CN210268535U - Grating length measuring device - Google Patents
Grating length measuring device Download PDFInfo
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- CN210268535U CN210268535U CN201921212411.1U CN201921212411U CN210268535U CN 210268535 U CN210268535 U CN 210268535U CN 201921212411 U CN201921212411 U CN 201921212411U CN 210268535 U CN210268535 U CN 210268535U
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Abstract
The utility model discloses a grating length measuring device, which comprises a horizontal guide rail; the front end of the horizontal guide rail is fixedly connected with a static clamping seat, and a static measuring shaft for mounting a measuring cap is arranged on the static clamping seat; a movable clamping seat is connected in a horizontal sliding groove in the upper surface of the horizontal guide rail in a sliding manner, and a movable measuring shaft for mounting a measuring cap is arranged on the movable clamping seat; and a scale grating is arranged on the left side wall of a horizontal sliding groove of the supporting platform for supporting the measuring tool to be measured, which is arranged between the static clamping seat and the dynamic clamping seat, and a grating reading head matched with the scale grating is arranged at the bottom of the first main sliding block. The grating length measuring device indirectly measures the length of the measuring tool to be measured through the displacement sensor formed by the scale grating and the grating reading head, human eyes do not need to read, and measuring accuracy and precision are high.
Description
Technical Field
The utility model belongs to the technical field of the length measurement, concretely relates to grating length measuring device.
Background
The length measurement is a necessary item for the precision detection of the calibration measuring tool such as a gauge block, a gauge rod, a calibration rod and the like. At present, most of calibration measuring tools such as a measuring block, a measuring rod, a calibration rod and the like adopt a traditional calibration method, namely, a measuring tool to be measured is placed on a calibration table, the measuring tool to be measured is compared with a standard measuring scale, and the length of the measuring tool to be measured is read by human eyes; the method has large reading error of human eyes, thereby causing low verification precision.
Therefore, a length measuring device with higher precision is urgently needed to carry out length measuring verification on the measuring tools.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a grating length measuring device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a grating length measuring device comprises a horizontal guide rail;
the front end of the horizontal guide rail is fixedly connected with a static clamping seat, and a static measuring shaft used for mounting a measuring cap is arranged on the static clamping seat;
a movable clamping seat is connected in a horizontal sliding groove in the upper surface of the horizontal guide rail in a sliding manner, and a movable measuring shaft for mounting a measuring cap is arranged on the movable clamping seat;
the movable clamping seat comprises a movable clamping seat sliding block mechanism at the bottom and a movable shaft measuring support at the upper part; the movable clamping seat sliding block mechanism comprises a first main sliding block matched with the top end face of the horizontal guide rail, a first side sliding block matched with the left side wall of the horizontal sliding groove is arranged at the bottom of the first main sliding block, and a first auxiliary sliding block matched with the right side wall of the horizontal sliding groove is arranged on the right end face of the first side sliding block;
a plurality of first air flow holes are formed in the left side and the right side of the bottom end face of the first main sliding block, the left end face of the first side sliding block and the right end face of the first auxiliary sliding block; each sliding block provided with a first air hole is provided with a first air inlet communicated with the first air hole on the sliding block, and the first air inlet is connected with air supply equipment through a pipeline;
the left side and the right side of the bottom end surface of the first main sliding block and the left end surface of the first side sliding block are respectively provided with a first adsorption groove, the first adsorption grooves are provided with a first air outlet, the first main sliding block and the first side sliding block are provided with a first air outlet communicated with the first air outlet, and the first air outlet is connected with a vacuum generator through a pipeline;
a supporting platform used for supporting a measuring tool to be measured is arranged between the static clamping seat and the dynamic clamping seat, and the supporting platform is in sliding connection with a horizontal sliding groove in the upper surface of the horizontal guide rail;
the left side wall of the horizontal sliding groove is provided with a scale grating, and the bottom of the first main sliding block is provided with a grating reading head matched with the scale grating.
Preferably, the left end face and the right end of the first main sliding block and the left end face of the first side sliding block are provided with first uniform distribution grooves communicated with the first airflow holes.
Preferably, the dynamic measurement shaft support comprises a dynamic measurement shaft horizontal plate fixedly connected with the first main sliding block, a dynamic measurement shaft vertical plate is fixedly arranged at the upper part of the dynamic measurement shaft horizontal plate, a dynamic measurement shaft mounting block is fixedly arranged at the top of the dynamic measurement shaft vertical plate, and a dynamic measurement shaft through hole extending along the front-back direction of the horizontal guide rail and used for mounting a dynamic measurement shaft is arranged on the dynamic measurement shaft mounting block; the side of the dynamic measuring shaft mounting block is provided with a threaded hole penetrating through the dynamic measuring shaft through hole, a dynamic measuring shaft clamping bolt is arranged in the threaded hole, and the end part of the dynamic measuring shaft clamping bolt is provided with a dynamic measuring shaft clamping block used for clamping a dynamic measuring shaft.
Preferably, the supporting platform comprises a supporting slide block mechanism at the bottom and a supporting mechanism at the upper part; the supporting slide block mechanism comprises a supporting main slide block matched with the top end face of the horizontal guide rail, and a supporting side slide block matched with the left side wall of the horizontal sliding groove is arranged at the bottom of the supporting main slide block;
the left side and the right side of the bottom end face of the supporting main sliding block and the left end face of the supporting side sliding block are respectively provided with a plurality of supporting airflow holes; each sliding block provided with a supporting airflow hole is provided with a supporting air inlet hole communicated with the supporting airflow hole on the sliding block, and the supporting air inlet hole is connected with air supply equipment through a pipeline;
the left and right sides of the bottom end face of the main supporting slider and the left end face of the side supporting slider are both provided with supporting adsorption grooves, the supporting adsorption grooves are provided with supporting air outlets, supporting main supporting slider and supporting side slider are provided with supporting exhaust holes communicated with the supporting air outlets, and the supporting exhaust holes are connected with a vacuum generator through pipelines.
Preferably, the left end face and the right end of the main supporting sliding block and the left end face of the side supporting sliding block are provided with supporting uniform distribution grooves communicated with the supporting airflow holes.
Preferably, the supporting mechanism comprises a working table plate, the bottom of the working table plate is fixedly connected with a rotating plate, and the rotating plate is rotatably connected with a bottom plate of the adjusting seat; a transition plate is fixedly arranged at the bottom of the adjusting seat, and the transition plate is in sliding connection with the adapter plate at the bottom in the left-right direction; a fine adjustment screw is rotatably connected to the right end face of the transition plate, the fine adjustment screw is in threaded connection with the right side wall of the adjusting seat, and a fine adjustment handle is arranged at the right end of the fine adjustment screw;
the bottom of the adapter plate is fixedly provided with a lifting nut which downwards penetrates through the supporting main sliding table, and the inner wall surface of the lifting nut is in threaded connection with a lifting screw rod; the bottom of the lifting screw is coaxially and fixedly connected with a driven wheel, the driven wheel is connected with a driving wheel through a conveyor belt, and the driving wheel is coaxially and fixedly connected with a rotating shaft of a lifting motor; the lifting motor is arranged on the main supporting plate, the front end and the rear end of the main supporting plate are vertically and fixedly connected with side supporting plates, and the top ends of the side supporting plates are fixedly connected with the main supporting sliding blocks; the front end and the rear end of the bottom of the adapter plate are symmetrically provided with guide rods, and the guide rods are connected with the main supporting slide block and the main supporting plate in a sliding mode downwards.
Preferably, the front end and the rear end of the transition plate are symmetrically provided with fine adjustment sliding blocks, and the transition plate is provided with fine adjustment guide rails which are in sliding fit with the fine adjustment sliding blocks.
Preferably, a rotary adjusting block is arranged at the front end of the rotating plate, an adjusting threaded hole is formed in the rotary adjusting block, a rotary adjusting screw rod is arranged in the adjusting threaded hole, a baffle fixedly connected with the bottom of the adjusting seat is arranged at the left end of the rotary adjusting block, and the left end of the rotary adjusting screw rod is hinged with the baffle; the right end of the rotary adjusting screw rod penetrates through the right end face of the adjusting seat, and a strip-shaped hole for the rotary adjusting screw rod to move is formed in the right end face of the adjusting seat.
Preferably, the static clamping seat comprises a static shaft horizontal plate fixedly connected with the horizontal guide rail, a static shaft vertical plate is fixedly arranged at the upper part of the static shaft horizontal plate, a static shaft mounting block is fixedly arranged at the top of the static shaft vertical plate, and a static shaft through hole which extends along the front-back direction of the horizontal guide rail 1 and is used for mounting a static shaft is arranged on the static shaft mounting block; the side of the static shaft mounting block is provided with a threaded hole penetrating through the static shaft through hole, a static shaft clamping bolt is arranged in the threaded hole, and the end part of the static shaft clamping bolt is provided with a static shaft clamping block used for clamping a static shaft.
Preferably, the static shaft comprises a static shaft sleeve, and a sleeve shaft is arranged in the static shaft sleeve; an adjusting nut is fixedly arranged at the front end of the static measurement shaft sleeve, an adjusting bolt is arranged in the adjusting nut, and the end part of the adjusting bolt is in contact connection with the sleeve shaft;
a cap measuring shaft mounting seat is fixedly arranged at the rear end of the static measuring shaft sleeve, and a cap measuring shaft is arranged in the middle of the cap measuring shaft mounting seat in a sliding manner; the rear end of the sleeve shaft is provided with a measuring cap shaft hole, and the end part of the measuring cap shaft is hinged with the measuring cap shaft hole;
and a reset spring is sleeved on the measuring cap shaft between the end part of the measuring cap shaft hole and the measuring cap shaft mounting seat.
The utility model has the advantages that:
(1) the grating length measuring device indirectly measures the length of the measuring tool to be measured through the displacement sensor consisting of the scale grating and the grating reading head, human eyes are not needed for reading, and the measuring accuracy and precision are high;
(2) the air film that has stable thickness can be formed between each fitting surface of moving each slider of pressing from both sides tight seat and horizontal guide rail among the grating length measuring device of this application, thereby realize moving the frictionless contact between pressing from both sides tight seat and the horizontal guide rail, thereby make the straight line motion that the tight seat of movable clamp can realize high stability on horizontal guide rail, carry out the accurate measurement of displacement for the displacement sensor that scale grating and grating reading head are constituteed and provide the guarantee, and then can guarantee to treat side measuring tool length measuring's precision.
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 schematic perspective view of the grating length measuring device of the present invention;
FIG. 2 is a right side view showing the structure of the grating length measuring device of the present invention;
fig. 3 is a schematic perspective view of a structure of a middle static clamping seat of the present invention;
fig. 4 is a schematic perspective view of a middle static clamping seat of the present invention;
FIG. 5 is a first schematic perspective view of the support platform of the present invention;
FIG. 6 is a schematic perspective view of a second structural supporting platform of the present invention;
fig. 7 is a third schematic perspective view of the structure of the support platform of the present invention;
FIG. 8 is a schematic perspective view of the middle support slider mechanism of the present invention;
fig. 9 is a schematic perspective view of the structure of the middle adjusting seat of the present invention;
FIG. 10 is a schematic perspective view of a middle adjustment seat of the present invention;
FIG. 11 is a first schematic perspective view of the middle movable clamping base according to the present invention;
FIG. 12 is a schematic perspective view of a second clamping seat of the middle movable clamping device of the present invention;
fig. 13 is a schematic perspective view of the structure of the middle static shaft of the present invention;
fig. 14 is a schematic view of the internal structure of the middle static shaft according to the present invention;
wherein the content of the first and second substances,
1-horizontal guide rail, 101-horizontal sliding groove;
2-a static clamping seat, 201-a static shaft horizontal plate, 202-a static shaft vertical plate, 203-a static shaft mounting block, 204-a static shaft through hole, 205-a static shaft clamping bolt and 206-a static shaft clamping block;
3-supporting platform, 301-supporting main sliding block, 302-supporting side sliding block, 303-supporting airflow hole, 304-supporting air inlet hole, 305-supporting adsorption groove, 306-supporting air outlet hole, 307-supporting exhaust hole, 308-supporting uniform distribution groove, 309-worktable plate, 310-rotating plate, 311-adjusting seat, 312-transition plate, 313-adapter plate, 314-lifting screw, 315-lifting screw, 316-driven wheel, 317-driving wheel, 318-lifting motor, 319-main supporting plate, 320-side supporting plate, 321-guide rod, 322-fine adjusting screw rod, 323-fine adjusting handle, 324-fine adjusting sliding block, 325-fine adjusting guide rail, 326-rotating adjusting block, 327-rotating adjusting screw rod, 328-strip-shaped hole, 329-a baffle plate;
4-a movable clamping seat, 401-a first main sliding block, 402-a first side sliding block, 403-a first auxiliary sliding block, 404-a first air flow hole, 405-a first air inlet hole, 406-a first adsorption groove, 407-a first air outlet hole, 408-a first air outlet hole and 409-a first uniform distribution groove;
5-static measuring shaft, 501-static measuring shaft sleeve, 502-sleeve shaft, 503-adjusting nut, 504-adjusting bolt, 505-measuring cap shaft mounting seat, 506-measuring cap shaft, 507-measuring cap shaft hole and 508-reset spring;
6-moving the measuring shaft;
7-dynamic measuring shaft support, 701-dynamic measuring shaft horizontal plate, 702-dynamic measuring shaft vertical plate, 703-dynamic measuring shaft mounting block, 704-dynamic measuring shaft through hole and 705-dynamic measuring shaft clamping bolt;
8-an auxiliary support;
9-scale grating, 10-grating reading head.
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. 1-2, a grating length measuring device includes a horizontal guide rail 1;
the front end of the horizontal guide rail 1 is fixedly connected with a static clamping seat 2, and a static measuring shaft 5 for mounting a measuring cap is arranged on the static clamping seat 2;
a movable clamping seat 4 is connected in a horizontal sliding groove 101 in the upper surface of the horizontal guide rail 1 in a sliding manner, and a movable measuring shaft 6 for mounting a measuring cap is arranged on the movable clamping seat 4; the static measuring shaft 5 and the dynamic measuring shaft 6 are coaxially arranged;
the movable clamping seat 4 comprises a movable clamping seat sliding block mechanism at the bottom and a movable shaft measuring support 7 at the upper part; as shown in fig. 11-12, the movable clamping seat slider mechanism includes a first main slider 401 engaged with the top end surface of the horizontal guide rail 1, a first side slider 402 engaged with the left side wall of the horizontal sliding chute 101 is disposed at the bottom of the first main slider 401, and a first auxiliary slider 403 engaged with the right side wall of the horizontal sliding chute 101 is disposed on the right end surface of the first side slider 402;
a plurality of first air flow holes 404 are formed in the left side and the right side of the bottom end face of the first main sliding block 401, the left end face of the first side sliding block 402 and the right end face of the first auxiliary sliding block 403; each sliding block provided with the first air hole 404 is provided with a first air inlet hole 405 communicated with the first air hole 404 on the sliding block, the first air inlet hole 405 is connected with an air supply device through a pipeline, and the air supply device is an air compressor generally;
the left side and the right side of the bottom end surface of the first main slider 401 and the left end surface of the first side slider 402 are both provided with a first adsorption groove 406, the first adsorption groove 406 is provided with a first air outlet 407, the first main slider 401 and the first side slider 402 are provided with a first air outlet 408 communicated with the first air outlet 407, and the first air outlet 408 is connected with a vacuum generator through a pipeline;
that is, in this application, the first main slider 401, the first side slider 402 and the first auxiliary slider 403 in the movable clamp holder 4 constitute an air-floating slider, so as to realize the air-floating sliding connection with the horizontal guide rail 1, as follows:
when the air-assisted sliding block is used, air enters between the matching surfaces of the sliding blocks and the horizontal guide rail 1 through the first air inlet holes 405 and the first air flow holes 404 by external air supply equipment, so that air films are formed between the bottom end surface of the first main sliding block 401 and the top end surface of the horizontal guide rail 1, between the left end surface of the first side sliding block 402 and the left end surface of the horizontal sliding chute 101, and between the right end surface of the first auxiliary sliding block 403 and the right end surface of the horizontal sliding chute 101, and the movable clamping seat 4 can be floated by the air films; meanwhile, the gas in the first adsorption groove 406 is sucked away along the first air outlet 407 and the first air outlet 408 under the action of the external vacuum generator to form vacuum, each slide block is sucked to the corresponding matching surface due to the vacuum adsorption effect, meanwhile, the gas at each matching surface can be sprayed out from the side surface of the slide block and the position with the cutter groove, and after the air entering and discharged from each matching surface reaches the required balance, the thickness of the air film between each end surface is not changed any more, so that the friction-free contact between the movable clamping seat 4 and the horizontal guide rail 1 is realized;
a supporting platform 3 for supporting a measuring tool to be measured is arranged between the static clamping seat 2 and the dynamic clamping seat 4, and the supporting platform 3 is in sliding connection with a horizontal sliding groove 101 on the upper surface of the horizontal guide rail 1;
the left side wall of the horizontal sliding groove 101 is provided with a scale grating 9, and the bottom of the first main sliding block 401 is provided with a grating reading head 10 matched with the scale grating 9.
Preferably, the left end and the right end of the first main slider 401 and the left end surface of the first side slider 402 are provided with first uniform distribution grooves 409 communicated with the first airflow holes 404; the first uniform distribution groove 409 is of a rectangular structure; the gas sprayed from the first gas flow holes 404 realizes the function of gas flow distribution through the first distribution groove 409, so that the gas is rapidly and uniformly distributed on the whole gas floating surface;
the first adsorption tank 406 is located inside a rectangular structure surrounded by the first airflow holes 404.
Preferably, as shown in fig. 11 to 12, the dynamic measurement shaft support 7 includes a dynamic measurement shaft horizontal plate 701 fixedly connected to the first main sliding block 401, a dynamic measurement shaft vertical plate 702 is fixedly disposed on an upper portion of the dynamic measurement shaft horizontal plate 701, a dynamic measurement shaft mounting block 703 is fixedly disposed on a top portion of the dynamic measurement shaft vertical plate 702, and a dynamic measurement shaft through hole 704 extending in a front-back direction of the horizontal guide rail 1 and used for mounting the dynamic measurement shaft 6 is disposed on the dynamic measurement shaft mounting block 703; the side of the dynamic measuring shaft mounting block 703 is provided with a threaded hole penetrating through to a dynamic measuring shaft through hole 704, a dynamic measuring shaft clamping bolt 705 is arranged in the threaded hole, and the end of the dynamic measuring shaft clamping bolt 705 is provided with a dynamic measuring shaft clamping block used for clamping a dynamic measuring shaft 6.
Preferably, the supporting platform 3 comprises a supporting slide block mechanism at the bottom and a supporting mechanism at the upper part; as shown in fig. 5-7, the supporting slider mechanism includes a supporting main slider 301 engaged with the top end surface of the horizontal guide rail 1, and a supporting side slider 302 engaged with the left side wall of the horizontal sliding chute 101 is provided at the bottom of the supporting main slider 301;
a plurality of supporting airflow holes 303 are formed in the left side and the right side of the bottom end face of the supporting main sliding block 301 and the left end face of the supporting side sliding block 302; each sliding block provided with the supporting air flow hole 303 is provided with a supporting air inlet hole 304 communicated with the supporting air flow hole 303 on the sliding block, the supporting air inlet holes 304 are connected with air supply equipment through pipelines, and the air supply equipment is an air compressor generally;
the left side and the right side of the bottom end surface of the supporting main slider 301 and the left end surface of the supporting side slider 302 are both provided with supporting adsorption grooves 305, the supporting adsorption grooves 305 are provided with supporting air outlets 306, the supporting main slider 301 and the supporting side slider 302 are provided with supporting air outlets 307 communicated with the supporting air outlets 306, and the supporting air outlets 307 are connected with a vacuum generator through pipelines;
that is, the main supporting slider 301 and the side supporting slider 302 in the supporting platform 3 form an air-floating slider to realize the air-floating sliding connection with the horizontal guide rail 1, as follows:
when the air-assisted lifting device is used, air enters between matching surfaces of each sliding block and the horizontal guide rail 1 through the support air inlet holes 304 and the support air flow holes 303 through external air supply equipment, so that air films are formed between the bottom end surface of the support main sliding block 301 and the top end surface of the horizontal guide rail 1 and between the left end surface of the support side sliding block 302 and the left end surface of the horizontal sliding chute 101, and the support platform 3 can be lifted by the air films; meanwhile, the gas in the supporting adsorption groove 305 is sucked away along the supporting air outlet 306 and the supporting exhaust hole 307 under the action of the external vacuum generator to form vacuum, each sliding block is sucked to the corresponding matching surface due to the vacuum adsorption effect, meanwhile, the gas at each matching surface can be sprayed out from the side surface of the sliding block and the position with the cutter groove, and after the air entering and discharged from each matching surface reaches the required balance, the thickness of the air film between each end surface is not changed any more, so that the frictionless contact between the supporting platform 3 and the horizontal guide rail 1 is realized.
Preferably, the left end and the right end of the main supporting slider 301 and the left end surface of the side supporting slider 302 are provided with supporting uniform distribution grooves 308 communicated with the supporting airflow holes 303; the gas ejected from the supporting gas flow holes 304 achieves the function of distributing gas flow through the supporting and distributing groove 308, so that the gas is quickly and uniformly distributed on the whole gas floating surface.
Preferably, as shown in fig. 5 to 10, the supporting mechanism includes a work bench 309, a bottom of the work bench 309 is fixedly connected to a rotating plate 310, and the rotating plate 310 is rotatably connected to a bottom plate of the adjusting base 311; a transition plate 312 is fixedly arranged at the bottom of the adjusting seat 311, and the transition plate 312 is in sliding connection with an adapter plate 313 at the bottom in the left-right direction; a fine adjustment screw rod 322 is rotatably connected to the right end face of the transition plate 312, the fine adjustment screw rod 322 is in threaded connection with the right side wall of the adjusting seat 311, and a fine adjustment handle 323 is arranged at the right end of the fine adjustment screw rod 322; namely, the fine adjustment screw 323 is screwed leftwards or rightwards by rotating the fine adjustment handle 323, so that the transition plate 312 is driven to slide leftwards or rightwards;
a lifting screw 314 which downwards penetrates through the main sliding table 301 is fixedly arranged at the bottom of the adapter plate 313, and the inner wall surface of the lifting screw 314 is in threaded connection with a lifting screw 315; the bottom of the lifting screw 315 is coaxially and fixedly connected with a driven wheel 316, the driven wheel 316 is connected with a driving wheel 317 through a conveyor belt, and the driving wheel 317 is coaxially and fixedly connected with a rotating shaft of a lifting motor 318; the lifting motor 318 is arranged on the main support plate 319, the front end and the rear end of the main support plate 319 are vertically and fixedly connected with the side support plate 320, and the top end of the side support plate 320 is fixedly connected with the main support slider 301; the front end and the rear end of the bottom of the adapter plate 313 are symmetrically provided with guide rods 321, and the guide rods 321 are downwards connected with the main supporting slide block 301 and the main supporting plate 319 in a sliding manner; that is, the lifting motor 318 rotates to drive the driving wheel 317 to rotate, and further drives the driven wheel 316 to rotate, so as to cause the lifting screw 315 to rotate, and when the lifting screw 315 is matched with the lifting screw 314 and the limiting guide of the guide rod 321 is downward, the adapter plate 313 realizes the up-and-down lifting movement, and further drives the working table plate 309 to realize the lifting movement.
Preferably, fine adjustment sliding blocks 324 are symmetrically arranged at the front end and the rear end of the transition plate 312, and a fine adjustment guide rail 325 in sliding fit with the fine adjustment sliding blocks 324 is arranged on the adapter plate 313.
Preferably, as shown in fig. 9-10, a rotation adjusting block 326 is disposed at a front end of the rotation plate 310, an adjusting threaded hole is disposed on the rotation adjusting block 326, a rotation adjusting screw 327 is disposed in the adjusting threaded hole, a baffle 329 fixedly connected to the bottom of the adjusting seat 311 is disposed at a left end of the rotation adjusting block 326, and a left end of the rotation adjusting screw 327 is hinged to the baffle 329; the right end of the rotary adjusting screw 327 passes through the right end face of the adjusting seat 311, and the right end face of the adjusting seat 311 is provided with a strip-shaped hole 328 for the rotary adjusting screw to move;
the rotation of the rotating adjusting screw 327 is realized by the threaded fit between the rotating adjusting screw 327 and the rotating adjusting block 326, the hinged fit between the end of the rotating adjusting screw 327 and the baffle 329, and the rotating fit between the rotating plate 310 and the bottom of the adjusting seat 311.
Preferably, as shown in fig. 3-4, the static clamping seat 2 includes a static shaft horizontal plate 201 fixedly connected to the horizontal guide rail 1, a static shaft vertical plate 202 is fixedly disposed at an upper portion of the static shaft horizontal plate 201, a static shaft mounting block 203 is fixedly disposed at a top portion of the static shaft vertical plate 202, and a static shaft through hole 204 extending in a front-back direction of the horizontal guide rail 1 and used for mounting the static shaft 5 is disposed on the static shaft mounting block 203; the side surface of the static shaft mounting block 203 is provided with a threaded hole penetrating through to a static shaft through hole 204, a static shaft clamping bolt 205 is arranged in the threaded hole, and the end part of the static shaft clamping bolt 205 is provided with a static shaft clamping block 206 used for clamping the static shaft 5.
Preferably, as shown in fig. 13 to 14, the static shaft 5 includes a static shaft sleeve 501, and a sleeve shaft 502 is disposed in the static shaft sleeve 501; an adjusting nut 503 is fixedly arranged at the front end of the static shaft sleeve 501, an adjusting bolt 504 is arranged in the adjusting nut 503, and the end part of the adjusting bolt 504 is in contact connection with the sleeve shaft;
a cap measuring shaft mounting seat 505 is fixedly arranged at the rear end of the static measuring shaft sleeve 501, and a cap measuring shaft 506 is arranged in the middle of the cap measuring shaft mounting seat 505 in a sliding manner; a cap measuring shaft hole 507 is formed in the rear end of the sleeve shaft 502, and the end of the cap measuring shaft 506 is hinged with the cap measuring shaft hole 507;
a return spring 508 is sleeved on the measuring cap shaft 506 between the end part of the measuring cap shaft hole 507 and the measuring cap shaft mounting seat 505;
when the adjusting bolt 504 is screwed backwards, the adjusting bolt 504 drives the sleeve shaft 501 to move backwards, so that the cap measuring shaft 506 is driven to move rightwards, the cap measuring arranged on the cap measuring shaft 506 can be driven to move backwards, and the effect of adjusting the position of the cap measuring is achieved; when the reset is needed, the adjusting bolt 504 is rotated reversely, and under the reset pressure of the reset spring 508, the front end of the sleeve shaft 502 can always contact with the end part of the adjusting bolt 504, so that the sleeve shaft 502 can move forwards along with the adjusting bolt, and meanwhile, the sleeve shaft 502 can drive the measuring cap shaft 506 to move forwards, so that the reset is realized.
Preferably, the horizontal guide rail 1 between the supporting platform 3 and the movable clamping seat 4 is connected with two auxiliary brackets 8 which support the measuring tool to be measured in a sliding manner; when the measuring tool to be measured is longer, the auxiliary support 8 can be added on the horizontal guide rail 1, so that the sufficient supporting function is ensured.
The grating length measuring device has the following specific implementation mode:
(1) appropriate measuring caps are arranged on the static measuring shaft 5 and the dynamic measuring shaft 6, and then the dynamic measuring shaft 6 is driven by the brake clamping seat 4 to move forwards along the horizontal guide rail 1 until the measuring caps on the dynamic measuring shaft 6 are contacted with the measuring caps on the static measuring shaft 5 and then stop moving; at this time, the displacement sensor composed of the scale grating 7 and the grating reading head 8 detects that the displacement is L0；
(2) The control brake clamping seat 4 drives the dynamic measuring shaft 6 to return to the initial position backwards along the horizontal guide rail 1;
(3) then, the height of the supporting platform 3 is adjusted, the measuring tool to be measured is placed on the supporting platform 3, and the central axis of the measuring tool to be measured is collinear with the central axes of the dynamic measuring shaft 6 and the static measuring shaft 5;
(4) controlling the brake clamping seat 4 to drive the dynamic measuring shaft 6 to move forwards along the horizontal guide rail 1 until two ends of the measuring tool to be measured are respectively contacted with the measuring cap on the dynamic measuring shaft 6 and the measuring cap on the static measuring shaft 5, and stopping moving; at this time, the displacement sensor composed of the scale grating 7 and the grating reading head 8 detects that the displacement is L1；
(5) Calculating the length of the measuring tool to be measuredDegree, the length of the measuring tool to be measured is L ═ L0-L1。
The grating length measuring device indirectly measures the length of the measuring tool to be measured through the displacement sensor consisting of the scale grating and the grating reading head, human eyes are not needed for reading, and the measuring accuracy and precision are high;
according to the grating length measuring device, air films with stable thickness can be formed between the sliding blocks of the movable clamping seat and the matching surfaces of the horizontal guide rail, so that frictionless contact between the movable clamping seat and the horizontal guide rail is realized, and mechanical abrasion can be reduced due to frictionless contact, so that the service life is prolonged; on the other hand, the movable clamping seat can realize high-stability linear motion on the horizontal guide rail, so that a guarantee is provided for accurate measurement of displacement of a displacement sensor consisting of the scale grating and the grating reading head, and the precision of length measurement of the measuring tool to be measured can be further ensured.
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 (10)
1. A grating length measuring device is characterized by comprising a horizontal guide rail;
the front end of the horizontal guide rail is fixedly connected with a static clamping seat, and a static measuring shaft used for mounting a measuring cap is arranged on the static clamping seat;
a movable clamping seat is connected in a horizontal sliding groove in the upper surface of the horizontal guide rail in a sliding manner, and a movable measuring shaft for mounting a measuring cap is arranged on the movable clamping seat;
the movable clamping seat comprises a movable clamping seat sliding block mechanism at the bottom and a movable shaft measuring support at the upper part; the movable clamping seat sliding block mechanism comprises a first main sliding block matched with the top end face of the horizontal guide rail, a first side sliding block matched with the left side wall of the horizontal sliding groove is arranged at the bottom of the first main sliding block, and a first auxiliary sliding block matched with the right side wall of the horizontal sliding groove is arranged on the right end face of the first side sliding block;
a plurality of first air flow holes are formed in the left side and the right side of the bottom end face of the first main sliding block, the left end face of the first side sliding block and the right end face of the first auxiliary sliding block; each sliding block provided with a first air hole is provided with a first air inlet communicated with the first air hole on the sliding block, and the first air inlet is connected with air supply equipment through a pipeline;
the left side and the right side of the bottom end surface of the first main sliding block and the left end surface of the first side sliding block are respectively provided with a first adsorption groove, the first adsorption grooves are provided with a first air outlet, the first main sliding block and the first side sliding block are provided with a first air outlet communicated with the first air outlet, and the first air outlet is connected with a vacuum generator through a pipeline;
a supporting platform used for supporting a measuring tool to be measured is arranged between the static clamping seat and the dynamic clamping seat, and the supporting platform is in sliding connection with a horizontal sliding groove in the upper surface of the horizontal guide rail;
the left side wall of the horizontal sliding groove is provided with a scale grating, and the bottom of the first main sliding block is provided with a grating reading head matched with the scale grating.
2. The grating length measuring device as claimed in claim 1, wherein the left and right ends of the first main sliding block and the left end surface of the first side sliding block are provided with first uniform distribution grooves communicated with the first air flow holes.
3. The grating length measuring device of claim 1, wherein the movable measuring shaft bracket comprises a movable measuring shaft horizontal plate fixedly connected with the first main sliding block, a movable measuring shaft vertical plate is fixedly arranged at the upper part of the movable measuring shaft horizontal plate, a movable measuring shaft mounting block is fixedly arranged at the top of the movable measuring shaft vertical plate, and a movable measuring shaft through hole for mounting the movable measuring shaft is formed in the movable measuring shaft mounting block and extends along the front-back direction of the horizontal guide rail; the side of the dynamic measuring shaft mounting block is provided with a threaded hole penetrating through the dynamic measuring shaft through hole, a dynamic measuring shaft clamping bolt is arranged in the threaded hole, and the end part of the dynamic measuring shaft clamping bolt is provided with a dynamic measuring shaft clamping block used for clamping a dynamic measuring shaft.
4. The grating length measuring device of claim 1, wherein the supporting platform comprises a bottom supporting slide block mechanism and an upper supporting mechanism; the supporting slide block mechanism comprises a supporting main slide block matched with the top end face of the horizontal guide rail, and a supporting side slide block matched with the left side wall of the horizontal sliding groove is arranged at the bottom of the supporting main slide block;
the left side and the right side of the bottom end face of the supporting main sliding block and the left end face of the supporting side sliding block are respectively provided with a plurality of supporting airflow holes; each sliding block provided with a supporting airflow hole is provided with a supporting air inlet hole communicated with the supporting airflow hole on the sliding block, and the supporting air inlet hole is connected with air supply equipment through a pipeline;
the left and right sides of the bottom end face of the main supporting slider and the left end face of the side supporting slider are both provided with supporting adsorption grooves, the supporting adsorption grooves are provided with supporting air outlets, supporting main supporting slider and supporting side slider are provided with supporting exhaust holes communicated with the supporting air outlets, and the supporting exhaust holes are connected with a vacuum generator through pipelines.
5. The grating length measuring device of claim 4, wherein the left and right ends of the main supporting slider and the left end surface of the side supporting slider are provided with supporting uniform distribution grooves communicated with the supporting airflow holes.
6. The grating length measuring device of claim 4, wherein the supporting mechanism comprises a worktable plate, the bottom of the worktable plate is fixedly connected with a rotating plate, and the rotating plate is rotatably connected with a bottom plate of the adjusting seat; a transition plate is fixedly arranged at the bottom of the adjusting seat, and the transition plate is in sliding connection with the adapter plate at the bottom in the left-right direction; a fine adjustment screw is rotatably connected to the right end face of the transition plate, the fine adjustment screw is in threaded connection with the right side wall of the adjusting seat, and a fine adjustment handle is arranged at the right end of the fine adjustment screw;
the bottom of the adapter plate is fixedly provided with a lifting nut which downwards penetrates through the supporting main sliding table, and the inner wall surface of the lifting nut is in threaded connection with a lifting screw rod; the bottom of the lifting screw is coaxially and fixedly connected with a driven wheel, the driven wheel is connected with a driving wheel through a conveyor belt, and the driving wheel is coaxially and fixedly connected with a rotating shaft of a lifting motor; the lifting motor is arranged on the main supporting plate, the front end and the rear end of the main supporting plate are vertically and fixedly connected with side supporting plates, and the top ends of the side supporting plates are fixedly connected with the main supporting sliding blocks; the front end and the rear end of the bottom of the adapter plate are symmetrically provided with guide rods, and the guide rods are connected with the main supporting slide block and the main supporting plate in a sliding mode downwards.
7. The grating length measuring device as claimed in claim 6, wherein the transition plate is symmetrically provided with fine adjustment sliders at front and rear ends thereof, and the adapter plate is provided with fine adjustment guide rails slidably engaged with the fine adjustment sliders.
8. The grating length measuring device of claim 7, wherein the front end of the rotating plate is provided with a rotation adjusting block, the rotation adjusting block is provided with an adjusting threaded hole, a rotation adjusting screw rod is arranged in the adjusting threaded hole, the left end of the rotation adjusting block is provided with a baffle fixedly connected with the bottom of the adjusting seat, and the left end of the rotation adjusting screw rod is hinged with the baffle; the right end of the rotary adjusting screw rod penetrates through the right end face of the adjusting seat, and a strip-shaped hole for the rotary adjusting screw rod to move is formed in the right end face of the adjusting seat.
9. The grating length measuring device of claim 1, wherein the static clamping seat comprises a static shaft horizontal plate fixedly connected with a horizontal guide rail, a static shaft vertical plate is fixedly arranged at the upper part of the static shaft horizontal plate, a static shaft mounting block is fixedly arranged at the top of the static shaft vertical plate, and a static shaft through hole for mounting a static shaft is formed in the static shaft mounting block and extends along the front-back direction of the horizontal guide rail; the side of the static shaft mounting block is provided with a threaded hole penetrating through the static shaft through hole, a static shaft clamping bolt is arranged in the threaded hole, and the end part of the static shaft clamping bolt is provided with a static shaft clamping block used for clamping a static shaft.
10. The grating length measuring device of claim 1, wherein the static shaft comprises a static shaft sleeve, and a sleeve shaft is arranged in the static shaft sleeve; an adjusting nut is fixedly arranged at the front end of the static measurement shaft sleeve, an adjusting bolt is arranged in the adjusting nut, and the end part of the adjusting bolt is in contact connection with the sleeve shaft;
a cap measuring shaft mounting seat is fixedly arranged at the rear end of the static measuring shaft sleeve, and a cap measuring shaft is arranged in the middle of the cap measuring shaft mounting seat in a sliding manner; the rear end of the sleeve shaft is provided with a measuring cap shaft hole, and the end part of the measuring cap shaft is hinged with the measuring cap shaft hole;
and a reset spring is sleeved on the measuring cap shaft between the end part of the measuring cap shaft hole and the measuring cap shaft mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212411.1U CN210268535U (en) | 2019-07-30 | 2019-07-30 | Grating length measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212411.1U CN210268535U (en) | 2019-07-30 | 2019-07-30 | Grating length measuring device |
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| CN210268535U true CN210268535U (en) | 2020-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812399A (en) * | 2022-04-11 | 2022-07-29 | 合肥江丰电子材料有限公司 | Automatic device for measuring length of planar target assembly and using method thereof |
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2019
- 2019-07-30 CN CN201921212411.1U patent/CN210268535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812399A (en) * | 2022-04-11 | 2022-07-29 | 合肥江丰电子材料有限公司 | Automatic device for measuring length of planar target assembly and using method thereof |
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