Micrometer

Abstract

The utility model provides a micrometer, and belongs to the technical field of measuring tools. The micrometer comprises a frame body, a sphere, a measuring anvil and a micrometric screw. The frame body is provided with a first connecting column and a second connecting column which are oppositely arranged, and a guide groove is formed in the side, facing the second connecting column, of the first connecting column. The ball body is accommodated in the guide groove; the measuring anvil is at least partially contained in the guide groove and connected with the groove wall of the guide groove, and the side, facing the ball, of the measuring anvil abuts against the ball; the micrometric screw penetrates through the second connecting column and is movably connected with the second connecting column. According to the micrometer provided by the utility model, the ball body is arranged in the guide groove, so that the ball body can adaptively move in the guide groove under the action of pressure, single-point contact is formed between the ball body and one side, facing the ball body, of the measuring anvil, and the measuring anvil is rapidly positioned and automatically leveled through single-point support of the micrometric screw and the steel ball; the assembling process of the micrometer is simplified, the assembling efficiency is improved, and the cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a micrometer. Background Art

[0002] The standard requirement for the parallelism of the measuring surfaces of a micrometer is not more than 0.002. In the current process, after the measuring surface of the anvil and the measuring surface of the micrometer screw are fitted, they are bonded firmly, and then the anvil is bonded to the frame. After the anvil is firmly bonded to the frame, the glue on the surfaces of the anvil and the micrometer screw is removed. Such direct bonding is likely to cause deviations during the installation process, affecting the parallelism of the measuring surfaces, and the two bonding operations are rather cumbersome and the efficiency is low. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a micrometer.

[0004] The utility model provides the following technical solution: A micrometer, comprising:

[0005] A frame body having oppositely arranged first and second connecting columns, and a guiding groove is provided on a side of the first connecting column facing the second connecting column;

[0006] A sphere received in the guiding groove;

[0007] An anvil, at least partially received in the guiding groove and connected to the groove wall of the guiding groove, and a side of the anvil facing the sphere abuts against the sphere;

[0008] A micrometer screw passing through the second connecting column and movably connected to the second connecting column.

[0009] In some embodiments, the micrometer screw is connected to the inner wall of the guiding groove through an adhesive layer.

[0010] In some embodiments, a first measuring surface is provided on a side of the anvil facing the micrometer screw, and a second measuring surface is provided on a side of the micrometer screw facing the anvil, and the first measuring surface is parallel to the second measuring surface.

[0011] In some embodiments, along the axial direction of the micrometer screw, the projection of the first measuring surface on the plane where the second measuring surface is located coincides with the second measuring surface.

[0012] In some embodiments, the anvil and the guiding groove are coaxially arranged, and the axis of the anvil coincides with the axis of the micrometer screw.

[0013] In some embodiments, a hemispherical groove is provided at the bottom of the guiding groove, the opening of the hemispherical groove faces the opening of the guiding groove, and the axis of the hemispherical groove coincides with the axis of the guiding groove.

[0014] In some embodiments, the frame body includes a connecting seat, and the first connecting column and the second connecting column are arranged at two ends of the connecting seat at intervals, so as to define an accommodating space through the first connecting column, the second connecting column and the connecting seat.

[0015] In some embodiments, a brake handle is provided on one side of the second connecting column.

[0016] In some embodiments, a sleeve and a differential barrel are provided on the side of the second connecting column away from the micrometer screw;

[0017] One end of the sleeve is connected to the second connecting column, and the differential barrel is rotatably sleeved on the other end of the sleeve.

[0018] In some embodiments, a force measuring knob is provided at the end of the differential barrel away from the second connecting column, and the force measuring knob is rotatably connected to the micrometer screw.

[0019] The embodiments of the present invention have the following advantages: By arranging a sphere in the guiding groove, the sphere can adaptively move in the guiding groove under the action of pressure, so that a single-point contact is formed between the sphere and the side of the anvil facing the sphere. The anvil is quickly positioned and automatically leveled through the single-point support of the micrometer screw and the steel ball, and then the anvil is fixedly connected to the groove wall of the guiding groove, thereby ensuring the parallelism between the side of the anvil facing the micrometer screw and the side of the micrometer screw facing the anvil. This not only simplifies the assembly process of the micrometer, improves the assembly efficiency, but also can effectively reduce costs.

[0020] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 Shows a structural schematic diagram of a perspective view of a micrometer provided by some embodiments of the present invention.

[0023] MAIN ELEMENT SYMBOL DESCRIPTION:

[0024] 100 - Frame; 110 - First connecting column; 120 - Second connecting column; 111 - Guide groove; 200 - Sphere; 300 - Anvil; 400 - Micrometer screw; 310 - First measuring surface; 410 - Second measuring surface; 130 - Connecting seat; 113 - Hemispherical groove; 500 - Brake handle; 600 - Sleeve; 700 - Thimble; 800 - Force measuring knob; 900 - Accommodating space. Detailed implementation manner

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0027] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication 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 present utility model can be understood according to specific circumstances.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of the template herein are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] As Figure 1 shown, some embodiments of the present utility model provide a micrometer, which is mainly applied to simplify the installation process of the micrometer, improve the installation efficiency of the micrometer, and reduce the production cost.

[0031] The micrometer includes a frame body 100, a sphere 200, an anvil 300, and a micrometer screw 400.

[0032] Specifically, in this embodiment, the frame body 100 has a first connecting column 110 and a second connecting column 120 which are oppositely arranged. The first connecting column 110 and the second connecting column 120 are spaced apart, and a guiding groove 111 is provided on one side of the first connecting column 110 facing the second connecting column 120. The notch of the guiding groove 111 faces the second connecting column 120.

[0033] Among them, the shape of the guiding groove 111 can be any one of a hemispherical shape, a cylindrical shape, a conical shape, or a polygonal prism shape, or a combination of two or more of them, and can be specifically set according to actual situations.

[0034] The sphere 200 is received in the guiding groove 111, and the sphere 200 abuts against the bottom wall of the guiding groove 111. It should be noted that, in this embodiment, the bottom wall of the guiding groove 111 refers to the side of the guiding groove 111 facing the second connecting column 120.

[0035] One end of the anvil 300 is at least partially received in the guiding groove 111, and one end of the anvil 300 disposed in the guiding groove 111 is connected to the groove wall of the guiding groove 111 to improve the stability of the connection between the anvil 300 and the groove wall of the guiding groove 111.

[0036] Among them, the connection method between the anvil 300 and the groove wall of the guiding groove 111 includes any one of bonding, clamping, magnetic attraction connection, screw connection, or bolt connection, and can be specifically set according to actual situations.

[0037] In this embodiment, the anvil 300 is connected to the groove wall of the guide groove 111 by bonding to ensure the stability of the connection between the anvil 300 and the groove wall of the guide groove 111 while improving the flexibility and convenience of the connection between the anvil 300 and the groove wall of the guide groove 111, so as to facilitate the adjustment of the relative position between the anvil 300 and the guide groove 111 during the installation process and improve the assembly quality.

[0038] Specifically, the side of the anvil 300 facing the sphere 200 abuts against the sphere 200, and the bottom of the guide groove 111 and the side of the anvil 300 facing the sphere 200 form a limiting and fixing effect on the sphere 200 to ensure the stability of the sphere 200 in the guide groove 111. At the same time, the anvil 300 and the groove wall of the guide groove 111 abut against the sphere 200 respectively, so that the center of the sphere 200, the axis of the guide groove 111 and the axis of the anvil 300 coincide with each other under the action of pressure.

[0039] The micrometer screw 400 is passed through the second connecting column 120 , and the micrometer screw 400 is movably connected to the second connecting column 120 , so that the micrometer screw 400 can move along its own axial direction.

[0040] Specifically, during the process of the micrometer screw 400 moving toward the anvil 300, when the side of the micrometer screw 400 facing the anvil 300 abuts against the side of the anvil 300 facing away from the sphere 200, the micrometer screw 400 provides a pressure on the anvil 300 to move toward the sphere 200, so that the sphere 200 moves at the bottom of the guide groove 111 under the action of the pressure.

[0041] When the center point of the sphere 200 moves to the axis of the anvil 300, at this time, the axis of the anvil 300 and the micrometer screw 400 are coaxial, that is, the direction of the force exerted on the sphere 200 by the bottom of the guide groove 111 coincides with the direction of the force exerted by the anvil 300 on the sphere 200. At this time, the sphere 200 remains in a stable and stationary state in the guide groove 111, so as to adjust the anvil 300 and the micrometer screw 400 to be coaxial.

[0042] By arranging the sphere 200 in the guiding groove 111, the sphere 200 can adaptively move in the guiding groove 111 under the action of pressure, so that the sphere 200 forms a single-point contact with the side of the anvil 300 facing the sphere 200. The anvil 300 is quickly positioned and automatically leveled through the micrometer screw 400 and the single-point support of the steel ball, and then the anvil 300 is fixedly connected to the groove wall of the guiding groove 111, thereby ensuring the parallelism between the side of the anvil 300 facing the micrometer screw 400 and the side of the micrometer screw 400 facing the anvil 300. This not only simplifies the assembly process of the micrometer, improves the assembly efficiency, but also can effectively reduce the cost.

[0043] As Figure 1 shown, in some embodiments of the present invention, the anvil 300 is connected to the inner wall of the guiding groove 111 through an adhesive layer.

[0044] Among them, the adhesive layer is formed by the adhesive between the groove wall of the guiding groove 111 and the anvil 300.

[0045] Specifically, an adhesive is coated on the surface of one end of the anvil 300 facing the guiding groove 111, and the anvil 300 coated with the adhesive is inserted into the guiding groove 111, and the relative position between the anvil 300 and the guiding groove 111 is adjusted. When the adhesive cures, an adhesive layer is formed between the anvil 300 and the groove wall of the guiding groove 111 to fixedly connect the anvil 300 to the groove wall of the guiding groove 111, thereby fixedly connecting the anvil 300 to the first connecting column 110 to improve the stability of the connection between the anvil 300 and the first connecting column 110.

[0046] As Figure 1 shown, in some embodiments of the present invention, a first measuring surface 310 is provided on the side of the anvil 300 facing the micrometer screw 400, and a second measuring surface 410 is provided on the side of the micrometer screw 400 facing the anvil 300, and the first measuring surface 310 is parallel to the second measuring surface 410.

[0047] It can be understood that when the micrometer screw 400 moves in the direction close to the anvil 300, the first measuring surface 310 can be completely attached to the second measuring surface 410, thereby ensuring the parallelism between the first measuring surface 310 and the second measuring surface 410 and improving the measurement accuracy and accuracy of the micrometer for an object.

[0048] As Figure 1As shown, in some embodiments of the present utility model, the anvil 300 and the guiding groove 111 are coaxially arranged, the axis of the anvil 300 coincides with the axis of the micrometer screw 400, and the moving direction of the micrometer screw 400 is parallel to the axis of the micrometer screw 400, so as to ensure that the axis of the micrometer screw 400 always coincides with the axis of the anvil 300 during the movement of the micrometer screw 400, improve the stability of the micrometer screw 400 during the movement, and ensure the accuracy and measurement precision of the length measurement of the object to be measured.

[0049] As Figure 1 shown, in some embodiments of the present utility model, the frame body 100 includes a connecting seat 130, the first connecting column 110 and the second connecting column 120 are arranged at both ends of the connecting seat 130 at intervals, so as to define an accommodating space 900 through the first connecting column 110, the second connecting column 120 and the connecting seat 130, so that the object to be measured can be placed in the installation space, and the anvil 300 and the micrometer screw 400 are respectively abutted against both sides of the object to be measured and the object to be measured is fixed, so as to ensure the stability of the object to be measured between the anvil 300 and the micrometer screw 400.

[0050] Among them, the connection methods of the first connecting column 110 and the second connecting column 120 to the connecting seat 130 include any one of snap connection, bonding, bolt connection or integral molding.

[0051] In this embodiment, the first connecting column 110, the second connecting column 120 and the connecting seat 130 are integrally connected and formed to form the frame body 100, so as to improve the overall strength and stability of the frame body 100.

[0052] As Figure 1 shown, in some embodiments of the present utility model, a hemispherical groove 113 is provided at the bottom of the guiding groove 111, the opening of the hemispherical groove 113 faces the opening of the guiding groove 111, and the axis of the hemispherical groove 113 coincides with the axis of the guiding groove 111, so as to provide guiding and limiting effects on the sphere 200 through the hemispherical groove 113, so as to ensure that the center point of the sphere 200 can move to the axis of the anvil 300 under the extrusion action of the anvil 300, thereby improving the installation efficiency.

[0053] Furthermore, it should be noted that the radius corresponding to the hemispherical groove 113 is greater than or equal to the radius of the sphere 200, so that the sphere 200 can form a point contact or a surface contact with the bottom of the hemispherical groove 113, ensuring the accuracy of positioning the sphere 200, thereby enabling rapid positioning and automatic leveling between the first measuring surface 310 and the second measuring surface 410. This can not only simplify the assembly process of the micrometer but also improve the installation efficiency of the micrometer.

[0054] Optionally, in some embodiments, a tapered groove is provided at the bottom of the guiding groove 111. The opening of the tapered groove faces the opening of the guiding groove 111, and the axis of the tapered groove coincides with the axis of the guiding groove 111, so as to form a guiding and limiting effect on the sphere 200 through the groove wall of the tapered groove, ensuring the accuracy of positioning the sphere 200.

[0055] In addition, in some embodiments of the present invention, along the axial direction of the micrometer screw 400, the projection of the first measuring surface 310 on the plane where the second measuring surface 410 is located coincides with the second measuring surface 410.

[0056] As Figure 1 shown, in some embodiments of the present invention, a brake handle 500 is provided on one side of the second connecting column 120, so that the user can fix the micrometer screw 400 through the brake handle 500 and can form a limiting and fixing effect on the micrometer screw 400 to ensure the stability of the micrometer screw 400 and the accuracy of reading and measurement.

[0057] In addition, the resistance of the micrometer screw 400 can also be reduced by controlling the brake handle 500 to ensure the smoothness of the micrometer screw 400 during movement and improve the measurement efficiency of objects.

[0058] As Figure 1 shown, in some embodiments of the present invention, a sleeve 600 and a thimble 700 are provided on the side of the second connecting column 120 facing away from the micrometer screw 400.

[0059] It should be noted that in this embodiment, the axes of the fixed table, the thimble 700, and the micrometer screw 400 coincide to improve the accuracy of adjustment.

[0060] Among them, one end of the sleeve 600 is connected to the second connecting column 120, and the thimble 700 is rotatably sleeved on the other end of the sleeve 600. Specifically, when the first measuring surface 310 is in contact with the second measuring surface 410, the zero position of the sleeve 600 coincides with the zero position of the thimble 700 to adjust the micrometer to be qualified.

[0061] As Figure 1As shown, in some embodiments of the present utility model, one end of the differential cylinder 700 facing away from the second connecting column 120 is provided with a force measuring knob 800, and the force measuring knob 800 is rotationally connected to the micrometer screw 400.

[0062] It should be noted that the rotation of the differential cylinder 700 can drive the micrometer screw 400 to move significantly, and the rotation of the force measuring knob 800 can drive the micrometer screw 400 to move slightly, so as to use the fixed scale and the movable scale to cooperate for precise measurement of dimensions.

[0063] In addition, anti-slip lines are also provided on the outer surface of the force measuring knob 800 to achieve the function of anti-slip during rotation and ensure the smoothness of the rotation adjustment process.

[0064] In all the examples shown and described here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0065] It should be noted that similar reference numerals and letters denote 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 subsequent drawings.

[0066] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A micrometer, characterized in that, include: The frame body has a first connecting column and a second connecting column which are arranged opposite to each other, and a guide groove is provided on a side of the first connecting column facing the second connecting column; a ball, received in the guide groove; An anvil is at least partially received in the guide groove and connected to the groove wall of the guide groove, and the side of the anvil facing the sphere abuts against the sphere; The micrometer screw is passed through the second connecting column and is movably connected to the second connecting column.

2. The micrometer according to claim 1, characterized in that, The micrometer screw is connected to the inner wall of the guide groove through an adhesive layer.

3. The micrometer according to claim 1, characterized in that, A first measuring surface is disposed on a side of the anvil facing the micrometer screw, and a second measuring surface is disposed on a side of the micrometer screw facing the anvil. The first measuring surface is parallel to the second measuring surface.

4. The micrometer according to claim 3, characterized in that, Along the axial direction of the micrometer screw, the projection of the first measuring surface on the plane where the second measuring surface is located coincides with the second measuring surface.

5. The micrometer according to claim 1, wherein The anvil and the guide groove are coaxially arranged, and the axis of the anvil coincides with the axis of the micrometer screw.

6. The micrometer according to claim 5, characterized in that, A hemispherical groove is provided at the groove bottom of the guide groove, the groove opening of the hemispherical groove faces the groove opening of the guide groove, and the axis of the hemispherical groove coincides with the axis of the guide groove.

7. The micrometer according to claim 1, characterized in that, The frame body includes a connection seat, and the first connection column and the second connection column are arranged at two ends of the connection seat at intervals, so that a receiving space is defined by the first connection column, the second connection column and the connection seat.

8. The micrometer according to any one of claims 1 to 7, characterized in that, A brake handle is provided on one side of the second connecting column.

9. The micrometer according to claim 8, characterized in that, A sleeve and a differential cylinder are provided on a side of the second connecting column away from the micrometer screw; One end of the sleeve is connected to the second connecting column, and the differential cylinder is rotatably sleeved on the other end of the sleeve.

10. The micrometer according to claim 9, characterized in that, A force measuring knob is provided at one end of the differential cylinder away from the second connecting column, and the force measuring knob is rotatably connected to the micrometer screw.

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