Level measuring device

Abstract

The utility model provides a horizontal measurement device, and belongs to the technical field of measurement. The horizontal measuring device comprises a base, the base comprises a first end part and a second end part opposite to the first end part, the first end part limits a measuring surface, and the second end part limits a central axis parallel to the measuring surface; the fitting block comprises a third end part and a fourth end part opposite to the third end part, the third end part is rotatably connected with the second end part, so that the fitting block can rotate around the central axis, and the fitting block defines a fitting part for fitting a to-be-tested workpiece at the fourth end part; the attaching part is configured to be parallel to the axial direction of the to-be-measured workpiece under the condition that the attaching part is attached to the peripheral face of the to-be-measured workpiece. According to the technical scheme of the embodiment of the invention, the levelness of the workpiece to be measured in the axial direction can be indirectly obtained, and the measurement flexibility is improved.

Description

Technical Field

[0001] The present application relates to the field of measurement technology, and in particular to a level measuring device. Background Art

[0002] Measurement technology plays a vital role in industrial manufacturing. Through key measurement technologies such as level measurement, design defects or production problems of industrial products can be discovered in time and improved in time, thereby improving the function and performance of products, helping companies ensure that products meet these standards and specifications, and enhancing product and corporate competitiveness. For example, the level of the horizontally installed roller in the automatic winding machine is measured by a level meter (which has a great impact on the quality of the battery cell winding).

[0003] However, in the case of a complex working environment, a large size of the measured object or a complex placement position, existing level measuring devices often have problems such as insufficient measuring space and insufficient flexibility in measuring operations. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a level measuring device to improve the problems of insufficient measuring space and insufficient operational flexibility.

[0005] An embodiment of the present application provides a horizontal measuring device, comprising: a base, the base comprising a first end and a second end opposite to the first end, wherein the first end defines a measuring surface, and the second end defines a central axis parallel to the measuring surface; a bonding block, the bonding block comprising a third end and a fourth end opposite to the third end, the third end being rotatably connected to the second end so that the bonding block can rotate around the central axis, and the bonding block defines a bonding portion for bonding a workpiece to be measured at the fourth end, the bonding portion being constructed so that when bonding to the outer peripheral surface of the workpiece to be measured, the central axis is parallel to the axial direction of the workpiece to be measured.

[0006] In the technical solution of the embodiment of the present application, the bonding block rotates around the central axis parallel to the measuring surface, and the bonding block has a bonding portion that makes the central axis parallel to the axial direction of the workpiece to be measured, so that the measuring surface is parallel to the axial direction of the workpiece to be measured. Therefore, the horizontality of the measuring surface in the direction parallel to the central axis is equal to the horizontality of the workpiece to be measured in its axial direction, and then the horizontality of the workpiece to be measured in its axial direction can be indirectly obtained by measuring the corresponding horizontality on the measuring surface, thereby improving the flexibility of measurement. In addition, the bonding block can rotate around the central axis, which is conducive to the staff of the measurement operation to adjust the position and angle of the bonding block according to the actual situation to adapt to the measurement requirements of different workpieces (especially, the workpiece to be measured that is compactly arranged with other components and is in a narrow position), which not only improves the work efficiency of the measurement, but also has strong versatility and flexibility.

[0007] In some embodiments, the fitting portion defines a fitting curved surface, and the curvature of the fitting curved surface is consistent with the curvature of the peripheral surface of the workpiece to be measured. In the above embodiment, the fitting curved surface and the peripheral surface with consistent curvature improve the fitting accuracy between the fitting portion and the workpiece to be measured, can reduce the measurement error caused by poor fitting or deformation, further promote the parallelism of the measuring surface and the axis direction of the workpiece to be measured, and improve the accuracy and reliability of horizontal measurement.

[0008] In some embodiments, the fitting portion defines two fitting planes, and the two fitting planes are constructed to be tangent to the outer peripheral surface of the workpiece to be measured when the fitting portion fits the workpiece to be measured. In the above embodiment, the tangency of the two fitting planes to the outer peripheral surface of the workpiece to be measured makes the fitting between the fitting portion and the workpiece to be measured more stable, and further promotes the parallelism of the measuring surface and the axial direction of the workpiece to be measured, thereby improving the accuracy and stability of the horizontal measurement. In addition, by setting the fitting plane, the fitting portion can be adapted to workpieces of different sizes to be measured, that is, it can maintain tangency with workpieces of different sizes to be measured, thereby improving the versatility of the horizontal measurement device.

[0009] In some embodiments, at least one first liquid bubble is provided on the measuring surface, and the at least one first liquid bubble is used to measure the horizontality of the measuring surface in a direction perpendicular to the central axis. The first liquid bubble is simple and convenient to set, and has low cost. The measuring operator can adjust the position of the measuring device at any time according to the first liquid bubble, so that the measuring surface remains horizontal in the direction perpendicular to the central axis, thereby further promoting the horizontality of the measuring surface in a direction parallel to the central axis to be equal to the horizontality of the workpiece to be measured in its axial direction, thereby improving the accuracy of the horizontal measurement of the workpiece to be measured.

[0010] In some embodiments, a level meter is provided on the measuring surface, and the level meter is used to measure the level of the measuring surface in a direction parallel to the central axis. The level meter can accurately and comprehensively measure the level, which is conducive to more accurately evaluating the level of the measuring surface in a direction parallel to the central axis.

[0011] In some embodiments, the third end is rotatably connected to the second end via a rotating shaft, wherein the axial direction of the rotating shaft coincides with the central axis. The rotating shaft connection can promote a stable and reliable connection between the bonding block and the base, which is not easy to loosen or swing, and is conducive to improving the stability and accuracy of the measurement. In addition, the rotating shaft connection can reduce the friction and wear between the bonding block and the base, which helps to extend the service life of the entire device.

[0012] In some embodiments, a base fixing screw is further included, the base fixing screw being arranged at the first end and being used to lock the base and the rotating shaft. The base fixing screw can fix the base and the rotating shaft relatively so that the base cannot rotate around the rotating shaft, thereby stabilizing the orientation of the measuring surface for the measurement of the level measuring instrument.

[0013] In some embodiments, a fitting block set screw is further included, and the fitting block set screw is used to lock the fitting block and the rotating shaft. The fitting block set screw locks the fitting block and the rotating shaft, thereby improving the stability of the relative position between the two and helping to promote the axial direction of the rotating shaft to be parallel to the central axis.

[0014] In some embodiments, an adjusting screw is further included, and the adjusting screw is disposed on the fitting block and is used to adjust the position of the rotating shaft so that when the fitting portion fits the outer peripheral surface of the workpiece to be measured, the axial direction of the rotating shaft is parallel to the axial direction of the workpiece to be measured. The adjusting screw can provide adjustment of the position of the rotating shaft, which helps to make the axial direction of the rotating shaft parallel to the axial direction of the workpiece to be measured when the fitting portion fits the workpiece to be measured, thereby improving the accuracy of the measurement. In addition, the measurement operator can adjust the position of the rotating shaft by adjusting the screw according to the actual situation, which is easy to operate and helps to improve work efficiency.

[0015] In some embodiments, the level measuring instrument is a second liquid bubble with a scale. In the above embodiments, the second liquid bubble is relatively simple to manufacture, which helps to reduce the manufacturing cost of the device.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0018] Figure 1 A three-dimensional diagram of a level measuring device according to some embodiments of the present application;

[0019] Figure 2 for Figure 1 A front view of a level measuring device, wherein: Figure 2 At the same time, a partial cross-sectional view of the base set screw and the fitting block set screw is also shown;

[0020] Figure 3 for Figure 1 A side view of a level measuring device;

[0021] Figure 4 for Figure 1 A top view of a level measuring device;

[0022] Figure 5 for Figure 1 A perspective view of a base of a level measuring device;

[0023] Figure 6 for Figure 1 A three-dimensional view of a fitting block of a level measuring device;

[0024] Figure 7 for Figure 1 A cross-sectional view of the rotating shaft of the level measuring device;

[0025] Figure 8 A three-dimensional diagram of a level measuring device according to some other embodiments of the present application;

[0026] Fig. 9 for Figure 8 A side view of a level measuring device;

[0027] Fig.10 for Figure 8 A perspective view of the level measuring device from another angle;

[0028] Fig.11 for Figure 8 A top view of a level measuring device;

[0029] Fig.12 for Figure 8 A front view of a level measuring device;

[0030] Fig.13 for Figure 1 Working diagram of the level measuring device;

[0031] Fig.14 for Figure 1 Another working diagram of the level measuring device from another angle.

[0032] Description of reference numerals:

[0033] A workpiece to be measured 10, a level measuring device 100, 200;

[0034] Base 101, 101', first end 1011, 1011', second end 1012, 1012';

[0035] Fitting blocks 102, 102', third ends 1021, 1021', and fourth ends 1022, 1022';

[0036] Rotating shaft 103, 103', base set screw 104, fitting block set screw 105, first liquid bubble 106, measuring surface 107, 107', fitting part 108, 108', fitting curved surface 109;

[0037] Fitting plane 110, adjusting screw 111, second liquid bubble 112;

[0038] Level measuring instrument 113, center axis L1. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] At present, in industrial environments, various key measurement technologies, such as level measurement, can be used to detect design defects or production problems of industrial products in a timely manner and make timely improvements.

[0048] However, in some complex working environments, the measuring device may not be able to easily access the position to be measured, or may not be able to fully cover the entire measuring range. For example, during the maintenance or daily monitoring of various types of electromechanical equipment, due to the complex structure of the equipment (for example, the rollers of the automatic winder are compactly arranged, and some rollers are located in a narrow position), the traditional measuring device may not be able to fully contact the part to be measured (for example, the roller), resulting in the inability to accurately measure the relevant parameters. This will affect the accuracy and comprehensiveness of the measurement, and thus affect the quality and service life of the equipment. In addition, if the design of the measuring device is too bulky or rigid, it will also be difficult to adapt to the measurement needs of different positions and angles, thereby affecting the accuracy and efficiency of the measurement.

[0049] Based on the above technical problems found, a horizontal measuring device is provided, in which the bonding block rotates around the central axis parallel to the measuring surface, and the bonding block has a bonding portion that makes the central axis parallel to the axial direction of the workpiece to be measured, so that the measuring surface is parallel to the axial direction of the workpiece to be measured, and then the horizontality of the workpiece to be measured in its axial direction can be indirectly obtained by measuring the corresponding horizontality on the measuring surface, thereby improving the flexibility of measurement. In addition, the bonding block can rotate around the central axis, which is conducive to the staff of the measurement operation to adjust the position and angle of the bonding block according to the actual situation to meet the measurement requirements of different workpieces, which not only improves the work efficiency of the measurement, but also has strong versatility and flexibility.

[0050] The level measuring device disclosed in the embodiment of the present application can be used for various workpieces and parts installed horizontally, such as horizontally installed rollers and various parts in electromechanical equipment that need to measure the levelness.

[0051] Figure 1 A three-dimensional diagram of a level measuring device according to some embodiments of the present application; Figure 2 for Figure 1 A front view of a level measuring device, wherein: Figure 2 At the same time, a partial cross-sectional view of the base set screw and the fitting block set screw is also shown; Figure 3 for Figure 1 A side view of a level measuring device; Figure 4 for Figure 1 A top view of a level measuring device; Figure 5 for Figure 1 A perspective view of a base of a level measuring device; Figure 6 for Figure 1 A three-dimensional view of a fitting block of a level measuring device; Figure 7 for Figure 1 A cross-sectional view of the rotating shaft of a level measuring device.

[0052] like Figures 1 to 7As shown, an embodiment of the present application provides a horizontal measurement device 100, including: a base 101, the base includes a first end 1011 and a second end 1012 opposite to the first end 1011, wherein, the first end 1011 defines a measurement surface 107, and the second end 1012 defines a central axis L1 parallel to the measurement surface 107; a fitting block 102, the fitting block includes a third end 1021 and a fourth end 1022 opposite to the third end 1021, the third end 1021 is rotatably connected to the second end 1022, so that the fitting block 102 can rotate around the central axis, and the fitting block 102 defines a fitting portion 108 for fitting a workpiece to be measured 10 (such as Fig.13 and Fig.14 shown) at the fourth end 1022, and the fitting portion 108 is configured to have the central axis parallel to the axial direction of the workpiece to be measured 10 when fitting the outer peripheral surface of the workpiece to be measured 10.

[0053] As Figure 1 shown, the horizontal measurement device 100 may include a base 101 and a fitting block 102.

[0054] It can be understood that the second end 1012 may extend from the first end 1011. For example, as Figure 5 shown, the shape of the second end 1012 may extend from the first end 1011 and be elongated, so that the fitting block 102 connected to the second end 1012 can be inserted or introduced into a narrow and inaccessible measurement space (such as Fig.13 and Fig.14 shown) to measure the levelness of the workpiece to be measured.

[0055] In addition, the specific shapes of the base and the fitting block may not be limited. As Figure 1 , Figure 3 and Figure 5 shown, the base 101 may be set to a T shape, or the base 101 may further be set to a "work" shape as Fig.12 shown from the perspective of another view to save manufacturing costs. As Figure 6 shown, the fitting block 102 may also have a hollowed-out portion provided at its third end 1021. Correspondingly, as Figure 5 shown, the base 101 has an extension portion provided at its second end 1012. At this time, the base 101 and the fitting block 102 can be connected together through complementary hollowed-out portions and extension portions.

[0056] The surface of the measurement surface 107 defined by the first end 1011 is smooth and flat. For example, the roughness of the measurement surface 107 is equal to or close to zero.

[0057] In some examples, the parallelism between the central axis L1 and the measuring surface is within about 0.02. Alternatively or additionally, the parallelism between the central axis L1 and the axial direction of the workpiece to be measured in contact with the contact surface is within about 0.02.

[0058] In this article, the "axial direction" refers to the direction of the central axis of a component (for example, a workpiece to be measured or a rotating shaft). When the component is a cylinder or a cylindrical object, the axial direction refers to the direction of the central axis of rotation of the cylinder, that is, the same direction as the central axis.

[0059] The bonding block rotates around the central axis parallel to the measuring surface, and the bonding block has a bonding portion that makes the central axis parallel to the axial direction of the workpiece to be measured, so that the measuring surface is parallel to the axial direction of the workpiece to be measured. Therefore, the horizontality of the measuring surface in the direction parallel to the central axis is equal to the horizontality of the workpiece to be measured in its axial direction, and then the horizontality of the workpiece to be measured in its axial direction can be indirectly obtained by measuring the corresponding horizontality on the measuring surface, thereby improving the flexibility of measurement. In addition, the bonding block can rotate around the central axis, which is conducive to the staff of the measurement operation to adjust the position and angle of the bonding block according to the actual situation to meet the measurement requirements of different workpieces, which not only improves the work efficiency of the measurement, but also has strong versatility and flexibility.

[0060] According to some embodiments of the present application, Figures 1 to 7 As shown, the fitting portion 108 defines a fitting curved surface 109 , and the curvature of the fitting curved surface 109 is consistent with the curvature of the outer peripheral surface of the workpiece 10 to be measured.

[0061] like Figure 3 As shown, when the overall shape of the workpiece 10 to be measured is a cylinder, for example, the workpiece 10 to be measured is a roller, the fitting curved surface 109 can be an arc surface with the same curvature as the surface of the cylinder, and can be an arc line in the side view.

[0062] In the above embodiment, the fitting curved surface and the peripheral surface with consistent curvature improve the fitting accuracy between the fitting portion and the workpiece to be measured, can reduce the measurement error caused by poor fitting or deformation, further promote the parallelism of the measuring surface and the axial direction of the workpiece to be measured, and improve the accuracy and reliability of horizontal measurement.

[0063] According to some embodiments of the present application, the fitting portion defines two fitting planes, and the two fitting planes are configured to be tangent to the outer peripheral surface of the workpiece to be measured when the fitting portion fits the workpiece to be measured.

[0064] For example, Figures 8 to 11 ( Figures 8 to 11As shown in another embodiment of the level measuring device 200 of the present application, the bonding portion 108' of the bonding block 102' at the fourth end 1022' defines two bonding planes 110. The two bonding planes 110 can be connected by a transition region. In some examples, the two bonding planes 110 can also intersect each other.

[0065] The two bonding planes 110 are tangent to the outer peripheral surface of the workpiece to be measured when the bonding portion 108' is bonded to the workpiece to be measured, and the curvature at the bonding point between the bonding portion 108' and the workpiece to be measured may be consistent with the curvature of the two bonding planes 110. In some examples, the surfaces of the two bonding planes 110 may be flat and smooth, for example, the surface roughness of the two bonding planes 110 is equal to or close to zero. By setting the bonding planes, workpieces to be measured of different sizes (for example, rollers of different diameters) can all remain tangent to each other, for example, the outer peripheral surfaces of workpieces to be measured of different sizes are tangent to different positions of the two bonding planes.

[0066] It should be understood here that Figures 8 to 11 The above-described features of the abutment portion 108' of the illustrated level measuring device 200 may be substituted or added to Figures 1 to 8 Corresponding features of the abutment 108 of the level measuring device 100 are shown, and vice versa.

[0067] In the above embodiment, by making the two fitting planes tangent to the outer peripheral surface of the workpiece to be measured, the fitting between the fitting portion and the workpiece to be measured is more stable and adaptable to workpieces of different sizes to be measured, thereby further promoting the parallelism of the measuring surface with the axial direction of the workpiece to be measured, improving the accuracy and stability of the horizontal measurement and improving the versatility of the horizontal measurement device.

[0068] According to some embodiments of the present application, Figures 1 to 7 As shown, at least one first liquid bubble 106 is arranged on the measuring surface 107, and the at least one first liquid bubble 106 is used to measure the horizontality of the measuring surface 107 in a direction perpendicular to the central axis.

[0069] like Figure 1 and Figure 2 As shown, at least one first liquid bubble 106 can be disposed by embedding the base 101. In some examples, at least one first liquid bubble 106 can also be directly disposed on the measuring surface 107 by other suitable means. Figure 2 and Figure 4 As shown, at least one first vacuole 106 includes two first vacuoles, which may be arranged parallel to each other. In addition, the arrangement direction of at least one first vacuole 106 may be parallel to the central axis L1. Similarly, as Figures 8 to 12As shown, at least one first liquid bubble 106 having the above-mentioned characteristics may also be disposed on the measuring surface 107 ′ of the base 101 ′ of the level measuring device 200 .

[0070] In some examples, the horizontality of the measuring surface 107 in a direction perpendicular to the central axis L1 is determined by determining whether the bubble in at least one first bubble 106 is centered. For example, when the bubble in at least one first bubble 106 is centered, the measuring surface 107 can be considered to be horizontal in a direction perpendicular to the central axis.

[0071] The first liquid bubble is simple and convenient to set up, and has low cost. The measuring operator can adjust the position of the measuring device at any time according to the first liquid bubble, so that the measuring surface is kept horizontal in the direction perpendicular to the central axis, thereby further promoting the horizontality of the measuring surface in the direction parallel to the central axis to be equal to the horizontality of the workpiece to be measured in its axial direction, thereby improving the accuracy of the horizontal measurement of the workpiece to be measured.

[0072] According to some embodiments of the present application, a level measuring instrument is provided on the measuring surface, and the level measuring instrument is used to measure the levelness of the measuring surface in a direction parallel to the central axis.

[0073] In some examples, the level measuring instrument may be a suitable level measuring instrument such as an infrared leveling instrument, a theodolite, a clinometer, etc. In some examples, the level measuring instrument may calculate the levelness of the measuring surface by measuring the height difference between the two ends of the measuring surface.

[0074] In the level measuring device 100, as Fig.13 and Fig.14 As shown, the level measuring instrument 113 can be a separate device from the level measuring device. Figure 8 and Fig.12 As shown, the level measuring instrument may also be a device coupled to or embedded in the measuring surface 107 ′ of the base 101 ′ of the level measuring device 200 , for example, a second liquid bubble 112 with scales.

[0075] It should be understood here that Figures 8 to 11 The above-mentioned features of the level measuring instrument of the level measuring device 200 shown can be replaced or added to Figures 1 to 8 The illustrated level measuring device 100 has corresponding features for the level measuring instrument, and vice versa.

[0076] The levelness can be accurately and comprehensively measured by a level measuring instrument, which is conducive to more accurately evaluating the levelness of the measuring surface in a direction parallel to the central axis.

[0077] According to some embodiments of the present application, Figures 1 to 7As shown, the third end portion 1021 is rotatably connected to the second end portion 1012 via the rotating shaft 103 , wherein the axial direction of the rotating shaft 103 coincides with the central axis L1 .

[0078] like Figures 1 to 7 As shown, the rotating shaft 103 can be a rotating shaft in a suitable form such as a fixed bearing rotating shaft, a hollow rotating shaft, a disconnectable rotating shaft, etc. Figure 3 As shown, the bonding block 102 can also be rotatably connected to the base 101 via the rotating shaft 103. The axial direction of the rotating shaft 103 coincides with the central axis L1, that is, it is parallel to the axial direction of the workpiece to be measured under the bonding portion 108 and the measuring surface 107 defined by the first end 1011.

[0079] Likewise, if Figures 8 to 12 As shown, the second end 1012' of the base 101' of the level measuring device 200 is rotatably connected to the third end 1021' of the bonding block 102' via the rotating shaft 103'. The axial direction of the rotating shaft 103' coincides with the central axis, that is, it is parallel to the measuring surface 107' defined by the first end 1011' of the base 101' and the axial direction of the workpiece to be measured under the bonding portion 108'.

[0080] The shaft connection can promote the connection between the fitting block and the base to be stable and reliable, not easy to loosen or swing, which is conducive to improving the stability and accuracy of the measurement. In addition, the shaft connection can reduce the friction and wear between the fitting block and the base, which helps to extend the service life of the entire device.

[0081] According to some embodiments of the present application, Figures 1 to 7 As shown, the level measuring device 100 further includes a base fixing screw 104 , which is disposed at the first end 1011 and is used to lock the base 101 and the rotating shaft 103 .

[0082] like Figures 1 to 7 As shown, the number of the base set screws 104 may be one or more. In some examples, the plurality of base set screws 104 may be symmetrically distributed along the geometric center of the first end portion 1011 on the first end portion 1011 .

[0083] like Figure 2As shown in the partial cross-sectional view of the base set screw in FIG, the base set screw 104 can lock the relative rotation of the base 101 and the rotating shaft 103 by contacting the outer peripheral surface of the rotating shaft 103. In the case where the base set screw contacts the outer peripheral surface of the rotating shaft, the base set screw can also be additionally used to adjust the axial direction of the rotating shaft 103 to maintain parallelism with the axial direction of the workpiece to be measured in contact with the measuring surface 107 and the contact portion 108. Alternatively, a recess can be provided on the rotating shaft, and the base set screw can be screwed into or inserted into the recess to lock the relative rotation of the base 101 and the rotating shaft 103.

[0084] When using the level measuring device 100, the base fixing screw 104 on the base 101 can be loosened with a tool such as a hexagonal wrench so that the base 101 can rotate freely around the rotating shaft 103. At this time, the bonding block 102 can be inserted into the measuring position so that the bonding block 102 fits the outer peripheral surface of the workpiece 10 to be measured. Then, the position of the base 101 is adjusted so that the measuring surface of the base 101 remains horizontal in a direction perpendicular to the central axis (for example, the bubble in the first liquid bubble is placed in the middle position). Next, the base fixing screw 104 on the base 101 is tightened with a hexagonal wrench so that the base 101 is locked (fixed) with the rotating shaft 103. A level measuring instrument is placed on the measuring surface 107 of the base 101 to measure the level. After the measurement is completed, the base fixing screw 105 on the base 101 is loosened with a hexagonal wrench to allow the rotating shaft to resume free rotation so as to remove the level measuring device.

[0085] In addition, when the base fixing screw 104 is assembled with the base 101 , the axial direction of the base fixing screw 104 may be perpendicular to the central axis direction defined by the second end portion 1012 .

[0086] Likewise, Figures 8 to 12 The level measuring device 200 shown in the figure may also be provided with a base fixing screw 104 on the first end portion 1011' of the base 101', which is connected to the base fixing screw 104. Figures 1 to 7 The base set screw 104 of the level measuring device 100 has the same features.

[0087] The base fixing screw can fix the base and the rotating shaft relatively to each other so that the base cannot rotate around the rotating shaft, thereby stabilizing the orientation of the measuring surface to facilitate measurement by the levelness measuring device.

[0088] According to some embodiments of the present application, Figures 1 to 7 As shown, the level measuring device 100 further includes a fitting block fixing screw 105 , and the fitting block fixing screw 105 is used to lock the fitting block 102 and the rotating shaft 103 .

[0089] like Figures 1 to 7As shown, the number of the bonding block fastening screw 105 can be one. The bonding block fastening screw 105 can be set at the bottom of the fourth end 1022 of the bonding block 102, for example.

[0090] like Figure 2 As shown in the partial cross-sectional view of the fitting block set screw, the fitting block set screw 105 can be inserted into the interior of the shaft 103 to lock the fitting block 102 and the shaft 103. Accordingly, the shaft 103 can be provided with a thread for assembling the fitting block set screw, such as Figure 7 shown.

[0091] In addition, when the fitting block fixing screw 105 is assembled with the fitting block 102 and the rotating shaft 103 , the axial direction of the fitting block fixing screw 105 may be perpendicular to the central axis direction defined by the second end 1012 of the base 101 .

[0092] Alternatively, if Figures 8 to 12 As shown, the number of the fitting block fixing screws 105 can be set to multiple, for example, 3. The multiple fitting block fixing screws can be arranged at intervals along the direction of the central axis. Figures 8 to 12 Each of the illustrated mating block set screws 105 may be connected to Figures 1 to 7 The above-mentioned features of the fitting block set screw 105 of the level measuring device 100 are the same.

[0093] The fitting block set screw locks the fitting block and the rotating shaft, thereby improving the stability of the relative position between the two and helping to promote the axial direction of the rotating shaft to be parallel to the central axis.

[0094] According to some embodiments of the present application, the horizontal measuring device 100 also includes an adjusting screw, which is arranged on the fitting block to adjust the position of the rotating shaft so that when the fitting portion 108 fits the outer peripheral surface of the workpiece 10 to be measured, the axial direction of the rotating shaft 103 is parallel to the axial direction of the workpiece to be measured.

[0095] For example, Figures 8 to 12 As shown, the adjusting screw 111 is arranged at the third end 1021' of the fitting block 102'. Figure 8 and Fig. 9 As shown, the number of the adjusting screws 111 may be one or more. Preferably, the plurality of adjusting screws 111 may be substantially symmetrically distributed relative to the geometric center of the fitting block 102. In addition, the adjusting screws 111 may adjust the position of the rotating shaft 103 by, for example, contacting the rotating shaft 103.

[0096] It should be understood here that Figures 8 to 11 The above-mentioned features of the adjustment screw 111 of the illustrated level measuring device 200 may be added to Figures 1 to 8 A level measuring device 100 is shown.

[0097] The adjusting screw can adjust the position of the rotating shaft, which helps to make the axial direction of the rotating shaft parallel to the axial direction of the workpiece to be measured when the fitting part fits the workpiece to be measured, thereby improving the accuracy of the measurement. In addition, the measuring operator can adjust the position of the rotating shaft by adjusting the screw according to the actual situation, which is easy to operate and helps to improve work efficiency.

[0098] According to some embodiments of the present application, the level measuring instrument is a second liquid bubble with a scale.

[0099] For example, a level measuring instrument may be Figure 8 and Fig.12 The second vacuole 112 is shown. The second vacuole may be arranged in a direction perpendicular to the first vacuole 106. The second vacuole 112 may be arranged by being embedded in the measuring surface 107' of the base 101', or may be fixed on the measuring surface 107' by bolts or screws.

[0100] In some examples, the horizontality of the measuring surface 107' in the direction of the central axis is determined by determining whether the bubble in the second liquid bubble 112 is centered. The horizontality of the measuring surface 107' can be obtained by the scale of the bubble in the second liquid bubble 112 deviating from the center position.

[0101] It should be understood here that Figures 8 to 11 The above-mentioned features of the second bubble 112 of the illustrated level measuring device 200 may be added to Figures 1 to 8 A level measuring device 100 is shown.

[0102] In the above embodiment, the second liquid bubble is relatively simple to manufacture, which helps to reduce the manufacturing cost of the device.

[0103] like Fig.13 and Fig.14 As shown, the horizontality of the workpiece 10 to be measured in its axial direction can be measured using the level measuring device 100 provided in this embodiment. Specifically, the bonding block 102 can be bonded to the surface of the workpiece 10 to be measured by the base 101, and the bonding accuracy of the bonding block 102 and the workpiece 10 to be measured can be adjusted by rotating the bonding block 102 around the rotating shaft 103. The bonding block 102 is bonded so that the axial direction of the workpiece 10 to be measured is parallel to the central axis defined by the second end of the base. The base 101 defines a measuring surface 107 parallel to the central axis of the second end, and the first liquid bubble 106 is used to determine whether the measuring surface 107 remains horizontal in a direction perpendicular to the central axis. Therefore, the horizontality of the measuring surface 107 can be measured by a level measuring instrument 113 to indirectly obtain the horizontality of the workpiece 10 to be measured in its axial direction.

[0104] The horizontal measuring device includes: a base, the base includes a first end and a second end opposite to the first end, wherein the first end defines a measuring surface and the second end defines a central axis parallel to the measuring surface; a bonding block, the bonding block includes a third end and a fourth end opposite to the third end, the third end is rotatably connected to the second end so that the bonding block can rotate around the central axis, and the bonding block defines a bonding portion for bonding a workpiece to be measured at the fourth end, and the bonding portion is constructed so that when it is bonded to the outer peripheral surface of the workpiece to be measured, the central axis is parallel to the axial direction of the workpiece to be measured.

[0105] The fitting portion defines two fitting planes, and the two fitting planes are configured to be tangent to the outer peripheral surface of the workpiece to be measured when the fitting portion fits the workpiece to be measured.

[0106] The measuring surface is provided with at least one first liquid bubble, and the at least one first liquid bubble is used to measure the horizontality of the measuring surface in a direction perpendicular to the central axis. The measuring surface is provided with a levelness measuring device, and the levelness measuring device is used to measure the levelness of the measuring surface in a direction parallel to the central axis. The levelness measuring device is a second liquid bubble with a scale.

[0107] The third end is rotatably connected to the second end through a rotating shaft, wherein the axial direction of the rotating shaft defines the central axis. The horizontal measuring device also includes a base set screw, which is arranged at the first end and is used to lock the base and the rotating shaft; a fitting block set screw, which is used to lock the fitting block and the rotating shaft; an adjusting screw, which is arranged on the fitting block and is used to adjust the position of the rotating shaft so that when the fitting portion fits the outer peripheral surface of the workpiece to be measured, the axial direction of the rotating shaft is parallel to the axial direction of the workpiece to be measured. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it; although the present application is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A level measuring device, characterized in that: include: a base, the base comprising a first end and a second end opposite to the first end, wherein the first end defines a measuring surface and the second end defines a central axis parallel to the measuring surface; A bonding block, the bonding block includes a third end and a fourth end opposite to the third end, the third end is rotatably connected to the second end so that the bonding block can rotate around the central axis, and the bonding block defines a bonding portion at the fourth end for bonding a workpiece to be measured, and the bonding portion is constructed so that when bonding to the outer peripheral surface of the workpiece to be measured, the central axis is parallel to the axial direction of the workpiece to be measured.

2. The level measuring device according to claim 1, characterized in that: The fitting portion defines a fitting curved surface, and the curvature of the fitting curved surface is consistent with the curvature of the outer peripheral surface of the workpiece to be measured.

3. The level measuring device according to claim 1, characterized in that: The fitting portion defines two fitting planes, and the two fitting planes are configured to be tangent to an outer peripheral surface of the workpiece to be measured when the fitting portion fits the workpiece to be measured.

4. The level measuring device according to any one of claims 1 to 3, characterized in that: At least one first liquid bubble is arranged on the measuring surface, and the at least one first liquid bubble is used to measure the horizontality of the measuring surface in a direction perpendicular to the central axis.

5. The level measuring device according to claim 4, characterized in that: A level measuring instrument is arranged on the measuring surface, and the level measuring instrument is used to measure the levelness of the measuring surface in a direction parallel to the central axis.

6. The level measuring device according to any one of claims 1 to 3, characterized in that: The third end portion is rotatably connected to the second end portion via a rotating shaft, wherein an axial direction of the rotating shaft coincides with the central axis.

7. The level measuring device according to claim 6, characterized in that: It also includes a base fixing screw, which is arranged at the first end and is used to lock the base and the rotating shaft.

8. The level measuring device according to claim 6, characterized in that: It also includes a fitting block fixing screw, and the fitting block fixing screw is used to lock the fitting block and the rotating shaft.

9. The level measuring device according to claim 7, characterized in that: It also includes an adjusting screw, which is arranged on the fitting block and is used to adjust the position of the rotating shaft so that when the fitting portion fits the outer peripheral surface of the workpiece to be measured, the axial direction of the rotating shaft is parallel to the axial direction of the workpiece to be measured.

10. The level measuring device according to claim 5, characterized in that: The level measuring instrument is a second liquid bubble with a scale.

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