A multifunctional high-precision measuring tool

Abstract

The present invention belongs to the field of mechanical manufacturing, and particularly relates to a multifunctional high-precision measuring tool which can measure the size, roughness, inclination, cylindricity and other shape and position changes or errors thereof. The tool comprises a guide reference, a detection device, an optical device, a reading device and the like. The measured object is moved or rotated. The detection device rotates around a fulcrum, and the other end has a detection head in contact with the measured part. The light and light spot change with the rotation of the detection device. The reading device displays the light spot position or the data after transformation thereof. When the length of the light is greater than the length of the workpiece, the features of the measured part can be enlarged and displayed. In one detection, the distance between the light emitter and the light receiver can remain unchanged, the light spot is stable, and the measuring precision is high. The shape and appearance of the measured part can be fitted through computer technology. The present invention can be used for product detection or production process, scientific experiment monitoring of deformation, wear and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical manufacturing hole processing and detection, and particularly relates to a multifunctional high-precision measuring tool. BACKGROUND

[0002] The measuring tools frequently used in mechanical manufacturing are angle ruler, caliper, smooth gauge, complete gauge block, micrometer and vernier caliper, etc. In addition to mechanical measuring tools, there are also a batch of optical measuring tools. The projection instrument, tool microscope and optical micrometer are applied in mechanical manufacturing. The pneumatic gauge is a measuring tool suitable for use in mass production. The electrical measuring tool utilizes the inductance principle. The coordinate measuring machine with digital display of measuring results is applied more and more widely. The coordinate measuring machine combined with electronic computer is promoted in the process of mechanical manufacturing, and the number of the coordinate measuring machines is increasing. There also appear various special measuring tools controlled by computer. In the prior art, a measuring device can only measure single or a few quality indexes. The multifunctional measuring device is less. The multifunctional measuring tool with simple structure, low price and convenient use is even less. SUMMARY

[0003] The purpose of the present application is to provide a measuring tool with higher precision. The objects to be measured or monitored can be the size, shape, position or error of the product, or the deformation, wear and the like of the measured object in the production or experimental process.

[0004] The present application adopts the following innovative technical solutions.

[0005] 1. A multifunctional high-precision measuring tool comprises guiding reference, driving device, detecting device, optical device, supporting device and reading device, characterized in that the driving device or hand moves the measured object or the detecting device relative to the guiding reference; the detecting device rotates around the supporting point at one end of the detecting device, and the other end of the detecting device has a detecting head which contacts the measured part of the measured object; the light rays and light spots of the optical device change with the rotation of the detecting device; the reading device displays the position of the light spot or the information after transformation; the optical device has light emitter, light rays and light receiver, and the length of the light rays is greater than, less than or equal to the length of the measured object.

[0006] 2. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that the guiding reference has a guiding body, the driving device has a driving member, the detecting device has a detecting rod and a detecting head, and the reading device has a display; the detecting rod can rotate in space around a fulcrum, and the detecting head is located on the detecting rod and contacts the measured part of the measured object at its end; the detecting device or the measured object is driven by the driving member to translate along the guiding body; when the distance between the end of the detecting head and the guiding body changes, the detecting rod rotates accordingly; the light emitter is connected to the detecting rod, and the emitted light is directed to the light receiver; the change in the position of the detecting rod causes the change in the position of the light spot on the light emitter, the light, and the light receiver; and the display reflects the position of the light spot or the converted information thereof.

[0007] 3. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that the detecting device has a detecting rod and a detecting head, and the reading device has a display; the detecting rod can rotate in space around a fulcrum, and the detecting head is located on the detecting rod and contacts the measured part of the measured object at its end; the detecting device or the measured object rotates; the detecting rod rotates with the change of the detecting head; the light emitter is connected to the detecting rod, and the emitted light is directed to the light receiver; the change in the position of the detecting rod causes the change in the position of the light spot on the light emitter, the light, and the light receiver; and the display reflects the position of the light spot or the converted information thereof.

[0008] 4. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that the fulcrum of the rotating detecting device is located at any end of the measured workpiece, and the positions of other parts change with the position of the fulcrum; the guiding reference is a machine tool guide rail or other guiding object, and the driving device is a machine tool slide or other rotating object; the measured object is placed vertically or horizontally.

[0009] 5. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that the detecting device has a cylindrical pair or a spherical pair or a spherical bearing or other connecting structure at the rotating fulcrum part, and the other connecting structure enables the detecting rod to rotate.

[0010] 6. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that the detecting device has a gap adjustment mechanism at the rotating fulcrum.

[0011] 7. The multi-functional high-precision measuring tool according to the first innovation point, characterized in that when detecting the inner surface, if there is a through hole, the light passes through the inside of the hole or the outside of the hole.

[0012] 8. The multi-functional high-precision measuring tool according to the second or third innovation point, characterized in that the detecting rod is integral or split; the split detecting rod can be disassembled and assembled into an integral one after disassembly.

[0013] The above-mentioned innovative scheme is further explained below.

[0014] The detection device comprises a support 4, a rotating pair 5, a bracket 6, a light emitter 7, a light ray 8, a detection rod 9, a detection head 10, and a light receiver 11. The light receiver is provided with a photosensitive sensor, such as a PSD, to obtain high detection accuracy.

[0015] The measured object is placed vertically or horizontally. For the two different cases, the positions of other components should be adjusted accordingly. This is easy to understand.

[0016] During measurement, in the first case, the guide body is stationary, the measured workpiece is translated along the guide body, and the detection device does not translate along the guide body. This is explained in combination with the accompanying drawings of the specification Figure 1 . In the second case, the guide body is stationary, the measured workpiece is stationary, and the detection device translates left and right along the guide body. The same can be measured as in the first case. Figure 1 In the third case, the measured object 3 (a part with a hole) rotates around its axis, and the detection device does not translate left and right along the hole axis. The support 4 of the detection device is fixed. In combination with the prior art, the roundness and roughness of the hole or the outer circle can be measured. If the measured object 3 (a part with a hole) rotates around its axis while also moving axially, the cylindricity of the hole or the outer circle can also be measured. In combination with the prior art, the size of the hole or the outer circle, the runout, coaxiality, position, and other form and position errors of the hole or the outer circle relative to other surfaces can also be measured.

[0017] In the third case, the measured object 3 (a part with a hole) rotates around its axis, and the detection device does not translate left and right along the hole axis. The support 4 of the detection device is fixed. In combination with the prior art, the roundness and roughness of the hole or the outer circle can be measured. If the measured object 3 (a part with a hole) rotates around its axis while also moving axially, the cylindricity of the hole or the outer circle can also be measured. In combination with the prior art, the size of the hole or the outer circle, the runout, coaxiality, position, and other form and position errors of the hole or the outer circle relative to other surfaces can also be measured.

[0018] In the third case, the measured object 3 (a part with a hole) rotates around its axis, and the detection device does not translate left and right along the hole axis. The support 4 of the detection device is fixed. In combination with the prior art, the roundness and roughness of the hole or the outer circle can be measured. If the measured object 3 (a part with a hole) rotates around its axis while also moving axially, the cylindricity of the hole or the outer circle can also be measured. In combination with the prior art, the size of the hole or the outer circle, the runout, coaxiality, position, and other form and position errors of the hole or the outer circle relative to other surfaces can also be measured. Figure 2 . In combination with the prior art, the roundness and roughness of the hole or the outer circle can be measured. If the measured object 3 (a part with a hole) rotates around its axis while also moving axially, the cylindricity of the hole or the outer circle can also be measured. In combination with the prior art, the size of the hole or the outer circle, the runout, coaxiality, position, and other form and position errors of the hole or the outer circle relative to other surfaces can also be measured.

[0019] In the fourth case, the measured object 3 (a hole part) is stationary and the detection device rotates around the axis. The roundness, roughness, cylindricity, size, runout, coaxiality, location, and other form and position errors of the hole or the outer circle can be measured.

[0020] The present application can be used to measure the quality of finished products, semi-finished products, and blanks, such as the inspection of size, shape, and position errors. The present application can also be used for measurements required for production process control, such as, Figure 1 The scheme in the present application can be extended to monitor the deformation of parts due to thermal expansion in the production process and to monitor or check the deformation of parts under stress in scientific experiments. It can also be used to check the degree of wear and tear of mechanical parts.

[0021] When detecting the inner surface, for a through hole, the light can pass from the inside of the hole or from the outside of the hole. The positions of other related parts are adjusted accordingly. This is not difficult to do.

[0022] The size, shape, and position data measured by the present application can be used to fit the topography, shape, and structural features of the parts of the device and their changes. This has important academic value.

[0023] When the probe rod is a whole, it is easy to manufacture, but sometimes it is not very convenient to place the workpiece. When the probe rod is a split structure, the workpiece can be placed more easily after the probe rod is disassembled. After the workpiece is placed, the probe rod is assembled into a whole for use.

[0024] The present application has the following beneficial effects: First, when the length of the light is greater than the length of the workpiece, the detection results can be displayed more obviously, that is, the features of the measured part can be enlarged and displayed. In one detection, the distance between the light emitter and the light receiver is constant, and the light spot is stable. The above aspects help to improve the detection accuracy. Second, multiple parameters such as size, parallelism, perpendicularity, inclination, angle, roundness, cylindricity, roughness, position, and profile can be measured. Third, the present application can be used for product quality detection and can also be used for monitoring deformation and wear in production processes and scientific experiments. Fourth, the shape and topography of the measured part can be fitted by computer technology. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure diagram for detecting the outer surface when placed horizontally. Figure 2 The structure diagram for detecting the inner surface when placed vertically. In the figure: 1 - guide body, 2 - driving part, 3 - measured object, 4 - support, 5 - rotating pair, 6 - bracket, 7 - light emitter, 8 - light, 9 - probe rod, 10 - probe head, 11 - light receiver, 12 - display, 13 - operator. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be further described with reference to the drawings, which are shown by way of illustration and not of limitation.

[0027] Embodiment one: the guide body is static, the measured workpiece translates along the guide body, and the detection device does not translate along the guide body.

[0028] Embodiment two: the guide body is static, the measured workpiece is static; the detection device translates along the guide body.

[0029] Embodiment three: the measured object (a part with a hole) rotates around its axis, the detection device does not translate along the hole axis, and the support of the detection device is fixed.

[0030] Embodiment four: the measured object (a part with a hole) is static, and the detection device rotates around the axis.

Claims

1. A multifunctional high-precision measuring tool, comprising a guiding reference, a driving device, a detection device, an optical device, a supporting device, and a reading device, characterized in that: A driving device or a human hand moves the object being measured or the detection device relative to a guiding reference; the driving device or a human hand provides power to move one of the objects being measured or the detection device, thereby causing relative motion between the object being measured and the detection device; the detection device rotates about a fulcrum located at one end of it, and a detection head is located at the end of the detection device away from the fulcrum, which contacts the measured part of the object being measured; the light emitted by the light emitter connected to the detection rod and the light spot change with the rotation of the detection device; the distance between the light emitter and the light receiver remains constant during a single detection; the detection device has a detection rod and a detection head, and the reading device has a display; the detection rod can rotate in space about the fulcrum, the detection head is located on the detection rod, and its end contacts the measured part of the object being measured; the light emitter is connected to the detection rod, and the emitted light is directed towards the light receiver; the length of the light between the light emitter and the light receiver is greater than the length of the object being measured; the light receiver receives and displays the position of the light spot or its transformed information. Optical devices include light emitters and light receivers.

2. The multifunctional high-precision measuring tool according to claim 1, characterized in that: The guiding reference includes a guide body, and the detection device or the object being measured translates along the guide body; the change in the position of the detection rod causes a change in the position of the light spot on the light receiver and the light emitted by the light emitter; the display reflects the position of the light spot or its converted information.

3. The multifunctional high-precision measuring tool according to claim 1, characterized in that: The detection device or the object being measured rotates around the guide body; the detection rod follows the movement of the detection head; the change in the position of the detection rod causes a change in the position of the light spot on the light emitter, the light beam, and the light receiver; the display reflects the position of the light spot or its converted information.

4. A multifunctional high-precision measuring tool according to claim 1, characterized in that... The fulcrum of the detection device is located at any end of the workpiece being tested, and the positions of other parts change with the position of the fulcrum; the guiding reference is a machine tool guide rail or other guiding object, and the driving device is a machine tool slide; the workpiece being tested is placed vertically or horizontally.

5. A multifunctional high-precision measuring tool according to claim 1, characterized in that... The detection device has a cylindrical pair, a ball pair, a ball bearing, or other connecting structure at the pivot point, and the other connecting structure enables the detection rod to rotate.

6. A multifunctional high-precision measuring tool according to claim 1, characterized in that: The detection device has a clearance adjustment mechanism at the pivot point.

7. A multifunctional high-precision measuring tool according to claim 1, characterized in that: When inspecting an inner surface, if there is a through hole, light passes through either the inside or the outside of the hole.

8. A multifunctional high-precision measuring tool according to claim 2 or 3, characterized in that... The probe rod can be a single piece or a split piece. A split probe rod can be disassembled and then reassembled into a single piece.

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