CN115876094A - Precision part measuring and detecting platform and measuring and detecting method thereof - Google Patents
Precision part measuring and detecting platform and measuring and detecting method thereof Download PDFInfo
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- CN115876094A CN115876094A CN202310161046.0A CN202310161046A CN115876094A CN 115876094 A CN115876094 A CN 115876094A CN 202310161046 A CN202310161046 A CN 202310161046A CN 115876094 A CN115876094 A CN 115876094A
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- 239000004579 marble Substances 0.000 claims abstract description 46
- 238000005259 measurement Methods 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000007689 inspection Methods 0.000 claims description 10
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- 238000004364 calculation method Methods 0.000 claims description 6
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- 210000003128 head Anatomy 0.000 description 33
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- 239000003344 environmental pollutant Substances 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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Abstract
The invention discloses a precision part measuring and detecting platform and a measuring and detecting method thereof, relating to the field of measuring and detecting of machined workpieces, and the technical scheme is as follows: the automatic leveling machine comprises a frame, install the marble bottom plate in the frame, be provided with XYZ axle motion module on the marble bottom plate, the below that lies in XYZ axle motion module on the marble bottom plate is provided with first Y axle motion subassembly, be provided with the locating piece on the marble bottom plate, be fixed with the positioning ruler on the output of first Y axle motion subassembly, the direction of motion along the positioning ruler is provided with the grating chi on the marble bottom plate, be provided with the reading head that is used for cooperating the grating chi to carry out the reading on the positioning ruler, be provided with the amesdial on the output of XYZ axle motion module, can dismantle on the marble bottom plate and be connected with the calibration piece, the calibration piece is one-step form component, each ladder of calibration piece corresponds different standard height. The invention has the advantages of strong applicability, simple structure, convenient operation, high measurement and detection efficiency and good stability.
Description
Technical Field
The invention relates to the field of measurement and detection of machined workpieces, in particular to a precision part measurement and detection platform and a measurement and detection method thereof.
Background
With the advent of industry 4.0, automated products in mechanical systems are spread throughout various industries. When a machine tool is used for machining a workpiece, the basic size of the workpiece such as length and height and the form and position tolerance such as planeness and parallelism often deviate due to the rotation error of the machine tool, the geometric error of a cutter and a clamp, the positioning error and the like, and the deviation is inevitable in the machining industry.
Most of the height and length detection modes of the currently common machined precision parts still adopt traditional measuring tools such as height gauges and vernier calipers to perform one-way measurement, and the measurement mode has several problems: the universal vernier caliper and the height gauge are limited in measuring range and resolution, small in measuring range and low in precision, and the consistency of measuring results of multiple batches of products is poor; secondly, the measuring tools need to be checked regularly, and the self-testing stability is difficult to guarantee after long-time use; thirdly, the device can only be used for independently testing the length or height of the workpiece, cannot be used for simultaneously measuring, and has low measuring efficiency; fourthly, the influence of the manual visual measurement error is large; the measuring tool for products with high measurement precision requirements cannot meet the requirements basically, and in order to solve the problems, the invention provides a precision part measurement and detection platform.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a precision part measuring and detecting platform and a measuring and detecting method thereof, which have the advantages of strong applicability, simple structure, convenience in operation, high measuring and detecting efficiency and good stability.
The technical purpose of the invention is realized by the following technical scheme: the precision part measuring and detecting platform comprises a rack, wherein a marble bottom plate is installed on the rack, an XYZ axis movement module is arranged on the marble bottom plate, a first Y axis movement assembly is arranged below the XYZ axis movement module on the marble bottom plate, a positioning block used for positioning a workpiece is arranged on the marble bottom plate, a positioning ruler is fixed on the output end of the first Y axis movement assembly and can be abutted against one end, far away from the positioning block, of the workpiece, so that the workpiece is subjected to length measurement, a grating ruler is arranged on the marble bottom plate along the movement direction of the positioning ruler, a reading head used for being matched with the grating ruler to read is arranged on the positioning ruler, a display device is arranged on the marble bottom plate and electrically connected with the reading head, a dial gauge is arranged on the output end of the XYZ axis movement module, a calibration block is detachably connected to the marble bottom plate and used for being matched with the dial gauge to perform height measurement or flatness detection on the workpiece, the calibration block is a stepped component, and each calibration block corresponds to different standard heights.
In one embodiment, the XYZ-axis motion module comprises X-axis motion assemblies respectively fixed at two ends of the top of the marble slab, a second Y-axis motion assembly fixedly connected between output ends of the two X-axis motion assemblies, and a Z-axis motion assembly fixed on the second Y-axis motion assembly, the dial indicator is arranged at the output end of the Z-axis motion assembly, each of the X-axis motion assembly, the first Y-axis motion assembly, the second Y-axis motion assembly, and the Z-axis motion assembly comprises a support, a guide rail fixed on the support, and a slider slidably connected to the guide rail, the slider is the output end, and a clamp capable of locking the slider on the guide rail is arranged on the slider.
In one embodiment, the two ends of the guide rail on the support are respectively fixed with a limiting block, and the relative positions of the two limiting blocks are respectively provided with a cushion pad.
In one embodiment, an adapter plate is fixed on the marble bottom plate, the positioning block is fixed on the adapter plate through a bolt, a gap is formed between the positioning block and the marble bottom plate, the positioning block comprises an X-direction shoulder and a Y-direction shoulder which are integrally formed, the X-direction shoulder and the Y-direction shoulder are perpendicular to each other, an arc-shaped groove is formed in a corner between the X-direction shoulder and the Y-direction shoulder, and the edge of the end of the X-direction shoulder and the edge of the end of the Y-direction shoulder are in arc transition respectively.
In one embodiment, each step of the calibration block is provided with a corresponding standard height mark, and the upper end surface of each step of the calibration block is a smooth plane.
In one embodiment, the bottom of the frame is provided with a caster and a foot cup respectively.
A measurement and detection method comprises any one of the precision part measurement and detection platforms, and further comprises the following steps:
when the length of a workpiece is measured, the workpiece is placed on the marble bottom plate, and one end of the workpiece is abutted against the positioning block;
pushing the positioning ruler to slide along the Y-axis direction, enabling the positioning ruler to abut against the other end of the workpiece, reading position information on the grating ruler by the reading head, transmitting the position information to the display device, and converting the position information into a length value of the workpiece by the display device and displaying the length value of the workpiece to a user;
when the height of the workpiece is measured, observing by naked eyes and selecting the standard height of a step on the calibration block, which is closest to the workpiece, as a first height;
if the height of the workpiece is higher than the first height, taking the upper end face of the step at the first height position as a reference face, sliding the dial indicator to enable a measuring head of the dial indicator to be in contact with the upper end face of the step at the first height position, locking the degree of freedom of the dial indicator in the Z-axis direction, clearing the indication number of the dial indicator, lifting and releasing the measuring head, repeating the operation for multiple times, checking whether the measuring head is still in contact with the upper end face of the step at the first height position, checking whether the indication number of the dial indicator is still zero, lifting the measuring head after the check is qualified, moving the measuring head to the upper part of the workpiece, releasing the measuring head, enabling the measuring head to be in contact with the workpiece, enabling the reading displayed on the dial indicator to be the height difference between the workpiece and the first height, and summing the height difference and the first height to obtain the actually measured height of the workpiece;
if the height of the workpiece is lower than the first height, taking the workpiece as a reference surface, counting and resetting the dial indicator, measuring the height difference between the workpiece and the first height, and then calculating the difference between the height difference and the first height to obtain the actual measurement height of the workpiece;
when the flatness of the workpiece is detected, multipoint sampling can be carried out on the surface to be detected of the workpiece through a dial indicator so as to obtain a numerical value required in the flatness calculation process.
In conclusion, the invention has the following beneficial effects: according to the invention, through the arrangement of the XYZ axis movement module, the first Y axis movement assembly, the positioning block, the positioning ruler, the grating ruler, the reading head, the dial gauge and the calibration block, the workpiece can be simultaneously measured in length and height after being positioned for one time, the positioning block is arranged into the stepped component, each step corresponds to different standard heights, the height of the workpiece with a larger size can be accurately and quickly measured through the dial gauge by selecting the standard height corresponding to the workpiece, and meanwhile, the dial gauge can also be used for detecting the flatness of the workpiece.
Drawings
FIG. 1 is a schematic structural diagram of a precision part measurement inspection platform according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a reading head, a grating scale and a display device in a precision part measurement and detection platform according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an XYZ-axis motion module in a precision part measurement and inspection platform according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a support, a guide rail, a slider, a clamp, a limiting block and a cushion in the precision part measurement and detection platform according to the embodiment of the present application;
FIG. 5 is a schematic structural diagram of a positioning block in a precision part measurement and inspection platform according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a calibration block in a precision part measurement and inspection platform according to an embodiment of the present application.
In the figure: 1. a frame; 2. a marble floor; 3. an XYZ-axis motion module; 31. an X-axis motion assembly; 32. a second Y-axis motion assembly; 33. a Z-axis motion assembly; 4. a first Y-axis motion assembly; 5. an adapter plate; 6. positioning a block; 61. the shoulder is leaned on in the X direction; 62. a Y-direction shoulder rest; 63. an arc-shaped slot; 7. a dial indicator; 8. positioning a ruler; 9. calibrating the block; 91. standard height identification; 10. a reading head; 11. a grating scale; 12. a display device; 13. a support; 14. a guide rail; 15. a slider; 16. a clamp; 17. a limiting block; 18. a cushion pad; 19. a caster wheel; 20. a foot cup.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment of the application provides a precision part measurement and detection platform, which comprises a frame 1, a marble bottom plate 2 is installed on the frame 1, wherein the surface flatness of the marble bottom plate 2 is high, the marble bottom plate can be used as a fitting reference surface of a workpiece, and bolt installation holes for installing components are formed in the marble bottom plate 2. An XYZ-axis movement module 3 is arranged on the marble bottom plate 2, a first Y-axis movement assembly 4 is arranged on the marble bottom plate 2 and below the XYZ-axis movement module 3, a positioning block 6 used for positioning a workpiece is arranged on the marble bottom plate 2, a positioning ruler 8 is fixed on the output end of the first Y-axis movement assembly 4, and the positioning ruler 8 can be abutted to one end, far away from the positioning block 6, of the workpiece so as to measure the length of the workpiece. The marble bottom plate 2 is provided with a grating ruler 11 along the moving direction of the positioning ruler 8, and the positioning ruler 8 is provided with a reading head 10 used for being matched with the grating ruler 11 to read. The marble bottom plate 2 is provided with a display device 12, the reading head 10 is electrically connected with the display device 12, and the display device 12 comprises a logic board and a display screen, wherein the logic board is used for processing data of position information read by the reading head 10, and the display screen is electrically connected with the logic board. Be provided with amesdial 7 on the output of XYZ axle motion module 3, amesdial 7 adopts digital display amesdial 7, can dismantle on the marble bottom plate 2 and be connected with calibration piece 9, calibration piece 9 is used for cooperating amesdial 7 to carry out height measurement or plane degree detection to the work piece. The calibration block 9 is a step-shaped member, and each step of the calibration block 9 corresponds to different standard heights.
In the working process of the measuring and detecting platform, when the length of the workpiece is measured, the workpiece is placed on the marble bottom plate 2, and one end of the workpiece is abutted against the positioning block 6; pushing the positioning ruler 8 to slide along the Y-axis direction, enabling the positioning ruler 8 to abut against the other end of the workpiece, reading position information on the grating ruler 11 by the reading head 10, transmitting the position information to the display device 12, and converting the position information into a length value of the workpiece by the display device 12 and displaying the length value to a user; when the height of the workpiece is measured, the standard height of a step on the calibration block 9 closest to the workpiece is observed by naked eyes and selected as a first height; if the height of the workpiece is higher than the first height, taking the upper end face of the step at the first height position as a reference face, sliding the dial indicator 7 to enable a measuring head of the dial indicator 7 to be in contact with the upper end face of the step at the first height position, locking the degree of freedom of the dial indicator 7 in the Z-axis direction, clearing the reading of the dial indicator 7, lifting and releasing the measuring head, repeating the steps for multiple times, checking whether the measuring head is still in contact with the upper end face of the step at the first height position, checking whether the reading of the dial indicator 7 is still zero, lifting the measuring head after the checking is qualified, moving the measuring head to the upper part of the workpiece, releasing the measuring head, enabling the measuring head to be in contact with the workpiece, enabling the reading displayed on the dial indicator 7 to be the height difference between the workpiece and the first height, and summing the height difference and the first height to obtain the actually measured height of the workpiece; if the height of the workpiece is lower than the first height, the workpiece is used as a reference surface, the dial indicator 7 is subjected to number indication zero clearing, after the height difference between the workpiece and the first height is measured, the height difference and the first height are subjected to difference finding, and the actually measured height of the workpiece is obtained; when the flatness of the workpiece is detected, the dial indicator 7 may perform multi-point sampling on the surface of the workpiece to be detected to obtain a value required in the flatness calculation process, and it should be noted that the flatness detection and calculation method of the workpiece adopts the prior art, which is not described in detail in this embodiment.
The above-mentioned mode is through XYZ axle motion module 3, first Y axle motion subassembly 4, locating piece 6, positioning ruler 8, grating ruler 11, reading head 10, micrometer 7 and calibration block 9's setting, can carry out length and height's measurement to the work piece simultaneously after once fixing a position the work piece, and set up locating piece 6 into the echelonment component, each ladder corresponds different standard height, through selecting the standard height corresponding with the work piece, can be through the height of 7 accurate and quick measurement great size work pieces of micrometer, micrometer 7 still can carry out the plane degree to the work piece and detect simultaneously, and the suitability is strong, moreover, the steam generator is simple in structure, the simple operation, it is high to measure detection efficiency, the advantage that stability is good.
In this embodiment, as shown in fig. 3 and 4, the XYZ-axis motion module 3 includes X-axis motion assemblies 31 respectively fixed at two ends of the top of the marble slab 2, a second Y-axis motion assembly 32 fixedly connected between output ends of the two X-axis motion assemblies 31, and a Z-axis motion assembly 33 fixed on the second Y-axis motion assembly 32, the dial indicator 7 is disposed at an output end of the Z-axis motion assembly 33, each of the X-axis motion assembly 31, the first Y-axis motion assembly 4, the second Y-axis motion assembly 32, and the Z-axis motion assembly 33 includes a support 13, a guide rail 14 fixed on the support 13, and a slider 15 slidably connected to the guide rail 14, the slider 15 is the output end, and the slider 15 is provided with a clamp 16 capable of locking the slider 15 on the guide rail 14.
Specifically, two ends of the support 13, which are located on the guide rail 14, are respectively fixed with a limiting block 17, and the two limiting blocks 17 are respectively provided with a cushion 18 at opposite positions.
It should be noted that the caliper 16 is a mechanical caliper structure for braking the corresponding slide 15 to be locked on the guide rail 14.
During operation, the dial indicator 7 can move along the directions of the X axis, the Y axis and the Z axis, and can lock the freedom degrees of movement of the X axis, the Y axis and the Z axis respectively through the caliper 16.
In the above-mentioned mode, through the setting of two X axle motion subassemblies 31, second Y axle motion subassembly 32 bridges between two X axle motion subassemblies 31, better structural stability has, better stability has when making amesdial 7 remove, be favorable to improving the measurement accuracy of amesdial 7, simultaneously through the setting of blotter 18, can play buffering limiting displacement to slider 15, can effectively reduce the problem that causes 7 internal damage of amesdial because slider 15 and stopper 17 striking.
In this embodiment, as shown in fig. 1 and 5, an adapter plate 5 is fixed on the marble base plate 2, the positioning block 6 is fixed on the adapter plate 5 by a bolt, a gap is formed between the positioning block 6 and the marble base plate 2, the positioning block 6 includes an X-direction shoulder 61 and a Y-direction shoulder 62 which are integrally formed, the X-direction shoulder 61 and the Y-direction shoulder 62 are perpendicular to each other, an arc-shaped groove 63 is formed at a corner between the X-direction shoulder 61 and the Y-direction shoulder 62, and an end edge of the X-direction shoulder 61 and an end edge of the Y-direction shoulder 62 are in arc transition respectively.
During operation, one side of the workpiece abuts against the Y-direction shoulder 62, and one end of the workpiece abuts against the X-direction shoulder 61, so that the workpiece can be positioned in the X direction and the Y direction.
In the above-mentioned mode, locating piece 6 passes through the bolt and is connected with keysets 5, can change different locating piece 6 according to the shape characteristics of work piece during the use, set up the clearance between locating piece 6 and marble bottom plate 2, with locating piece 6 direct and the contact of marble bottom plate 2 in the traditional mode, setting through the clearance, make the pollutant be difficult to gather the right angle department that forms between locating piece 6 and marble bottom plate 2, and when the edge of work piece has the burr, the burr also can not support and hold right angle department, simultaneously through the setting of arc wall 63, arc wall 63 can be used for holding the burr on the tip side of work piece, thereby make the contact of work piece and locating piece 6 inseparabler, be favorable to improving measurement accuracy.
In this embodiment, as shown in fig. 6, each step of the calibration block 9 is provided with a corresponding standard height mark 91, and the upper end surface of each step of the calibration block 9 is a smooth plane.
Specifically, the calibration block 9 is made of a metal block, steps are obtained through precision machine tool machining, the heights of the steps are different, a certain fool-proof effect is achieved, selection errors caused by visual fatigue are reduced, and therefore the corresponding first height can be selected quickly according to different size characteristics of workpieces.
In the above mode, the upper end faces of the steps are set to be smooth planes, and the smooth planes have smaller flatness errors when the smooth planes are matched with the dial indicator 7 for use, so that the measurement and detection precision of the dial indicator 7 on a workpiece can be improved.
In this embodiment, as shown in fig. 1, the bottom of the rack 1 is provided with casters 19 and a foot cup 20. The truckles 19 are used for moving the measuring and detecting platform, and the foot cups 20 are used for stably supporting the measuring and detecting platform.
The embodiment of the application also provides a measurement and detection method, which comprises any one of the precision part measurement and detection platforms, and further comprises the following steps:
when the length of the workpiece is measured, the workpiece is placed on the marble bottom plate 2, and one end of the workpiece is abutted against the positioning block 6;
pushing the positioning ruler 8 to slide along the Y-axis direction, enabling the positioning ruler 8 to abut against the other end of the workpiece, reading position information on the grating ruler 11 by the reading head 10, transmitting the position information to the display device 12, and converting the position information into a length value of the workpiece by the display device 12 and displaying the length value to a user;
when the height of the workpiece is measured, the standard height of a step on the calibration block 9 closest to the workpiece is observed by naked eyes and selected as a first height;
if the height of the workpiece is higher than the first height, taking the upper end face of the step at the first height position as a reference face, sliding the dial indicator 7 to enable a measuring head of the dial indicator 7 to be in contact with the upper end face of the step at the first height position, locking the degree of freedom of the dial indicator 7 in the Z-axis direction, clearing the reading of the dial indicator 7, lifting and releasing the measuring head, repeating the steps for multiple times, checking whether the measuring head is still in contact with the upper end face of the step at the first height position, checking whether the reading of the dial indicator 7 is still zero, lifting the measuring head after the checking is qualified, moving the measuring head to the upper part of the workpiece, releasing the measuring head, enabling the measuring head to be in contact with the workpiece, enabling the reading displayed on the dial indicator 7 to be the height difference between the workpiece and the first height, and summing the height difference and the first height to obtain the actually measured height of the workpiece;
if the height of the workpiece is lower than the first height, taking the workpiece as a reference surface, counting and resetting the dial indicator 7, measuring the height difference between the workpiece and the first height, and then calculating the difference between the height difference and the first height to obtain the actual measurement height of the workpiece;
when the flatness of the workpiece is detected, multipoint sampling can be carried out on the surface to be detected of the workpiece through the dial indicator 7, so that a numerical value required in the flatness calculation process can be obtained.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides a precision parts measures testing platform, includes frame (1), install marble bottom plate (2), its characterized in that on frame (1): the automatic leveling device is characterized in that an XYZ-axis movement module (3) is arranged on the marble bottom plate (2), a first Y-axis movement assembly (4) is arranged below the XYZ-axis movement module (3) on the marble bottom plate (2), a positioning block (6) used for positioning a workpiece is arranged on the marble bottom plate (2), a positioning ruler (8) is fixed at the output end of the first Y-axis movement assembly (4), the positioning ruler (8) can be abutted against one end, far away from the positioning block (6), of the workpiece, so that the length of the workpiece can be measured, a grating ruler (11) is arranged on the marble bottom plate (2) along the movement direction of the positioning ruler (8), a reading head (10) used for matching the grating ruler (11) to read is arranged on the positioning ruler (8), a display device (12) is arranged on the marble bottom plate (2), the reading head (10) is electrically connected with the display device (12), a dial gauge (7) is arranged on the output end of the XYZ-axis movement module (3), a calibration block (9) is detachably connected with the calibration block (9), and is used for measuring the height of the workpiece of the calibration block or the calibration block (9) corresponding to the standard workpiece, and the calibration block (9) is used for measuring the height of the step height of the workpiece.
2. The precision part measurement and inspection platform of claim 1, wherein: the XYZ-axis movement module (3) comprises X-axis movement assemblies (31) respectively fixed at two ends of the top of a marble bottom plate (2), a second Y-axis movement assembly (32) fixedly connected between output ends of the two X-axis movement assemblies (31) and a Z-axis movement assembly (33) fixed on the second Y-axis movement assembly (32), a dial indicator (7) is arranged at the output end of the Z-axis movement assembly (33), each of the X-axis movement assembly (31), the first Y-axis movement assembly (4), the second Y-axis movement assembly (32) and the Z-axis movement assembly (33) comprises a support (13), a guide rail (14) fixed on the support (13) and a sliding block (15) connected to the guide rail (14) in a sliding manner, the sliding block (15) is the output end, and a clamping device (16) capable of locking the sliding block (15) on the guide rail (14) is arranged on the sliding block (15).
3. The precision part measurement and inspection platform of claim 2, wherein: limiting blocks (17) are respectively fixed at two ends of the support (13) which are positioned on the guide rail (14), and buffer pads (18) are respectively arranged at the opposite positions of the two limiting blocks (17).
4. The precision part measurement and inspection platform of claim 1, wherein: be fixed with keysets (5) on marble bottom plate (2), locating piece (6) are fixed on keysets (5) through the bolt, have the clearance between locating piece (6) and marble bottom plate (2), locating piece (6) include integrated into one piece's X to lean on shoulder (61) and Y to lean on shoulder (62), X is to leaning on shoulder (61) and Y to leaning on shoulder (62) mutually perpendicular, X is provided with arc wall (63) to leaning on shoulder (61) and Y to leaning on the corner between shoulder (62), X is to the tip edge of leaning on shoulder (61) and Y to the tip edge circular arc transition respectively of leaning on shoulder (62).
5. The precision part measurement and inspection platform of claim 1, wherein: and each step of the calibration block (9) is provided with a corresponding standard height mark (91), and the upper end surface of each step of the calibration block (9) is a smooth plane.
6. The precision part measurement and inspection platform of claim 1, wherein: the bottom of the frame (1) is respectively provided with a caster (19) and a foot cup (20).
7. A measurement detection method is characterized in that: the precision part measurement and inspection platform comprising any one of claims 1-6, further comprising the steps of:
when the length of the workpiece is measured, the workpiece is placed on the marble bottom plate (2), and one end of the workpiece is abutted against the positioning block (6);
pushing the positioning ruler (8) to slide along the Y-axis direction, enabling the positioning ruler (8) to abut against the other end of the workpiece, reading position information on the grating ruler (11) by the reading head (10), transmitting the position information to the display device (12), and converting the position information into a length value of the workpiece by the display device (12) and displaying the length value of the workpiece to a user;
when the height of the workpiece is measured, the standard height of a step on the calibration block (9) closest to the workpiece is selected as a first height through visual observation;
if the height of the workpiece is higher than the first height, taking the upper end face of the step at the first height position as a reference face, sliding the dial indicator (7) to enable a measuring head of the dial indicator (7) to be in contact with the upper end face of the step at the first height position, locking the freedom degree of the dial indicator (7) in the Z-axis direction, clearing the number of the dial indicator (7), lifting and releasing the measuring head, repeating the steps for multiple times, checking whether the measuring head is still in contact with the upper end face of the step at the first height position, checking whether the number of the dial indicator (7) is still zero, lifting the measuring head after the checking is qualified, moving the measuring head to the upper part of the workpiece, releasing the measuring head to be in contact with the workpiece, wherein the reading displayed on the dial indicator (7) is the height difference between the workpiece and the first height, and summing the height difference and the first height to obtain the actually measured height of the workpiece;
if the height of the workpiece is lower than the first height, the workpiece is used as a reference surface, the dial indicator (7) is subjected to number reading and zero clearing, after the height difference between the workpiece and the first height is measured, the height difference and the first height are subjected to difference calculation, and the actually measured height of the workpiece is obtained;
when the flatness of the workpiece is detected, multipoint sampling can be carried out on the surface to be detected of the workpiece through a dial indicator (7) so as to obtain a numerical value required in the flatness calculation process.
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| CN202310161046.0A CN115876094A (en) | 2023-02-24 | 2023-02-24 | Precision part measuring and detecting platform and measuring and detecting method thereof |
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| CN202310161046.0A CN115876094A (en) | 2023-02-24 | 2023-02-24 | Precision part measuring and detecting platform and measuring and detecting method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN211012855U (en) * | 2020-01-02 | 2020-07-14 | 中核(天津)科技发展有限公司 | Length measuring device for large-size workpiece |
| CN212458221U (en) * | 2020-05-28 | 2021-02-02 | 湖北龙腾电子科技有限公司 | Circuit board bending degree detection device |
| CN114623769A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院微电子研究所 | Micro-bump height measuring device based on constant cross ratio and parameter calibration method |
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2023
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| US4689892A (en) * | 1985-06-17 | 1987-09-01 | Kalman Floor Company | Apparatus and method of measuring surface heights |
| CN101598525A (en) * | 2008-06-02 | 2009-12-09 | 力帆实业(集团)股份有限公司 | A kind of measuring method of automobile engine bearing |
| CN203224200U (en) * | 2013-04-28 | 2013-10-02 | 上海宝钢工业技术服务有限公司 | Calibration scale used in roller grinder measurement system |
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| CN211012855U (en) * | 2020-01-02 | 2020-07-14 | 中核(天津)科技发展有限公司 | Length measuring device for large-size workpiece |
| CN212458221U (en) * | 2020-05-28 | 2021-02-02 | 湖北龙腾电子科技有限公司 | Circuit board bending degree detection device |
| CN114623769A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院微电子研究所 | Micro-bump height measuring device based on constant cross ratio and parameter calibration method |
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