CN210036474U - Line ruler calibrating device based on grating length measurement - Google Patents
Line ruler calibrating device based on grating length measurement Download PDFInfo
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- CN210036474U CN210036474U CN201921212441.2U CN201921212441U CN210036474U CN 210036474 U CN210036474 U CN 210036474U CN 201921212441 U CN201921212441 U CN 201921212441U CN 210036474 U CN210036474 U CN 210036474U
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Abstract
The utility model discloses a linear ruler calibrating device based on grating length measurement, which comprises a horizontal guide rail and an air-float slide block; a zero position clamping mechanism for clamping the zero position end of the linear scale to be calibrated is arranged on the upper surface of the horizontal guide rail; the upper surface of the horizontal guide rail is provided with a rear end fixing clamp used for clamping the rear end of the linear ruler to be calibrated; the rear end of the horizontal guide rail is provided with a roller mechanism which supports the linear scale to be calibrated and reduces the frictional resistance of the tension loading mechanism; the rear end of the horizontal guide rail is provided with a tension force loading mechanism connected with the tail end of the linear ruler to be detected; a digital microscope is arranged on the air-floating slide block; and a scale grating is arranged on the right groove wall of the middle groove of the horizontal guide rail. The method has the advantages that the line images of the line ruler are shot by the digital microscope in the detection process, the grating ruler is used as a test reference, the method is small in artificial influence, high in repeatability, high in reliability, high in verification efficiency and high in verification accuracy.
Description
Technical Field
The utility model belongs to the technical field of the line chi is examined and determine, concretely relates to line chi calibrating installation based on grating length measurement.
Background
The line measurement is an important parameter in the length measurement and always plays the most basic measurement role. With the continuous development of scientific research, manufacturing, building industry and the like in the modern society, the linear ruler is being applied to various fields as a standard tool for distance measurement in a larger quantity.
Meanwhile, the wide application range of the linear ruler also puts higher requirements on the verification of the linear ruler, and the traditional verification method is adopted for the linear ruler of the steel tape type at present, namely, the detected ruler of the steel tape type is placed on a verification platform and is compared with a standard steel tape, and the scribing deviation is read by human eyes; the method has low detection precision and detection efficiency and wastes time and labor.
Therefore, a calibration device with higher efficiency and higher precision is urgently needed to calibrate the linear scale.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide a line chi calibrating installation based on grating length measurement.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a linear ruler calibrating device based on grating length measurement comprises a horizontal guide rail and an air-floating slide block which is arranged on the horizontal guide rail and can move back and forth along the horizontal guide rail;
a zero position clamping mechanism used for clamping the zero position end of the linear scale to be calibrated is arranged at the front end of the right side of the upper surface of the horizontal guide rail; the zero position clamping mechanism comprises a clamping bottom plate fixedly connected with the upper end face of the horizontal guide rail, and clamping side plates are vertically and fixedly arranged at the left end and the right end of the clamping bottom plate upwards; a fine adjustment screw rod and a guide rod are arranged between the two clamping side plates, two ends of the fine adjustment screw rod are rotatably connected with the clamping side plates, and a fine adjustment handle is arranged at the right end of the fine adjustment screw rod; two ends of the guide rod are fixedly connected with the clamping side plate; a sliding block is matched on the guide rod in a sliding way; the sliding block is also provided with a threaded hole for threaded matching with the fine adjustment screw; the upper part of the sliding block is provided with a pressing mechanism for pressing the zero position end of the linear scale to be calibrated on the sliding block;
the rear end of the right side of the upper surface of the horizontal guide rail is provided with a rear end fixing clamp for clamping the rear end of the linear scale to be calibrated;
the rear end of the horizontal guide rail is provided with a roller mechanism which supports the linear scale to be calibrated and reduces the frictional resistance of the tension loading mechanism;
the rear end of the horizontal guide rail is provided with a tension force loading mechanism connected with the tail end of the linear ruler to be detected;
the air-floating slide block is provided with a digital microscope for collecting images of the linear ruler to be calibrated;
and a scale grating is arranged on the right side groove wall of the middle groove of the horizontal guide rail along the front-back direction of the horizontal guide rail, and a grating reading head matched with the scale grating is arranged on the air floatation sliding block.
Preferably, the pressing mechanism comprises a supporting plate, the left end and the right end of the supporting plate are fixedly connected with a sliding block through fixing bolts, and a gap for accommodating the linear scale to be calibrated is formed between the supporting plate and the sliding block; a screw sleeve is fixedly arranged in the middle of the upper surface of the supporting plate, a zero clamping threaded hole is formed in the middle of the upper surface of the screw sleeve downwards, and a pressure head through hole penetrating to the bottom of the supporting plate is formed below the zero clamping threaded hole; and a pressing screw is arranged in the zero-position clamping threaded hole, and a pressing head positioned in a pressing head through hole is arranged at the bottom of the pressing screw.
Preferably, the clamping bottom plate is provided with strip holes distributed along the left and right directions, and the clamping bottom plate is connected with the horizontal guide rail by arranging a plurality of fastening bolts in the strip holes.
Preferably, the rear end fixing clamp comprises a rear end fixing bottom plate fixedly connected with the upper end face of the horizontal guide rail, the right end of the rear end fixing bottom plate is vertically and fixedly connected with one right-angle edge of the L-shaped connecting plate, and the other right-angle edge of the L-shaped connecting plate is positioned right above the rear end fixing bottom plate and is parallel to the rear end fixing bottom plate; the right angle edge of the L-shaped connecting plate parallel to the rear end fixed base plate is provided with a rear end pressing screw rod used for pressing the rear end of the linear scale to be detected, and the bottom of the rear end pressing screw rod is provided with a rear end pressure head.
Preferably, the tension loading mechanism comprises a first pressing plate and a second pressing plate; the left end and the right end of the first pressing piece and the second pressing piece are fixedly connected through a loading bolt, and a gap for accommodating the tail end of the line ruler to be determined is formed between the first pressing piece and the second pressing piece; a loading screw sleeve is arranged at the upper part of the second pressing piece, a loading screw is arranged in the loading screw sleeve, and a loading pressure head used for clamping the tail end of the linear scale to be detected is arranged at the end part of the loading screw;
the lower part of the second pressing piece is provided with a plurality of weight holes for hanging loading weights.
Preferably, the digital microscope is fixedly connected with the air-floating slide block through a microscope clamping mechanism; the microscope clamping mechanism comprises a first connecting plate fixedly connected with the side wall of the air floatation sliding block, a second connecting plate is fixedly arranged on the right side surface of the first connecting plate, and a screw mounting piece for mounting an adjusting screw is arranged at the upper part of the second connecting plate; the adjusting screw is downwards in threaded connection with the screw mounting part; the lower end of the adjusting screw is in contact connection with a third connecting plate, the third connecting plate is in up-and-down sliding fit with the second connecting plate, and a return spring for pressing the third connecting plate to the adjusting screw is arranged at the bottom of the sliding fit of the third connecting plate and the second connecting plate; the right side of the third connecting plate is fixedly connected with a clamping sleeve for clamping the digital microscope, and a clamping threaded hole for mounting a clamping bolt is formed in the side wall of the clamping sleeve.
Preferably, the upper edge of the horizontal guide rail between the zero-position clamping mechanism and the rear end fixing clamp is uniformly distributed on a plurality of supporting roller mechanisms which play a supporting role along the front and rear directions of the horizontal guide rail.
The utility model has the advantages that:
the method has the advantages that human eyes do not need to aim at the lines and manually record in the detection process, line pictures of the line ruler are shot through the digital microscope, line information is analyzed later, the grating ruler is used as a test reference, the method is small in artificial influence, high in repeatability, high in reliability, high in verification efficiency and high in verification accuracy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a first structural schematic diagram of the linear ruler calibrating apparatus based on grating length measurement of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is an enlarged view of a portion C of FIG. 1;
fig. 5 is a schematic structural diagram of the linear scale calibrating apparatus based on grating length measurement according to the present invention;
FIG. 6 is an enlarged view of a portion D of FIG. 2;
fig. 7 is a schematic structural view of the middle-zero clamping mechanism of the present invention;
fig. 8 is a schematic structural view of the middle and rear end fixing clamp of the present invention;
fig. 9 is a schematic structural view of the middle tension force loading mechanism of the present invention;
fig. 10 is a schematic structural view of a microscope clamping mechanism according to the present invention;
wherein the content of the first and second substances,
0-to-be-detected linear ruler, 1-horizontal guide rail and 2-air-floating slide block;
3-zero position clamping mechanism, 301-clamping bottom plate, 302-clamping side plate, 303-fine adjustment screw rod, 304-guide rod, 305-fine adjustment handle, 306-slide block, 307-support plate, 308-fixing bolt, 309-screw sleeve, 310-compression screw rod, 311-pressure head, 312-rotating handle and 313-strip hole;
4-rear end fixing clamp, 401-rear end fixing bottom plate, 402-L-shaped connecting plate, 403-rear end pressing screw rod and 404-rear end pressing head;
5-a roller mechanism;
6-tension loading mechanism, 601-first pressing sheet, 602-second pressing sheet, 603-loading bolt, 604-loading screw sleeve, 605-loading screw, 606-loading pressure head, 607-weight hole;
7-digital microscope, 8-scale grating;
9-supporting roller mechanism, 901-supporting roller, 902-roller support;
10-microscope clamping mechanism, 101-first web, 102-second web, 103-screw mount, 104-adjusting screw, 105-third web, 106-clamping sleeve, 107-clamping threaded hole.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "front", "back", "left", "right", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and only for convenience of describing the relationship term determined by the structural relationship of each component or element of the present invention, which is not specific to any component or element of the present invention, which is not to be construed as a limitation of the present invention.
In the present invention, terms such as "connected" and "connected" should be understood in a broad sense, and may be either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-6, a linear scale calibrating apparatus based on grating length measurement comprises a horizontal guide rail 1 and an air-floating slider 2 which is arranged on the horizontal guide rail 1 and can move back and forth along the horizontal guide rail 1; as shown in fig. 1, the air-bearing slider 2 moves forward and backward along the left side of the upper surface of the horizontal guide rail 1; meanwhile, the movement of the air-floating slider 2 on the horizontal guide rail 1 can be realized by adopting the prior art, for example, the air-floating slider 2 is driven by a direct-current servo motor and is matched with a high reduction ratio speed reducer, and the air-floating slider 2 is driven to move by connecting a synchronous belt, so the specific implementation structure for realizing the movement of the air-floating slider 2 along the horizontal guide rail 1 is not repeated herein;
a zero position clamping mechanism 3 for clamping a zero position end of a linear scale 0 to be calibrated is arranged at the front end of the right side of the upper surface of the horizontal guide rail 1; as shown in fig. 2 and 7, the zero position clamping mechanism 3 includes a clamping bottom plate 301 for fixedly connecting with the upper end surface of the horizontal guide rail 1, and clamping side plates 302 are vertically and vertically arranged at the left and right ends of the clamping bottom plate 301; a fine adjustment screw 303 and a guide rod 304 are arranged between the two clamping side plates 302, two ends of the fine adjustment screw 303 are rotatably connected with the clamping side plates 302, and a fine adjustment handle 305 is arranged at the right end of the fine adjustment screw 303; two ends of the guide rod 304 are fixedly connected with the clamping side plate 302; a sliding block 306 is slidably matched on the guide rod 304; the sliding block 306 is also provided with a threaded hole for threaded matching with the fine adjustment screw 303; a pressing mechanism for pressing the zero position end of the linear scale to be calibrated on the sliding block 306 is arranged at the upper part of the sliding block 306; when the device is used specifically, after the zero position end of the linear scale to be calibrated is pressed tightly on the sliding block 306 by the pressing mechanism, if the distance of the zero position end in the left and right directions needs to be adjusted, the fine adjustment handle 305 is rotated, and under the threaded fit of the sliding block 306 and the fine adjustment screw 303 and the limiting and guiding effects of the guide rod 304 on the sliding block 306, the sliding block 306 can move in the left and right directions along the guide rod 304, so that the movement in the left and right directions of the zero position end of the linear scale to be calibrated, which is positioned at the upper part of the sliding block 306, is driven;
the rear end of the right side of the upper surface of the horizontal guide rail 1 is provided with a rear end fixing clamp 4 for clamping the rear end of the linear scale 0 to be calibrated;
the rear end of the horizontal guide rail 1 is provided with a roller mechanism 5 which supports the linear scale 0 to be calibrated and reduces the frictional resistance of the tension loading mechanism 6;
the rear end of the horizontal guide rail 1 is provided with a tension force loading mechanism 6 connected with the tail end of the linear ruler 0 to be detected; the air-floating slide block 2 is provided with a digital microscope 7 for collecting images of the linear ruler to be calibrated;
a scale grating 8 is arranged on the right side groove wall of the middle groove of the horizontal guide rail 1 along the front-back direction of the horizontal guide rail 1, and a grating reading head matched with the scale grating 8 is arranged on the air-floating slide block 2; in the application, a scale grating 8 and a grating reading head form a grating ruler, the resolution of the grating ruler is 0.05 mu m, a grating ruler with 20 mu m grid pitch in Renyshao of England is selected, and the scale grating 8 is adhered to the wall of a horizontal guide rail 1 with high linearity through back glue carried by the scale grating 8; the grating is used as a positioning feedback system, and the positioning resolution can reach 0.05 mu m or more.
Preferably, as shown in fig. 7, the pressing mechanism includes a supporting plate 307, the left and right ends of the supporting plate 307 are fixedly connected with a sliding block 306 through fixing bolts 308, and a gap for accommodating the linear scale 0 to be calibrated is formed between the supporting plate 307 and the sliding block 306; a screw sleeve 309 is fixedly arranged in the middle of the upper surface of the supporting plate 307, a zero clamping threaded hole is downwards formed in the middle of the upper surface of the screw sleeve 309, and a pressure head through hole penetrating to the bottom of the supporting plate 307 is formed below the zero clamping threaded hole; a compression screw 310 is arranged in the zero clamping threaded hole, and a pressure head 311 positioned in a pressure head through hole is arranged at the bottom of the compression screw 310.
Specifically, the upper portion of the pressing screw 310 is vertically and fixedly provided with a rotating handle 312.
During specific use, when the zero position end of the linear scale 0 to be detected is inserted into a gap between the supporting plate 307 and the sliding block 306, the rotating handle 312 on the upper portion of the pressing screw 310 is rotated, so that the pressing screw 310 is screwed downwards along the zero position clamping threaded hole, and the pressing head 311 is driven to press downwards until the zero position end of the linear scale 0 to be detected is pressed on the sliding block 306.
Preferably, as shown in fig. 7, the clamping base plate 301 is provided with elongated holes 313 distributed in the left and right directions, and the clamping base plate 301 is connected to the horizontal guide rail 1 by providing a plurality of fastening bolts in the elongated holes.
Preferably, as shown in fig. 3 and 8, the rear end fixing clamp 4 includes a rear end fixing bottom plate 401 for fixedly connecting with the upper end surface of the horizontal guide rail 1, the right end of the rear end fixing bottom plate 401 is vertically and fixedly connected with one right-angle side of the L-shaped connecting plate 402, and the other right-angle side of the L-shaped connecting plate 402 is located right above the rear end fixing bottom plate 401 and is parallel to the rear end fixing bottom plate 401; a rear-end pressing screw 403 used for pressing the rear end of the linear scale 0 to be calibrated is arranged on the right-angle edge of the L-shaped connecting plate 402 parallel to the rear-end fixed bottom plate 401, and a rear-end pressure head 404 is arranged at the bottom of the rear-end pressing screw 403;
during the specific use, after the rear end of waiting to examine the linear scale 0 passes between the right-angle side of the L type connecting plate 402 of rear end PMKD 401 and top, then rotatory rear end compresses tightly screw rod 403, makes rear end compression screw rod 403 precession downwards to drive rear end pressure head 404 and push down, until will wait to examine and determine the rear end of linear scale 0 and compress tightly on rear end PMKD 401.
Preferably, as shown in fig. 6 and 9, the tension loading mechanism 6 includes a first pressing plate 601 and a second pressing plate 602; the left end and the right end of the first pressing piece 601 and the second pressing piece 602 are fixedly connected through a loading bolt 603, and a gap for accommodating the tail end of the linear scale 0 to be calibrated is formed between the first pressing piece 601 and the second pressing piece 602; a loading screw rod sleeve 604 is arranged at the upper part of the second pressing piece 602, a loading screw rod 605 is arranged in the loading screw rod sleeve 604, and a loading pressure head 606 used for clamping the tail end of the linear scale 0 to be calibrated is arranged at the end part of the loading screw rod 605;
the lower part of the second pressing plate 602 is provided with a plurality of weight holes 607 for hanging loading weights.
When tension needs to be loaded, the tail end of the linear scale 0 to be calibrated passes through the space between the first pressing piece 601 and the second pressing piece 602, and then the loading screw 605 is rotated to press the tail end of the linear scale 0 to be calibrated on the second pressing piece 602; the desired loading weight is then suspended over the weight hole 607 to apply the desired tension to the rule 0 to be calibrated.
Preferably, the digital microscope 7 is fixedly connected with the air-bearing slide block 2 through a microscope clamping mechanism 10; as shown in fig. 4 and 10, the microscope clamping mechanism 10 includes a first connecting plate 101 for fixedly connecting with a side wall of the air-bearing slider 2, a second connecting plate 102 is fixedly arranged on a right side surface of the first connecting plate 101, and a screw mounting member 103 for mounting an adjusting screw 104 is arranged on an upper portion of the second connecting plate 102; the adjusting screw 104 is downwards in threaded connection with the screw mounting piece 103; the lower end of the adjusting screw 104 is in contact connection with a third connecting plate 105, the third connecting plate 105 and the second connecting plate 102 are in up-and-down sliding fit, and a return spring for pressing the third connecting plate 105 to the adjusting screw 104 is arranged at the bottom of the sliding fit of the third connecting plate 105 and the second connecting plate 102; for example, a return spring is arranged between the bottom of the chute of the second connecting plate 102 and the bottom of the slider of the third connecting plate 105, when the adjusting screw 104 is rotated, the lower end of the adjusting screw 104 abuts against the third connecting plate 105, so that the third connecting plate 105 moves downward, the return spring is compressed while moving downward, and when the adjusting screw 104 is rotated reversely, the third connecting plate 105 is always in contact with the lower end of the adjusting screw 104 under the action of the return spring, so that the upward movement is realized; the sliding fit can also be any other structure which can realize the up-and-down sliding fit; the right side of the third connecting plate 105 is fixedly connected with a clamping sleeve 106 used for clamping the digital microscope 7, and a clamping threaded hole 107 for installing a clamping bolt is formed in the side wall of the clamping sleeve 106;
when the digital microscope clamp is used, firstly, the digital microscope 7 is sleeved into the clamping sleeve 106, and then the digital microscope 7 is fixed by arranging a clamping bolt in the clamping threaded hole 107; then, the adjusting screw 104 is manually rotated to enable the third connecting plate 105 to drive the clamping sleeve 106 to slide up and down, so as to adjust the height of the digital microscope 7, thereby achieving the best observation effect.
Preferably, the upper part of the horizontal guide rail 1 between the zero-position clamping mechanism 3 and the rear end fixing clamp 4 is uniformly distributed on a plurality of supporting roller mechanisms 9 playing a supporting role along the front and rear directions of the horizontal guide rail 1;
specifically, the supporting roller mechanism 9 includes a supporting roller 901, and the supporting roller 901 is fixedly connected to the horizontal rail 14 through a roller support 902.
The utility model provides a line chi calibrating installation based on grating length measurement, its embodiment is as follows:
(1) firstly, placing the linear scale 0 to be calibrated on the supporting roller mechanism 9, then inserting the zero position end of the linear scale 1 to be calibrated into a gap between the supporting plate 307 and the sliding block 306, adjusting the zero position and enabling the linear scale 0 to be calibrated to be parallel to the horizontal guide rail 2, rotating the rotary handle 312 at the upper part of the compression screw 310 to enable the compression screw 310 to downwards screw along the threaded hole, and driving the pressure head 311 to downwards press until the zero position end of the linear scale 0 to be calibrated is pressed on the sliding block 306;
(2) when tension is needed, a proper loading weight is hung on the tension loading mechanism 6, so that the tension of the linear ruler 0 to be detected reaches a set value; when tension is not needed, the rear end of the linear ruler 0 to be calibrated is pressed tightly through the rear end fixing clamp 4
(3) The air-floating slide block 2 drives the digital microscope 7 to move from front to back along the horizontal guide rail 1, and after the digital microscope reaches a preset position, a line picture of a line ruler is shot; meanwhile, when the air-floating slide block 2 moves back and forth along the horizontal guide rail 1, a grating ruler consisting of the scale grating 8 and a grating reading head monitors the length of a walking stroke in real time, and the nominal value of the lines of the line ruler can be shot through the digital microscope 7; the measured length of the grating ruler is differenced with the nominal value shot by the digital microscope 7, so that whether the precision of the detected line ruler is qualified or not can be reflected; after shooting is finished, the air-bearing slide block 2 returns to the front-end initial position again;
(4) and after the whole line ruler is calibrated, loosening each structure for pressing the line ruler, and taking out the line ruler.
The calibration device does not need human eyes to aim at the lines and manually record in the detection process, but shoots the line picture of the line ruler through the digital microscope 7, analyzes the line information, and takes the grating ruler 8 as a test reference.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.
Claims (7)
1. A linear ruler calibrating device based on grating length measurement comprises a horizontal guide rail and an air-floating slide block which is arranged on the horizontal guide rail and can move back and forth along the horizontal guide rail; it is characterized in that the utility model is characterized in that,
a zero position clamping mechanism used for clamping the zero position end of the linear scale to be calibrated is arranged at the front end of the right side of the upper surface of the horizontal guide rail; the zero position clamping mechanism comprises a clamping bottom plate fixedly connected with the upper end face of the horizontal guide rail, and clamping side plates are vertically and fixedly arranged at the left end and the right end of the clamping bottom plate upwards; a fine adjustment screw rod and a guide rod are arranged between the two clamping side plates, two ends of the fine adjustment screw rod are rotatably connected with the clamping side plates, and a fine adjustment handle is arranged at the right end of the fine adjustment screw rod; two ends of the guide rod are fixedly connected with the clamping side plate; a sliding block is matched on the guide rod in a sliding way; the sliding block is also provided with a threaded hole for threaded matching with the fine adjustment screw; the upper part of the sliding block is provided with a pressing mechanism for pressing the zero position end of the linear scale to be calibrated on the sliding block;
the rear end of the right side of the upper surface of the horizontal guide rail is provided with a rear end fixing clamp for clamping the rear end of the linear scale to be calibrated;
the rear end of the horizontal guide rail is provided with a roller mechanism which supports the linear scale to be calibrated and reduces the frictional resistance of the tension loading mechanism;
the rear end of the horizontal guide rail is provided with a tension force loading mechanism connected with the tail end of the linear ruler to be detected;
the air-floating slide block is provided with a digital microscope for collecting images of the linear ruler to be calibrated;
and a scale grating is arranged on the right side groove wall of the middle groove of the horizontal guide rail along the front-back direction of the horizontal guide rail, and a grating reading head matched with the scale grating is arranged on the air floatation sliding block.
2. The calibration device of the linear scale based on the grating length measurement as claimed in claim 1, wherein the pressing mechanism comprises a support plate, the left end and the right end of the support plate are fixedly connected with a slide block through fixing bolts, and a gap for accommodating the linear scale to be calibrated is formed between the support plate and the slide block; a screw sleeve is fixedly arranged in the middle of the upper surface of the supporting plate, a zero clamping threaded hole is formed in the middle of the upper surface of the screw sleeve downwards, and a pressure head through hole penetrating to the bottom of the supporting plate is formed below the zero clamping threaded hole; and a pressing screw is arranged in the zero-position clamping threaded hole, and a pressing head positioned in a pressing head through hole is arranged at the bottom of the pressing screw.
3. The calibration device of the linear ruler based on grating length measurement as claimed in claim 2, wherein the clamping bottom plate is provided with strip holes distributed along the left and right directions, and the clamping bottom plate is connected with the horizontal guide rail by arranging a plurality of fastening bolts in the strip holes.
4. The linear ruler calibration device based on grating length measurement as claimed in claim 1, wherein the rear end fixing clamp comprises a rear end fixing bottom plate for fixedly connecting with the upper end face of the horizontal guide rail, the right end of the rear end fixing bottom plate is vertically and fixedly connected with one right-angle side of the L-shaped connecting plate, and the other right-angle side of the L-shaped connecting plate is positioned right above the rear end fixing bottom plate and is parallel to the rear end fixing bottom plate; the right angle edge of the L-shaped connecting plate parallel to the rear end fixed base plate is provided with a rear end pressing screw rod used for pressing the rear end of the linear scale to be detected, and the bottom of the rear end pressing screw rod is provided with a rear end pressure head.
5. The calibration device of the linear ruler based on grating length measurement according to claim 1, wherein the tension force loading mechanism comprises a first pressing plate and a second pressing plate; the left end and the right end of the first pressing piece and the second pressing piece are fixedly connected through a loading bolt, and a gap for accommodating the tail end of the line ruler to be determined is formed between the first pressing piece and the second pressing piece; a loading screw sleeve is arranged at the upper part of the second pressing piece, a loading screw is arranged in the loading screw sleeve, and a loading pressure head used for clamping the tail end of the linear scale to be detected is arranged at the end part of the loading screw;
the lower part of the second pressing piece is provided with a plurality of weight holes for hanging loading weights.
6. The grating-based linear scale calibrating apparatus according to claim 1, wherein the digital microscope is fixedly connected with the air-bearing slider through a microscope clamping mechanism; the microscope clamping mechanism comprises a first connecting plate fixedly connected with the side wall of the air floatation sliding block, a second connecting plate is fixedly arranged on the right side surface of the first connecting plate, and a screw mounting piece for mounting an adjusting screw is arranged at the upper part of the second connecting plate; the adjusting screw is downwards in threaded connection with the screw mounting part; the lower end of the adjusting screw is in contact connection with a third connecting plate, the third connecting plate is in up-and-down sliding fit with the second connecting plate, and a return spring for pressing the third connecting plate to the adjusting screw is arranged at the bottom of the sliding fit of the third connecting plate and the second connecting plate; the right side of the third connecting plate is fixedly connected with a clamping sleeve for clamping the digital microscope, and a clamping threaded hole for mounting a clamping bolt is formed in the side wall of the clamping sleeve.
7. The calibration device of the linear ruler based on grating length measurement as claimed in claim 1, wherein the horizontal guide rail between the zero-position clamping mechanism and the rear end fixing clamp is uniformly distributed on a plurality of supporting roller mechanisms for supporting along the front and rear directions of the horizontal guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212441.2U CN210036474U (en) | 2019-07-30 | 2019-07-30 | Line ruler calibrating device based on grating length measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212441.2U CN210036474U (en) | 2019-07-30 | 2019-07-30 | Line ruler calibrating device based on grating length measurement |
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| CN210036474U true CN210036474U (en) | 2020-02-07 |
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| CN201921212441.2U Active CN210036474U (en) | 2019-07-30 | 2019-07-30 | Line ruler calibrating device based on grating length measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252097A (en) * | 2021-05-10 | 2021-08-13 | 安徽联合检验检测有限公司 | Quick detection equipment based on metering device and use method thereof |
| CN113441465A (en) * | 2021-05-27 | 2021-09-28 | 成都飞机工业（集团）有限责任公司 | Cleaning device for linear grating ruler and using method thereof |
-
2019
- 2019-07-30 CN CN201921212441.2U patent/CN210036474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252097A (en) * | 2021-05-10 | 2021-08-13 | 安徽联合检验检测有限公司 | Quick detection equipment based on metering device and use method thereof |
| CN113441465A (en) * | 2021-05-27 | 2021-09-28 | 成都飞机工业（集团）有限责任公司 | Cleaning device for linear grating ruler and using method thereof |
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