CN209868137U CN201920585774.3U CN201920585774U CN209868137U CN 209868137 U CN209868137 U CN 209868137U CN 201920585774 U CN201920585774 U CN 201920585774U CN 209868137 U CN209868137 U CN 209868137U
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- guide rail
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- grinding wheel
- measuring
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Abstract
The utility model discloses a roll diameter and tapering measuring device on throne based on roll grinder, this measuring device can increase the dress on the grinding machine wheel carrier, folds at ordinary times, does not interfere and influences normal grinding process, and this measuring device mainly comprises one-dimensional precision workbench, measurement bow, laser displacement sensor and size calibration pole. When the device is used, the measuring bow is opened, the device moves to the measured size along with the grinding carriage to complete the measurement of the related size, and the roll taper is calculated. The utility model belongs to non-contact, jumbo size, high accuracy are at the position and are measured, have effectively realized the real time monitoring of machining size in the roll grinding, especially when last feed, can provide accurate cutting depth value. The device is simple and reliable.
Description
Technical Field
The utility model belongs to the technical field of roll grinder, specifically relate to a roll diameter and tapering measuring device on throne based on roll grinder.
Background
The roller is important technical equipment in the manufacturing fields of paper making, cement, steel and the like, is easy to be out of tolerance when the outer circle and the conical surface of the roller are precisely ground, and the conical surface is a bearing mounting surface. A traditional roll grinder is not provided with a measuring system, after feeding every time, a large micrometer needs to be manually adopted to measure the size of a processed roll so as to determine the cutting depth in the next feed, and the method is greatly influenced by subjective factors of a measurer, has low measuring precision and cannot realize accurate measurement of the conical surface taper on the roll.
The utility model with publication number CN2709930 discloses a portable high-precision intelligent roller shape measuring instrument, which is provided with a cylindrical guide rail on a measuring seat of a saddle vehicle, and a sliding arm can move on the guide rail. The diameter measuring sensing mechanism and the gravity hammer are respectively arranged at the front and the rear of the diameter aligning position of the sliding measuring arm and the roller so as to ensure that the end part of the instrument heavy hammer is always in contact with the surface of the roller. The instrument can move on the roller body along the axis, the pulse length measuring mechanism on the measuring arm can measure the movement amount of the measuring arm along the direction of the roller axis, and meanwhile, the sensor on the diameter measuring sensing mechanism measures the variation of the roller diameter. However, the measuring device is in multipoint contact with the roller to be measured, and has the defect that the surface of the roller can be scratched; the non-vertical state of the measuring arm body, the gap between the measuring arm and the guide rail sliding frame and the like can cause that the actually obtained measured value is not the diameter value of the roller, thereby causing errors.
The foreign non-contact roller measuring system is an ultrasonic roller distance meter developed by the heavy industry of Mitsubishi Japan. The principle is that a plurality of ultrasonic distance meters are arranged along the axial direction of the roller, and the roller shape is reflected by measuring the distance between the roller surface and a sensor. In order to make the medium between the roll surface and the sensor uniform and improve the detection precision, a water spraying mode is often adopted. The measuring method for detecting the roller shape of the roller by ultrasonic waves is free from ambient light and electromagnetic interference, large in working clearance and capable of adapting to severe environments to a certain extent. However, the measurement accuracy is limited, the interference caused by factors such as sound velocity, bubbles in water, water flow and the like is large, and the anti-interference capability is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a roll diameter and tapering measuring device on throne based on roll grinder to avoid contact measurement probably to cause damage, increase measurement interference killing feature to roll surface, improve measurement accuracy.
The purpose of the utility model can be realized by the following technical scheme:
a roll diameter and taper in-situ measuring device based on a roll grinder comprises the roll grinder, a linear guide rail, a workbench and a measuring bow, wherein the linear guide rail is fixed on the surface of a grinding carriage;
a Y-axis guide rail is fixed on the surface of the roll grinder, a grinding wheel slide block is slidably mounted on the surface of the grinding wheel slide block, an X-axis guide rail is fixed on the surface of the grinding wheel slide block, a grinding carriage is slidably mounted on the surface of the grinding wheel slide block, and a grinding wheel is movably mounted on the end face of the grinding carriage;
a supporting table is vertically fixed on the surface of the roll grinder, and a roll workpiece to be measured is fixed between the two supporting tables which are arranged oppositely through a spindle of the roll grinder;
a square support table is vertically fixed on the surface of the linear guide rail, a screw rod penetrates through the surface of the square support table, and one end of the screw rod is connected with a stepping motor through a coupler;
the surface of the linear guide rail is provided with a workbench in a sliding manner, one surface of the workbench is fixed with a sliding block, the sliding block is connected with the linear guide rail in a sliding manner, and the other surface of the workbench is fixed with a hinge;
positioning pins are vertically fixed on the outer surface of the peripheral side of the measuring bow and are hinged with the hinges;
the inner surface of the measuring bow around the side is provided with a supporting hole, and the end surface is fixed with a sensor.
Furthermore, the grinding wheel slide block is connected with the Y-axis guide rail in a sliding mode, and the side surface of the grinding carriage is connected with the X-axis guide rail in a sliding mode.
Further, two square support platforms are oppositely arranged on the surface of the linear guide rail.
Further, the linear guide rail comprises a support plate and two parallel guide rails vertically fixed on the surface of the support plate.
Furthermore, the sensors are laser displacement sensors, and two sensors are fixed on two opposite end faces of the measuring bow.
Further, the roll diameter and taper in-situ measurement method based on the roll grinder is characterized by comprising the following steps:
s1, calibrating the distance between the two sensors by using a standard rod with the length of n, and obtaining a distance calibration value L between the two laser displacement sensors as follows: l is a + n + b, and a and b are respectively the measured values of the two sensors for the rod end of the standard rod;
s2, detecting the roller to be detected by using the sensors, obtaining the diameter position measurement values of the two sensors for the roller to be detected as a1 and b1 respectively, and calculating the diameter D of the roller to be detected as follows: D-L-a 1-b 1;
and S3, moving the grinding carriage along the Y-axis guide rail, recording the displacement X, respectively recording the detection diameters D1 and D2 of the two sensors at the positions of the two end points of the grinding carriage for the roller to be detected, and calculating the taper C as C-C (D1-D2)/X.
Further, the grinding carriage moves along the X-axis guide rail according to the measured section of the roller to be measured, and the minimum value of the measured values of the two sensors is determined to be a1 and b 1.
Further, the displacement is obtained according to the input pulse number of the stepping motor and the screw pitch value of the screw rod.
The utility model has the advantages that:
1. compared with a contact type roll shape instrument, the utility model realizes non-scale and non-contact measurement, and avoids the damage to the surface of the roll caused by contact measurement;
2. the main structure of the measuring system in the utility model can be folded and folded, the limited space on the machine tool is skillfully utilized for installation, and the normal cutting of the machine tool is not interfered and influenced;
3. the utility model adopts the laser displacement sensing based on the trigonometry, which is configured in pairs and is used for differential measurement, thereby basically eliminating the influence of workpiece eccentricity, rack deformation and other structures and assembly errors on the measurement result and ensuring the measurement precision;
4. in the measurement of the utility model, the grinding carriage drives the measuring bow to move radially to look for an inflection point, so that the diameter of the shaft can be automatically and accurately identified, and the accurate measurement can be completed;
5. the utility model discloses simple structure, it is with low costs, easy installation, easy operation, easy enterprise's implementation.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the grinding position of the present invention.
Fig. 3 is a schematic view of the installation structure of the present invention.
Fig. 4 is a schematic diagram of the calibration of the present invention.
Fig. 5 is a schematic diagram of the roller diameter measurement of the present invention.
Fig. 6 is a schematic diagram of the roller taper measurement of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
A roll diameter and taper in-situ measuring device based on a roll grinder comprises a linear guide rail 1, a workbench 2 and a measuring bow 9, wherein the linear guide rail 1 is fixed on the surface of a grinding carriage 15, as shown in figures 1 and 2;
it should be noted that a Y-axis guide rail is fixed on the surface of the roll grinder 12, and a grinding wheel slider 19 is slidably mounted on the surface of the grinding wheel slider 19, an X-axis guide rail is fixed on the surface of the grinding wheel slider 19, a grinding carriage 15 is slidably mounted on the surface of the grinding wheel slider 19, and a grinding wheel 16 is movably mounted on the end surface of the grinding carriage 15, as shown in fig. 3;
preferably, the grinding wheel slide block 19 is in sliding connection with a Y-axis guide rail, and the side surface of the grinding carriage 15 is in sliding connection with an X-axis guide rail;
preferably, the Y-axis guide rail and the X-axis guide rail are vertically distributed;
it should be noted that a supporting table is vertically fixed on the surface of the roll grinder 12, and a roll workpiece 14 to be measured is fixed between two supporting tables which are arranged oppositely through a main shaft 13 of the roll grinder;
a square support table 18 is vertically fixed on the surface of the linear guide rail 1, a screw rod 5 is installed on the surface of the square support table 18 in a penetrating mode, and one end of the screw rod 5 is connected with a stepping motor 7 through a coupler 6;
specifically, two square support tables 18 are oppositely arranged on the surface of the linear guide rail 1;
specifically, the linear guide rail 1 comprises a support plate and two parallel guide rails vertically fixed on the surface of the support plate;
it should be noted that the stepping motor 7 drives the moving table 2 to horizontally move along the linear guide rail 1 through the screw rod 5;
the surface of the linear guide rail 1 is provided with a workbench 2 in a sliding manner, the workbench 2 is a square plate, one surface of the workbench 2 is fixed with a sliding block 4, the sliding block 4 is connected with the linear guide rail 1 in a sliding manner, and the other surface of the workbench is fixed with a hinge 3;
a positioning pin 11 is vertically fixed on the outer surface of the peripheral side of the measuring bow 9, and the positioning pin 11 is hinged with the hinge 3;
it should be noted that the positioning pin 11 is hinged to the hinge 3, so that the measuring bow 9 has two different status positions, namely a measuring position and a grinding position, and the measuring position is that in the measuring state, the plane of the measuring bow 9 is parallel to the cross section of the roller workpiece 14 to be measured; the grinding position is that the plane of the measuring bow 9 is parallel to the moving plane of the moving workbench 2 in a grinding state;
it should be noted that the measuring bow 9 and the sensor 8 can rotate 90 degrees around the hinge 3, during the normal grinding process, the measuring bow 9 is folded and retracted, the grinding processing is stopped, when the workpiece is to be measured, the measuring bow 9 is opened and locked at the measuring position by the positioning pin 11, and meanwhile, the grinding carriage 15 moves to drive the measuring bow 9 to the surface of the workpiece 14 of the roller to be measured to complete the measurement;
preferably, the cross section of the measuring bow 9 is a semicircular ring, and circular through holes are uniformly distributed on the surface;
the inner surface of the circumference of the measuring bow 9 is provided with a supporting hole 10, and the end surface is fixed with a sensor 8;
specifically, the sensors 8 are laser displacement sensors, and two sensors 8 are fixed on two opposite end faces of the measurement bow 9;
the laser displacement sensors are used for performing differential measurement on the roller workpiece 14 to be measured, the two laser displacement sensors are based on the trigonometry principle, non-contact high-precision measurement is performed by adopting differential reading, and error factors such as installation eccentricity of the measured piece do not influence the measurement result;
the laser displacement sensor can realize non-contact remote measurement, has high speed, high precision, large range and strong anti-optical and electric interference capability, can be divided into a laser triangulation method and a laser echo analysis method according to the principle, measures the diameter and the taper of the roller on the grinding site of the roller, belongs to high-precision and short-distance measurement, selects the laser displacement sensor of the laser triangulation method, adopts differential reading to carry out non-contact high-precision measurement by the two sensors, and does not influence the measurement result by the error factors such as the installation eccentricity of a measured piece, the stress deformation of a measuring bow and the like;
as shown in fig. 4-6, a method for measuring the diameter and taper of a roller in-situ based on a roller grinder comprises the following steps:
s1, calibrating the distance between the two sensors 8 by using the standard rod 17 with the length of n, and obtaining a distance calibration value L between the two laser displacement sensors 8 as follows: l is a + n + b, and a and b are respectively the measured values of the two sensors 8 for the rod end of the standard rod 17;
it should be noted that the diameter measurement method is relative measurement, a standard rod 17 is adopted for calibration before measurement, the distance n between two end faces of the standard rod 17 is known, the standard rod 17 is a quartz rod, the thermal expansion coefficient is small, and the diameter of the roller workpiece is obtained by comparing the measured value of the sensor with the standard value of the standard rod;
s2, detecting the roller to be detected by the sensors 8, obtaining the diameter position measurement values of the two sensors 8 aiming at the roller to be detected as a1 and b1 respectively, and calculating the diameter D of the roller to be detected as follows: D-L-a 1-b 1;
specifically, the grinding carriage 15 moves along the X-axis guide rail according to the measured section of the roll to be measured, and the minimum value of the measured values of the two sensors 8 is determined, namely a1 and b 1;
s3, moving the grinding carriage 15 along the Y-axis guide rail, recording displacement X, recording the detection diameters D1 and D2 of the two sensors 8 at the positions of two end points of the grinding carriage 15 aiming at the roller 14 to be detected, and calculating the taper C to be (D1-D2)/X;
specifically, the displacement is obtained according to the input pulse number of the stepping motor 7 and the pitch value of the screw rod 5;
it should be noted that, if the requirement for the processing precision is high, a long grating can be additionally arranged on the one-dimensional precision displacement table for measurement, so that the movement amount can be more accurately obtained;
one specific implementation of this embodiment includes the following steps:
before measurement starts, a standard rod 17 is arranged in the support hole 10, and the standard rod 17 with the length of n is calibrated according to the distance between the two sensors 8; a is the distance measurement value from the left sensor 8 to the left end face of the standard rod 17, and b is the distance measurement value from the right sensor 8 to the right end face of the standard rod 17; the distance calibration L between the two sensors 8 is obtained as: after the calibration is finished, the standard rod 17 is taken down, calibration is not needed before each measurement, and only regular calibration is needed in actual use;
during measurement, the measuring bow 9 is rotated to be vertical to the roller workpiece 14 to be measured through the hinge 3 for measurement;
the grinding carriage 15 drives the measuring bow 9 to slowly move along the radial direction of the roller to search for a diameter inflection point, at the moment, the laser displacement sensor 8 continuously reads readings a and b, when the minimum value occurs, the computer stores the reading as measuring data, and the diameter of the roller workpiece 14 to be measured is recorded as: D-L-a 1-b1, and the computer gives a prompt and the operator stops the transverse feeding of the grinding carriage;
when taper measurement is performed, after a diameter D1 of a position is measured, the stepping motor 7 drives the workbench 2 to horizontally move to a position B along the axial direction, a diameter D2 is obtained, the displacement X of the measurement bow 9 can be obtained by combining the input pulse of the stepping motor 7 and the screw pitch of the screw rod 5, and then the taper of the roller workpiece 14 to be measured is recorded as C: c ═ (D1-D2)/X;
after the measurement is finished, the measuring bow 9 is retracted and placed in parallel with the grinding wheel frame 15 and is locked by the pin bolt 11, so that accidents caused by the fact that the measuring bow rotates loosely in the process of cutting the machine tool are prevented.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The roll diameter and taper on-site measuring device based on the roll grinder comprises a roll grinder (12) and is characterized by further comprising a linear guide rail (1), a workbench (2) and a measuring bow (9), wherein the linear guide rail (1) is fixed on the surface of a grinding carriage (15);
a Y-axis guide rail is fixed on the surface of the roll grinder (12), a grinding wheel slide block (19) is slidably mounted on the surface of the grinding wheel slide block (19), an X-axis guide rail is fixed on the surface of the grinding wheel slide block (19), a grinding wheel frame (15) is slidably mounted on the surface of the grinding wheel slide block (19), and a grinding wheel (16) is movably mounted on the end face of the grinding wheel frame (15);
a supporting table is vertically fixed on the surface of the roll grinder (12), and a roll workpiece (14) to be measured is fixed between the two supporting tables which are arranged oppositely through a roll grinder spindle (13);
a square support table (18) is vertically fixed on the surface of the linear guide rail (1), a screw rod (5) is installed on the surface of the square support table (18) in a penetrating mode, and one end of the screw rod (5) is connected with a stepping motor (7) through a coupler (6);
the surface of the linear guide rail (1) is provided with a workbench (2) in a sliding manner, one surface of the workbench (2) is fixed with a sliding block (4), the sliding block (4) is connected with the linear guide rail (1) in a sliding manner, and the other surface of the workbench is fixed with a hinge (3);
the outer surface of the peripheral side of the measuring bow (9) is vertically fixed with a positioning pin (11), and the positioning pin (11) is hinged with the hinge (3);
the inner surface of the peripheral side of the measuring bow (9) is provided with a supporting hole (10), and the end surface is fixed with a sensor (8).
2. The roll grinder-based roll diameter and taper in-situ measurement device according to claim 1, wherein: the grinding wheel slide block (19) is in sliding connection with the Y-axis guide rail, and the side surface of the grinding wheel frame (15) is in sliding connection with the X-axis guide rail.
3. The roll grinder-based roll diameter and taper in-situ measurement device according to claim 1, wherein: two square supporting platforms (18) are oppositely arranged on the surface of the linear guide rail (1).
4. The roll grinder-based roll diameter and taper in-situ measurement device according to claim 1, wherein: the linear guide rail (1) comprises a support plate and two parallel guide rails vertically fixed on the surface of the support plate.
5. The roll grinder-based roll diameter and taper in-situ measurement device according to claim 1, wherein: the sensor (8) is a laser displacement sensor, and two sensors (8) are fixed on two opposite end faces of the measuring bow (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585774.3U CN209868137U (en) | 2019-04-26 | 2019-04-26 | Roll diameter and taper on-site measuring device based on roll grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585774.3U CN209868137U (en) | 2019-04-26 | 2019-04-26 | Roll diameter and taper on-site measuring device based on roll grinder |
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| Publication Number | Publication Date |
|---|---|
| CN209868137U true CN209868137U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920585774.3U Expired - Fee Related CN209868137U (en) | 2019-04-26 | 2019-04-26 | Roll diameter and taper on-site measuring device based on roll grinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000639A (en) * | 2019-04-26 | 2019-07-12 | 合肥工业大学 | A kind of roller diameter based on roll grinder and taper on-position measure device and measurement method |
| CN113028995A (en) * | 2021-04-23 | 2021-06-25 | 慧诚自动化技术(宁波)有限公司 | Automatic detection device for detecting surface run-out degree of medium-large workpiece |
-
2019
- 2019-04-26 CN CN201920585774.3U patent/CN209868137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000639A (en) * | 2019-04-26 | 2019-07-12 | 合肥工业大学 | A kind of roller diameter based on roll grinder and taper on-position measure device and measurement method |
| CN113028995A (en) * | 2021-04-23 | 2021-06-25 | 慧诚自动化技术(宁波)有限公司 | Automatic detection device for detecting surface run-out degree of medium-large workpiece |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20200426 |