A floating type self-adaptive hole diameter detection mechanism and detection equipment

Abstract

The application relates to a floating self-adaptive hole inner diameter detection mechanism and a detection device, which comprise a detection sleeve, an elastic member and a detection member. The detection sleeve is provided with a first accommodating cavity. First and second limiting portions are arranged at an inner side wall of the first accommodating cavity at a certain distance. The elastic member is arranged between the first and second limiting portions. The detection member is provided with a third limiting portion. The third limiting portion cooperates with the second limiting portion, so that the detection member is at least partially arranged between the first and second limiting portions. An abutting portion is arranged at one end of the detection member close to the second limiting portion. The abutting portion abuts one end of the elastic member. The other end of the elastic member abuts the first limiting portion. A go gauge is arranged at one end of the detection member away from the second limiting portion. The floating self-adaptive hole inner diameter detection mechanism and the detection device can detect whether the minimum inner diameter of a detected hole meets the requirements, regardless of whether the axis of the go gauge and the axis of the detected hole are offset.

Description

Technical Field

[0001] This invention relates to the field of workpiece inspection technology, specifically to a floating adaptive hole inner diameter detection mechanism and inspection equipment. Background Technology

[0002] Due to the development of high-precision manufacturing, enterprises have increasingly higher requirements for the accuracy of hole sizes in parts. When determining whether the minimum inner diameter of a part's hole meets the requirements, the inspection methods are mainly divided into contact measurement and non-contact measurement. Contact measurement mainly includes gauge measurement, micrometer measurement, and pneumatic measuring instrument measurement, but these methods all rely on operator experience, their accuracy is affected by human error, and their inspection efficiency is relatively low. Non-contact measurement mainly includes optical measurement, laser scanning measurement, and visual inspection, but these methods have relatively high environmental requirements. Moreover, existing inspection methods can only detect the inner diameter of the hole opening, not the inner diameter of the hole itself, and therefore cannot determine whether the hole meets the accuracy requirements.

[0003] Currently, by automatically driving a gauge to pass through the hole being inspected and move along the extension direction of the hole, when the axis of the gauge and the axis of the hole being inspected are in a straight line, it can detect whether the minimum inner diameter of the hole opening meets the requirements, and also whether the minimum inner diameter inside the hole meets the requirements. However, when errors cause a certain offset between the axis of the gauge and the axis of the hole being inspected, the gauge cannot detect whether the minimum inner diameter inside the hole meets the requirements. Therefore, this method has low inspection efficiency and a high false judgment rate. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a floating adaptive hole inner diameter detection mechanism and detection device that can detect whether the minimum inner diameter of the hole meets the requirements, regardless of whether the axis of the gauge and the axis of the hole being detected are offset.

[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0006] According to a first aspect of this application, a floating adaptive bore diameter detection mechanism is provided, comprising:

[0007] A detection sleeve, the detection sleeve having a first receiving cavity, the inner sidewall of the first receiving cavity being provided with a first limiting part and a second limiting part at a certain distance;

[0008] An elastic element is disposed between the first limiting portion and the second limiting portion;

[0009] The detection element has a third limiting part, which cooperates with the second limiting part so that the detection element is at least partially disposed between the first limiting part and the second limiting part. The detection element has an abutting part at one end near the first limiting part, which abuts against one end of the elastic element. The other end of the elastic element abuts against the first limiting part. The detection element has a go gauge at one end away from the first limiting part.

[0010] Where the outer diameter of the go gauge is less than or equal to the inner diameter of the hole to be inspected in the part being inspected, the go gauge can be inserted into the hole to be inspected and move along the extension direction of the hole to be inspected.

[0011] In some embodiments of this application, based on the foregoing scheme, a pressure sensing element is further included. The pressure sensing element is disposed on the detection element and is used to detect the pressure on the gauge. When the pressure detected by the pressure sensor is less than or equal to a pressure threshold, the gauge can pass through the detection hole and move along the extension direction of the detection hole.

[0012] In some embodiments of this application, based on the foregoing scheme, a position detection block is further included. The position detection block is disposed on the detection element and extends from the first receiving cavity. The axis of the position detection block and the axis of the gauge are on a straight line. The distance between the axis of the detected hole and the axis of the position detection block is less than or equal to a preset distance threshold, and / or the angle between the axis of the detected hole and the axis of the position detection block is less than or equal to a preset angle threshold.

[0013] In some embodiments of this application, based on the foregoing scheme, the elastic element includes an annular elastic portion, which is a wave-shaped gasket or a disc spring, and the abutting portion is an annular abutting surface.

[0014] In some embodiments of this application, based on the foregoing scheme, the elastic member further includes a gasket and a support portion, the gasket and the support portion being disposed between the elastic member and the abutment portion, the support portion including a retainer and ball bearings, the retainer having a plurality of annularly distributed first through holes, and ball bearings being disposed in the first through holes.

[0015] In some embodiments of this application, based on the aforementioned scheme, the first receiving cavity includes a first through cavity, a second limiting part, and a second through cavity arranged sequentially from top to bottom. The inner diameter of the second through cavity is smaller than the inner diameter of the first through cavity. The first limiting part is disposed on the inner sidewall of the first through cavity. The end of the detection element near the second limiting part includes a first column, a third limiting part, and a second column arranged sequentially from top to bottom. The inner diameter of the first column is larger than the inner diameter of the second through cavity. The first column is disposed between the first limiting part and the second limiting part. The abutting part is disposed on the first column. The first column is disposed in the first through cavity and the outer diameter of the first column is smaller than the inner diameter of the first through cavity. The second column is disposed in the second through cavity and the outer diameter of the second column is smaller than the inner diameter of the second through cavity. The difference between the inner diameter of the first through cavity and the outer diameter of the first column is a first difference value, and the difference between the inner diameter of the second through cavity and the outer diameter of the second column is a second difference value.

[0016] In some embodiments of this application, based on the foregoing scheme, the third limiting part is a first annular inclined surface, the second limiting part is a second annular inclined surface, and the first annular inclined surface abuts against the second annular inclined surface.

[0017] According to a second aspect of this application, a floating adaptive bore diameter detection device is provided, comprising:

[0018] The aforementioned floating adaptive bore diameter detection mechanism;

[0019] Support frame;

[0020] Support components, mounted on a support frame, are used to fix the part being tested;

[0021] The first sliding mechanism, mounted on the support frame, is used to drive the detection sleeve to move in a first direction, which is the axial direction of the detection hole of the part being detected.

[0022] In some embodiments of this application, based on the foregoing scheme, a rotating mechanism is further included. The rotating mechanism includes a rotating seat and a second driving member. The rotating seat has a second receiving cavity for accommodating the part to be tested, and the second driving member is used to drive the rotating seat to rotate.

[0023] In some embodiments of this application, based on the foregoing scheme, a stopper and a second sliding mechanism are further included. The stopper is provided with a stopper groove, and the second sliding mechanism is disposed on a support frame for driving the stopper to move in a second direction so that the stopper groove at least partially blocks the part to be tested. The second direction is tilted at a certain angle relative to the first direction.

[0024] The beneficial effects of this application are as follows:

[0025] (1) The floating adaptive hole inner diameter detection mechanism and detection equipment provided in this application can detect the tested parts when the outer diameter of the GO gauge is less than or equal to the inner diameter of the tested hole of the tested part. If the error causes a certain offset between the axis of the GO gauge and the axis of the tested hole, the floating adaptive hole inner diameter detection mechanism provided in this embodiment will make the GO gauge adapt to the tested hole and detect the tested parts whose minimum inner diameter of the tested hole meets the requirements. This prevents the tested parts from being mistakenly identified as unqualified tested parts. Only when the outer diameter of the GO gauge is greater than the inner diameter of the tested hole of the tested part can the tested parts whose minimum inner diameter of the tested hole does not meet the requirements be detected. Therefore, the floating adaptive hole inner diameter detection mechanism and detection equipment provided in this application has high detection efficiency and low misjudgment rate.

[0026] (2) The floating adaptive bore diameter detection mechanism and detection equipment provided in this application are equipped with a pressure sensor. When the pressure detected by the pressure sensor is less than or equal to the pressure threshold, the detection sleeve is driven to move along the extension direction of the bore being detected. When the pressure detected by the pressure sensor is greater than the pressure threshold, the detection sleeve is no longer driven to move along the extension direction of the bore being detected, and the gu gauge is removed from the bore being detected to prevent the gu gauge and the detected part from being damaged.

[0027] (3) The floating adaptive hole inner diameter detection mechanism and detection equipment provided in this application are equipped with a position detection block to prevent the superposition of the size error, position error and shape error of the hole being detected from being too large, and can determine the position of the gauge in real time.

[0028] (4) The floating adaptive hole inner diameter detection mechanism and detection equipment provided in this application make the go gauge adaptive to the hole being detected through the annular elastic part. The annular elastic part can provide sufficient elastic force, which is suitable for small deformation scenarios.

[0029] (5) The floating adaptive hole inner diameter detection mechanism and detection equipment provided in this application drive the detection part by setting a rotating mechanism. When the axis of the detection hole of the detection part is offset, the position of the detection part can be finely adjusted by rotating the detection part, which can also further help the gauge continue to move along the extension direction of the detection hole.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are intended to explain the invention, but do not constitute an undue limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a floating adaptive bore diameter detection mechanism according to the present invention;

[0033] Figure 2 This is a cross-sectional view of a floating adaptive bore diameter detection mechanism according to the present invention.

[0034] Figure 3 This is a schematic diagram of the structure of a floating adaptive bore diameter detection device according to the present invention;

[0035] Figure 4 This is a schematic diagram of the rotating mechanism and driving assembly of the present invention;

[0036] Figure 5 This is a cross-sectional view of the rotating mechanism and driving assembly of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the material stop and the second sliding mechanism of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the support frame, support member and first sliding mechanism of the present invention;

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 10. Detection sleeve; 11. First receiving cavity; 111. First through cavity; 112. Second limiting part; 113. Second through cavity; 12. First limiting part; 20. Elastic element; 21. Annular elastic part; 22. Gasket; 23. Support part; 231. Retainer; 232. Ball; 30. Detection element; 31. Third limiting part; 32. Abutting part; 33. First column; 34. Second column; 35. First mounting hole; 36. Second mounting hole; 40. Pressure sensing element; 50. Position detection block; 60. Go gauge; 70. Support frame; 80. Support element; 90. 91. First sliding mechanism; 92. First slide rail; 100. First slider; 101. Stopper; 110. Stop groove; 120. Second sliding mechanism; 121. Rotating mechanism; 122. Rotating seat; 123. Second driving component; 130. Detected part; 131. Detected hole; 140. Drive assembly; 141. Motor base; 142. Coupling; 143. Bearing seat; 144. Bearing; 145. Rotating shaft; 146. Locking nut; 147. Bearing bushing; 148. Pressure ring; 150. In-situ detection sensor; 160. Distance detection sensor. Detailed Implementation

[0041] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0042] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0043] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0044] Example 1

[0045] This embodiment provides a floating adaptive bore diameter detection mechanism. Please refer to [link / reference]. Figure 3 As shown, the inner diameter of the inspection hole 131 of the inspected part 130 is specifically inspected to detect the inspected part 130 whose inner diameter of the inspection hole 131 is greater than the minimum inner diameter of the hole, and the inspected part 130 whose inner diameter of the inspection hole 131 is less than or equal to the minimum inner diameter of the hole. Thus, the inspected part 130 that meets the requirements is determined. The inspected part 130 whose inner diameter of the inspection hole 131 is greater than the minimum inner diameter of the hole does not meet the requirements, and the inspected part 130 whose inner diameter of the inspection hole 131 is less than or equal to the minimum inner diameter of the hole meets the requirements.

[0046] This embodiment provides a floating adaptive bore diameter detection mechanism. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 As shown, it includes a detection sleeve 10, an elastic element 20, and a detection element 30.

[0047] The detection sleeve 10 has a first receiving cavity 11, and the inner sidewall of the first receiving cavity 11 is provided with a first limiting part 12 and a second limiting part 112 at a certain distance.

[0048] The elastic element 20 is disposed between the first limiting part 12 and the second limiting part 112.

[0049] The detection element 30 is provided with a third limiting part 31, which cooperates with the second limiting part 112 so that the detection element 30 is at least partially disposed between the first limiting part 12 and the second limiting part 112. The end of the detection element 30 near the first limiting part 12 is provided with an abutting part 32, which abuts against one end of the elastic member 20. The other end of the elastic member 20 abuts against the first limiting part 12. The end of the detection element 30 away from the first limiting part 12 is provided with a gauge 60.

[0050] When the outer diameter of the go gauge 60 is less than or equal to the inner diameter of the inspection hole 131 of the inspected part 130, the go gauge 60 can penetrate the inspection hole 131 and move along the extension direction of the inspection hole 131.

[0051] This embodiment provides a floating adaptive bore diameter detection mechanism. Please refer to [link to relevant documentation]. Figures 1-3 As shown, when inspecting the inner diameter of the inspection hole 131 of the inspected part 130, the driving inspection sleeve 10 moves along the extension direction of the inspection hole 131, allowing the gauge 60 to pass through the inspection hole 131 and move along the extension direction of the inspection hole 131. If the movement of the gauge 60 is stuck, it indicates that there is a position inside the inspection hole 131 with an inner diameter larger than the outer diameter of the gauge 60, or that an error causes a certain offset between the axis of the gauge 60 and the axis of the inspection hole 131. At this time, the inner wall of the inspection hole 131 contacts the gauge 60, thereby applying slight pressure to the gauge 60 and the inspection element 30. Since one end of the inspection element 30 near the first limiting part 12 abuts against one end of the elastic element 20, and the other end of the elastic element 20 abuts against the first limiting part 12, when the gauge 60 and the inspection element 30 are squeezed, the elastic element 20 will also be compressed, and the outer diameter of the gauge 60 will be compressed. When the inner diameter of the test hole 131 of the tested part 130 is less than or equal to the inner diameter of the test hole 131, the GO gauge 60 and the test element 30 will deflect, causing the GO gauge 60 to adapt to the test hole 131 and drive the test sleeve 10 to move along the extension direction of the test hole 131. This allows the GO gauge 60 to continue moving along the extension direction of the test hole 131 until it has moved completely. This detects the tested part 130 whose inner diameter of the test hole 131 is less than or equal to the minimum inner diameter of the hole, thus identifying the tested part 130 that meets the requirements. When the outer diameter of the GO gauge 60 is greater than the inner diameter of the test hole 131 of the tested part 130, the GO gauge 60 cannot continue to move along the extension direction of the test hole. This detects the tested part 130 whose inner diameter of the test hole 131 is greater than the minimum inner diameter of the hole, thus identifying the tested part 130 that does not meet the requirements.

[0052] In some implementations of this embodiment, please refer to Figures 1-3As shown, it also includes a pressure sensor 40, which is disposed on the detection element 30. The pressure sensor 40 is used to detect the pressure on the gauge 60. When the gauge 60 can pass through the detection hole 131 and move along the extension direction of the detection hole 131, if the movement of the gauge 60 is stuck, it indicates that there is a position inside the detection hole 131 with an inner diameter larger than the outer diameter of the gauge 60, or that an error causes a certain offset between the axis of the gauge 60 and the axis of the detection hole 131. If the pressure detected by the pressure sensor 40 is less than or equal to the pressure threshold, it indicates that the outer diameter of the gauge 60 is less than or equal to the inner diameter of the hole 131 being tested. This error causes a certain offset between the axis of the gauge 60 and the axis of the hole 131 being tested, causing the movement of the gauge 60 to become stuck. The sensor sleeve 10 is then driven to move along the extension direction of the hole 131, allowing the gauge 60 to continue moving along the extension direction of the hole 131. If the pressure detected by the pressure sensor 40 is greater than the pressure threshold, it indicates that the outer diameter of the gauge 60 is greater than the inner diameter of the hole 131 being tested. The sensor sleeve 10 is no longer driven to move along the extension direction of the hole 131 being tested, and the gauge 60 is removed from the hole 131 being tested to prevent the gauge 60 and the tested part 130 from being damaged.

[0053] In some implementations of this embodiment, please refer to Figures 1-3 As shown, the pressure sensor 40 can be located at the end of the go gauge 60. When the movement of the go gauge 60 is blocked, the end of the go gauge 60 can directly sense the pressure. The pressure sensor 40 can be a pressure strain gauge. The pressure sensor 40 can also be located on the detection element 30. Since the go gauge 60 is located at the end of the detection element 30 away from the first limiting part 12, when the movement of the go gauge 60 is blocked, the go gauge 60 can transmit the pressure to the detection element 30, and the pressure can then be detected by the pressure sensor 40.

[0054] In some implementations of this embodiment, please refer to Figures 1-3As shown, to ensure inspection accuracy and prevent excessive accumulation of dimensional, positional, and shape errors in the inspected hole 131, the position of the GO gauge 60 needs to be determined. This ensures that when inspecting the inner diameter of the inspected hole 131 in the inspected part 130, the axis of the GO gauge 60 and the axis of the inspected hole 131 are as straight as possible. This ensures that the distance between the axis of the inspected hole 131 and the axis of the GO gauge 60 is less than or equal to a preset distance threshold, and / or the angle between the axis of the inspected hole 131 and the axis of the GO gauge 60 is less than or equal to a preset angle threshold, preventing the GO gauge 60's axis from intersecting with the inspected hole 131. The excessive deviation of the axis of the hole 131 to be tested in part 130 leads to a decrease in detection accuracy. The part also includes a position detection block 50, which is disposed on the detection part 30 and extends from the first receiving cavity 11. The axis of the position detection block 50 and the axis of the gauge 60 are on a straight line. The axis of the gauge 60 is obtained by detecting the position of the axis of the position detection block 50. The distance between the axis of the hole 131 to be tested and the axis of the position detection block 50 is less than or equal to a preset distance threshold, and / or the angle between the axis of the hole 131 to be tested and the axis of the position detection block 50 is less than or equal to a preset angle threshold.

[0055] In some embodiments of this example, the position of the position detection block 50 is detected by means of a grating ruler, a linear displacement sensor, a laser displacement sensor, etc.

[0056] In some implementations of this embodiment, please refer to Figures 1-3 As shown, the position detection block 50 and the detection element 30 are an integrated structure.

[0057] In some implementations of this embodiment, please refer to Figure 1 and Figure 2 As shown, since the error of the detected hole 131 is usually small, the wave washer and disc spring can provide sufficient elasticity within a small deformation range (usually 0.1~1mm), which is suitable for small deformation scenarios. Therefore, the elastic element 20 includes an annular elastic part 21, which is a wave washer or disc spring. The abutment part 32 is an annular abutment surface. The annular abutment surface is provided at the end of the detection element 30 near the second limiting part 112. The annular abutment surface abuts against one end of the annular elastic part 21, and the other end of the annular elastic part 21 abuts against the first limiting part 12.

[0058] In some implementations of this embodiment, please refer to Figure 1 and Figure 2As shown, to avoid stress concentration, the elastic element 20 also includes a gasket 22. To further auto-align and compensate for angles, accelerate response, and reduce wear, the elastic element 20 also includes a gasket 22 and a support portion 23. Specifically, the gasket 22 and the support portion 23 are disposed between the elastic element 20 and the abutment portion 32. The support portion 23 includes a retainer 231 and balls 232. The retainer 231 has several annularly distributed first through holes, and balls 232 are disposed within the first through holes. The balls 232 contact the gasket 22 and the annular abutment surface.

[0059] In some implementations of this embodiment, please refer to Figure 1 and Figure 2 As shown, when the outer diameter of the go gauge 60 is less than or equal to the inner diameter of the inspection hole 131 of the inspected part 130, the interior of the inspection hole 131 may also have excessive offset. This situation also needs to be detected. That is, it is necessary to exclude the situation where the distance between the axis of the inspection hole 131 and the axis of the go gauge 60 is greater than a preset distance threshold, and / or the angle between the axis of the inspection hole 131 and the axis of the go gauge 60 is greater than a preset angle threshold. Therefore, it is necessary to limit the deflection angle and deflection distance of the go gauge 60. Specifically, the first receiving cavity 11 includes a first through cavity 111, a second limiting part 112, and a second through cavity 113 arranged sequentially from top to bottom. The inner diameter of the second through cavity 113 is smaller than the inner diameter of the first through cavity 111. The first limiting part 12 is disposed on the inner wall of the first through cavity 111. The end of the detection element 30 near the second limiting part 112 includes a first column 33, a third limiting part 31, and a second column 34 arranged sequentially from top to bottom. The inner diameter of the first column 33 is larger than the inner diameter of the second through cavity 113. A first column 33 is disposed between the first limiting part 12 and the second limiting part 112, and an abutting part 32 is disposed on the first column 33. The first column 33 is disposed in the first through cavity 111 and the outer diameter of the first column 33 is smaller than the inner diameter of the first through cavity 111. The second column 34 is disposed in the second through cavity 113 and the outer diameter of the second column 34 is smaller than the inner diameter of the second through cavity 113. The difference between the inner diameter of the first through cavity 111 and the outer diameter of the first column 33 is a first difference value, and the difference between the inner diameter of the second through cavity 113 and the outer diameter of the second column 34 is a second difference value.

[0060] In some embodiments of this example, a first difference and a second difference are determined based on the deflection angle and deflection distance of the gauge 60, such that the first difference is less than a first difference threshold and the second difference is less than a second difference threshold.

[0061] In some implementations of this embodiment, please refer to Figure 1 and Figure 2 As shown, the third limiting part 31 is a first annular inclined surface, and the second limiting part 112 is a second annular inclined surface, with the first annular inclined surface abutting against the second annular inclined surface.

[0062] Specifically, please refer to Figure 1 and Figure 2 As shown, the detection sleeve 10 has a cylindrical structure and a first receiving cavity 11 inside. The first receiving cavity 11 includes a first through cavity 111, a second limiting part 112 and a second through cavity 113 arranged sequentially from top to bottom. The inner diameter of the second through cavity 113 is smaller than the inner diameter of the first through cavity 111. The first limiting part 12 is disposed in the first through cavity 111. The first limiting part 12 has an annular structure and a second through hole is provided in the middle of the first limiting part 12. The detection element 30 has a cylindrical structure and includes a first column 33, a third limiting part 31, and a second column 34 arranged sequentially from top to bottom. The first column 33 has a downwardly extending first mounting hole 35 at the middle of its end and an annular abutment surface at its end, which is located around the first mounting hole 35 and abuts against a plurality of balls 232. The first mounting hole 35 is used to install a position detection block 50. The position detection block 50 extends upward into a first through cavity 111 to facilitate the detection of the axis of the position detection block 50. The position detection block 50 and the detection element 30 are an integral structure. The second column 34 has an upwardly extending second mounting hole 36 at the middle of its end, and a go gauge 60 is snapped and fixed in the second mounting hole 36. The axes of the first mounting hole 35, the position detection block 50, the second mounting hole 36, and the go gauge 60 are all on a straight line.

[0063] Example 2

[0064] Example 2 provides a floating adaptive bore diameter detection device. Please refer to [link / reference]. Figures 3-7 As shown, it includes:

[0065] The aforementioned floating adaptive bore diameter detection mechanism;

[0066] Support frame 70;

[0067] Support member 80, mounted on support frame 70, is used to fix the part 130 to be tested;

[0068] The first sliding mechanism 90 is mounted on the support frame 70 and is used to drive the detection sleeve 10 to move in the first direction, which is the axial direction of the detection hole 131 of the part being detected 130.

[0069] In some embodiments of this example, the first sliding mechanism 90 is a ball screw mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism; this example does not limit this type of mechanism.

[0070] Specifically, please refer to Figure 3 and Figure 7As shown, the first sliding mechanism 90 includes a first slider 92 and a first slide rail 91. The first slide rail 91 is fixed to the support frame 70, the first slider 92 is slidably connected to the first slide rail 91, the detection sleeve 10 is fixed to the first slider 92, and the first driving member drives the first slider 92 to move along the first slide rail 91. The extension direction of the first slide rail 91 is parallel to the axial direction of the detection hole 131 of the detected part 130. The first driving member is a rotary motor, a linear motor, a hydraulic cylinder, or a pneumatic cylinder. When the first driving member is a linear motor, a hydraulic cylinder, or a pneumatic cylinder, the output shaft of the first driving member is fixedly connected to the first slider 92. When the first driving member is a rotary motor, the output shaft of the rotary motor is fixedly connected to the first lead screw. The first slider 92 and the first lead screw are connected through the first lead screw nut.

[0071] In some implementations of this embodiment, please refer to Figure 3 and Figure 6 As shown, it also includes a material stop 100 and a second sliding mechanism 110. The material stop 100 is provided with a material stop groove 101. The second sliding mechanism 110 is provided on the support frame 70 and is used to drive the material stop 100 to move in a second direction so that the material stop groove 101 at least partially blocks the part to be tested 130. The second direction is tilted at a certain angle relative to the first direction.

[0072] In some embodiments of this example, the second sliding mechanism 110 is a ball screw mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism; this example does not limit this type of mechanism.

[0073] In one specific embodiment, the hydraulic drive mechanism includes a hydraulic drive component, and the stop component 100 is fixed on the output shaft of the hydraulic drive component.

[0074] In some implementations of this embodiment, please refer to Figures 3-5 As shown, it also includes a rotating mechanism 120, which includes a rotating seat 121 and a second driving member 122. The rotating seat 121 has a second receiving cavity for accommodating the part to be tested 130. The rotating seat 121 is driven to rotate by the second driving member 122.

[0075] Thus, by setting the rotating mechanism 120 to drive the inspected part 130, when the axis of the inspected hole 131 of the inspected part 130 is offset, the position of the inspected part 130 can be finely adjusted by rotating the inspected part 130, which can further help the gauge 60 continue to move along the extension direction of the inspected hole 131.

[0076] Specifically, please refer to Figures 3-5As shown, it also includes a drive assembly 140, which includes a motor base 141, a coupling 142, a bearing housing 143, a bearing 144, a rotating shaft 145, a locking nut 146, a bearing bushing 147, and a clamping ring 148. The second drive component 122 is a second motor, which is fixed to the motor base 141. The output shaft of the second motor is fixedly connected to one end of the coupling 142, and the other end of the coupling 142 is fixedly connected to one end of the rotating shaft 145. The other end of the rotating shaft 145 is fixedly connected to the rotating base 121. To ensure smooth rotation of the rotating shaft 145, the bearing... The bearing seat 143 is sleeved on the outside of the rotating shaft 145. The bearing seat 143 and the rotating shaft 145 are connected by the bearing 144. The bearing seat 143 is fixed relative to the rotating shaft 145. Two bearings 144 are arranged between the bearing seat 143 and the rotating shaft 145 at a certain distance. One end of the bearing bushing 147 abuts against one end of the first bearing 144, and the other end abuts against one end of the second bearing 144. The locking nut 146 is fixed to the rotating shaft 145 and abuts against the other end of the first bearing 144. The clamping ring 148 is fixed to the rotating shaft 145 and abuts against the other end of the second bearing 144.

[0077] In some implementations of this embodiment, please refer to Figure 3 and Figure 4 As shown, it also includes an in-situ detection sensor 150, which is used to detect whether the part 130 being tested is housed in the second receiving cavity. The in-situ detection sensor 150 can be a fiber optic sensor, a laser sensor, or an infrared sensor, and this embodiment does not limit it to this type.

[0078] In some implementations of this embodiment, please refer to Figure 3 As shown, it also includes a distance detection sensor 160, which detects the vertical movement distance of the go gauge 60 to obtain the position of the end of the go gauge 60. Specifically, in this embodiment, the distance detection sensor 160 detects the vertical movement distance of the pressure sensor 40 to detect the vertical movement distance of the go gauge 60, thereby obtaining the position of the end of the go gauge 60.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A floating adaptive bore diameter detection mechanism, characterized in that, include: A detection sleeve, the detection sleeve having a first receiving cavity, the inner sidewall of the first receiving cavity being provided with a first limiting part and a second limiting part at a certain distance; An elastic element is disposed between the first limiting portion and the second limiting portion; The detection element has a third limiting part, which cooperates with the second limiting part so that the detection element is at least partially disposed between the first limiting part and the second limiting part. The detection element has an abutting part at one end near the first limiting part, which abuts against one end of the elastic element. The other end of the elastic element abuts against the first limiting part. The detection element has a go gauge at one end away from the first limiting part. A pressure sensor is disposed on the detection element. The pressure sensor is used to detect the pressure on the gauge. When the pressure detected by the pressure sensor is less than or equal to a pressure threshold, the gauge can pass through the detection hole and move along the extension direction of the detection hole. Wherein, when the outer diameter of the go gauge is less than or equal to the inner diameter of the hole to be tested in the part being tested, the go gauge can pass through the hole to be tested and move along the extension direction of the hole to be tested. The first receiving cavity includes a first through cavity, a second limiting part and a second through cavity arranged sequentially from top to bottom. The inner diameter of the second through cavity is less than the inner diameter of the first through cavity. The first limiting part is disposed on the inner side wall of the first through cavity. The end of the testing piece near the second limiting part includes a first column, a third limiting part and a second column arranged sequentially from top to bottom. The inner diameter of the first column is greater than the inner diameter of the second through cavity. The first column is disposed between the first limiting part and the second limiting part. The abutting part is disposed on the first column. The first column is disposed in the first through cavity and the outer diameter of the first column is less than the inner diameter of the first through cavity. The second column is disposed in the second through cavity and the outer diameter of the second column is less than the inner diameter of the second through cavity. The difference between the inner diameter of the first through cavity and the outer diameter of the first column is a first difference value. The difference between the inner diameter of the second through cavity and the outer diameter of the second column is a second difference value.

2. The floating adaptive bore diameter detection mechanism according to claim 1, characterized in that: It also includes a position detection block, which is disposed on the detection element and extends from the first receiving cavity. The axis of the position detection block and the axis of the gauge are on a straight line. The distance between the axis of the detected hole and the axis of the position detection block is less than or equal to a preset distance threshold, and / or the angle between the axis of the detected hole and the axis of the position detection block is less than or equal to a preset angle threshold.

3. The floating adaptive bore diameter detection mechanism according to claim 1, characterized in that: The elastic element includes an annular elastic portion, which is a wave-shaped washer or a disc spring, and the abutting portion is an annular abutting surface.

4. The floating adaptive bore diameter detection mechanism according to claim 3, characterized in that: The elastic element further includes a gasket and a support portion, the gasket and the support portion being disposed between the elastic element and the abutment portion, the support portion including a retainer and ball bearings, the retainer having a plurality of annularly distributed first through holes, and ball bearings being disposed within the first through holes.

5. The floating adaptive bore diameter detection mechanism according to claim 1, characterized in that: The third limiting part is a first annular inclined surface, the second limiting part is a second annular inclined surface, and the first annular inclined surface abuts against the second annular inclined surface.

6. A floating adaptive bore diameter detection device, characterized in that, include: The floating adaptive bore diameter detection mechanism according to any one of claims 1-5; Support frame; Support components, mounted on a support frame, are used to fix the part being tested; The first sliding mechanism, mounted on the support frame, is used to drive the detection sleeve to move in a first direction, which is the axial direction of the detection hole of the part being detected.

7. The floating adaptive bore diameter detection device according to claim 6, characterized in that: It also includes a rotating mechanism, which includes a rotating base and a second driving member. The rotating base has a second receiving cavity for accommodating the part to be tested, and the second driving member is used to drive the rotating base to rotate.

8. The floating adaptive bore diameter detection device according to claim 7, characterized in that: It also includes a material stop and a second sliding mechanism. The material stop is provided with a material stop groove, and the second sliding mechanism is provided on the support frame for driving the material stop to move in a second direction so that the material stop groove at least partially blocks the part being tested. The second direction is tilted at a certain angle relative to the first direction.

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