CN116608810B - Distance measuring equipment, speed reducer box assembly line and pad selecting method - Google Patents
Distance measuring equipment, speed reducer box assembly line and pad selecting methodInfo
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- CN116608810B CN116608810B CN202310486532.XA CN202310486532A CN116608810B CN 116608810 B CN116608810 B CN 116608810B CN 202310486532 A CN202310486532 A CN 202310486532A CN 116608810 B CN116608810 B CN 116608810B
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- calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
本申请提出一种距离测量设备、减速器箱装配线及选垫方法，距离测量设备包括比对仪、承载件和标定件，比对仪包括检测头，承载件在第一方向上与比对仪相对布置，比对仪和承载件之间形成用于穿过输送线的区域，输送线用于输送检测目标，标定件在第二方向上位于比对仪的一侧，标定件用于标定比对仪，标定件包括第一标定面和第二标定面，第一标定面和第二标定面垂直于检测方向，第一标定面和第二标定面的距离等于检测目标的第一检测面与第二检测面的理论距离，标定件的材料与检测目标的材料相同，以补偿检测目标的热变形。距离测量设备能够提高距离测量的准确性。
This application proposes a distance measuring device, a reducer assembly line, and a pad selection method. The distance measuring device includes a comparator, a carrier, and a calibration component. The comparator includes a detection head. The carrier is arranged opposite to the comparator in a first direction, forming an area between the comparator and the carrier for a conveyor line to pass through. The conveyor line is used to transport the detection target. The calibration component is located to one side of the comparator in a second direction and is used to calibrate the comparator. The calibration component includes a first calibration surface and a second calibration surface, which are perpendicular to the detection direction. The distance between the first and second calibration surfaces is equal to the theoretical distance between the first and second detection surfaces of the detection target. The material of the calibration component is the same as the material of the detection target to compensate for thermal deformation of the detection target. The distance measuring device can improve the accuracy of distance measurement.
Description
Technical Field
The application relates to the field of speed reducer cushion selection, in particular to distance measuring equipment, a speed reducer box assembly line and a cushion selection method.
Background
The choice of shims of the proper thickness is particularly important when assembling the front and rear cases of the reducer case, which are used to compensate for axial clearances caused by machining errors or other factors.
For example, it is necessary to measure the distance a between the end face of the bearing located in the front case and the joint face of the front case and the rear case, and the distance b between the gasket mounting face of the rear case and the joint face of the front case and the rear case, and the gasket is selected based on the difference of the two distances, thereby eliminating the axial gap between the bearing and the rear case after the front case and the rear case are assembled.
Currently, online measurement is mostly adopted in the related art. The front box and the rear box reach the measuring station along the conveying line, and the contact displacement sensor arranged at the measuring station moves and contacts the surface to be measured, so that the distance from the zero point to the surface to be measured is measured, and the distance between the surfaces to be measured is converted.
Because the measuring mode needs to use a plurality of contact displacement sensors, each sensor has certain error, superposition amplification of errors is easy to occur, and the contact displacement sensors cannot compensate expansion caused by temperature change and contraction caused by cold, so that the measuring result is inaccurate.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides the distance measuring equipment, the assembly line of the speed reducer box and the cushion selecting method, and the distance measuring equipment can improve the accuracy of distance measurement.
The distance measuring equipment comprises a comparison instrument, a bearing piece and a calibration piece, wherein the comparison instrument comprises a detection head, the bearing piece is oppositely arranged with the comparison instrument in a first direction, a region used for penetrating through a conveying line is formed between the comparison instrument and the bearing piece, the conveying line is used for conveying a detection target, the calibration piece is positioned on one side of the comparison instrument in a second direction and used for calibrating the comparison instrument, the calibration piece comprises a first calibration surface and a second calibration surface, the first calibration surface and the second calibration surface are perpendicular to the detection direction, the distance between the first calibration surface and the second calibration surface is equal to the theoretical distance between the first detection surface and the second detection surface of the detection target, and the calibration piece is made of the same material as the detection target so as to compensate the thermal deformation of the detection target.
The distance measuring equipment provided by the application has the technical effects that on one hand, a comparison instrument is adopted to detect a detection target, different sampling points are detected by the same detection head, the risk of error superposition amplification can be reduced, on the other hand, as the material of the calibration piece is consistent with that of the detection target, the sensitivity of the calibration piece and the detection target to temperature is basically consistent, the dimensional change of the detection target can be reflected through the dimensional change of the calibration piece at different temperatures, the influence of thermal deformation of the detection target on the detection result of the instrument is compensated through the calibration piece, and the distance measuring equipment can improve the accuracy of distance measurement.
According to some embodiments of the application, the calibration piece comprises a first calibration post and a second calibration post, wherein an end face of the first calibration post serves as the first calibration surface, and an end face of the second calibration post serves as the second calibration surface.
According to some embodiments of the application, the distance measuring device comprises a first driving member and a first mounting seat, the calibration member is mounted on the first mounting seat, the first driving member is connected with the first mounting seat, the first driving member is used for driving the first mounting seat to move in the second direction, and the calibration member is mounted on the first mounting seat.
According to some embodiments of the application, the distance measuring device comprises a second driving member and a second mounting seat, the second driving member is connected with the second mounting seat, the second driving member is used for driving the second mounting seat to move in the first direction, and the comparison instrument is mounted on the second mounting seat.
According to some embodiments of the application, the distance measuring device comprises a third drive for driving the carrier in the first direction to lift or release the detection target located on the conveyor line.
The assembly line of the speed reducer box comprises a conveying line and the distance measuring equipment provided by the application, wherein the conveying line comprises a measuring station, and the distance measuring equipment is positioned at the measuring station.
According to some embodiments of the application, the gearbox assembly line comprises a pallet mounted on the conveyor line, the pallet for carrying the gearbox, the pallet comprising a first positioning portion, the carrier comprising a second positioning portion, the first positioning portion and the second positioning portion being arranged opposite in a first direction.
According to some embodiments of the application, the conveyor line comprises conveyor rollers, two sets of which are arranged opposite each other, between which an evacuation area for the passage of the carrier is formed.
According to the speed reducer box cushion selecting method provided by the application, the speed reducer box cushion selecting method comprises the following steps of:
Receiving a reducer case;
the comparator measures the calibration piece and records the first actual distance;
the comparator measures the speed reducer box and records a second actual distance;
Calculating and recording the thickness of the gasket according to the theoretical distance, the first actual distance and the second actual distance;
And sending out the speed reducer box.
According to some embodiments of the application, when the comparator measures the calibration piece, a calibration ambient temperature is recorded, and in response to a difference between a current ambient temperature and the calibration ambient temperature exceeding a set range, the comparator re-measures the calibration piece and updates the first actual distance.
The speed reducer box assembly line comprises the distance measuring equipment provided by the application, and the speed reducer box pad selecting method uses the distance measuring equipment provided by the application, so that the speed reducer box assembly line and the speed reducer box pad selecting method have the beneficial effects brought by the distance measuring equipment and are not repeated herein.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic, partially schematic, three-dimensional illustration of a gear box assembly line in accordance with an embodiment of the application;
FIG. 2 is a schematic, partially schematic, three-dimensional illustration of a gear box assembly line in accordance with an embodiment of the application;
fig. 3 is a flow chart of a method of selecting a pad for a reduction gearbox according to an embodiment of the application.
Reference numerals:
a first frame 110, a second frame 120,
The comparison instrument 210, the detection head 211, the first platform 212, the second platform 213, the telescopic piece 214, the second driving piece 220, the second mounting seat 230, the second guiding piece 240,
A carrier 310, a third driver 320, a third guide 330,
Calibration piece 410, first calibration column 411, second calibration column 412, first driver 420, first mount 430, first guide 440, and second guide,
Conveyor line 510, conveyor roller 511, and tray 520
A first case 910 and a second case 920.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 and 2, the assembly line for a gearbox provided according to the present application includes a distance measuring apparatus provided according to the present application and a conveyor line 510, the conveyor line 510 including a measuring station, the distance measuring apparatus being located at the measuring station.
The measuring station is used for carrying out on-line detection on the speed reducer box so as to determine the thickness of the gasket matched with the speed reducer box. After the inspection is completed, the conveyor line 510 continues to send the reduction gearbox downstream for assembly.
It will be appreciated that the reducer casing is generally composed of a first casing 910 and a second casing 920 (also referred to as a front casing and a rear casing), and the reducer casing is internally equipped with components such as a rotating shaft, a bearing, and the like, and the bearing has an axial gap after being assembled due to design margins, machining errors, and the like, so that the axial gap needs to be calculated by measuring an end face distance, and a proper gasket is selected to fill the axial gap. On the one hand, the gasket should be capable of limiting the freedom of movement of the bearing in the axial direction, and on the other hand, the thickness of the gasket should not be too thick, so that the normal operation of the bearing is prevented from being influenced.
In the related art, a distance measuring apparatus performs measurement using a contact displacement sensor. Taking the second case 920 as an example, the measuring device is pre-arranged with contact displacement sensors, where the position of one group of contact displacement sensors corresponds to the joint surface of the second case 920 and the first case 910, and the position of the other group of contact displacement sensors corresponds to the end surface to be measured. After the second box 920 reaches the set position of the measuring station, the contact displacement sensor moves and contacts the second box 920, at this time, one set of contact displacement sensors acquires the distance between the bonding surface and the initial position, and the other set of contact displacement sensors acquires the distance between the end surface to be measured and the initial position, so that the distance between the bonding surface and the end surface to be measured can be converted.
The related art has problems that, on one hand, the contact displacement sensor has measurement errors, and the errors of different contact displacement sensors are different, so if the errors of the contact displacement sensor for detecting the joint surface are larger, and the errors of the contact displacement sensor for detecting the end surface to be detected are smaller, the errors are superimposed during conversion, and the errors after the superposition easily exceed the tolerance range of the gasket. On the other hand, the speed reducer box has the phenomenon of thermal expansion and contraction, and although the speed reducer box assembly line is usually placed in a constant temperature workshop, the influence of thermal deformation cannot be completely eliminated, and the contact type displacement sensor cannot compensate the thermal deformation. The thickness of the gasket is not accurate enough due to the reasons, and the product quality of the speed reducer box is affected.
With continued reference to fig. 1 and 2, the distance measuring apparatus provided in accordance with the present application includes a comparator 210, a carrier 310, and a calibration piece 410, the comparator 210 includes a detection head 211, the carrier 310 is disposed opposite to the comparator 210 in a first direction, a region for passing through a conveyor line 510 is formed between the comparator 210 and the carrier 310, the conveyor line 510 is used for conveying a detection target, the calibration piece 410 is located at one side of the comparator 210 in a second direction, the calibration piece 410 is used for calibrating the comparator 210, the calibration piece 410 includes a first calibration surface and a second calibration surface, the first calibration surface and the second calibration surface are perpendicular to the detection direction, a distance between the first calibration surface and the second calibration surface is equal to a theoretical distance between the first detection surface and the second detection surface of the detection target, and a material of the calibration piece is the same as a material of the detection target to compensate for thermal deformation of the detection target.
In the embodiment of fig. 1 and 2, the detection target is a speed reducer box, and the first detection surface and the second detection surface refer to a joint surface and an end surface to be detected of the speed reducer box respectively. In operation, the carrier 310 first lifts the reduction gearbox fed by the conveyor line 510, then the comparator 210 detects the reduction gearbox, and finally the carrier 310 returns the reduction gearbox to the conveyor line 510. The detection head 211 has a degree of freedom of movement in space, so that after contacting the joint surface, the detection head 211 can be directly moved toward the end surface to be measured, thereby directly measuring the distance between the joint surface and the end surface to be measured without conversion from the initial position.
According to the distance measuring device provided by the application, on one hand, the speed reducer box is detected by the comparator 210, different sampling points are detected by the same detection head 211, the risk of error superposition amplification can be reduced, and on the other hand, as the material of the calibration piece 410 is consistent with that of the speed reducer box, the sensitivity of the calibration piece 410 and the speed reducer box to temperature is basically consistent, the dimensional change of the speed reducer box can be reflected by the dimensional change of the calibration piece 410 at different temperatures, and further the influence of the thermal deformation of the speed reducer box on the detection result of the comparator 210 can be compensated by the calibration piece 410, so that the distance measuring device can improve the accuracy of distance measurement.
The assembly line of the speed reducer box provided by the application uses the distance measuring equipment provided by the application, so that the assembly line has the beneficial effects brought by the distance measuring equipment correspondingly. In a decelerator case assembly line, a distance measuring device may be used to measure the first case 910 and/or the second case 920. The second calibration surface corresponds to one end surface to be measured, and the number of the end surfaces to be measured can be one or more according to the number of the rotating shafts of the speed reducer box, so that the second calibration surface can also be one or more.
It will be appreciated that in order to avoid the indexing member 410 interfering with the transport of the reducer casing on the transport line 510, the length of the transport line 510 along which the measuring station is located extends in a third direction, the indexing member 410 being located on one side of the transport line 510. The distance measuring device further comprises a frame on which the comparator 210, the carrier 310 and the calibration piece 410 are mounted.
Referring to fig. 1 and 2, during assembly of the reducer case, the first case 910 and the second case 920 are disposed with their openings facing upward, and the conveying line 510 is disposed in a horizontal direction, so that in the embodiment corresponding to fig. 1 and 2, the detection direction and the first direction refer to a vertical direction (i.e., Z direction). In other possible embodiments, the detection direction may also refer to other directions according to the placement of the first and second cases 910 and 920, and the first direction may also refer to other directions according to the arrangement of the conveying lines 510.
In the embodiment corresponding to fig. 1 and 2, the second direction refers to the X direction, and the third direction refers to the Y direction.
The shape of the calibration member 410 may take on different designs. In view of the fact that the shape also affects the magnitude of thermal deformation of the first calibration surface and the second calibration surface to some extent, it is theoretically possible to achieve a better calibration effect with a reduction gear box having a size consistent with the theoretical size as the calibration member 410. However, the ideal speed reducer box is difficult to process and replace after being damaged, so that the calibration requirement in mass assembly line assembly is difficult to meet. To balance calibration effects and feasibility, in some embodiments, calibration piece 410 includes a first calibration post 411 and a second calibration post 412, with an end surface of first calibration post 411 being a first calibration surface and an end surface of second calibration post 412 being a second calibration surface. Therefore, on one hand, the first calibration surface or the second calibration surface is conveniently and independently replaced, and on the other hand, the cylindrical shape is adopted, so that the processing is convenient, and the processing precision is improved.
In some embodiments, the distance measuring device includes a first driving member 420 and a first mount 430, the calibration member 410 is mounted on the first mount 430, the first driving member 420 is connected to the first mount 430, the first driving member 420 is used to drive the first mount 430 to move in the second direction, and the calibration member 410 is mounted on the first mount 430. When no calibration is required, the first driving member 420 moves the calibration member 410 away from the conveyor line 510, reducing the risk of accidental damage to the calibration member 410.
Referring to fig. 1, the distance measuring apparatus further includes a first guide 440, the first guide 440 extending in the second direction, and the first mount 430 is connected to the first guide 440, thereby ensuring the movement accuracy of the first mount 430. The frame includes a first frame body 110, and a first driving member 420 and a first guide member 440 are mounted on the first frame body 110. The first guide 440 may be a guide rail as in fig. 1, and in other embodiments may be a guide post, a guide slot, or the like.
In some embodiments, the distance measuring device includes a second driving member 220 and a second mounting base 230, the second driving member 220 is connected to the second mounting base 230, the second driving member 220 is used for driving the second mounting base 230 to move in the first direction, and the alignment instrument 210 is mounted on the second mounting base 230. The second driving member 220 can drive the comparator 210 to avoid interference with the transmission of the reducer casing.
Referring to fig. 2, the distance measuring apparatus includes a second frame 120, a second driving member 220 mounted on the top of the second frame 120, and a second guide 240, the second guide 240 extending in a first direction, and a second mount 230 coupled to the second guide 240, thereby ensuring the movement accuracy of the second mount 230. The second guide 240 may be a guide post as shown in fig. 2, or in other embodiments, a guide rail, a guide slot, etc.
In some embodiments, to improve repeatability of the aligner 210, reduce inertial effects and power consumption, the aligner 210 uses a non-cartesian coordinate system structure to control the motion of the detection head 211. For example, referring to fig. 2, the comparator 210 includes a first platform 212, a second platform 213, and a telescopic member 214, the first platform 212 is mounted on the second mounting seat 230, the detection head 211 is mounted on the second platform 213, and the telescopic member 214 is connected between the first platform 212 and the second platform 213 through a universal joint. Between the first stage 212 and the second stage 213, 3 sets of expansion and contraction members 214 are connected, and the detection head 211 is controlled to move spatially by the expansion and contraction of the expansion and contraction members 214.
Referring to fig. 2, in some embodiments, the distance measuring apparatus includes a third driver 320, the third driver 320 for driving the carrier 310 to move in a first direction to hold up or release a detection target located on the conveyor line 510. The distance measuring apparatus further includes a third guide 330, the third guide 330 extending in the first direction, and the carrier 310 being connected to the third guide 330, thereby ensuring the movement accuracy of the carrier 310. The third guide 330 may be a guide post as in fig. 2, or in other embodiments, a guide rail, a guide slot, etc.
Referring to fig. 1, in some embodiments, the speed reducer case assembly line includes a tray 520, the tray 520 is mounted on the conveyor line 510, the tray 520 is for carrying the speed reducer case, the tray 520 includes a first positioning portion, the carrier 310 includes a second positioning portion, and the first positioning portion and the second positioning portion are disposed opposite to each other in a first direction. The first positioning portion and the second positioning portion are matched with each other so that the carrier 310 can accurately position the tray 520.
In order to allow the carrier 310 to pass smoothly through the conveyor line 510, in some embodiments, the conveyor line 510 includes conveyor rollers 511, with two sets of conveyor rollers 511 disposed opposite each other, and an evacuation area for the carrier to pass through is formed between the two sets of conveyor rollers 511.
According to the method for selecting the pad of the speed reducer box, the speed reducer box assembly line is used.
Referring to fig. 3, the speed reducer case cushioning method includes the steps of:
step S100, receiving a speed reducer box;
step 200, the comparator 210 measures the calibration piece 410 and records the first actual distance;
Step S300, the comparator 210 measures a speed reducer box and records a second actual distance;
Step 400, calculating and recording the thickness of the gasket according to the theoretical distance, the first actual distance and the second actual distance;
and S500, sending out the speed reducer box.
According to the method for selecting the pad of the speed reducer box, provided by the application, the calibration piece 410 is used for calibrating the comparator 210, so that the measurement error caused by temperature change can be compensated, the pad can be selected more accurately and reasonably, and the product quality of the speed reducer box is improved. In the decelerator box assembly line, steps S100 to S500 are repeated to sequentially measure the respective decelerator boxes passing through the measuring station.
It will be appreciated that if calibration is performed once for each measurement, the accuracy of the thickness calculation can be guaranteed to be optimal, but the operation efficiency of the assembly line of the gearbox can be affected. When the temperature change is not large, the effect of thermal deformation on the dimensions is within an acceptable range, so in some embodiments, when the comparator 210 measures the calibration piece 410, the calibration ambient temperature is recorded, and in response to the difference between the current ambient temperature and the calibration ambient temperature being outside of the set range, the comparator 210 re-measures the calibration piece 410, updating the first actual distance. That is, a judging step is added before step S200, and step S200 is skipped when the set condition is satisfied, improving the operation efficiency of the assembly line of the reduction gearbox. The judging step may be located between step S100 and step S200, or may be located before step S100. In general, the set range may employ ±2 ℃ to balance measurement accuracy and operation efficiency, and may employ ±1 ℃ or ±5 ℃.
The theoretical distance, the first actual distance, and the second actual distance may be defined as L 1、L2、L3, respectively, and in step S400, the thickness of the spacer may be calculated by using different calculation methods.
For example, in some embodiments, the difference between L 3 and L 2 is used directly as the shim thickness. Or in other embodiments, the deformation coefficient of the reducer box is calculated according to the theoretical temperature, the current temperature and L 1、L2, a data table for mapping the deformation coefficient is constructed, the distance L 4 between the joint surface of the reducer box and the end surface to be measured at the theoretical temperature is calculated according to L 2 and L 3 measured at the current calibration and the content of the data table, and the difference value between L 4 and L 1 is used as the thickness of the gasket. The data table can be stored in a memory, and the controller can be used for calling and outputting the result, or the result can be called and output in a mode of manually searching the paper data table or the electronic document.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In some alternative embodiments, the functions/acts noted in the block diagrams may occur out of the order noted in the operational illustrations. For example, two blocks shown in succession may in fact be executed substantially concurrently or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved. Furthermore, the embodiments presented and described in the flowcharts of the present application are provided by way of example in order to provide a more thorough understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed, and in which sub-operations described as part of a larger operation are performed independently.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims (10)
1. A distance measuring device, comprising:
The comparison instrument comprises a detection head;
The bearing piece is arranged opposite to the comparison instrument in a first direction, a region for passing through a conveying line is formed between the comparison instrument and the bearing piece, and the conveying line is used for conveying a detection target;
The calibration piece is positioned on one side of the comparison instrument in the second direction, the calibration piece is used for calibrating the comparison instrument, the calibration piece comprises a first calibration surface and a second calibration surface, the first calibration surface and the second calibration surface are perpendicular to the detection direction, the distance between the first calibration surface and the second calibration surface is equal to the theoretical distance between the first detection surface and the second detection surface of the detection target, and the material of the calibration piece is the same as the material of the detection target so as to compensate the thermal deformation of the detection target.
2. The distance measuring device according to claim 1, wherein the calibration member includes a first calibration post and a second calibration post, an end face of the first calibration post being the first calibration face, and an end face of the second calibration post being the second calibration face.
3. The distance measuring device of claim 2, comprising a first drive member and a first mount, the calibration member being mounted on the first mount, the first drive member being coupled to the first mount, the first drive member being configured to drive the first mount to move in the second direction, the calibration member being mounted on the first mount.
4. The distance measuring apparatus of claim 1 including a second drive member and a second mount, the second drive member being coupled to the second mount, the second drive member being configured to drive movement of the second mount in the first direction, the alignment instrument being mounted on the second mount.
5. A distance measuring apparatus according to claim 1, comprising a third drive for driving the carrier member in the first direction to lift or release the detection target located on the conveying line.
6. A gear box assembly line comprising a conveyor line and a distance measuring device according to any one of claims 1 to 5, the conveyor line comprising a measuring station, the distance measuring device being located at the measuring station.
7. The gearbox assembly line of claim 6, comprising a tray mounted on the conveyor line, the tray for carrying a gearbox, the tray comprising a first location, the carrier comprising a second location, the first location and the second location being oppositely disposed in a first direction.
8. The assembly line of claim 7, wherein the conveyor line includes conveyor rollers, the conveyor rollers of the two sets being disposed opposite one another, the conveyor rollers of the two sets defining a take-away area therebetween for the carrier to pass through.
9. A method of selecting a cushion for a reduction gear box, wherein the method of selecting a cushion for a reduction gear box uses the reduction gear box assembly line according to any one of claims 6 to 8, the method of selecting a cushion for a reduction gear box comprising the steps of:
Receiving a reducer case;
the comparator measures the calibration piece and records the first actual distance;
the comparator measures the speed reducer box and records a second actual distance;
Calculating and recording the thickness of the gasket according to the theoretical distance, the first actual distance and the second actual distance;
And sending out the speed reducer box.
10. The method of claim 9, wherein a calibrated ambient temperature is recorded when the comparator measures the calibration member, and the comparator re-measures the calibration member in response to a difference between a current ambient temperature and the calibrated ambient temperature exceeding a set range, and updates the first actual distance.
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| CN1587894A (en) * | 2004-08-18 | 2005-03-02 | 浙江大学 | Temperature compensation method for electric eddy shift sensor |
| CN115388755A (en) * | 2022-10-27 | 2022-11-25 | 中国航空制造技术研究院 | Microwave frequency spectrum-based wave-absorbing coating thickness measuring method and device |
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| JP2011047671A (en) * | 2009-08-25 | 2011-03-10 | Chubu Plant Service Co Ltd | Measuring instrument between surfaces |
| CN207541287U (en) * | 2017-06-14 | 2018-06-26 | 北京君和信达科技有限公司 | Ray safety checks the calibration element and its caliberating device of equipment |
| CN207248105U (en) * | 2017-07-28 | 2018-04-17 | 福士瑞精密工业(郑州)有限公司 | Flatness and thickness detection apparatus |
| CN207798050U (en) * | 2017-12-25 | 2018-08-31 | 天永机械电子（太仓）有限公司 | A kind of clutch disc group height measurer |
| CN112362023A (en) * | 2020-11-25 | 2021-02-12 | 南阳理工学院 | Detection equipment for intelligent manufacturing |
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| CN1587894A (en) * | 2004-08-18 | 2005-03-02 | 浙江大学 | Temperature compensation method for electric eddy shift sensor |
| CN115388755A (en) * | 2022-10-27 | 2022-11-25 | 中国航空制造技术研究院 | Microwave frequency spectrum-based wave-absorbing coating thickness measuring method and device |
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