Detection tool for detecting surface profile tolerance

Abstract

The invention relates to the field of detection tools, and provides a detection tool for detecting the profile tolerance of a surface. The gauge for detecting the surface profile tolerance comprises a circular ring piece and a connecting rod connected with the circular ring piece. A supporting part is formed on the connecting rod, the supporting part and the circular ring piece are arranged at an interval, the supporting part is used for being matched with a positioning block on the base, and a gap can be formed between the circular ring piece and the to-be-tested piece through the supporting part. The contour surface of the to-be-detected piece can be detected in the circumferential area, and the gauge for detecting the surface profile tolerance can detect a large number of measuring points of the contour surface of the to-be-detected piece, covers a large area, and can improve the judgment accuracy of the deformation of the to-be-detected piece.

Description

Technical Field

[0001] This application relates to the field of inspection tools, and more particularly to an inspection tool for inspecting surface profile. Background Technology

[0002] The surface contour of components such as metal speaker grilles is inspected using a caliper. Figure 1 As shown, a cross-sectional contour line 51 is taken on the curved surface of the component. A reference value A is offset outward from the cross-sectional contour line 51 at equal intervals to obtain an equally enlarged cross-sectional contour line 52. A clamping plate 53 is then machined using this equally enlarged cross-sectional contour line 52. During inspection, the part to be tested 4 is placed and positioned on the fixture base. The clamping plate 53 is then used to span and fix the part to be tested 4 at its cross-sectional position. This creates an ideal, uniform gap between the measured contour surface of the part to be tested 4 and the clamping plate 53, which is the aforementioned value A.

[0003] If the contour surface of the test piece 4 is deformed, the actual value B can be obtained by measuring the gap with a plug gauge. AB=C indicates that the actual gap deviates from the ideal gap. The value of the deviation is determined based on the size of C to see if it meets the preset range.

[0004] In related technologies, the area of ​​the contour surface of the test piece 4 that the card plate can detect is too small, resulting in low accuracy in judging the amount of deformation of the contour surface of the test piece 4. Summary of the Invention

[0005] This application provides a gauge for detecting surface profile. This gauge can detect a large number of measurement points on the profile surface of the test piece and covers a large area, thereby improving the accuracy of judging the deformation of the test piece.

[0006] This application provides a gauge for detecting surface profile, the gauge comprising a circular ring.

[0007] A connecting rod is connected to the ring component. The connecting rod has a support portion, which is spaced apart from the ring component. The support portion is used to cooperate with a positioning block on the base.

[0008] In some embodiments, a plurality of ring members are provided, and the plurality of ring members are arranged concentrically, with a gap formed between two adjacent ring members along the radial direction of the ring members.

[0009] In some embodiments, the connecting rod is in the form of a strip and extends radially along the annular member, with one end of each annular member embedded with the connecting rod.

[0010] In some embodiments, the connecting rod has support portions formed at both ends along the radial direction of the annular member, and the two support portions are symmetrically arranged with respect to the center of the annular member.

[0011] In some embodiments, the support portion protrudes radially from the circular ring member.

[0012] In some embodiments, the circular ring member has a first end and a second end formed on opposite axial sides, the second end is used to form a gap with the measured member, and the first end is embedded in the connecting rod.

[0013] In some embodiments, the edge line of the cross section of the circular ring member at the second end is an arc line.

[0014] In some embodiments, the heights of the plurality of circular ring members along the axial direction are equal, and the depths of the plurality of circular ring members embedded in the connecting rod are different.

[0015] In some embodiments, the depths of the plurality of circular ring members embedded in the connecting rod gradually decrease along the radial direction from the inside to the outside of the circular ring member.

[0016] In some embodiments, the gauge for detecting the surface profile further comprises a base, the base is provided with a recess for accommodating the measured member and a positioning block located at the edge of the recess, the positioning block is detachably connected with the base, and the positioning block is used to connect with the support portion.

[0017] In some embodiments, the positioning block is formed with a groove, the opening of the groove is arranged towards the support portion, and the side of the groove opposite to the opening is formed with a limiting plate.

[0018] In some embodiments, the inner wall of the recess is provided with a plurality of protrusions, the protrusions are in contact with the measured member, and the plurality of protrusions are spaced apart along the circumferential direction of the recess.

[0019] In some embodiments, the protrusion has a cavity, the side wall of the cavity towards the circular ring body is provided with a clamping hole, the clamping hole comprises a insertion hole and an opening located on both sides of the insertion hole in the circumferential direction of the circular ring member, the insertion hole is in communication with the opening, and the size of the opening in the radial direction of the circular ring member is smaller than the size of the insertion hole in the radial direction of the circular ring member.

[0020] The gauge for detecting the surface profile provided by the embodiments of the present application can support the circular ring member through the support portion on the connecting rod, so that the circular ring member and the measured member can form a gap for measurement along each region in the circumferential direction of the measured member. The profile surface of the measured member can be detected in each region in the circumferential direction, the gauge for detecting the surface profile can detect more measurement points of the profile surface of the measured member, cover a larger area, and improve the judgment accuracy of the deformation amount of the measured member. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0022] Figure 1 A longitudinal sectional view of a gauge for checking the profile of a measured part in the related art;

[0023] Figure 2 A three-dimensional structural schematic view of a gauge for detecting surface profile provided by the embodiment of the present application;

[0024] Figure 3 A structural schematic view of a gauge for detecting surface profile provided by the embodiment of the present application;

[0025] Figure 4 A Figure 3 A-A sectional view in the figure;

[0026] Figure 5 A structural schematic view of a base provided by the embodiment of the present application;

[0027] Figure 6 A structural exploded view of a gauge for detecting surface profile provided by the embodiment of the present application.

[0028] Explanation of the reference signs:

[0029] 1, circular ring part; 11, first end; 12, second end;

[0030] 2, connecting rod; 21, support part; 3, base; 31, concave cavity; 311, convex part; 3111, clamping hole;

[0031] 32, positioning block; 321, recess; 322, limiting plate; 4, measured part; 41, buckle

[0032] 51, cross-sectional profile line; 52, equidistantly enlarged cross-sectional profile line; 53, clamping plate. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0034] Many specific details are set forth in the following description in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be practiced according to other embodiments that are not described in detail herein; obviously, the description is only a part of the embodiments of the present disclosure, not all of the embodiments.

[0035] As shown in Figures 2 to 6 , the embodiment of the present application provides a gauge for detecting surface profile, which comprises a circular ring 1 and a connecting rod 2 connected with the circular ring 1. The connecting rod 2 is formed with a support part 21, which is arranged in a spaced manner with the circular ring 1 and is used to cooperate with a positioning block 32 on a base 3. The circular ring 1 can form a gap with a measured part 4 through the support part 21.

[0036] The measured part 4 can be a metal speaker cover or other parts, as shown in Figure 3 and Figure 4 , the circular ring 1 forms a gap with the measured profile surface of the measured part 4 through the support part 21.

[0037] The circular ring 1 can be provided with a plurality of circular rings 1, which are arranged concentrically, and a gap for inserting a plug gauge or a vernier caliper is formed between two adjacent circular rings 1 along the radial direction of the circular ring 1.

[0038] The gauge for detecting surface profile provided by the embodiment of the present application can form a gap for measuring in each area along the circumferential direction of the measured part 4 by arranging the circular ring 1 and the support part 21, and can form a gap for measuring in each area along the radial direction of the measured part 4 by arranging a plurality of concentrically arranged circular rings 1 and a connecting rod 2 connected with the plurality of circular rings 1. By forming a gap between two adjacent circular rings 1 along the radial direction of the circular ring 1, the plug gauge or the vernier caliper is inserted into the gap to measure the gap between the circular ring 1 and the measured part 4. The profile surface of the measured part 4 can be detected in each area along the circumferential direction and the radial direction, the gauge for detecting surface profile can detect a large number of measuring points of the profile surface of the measured part 4 and cover a large area, which can improve the judgment accuracy of the deformation amount of the measured part 4.

[0039] In some embodiments, as shown in Figure 2 , the circular ring 1 is formed with a first end 11 and a second end 12 on the opposite sides along the axial direction, the second end 12 is used to form a gap with the measured part 4, and the first end 11 is embedded in the connecting rod 2. It is convenient for a hand or a mechanical hand to directly take the gauge for detecting surface profile through the connecting rod 2.

[0040] The support part 21 formed on the connecting rod 2 can extend along the axial direction of the ring member 1 away from the first end 11 to protrude from the second end 12. When the gauge for detecting the surface profile is in use, the ring member 1 can form a gap with the measured member 4 through the support part 21.

[0041] The gap between the two adjacent ring members 1 in the radial direction of the ring member 1 is used for inserting the plug gauge or the vernier caliper to measure. The connecting rod 2 located between the two adjacent ring members 1 will block the gap so that the plug gauge or the vernier caliper cannot be inserted to measure. In some embodiments, the connecting rod 2 is in a strip structure and is arranged to extend along the radial direction of the ring member 1. The connecting rod 2 in the strip structure is thin and does not occupy too much gap between the two adjacent ring members 1, thereby increasing the detection area of the measured member 4.

[0042] In some embodiments, as shown in Figures 3 to 6 The two ends of the connecting rod 2 are formed with the support part 21. The support part 21 at the two ends of the connecting rod 2 can support the two sides of the ring member 1 in the radial direction, thereby improving the stability of the gauge for detecting the surface profile when in use. Further, the two support parts 21 are symmetrical relative to the center of the ring member 1. The two support parts 21 make the force on the two sides of the ring member 1 uniform, thereby improving the stability of the gauge for detecting the surface profile when in use.

[0043] In some embodiments, the support part 21 protrudes from the ring member 1 in the radial direction of the ring member 1. That is, the support part 21 is located outside the ring member 1 in the radial direction of the ring member 1, so that the support part 21 does not occupy the detection area of the measured member 4, thereby enabling the detection of a larger measured member 4.

[0044] Considering that the profile surface of the measured member 4 is mostly curved, in some realizable embodiments, the edge line of the cross section of the ring member 1 at the second end 12 is an arc line, so that the shape of the end surface of the second end 12 matches the shape of the profile surface of the measured member 4.

[0045] Further, in some embodiments, the heights of the plurality of ring members 1 along the axial direction are equal, the depths of the plurality of ring members 1 embedded in the connecting rod 2 are different, and the depths of the plurality of ring members 1 embedded in the connecting rod 2 gradually decrease along the radial direction of the ring member 1 from inside to outside, so as to form a measurement surface that matches the curved profile surface of the measured member 4.

[0046] In some embodiments, as shown in Figures 3 to 6 The gauge for detecting the surface profile further comprises a base 3, the base 3 is provided with a recess cavity 31 for accommodating the measured member 4 and a positioning block 32 located at the edge of the recess cavity 31, the positioning block 32 is used to connect with the support part 21. Referring to Figure 4The to-be-tested piece 4 is placed in the concave cavity 31 on the base 3, and the plurality of ring pieces 1 are connected with the base 3 through the support part 21 and the positioning block 32 to form a gap between the to-be-tested piece 4.

[0047] Considering that the thicknesses of different to-be-tested pieces 4 are different, the positioning block 32 is detachably connected with the base 3 to facilitate replacement of the positioning block 32 of different thicknesses, so that the gauge for detecting the surface profile can detect the profile of to-be-tested pieces 4 of different thicknesses. In specific implementation, referring to Figure 6 , the base can be provided with a blind hole, and the positioning block is inserted into the blind hole.

[0048] As shown in Figure 6 , in some embodiments, the positioning block 32 is formed with a groove 321, an opening of the groove 321 is arranged towards the support part 21, one end of the support part 21 is at least partially inserted into the groove 321, and a limiting plate 322 is formed on the side of the groove 321 opposite to the opening. The limiting plate 322 limits the movement of the connecting rod 2 along the radial direction of the ring piece 1, so as to limit the movement of the plurality of ring pieces 1 along the radial direction thereof, thereby avoiding deviation of the relative position of the plurality of ring pieces 1 and the to-be-tested piece 4 after the movement of the plurality of ring pieces 1 along the radial direction thereof, and deviation from the preset position will cause inaccurate detection results.

[0049] When the to-be-tested piece 4 needs to be replaced or the gauge for detecting the surface profile is not used, the base and the ring piece can be detached, that is, the support part and the groove 321 are detachably inserted.

[0050] In some embodiments, the inner wall of the concave cavity 31 is provided with a plurality of convex parts 311, the convex parts 311 are in contact with the to-be-tested piece 4, and the plurality of convex parts 311 are spaced apart along the circumferential direction of the concave cavity 31. The convex parts 311 support the to-be-tested piece 4, and the plurality of convex parts 311 are spaced apart along the circumferential direction of the concave cavity 31, that is, there is a space between adjacent two convex parts 311, which saves the material of the base 3 and also reduces the weight.

[0051] In some embodiments, the to-be-tested piece 4 has a buckle 41, the convex part 311 has a cavity for accommodating the buckle 41, and a clamping hole 3111 is arranged on the side wall of the cavity. The shape of the clamping hole 3111 matches the shape of the buckle 41. Specifically, referring to Figure 6The convex part 311 has a cavity, and a clamping hole 3111 is arranged on the side wall of the cavity facing the annular body. The clamping hole 3111 includes a insertion hole and two open holes located on both sides of the insertion hole in the circumferential direction of the annular member 1. The insertion hole is in communication with the open holes, and the size of the open holes in the radial direction of the annular member 1 is smaller than the size of the insertion hole in the radial direction of the annular member 1. The buckle 41 includes a connecting rod extending away from the measured member 4. The end of the connecting rod away from the measured member 4 is provided with a protrusion on both sides in the radial direction of the annular body. The insertion hole is used for sliding the connecting rod, and the open hole is used for passing the protrusion. When the connecting rod slides into the insertion hole, the two protrusions are located on both sides of the open hole in the radial direction of the annular body. After the measured member 4 is slightly rotated, the protrusions on both sides of the connecting rod are just misaligned with the open hole. When the buckle 41 is subjected to an external force, the side wall of the cavity abuts against the protrusions on both sides of the connecting rod, so that when one side of the measured member 4 is subjected to pressure, the other side will not be raised.

[0052] It should be noted that, in the present document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", "includes", "including", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a", "comprising... a", "includes... a", "including... a", or the like with no mutually exclusive relationship is understood to imply that anything other than the specifically recited elements are not included.

[0053] It should also be noted that, although the present application has been described with reference to the preferred embodiments, various modifications can be made to the application without departing from the scope of the application, and equivalent substitutions can be made to the components thereof, and in particular, the technical features mentioned in each embodiment can be combined in any manner without structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0054] The above describes only the specific implementation of the present application, and those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, module and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here. It should be understood that the protection scope of the present application is not limited to this, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A gauge for detecting a surface profile, characterized by, The utility model relates to a kind of detection tools for detecting surface profile, including: Circular ring; Connecting rod is connected with the circular ring, the connecting rod is formed with support part, the support part is spaced apart with the circular ring, and the support part is used to cooperate with positioning block on base.

2. The gauge for detecting a face profile according to claim 1, wherein The circular ring is provided with multiple, multiple The circular ring is concentrically arranged, and a gap is formed between two adjacent circular rings along the radial direction of the circular ring.

3. The gauge for detecting the face profile according to claim 2, wherein The connecting rod is in strip structure and extends along the radial direction of the circular ring, and one end of each circular ring is embedded in the connecting rod.

4. The gauge for detecting the face profile according to claim 3, wherein The connecting rod is formed with the support part at both ends along the radial direction of the circular ring, and the two support parts are symmetrically arranged with respect to the center of the circular ring.

5. The gauge for detecting the face profile of claim 4, wherein, The support part is arranged protruding from the circular ring in the radial direction of the circular ring.

6. The gauge for detecting a face profile according to claim 1 or 2, wherein The circular ring is formed with a first end and a second end on two axially opposite sides respectively, the second end is used to form a gap with the measured piece, and the first end is embedded in the connecting rod.

7. The gauge for detecting the face profile according to claim 6, wherein The edge line of the cross section of the circular ring at the second end is an arc line.

8. The gauge for detecting the face profile according to claim 7, wherein The heights of multiple circular rings along the axial direction are equal, and the depths of multiple circular rings embedded in the connecting rod are different. Along the radial direction of the circular ring from inside to outside, the depths of multiple circular rings embedded in the connecting rod gradually decrease.

9. The gauge for detecting the face profile of claim 1, wherein, The detection tool for detecting surface profile also includes a base, the base is provided with a recess for accommodating the measured piece and the positioning block located at the edge of the recess, and the positioning block is detachably connected with the base.

10. The gauge for detecting the face profile of claim 9, wherein, The positioning block is formed with a groove, and the opening of the groove is arranged towards the support part, and the side of the groove opposite to the opening is formed with a limiting plate.

11. The gauge for detecting the face profile of claim 9, wherein, The inner wall of the recess is provided with multiple convex parts, the convex parts are connected with the measured piece, and multiple convex parts are spaced apart along the circumferential direction of the recess.

12. The gauge for detecting the face profile of claim 11, wherein, The convex part has a cavity, and the side wall of the cavity towards the circular ring body is provided with a clamping hole, the clamping hole includes a insertion hole and an opening located on both sides of the insertion hole in the circumferential direction of the circular ring, the insertion hole is communicated with the opening, and the size of the opening in the radial direction of the circular ring is smaller than the size of the insertion hole in the radial direction of the circular ring.

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