CN119282823B - Rolling linear guideway auxiliary guideway profile detection device and use method - Google Patents
Rolling linear guideway auxiliary guideway profile detection device and use method Download PDFInfo
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Abstract
The application discloses a rolling linear guide rail pair guide rail profile detection device and a use method, wherein an upper line laser sensing system and two lateral line laser sensing systems are arranged on a detection bearing table, the lateral line laser sensing systems are adjustable in position in the width direction of the detection bearing table, a reflection pyramid prism is detachably arranged on a horizontal bearing table, a laser receiving and transmitting part is arranged corresponding to the reflection pyramid prism, the rolling linear guide rail pair guide rail profile detection device and the use method provided by the application can be used for detecting the rolling linear guide rail pair in the length direction by a measuring system through the work of a horizontal moving system, the positions of the two lateral line laser sensing systems in the width direction of the detection bearing table are adjustable, the rolling linear guide rail pair corresponding to different width types can be matched with the rolling linear guide rail pair corresponding to different height types through a vertical moving system, and the error of the working position of the horizontal moving system deviating from the length direction of a lathe bed in the horizontal and vertical directions is identified through a straightness compensation system, and compensation is carried out.
Description
Technical Field
The invention relates to the field of guide rail profile index detection, in particular to a rolling linear guide rail pair guide rail profile detection device and a use method.
Background
The rolling linear guide rail pair plays an important role in various fields and has the advantages of high guide precision, good bearing performance and good motion stability.
The rolling linear guide rail pair has exquisite design and consists of a guide rail, a sliding block, a ball or a steel ball and other core components. These components are precisely machined and assembled to ensure high precision and smooth operation of the guide rail pair. The sliding block forms rolling contact with the guide rail through built-in balls or steel balls, so that low-friction and high-efficiency linear motion is realized. The rolling linear guide rail pair also has good bearing capacity and impact resistance, and can cope with various complex working environments and load changes. In the application field, the wide application of the rolling linear guide rail pair is beneficial to the fields of industrial production, transportation systems, medical equipment, electronic equipment and the like. Under the premise that the requirements of high-performance machine tools on speed, precision and reliability are higher and higher, sliding guide rails are gradually replaced, and higher use amount is obtained in the mechanical market.
In the field of guide rail profile index detection, no universal and efficient detection method exists at home, and at present, a traditional dial gauge measurement method is still adopted, and is limited by the technical level of detection personnel, the influence of uncertain factors such as human factors and external environment factors on the authenticity of a measurement result is large, the detection process is complex, the operation is complex, and the detection efficiency is low.
The theoretical analysis and research device for detecting the profile of the guide rail has few results, does not form products facing the market, and has the problems of non-standard and non-uniform detection indexes, low measurement precision and detection efficiency and the like.
Disclosure of Invention
The invention mainly aims to provide a rolling linear guide rail pair guide rail profile detection device and a use method thereof, and aims to solve the problems that theoretical analysis and research devices for guide rail profile detection are less in results, products facing markets are not formed, detection indexes are not standard and uniform, measurement accuracy and detection efficiency are low, and the like.
In order to achieve the above object, the present invention provides a rolling linear guide pair rail profile detection device, comprising:
A bed body;
the horizontal moving system is arranged on the lathe bed and comprises a horizontal bearing table and a horizontal driving part for driving the horizontal bearing table to move in the horizontal direction;
the vertical moving system comprises a vertical bearing table and a vertical driving part for driving the vertical bearing table to move in the vertical direction, and the vertical driving part is arranged on the horizontal bearing table;
The measuring system comprises a detection bearing table, wherein an online laser sensing system and two lateral line laser sensing systems are arranged on the detection bearing table, and the positions of the two lateral line laser sensing systems in the width direction of the detection bearing table are adjustable;
The straightness compensation system comprises a laser receiving and transmitting part and a reflecting pyramid prism, wherein the reflecting pyramid prism is detachably arranged on the horizontal bearing table, the laser receiving and transmitting part is arranged corresponding to the reflecting pyramid prism, and the working direction of the laser receiving and transmitting part is the length direction of the lathe bed;
a guide rail fixing part which is arranged on the lathe bed and used for fixing the rolling linear guide rail pair;
The height of the straightness compensation system is matched with the height of the guide rail fixing part.
Further, the reflecting pyramid prism is detachably mounted on the vertical bearing table, wherein the driving section of the vertical bearing table comprises the position of the reflecting pyramid prism corresponding to the laser receiving and transmitting part.
Further, the height of the upper surface of the guide rail fixing part is adjustable.
Further, a vertical grating is arranged on the horizontal bearing table corresponding to the vertical moving system, the vertical moving system further comprises a first optical path system arranged corresponding to the vertical grating, a horizontal grating is arranged on the machine body corresponding to the horizontal moving system, and the horizontal moving system further comprises a second optical path system arranged corresponding to the horizontal grating.
Further, a first travel switch is arranged on the horizontal bearing table corresponding to the vertical moving system, and a second travel switch is arranged on the lathe bed corresponding to the horizontal moving system.
Further, the two lateral line laser sensing systems form linkage through synchronous reverse motion shafts, and a width driving motor is arranged corresponding to the synchronous reverse motion shafts.
Further, the horizontal driving part comprises a suspension function part, a linear driving motor and a horizontal guide rail, wherein the suspension function part is used for suspending and supporting the horizontal bearing table, the horizontal guide rail is arranged along the length direction of the lathe bed and is matched with the horizontal bearing table, and the linear driving motor drives the vertical bearing table.
Further, a plurality of electromagnetic chucks are arranged on the guide rail fixing part.
The invention also provides a use method, which is applied to the rolling linear guide rail pair guide rail profile detection device and comprises the following steps:
s1, mounting a reflecting pyramid prism on a horizontal bearing table, and matching the reflecting pyramid prism with a laser receiving and transmitting part;
s2, adjusting the vertical movement system to adjust the measurement system to a proper height;
s3, adjusting the distance between the two lateral line laser sensing systems;
S4, controlling the horizontal movement system to move the measuring system along the length direction of the lathe bed, starting the measuring system to work to obtain profile data, and simultaneously starting the straightness compensation system to obtain straightness error data;
S5, correcting the profile data according to the straightness error data.
Further, the reflecting pyramid prism is detachably mounted on the vertical bearing table, wherein a driving section of the vertical bearing table includes a position of the reflecting pyramid prism corresponding to the laser receiving and transmitting part, and between the step S3 and the step S4, the method includes:
s351, controlling a horizontal movement system to move the measurement system along the length direction of the lathe bed, and starting a straightness compensation system to obtain first straightness error data;
S352, if the first linearity error data is qualified, mounting the reflecting pyramid prism on a vertical bearing table, and matching the reflecting pyramid prism with a laser receiving and transmitting part;
S353, controlling the horizontal movement system to move the measurement system along the length direction of the lathe bed, and starting the straightness compensation system to obtain second straightness error data;
s354, combining the first straightness error data and the second straightness error data, and judging whether the working state of the vertical bearing platform is qualified or not.
The invention provides a rolling linear guide rail pair guide rail profile detection device and a use method, wherein a measuring system detects a rolling linear guide rail pair along the length direction by working of a horizontal moving system, the positions of two lateral line laser sensing systems in the width direction of a detection bearing table are adjustable, rolling linear guide rail pairs with different width types can be further corresponding, matching is realized by a vertical moving system corresponding to the rolling linear guide rail pairs with different height types, and errors of the working positions of the horizontal moving system in the horizontal and vertical directions deviating from the length direction of a lathe bed are identified by a linearity compensation system, and compensation is performed.
Drawings
FIG. 1 is a schematic view of a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 2 is a schematic side view of a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing the installation of a horizontal movement system in a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 4 is a schematic view of a vertical movement system in a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 5 is a schematic side view of a vertical movement system in a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 6 is a schematic view of a measuring system in a rail profile detection apparatus for a rolling linear guide pair according to a first embodiment of the present invention;
FIG. 7 is a schematic diagram showing the steps of a method of using a second embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1 to 6, in an embodiment of the present invention, a rolling linear guide pair rail profile detection apparatus includes:
A bed 100;
A horizontal movement system 200 mounted on the bed 100, wherein the horizontal movement system 200 includes a horizontal carrying table 210 and a horizontal driving part 220 for driving the horizontal carrying table 210 to move in a horizontal direction;
The vertical movement system 300 comprises a vertical carrying platform 310 and a vertical driving part 320 for driving the vertical carrying platform 310 to move in the vertical direction, wherein the vertical driving part 320 is arranged on the horizontal carrying platform 210;
The measurement system 400 comprises a detection bearing table 410, wherein an online laser sensing system 420 and two lateral line laser sensing systems 430 are installed on the detection bearing table 410, and the positions of the two lateral line laser sensing systems 430 in the width direction of the detection bearing table 410 are adjustable;
the straightness compensation system comprises a laser receiving and transmitting part and a reflecting pyramid prism 520, wherein the reflecting pyramid prism 520 is detachably arranged on the horizontal bearing table 210, the laser receiving and transmitting part is arranged corresponding to the reflecting pyramid prism 520, and the working direction of the laser receiving and transmitting part is the length direction of the lathe bed 100;
A rail fixing part 600 installed on the bed 100 for fixing the rolling linear rail pair 010;
wherein the height of the straightness compensation system is matched with the height of the rail fixing part 600.
In the prior art, the theoretical analysis and research device for detecting the profile of the guide rail has few results, does not form products facing the market, and also has the problems of non-standard and non-uniform detection indexes, low measurement precision and detection efficiency and the like.
In the present invention, the machine body 100 is a mounting and fixing base of the following related components.
The horizontal movement system 200 is mounted to the bed 100. The horizontal moving system 200 includes a horizontal stage 210 and a horizontal driving part 220 that drives the vertical horizontal stage 210 to move in a horizontal direction. The horizontal driving unit 220 may be variously configured, for example, by a screw drive or a linear motor drive, and specifically, the horizontal stage 210 may be driven in the horizontal direction.
The vertical movement system 300 is mounted to the horizontal stage 210, and when the horizontal stage 210 moves, the entire vertical movement system 300 also moves. The vertical moving system 300 includes a vertical stage 310 and a vertical driving part 320 driving the vertical stage 310 to move in a vertical direction. The vertical driving part 320 may have various structures, for example, a screw driving or a linear motor driving, and the purpose is to be able to drive the vertical loading table 310 in the vertical direction.
The measurement system 400 includes a detection stage 410, and a line-up laser sensing system 420 and two side line laser sensing systems 430 are mounted on the detection stage 410. The line laser sensing system 420 includes a line laser emitting part and a sensor part, wherein the line laser emitting part projects laser onto the surface above the detected rolling linear guide rail pair 010, the sensor part collects reflected light data, and the collected data is transmitted to a computer for point cloud processing, and analysis and calculation are performed. Accordingly, the lateral line laser sensing system 430 correspondingly analyzes and measures the two side surfaces of the rolling linear guide pair 010. The positions of the two lateral line laser sensing systems 430 in the width direction of the detection bearing table 410 are adjustable, so that the two lateral line laser sensing systems can correspond to rolling linear guide rail pairs 010 with different width types, and the two lateral line laser sensing systems correspond to the rolling linear guide rail pairs 010 with different height types, and are matched through the vertical moving system 300.
The straightness compensation system includes a laser transmitter and receiver and a reflection corner cube 520. The reflective pyramid prism 520 is detachably mounted on the horizontal carrying table 210, and the laser transceiver is mounted on the lathe bed 100 and is disposed corresponding to the reflective pyramid prism 520. Since the working position of the horizontal moving system 200 may have a minute dimensional error deviated from the length direction of the bed 100 in both the horizontal and vertical directions, the above error is disadvantageous for the test of the rolling linear guide pair 010. The position errors are identified and compensated through the straightness compensation system.
The laser receiving and transmitting part comprises a laser, a position photosensitive detector, a data acquisition card, a power supply and the like. The reflecting pyramid prism 520 is mainly used for reflecting the laser light of the laser back to the position photosensitive detector of the laser transceiver. The position photosensitive detector selects a four-quadrant detector (Four Quadrant Detector), and has the advantages of high sensitivity, quick response time, wider dynamic range and the like. The four-quadrant detector splits the input optical signal into horizontal and vertical components, typically by adding two mutually perpendicular isolated electrodes to the photosensitive element, such that a circular photosensitive surface is divided into 4 sector-shaped areas, each area being connected to a common electrode.
The laser transceiver may be placed at the start of the lathe bed 100 during measurement, or may be separately disposed so as to correspond to the reflecting pyramid prism 520. The reflecting pyramid prism 520 is fixed on the horizontal bearing table 210, and the laser of the laser transceiver sends out a laser beam parallel to the lathe bed 100, and the laser beam is reflected by the corner reflecting pyramid prism 520 and then received by the position photosensitive detector as a reference beam for linearity measurement. When the horizontal stage 210 is moved, the linearity error causes a relative movement between the reflective pyramid 520 and the laser beam, thereby causing a change in the position of the spot received by the laser beam on the position sensitive detector. If there is a displacement deviation of X in the lateral or longitudinal direction, the center of the spot irradiated by the laser beam onto the position-sensitive detector will be shifted by 2X. And receiving the voltage signal output by the light spot position on the position photosensitive detector by a data acquisition card, and finally obtaining the straightness error through processing and analyzing the relation between the voltage signal and the light spot position.
The spot position calculation formula is as follows:
where k-a constant related to the detector;
i A、IB、IC、ID -the current values of the four quadrants;
X-transverse straightness error;
y-longitudinal straightness error.
The straightness compensation system in the above form is one mode provided in the invention, and various straightness compensation systems are available at present and can also be applied to the invention.
The rail fixing part 600 is mounted to the bed 100 for fixing the rolling linear rail pair 010. The rail fixing part 600 is positioned corresponding to the measuring system 400 such that the outer circumference is corresponding to the measuring system 400 after the rolling linear rail pair 010 is fixed.
The height of the straightness compensation system matches the height of the rail fixing part 600. Since the purpose of the straightness compensation system is mainly to compensate the motion error of the horizontal movement system 200, the straightness compensation system reflects the size error condition at its height position in practice. And for the final accuracy, a height error at the height position of the rolling linear guide pair 010 should be obtained, and thus, the height of the straightness compensation system is matched with the height of the guide fixing part 600, thereby guaranteeing the accuracy of the final detection result.
In summary, the measuring system 400 detects the rolling linear guide pair 010 along the length direction through the work of the horizontal moving system 200, the positions of the two lateral line laser sensing systems 430 in the width direction of the detection bearing table 410 are adjustable, rolling linear guide pairs 010 corresponding to different width types can be further achieved, matching is achieved through the vertical moving system 300 corresponding to the rolling linear guide pair 010 of different height types, and errors of the working position of the horizontal moving system 200 deviating from the length direction of the lathe bed 100 in the horizontal and vertical directions are identified through the straightness compensation system and compensated.
In one embodiment, the reflective pyramid prism 520 is further detachably mounted on the vertical carrying platform 310, where a driving section of the vertical carrying platform 310 includes a position of the reflective pyramid prism 520 corresponding to the laser transceiver.
In the present embodiment, it is considered that not only the horizontal movement system 200 is in the case of abnormality in the driving position or vibration, etc., but also the vertical movement system 300 is in the case of abnormality in the driving position or vibration, etc. When the reflecting pyramid prism 520 is placed on the horizontal moving system 200, it cannot be determined whether the operation of the vertical carrying platform 310 is abnormal, and when the reflecting pyramid prism 520 is placed on the vertical carrying platform 310, it is difficult to determine which of the horizontal moving system 200 and the vertical moving system 300 is abnormal. The detachable design of the reflecting pyramid prism 520 is adopted, and the working states of the horizontal moving system 200 and the vertical bearing table 310 can be analyzed successively through the position adjustment of the reflecting pyramid prism 520. Particularly, when one of the extreme positions of the two ends of the vertical carrying platform 310 in the height direction is limited, the reflecting pyramid prism 520 corresponds to the laser receiving and transmitting part, and when the reflecting pyramid prism 520 is mounted on the vertical carrying platform 310, the matching process between the reflecting pyramid prism 520 and the laser receiving and transmitting part is simplified. The reflecting pyramid prism 520 can correspond to the laser transmitting and receiving section by the control of the vertical stage 310. Specifically, the operation of the reflecting pyramid prism 520 and the laser transceiver refers to the following embodiments of the method of use.
In one embodiment, the height of the upper surface of the rail fixing part 600 is adjustable.
In this embodiment, the linearity compensation system is considered to have the best compensation effect when the working height of the linearity compensation system is identical to the height of the rolling linear guide pair 010. The rail fixing part 600 is provided to be adjustable in order to avoid adjustment of the straightness compensation system. The rail fixing part 600 is adjusted so that the height of the rolling linear rail pair 010 is identical to the straightness compensation system according to the rolling linear rail pair 010 of different models. Specifically, the height of the entire rail fixing part 600 is not limited to be adjustable, or the upper surface portion of the rail fixing part 600 is height-adjustable. The implementation of the relevant height adjustment may be various, specific and non-limiting, and may be pneumatic or motor driven, for example.
In one embodiment, a vertical grating is disposed on the horizontal stage 210 corresponding to the vertical movement system 300, the vertical movement system 300 further includes a first optical path system disposed corresponding to the vertical grating, a horizontal grating is disposed on the bed 100 corresponding to the horizontal movement system 200, and the horizontal movement system 200 further includes a second optical path system disposed corresponding to the horizontal grating.
In the present embodiment, the vertical movement system 300 and the horizontal movement system 200 work more accurately by introducing the vertical grating and the horizontal grating. Specifically, the adapting and calculating manner of the vertical grating and the first optical path system and the adapting and calculating manner of the horizontal grating and the second optical path system refer to the existing conventional arrangement, and are not described herein.
In one embodiment, a first travel switch is disposed on the horizontal carrying platform 210 corresponding to the vertical moving system 300, and a second travel switch is disposed on the bed 100 corresponding to the horizontal moving system 200.
In this embodiment, the first travel switch and the second travel switch play a role in safety, so as to avoid the abnormal operation of the vertical movement system 300 and the horizontal movement system 200. For example, when the vertical movement system 300 triggers the first travel switch, the vertical movement system 300 stops working and sends the relevant warning information.
Referring to fig. 6, in one embodiment, two lateral line laser sensing systems 430 are linked by a synchronous reverse movement shaft 431, and a width driving motor 432 is provided corresponding to the synchronous reverse movement shaft 431.
In the foregoing embodiment, the two lateral line laser sensing systems 430 are adjustable in the position of the width direction of the detection platform 410 to adapt to the rolling linear guide rail pairs 010 with different sizes, but the adjustment mode is specifically limited. In the present embodiment, the two lateral line laser sensing systems 430 are automatically adjusted. The width driving motor 432 drives the synchronous reverse movement shaft 431 to rotate, and the synchronous reverse movement shaft 431 is provided with two sections of threads with opposite rotation directions, so that the reverse synchronous driving of the two lateral line laser sensing systems 430 is realized. The above specific structure refers to typical arrangement of screw rod transmission, and related mechanisms such as a guide rod are introduced, which are not described herein.
In one embodiment, the horizontal driving part 220 includes a levitation function part for levitation-supporting the horizontal loading table 210, a linear driving motor for driving the vertical loading table 310, and a horizontal guide rail disposed along a length direction of the bed 100 to form a match with the horizontal loading table 210.
In the present embodiment, the horizontal driving part 220 is limited to be suspended, and the driving adopts a linear driving motor, and the suspended supporting of the horizontal carrying platform 210 (including the components thereon) is generated by the suspended functional part, so that the interference of the horizontal carrying platform 210 from external vibration is reduced, and the accuracy in horizontal driving is higher. The horizontal driving part 220 includes a levitation function part, a linear driving motor, and a horizontal guide rail. The suspension function portion is used for suspending and supporting the horizontal bearing platform 210, and the suspension function portion can provide bearing capacity by adopting principles of magnetic suspension or air suspension and the like. The horizontal guide rail is provided along the length direction of the bed 100 to be matched with the horizontal loading table 210, and functions to guide the movement of the horizontal loading table (or the levitation function part can also provide a precisely defined function of position). The linear driving motor drives the vertical loading table 310, thereby having advantages of stability and accuracy, and specific related structures can refer to the driving principle of the linear motor.
In one embodiment, the rail fixing part 600 is provided with a plurality of electromagnetic chucks.
In this embodiment, considering that the rolling linear guide pair 010 is generally made of a magnetizable material, the electromagnetic body can act on the rolling linear guide pair 010, and a plurality of electromagnetic chucks are provided on the guide fixing portion 600, so that the rolling linear guide pair 010 is attracted and fixed by the electromagnetic chucks. The electromagnetic chuck works in such a way that the fixing and releasing processes of the rolling linear guide rail pair 010 are simpler.
Referring to fig. 7, the invention further provides a use method, which is applied to the rolling linear guide rail pair guide rail profile detection device, and comprises the following steps:
s1, mounting a reflecting pyramid prism 520 on a horizontal bearing table 210, and matching the reflecting pyramid prism 520 with a laser receiving and transmitting part;
S2, adjusting the vertical movement system 300 to adjust the measurement system 400 to a proper height;
s3, adjusting the distance between the two lateral line laser sensing systems 430;
S4, controlling the horizontal movement system 200 to move the measurement system 400 along the length direction of the lathe bed 100, starting the measurement system 400 to work to obtain profile data, and simultaneously starting the straightness compensation system to obtain straightness error data;
S5, correcting the profile data according to the straightness error data.
In the present embodiment, steps other than the step S1 may be automatically controlled by an automated manner. In the step S1, the reflection pyramid prism 520 is mounted on the horizontal stage 210, and the reflection pyramid prism 520 is matched with the laser transmitting and receiving unit, so that the straightness compensation system can work normally.
In step S2, the vertical movement system 300 is adjusted to adjust the measurement system 400 to a proper height so that the measurement system 400 can be adapted to the rolling linear guide pair 010. In the step S3, the distance between the two lateral line laser sensing systems 430 is adjusted so as to adapt to the model of the rolling linear guide pair 010.
S4, controlling the horizontal movement system 200 to move the measurement system 400 along the length direction of the lathe bed 100, starting the measurement system 400 to work to obtain profile data, and simultaneously starting the straightness compensation system to obtain straightness error data. The line laser sensing system 420 includes a line laser emitting part and a sensor part, wherein the line laser emitting part projects laser onto the surface above the detected rolling linear guide rail pair 010, the sensor part collects reflected light data, the collected data is transmitted to a computer for point cloud processing and analysis and calculation, and accordingly, the side line laser sensing system 430 correspondingly analyzes and measures the two side surfaces of the rolling linear guide rail pair 010, so that the measuring system 400 can obtain profile data.
When the horizontal stage 210 is moved, the linearity error causes a relative movement between the reflective pyramid 520 and the laser beam, thereby causing a change in the position of the spot received by the laser beam on the position sensitive detector. If there is a displacement deviation of X in the lateral or longitudinal direction, the center of the spot irradiated by the laser beam onto the position-sensitive detector will be shifted by 2X. And receiving the voltage signal output by the light spot position on the position photosensitive detector by a data acquisition card, and finally obtaining straightness error data through processing and analyzing the relation between the voltage signal and the light spot position.
The spot position calculation formula is as follows:
where k-a constant related to the detector;
i A、IB、IC、ID -the current values of the four quadrants;
X-transverse straightness error;
y-longitudinal straightness error.
In step S5, the profile data is corrected based on the straightness error data.
In one embodiment, the reflective pyramid prism 520 is further detachably mounted on the vertical carrying platform 310, where a driving section of the vertical carrying platform 310 includes a position of the reflective pyramid prism 520 corresponding to the laser transceiver, and between the step S3 and the step S4 includes:
S351, controlling the horizontal movement system 200 to move the measurement system 400 along the length direction of the lathe bed 100, and starting the straightness compensation system to obtain first straightness error data;
S352, if the first linearity error data is qualified, mounting the reflecting pyramid prism 520 on the vertical bearing table 310, and matching the reflecting pyramid prism 520 with the laser receiving and transmitting part;
S353, controlling the horizontal movement system 200 to move the measurement system 400 along the length direction of the lathe bed 100, and starting the straightness compensation system to obtain second straightness error data;
S354, combining the first linearity error data and the second linearity error data, judging whether the working state of the vertical bearing platform 310 is qualified.
In the present embodiment, when the measurement system 400 starts to work, the working states of the horizontal moving system 200 and the vertical carrying platform 310 are first set.
In step S351, the horizontal movement system 200 is controlled to move the measurement system 400 along the length direction of the machine tool 100, and the straightness compensation system is started to work to obtain first straightness error data. If the deviation of the first linearity error data from the normal data range is too large, it indicates that the operation of the horizontal movement system 200 is problematic, and the debugging can be selected.
After receiving the result of the first linearity error data, steps S352 and S353 are performed, where the reflecting pyramid prism 520 is mounted on the vertical carrying table 310, and the reflecting pyramid prism 520 is matched with the laser transceiver, so as to control the horizontal moving system 200 to move the measuring system 400 along the length direction of the lathe bed 100, and start the linearity compensating system to obtain the second linearity error data.
In the detecting process, since the vertical carrying platform 310 is not in operation, in step S353, it is determined whether the static fixing effect of the vertical carrying platform 310 is acceptable (for example, a fixing failure or abnormal vibration occurs).
Since the linear deviation of the reflective pyramid prism 520 on the vertical stage 310 is superimposed with the linear deviation of the horizontal moving system 200 and the static fixing effect of the vertical stage 310, in step S354, it is determined whether the working state of the vertical stage 310 is acceptable or not by combining the first linearity error data and the second linearity error data. If the test result is qualified, the subsequent steps are carried out, otherwise, checking and debugging are needed.
In summary, the device and the method for detecting the profile of the rolling linear guide pair rail provided by the invention can detect the rolling linear guide pair 010 along the length direction by the measuring system 400 through the operation of the horizontal moving system 200, the two lateral line laser sensing systems 430 can be adjusted in the width direction of the detection bearing table 410, further can correspond to the rolling linear guide pair 010 with different width types, can correspond to the rolling linear guide pair 010 with different height types, can realize matching through the vertical moving system 300, and can recognize the error of the working position of the horizontal moving system 200 deviating from the length direction of the lathe bed 100 in the horizontal and vertical directions through the straightness compensating system and can compensate.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (10)
1. The utility model provides a rolling linear guide pair guide rail profile detection device which characterized in that includes:
a bed (100);
The horizontal moving system (200) is arranged on the lathe bed (100), and the horizontal moving system (200) comprises a horizontal bearing table (210) and a horizontal driving part (220) for driving the horizontal bearing table (210) to move in the horizontal direction;
the vertical moving system (300) comprises a vertical bearing table (310) and a vertical driving part (320) for driving the vertical bearing table (310) to move in the vertical direction, wherein the vertical driving part (320) is arranged on the horizontal bearing table (210);
The measuring system (400) comprises a detection bearing table (410), wherein an online laser sensing system (420) and two lateral line laser sensing systems (430) are arranged on the detection bearing table (410), and the positions of the two lateral line laser sensing systems (430) in the width direction of the detection bearing table (410) are adjustable;
The straightness compensation system comprises a laser receiving and transmitting part and a reflecting pyramid prism (520), wherein the reflecting pyramid prism (520) is detachably arranged on the horizontal bearing table (210), the laser receiving and transmitting part is arranged corresponding to the reflecting pyramid prism (520), and the working direction of the laser receiving and transmitting part is the length direction of the lathe bed (100);
a rail fixing part (600) which is installed on the lathe bed (100) and is used for fixing the rolling linear rail pair (010);
Wherein the height of the straightness compensation system is matched with the height of the guide rail fixing part (600).
2. The rolling linear guide pair rail profile detection device according to claim 1, wherein the reflection pyramid prism (520) is further detachably mounted on the vertical carrying platform (310), and the driving section of the vertical carrying platform (310) includes a position of the reflection pyramid prism (520) corresponding to the laser transceiver.
3. The apparatus for detecting the profile of a rail of a rolling linear guide pair according to claim 1, wherein the height of the upper surface of the rail fixing part (600) is adjustable.
4. The rolling linear guide pair guide rail profile detection device according to claim 1, wherein a vertical grating is arranged on the horizontal bearing table (210) corresponding to the vertical moving system (300), the vertical moving system (300) further comprises a first light path system arranged corresponding to the vertical grating, a horizontal grating is arranged on the lathe bed (100) corresponding to the horizontal moving system (200), and the horizontal moving system (200) further comprises a second light path system arranged corresponding to the horizontal grating.
5. The rolling linear guide pair rail profile detection device according to claim 4, wherein a first travel switch is provided on the horizontal carrying table (210) corresponding to the vertical moving system (300), and a second travel switch is provided on the bed (100) corresponding to the horizontal moving system (200).
6. The rolling linear guide rail pair rail profile detection apparatus according to any one of claims 1 to 5, wherein two side line laser sensing systems (430) form a linkage by a synchronous reverse movement axis (431), and a width driving motor (432) is provided corresponding to the synchronous reverse movement axis (431).
7. The rolling linear guide pair rail profile detection apparatus according to any one of claims 1 to 5, wherein the horizontal driving section (220) includes a levitation function section for levitation-supporting the horizontal loading table (210), a linear driving motor for driving the vertical loading table (310), and a horizontal rail provided along a length direction of the bed (100) to form a match with the horizontal loading table (210).
8. The rolling linear guide pair rail profile detection apparatus according to any one of claims 1 to 5, wherein a plurality of electromagnetic chucks are provided on the rail fixing portion (600).
9. A method of use for the rolling linear guide pair rail profile detection apparatus of claim 1, comprising:
s1, mounting a reflecting pyramid prism (520) on a horizontal bearing table (210), and matching the reflecting pyramid prism (520) with a laser receiving and transmitting part;
s2, adjusting the vertical movement system (300) to adjust the measurement system (400) to a proper height;
s3, adjusting the distance between the two lateral line laser sensing systems (430);
s4, controlling the horizontal movement system (200) to move the measurement system (400) along the length direction of the lathe bed (100), starting the measurement system (400) to work to obtain profile data, and simultaneously starting the straightness compensation system to obtain straightness error data;
S5, correcting the profile data according to the straightness error data.
10. The use method according to claim 9, wherein the reflecting pyramid prism (520) is further detachably mounted on the vertical carrying platform (310), and wherein the driving section of the vertical carrying platform (310) includes a position of the reflecting pyramid prism (520) corresponding to the laser transceiver, and the step S3 and the step S4 include:
s351, controlling the horizontal movement system (200) to move the measurement system (400) along the length direction of the lathe bed (100), and starting the straightness compensation system to obtain first straightness error data;
S352, if the first linearity error data is qualified, mounting the reflecting pyramid prism (520) on the vertical bearing table (310), and matching the reflecting pyramid prism (520) with the laser receiving and transmitting part;
S353, controlling the horizontal movement system (200) to move the measurement system (400) along the length direction of the lathe bed (100), and starting the straightness compensation system to obtain second straightness error data;
s354, combining the first straightness error data and the second straightness error data, and judging whether the working state of the vertical bearing platform (310) is qualified or not.
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| CN105492860A (en) * | 2015-01-22 | 2016-04-13 | 北京交通大学 | Laser measurement system and method capable of detecting 21 geometric errors |
| CN107631690A (en) * | 2017-08-31 | 2018-01-26 | 杭州长庚测量技术有限公司 | A kind of line slideway surface defect measuring method |
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| US4884889A (en) * | 1987-11-19 | 1989-12-05 | Brown & Sharpe Manufacturing Company | Calibration system for coordinate measuring machine |
| JP6054134B2 (en) * | 2012-10-17 | 2016-12-27 | 東芝機械株式会社 | Ultra-precision shape measuring device |
| CN115493529A (en) * | 2022-09-30 | 2022-12-20 | 江苏科技大学 | An in-situ non-contact detection method for keyway symmetry of shaft workpieces |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105492860A (en) * | 2015-01-22 | 2016-04-13 | 北京交通大学 | Laser measurement system and method capable of detecting 21 geometric errors |
| CN107631690A (en) * | 2017-08-31 | 2018-01-26 | 杭州长庚测量技术有限公司 | A kind of line slideway surface defect measuring method |
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