Verification device for measuring tool

Abstract

The utility model relates to a calibration device for a measuring tool. The verification device comprises a workbench; the sliding rail assembly is arranged on the working table; the fixing mechanism is arranged on the sliding rail assembly in a sliding manner and is configured to be capable of horizontally fixing the measuring tool; the clamping mechanism is arranged on the sliding rail assembly in a sliding mode, and the clamping mechanism and the fixing mechanism are spaced from each other; and the standard component is configured to be positioned on the same horizontal plane as the measuring tool through the clamping mechanism so as to carry out precision verification on the measuring tool. According to the calibration device, measuring tools (especially large-size measuring tools) of different specifications can be conveniently and horizontally fixed on the workbench through the slidable fixing mechanism, the operation is simple, assistance of multiple persons is not needed, the operation difficulty is reduced, the calibration precision is improved, the calibration requirements of vernier calipers and outside micrometers can be met at the same time, and the calibration efficiency of the vernier calipers and the outside micrometers is improved. And the universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a calibration device for measuring tools. Background Art

[0002] Measuring Tool is the abbreviation of physical measuring tool. It is an instrument with a fixed shape when used, used to reproduce or provide one or more known values ​​for a certain quantity. Common measuring tools include rulers, balances, block gauges, calipers, protractors, etc., among which vernier calipers and outside micrometers are two common precision measuring tools. Vernier calipers are mainly used to measure length, inner and outer diameters, and depth. There are two pairs of movable jaws on its main scale and vernier. The inner measuring jaw is used to measure the inner diameter, and the outer measuring jaw is used to measure the length and outer diameter. The outside micrometer is mainly used to measure the outer diameter of the workpiece. Through the rotation transmission motion, the probe is moved and contacted with the surface of the measured object, and then the stroke of the probe is detected, and then converted into the diameter size of the measured object.

[0003] In order to meet the needs of measuring larger sizes, large-size measuring tools came into being, such as vernier calipers over 1000mm and outside micrometers over 500mm. As the size of the measuring tool increases, its weight increases and its structure changes, making it difficult for inspectors to complete the accuracy calibration of large-size measuring tools independently, and often requires the cooperation of two or more people. This is bound to bring about the problem of uncoordinated operation by multiple people. Once someone operates improperly, it will not only affect the calibration accuracy, but also cause damage to the measuring tool or the measuring personnel.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] In order to solve or improve to a certain extent the technical problem of the inconvenience of precision calibration of large-sized measuring tools in the prior art, the utility model provides a calibration device for measuring tools. The calibration device comprises: a workbench; a slide rail assembly, the slide rail assembly is arranged on the workbench; a fixing mechanism, the fixing mechanism is slidably arranged on the slide rail assembly and is configured to horizontally fix the measuring tool; a clamping mechanism, the clamping mechanism is slidably arranged on the slide rail assembly and is spaced apart from the fixing mechanism; and a standard part, the standard part is configured to be positioned on the same horizontal plane as the measuring tool through the clamping mechanism, so as to perform precision calibration on the measuring tool.

[0006] It can be understood by those skilled in the art that the calibration device for measuring tools of the utility model includes a workbench, a slide rail assembly, a fixing mechanism and a standard part. The workbench provides a suitable operating space for calibrating the measuring tool. The slide rail assembly is arranged on the workbench. The fixing mechanism is slidably arranged on the slide rail assembly and configured to fix the measuring tool horizontally. The clamping mechanism is slidably arranged on the slide rail assembly and is spaced apart from the fixing mechanism. The standard part is positioned on the same horizontal plane as the measuring tool by the clamping mechanism. Therefore, the calibration device of the utility model can conveniently fix measuring tools of different specifications (especially large-sized measuring tools) horizontally on the workbench through the slidable fixing mechanism, and the accuracy of the measuring tool can be accurately calibrated by measuring the size of the standard part. The operation is simple, and no multiple people are required to assist, which reduces the difficulty of operation and also improves the calibration accuracy.

[0007] In the preferred technical solution of the above-mentioned calibration device for measuring tools, the slide rail assembly includes a first slide rail and a second slide rail parallel to each other, wherein the fixing mechanism is slidably arranged on the first slide rail, and the clamping mechanism is slidably arranged on the second slide rail. The fixing mechanism is arranged on the first slide rail, and the clamping mechanism is arranged on the second slide rail parallel to the first slide rail, so that the calibration device can conveniently fix a specific measuring tool (such as a vernier caliper, etc.) and a standard part matched therewith.

[0008] In the preferred technical solution of the calibration device for measuring tools, the fixing mechanism includes a plurality of support plates spaced apart from each other, and the plurality of support plates have support surfaces located on the same horizontal plane and used to support the measuring tools. Through the above arrangement, the measuring tools can be conveniently placed on the support surfaces of the support plates without additional fixing, and the operation is simple and convenient.

[0009] In the preferred technical solution of the calibration device for measuring tools, the clamping mechanism includes a plurality of first clamps spaced apart from each other, each of which is configured to clamp the standard part. The cooperation of the plurality of first clamps can conveniently and firmly clamp the standard part, preventing the standard part from deforming and affecting the calibration accuracy.

[0010] In the preferred technical solution of the calibration device for measuring tools, the calibration device further includes auxiliary parts, which are suitable for being positioned at both ends of the standard part and perpendicular to the standard part; and the clamping mechanism further includes a second clamp arranged on both sides of the plurality of first clamps, and a slot for fixing the standard part and the auxiliary part together is formed on the second clamp. Through the cooperation of the auxiliary part and the standard part, the inner diameter measurement accuracy of the measuring tool (such as a vernier caliper, etc.) can be conveniently verified. In addition, a slot for fixing the standard part and the auxiliary part is provided in the second clamp, which can conveniently fix the standard part and the auxiliary part, so that the two can be flexibly fixed or separated according to actual needs, further simplifying the difficulty of operation.

[0011] In the preferred technical solution of the calibration device for measuring tools, the slide rail assembly includes a single slide rail, wherein the fixing mechanism and the clamping mechanism are both slidably arranged on the slide rail. By arranging both the fixing mechanism and the clamping mechanism on a single slide rail, the calibration device can meet the requirements of fixing a specific measuring tool (such as an outside micrometer, etc.) and a standard part matched therewith.

[0012] In the preferred technical solution of the calibration device for the measuring tool, the fixing mechanism includes two fixing clamps spaced apart from each other, and each of the fixing clamps is configured to clamp the measuring tool; and the clamping mechanism includes a plurality of supporting members arranged between the two fixing clamps and spaced apart from each other. The two fixing clamps spaced apart from each other can securely and stably fix the measuring tool. In addition, the clamping mechanism is configured to include a plurality of supporting members spaced apart from each other between the two fixing clamps, so that the standard part can be conveniently and stably fixed.

[0013] In the preferred technical solution of the calibration device for measuring tools, each of the support members has a V-shaped groove for supporting the standard member; or each of the support members has a support plane for supporting the standard member. The V-shaped groove can conveniently and stably support the columnar standard member; correspondingly, the support plane can conveniently and stably support the long strip standard member to meet the fixing needs of different standard members. In addition, the above-mentioned setting can also simplify the fixing steps of the standard member, ensure that the standard member is evenly stressed without deformation, and ensure the calibration accuracy.

[0014] In the preferred technical solution of the calibration device for measuring tools, the clamping mechanism further includes an adjusting member for adjusting the support member, so that the position of the support member in the vertical direction and the position in the horizontal direction perpendicular to the slide rail are both adjustable. The setting of the adjusting member can conveniently adjust the position of the support member to ensure the calibration accuracy.

[0015] In the preferred technical solution of the calibration device for measuring tools, the calibration device further includes an auxiliary support platform spaced apart from the workbench, and the auxiliary support platform has an auxiliary support surface for supporting the measuring tool. The provision of the auxiliary support platform can further improve the stability of the supporting measuring tool and prevent the measuring tool from being displaced during the calibration process and affecting the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a first embodiment of a calibration device for measuring tools of the utility model;

[0018] Figure 2 It is a structural schematic diagram of an embodiment of the standard parts and auxiliary parts of the calibration device for measuring tools of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a second embodiment of the calibration device for measuring tools of the utility model.

[0020] List of reference numerals:

[0021] 100. Verification device; 110. Workbench; 120. Slide rail assembly; 121. First slide rail; 122. Second slide rail; 130. Fixing mechanism; 131. Support plate; 1311. Support surface; 132. Fixing fixture; 140. Clamping mechanism; 141. First fixture; 142. Second fixture; 1421. Slot; 143. Support member; 144. Adjusting member; 150. Standard member; 160. Auxiliary member; 170. Auxiliary support platform; 171. Auxiliary support surface; 200. Measuring tool; 210. Vernier caliper; 211. Main scale; 212. Measuring claw; 2121. External measuring surface; 2122. Internal measuring surface; 220. Outside micrometer; 221. Scale frame; 222. Measuring anvil; 223. Micrometer screw; 224. Differential cylinder; 225. Force measuring device. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In order to solve or improve to a certain extent the technical problem of inconvenient operation of precision calibration of large-sized measuring tools in the prior art, the utility model provides a calibration device 100 for a measuring tool 200. The calibration device 100 includes: a workbench 110; a slide rail assembly 120, the slide rail assembly 120 is arranged on the workbench 110; a fixing mechanism 130, the fixing mechanism 130 is slidably arranged on the slide rail assembly 120, and is configured to horizontally fix the measuring tool 200; a clamping mechanism 140, the clamping mechanism 140 is slidably arranged on the slide rail assembly 120 and is spaced apart from the fixing mechanism 130; and a standard part 150, the standard part 150 is configured to be positioned on the same horizontal plane as the measuring tool 200 through the clamping mechanism 140, so as to perform precision calibration on the measuring tool 200.

[0026] Figure 1 1 is a schematic diagram of the structure of the first embodiment of the calibration device for measuring tools of the utility model. Figure 1 As shown, in one or more embodiments, the verification device 100 of the utility model includes a workbench 110, a slide rail assembly 120, a fixing mechanism 130, a clamping mechanism 140 and a standard part 150 (see Figure 2 ) and other components, thereby conveniently performing accuracy calibration on a suitable measuring tool 200 (such as a vernier caliper 210).

[0027] Continue to see Figure 1 In one or more embodiments, the workbench 110 adopts a frame structure with horizontal and vertical spacing, so that it has a stable structure, thereby providing a suitable operating space for the calibration of the vernier caliper 210. In one or more embodiments, the workbench 110 is made of a suitable metal material, such as stainless steel, cast iron, etc., so that it has good mechanical properties.

[0028] Continue to see Figure 1 , the slide rail assembly 120 is arranged on the workbench 110. Figure 1 In the orientation shown, the slide rail assembly 120 is arranged on the top of the workbench 110. In one or more embodiments, the slide rail assembly 120 includes a first slide rail 121 and a second slide rail 122 which are parallel to each other. Among them, the first slide rail 121 is arranged on the right side of the workbench 110, and the second slide rail 122 is arranged on the left side of the workbench 110. Alternatively, the positions of the first slide rail 121 and the second slide rail 122 can also be adjusted according to actual needs. The first slide rail 121 and the second slide rail 122 both extend approximately in the front-to-back direction. The first slide rail 121 is used to match with the fixing mechanism 130, so that the fixing mechanism 130 can be slidably fixed on the first slide rail 121. The second slide rail 122 is used to match with the clamping mechanism 140, so that the clamping mechanism 140 can be slidably fixed on the second slide rail 122. In one or more embodiments, the number of the first slide rails 121 is 2. That is, the two first slide rails 121 are arranged on the workbench 110 in parallel with each other. The fixing mechanism 130 can be slidably fixed on the two first slide rails 121 to improve the stability of the fixing mechanism 130. Alternatively, the number of the first slide rails 121 can also be set to other suitable numbers more or less than 2. Correspondingly, the number of the second slide rails 122 can also be set to 1 or more according to actual needs.

[0029] Continue to see Figure 1 In one or more embodiments, the fixing mechanism 130 includes four support plates 131 arranged on the first slide rail 121 at intervals. A slider (not shown) matching the first slide rail 121 is provided at the bottom of each support plate 131, so that the support plate 131 can be slidably fixed on the first slide rail 121. Each support plate 131 has a substantially rectangular support surface 1311. Based on Figure 1 In the orientation shown, the support surface 1311 is the top surface of the support plate 131. In addition, the support surface 1311 of each support plate 131 is located on the same horizontal plane to ensure the flatness of the vernier caliper 210 placed thereon. Alternatively, the number of support plates 131 can also be set to other suitable numbers more or less than 4, such as 3, 5, etc. Alternatively, the shape of the support surface 1311 can also be set to a square, a circle or other suitable shapes.

[0030] Continue to see Figure 1The vernier caliper 210 has a main scale 211 and a pair of measuring jaws 212 arranged on the main scale 211. Each measuring jaw 212 has an outer measuring surface 2121 and an inner measuring surface 2122 opposite to each other. The outer measuring surfaces 2121 on the two measuring jaws 212 are arranged opposite to each other, and the inner measuring surfaces 2122 on the two measuring jaws 212 are arranged opposite to each other. When measuring, the two outer measuring surfaces 2121 are respectively pressed against the standard part 150 or other suitable measured objects to measure their length or outer diameter; the two inner measuring surfaces 2122 are respectively pressed against the standard part 150 or other suitable measured objects to measure their inner diameter.

[0031] Continue to see Figure 1 When fixing the vernier caliper 210, first adjust the positions of the plurality of support plates 131 so that a suitable distance is spaced between adjacent support plates 131. Next, place the main scale 211 of the vernier caliper 210 horizontally on the support surfaces 1311 of the plurality of support plates 131, and point the measuring claw 212 of the vernier caliper 210 toward the second slide rail 122 so as to measure the standard part 150 placed on the second slide rail 122. At the same time, adjust the position of the main scale 211 so that the length direction of the main scale 211 is roughly along the direction of the first slide rail 121 (based on the Figure 1 The direction shown, i.e., the front-to-back direction) is extended to ensure the accuracy of the calibration.

[0032] Continue to see Figure 1 In one or more embodiments, the clamping mechanism 140 includes four first clamps 141 arranged on the second slide rail 122 at intervals. Alternatively, the number of the first clamps 141 may be set to other suitable numbers more or less than four, such as three, five, etc. The specific structure of the first clamp 141 is not limited, as long as it can stably and firmly clamp the standard part 150 (see Figure 2 ) In one or more embodiments, each first fixture 141 includes two L-shaped fixture units (not marked in the figure) facing each other. A slider (not marked in the figure) matching the second slide rail 122 is provided between the two L-shaped fixture units. In addition, the two L-shaped fixture units together form a clamping mouth (not marked in the figure) opening upward. By adjusting the size of the clamping mouth, the standard part 150 placed therein can be firmly constrained in the first fixture 141.

[0033] Continue to see Figure 1 In one or more embodiments, the clamping mechanism 140 further includes second clamps 142 located on both sides of the four first clamps 141. Specifically, based on Figure 1In the orientation shown, two second clamps 142 are respectively arranged at the front and rear sides of the second slide rail 122, and four first clamps 141 are arranged between the two second clamps 142. Each second clamp 142 is slidably arranged on the second slide rail 122. A slot 1421 with an opening toward the first clamp 141 is provided on the second clamp 142. In other words, the openings of the slots 1421 of the two second clamps 142 are arranged opposite to each other. Each slot 1421 can accommodate a standard part 150 and an auxiliary part 160 perpendicular to the standard part 150 (see Figure 2 ), so that the standard component 150 and the auxiliary component 160 can be conveniently connected together.

[0034] Figure 2 1 is a schematic diagram of the structure of an embodiment of the standard part and auxiliary part 1 of the calibration device for measuring tools of the utility model. Figure 2 As shown, in one or more embodiments, the standard part 150 is a gauge block, and the gauge block has a substantially rectangular strip structure. When in use, the standard part 150 is horizontally fixed on the workbench 110 by a plurality of first clamps 141 spaced apart from each other, and the standard part 150 is positioned on a substantially same horizontal plane as the vernier caliper 210. Since the size of the standard part 150 is known, by comparing the measurement result obtained by measuring the standard part 150 with the known size of the standard part 150 by the vernier caliper 210, the measurement accuracy of the outer measuring surface 2121 of the vernier caliper 210 can be verified, thereby ensuring the accuracy of the measurement result. It should be pointed out that the standard part 150 can be set to multiple according to actual needs to meet the calibration needs of vernier calipers 210 of different specifications.

[0035] Continue to see Figure 2 In one or more embodiments, the verification device 100 further includes an auxiliary part 160. The auxiliary parts 160 are respectively arranged at both ends of the standard part 150, and each auxiliary part 160 is perpendicular to the standard part 150. The auxiliary part 160 is a substantially rectangular strip structure. Therefore, the length between the two auxiliary parts 160 is the same as the length L of the entire standard part 150. During assembly, the auxiliary part 160 and the standard part 150 are inserted into the corresponding slot 1421 of the second fixture 142 together, so that the auxiliary part 160 and the standard part 150 can be conveniently connected together, thereby improving the installation efficiency. The provision of the auxiliary part 160 allows the measuring surfaces at both ends of the standard part 150 to extend upward in the vertical direction, so as to conveniently match the inner measuring surface 2122 of the vernier caliper 210, and then the accuracy of the inner measuring surface 2122 of the vernier caliper 210 is verified.

[0036] Figure 3 1 is a schematic diagram of the structure of the second embodiment of the calibration device for measuring tools of the utility model. Figure 3As shown, in one or more embodiments, the calibration device 100 of the utility model includes components such as a workbench 110, a slide rail assembly 120, a fixing mechanism 130, a clamping mechanism 140 and a standard part 150, so as to facilitate the accuracy calibration of a suitable measuring tool 200 (such as an outside micrometer 220).

[0037] Continue to see Figure 3 In one or more embodiments, the slide rail assembly 120 includes a single slide rail. The single slide rail may be a first slide rail 121 located on the right side of the workbench 110. Both the fixing mechanism 130 and the clamping mechanism 140 may be slidably arranged on the slide rail (e.g., the first slide rail 121). In one or more embodiments, the number of the first slide rails 121 is 2. That is, the two first slide rails 121 are arranged parallel to each other on the workbench 110. Therefore, both the fixing mechanism 130 and the clamping mechanism 140 may be slidably fixed on the two first slide rails 121 to improve the stability of the fixing mechanism 130 and the clamping mechanism 140. Alternatively, the number of the first slide rails 121 may also be set to other suitable numbers more or less than 2 according to actual needs.

[0038] Continue to see Figure 3 In one or more embodiments, the fixing mechanism 130 includes two fixing fixtures 132 spaced apart from each other. Each fixing fixture 132 is configured to clamp the outside micrometer 220 respectively. The structure of the fixing fixture 132 is not limited, as long as it can clamp the outside micrometer 220. In one or more embodiments, the fixing mechanism 130 includes a support plate 131, and the fixing fixture 132 is detachably fixed to the support plate 131. Through the above-mentioned arrangement, the versatility of the support plate 131 can be improved to meet the calibration needs of different measuring tools 200 (including vernier calipers 210 and outside micrometers 220).

[0039] See also Figure 3 The outside micrometer 220 includes a roughly semicircular frame 221, an anvil 222 located at one end of the frame 221, and a micrometer screw 223, a differential cylinder 224, and a force measuring device 225 located at the other end of the frame 221. When fixing the outside micrometer 220, first adjust the position of the fixing fixture 132 to match the outside micrometer 220. Then, clamp the sleeve on the outside of the anvil 222 with the fixing fixture 132 located on the front side of the first slide rail 121. Then, clamp the sleeve on the micrometer screw 223 with the fixing fixture 132 located on the rear side of the second slide rail 122. Through the above-mentioned arrangement, the outside micrometer 220 can be conveniently and firmly fixed, while meeting the fixing needs of outside micrometers 220 of different specifications.

[0040] Continue to see Figure 3In one or more embodiments, the calibration device 100 further includes an auxiliary support table 170 spaced apart from the workbench 110. The auxiliary support table 170 has an auxiliary support surface 171 that abuts against the scale frame 221 of the outside micrometer 220 to more stably support the outside micrometer 220. Figure 3 In the orientation shown, the auxiliary support platform 170 is arranged on the left side of the workbench 110 and is located between the two fixing clamps 132. In this way, the fixing clamps 132 and the auxiliary support platform 170 can form a roughly triangular stable structure, which improves the stability of the fixation of the outside micrometer 220. In one or more embodiments, a roller (not shown in the figure) is provided at the bottom of the auxiliary support platform 170 to conveniently and flexibly adjust the position of the auxiliary support platform 170. In one or more embodiments, the position of the auxiliary support surface 171 on the auxiliary support platform 170 in the vertical direction is adjustable, so that by adjusting the position of the auxiliary support surface 171, it is ensured that the outside micrometers 220 of different specifications can extend roughly in the horizontal direction. It should be pointed out that the adjustment method of the auxiliary support surface 171 is not limited, for example, it can be achieved by using a motor to drive a telescopic rod connected to the auxiliary support surface 171.

[0041] Continue to see Figure 3 In one or more embodiments, the clamping mechanism 140 includes two support members 143 arranged between the two fixing clamps 132 and spaced apart from each other. In one or more embodiments, two support plates 131 spaced apart from each other are provided between the two fixing clamps 132, and each support member 143 is detachably arranged on the corresponding support plate 131. Through the above-mentioned arrangement, the versatility of the support plate 131 can be further improved, and the use efficiency of the components can be improved. In one or more embodiments, each support plate 131 has a V-shaped groove (not marked in the figure) opening upward, so that the standard part 150 for calibrating the outside diameter micrometer 220 can be conveniently accommodated in the V-shaped groove. The standard part 150 can be a standard measuring rod having a roughly cylindrical shape. Therefore, the arrangement of the V-shaped groove can not only make the standard measuring rod conveniently fixed on the support member 143 without additional fixing, but also ensure the uniformity of the force on the standard measuring rod, and prevent the standard measuring rod from twisting and deforming to affect the calibration accuracy. In one or more embodiments, each support member 143 has a support plane (not shown in the figure) for supporting the standard member 150. The standard member 150 may be a standard gauge block having a substantially rectangular parallelepiped shape. Therefore, the provision of the support plane can conveniently support the standard gauge block without the need for additional fixing, thereby simplifying the fixing efficiency.

[0042] See also Figure 3In one or more embodiments, the clamping mechanism 140 further includes an adjusting member 144 for adjusting the support member 143. The adjusting member 144 can adjust the position of the support member 143 in the vertical direction (i.e., the up-down direction) and the horizontal direction (i.e., the left-right direction) perpendicular to the slide rail, so as to ensure that the standard member 150 fixed on the clamping mechanism 140 can extend horizontally along the direction of the first slide rail 121 (i.e., the front-back direction), thereby ensuring the calibration accuracy of the outside micrometer 220. The specific structure of the adjusting member 144 is not limited, for example, it can be a screw + nut, a gear + rack, etc.

[0043] It should be noted that the parts not mentioned in the second embodiment may be configured the same as those in the first embodiment and will not be described in detail here.

[0044] Therefore, the verification device 100 of the utility model can conveniently fix the measuring tools 200 of different specifications (especially large-sized measuring tools) horizontally on the workbench 110 through the slidable fixing mechanism 130, and accurately verify the accuracy of the measuring tool 200 by measuring the size of the standard part 150. The operation is simple and does not require the assistance of multiple people, which reduces the difficulty of operation and improves the verification accuracy. In addition, the verification device 100 of the utility model can also meet the verification needs of the vernier caliper 210 and the outside micrometer 220 at the same time, and has strong versatility.

[0045] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A calibration device for a measuring tool, It is characterized in that The verification device comprises: Workbench; A slide rail assembly, wherein the slide rail assembly is arranged on the workbench; a fixing mechanism, the fixing mechanism being slidably disposed on the slide rail assembly and configured to fix the measuring tool horizontally; a clamping mechanism slidably disposed on the slide rail assembly and spaced apart from the fixing mechanism; and The standard part is configured to be positioned on the same horizontal plane as the measuring tool through the clamping mechanism so as to perform accuracy verification on the measuring tool.

2. The calibration device for a measuring tool according to claim 1, It is characterized in that The slide rail assembly comprises a first slide rail and a second slide rail which are parallel to each other, wherein the fixing mechanism is slidably arranged on the first slide rail, and the clamping mechanism is slidably arranged on the second slide rail.

3. The calibration device for a measuring tool according to claim 2, It is characterized in that The fixing mechanism comprises a plurality of support plates spaced apart from each other, wherein the plurality of support plates have support surfaces located on the same horizontal plane and used for supporting the measuring tool.

4. The calibration device for a measuring tool according to claim 2 or 3, It is characterized in that The clamping mechanism includes a plurality of first clamps spaced apart from each other, and each of the first clamps is configured to clamp the standard component.

5. The calibration device for a measuring tool according to claim 4, It is characterized in that The verification device further comprises an auxiliary member, wherein the auxiliary member is suitable for being positioned at both ends of the standard member and being perpendicular to the standard member; and The clamping mechanism further comprises second clamps arranged on both sides of the plurality of first clamps, and a clamping groove for fixing the standard component and the auxiliary component together is formed on the second clamps.

6. The calibration device for a measuring tool according to claim 1, It is characterized in that The slide rail assembly comprises a single slide rail, wherein the fixing mechanism and the clamping mechanism are both slidably arranged on the slide rail.

7. The calibration device for a measuring tool according to claim 6, It is characterized in that The fixing mechanism comprises two fixing clamps spaced apart from each other, and each of the fixing clamps is configured to clamp the measuring tool; and The clamping mechanism includes a plurality of support members arranged between the two fixing clamps and spaced apart from each other.

8. The calibration device for a measuring tool according to claim 7, It is characterized in that Each of the support members has a V-shaped groove for supporting the standard member; Alternatively, each of the supporting members has a supporting plane for supporting the standard member.

9. The calibration device for a measuring tool according to claim 8, It is characterized in that The clamping mechanism further comprises an adjusting member for adjusting the supporting member, so that the position of the supporting member in the vertical direction and the position in the horizontal direction perpendicular to the slide rail are both adjustable.

10. A calibration device for a measuring tool according to any one of claims 6 to 9, It is characterized in that The calibration device further includes an auxiliary support table spaced apart from the workbench, and the auxiliary support table has an auxiliary support surface for supporting the measuring tool.

Images