Portable flatness detection tool

Abstract

The utility model discloses a portable flatness detection tool, the portable flatness detection tool comprises a detection tool main body and at least one detection member, the detection tool main body comprises a fixed seat, the upper and lower surfaces of the fixed seat are arranged to be parallel to a horizontal plane, the detection member comprises a detection member and a fixed member, and the fixed member is arranged to be parallel to the horizontal plane. Wherein the fixed part is fixedly installed on the upper surface of the fixed seat, one end portion of the fixed part horizontally protrudes out of the fixed seat, the detection part comprises a detection main body and a test rod, the detection main body is installed on the end portion, horizontally protruding out of the fixed seat, of the fixed part, and the test rod is installed on the detection main body. And the test rod is arranged to be telescopically installed at the lower end part of the detection main body, the test rod penetrates through the fixing piece, the end part of the test rod vertically protrudes out of the lower surface of the fixing seat, and when the fixing seat is pressed on a to-be-detected part, the flatness of the part is rapidly judged according to the contraction condition of the test rod.

Description

Technical Field

[0001] This utility model relates to product testing devices, and more particularly to a convenient flatness testing fixture. Background Technology

[0002] A coordinate measuring machine (CMM) is a testing instrument used to accurately measure the flatness of parts. In order to accurately measure the flatness of parts, the parts are fixed by a clamping device.

[0003] Because of the diverse shapes of parts, their stress and center of gravity vary, resulting in different clamping and fixing positions and consequently varying degrees of difficulty in clamping operations. For example, the PTO stepped plane of a gearbox is a type of circular, thin-walled part. Clamping this part is cumbersome because it is prone to deformation, which makes measuring this part time-consuming. Utility Model Content

[0004] To achieve at least one of the advantages of this utility model, this utility model provides a convenient flatness testing fixture for detecting the flatness of a part having a groove. The convenient flatness testing fixture includes:

[0005] The fixture body includes a fixed base, the upper and lower surfaces of which are set parallel to the horizontal plane;

[0006] At least one detection component, the detection component including a detection element and a fixing element, wherein the fixing element is fixedly installed on the upper surface of the fixing base, and one end of the fixing element protrudes horizontally from the fixing base; the detection element includes a detection body and a test rod, wherein the detection body is installed at the end of the fixing element that protrudes horizontally from the fixing base; the test rod is provided to be retractably installed at the lower end of the detection body, the test rod passes through the fixing element and its end protrudes vertically from the lower surface of the fixing base.

[0007] According to one embodiment of the present invention, the side wall of the fixing seat forms a plurality of embedding portions, which are adapted to the grooves of the parts.

[0008] According to one embodiment of the present invention, the fixing base has at least one support portion, the support portion is disposed on the lower surface of the fixing base, and the support portion has a predetermined height.

[0009] According to one embodiment of the present invention, the main body of the inspection tool includes a handheld part, which is vertically connected to the upper surface of the fixed base.

[0010] According to one embodiment of the present invention, the outer wall of the handheld part is formed with a plurality of friction protrusions, the friction protrusions being arranged to protrude laterally and have spacing in the vertical direction.

[0011] According to one embodiment of the present invention, the detection component further includes a scale and a pointer, wherein the scale is mounted on the detection body and has a scale, the pointer is rotatably mounted on the detection body along the scale of the scale, and the test rod is connected to the pointer in a rotatable manner via a gear.

[0012] According to one embodiment of the present invention, the dial is rotatably mounted on the detection body.

[0013] According to one embodiment of the present invention, the number of the detection components is four, and the four detection components are distributed in a cross shape on the fixed base.

[0014] According to one embodiment of the present invention, the portable flatness testing fixture further includes a calibration base, the calibration base being adapted to the fixed base, the fixed base being configured to be placed on the calibration base, the calibration base forming at least one calibration part corresponding to the portion of the embedded part, and when the fixed base is placed on the calibration base, the test rod fixed on the fixed base is configured to abut against the calibration part.

[0015] According to one embodiment of the present invention, the calibration part of the calibration base is configured as an annular shape, and the calibration base forms a placement groove corresponding to the support part of the fixed seat. The height difference between the bottom of the placement groove and the surface of the calibration part is equal to the height of the support part. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the convenient flatness testing fixture of this utility model is shown.

[0017] Figure 2 A cross-sectional schematic diagram of the main body and testing components of the convenient flatness testing fixture of this utility model is shown.

[0018] Figure 3 A schematic diagram of the calibration base of the convenient flatness testing fixture of this utility model is shown.

[0019] Figure 4 A cross-sectional schematic diagram of the convenient flatness testing fixture of this utility model is shown. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] refer to Figures 1 to 4 A preferred embodiment of the present invention, a convenient flatness testing fixture, will be described in detail below. The convenient flatness testing fixture includes a fixture body 10 and at least one testing component 20.

[0024] The inspection fixture body 10 includes a fixed base 11, the upper and lower surfaces of which are set parallel to the horizontal plane.

[0025] The detection component 20 includes a detection element 21 and a fixing element 22, wherein the fixing element 22 is fixedly installed on the upper surface of the fixing base 11, and one end of the fixing element 22 protrudes horizontally from the fixing base 11.

[0026] The detection element 21 includes a detection body 211 and a test rod 212, wherein the detection body 211 is mounted on the end of the fixing member 22 that protrudes horizontally from the fixing base 22. The test rod 212 is telescopically mounted on the lower end of the detection body 211, the test rod 212 passes through the fixing member 22 and its end protrudes vertically from the lower surface of the fixing base 11. When the fixing base 11 is placed on the surface of the part to be detected, the end of the test rod 212 abuts against the surface of the part.

[0027] As an example, the detection element 21 is implemented to include a dial indicator. The fixing element 22 is implemented to include a pressure plate.

[0028] Those skilled in the art will understand that when the fixing seat 11 is pressed against the upper surface of the part, the test rod 212 of the detection element 21 abuts against the upper surface of the part. At this time, the test rod 212 is partially retracted into the detection body 211. The flatness of the upper surface of the part can be quickly determined based on the retraction of the test rod 212. In this way, the flatness of the surface of the part can be quickly detected without clamping.

[0029] It is worth mentioning that the surface of the part to be tested may have a groove of a specific shape, such as a gear-shaped groove, and the fixing seat 11 needs to be placed in the groove, and the detection element 21 on the fixing seat 11 needs to be aligned with the position to be tested.

[0030] Preferably, the sidewall of the fixing seat 11 forms a plurality of insert portions 111, which are adapted to the groove of the part, so that when the fixing seat 11 is placed in the groove, the insert portion 111 is embedded in the groove, thereby restricting the lateral movement of the fixing seat 11, preventing the test piece 21 from moving laterally, and improving the test accuracy.

[0031] Preferably, the fixing base 11 has at least one support portion 112, which is disposed on the lower surface of the fixing base 11 and has a predetermined height. When the fixing base 11 is normally placed, the bottom surface of the fixing base 11 maintains a predetermined distance from other objects, so that the test rod 212 protrudes from the bottom of the fixing base 11 without contacting other objects, thus maintaining the telescopic capability of the test rod 212.

[0032] Preferably, the main body 10 of the inspection tool includes a hand-held part 12, which is vertically connected to the upper surface of the fixed base 11. The hand-held part 12 is for the user to hold, so that the user can move the fixed base 11.

[0033] More preferably, the outer wall of the handheld part 12 is formed with a plurality of friction protrusions 121, which are arranged to protrude laterally and have spacing in the vertical direction, so as to enhance the friction between the handheld part 12 and the user's palm and prevent the handheld part 12 from slipping.

[0034] Preferably, the detection element 21 further includes a scale 213 and a pointer 214, wherein the scale 213 is mounted on the detection body 211 and has a scale. The pointer 214 is rotatably mounted on the detection body 211 along the scale of the scale 213, and the test rod 212 is rotatably connected to the pointer 214 via a gear, so that the extension length of the test rod 212 is amplified by the pointer 214 and thus displayed in real time on the scale 213, making it convenient for the user to observe the detection.

[0035] Preferably, the dial 213 is rotatably mounted on the detection body 211, so that the scale on the dial 213 can be adjusted. When no detection is being performed, the pointer 214 can be made to point to a specific scale by rotating the dial 213, which facilitates the comparison between the extension length of the test rod 212 and the specific extension length when measuring the part.

[0036] Preferably, the number of the detection components 20 is four, and the four detection components 20 are distributed in a cross shape on the fixing base 11, so as to detect the flatness of the part from multiple directions.

[0037] Preferably, the portable flatness testing fixture further includes a calibration base 30, which is adapted to the fixed base 11. The fixed base 11 is configured to be placed on the calibration base 30. The calibration base 30 forms at least one calibration part 31 corresponding to the embedded part 111. When the fixed base 11 is placed on the calibration base 30, the test rod 212 fixed on the fixed base 11 is configured to abut against the calibration part 31.

[0038] It is understood that when the fixing seat 11 is placed on the calibration base 30, the test rod 212 of the detection element 21 abuts against the calibration part 31 accordingly. At this time, the scale 213 is adjusted so that the pointer 214 points to the zero mark. When the fixing seat 11 is inserted into the groove of the part, the test rod 212 of the detection element 21 abuts against the plane of the part. At this time, the flatness of the part can be quickly understood by observing the distance between the pointer 214 and the zero mark of the scale 213.

[0039] Preferably, the calibration portion 31 of the calibration base 30 is configured as an annular shape, so that the test rod 212 can abut against the calibration portion 31 whenever the fixed seat 11 is placed on the calibration base 30 in any manner. The calibration base 30 forms a placement groove 301 corresponding to the support portion 112 of the fixed seat 11. The height difference between the bottom of the placement groove 301 and the surface of the calibration portion 31 is equal to the height of the support portion 112, so that when the fixed seat 11 is placed on the calibration base 30, the support portion 112 can be placed in the placement groove 301, thereby preventing the support portion 112 from interfering with the fixed seat 11 abutting against the calibration base 30.

[0040] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A portable flatness testing fixture for inspecting the flatness of parts having grooves, characterized in that: The portable flatness testing fixture includes: The fixture body includes a fixed base, the upper and lower surfaces of which are set parallel to the horizontal plane; At least one detection component, the detection component including a detection element and a fixing element, wherein the fixing element is fixedly installed on the upper surface of the fixing base, and one end of the fixing element protrudes horizontally from the fixing base; the detection element includes a detection body and a test rod, wherein the detection body is installed at the end of the fixing element that protrudes horizontally from the fixing base; the test rod is provided to be retractably installed at the lower end of the detection body, the test rod passes through the fixing element and its end protrudes vertically from the lower surface of the fixing base.

2. The convenient flatness testing fixture according to claim 1, characterized in that, The sidewall of the mounting base forms multiple inserts, which are adapted to the grooves of the parts.

3. The convenient flatness testing fixture according to claim 2, characterized in that, The fixing base has at least one support portion, which is disposed on the lower surface of the fixing base and has a predetermined height.

4. The convenient flatness testing fixture according to claim 1, characterized in that, The main body of the inspection tool includes a handle, which is vertically connected to the upper surface of the fixed base.

5. The convenient flatness testing fixture according to claim 4, characterized in that, The outer wall of the handgrip has multiple friction protrusions, which are arranged to protrude laterally and have spacing in the vertical direction.

6. The convenient flatness testing fixture according to claim 3, characterized in that, The testing component further includes a dial and a pointer, wherein the dial is mounted on the testing body and has a scale, the pointer is rotatably mounted on the testing body along the scale of the dial, and the test rod is connected to the pointer rotatably via a gear.

7. The convenient flatness testing fixture according to claim 6, characterized in that, The dial is rotatably mounted on the detection body.

8. The convenient flatness testing fixture according to claim 1, characterized in that, The number of detection components is four, and the four detection components are distributed in a cross shape on the fixed base.

9. The convenient flatness testing fixture according to claim 6 or 7, characterized in that, The portable flatness testing fixture also includes a calibration base, which is adapted to the fixed base. The fixed base is configured to be placed on the calibration base. The calibration base forms at least one calibration part corresponding to the portion of the embedded part. When the fixed base is placed on the calibration base, the test rod fixed on the fixed base is configured to abut against the calibration part.

10. The convenient flatness testing fixture according to claim 9, characterized in that, The calibration part of the calibration base is configured as an annular shape, and the calibration base forms a placement groove corresponding to the support part of the fixed base. The height difference between the bottom of the placement groove and the surface of the calibration part is equal to the height of the support part.

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