CN112254601B - A universal caliper calibration device - Google Patents
A universal caliper calibration device Download PDFInfo
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- CN112254601B CN112254601B CN202011029257.1A CN202011029257A CN112254601B CN 112254601 B CN112254601 B CN 112254601B CN 202011029257 A CN202011029257 A CN 202011029257A CN 112254601 B CN112254601 B CN 112254601B
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- storage rack
- caliper
- clamping part
- adjustable
- calibration device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/20—Slide gauges
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a universal caliper calibration device, which belongs to the technical field of geometric quantity calibration and comprises a workbench, wherein a vernier clamping mechanism is arranged on the workbench, the vernier clamping mechanism comprises a vertical bracket and a transverse storage rack which is connected with the vertical bracket in a sliding manner and is lifted vertically, at least two clamping parts for fixing calipers are connected to the transverse storage rack in a sliding manner, and the clamping parts are fixedly connected with the transverse storage rack in a locking manner through a locking mechanism. According to the invention, the clamping part of the fixed caliper is arranged on the liftable transverse storage bracket, so that the caliper can calibrate in a lifting control mode after only fixing work, on one hand, the problem of high labor intensity of manual calibration is avoided, and on the other hand, the problem of large measurement error caused by shaking and the like easily generated in the alignment process of the caliper and the gauge block during manual measurement is avoided.
Description
Technical Field
The invention relates to the technical field of geometric quantity calibration, in particular to a universal caliper calibration device.
Background
The universal callipers (callipers for short) are measuring tools for measuring length, inner diameter, outer diameter and depth. The vernier caliper consists of a main scale and a vernier which is attached to the main scale and can slide.
The universal caliper is one of the most widely used and important measuring tools in the mechanical industry, is widely applied to various fields of national economy such as manufacturing industry, installation industry, scientific research institutes and the like, and is a necessary tool for workers and inspectors in a processing workshop. The enterprises or metering departments that produce these universal calipers need to perform performance verification on the indication errors of these universal calipers according to the rules established by the relevant departments. The traditional verification method is completed manually, has the defects of large workload, low efficiency, low precision and the like, and is affected by human errors to cause the final verification result to be inaccurate. Whether it is used correctly will directly affect the qualification rate of the inspected product or even the economic benefit of the enterprise.
The main scale and vernier of the caliper are respectively provided with two movable measuring jaws, namely an inner measuring jaw and an outer measuring jaw, wherein the inner measuring jaw is used for measuring the inner diameter, the outer measuring jaw is used for measuring the length and the outer diameter, and the depth scale is connected with the vernier and can measure the depth of the groove and the cylinder. The common general calipers can be divided into 4 kinds of general calipers according to the precision, namely 0.10 millimeter, 0.05 millimeter, 0.02 millimeter and 0.01 millimeter.
The whole calibration process of the calipers and the gauge blocks by the existing calibration mechanism is completed by pure manual operation, and has the following defects that 1, the supporting calibration is carried out by adopting equal-height blocks, the operation difficulty is high, 2, the calipers and the gauge blocks are easy to generate displacement and relative displacement to influence the measurement result in the calibration process of calibration staff, 3, the staff capacity requirement is high, one person cannot operate in the calibration process, thus wasting human resources, 4, the position and the direction of the gauge blocks are adjusted by filling a semicircular block below the gauge blocks for a large-range caliper, the working face of the gauge blocks and the working face of the calipers are aligned, the labor intensity is high, and 5, the calibration efficiency is low and inconvenience is caused.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a universal caliper calibration device which is convenient to operate, small in error and high in calibration efficiency.
The invention provides a general caliper calibration device which comprises a workbench, wherein a vernier clamping mechanism is arranged on the workbench, the vernier clamping mechanism comprises a vertical bracket and a transverse storage rack which is connected with the vertical bracket in a sliding manner and is lifted vertically, at least two clamping parts for fixing calipers are connected to the transverse storage rack in a sliding manner, and the clamping parts are fixedly connected with the transverse storage rack in a locking manner through a locking mechanism.
The clamping part comprises a fixed clamping part and/or an adjustable clamping part, the fixed clamping part comprises a fixed supporting rod connecting block which is connected with the transverse storage rack in a sliding mode and a fixed caliper supporting rod which is arranged on the fixed supporting rod connecting block, the adjustable clamping part comprises an adjustable supporting rod connecting block which is connected with the transverse storage rack in a sliding mode and a fine adjustment driving part which is arranged on the adjustable supporting rod connecting block, and the lower portion of the fine adjustment driving part is connected with the adjustable caliper supporting rod.
Preferably, when the fixed clamping part and the adjustable clamping part are simultaneously arranged on the transverse storage rack, the fixed clamping part is positioned at the end part of the transverse storage rack, and the adjustable clamping part is positioned at the middle part of the transverse storage rack.
Preferably, the fine adjustment driving part comprises a fine adjustment rod and an adjustment rod which are sequentially connected from top to bottom, the fine adjustment rod is in threaded connection with the adjustable support rod connecting block, and the lower end of the adjustment rod is connected with the adjustable caliper support rod.
Preferably, the adjustable clamping part is provided with a limit screw, the lower end of the adjustable support rod connecting block is provided with a slotted hole, one end of the limit screw is arranged at the lower end of the fine adjustment driving part, and the other end of the limit screw is at least positioned in the slotted hole.
Preferably, the transverse storage rack is connected with the clamping part through a sliding connection structure, the sliding connection structure comprises a sliding block and a sliding groove which are matched for use, and a locking screw hole for locking the sliding block and allowing a locking bolt of the sliding block to pass through is formed in the sliding block or the sliding groove.
Preferably, the horizontal storage rack is connected with the vertical bracket through a vertical lifting mechanism, the vertical lifting mechanism comprises a lifting driving motor, a rotating screw rod and a screw nut which are sequentially connected, the screw nut is fixedly connected with the horizontal storage rack, and the rotating screw rod is rotatably arranged on the vertical bracket.
Preferably, the number of the vertical brackets is at least 2, the transverse storage rack is connected with each vertical bracket through a corresponding vertical lifting mechanism, and the adjacent vertical lifting mechanisms are connected through synchronous belts.
Preferably, a proximity switch is arranged on the vertical bracket.
Preferably, the workbench is further provided with a gauge block adjusting assembly, the gauge block adjusting assembly comprises a gauge block table with one end hinged to the workbench and a cam mechanism rotatably arranged on the workbench, the cam mechanism comprises a rotating rod, a threaded block, a rocker arm and a rotating shaft which are sequentially connected, the rotating rod is connected with the workbench in a rotating mode, the rotating rod is connected with the threaded block in a threaded mode, the threaded block is hinged to the rocker arm, and a cam located below the other end of the gauge block table is arranged on the rotating shaft.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the universal caliper calibration device, the clamping parts of the fixed caliper are arranged on the liftable transverse storage support, so that the caliper can calibrate in a lifting control mode after only fixing work is needed, on one hand, the problem of high labor intensity of manual calibration is avoided, on the other hand, the problem of large measurement error caused by shaking and the like easily generated in the alignment process of the caliper and the gauge block during manual measurement is avoided, and further, by arranging at least two clamping parts on the transverse storage support, the head part of the caliper is clamped, the tail part of the caliper is supported and positioned, the problem that the head part of the caliper is stressed and bent due to shaking and the like of the tail part is avoided, and further, the measurement accuracy is guaranteed.
2. According to the universal caliper calibration device, the adjustable clamping part is arranged, so that the head position or the tail position of the caliper can be finely adjusted, and the problem that the caliper cannot be effectively fixed due to manufacturing errors of the clamping part is avoided;
3. according to the universal caliper calibration device, the proximity switch is arranged on the vertical bracket, so that the downward movement of the transverse storage rack can be effectively controlled, and the problem that the caliper is damaged due to collision caused by overlarge downward movement length is avoided.
4. According to the universal caliper calibration device, the gauge block adjusting assembly is arranged on the workbench, so that the gauge block is convenient to install and fine tune, and the calibration efficiency is improved.
5. According to the universal caliper calibration device, one person can operate the whole calibration process, so that labor is saved, and the calibration efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a general caliper calibration device of the present invention;
FIG. 2 is a schematic view of the bracket and vertical lifting mechanism of FIG. 1;
FIG. 3 is a schematic view of the lateral storage rack of FIG. 1;
FIG. 4 is a schematic view of the gauge block adjusting assembly of FIG. 1;
FIG. 5 is a schematic view of the structure of the fixing clamp in FIG. 1;
FIG. 6 is a schematic view of the adjustable clamping portion of FIG. 1;
FIG. 7 is a schematic view of the cam mechanism of FIG. 4;
The device comprises a workbench, a vertical bracket, a transverse storage rack, a fixed clamping part, an adjustable clamping part, a fixed supporting rod connecting block, a fixed caliper supporting rod, an adjustable supporting rod connecting block, an adjustable caliper supporting rod, a fine adjustment rod, an adjusting rod, a limit screw, a sliding block, a sliding groove, a vertical lifting mechanism, a lifting driving motor, a rotating screw rod, a screw rod nut, a proximity switch, a gauge block adjusting assembly, a gauge block table, a rotating rod, a screw block, a rocker arm, a rotating shaft and a cam.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to overcome the defects and shortcomings of the prior art, and provides a universal caliper calibration device which is convenient to operate, small in error and high in calibration efficiency.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-7, the invention provides a universal caliper calibration device, which comprises a workbench 1, wherein a vernier clamping mechanism is arranged on the workbench 1, the vernier clamping mechanism comprises a vertical bracket 2 and a transverse storage rack 3 which is in sliding connection with the vertical bracket 2 and is vertically lifted, at least two clamping parts for fixing calipers are in sliding connection with the transverse storage rack 3, and the clamping parts are in locking and fixed connection with the transverse storage rack 3 through a locking mechanism. The workbench 1 can be of a flat plate structure or a structure with a bracket, preferably a hollow structure, the number of the vertical brackets 2 and the intervals among the vertical brackets are determined according to the length of the transverse storage rack 3, the transverse storage rack 3 can only be stably supported, lifting modes of the transverse storage rack 3 can be various, the workbench can be of a telescopic cylinder, a telescopic cylinder and other structures, the workbench can be of a rack, a gear and other structures, the workbench can also be of a lead screw structure with better stability and higher adjustment precision, the lifting process can be manually controlled or electrically controlled, when the electric automatic control is performed, an electric control box is needed to be arranged, the working process is that a gauge block is placed on the workbench 1, then fixed on a clamping part, then the caliper moves up and down through control, so that the gauge block moves towards the gauge block, and then calibration work is completed according to the caliper rule, the technical scheme adopts a mode that the clamping part of the fixed caliper is arranged on the liftable transverse storage rack, the caliper can only need to be controlled, the lifting mode of the caliper is required to be controlled, the caliper is required to be calibrated, and the head part is not required to be adjusted, and the problem of the measurement is avoided, and the problem of the fact that the head part is not to be manually aligned is solved, and the problem of the measurement is avoided is solved, and the problem of the head part is not to be manually aligned, and the problem is solved, and the problem of the measurement of the head part is not needs to be manually, and the measurement of the head part is at least the head part is easy to be subjected to the measurement.
The clamping part comprises a fixed clamping part 4 and/or an adjustable clamping part 5, wherein the fixed clamping part 4 comprises a fixed supporting rod connecting block 6 which is in sliding connection with the transverse storage rack 3 and a fixed caliper supporting rod 7 which is arranged on the fixed supporting rod connecting block 6, the adjustable clamping part 5 comprises an adjustable supporting rod connecting block 8 which is in sliding connection with the transverse storage rack 3 and a fine adjustment driving part which is arranged on the adjustable supporting rod connecting block 8, and the lower part of the fine adjustment driving part is connected with an adjustable caliper supporting rod 9. The fixed clamping part 4 and the adjustable clamping part 5 can be arranged at the same time, and the fixed clamping part 4 and the adjustable clamping part 5 can be arranged at the same time, further, when the fixed clamping part 4 and the adjustable clamping part 5 are arranged on the transverse storage rack 3 at the same time, the fixed clamping part 4 is positioned at the end part of the transverse storage rack 3, the adjustable clamping part 5 is positioned at the middle part of the transverse storage rack 3, both the fixed caliper support rod 7 and the adjustable caliper support rod 9 are provided with clamping areas with a plurality of diameters so as to facilitate effective clamping of the caliper head, the structure of the fine adjustment driving part is various, the fine adjustment driving part can be a telescopic cylinder or a manual threaded rod, for example, the fine adjustment driving part comprises a fine adjustment rod 10 and an adjusting rod 11 which are sequentially connected from top to bottom, the lower end of the adjusting rod 11 is connected with the adjustable caliper support rod 9 by threads, when the fine adjustment rod 10 is rotated, the adjusting rod 11 and the adjustable caliper rod which is vertically connected with the adjusting rod 11 are driven to perform fine adjustment, and the fine adjustment is arranged at the position of the adjustable clamping part 5 so that the position of the caliper head can not be clamped by the fine adjustment driving part is manufactured, and the problem of the fine adjustment driving part is prevented from being caused by the fact that the fine adjustment of the clamping part is arranged at the position of the head, and the clamping part can be clamped by the position of the clamping part is not clamped by the position, and the clamping part is preferably arranged.
In order to limit the fine adjustment displacement and avoid the problem of overlarge adjustment range, the adjustable clamping part 5 is provided with the limit screw 12, the lower end of the adjustable supporting rod connecting block 8 is provided with the oblong hole, one end of the limit screw 12 is arranged at the lower end of the fine adjustment driving part, the other end of the limit screw 12 is at least positioned in the oblong hole, namely, the adjustment range can only be the length of the oblong hole due to the limit screw 12, the installation mode of the limit screw 12 is various, one end of the limit screw 12 can be directly connected with the adjustment rod 11 through detachable threads, and for convenience in operation, the other end of the limit screw 12 can also be provided with threaded holes on the adjustment rod 11 and the adjustable caliper supporting rod 9, so that the technical effect that the other end of the limit screw 12 is at least positioned in the oblong hole is realized after the other end of the limit screw 12 directly passes through the adjustment rod 11 and the adjustable caliper supporting rod 9.
In order to realize the locking and fixed connection of the clamping part and the transverse storage rack 3 through the locking mechanism, the transverse storage rack 3 and the clamping part are connected through the sliding connection structure, the sliding connection structure comprises a sliding block 13 and a sliding groove 14 which are matched for use, a locking screw hole for allowing a locking bolt of the sliding block 13 to pass through is formed in the sliding block 13 or the sliding groove 14, namely, after the position of the clamping part is adjusted, locking work is carried out through the locking bolt or other similar structures.
In order to realize lifting operation of the transverse storage rack 3, the transverse storage rack 3 is connected with the vertical bracket 2 through the vertical lifting mechanism 15, the vertical lifting mechanism 15 comprises a lifting driving motor 16, a rotating screw rod 17 and a screw rod nut 18 which are sequentially connected, the screw rod nut 18 is fixedly connected with the transverse storage rack 3, and the rotating screw rod is rotatably arranged on the vertical bracket 2.
In order to ensure the motion stability of the transverse storage rack 3, at least 2 vertical brackets 2 are arranged, the transverse storage rack 3 is connected with each vertical bracket 2 through corresponding vertical lifting mechanisms 15, the adjacent vertical lifting mechanisms 15 are connected through synchronous belts, and meanwhile, in order to ensure the synchronism, the adjacent vertical lifting mechanisms 15 are connected through synchronous belts, and the concrete structure is shown in fig. 2.
The proximity switch 19 is arranged on the vertical bracket 2, and the proximity switch 19 is an existing component which can be electrically connected with the electric cabinet, so that the downward movement of the transverse storage rack 3 can be effectively controlled, and the problem of damage to the caliper caused by collision due to the overlarge downward movement length is avoided.
The workbench 1 is further provided with a gauge block adjusting assembly 20, namely the gauge block adjusting assembly 20 is arranged on the workbench 1, so that the gauge block is convenient to install and finely adjust, and the calibration efficiency is improved, wherein the gauge block adjusting assembly 20 comprises a gauge block table 21 with one end hinged with the workbench 1 and a cam mechanism rotatably arranged on the workbench 1, the cam mechanism comprises a rotating rod 22, a thread block 23, a rocker arm 24 and a rotating shaft 25 which are sequentially connected, the rotating rod 22 is in rotary connection with the workbench 1, the rotating rod 22 is in threaded connection with the thread block 23, the thread block 23 is hinged with the rocker arm 24, the rotating shaft 25 is provided with a cam 26 positioned below the other end of the gauge block table 21, the working process is to rotate the rotating rod 22, the rotating rod 22 idles relative to the workbench 1 (the idling principle is the prior art, such as an annular cavity is arranged to axially move the rotating rod 22 or an axially limit key is installed), the rotating rod 24 is driven to vertically swing in the process, and finally the cam 26 on the rotating shaft 25 is driven to rotate in the rotating shaft 25, so that the rotating rod 21 is driven to move upwards and downwards in the process.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided herein to facilitate understanding of the principles and embodiments of the present invention and to provide further advantages and practical applications for those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011029257.1A CN112254601B (en) | 2020-09-27 | 2020-09-27 | A universal caliper calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011029257.1A CN112254601B (en) | 2020-09-27 | 2020-09-27 | A universal caliper calibration device |
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| CN112254601A CN112254601A (en) | 2021-01-22 |
| CN112254601B true CN112254601B (en) | 2025-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011029257.1A Active CN112254601B (en) | 2020-09-27 | 2020-09-27 | A universal caliper calibration device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113137899B (en) * | 2021-03-23 | 2023-05-09 | 广东真正工程检测有限公司 | Positioning callipers for bridge embedded part |
Citations (2)
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|---|---|---|---|---|
| CN209214466U (en) * | 2019-01-14 | 2019-08-06 | 重庆电子工程职业学院 | A new electronic vernier caliper length measuring and calibrating device |
| CN213811999U (en) * | 2020-09-27 | 2021-07-27 | 山东奥升泰检测技术有限公司 | Universal caliper calibrating device |
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| US4291465A (en) * | 1980-02-07 | 1981-09-29 | Hemeyer Arley C | Caliper rule device having extended measurement range |
| DE202005014635U1 (en) * | 2005-09-15 | 2007-02-01 | Jeromin, Johannes | Calibration gauge for calibrating a caliper |
| CN202083309U (en) * | 2011-06-21 | 2011-12-21 | 李建国 | Automatic calibrating apparatus of wide-range general calipers |
| US9631913B2 (en) * | 2013-08-29 | 2017-04-25 | Mitutoyo Corporation | Calibration control device for metrology tools |
| US9568308B2 (en) * | 2013-11-07 | 2017-02-14 | Douglas J. Christiansen | Multi-instrument calibration standard |
| CN204630501U (en) * | 2015-03-26 | 2015-09-09 | 沈阳飞机工业（集团）有限公司 | A kind of special measuring tool examining and determine vernier caliper |
| CN109931831A (en) * | 2019-04-01 | 2019-06-25 | 厦门通测电子有限公司 | A kind of height calipers automatic calibrating instrument |
| CN109974549B (en) * | 2019-04-01 | 2023-09-22 | 厦门通测电子有限公司 | Intelligent calibrating instrument for height caliper |
| CN110345837B (en) * | 2019-08-19 | 2024-02-13 | 河南省计量测试科学研究院 | Comprehensive checking device of wide-range length measuring tool based on laser interference |
| CN211552633U (en) * | 2020-03-10 | 2020-09-22 | 苏州市计量测试院 | Special gauge with constant clamping force for measuring jaw in caliper |
| CN111207646A (en) * | 2020-03-16 | 2020-05-29 | 沈阳飞机工业（集团）有限公司 | Automatic calibrating device for general caliper |
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2020
- 2020-09-27 CN CN202011029257.1A patent/CN112254601B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209214466U (en) * | 2019-01-14 | 2019-08-06 | 重庆电子工程职业学院 | A new electronic vernier caliper length measuring and calibrating device |
| CN213811999U (en) * | 2020-09-27 | 2021-07-27 | 山东奥升泰检测技术有限公司 | Universal caliper calibrating device |
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