Detection device and detection method

Abstract

The invention provides a detection device and a detection method, and aims to improve the detection precision on the basis of low cost, and the detection device comprises a standard component with a standard size value; the base is used for bearing the standard return part or bearing a to-be-detected workpiece capable of replacing the standard return part; the positioning piece is arranged on the base and used for positioning a standard part or a workpiece; the detection assembly comprises a detection piece, a supporting piece, an elastic piece and a driving piece, the detection piece comprises a detection body, a telescopic body and a protruding body, the detection body and the positioning piece are arranged on the base in a spaced mode, the telescopic body is connected with the detection body and can do telescopic motion relative to the detection body, and the protruding body is arranged on the side wall of the telescopic body in a protruding mode; the supporting piece is adjacent to the detection body, arranged on the base and sleeved with the telescopic body, the supporting piece is used for guiding the movement direction of the telescopic body, the telescopic body is sleeved with the elastic piece, the two ends of the elastic piece elastically abut against the supporting piece and the protruding body respectively, and the driving piece is connected with the telescopic body.

Description

Technical Field

[0001] The present invention relates to the technical field of product detection, and in particular to a detection device and a detection method. Background Art

[0002] Nowadays, the precision requirements of electronic devices are getting higher and higher. After the production of their parts is completed, they need to be inspected for size, such as the slot width inspection of the opening slot of the notebook shell. Generally, operators use calipers to measure directly, or use complex optical measuring instruments such as OMM (Optical Measuring Machine) to measure. However, the detection accuracy of manual direct caliper inspection and the use environment of optical measuring instruments are relatively harsh, and they cannot be applied to complex production environments, and their use costs are high. Summary of the invention

[0003] In view of the above situation, it is necessary to provide a detection device and a detection method to improve the detection accuracy at a low cost.

[0004] The present application provides a detection device, including: Standardized parts with standard size values; A base, used for carrying the standard parts, or carrying a workpiece to be inspected that can replace the standard parts; A positioning member, disposed on the base, and used to abut against the standard component or the workpiece to position the standard component or the workpiece; and The detection component comprises a detection member, a support member, an elastic member and a driving member, wherein the detection member comprises a detection body, a telescopic body and a protrusion, wherein the detection body and the positioning member are arranged at intervals on the base, the telescopic body is connected to the detection body and can telescopically move relative to the detection body, the protrusion is protruding from the side wall of the telescopic body, the support member is arranged on the base adjacent to the detection body and sleeved on the telescopic body, the support member is used to guide the movement direction of the telescopic body, the elastic member is sleeved on the telescopic body, the two ends of the elastic member are elastically abutted against the support member and the protrusion respectively, the driving member is connected to the telescopic body, the driving member is used to drive the telescopic body to extend and drive the protrusion to compress the elastic member to the support member, so that the standard return part or the workpiece is placed on the base, the compressed elastic member is used to elastically open and reset and drive the telescopic body to abut against the preset position of the standard return part or the predetermined position of the workpiece, so that the detection member detects the actual size value of the workpiece based on the telescopic length of the telescopic body and the standard size value of the standard return part.

[0005] In some embodiments, the positioning member is provided with a positioning groove, and the positioning groove has a first positioning surface and a second positioning surface that are vertically connected, and the first positioning surface and the second positioning surface are used to abut against different positions of the workpiece or the standard return part respectively.

[0006] In some embodiments, a plurality of adjustment holes are arranged at intervals on the base, and the positioning member is detachably connected to the base through the corresponding adjustment holes.

[0007] In some embodiments, the driving member includes a driving body and a connecting body, the driving body is arranged on one side of the supporting member and connected to the connecting body, and a mounting groove is provided on a side of the connecting body away from the detecting body; The telescopic body includes a telescopic part and an abutment part, one end of the telescopic part is passed through the connecting body and extends into the mounting groove, the other end of the telescopic part is movably passed through the elastic member and the supporting member and is connected to the detection body, one end of the abutment part is connected to the telescopic part and is clamped with the mounting groove, and the other end of the abutment part extends out of the mounting groove for abutting the standard return part or the workpiece.

[0008] In some embodiments, the cross-sectional area of ​​the abutting portion decreases gradually along a direction from one end of the abutting portion adjacent to the telescopic portion toward the other end of the abutting portion away from the telescopic portion.

[0009] In some embodiments, the detection device further comprises: A cover plate is movably disposed above the base, and is used to cover the workpiece supported by the base to fix the workpiece to the base.

[0010] In some embodiments, a contoured body is provided on a side of the cover plate facing the base, the contoured body is adapted to the workpiece, and the contoured body is used to fit the workpiece.

[0011] In some embodiments, the detection device further comprises: A pressing member is disposed on the base adjacent to the positioning member, and is used for pressing the cover plate member to the base.

[0012] The present application also provides a detection method, which is applied to the above detection device. The detection method includes: The driving member drives the telescopic body to extend and drives the protruding body to compress the elastic member to the supporting member, so that the standard return part is placed on the base, and the positioning member positions the standard return part; The elastic member drives the telescopic body to retract and abut against a preset position of the standard return part, so that the detection body detects a first telescopic value of the telescopic body; The driving member drives the telescopic body to extend and drives the protruding body to compress the elastic member to the supporting member, so that the workpiece to be inspected replaces the standard part and is placed on the base, and the positioning member positions the workpiece; The elastic member drives the telescopic body to retract and abut against a predetermined position of the workpiece, so that the detection body detects a second telescopic value of the telescopic body; Based on the first telescopic value, the second telescopic value and the standard size value of the standard part, the actual size value of the workpiece is determined.

[0013] In some embodiments, before the step of “the elastic member drives the telescopic body to retract and abut against a preset position of the workpiece so that the detection body detects the second telescopic value of the telescopic body”, the detection method further includes: A cover plate member covers the workpiece to the base so that the cover plate member supports the workpiece; The pressing member presses the cover member to the base so that the cover member shapes the workpiece.

[0014] When the above-mentioned detection device and detection method are actually used, first the driving member drives the telescopic body to extend and drives the protrusion to compress the elastic member to the supporting member, so that the standard return part is placed on the base, and the positioning member positions the standard return part; then the elastic member drives the telescopic body to retract and abut against the preset position of the standard return part, so that the detection body detects the first telescopic value of the telescopic body; then the driving member drives the telescopic body to extend and drives the protrusion to compress the elastic member to the supporting member, so that the workpiece to be detected replaces the standard return part and is placed on the base, and the positioning member positions the workpiece; finally, the elastic member drives the telescopic body to retract and abut against the preset position of the workpiece, so that the detection body detects the second telescopic value of the telescopic body, and determines the size difference between the standard return part and the workpiece based on the first telescopic value and the second telescopic value. In this way, the telescopic body is in contact with the preset position of the standard return part and the predetermined position of the workpiece to obtain different telescopic values, thereby determining the size difference between the standard return part and the workpiece based on the first telescopic value, the second telescopic value and the standard size value of the standard return part, and then accurately determining the actual size value of the workpiece. The various components of the detection device do not require complex mechanical structures and precise connections, thereby achieving improved detection accuracy of the detection device at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of the detection device and the adapted workpiece provided in the embodiment of the present application.

[0016] Figure 2 for Figure 1 A schematic diagram of the structural decomposition of the detection device shown.

[0017] Figure 3 A schematic diagram of the process of the detection method provided in the embodiment of the present application.

[0018] Description of the main component symbols: detection device 100, standard return part 10, base 20, adjustment hole 21, positioning member 30, positioning groove 31, first positioning surface 311, second positioning surface 312, positioning body 32, limiting groove 321, flexible body 33, limiting groove 331, detection assembly 40, detection member 41, detection body 411, telescopic body 412, telescopic part 4121, abutment part 4122, protrusion 413, support member 42, support body 421, limiting body 422, elastic member 43, driving member 44, driving body 441, connecting body 442, installation groove 4421, cover plate member 50, contoured body 51, clamping member 60, clamping driving body 61, clamping body 62, control valve 63, workpiece 200. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0020] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0023] See also Figure 1 The present application embodiment provides a detection device 100, which includes a standard return part 10, a base 20, a positioning member 30 and a detection assembly 40. The detection device 100 is used to quickly detect the size value of a workpiece 200, thereby improving the detection accuracy at a low cost. The workpiece 200 may be a laptop computer housing with an open slot, a mobile phone housing, etc.

[0024] See also Figure 1 and Figure 2 The base 20 is used to carry the standard return part 10 or the workpiece 200 to be inspected which can replace the standard return part 10. The positioning member 30 is disposed on the base 20, and the positioning member 30 is used to abut against the standard return part 10 or the workpiece 200 to position the standard return part 10 or the workpiece 200. The detection assembly 40 includes a detection member 41, a support member 42, an elastic member 43 and a driving member 44. The detection member 41 includes a detection body 411, a telescopic body 412 and a protrusion 413. The detection body 411 and the positioning member 30 are arranged on the base 20 at intervals. The telescopic body 412 is connected to the detection body 411 and can telescopically move relative to the detection body 411. The protrusion 413 is convexly arranged on the side wall of the telescopic body 412. The support member 42 is arranged on the base 20 adjacent to the detection body 411 and is sleeved on the telescopic body 412. The support member 42 is used to guide the movement direction of the telescopic body 412. The elastic member 43 is sleeved on the telescopic body 412. The two ends of the elastic member 43 are elastically abutted against the support member 42 and the protrusion 413, respectively. The driving member 44 is connected to the telescopic body 412. The driving member 44 is used to drive the telescopic body 412 to extend and drive the protrusion 413 to compress the elastic member 43 to the support member 42, so that the standard return part 10 or the workpiece 200 is placed on the base 20. The compressed elastic member 43 is used to elastically open and reset and drive the telescopic body 412 to abut against the preset position of the standard return part 10 or the predetermined position of the workpiece 200, so that the detection member 41 detects the size difference between the standard return part 10 and the workpiece 200 based on the telescopic length of the telescopic body 412. Exemplarily, the elastic member 43 can be a spring.

[0025] When the above-mentioned detection device 100 is actually used, first the driving member 44 drives the telescopic body 412 to extend and drives the protrusion 413 to compress the elastic member 43 to the support member 42, so that the standard return part 10 is placed on the base 20, and the positioning member 30 positions the standard return part 10; then the elastic member 43 drives the telescopic body 412 to retract and abut against the preset position of the standard return part 10, so that the detection body 411 detects the first telescopic value of the telescopic body 412; then the driving member 44 drives the telescopic body 412 to extend and drives the protrusion 413 to compress the elastic member 43 to the support member 42, so that the workpiece 200 to be detected replaces the standard return part 10 and is placed on the base 20, and the positioning member 30 positions the workpiece 200; finally, the elastic member 43 drives the telescopic body 412 to retract and abut against the preset position of the workpiece 200, so that the detection body 411 detects the second telescopic value of the telescopic body 412, and determines the size difference between the standard return part 10 and the workpiece 200 based on the first telescopic value and the second telescopic value. In this way, the telescopic body 412 is in contact with the preset position of the standard return part 10 and the predetermined position of the workpiece 200 to obtain different telescopic values, respectively, so as to determine the size difference between the standard return part 10 and the workpiece 200 based on the first telescopic value and the second telescopic value and the standard size value of the standard return part 10, and then accurately determine the actual size value of the workpiece 200. Moreover, the various components of the detection device 100 do not require complex mechanical structures and precise connections, thereby achieving the goal of improving the detection accuracy of the detection device 100 on the basis of low cost.

[0026] It can be understood that each component in the detection device 100 has a certain tolerance. Therefore, by first detecting the standard part 10 and then detecting the workpiece 200, the standard part 10 and the workpiece 200 are detected under the same detection conditions, so as to obtain the difference between the standard part 10 and the workpiece 200 under the same detection conditions, and then determine the actual size value of the workpiece 200 based on the standard size value of the standard part 10.

[0027] See also Figure 2 In some embodiments, the positioning member 30 is provided with a positioning groove 31, and the positioning groove 31 has a first positioning surface 311 and a second positioning surface 312 which are vertically connected. The first positioning surface 311 and the second positioning surface 312 are used to abut against different positions of the workpiece 200 or the standard return part 10 respectively.

[0028] In this way, by setting a vertically connected first positioning surface 311 and a second positioning surface 312 in the positioning groove 31, the first positioning surface 311 and the second positioning surface 312 are respectively abutted against different positions of the workpiece 200 or the standard return part 10, thereby increasing the contact area between the positioning member 30 and the workpiece 200 or the standard return part 10, thereby ensuring that the positioning member 30 stably and accurately positions the workpiece 200 or the standard return part 10.

[0029] It can be understood that a positioning structure compatible with the workpiece 200 and the standard return part 10 can be set on the first positioning surface 311 and the second positioning surface 312, such as a groove, a protrusion, etc., to ensure that the first positioning surface 311 and the second positioning surface 312 are completely in contact with the workpiece 200 or the standard return part 10, which is conducive to the precise positioning of the positioning part 30.

[0030] In some embodiments, a plurality of adjustment holes 21 are arranged at intervals on the base 20 , and the positioning member 30 is detachably connected to the base 20 through the corresponding adjustment holes 21 .

[0031] In this way, by arranging a plurality of adjustment holes 21 at intervals on the base 20, the positioning member 30 is inserted into a suitable adjustment hole 21 based on the size of the workpiece 200 to be detected, so that the positioning member 30 and the base 20 can be detachably connected, and the detection device 100 can detect workpieces 200 of different sizes, thereby improving the detection flexibility and applicability of the detection device 100.

[0032] It can be understood that in the present embodiment, the positioning member 30 is pluggably connected to the base 20. In other embodiments, the positioning member 30 can also be magnetically connected to the base 20, snap-on connected, etc., so that the positioning member 30 and the base 20 can be detachably connected.

[0033] In this embodiment, the positioning member 30 includes a positioning body 32 and a flexible body 33. The positioning body 32 is inserted into the corresponding adjustment hole 21 and has a limiting groove 321. The flexible body 33 is arranged at one end of the positioning body 32 away from the base 20 and is clamped with the positioning body 32. The flexible body 33 has a limiting groove 331, which is connected to the limiting groove 321 to form the positioning groove 31. Exemplarily, the material of the flexible body 33 can be silicone, urethane foam, etc.

[0034] In this way, by setting the specific structure of the above-mentioned positioning member 30, when the standard return part 10 or the workpiece 200 is placed on the base 20, the flexible body 33 flexibly abuts against the standard return part 10 or the workpiece 200 to guide the standard return part 10 or the workpiece 200 to the positioning body 32, so that the positioning body 32 can position the standard return part 10 or the workpiece 200.

[0035] See also Figure 1 and Figure 2In some embodiments, the driving member 44 includes a driving body 441 and a connecting body 442. The driving body 441 is disposed on one side of the supporting member 42 and connected to the connecting body 442. A mounting groove 4421 is provided on the side of the connecting body 442 away from the detecting body 411. The telescopic body 412 includes a telescopic portion 4121 and an abutting portion 4122. One end of the telescopic portion 4121 is passed through the connecting body 442 and extends into the mounting groove 4421. The other end of the telescopic portion 4121 is movably passed through the elastic member 43 and the supporting member 42 and connected to the detecting body 411. One end of the abutting portion 4122 is connected to the telescopic portion 4121 and is clamped with the mounting groove 4421. The other end of the abutting portion 4122 extends out of the mounting groove 4421 to abut against the standard return part 10 or the workpiece 200. Exemplarily, the driving body 441 may be a cylinder.

[0036] In this way, by setting the specific structure of the above-mentioned driving member 44 and the telescopic body 412, when the driving body 441 drives the connecting body 442 to drive the telescopic part 4121 to extend, so that the abutment part 4122 moves away from the detection body 411, it is ensured that the abutment part 4122 extending out of the mounting groove 4421 provides a sufficiently large placement space for the workpiece 200 and the standard return part 10 to be placed, avoiding interference between the abutment part 4122 and the workpiece 200 or the standard return part 10; when the elastic member 43 elastically opens and resets, the telescopic part 4121 retracts under the drive of the protrusion 413, so that the abutment part 4122 stably abuts against the preset position of the standard return part 10 or the predetermined position of the workpiece 200, thereby improving the detection stability and accuracy. In addition, the installation groove 4421 of the connecting body 442 is engaged with the abutment portion 4122, so that a detachable connection structure is formed between the telescopic body 412 and the driving member 44, which is convenient for the operator to replace or repair the detection component 40, avoids replacing the overall structure of the detection component 40, and reduces the cost of use.

[0037] In some embodiments, the cross-sectional area of ​​the abutting portion 4122 decreases gradually from one end of the abutting portion 4122 adjacent to the telescopic portion 4121 to the other end of the abutting portion 4122 away from the telescopic portion 4121 .

[0038] Since the surface of the predetermined position to be inspected of the workpiece 200 may be uneven or have tiny protrusions, by setting the specific structure of the above-mentioned abutment portion 4122, the contact area between the abutment portion 4122 and the workpiece 200 can be reduced, so that the abutment portion 4122 can better adapt to the undulations of the surface of the workpiece 200, thereby ensuring the stable contact state of the abutment portion 4122 and improving the detection accuracy; in addition, by reducing the contact area between the abutment portion 4122 and the workpiece 200, the friction between the abutment portion 4122 and the workpiece 200 is relatively small, thereby reducing the damage to the abutment portion 4122 during long-term repeated operations, while ensuring the product quality of the workpiece 200 to be inspected.

[0039] See also Figure 2 In some embodiments, the support member 42 includes a support body 421 and a limiter 422. The support body 421 is disposed between the driving member 44 and the detection body 411 and abuts against the elastic member 43, and the support body 421 is sleeved on the telescopic body 412, and the support body 421 is used to support and guide the telescopic body 412. The limiter 422 is spaced apart from the base 20 along the direction from the base 20 to the driving member 44 and connected to the support body 421, and the limiter 422 is used to limit the standard return part 10 or the workpiece 200 along the direction from the base 20 to the driving member 44.

[0040] In this way, when the standard return part 10 or the workpiece 200 is placed on the base 20, the standard return part 10 is taken as an example for explanation. The standard return part 10 is placed on the base 20, and the standard return part 10 is respectively abutted against the positioning member 30 and the support body 421, so that the positioning member 30 and the support body 421 cooperate to position the standard return part 10. At the same time, the limiting body 422 is located above the standard return part 10 to limit the standard return part 10 in the direction of the base 20 pointing to the driving member 44, so as to avoid shaking or displacement of the standard return part 10 during the detection process, which is beneficial to the accurate detection of the detection component 40.

[0041] See also Figure 1 In some embodiments, the detection device 100 further includes a cover member 50 , which is movably disposed above the base 20 , and the cover member 50 is used to cover the workpiece 200 carried by the base 20 to fix the workpiece 200 to the base 20 .

[0042] Thus, by providing the cover plate 50 , the cover plate 50 covers the workpiece 200 carried by the base 20 to fix the workpiece 200 to the base 20 , thereby preventing the workpiece 200 from shaking during the detection operation and ensuring accurate detection of the size of the workpiece 200 .

[0043] See also Figure 2 In some embodiments, a contoured body 51 is provided on a side of the cover plate 50 facing the base 20 , and the contoured body 51 is adapted to the workpiece 200 , and is used to fit the workpiece 200 .

[0044] In this way, by setting the above-mentioned contour body 51, since the contour body 51 is adapted to the workpiece 200, it can be ensured that the contour body 51 is stably attached to the upper surface of the workpiece 200, so that the cover plate 50 can stably fix the workpiece 200 to the base 20. At the same time, the contour body 51 can support the internal structure of the workpiece 200, thereby avoiding deformation of the workpiece 200 due to the abutment of the abutment portion 4122 during the detection process, avoiding deviation in its detection result, and further improving the detection accuracy.

[0045] See also Figure 2In some embodiments, the detection device 100 further includes a pressing member 60, which is disposed on the base 20 adjacent to the positioning member 30, and is used to press the cover plate member 50 to the base 20. Specifically, the pressing member 60 includes a pressing driving body 61 and a pressing body 62, wherein the pressing driving body 61 is disposed on the base 20 adjacent to the positioning member 30 and is detachably connected to the base 20, and the pressing body 62 is connected to the pressing driving body 61, and the pressing driving body 61 drives the pressing body 62 to rotate to the top of the cover plate member 50 and move close to the base 20 to press the cover plate member 50 to the base 20, and the setting position of the pressing driving body 61 can also be adjusted according to the use requirements.

[0046] In this way, by setting the above-mentioned clamping member 60, the clamping member 60 applies a certain clamping force to the cover member 50, so that the cover member 50 can stably fix the workpiece 200 to the base 20, thereby avoiding the workpiece 200 from shaking. At the same time, the cover member 50 is subjected to the clamping force of the clamping member 60, and the workpiece 200 placed on the base 20 can be shaped, thereby improving the product quality of the workpiece 200.

[0047] In some embodiments, the pressing member 60 further includes a control valve 63 , which is disposed on the base 20 and is connected to the pressing driving body 61 and an external air source (not shown) respectively.

[0048] In this way, by setting the above-mentioned control valve 63, the control valve 63 can open or close the gas passage between the external gas source and the clamping driving body 61 according to the detection requirements, ensuring that the clamping driving body 61 stably drives the clamping body 62 to clamp the cover plate 50.

[0049] It is understandable that there can be multiple pressing members 60, which are arranged at intervals on the base 20 and respectively abut against different positions of the cover member 50 to ensure stable pressing of the cover member 50. The multiple means two or more.

[0050] See also Figure 3 The embodiment of the present application further provides a detection method, which is applied to the above detection device 100 and is used to detect the size value of the workpiece 200. The above detection method includes steps S10 to S50.

[0051] In step S10 , the driving member 44 drives the telescopic body 412 to extend and drives the protruding body 413 to compress the elastic member 43 to the supporting member 42 , so that the standard return part 10 is placed on the base 20 , and the positioning member 30 positions the standard return part 10 .

[0052] Specifically, the driving body 441 drives the telescopic body 412 to extend, so that the end of the telescopic body 412 adjacent to the driving member 44 provides a sufficiently large placement space for the standard return part 10, so that the standard return part 10 can be stably placed on the base 20, and the positioning member 30 abuts against the standard return part 10 to position the standard return part 10 to prevent the standard return part 10 from swaying or shaking, so as to facilitate the subsequent zeroing detection of the standard return part 10 by the detection member 41.

[0053] In step S20 , the elastic member 43 drives the telescopic body 412 to retract and abut against a preset position of the standard return part 10 , so that the detection body 411 detects a first telescopic value of the telescopic body 412 .

[0054] Specifically, the compressed elastic member 43 elastically opens the reset driving protrusion 413 to drive the telescopic body 412 to retract, so that one end of the telescopic body 412 adjacent to the driving member 44 abuts against the preset position of the standard return part 10, so that the detection body 411 detects the first telescopic value of the telescopic body 412 based on the telescopic length of the telescopic body 412.

[0055] It can be understood that although the size of the standard return part 10 is a standard size, the positioning part 30 and the detection part 41 have certain tolerances. The telescopic body 412 is abutted against the preset position of the standard return part 10 to make the standard return part 10 suitable for the tolerances of the positioning part 30 and the detection part 41, and the standard size value of the standard return part 10 under this tolerance condition is obtained.

[0056] In step S30 , the driving member 44 drives the telescopic body 412 to extend and drives the protrusion 413 to compress the elastic member 43 to the supporting member 42 , so that the workpiece 200 to be inspected replaces the standard part 10 and is placed on the base 20 , and the positioning member 30 positions the workpiece 200 .

[0057] Specifically, the driving body 441 drives the telescopic body 412 to extend again and compresses the elastic member 43 to the supporting member 42, so that the telescopic body 412 loosens the standard return part 10 after inspection, so that the workpiece 200 to be inspected replaces the standard return part 10 and is placed on the base 20, and the positioning member 30 abuts against the predetermined position of the workpiece 200, so that the workpiece 200 to be inspected maintains the same orientation and placement position as the standard return part 10, which is convenient for subsequent inspection and comparison of the difference between the workpiece 200 and the standard return part 10.

[0058] In step S40 , the elastic member 43 drives the telescopic body 412 to retract and abut against a predetermined position of the workpiece 200 , so that the detection body 411 detects a second telescopic value of the telescopic body 412 .

[0059] Specifically, the compressed elastic member 43 elastically opens and resets and drives the protrusion 413 to drive the telescopic body 412 to retract, so that one end of the telescopic body 412 adjacent to the driving member 44 abuts against a predetermined position of the workpiece 200, so that the detection body 411 detects the second telescopic value of the telescopic body 412 based on the telescopic length of the telescopic body 412.

[0060] It can be understood that the workpiece 200 and the standard return part 10 are in the same testing environment, so the dimensional values ​​obtained by testing the workpiece 200 and the standard return part 10 are applicable to the tolerances of the positioning part 30 and the testing part 41.

[0061] Step S50 , determining the actual size value of the workpiece 200 based on the first telescopic value, the second telescopic value and the standard size value of the standard component 10 .

[0062] Specifically, based on the first expansion value and the second expansion value, the size difference between the standard return part 10 and the workpiece 200 under the same condition is obtained, and then based on the standard size value and the size difference of the standard return part 10, the actual size value of the workpiece 200 is determined.

[0063] The above-mentioned detection method executes the above-mentioned steps S10-S50, and obtains different telescopic values ​​respectively by the telescopic body 412 abutting against the preset position of the standard return part 10 and the predetermined position of the workpiece 200, thereby determining the size difference between the standard return part 10 and the workpiece 200 based on the first telescopic value and the second telescopic value and the standard size value of the standard return part 10, and then accurately determining the actual size value of the workpiece 200. The various components of the detection device 100 do not require complex mechanical structures and precise connections, thereby achieving the improvement of detection accuracy of the detection device 100 on the basis of low cost.

[0064] Please continue reading Figure 3 In some embodiments, before executing the above-mentioned step S40 "the elastic member 43 drives the telescopic body 412 to retract and abut against the preset position of the workpiece 200, so that the detection body 411 detects the second telescopic value of the telescopic body 412", the detection method also includes steps S31 and S32.

[0065] In step S31 , the cover member 50 covers the workpiece 200 on the base 20 , so that the cover member 50 supports the workpiece 200 .

[0066] Specifically, the workpiece 200 is covered to the base 20 by the cover member 50 so that the cover member 50 supports the internal structure of the workpiece 200 and ensures that the cover member 50 stably fixes the workpiece 200 to the base 20 to avoid shaking of the workpiece 200 during the detection process, which is beneficial to the accurate detection of the workpiece 200.

[0067] In step S32 , the pressing member 60 presses the cover member 50 to the base 20 , so that the cover member 50 shapes the workpiece 200 .

[0068] Specifically, the clamping force is applied to the cover plate member 50 through the clamping member 60, so that the cover plate member 50 supporting the internal structure of the workpiece 200 shapes the workpiece 200, so that the workpiece 200 maintains the preset structure, avoiding the workpiece 200 from being deformed by external force factors and the abutment of the telescopic body 412 during the detection process, which is beneficial to improving the product quality and detection accuracy of the workpiece 200.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A detection device, characterized in that: include: Standardized parts with standard size values; A base, used for carrying the standard parts, or carrying a workpiece to be inspected that can replace the standard parts; A positioning member, disposed on the base, and used to abut against the standard component or the workpiece to position the standard component or the workpiece; and The detection component comprises a detection member, a support member, an elastic member and a driving member, wherein the detection member comprises a detection body, a telescopic body and a protrusion, wherein the detection body and the positioning member are arranged at intervals on the base, the telescopic body is connected to the detection body and can telescopically move relative to the detection body, the protrusion is protruding from the side wall of the telescopic body, the support member is arranged on the base adjacent to the detection body and sleeved on the telescopic body, the support member is used to guide the movement direction of the telescopic body, the elastic member is sleeved on the telescopic body, the two ends of the elastic member are elastically abutted against the support member and the protrusion respectively, the driving member is connected to the telescopic body, the driving member is used to drive the telescopic body to extend and drive the protrusion to compress the elastic member to the support member, so that the standard return part or the workpiece is placed on the base, the compressed elastic member is used to elastically open and reset and drive the telescopic body to abut against the preset position of the standard return part or the predetermined position of the workpiece, so that the detection member detects the actual size value of the workpiece based on the telescopic length of the telescopic body and the standard size value of the standard return part.

2. The detection device according to claim 1, characterized in that The positioning member is provided with a positioning groove, and the positioning groove has a first positioning surface and a second positioning surface which are vertically connected, and the first positioning surface and the second positioning surface are used to respectively abut against different positions of the workpiece or the standard return part.

3. The detection device according to claim 1, characterized in that: The base is provided with a plurality of adjustment holes at intervals, and the positioning member is detachably connected to the base through the corresponding adjustment holes.

4. The detection device according to claim 1, characterized in that: The driving member comprises a driving body and a connecting body, wherein the driving body is arranged at one side of the supporting member and connected to the connecting body, and a mounting groove is provided at one side of the connecting body away from the detecting body; The telescopic body includes a telescopic part and an abutment part, one end of the telescopic part is passed through the connecting body and extends into the mounting groove, the other end of the telescopic part is movably passed through the elastic member and the supporting member and is connected to the detection body, one end of the abutment part is connected to the telescopic part and is clamped with the mounting groove, and the other end of the abutment part extends out of the mounting groove for abutting the standard return part or the workpiece.

5. The detection device according to claim 4, characterized in that: The cross-sectional area of ​​the abutting portion decreases gradually along a direction from one end of the abutting portion adjacent to the telescopic portion toward the other end of the abutting portion away from the telescopic portion.

6. The detection device according to claim 1, characterized in that: The detection device also includes: A cover plate is movably disposed above the base, and is used to cover the workpiece supported by the base to fix the workpiece to the base.

7. The detection device according to claim 6, characterized in that: A contoured body is provided on one side of the cover plate facing the base, the contoured body is matched with the workpiece, and the contoured body is used to fit the workpiece.

8. The detection device according to claim 6, characterized in that: The detection device also includes: A pressing member is disposed on the base adjacent to the positioning member, and is used for pressing the cover plate member to the base.

9. A detection method, applied to the detection device according to any one of claims 1 to 8, characterized in that: The detection method comprises: The driving member drives the telescopic body to extend and drives the protruding body to compress the elastic member to the supporting member, so that the standard return part is placed on the base, and the positioning member positions the standard return part; The elastic member drives the telescopic body to retract and abut against a preset position of the standard return part, so that the detection body detects a first telescopic value of the telescopic body; The driving member drives the telescopic body to extend and drives the protruding body to compress the elastic member to the supporting member, so that the workpiece to be inspected replaces the standard part and is placed on the base, and the positioning member positions the workpiece; The elastic member drives the telescopic body to retract and abut against a predetermined position of the workpiece, so that the detection body detects a second telescopic value of the telescopic body; Based on the first telescopic value, the second telescopic value and the standard size value of the standard part, the actual size value of the workpiece is determined.

10. The detection method according to claim 9, characterized in that: Before the step of "the elastic member drives the telescopic body to retract and abut against a preset position of the workpiece so that the detection body detects the second telescopic value of the telescopic body", the detection method further includes: A cover plate member covers the workpiece to the base so that the cover plate member supports the workpiece; The pressing member presses the cover member to the base so that the cover member shapes the workpiece.

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