Measuring tool standard block

Abstract

The utility model relates to the technical field of thread measurement, in particular to a measuring tool standard block. According to the measuring tool standard block provided by the utility model, the surface of the measuring tool standard block is provided with at least one group of calibration grooves, one group of calibration grooves comprises two calibration grooves, and the two calibration grooves of one group can be clamped by two measuring heads of a screw pitch measuring instrument in a one-to-one correspondence manner so as to calibrate the screw pitch measuring instrument. The measuring tool standard block is provided with a group of calibration grooves, a measuring head of a tooth height measuring instrument can be clamped into any one calibration groove in one group so as to calibrate the tooth height measuring instrument, in addition, the measuring tool standard block is further provided with two symmetrically-arranged top diameter calibration faces, and the two measuring heads of the top diameter measuring instrument can abut against the two top diameter calibration faces in a one-to-one correspondence mode so as to calibrate the top diameter measuring instrument. The measuring tool standard block provided by the utility model is simultaneously provided with the calibration groove and the top diameter calibration surface, is relatively strong in portability, can calibrate a screw pitch measuring instrument, a tooth height measuring instrument and a top diameter measuring instrument without carrying a plurality of measuring tool standard blocks, and greatly improves the calibration efficiency of the measuring tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to thread measurement technical field especially relates to a measuring tool marker block. BACKGROUND

[0002] Different thread measuring tools can measure the tooth height, pitch or inside and outside top diameter of the threaded part, and before using the thread measuring tool to measure the threaded part, the thread measuring tool is generally calibrated to ensure the measurement accuracy of the thread measuring tool.

[0003] In the prior art, the thread measuring tool is generally calibrated by a marker block, for example, a top diameter marker block is needed when calibrating a top diameter measuring instrument, and the measuring head of the top diameter measuring instrument is clamped on the working surface of the top diameter marker block to calibrate the top diameter measuring instrument.

[0004] However, different measuring tool marker blocks are needed to calibrate different thread measuring tools in the prior art, such as pitch marker blocks and tooth height marker blocks, and too many types of measuring tool marker blocks make it difficult for workers to carry them, and different measuring tool marker blocks need to be found when facing different measuring tools, which greatly affects the calibration efficiency. Therefore, a measuring tool marker block is needed to solve the above problems. SUMMARY

[0005] The utility model aims at providing a measuring tool marker block to solve the problems of inconvenient carrying and low calibration efficiency of the measuring tool marker block in the prior art.

[0006] According to the above idea, the technical scheme adopted by the utility model is as follows:

[0007] A measuring tool marker block, at least one set of calibration grooves is arranged on the surface of the measuring tool marker block, one set of the calibration grooves includes two calibration grooves, and the two calibration grooves of one set are used to be clamped into one by one by two measuring heads of a pitch measuring instrument to calibrate the pitch measuring instrument.

[0008] Any one of the calibration grooves of one set is used to be clamped into by a measuring head of a tooth height measuring instrument to calibrate the tooth height measuring instrument.

[0009] The measuring tool marker block is also provided with two symmetrical top diameter calibration surfaces, and the two top diameter calibration surfaces are used to be abutted one by one by two measuring heads of a top diameter measuring instrument to calibrate the top diameter measuring instrument.

[0010] Optionally, the calibration grooves are arranged in three groups, the axial cross-sectional shapes of the calibration grooves of different groups are different, and the axial cross-sectional shapes of the calibration grooves are in the shape of U, V or H.

[0011] Optionally, the calibration grooves are arranged on the top surface of the measuring tool marker block and are arranged in an array along a first direction.

[0012] Optionally, two bearing protrusions are symmetrically arranged on the upper side of the gauge block, and the upper sides of the two bearing protrusions are used to bear the top diameter measuring instrument.

[0013] Optionally, the calibration groove is arranged on the top surface of the gauge block and located between the two bearing protrusions.

[0014] Optionally, a flexible pad is arranged on the upper side of the bearing protrusion, and the upper side of the flexible pad is used to abut against the top diameter measuring instrument.

[0015] Optionally, in the first direction, the two top diameter calibration surfaces are arranged on opposite sides of the gauge block, respectively.

[0016] Optionally, the axial section of the gauge block is trapezoidal, and the length of the upper side of the axial section of the gauge block is less than the length of the lower side of the axial section of the gauge block.

[0017] Optionally, the gauge block is provided with a weight-reducing hole penetrating through the gauge block along a direction perpendicular to the first direction.

[0018] Optionally, the gauge block is made of alloy steel.

[0019] The gauge block has the following beneficial effects:

[0020] The gauge block has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present application and the drawings without creative labor.

[0022] Figure 1 is a front view of a gauge block provided by the embodiments of the present application.

[0023] Figure 2 is a side view of the measuring block provided by the embodiment of the present application.

[0024] In the drawings:

[0025] 1, measuring block; 11, calibration groove; 12, top diameter calibration surface; 13, bearing protrusion; 14, weight reduction hole. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all.

[0027] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. In the description of the present embodiment, if not specially stated, "a plurality of" specifically refers to two or more than two.

[0030] In the description of the embodiments, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0031] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element.

[0032] The technical solutions of the present application will be further illustrated below in conjunction with the drawings and through specific embodiments.

[0033] The present embodiment proposes a measuring module to solve the problems of inconvenient carrying and low calibration efficiency of the measuring block in the prior art.

[0034] As shown in Figures 1-2 The measuring block 1 is provided with at least one set of calibration grooves 11 on the surface, and each set of calibration grooves 11 includes two calibration grooves 11. The two calibration grooves 11 of each set are used to be correspondingly clamped into the two measuring heads of the pitch measuring instrument to calibrate the pitch measuring instrument. Any one calibration groove 11 of each set is used to be clamped into the measuring head of the tooth height measuring instrument to calibrate the tooth height measuring instrument. The measuring block 1 is also provided with two symmetrically arranged top diameter calibration surfaces 12, which are used to be correspondingly abutted by the two measuring heads of the top diameter measuring instrument to calibrate the top diameter measuring instrument.

[0035] Understandably, the thread parameters such as pitch, tooth height and top diameter of the threaded part need to be measured by special measuring tools. Before measurement, the measuring tools need to be calibrated, and the calibration of the measuring tools is generally assisted by the block. For example, the two measuring heads of the pitch measuring instrument are correspondingly clamped into the two grooves of the pitch block, so as to calibrate the pitch measuring instrument. The measuring head of the tooth height measuring instrument is clamped into the groove of the tooth height block, so as to calibrate the tooth height measuring instrument. The two measuring heads of the top diameter measuring instrument are correspondingly abutted on the two working surfaces of the top diameter block, so as to calibrate the top diameter measuring instrument.

[0036] The embodiment is characterized in that the pitch measuring instrument and the tooth height measuring instrument are calibrated by the at least one set of calibration grooves 11 and the two top-diameter calibration surfaces 12, and the top-diameter measuring instrument is calibrated by the two top-diameter calibration surfaces 12. The gauge block 1 of the embodiment has the functions of calibrating the pitch measuring instrument, the tooth height measuring instrument and the top-diameter measuring instrument, and has high calibration efficiency. A worker only needs to carry one gauge block 1 to calibrate multiple measuring instruments, and the gauge block 1 has high portability.

[0037] Optionally, the gauge block 1 is symmetrically provided with two bearing protrusions 13 on the upper side, and the upper side of the two bearing protrusions 13 is used to bear the top-diameter measuring instrument. The bearing protrusions 13 can stably support the top-diameter measuring instrument, thereby improving the calibration accuracy of the top-diameter measuring instrument.

[0038] Optionally, the upper side of the bearing protrusion 13 is provided with a flexible pad, and the upper side of the flexible pad is used to abut against the top-diameter measuring instrument. The flexible pad is arranged between the bearing protrusion 13 and the top-diameter measuring instrument to provide buffering, which can prevent the bearing protrusion 13 from scratching the top-diameter measuring instrument, thereby improving the use reliability and user experience of the gauge block 1.

[0039] To facilitate calibration of the pitch measuring instrument and the tooth height measuring instrument, the calibration grooves 11 are optionally arranged on the top surface of the gauge block 1 and arranged in an array along the first direction. The calibration grooves 11 arranged on the top surface of the gauge block 1 can facilitate calibration of the pitch measuring instrument and the tooth height measuring instrument. The measuring head is vertically inserted into the calibration groove 11, without the need for turning over the gauge block 1 or other operations, thereby improving the convenience and calibration efficiency of the calibration operation. In the embodiment, Figure 1 The direction indicated by the arrow is the first direction.

[0040] To protect the calibration grooves 11, the calibration grooves 11 are optionally arranged on the top surface of the gauge block 1 and located between the two bearing protrusions 13. The calibration grooves 11 are protected by the bearing protrusions 13, and the bearing protrusions 13 can prevent the calibration grooves 11 from being bumped when the gauge block 1 falls, thereby improving the use reliability of the gauge block 1.

[0041] Optionally, the axial section of the gauge block 1 is trapezoidal, and the upper side length of the axial section of the gauge block 1 is less than the lower side length of the axial section of the gauge block 1. The gauge block 1 has good stability and is not easy to fall, thereby improving the stability during calibration.

[0042] Optionally, the calibration groove 11 is arranged in three groups, the axial cross-sectional shape of the calibration groove 11 in different groups is different, and the axial cross-sectional shape of the calibration groove 11 is in the shape of U, V or H. This arrangement can make the gauge block 1 applicable to different models of thread measuring instruments and tooth height measuring instruments, thereby improving the application range of the gauge block 1 and improving user satisfaction.

[0043] In this embodiment, the calibration groove 11 is arranged in one group, and the axial cross-section of the calibration groove 11 is in the shape of H. Arranging only one group of calibration grooves 11 helps to save space and difficulty in opening. Of course, in other embodiments, the calibration groove 11 is not limited to one group or three groups, and can be opened as needed according to the types of measuring instruments to be used, and is not limited here.

[0044] Optionally, along the first direction, the two top diameter calibration surfaces 12 are arranged on opposite sides of the gauge block 1. This arrangement facilitates the abutment of the measuring head of the top diameter measuring instrument on the top diameter calibration surface 12, and the lowering of the top diameter measuring instrument from the upper side of the gauge block 1 and the abutment of the measuring head. This improves the calibration efficiency of the gauge block 1.

[0045] Optionally, the gauge block 1 is provided with a weight-reducing hole 14 extending therethrough in a direction perpendicular to the first direction. This arrangement can make the gauge block 1 more lightweight, thereby improving the portability of the gauge block 1.

[0046] Optionally, the gauge block 1 is made of alloy steel material. Alloy steel material has high strength and high toughness, and the gauge block 1 is not easy to deform, thereby improving the use reliability of the gauge block 1 and prolonging the service life of the gauge block 1.

[0047] Optionally, the gauge block 1 is made of alloy steel material. Alloy steel material has high strength and high toughness, and the gauge block 1 is not easy to deform, thereby improving the use reliability of the gauge block 1 and prolonging the service life of the gauge block 1.

[0048] Optionally, the gauge block 1 is made of alloy steel material. Alloy steel material has high strength and high toughness, and the gauge block 1 is not easy to deform, thereby improving the use reliability of the gauge block 1 and prolonging the service life of the gauge block 1.

[0049] The working process of the gauge block 1 of the present embodiment is as follows:

[0050] When the tooth height measuring instrument needs to be calibrated, the calibration groove 11 corresponding to the model of the used tooth height measuring instrument is selected, the bezel screw of the tooth height measuring instrument is loosened, the measuring head of the tooth height measuring instrument is clamped into the selected calibration groove 11, the tooth height measuring instrument is slightly swung left and right, the inflection point position of the indicating needle of the tooth height measuring instrument is found, the bezel is rotated, and when the inflection point position of the indicating needle coincides with the 0 scale of the indicating table, the bezel screw of the tooth height measuring instrument is locked.

[0051] When the pitch measuring instrument needs to be calibrated, the calibration groove 11 corresponding to the model of the used pitch measuring instrument is selected, the bezel screw of the pitch measuring instrument is loosened, the two measuring heads of the pitch measuring instrument are clamped into the selected two calibration grooves 11 respectively, the pitch measuring instrument is slightly swung left and right, the inflection point position of the indicating needle of the pitch measuring instrument is found, the bezel is rotated, and when the inflection point position of the indicating needle coincides with the 0 scale of the indicating table, the bezel screw of the pitch measuring instrument is locked.

[0052] When the pitch measuring instrument needs to be calibrated, the calibration groove 11 corresponding to the model of the used pitch measuring instrument is selected, the bezel screw of the pitch measuring instrument is loosened, the two measuring heads of the pitch measuring instrument are clamped into the selected two calibration grooves 11 respectively, the pitch measuring instrument is slightly swung left and right, the inflection point position of the indicating needle of the pitch measuring instrument is found, the bezel is rotated, and when the inflection point position of the indicating needle coincides with the 0 scale of the indicating table, the bezel screw of the pitch measuring instrument is locked.

[0053] It should be noted that the above is only the preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A gauge block characterized in that, The gauge block surface is provided with at least one set of calibration grooves (11), and one set of the calibration grooves (11) includes two calibration grooves (11) for being correspondingly clamped by two probes of a pitch measuring instrument to calibrate the pitch measuring instrument. Any one of the calibration grooves (11) is used for being clamped by a probe of a tooth height measuring instrument to calibrate the tooth height measuring instrument. The gauge block is further provided with two symmetrically arranged top diameter calibration surfaces (12) for being correspondingly abutted by two probes of a top diameter measuring instrument to calibrate the top diameter measuring instrument.

2. The gauge block of claim 1, wherein The calibration grooves (11) are arranged in three groups, and the axial cross-sectional shapes of the calibration grooves (11) in different groups are different, and the axial cross-sectional shapes of the calibration grooves (11) are in U shape or V shape or Chinese character shape.

3. The gauge block of claim 2, wherein, The calibration grooves (11) are arranged on the top surface of the gauge block (1) and are arranged in an array along a first direction.

4. The gauge block of claim 1, wherein, The gauge block (1) is symmetrically provided with two bearing protrusions (13) on the upper side, and the upper sides of the two bearing protrusions (13) are used for bearing the top diameter measuring instrument.

5. The gauge block of claim 4, wherein, The calibration grooves (11) are arranged on the top surface of the gauge block (1) and are located between the two bearing protrusions (13).

6. The gauge block of claim 4, wherein, The upper side of the bearing protrusion (13) is provided with a flexible pad, and the upper side of the flexible pad is used for abutting against the top diameter measuring instrument.

7. The gauge block of claim 1, wherein Along the first direction, the two top diameter calibration surfaces (12) are respectively arranged on opposite sides of the gauge block.

8. The gauge block of claim 1, wherein, The axial cross section of the gauge block is in trapezoidal shape, and the upper side length of the axial cross section of the gauge block is less than the lower side length of the axial cross section of the gauge block.

9. The gauge block of claim 1, wherein, The gauge block is provided with a weight-reducing hole (14) which is arranged through the gauge block along a direction perpendicular to the first direction.

10. The gauge block of any of claims 1-9, wherein, The gauge block is made of alloy steel material.

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