Multifunctional taper hole measuring tool

Abstract

The utility model discloses a multifunctional taper hole measuring tool which comprises an isosceles trapezoid measuring scale and a main handle connected with the long bottom edge of the isosceles trapezoid measuring scale, and the short bottom edge of the isosceles trapezoid measuring scale is provided with a go-no go gauge bayonet. The waist of the isosceles trapezoid measuring scale is provided with first scales for indicating the outer diameter size of the chamfered round hole, the included angle between the waist of the isosceles trapezoid measuring scale and the long bottom edge is alpha, and the reading of the first scales is the outer diameter size value of the chamfered round hole converted according to the included angle alpha; the device is simple in structure, low in manufacturing cost and easy and convenient to measure and operate, the outer diameter size of the chamfered round hole can be visually read from the first scales, conversion is not needed, therefore, the measuring efficiency is improved, various sizes can be measured, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to in the technical field of measuring instrument, especially, relate to a multifunctional conical hole measuring tool. BACKGROUND

[0002] In machining, the hole is often chamfered, that is, the end of the hole is chamfered to remove burrs and flash generated by machining, facilitate assembly and connection between workpieces, and avoid stress concentration.

[0003] After chamfering, the end of the hole forms a conical hole, and the size of the chamfer and the outer diameter are usually difficult to measure. The existing measurement method is mainly as follows: a special chamfer gauge is used to measure the size of the chamfer, and then the outer diameter of the chamfered hole is calculated. This method cannot eliminate the error caused by uneven chamfering, has relatively low reliability, and needs to be calculated after measurement. The outer diameter of the hole cannot be directly read, and the measurement efficiency is low. Electronic measuring equipment such as a profilometer can also be used for measurement, but the equipment itself requires high investment and high quality of operators, and is difficult to popularize on a large scale. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of multifunctional conical hole measuring tool to solve the technical problems of relatively low reliability and low measurement efficiency of the outer diameter size of the existing conical hole measuring tool.

[0005] According to one aspect of the utility model, a multifunctional conical hole measuring tool is provided, comprising an isosceles trapezoidal measuring scale and a main handle connected to the long base of the isosceles trapezoidal measuring scale. A through-stop gauge socket is provided on the short base of the isosceles trapezoidal measuring scale. A first scale for indicating the outer diameter size of the chamfered circular hole is provided on the waist of the isosceles trapezoidal measuring scale. The angle between the waist and the long base of the isosceles trapezoidal measuring scale is α. The reading of the first scale is the outer diameter size value of the chamfered circular hole calculated according to the angle α.

[0006] Further, the through-stop gauge socket includes a side edge perpendicular to the short base of the isosceles trapezoidal measuring scale and at least one determination edge parallel to the side edge.

[0007] Further, a first avoidance slot is provided on the end of the side edge away from the opening of the through-stop gauge socket and on the end of the determination edge away from the opening of the through-stop gauge socket.

[0008] Further, an activity block parallel to the side edge is provided on the side edge and / or the determination edge. The activity block is connected to the isosceles trapezoidal measuring scale through a sliding positioning mechanism, so that the activity block can move relative to the side edge in a direction perpendicular to the side edge and be positioned after moving.

[0009] Further, the sliding positioning mechanism comprises a sliding rail arranged on the isosceles trapezoidal measuring scale, a sliding rod connected with the sliding rail and used for connecting the movable block, and a locking screw used for positioning the sliding rod, and a second scale for indicating the extension amount of the sliding rod relative to the edge is arranged on the sliding rod.

[0010] Further, the main handle is connected with the long base of the isosceles trapezoidal measuring scale, and a third scale for measuring the chamfer size is arranged on the main handle and the long base of the isosceles trapezoidal measuring scale.

[0011] Further, a second avoiding groove is arranged at the connection between the main handle and the long base of the isosceles trapezoidal measuring scale.

[0012] Further, the included angle α is 30°-60°.

[0013] Further, a through hole is arranged on the main handle.

[0014] Further, a level is arranged on the isosceles trapezoidal measuring scale.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a multifunctional conical hole measuring tool, the included angle of the waist of the isosceles trapezoidal measuring scale and the long base is alpha, the reading of the first scale is the outer diameter size numerical value after the conversion of the chamfer of the round hole according to alpha, when using, the short base of the waist trapezoidal measuring scale is inserted into the round hole on the workpiece to be measured, makes the waist trapezoidal measuring scale and the chamfer inclined surface of the round hole fit, and the upper surface of the workpiece to be measured is the outer diameter size after the chamfer of the round hole in the reading corresponding to the first scale, the through stop gauge socket arranged on the short base of the waist trapezoidal measuring scale not only can reduce the overall gravity of the measuring tool, but also can be used for the outer diameter of the circular tube and the plate material thickness detection, and the structure is simple, the manufacturing cost is low, and the measurement operation is simple, can not only directly read the outer diameter size after the chamfer of the round hole from the first scale, and need not be converted, thereby improving the efficiency of measurement, and can measure various sizes, and the application range is wide.

[0017] In addition to the objects, features, and advantages described above, the utility model has other objects, features and advantages. Below, referring to the drawings, the utility model will be further explained in detail. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0019] Figure 1is a structural schematic view of the multifunctional conical hole measuring tool of the preferred embodiment of the utility model;

[0020] Figure 2 is a structural schematic view of the go-no-go gauge bayonet of the preferred embodiment of the utility model;

[0021] Figure 3 is a structural schematic view of the movable block of the preferred embodiment of the utility model;

[0022] Figure 4 is a structural schematic view of the sliding positioning mechanism of the preferred embodiment of the utility model.

[0023] Legend:

[0024] 1, main handle; 11, third scale; 12, second avoiding groove; 13, through hole; 2, isosceles trapezoidal measuring scale; 21, go-no-go gauge bayonet; 211, edge; 212, determination edge; 22, first scale; 23, movable block; 24, sliding positioning mechanism; 241, slide rail; 242, slide rod; 243, locking screw; 244, second scale; 25, first avoiding groove; 26, circular arc guide edge; 27, round chamfer; 3, level. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.

[0026] Please see Figures 1 to 4 , the multifunctional conical hole measuring tool of the embodiment, including isosceles trapezoidal measuring scale 2 and the main handle 1 connected with the long bottom edge of isosceles trapezoidal measuring scale 2, the short bottom edge of isosceles trapezoidal measuring scale 2 is set with go-no-go gauge bayonet 21, the waist of isosceles trapezoidal measuring scale 2 is set with first scale 22 for indicating the outer diameter size after the chamfer of circular hole, the angle of the waist and long bottom edge of isosceles trapezoidal measuring scale 2 is α, the reading of first scale 22 is the outer diameter size numerical value after the chamfer of circular hole according to the angle α conversion.

[0027] The multifunctional taper hole measuring tool of the embodiment, the angle between the leg and the long base of the isosceles trapezoidal measuring scale 2 is α, the reading of the first scale 22 is the converted outer diameter size value of the chamfered hole, in use, the short base of the isosceles trapezoidal measuring scale 2 is inserted into the hole on the workpiece to be measured, so that the leg of the isosceles trapezoidal measuring scale 2 is in contact with the chamfered surface of the hole, and the upper surface of the workpiece to be measured is in contact with the first scale 22, and the outer diameter size of the chamfered hole is read on the first scale 22; the through and stop gauge socket 21 provided on the short base of the isosceles trapezoidal measuring scale 2 not only reduces the overall weight of the measuring tool, but also can be used for the outer diameter of the pipe and the thickness detection of the plate material, which has the advantages of simple structure, low manufacturing cost, simple measurement operation, intuitive reading of the outer diameter size of the chamfered hole on the first scale 22, no need for conversion, high measurement efficiency, wide application range, etc. Optionally, the opening of the through and stop gauge socket 21 is provided with a circular arc guide edge 26, which can avoid scratching the workpiece to be measured and guide the workpiece to be measured into the through and stop gauge socket 21. Optionally, a round chamfer 27 is provided at the connection between the long base and the leg of the isosceles trapezoidal measuring scale 2, which can avoid scratching the workpiece to be measured and avoid sharp corners from hurting the operator.

[0028] As shown in Figure 2 , in the embodiment, the through and stop gauge socket 21 includes a side 211 perpendicular to the short base of the isosceles trapezoidal measuring scale 2 and a determination edge 212 parallel to the side 211, which can be used for the outer diameter of the pipe and the thickness detection of the plate material.

[0029] As shown in Figure 2 , in the embodiment, the through and stop gauge socket 21 includes a side 211 perpendicular to the short base of the isosceles trapezoidal measuring scale 2 and two determination edges 212 parallel to the side 211, and the step difference between the two determination edges 212 is the size tolerance of the outer diameter of the pipe and the thickness of the plate material; optionally, the number of determination edges 212 can be three, four or more, which can be applied to the outer diameter of the pipe and the thickness detection of the plate material of multiple sizes.

[0030] As shown in Figure 3 and Figure 4 , in the embodiment, the side 211 away from the opening of the through and stop gauge socket 21 and the determination edge 212 away from the opening of the through and stop gauge socket 21 are respectively provided with a first avoiding groove 25; which can effectively avoid scratching the inner wall of the through and stop gauge socket 21 by sharp workpieces.

[0031] As shown in Figure 3 and Figure 4As shown, in the embodiment, the side 211 is provided with a movable block 23 arranged in parallel with the side 211, the movable block 23 is connected with the isosceles trapezoidal measuring scale 2 through a sliding positioning mechanism 24, so that the movable block 23 can move relative to the side 211 in a direction perpendicular to the side 211 and be positioned after moving, and by adjusting the distance between the movable block 23 and the side 211, the outer diameter of the pipe and the thickness of the plate material of different sizes can be detected. Alternatively, the side 211 is provided with a receiving groove, so that when the movable block 23 abuts against the side 211, the side 211 and the movable block 23 are flush.

[0032] As shown in Figure 3 and Figure 4 In the embodiment, the determination edge 212 is provided with a movable block 23 arranged in parallel with the side 211, by adjusting the distance between the movable block 23 and the side 211, the outer diameter of the pipe and the thickness of the plate material of different sizes can be detected, and the size tolerance of the pipe outer diameter and the plate material thickness can also be adjusted. Alternatively, the determination edge 212 is provided with a receiving groove, so that when the movable block 23 abuts against the determination edge 212, the determination edge 212 and the movable block 23 are flush.

[0033] As shown in Figure 3 and Figure 4 In the embodiment, the side 211 and the determination edge 212 are respectively provided with a movable block 23 arranged in parallel with the side 211, the movable blocks 23 on the side 211 and the determination edge 212 can adjust the position respectively, and multiple groups of different sizes can be adjusted.

[0034] As shown in Figure 3 and Figure 4As shown in the drawings, in the embodiment, the sliding positioning mechanism 24 comprises a sliding rail 241 arranged on the isosceles trapezoidal measuring scale 2, a sliding rod 242 in sliding connection with the sliding rail 241 and used for connecting the movable block 23, and a locking screw 243 used for positioning the sliding rod 242, the sliding rod 242 is arranged with a second scale 244 used for indicating the extension amount of the sliding rod 242 relative to the edge 211, the sliding rail 241 is installed on the isosceles trapezoidal measuring scale 2 in a direction perpendicular to the edge 211, the locking screw 243 is loosened, the sliding rod 242 can freely slide along the sliding rail 241, after the movable block 23 is moved to a specified position, the locking screw 243 is tightened to fix the relative position of the movable block 23 and the edge 211, the structure is simple, and the operation is simple. Alternatively, the sliding rod 242 is two and is a cylinder, one end of the sliding rod 242 is fixedly connected with the movable block 23, the two sliding rods 242 have good supporting effect and can avoid rotation of the movable block 23. Alternatively, the sliding rod 242 is one and is a polygonal prism, one end of the sliding rod 242 is fixedly connected with the movable block 23, rotation of the movable block 23 can be avoided, and the adjustment efficiency is high. Alternatively, the locking screw 243 is arranged on the sliding rail 241, and the positioning of the sliding rod 242 is realized by abutting the locking screw 243 against the sliding rod 242. Alternatively, the locking screw 243 is arranged on the sliding rod 242, and the positioning of the sliding rod 242 is realized by abutting the locking screw 243 against the isosceles trapezoidal measuring scale 2.

[0035] As shown in the drawings, Figure 3 In the embodiment, the main handle 1 is connected with the long bottom edge of the isosceles trapezoidal measuring scale 2 perpendicularly, the main handle 1 and the long bottom edge of the isosceles trapezoidal measuring scale 2 are arranged with a third scale 11 used for measuring the chamfer size; the main handle 1 is close to the inner wall side of the hole, the long bottom edge of the isosceles trapezoidal measuring scale 2 is placed on the hole surface, and chamfer reading can be performed, the structure is simple, and the measurement is convenient.

[0036] As shown in the drawings, Figure 4 In the embodiment, a second avoiding groove 12 is arranged at the connection position of the main handle 1 and the long bottom edge of the isosceles trapezoidal measuring scale 2; the connection position of the main handle 1 and the isosceles trapezoidal measuring scale 2 can be effectively avoided from being scratched by a sharp workpiece.

[0037] In the embodiment, the value range of the included angle α is 30°-60°. The first scale 22 is marked on the leg of the isosceles trapezoidal measuring scale 2 according to the angle value of α, and the outer diameter size of the round hole after chamfering can be directly read out, which is intuitive and efficient. Alternatively, α is 45°, and the main handle 1 can be matched with the hole chamfered by a C angle.

[0038] As shown in the drawings, Figure 3As shown in the drawings, in the embodiment, the main handle 1 is provided with a through hole 13; on the one hand, the through hole 13 can not only reduce the weight of the whole measuring tool, but also can be used as a hanging hole to facilitate storage and daily carrying; on the other hand, the through hole 13 can also be used as a through and stop gauge aperture, by setting through holes 13 with different hole diameters, detection of different sizes can be realized.

[0039] As shown in the drawings, Figure 4 and Figure 2 Figure 2 Figure 2 Figure 3 Figure 4 As shown in the drawings, in the embodiment, the isosceles trapezoidal measuring scale 2 is provided with a level 3, when in use, the short base or the long base of the isosceles trapezoidal measuring scale 2 is abutted against the surface of the workpiece, the flatness of the surface of the workpiece can be detected, and whether the workpiece is placed horizontally can also be detected.

[0040] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional taper hole measuring tool, characterized in that, it comprises an isosceles trapezoidal measuring scale (2) and a main handle (1) connected with the long base of the isosceles trapezoidal measuring scale (2), the short base of the isosceles trapezoidal measuring scale (2) is provided with a pass-stop gauge socket (21), the leg of the isosceles trapezoidal measuring scale (2) is provided with a first scale (22) for indicating the outer diameter size of a round hole after chamfering, the included angle between the leg and the long base of the isosceles trapezoidal measuring scale (2) is α, and the reading of the first scale (22) is the numerical value of the outer diameter size of the round hole after chamfering converted according to the included angle α. 2.The multifunctional taper hole measuring tool according to claim 1, characterized in that, the pass-stop gauge socket (21) comprises a side edge (211) perpendicular to the short base of the isosceles trapezoidal measuring scale (2) and at least one judgment edge (212) arranged in parallel with the side edge (211). 3.The multifunctional taper hole measuring tool according to claim 2, characterized in that, the side edge (211) is provided with a first avoiding groove (25) at the end away from the opening of the pass-stop gauge socket (21), and the judgment edge (212) is provided with a first avoiding groove (25) at the end away from the opening of the pass-stop gauge socket (21). 4.The multifunctional taper hole measuring tool according to claim 2 or 3, characterized in that, the side edge (211) and / or the judgment edge (212) is provided with a movable block (23) arranged in parallel with the side edge (211), and the movable block (23) is connected with the isosceles trapezoidal measuring scale (2) through a sliding positioning mechanism (24) so that the movable block (23) can move relative to the side edge (211) in a direction perpendicular to the side edge (211) and be positioned after moving. 5.The multifunctional taper hole measuring tool according to claim 4, characterized in that, the sliding positioning mechanism (24) comprises a slide rail (241) arranged on the isosceles trapezoidal measuring scale (2), a slide rod (242) connected with the slide rail (241) and used for connecting the movable block (23), and a locking screw (243) used for positioning the slide rod (242), and the slide rod (242) is provided with a second scale (244) for indicating the extension amount of the slide rod (242) relative to the side edge (211). 6.The multifunctional taper hole measuring tool according to claim 1, characterized in that, the main handle (1) is connected with the long base of the isosceles trapezoidal measuring scale (2) perpendicularly, and the main handle (1) and the long base of the isosceles trapezoidal measuring scale (2) are provided with a third scale (11) for measuring the chamfering size. 7.The multifunctional taper hole measuring tool according to claim 1, characterized in that, the main handle (1) is provided with a second avoiding groove (12) at the connection with the long base of the isosceles trapezoidal measuring scale (2). 8.The multifunctional taper hole measuring tool according to claim 1, characterized in that, the included angle α is in the range of 30°-60°. 9.The multifunctional taper hole measuring tool according to claim 1, characterized in that, The main handle (1) is provided with a through hole (13).

10. The multi-functional taper hole measuring tool according to claim 1, wherein, The isosceles trapezoidal measuring scale (2) is provided with a level (3).

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