Hole detection device
By designing a hole detection device including a detection axis, a detection frame, a pass gauge component and a stop gauge component, the problem of high detection cost of the existing three-dimensional coordinate measuring machine is solved, and low-cost, efficient hole concentricity and center distance detection is achieved .
Patent Information
- Application Number
- CN202420900439.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When the existing three-coordinate measuring machine is used to detect the concentricity and center distance of the parts to be tested, the cost is high, resulting in an increase in the detection cost.
A hole detection device is designed, including a detection shaft, a detection frame, a pass gauge component and a stop gauge component. Through the cooperation of these components, the concentricity and center distance of the holes in the part to be tested can be manually inspected for qualification.
The device can complete detection using simple tools, effectively reducing detection costs while improving detection accuracy and efficiency.
Smart Images
Figure CN222364534U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of detection equipment, and in particular relates to a hole detection device. Background Art
[0002] There is a part to be tested, which has multiple holes. The degree of deviation of the center of each hole is concentricity, and the distance between the centers of each hole is center distance. The concentricity and center distance should meet the factory standards.
[0003] In the related art, the concentricity and center distance of the part to be measured are detected by a three-dimensional coordinate measuring machine. The three-dimensional coordinate measuring machine includes a probe, which contacts various surfaces of the part to be measured to obtain the coordinates of multiple contact points. Through the coordinates of multiple contact points, the size, shape and relative positions of the part to be measured can be calculated, thereby calculating the concentricity and center distance of the part to be measured.
[0004] However, the price of coordinate measuring machines is relatively expensive, which increases the cost of inspection. Utility Model Content
[0005] The embodiment of the present disclosure provides a hole detection device, which can detect the concentricity and center distance of holes in a part to be detected, and can reduce the detection cost. The technical solution is as follows:
[0006] The embodiment of the present disclosure provides a hole detection device, including a detection shaft, a detection frame, a through gauge assembly and a stop gauge assembly. The detection shaft includes a first shaft segment, a second shaft segment and a third shaft segment coaxially connected in sequence, and the outer diameters of the first shaft segment, the second shaft segment and the third shaft segment increase in sequence. The detection frame includes a detection hole, a positioning structure and a frame body, the frame body includes a first surface and a second surface, the detection hole passes through the first surface and the second surface opposite to the frame body, the positioning structure is located on the first surface of the frame body, the positioning structure and the detection hole are spaced apart, and the detection hole and the third shaft segment are clearance-matched. The through gauge assembly includes a through gauge positioning shaft and a through gauge cylinder, the through gauge cylinder is coaxially connected to the through gauge positioning shaft, and the outer diameter of the through gauge cylinder is greater than the outer diameter of the through gauge positioning shaft. The stop gauge assembly includes a stop gauge positioning shaft and a stop gauge cylinder, the stop gauge cylinder is coaxially connected to the stop gauge positioning shaft, the outer diameter of the stop gauge cylinder is greater than the outer diameter of the stop gauge positioning shaft, and the outer diameter of the stop gauge cylinder is greater than the outer diameter of the through gauge cylinder.
[0007] In an implementation of the present disclosure, the positioning structure includes a pin hole, and the axial direction of the pin hole is consistent with the axial direction of the detection hole.
[0008] In another implementation of the present disclosure, the positioning structure includes an arc-shaped hole, and the hole depth direction of the arc-shaped hole is consistent with the axial direction of the detection hole.
[0009] In yet another implementation of the present disclosure, there are at least two arc-shaped holes, inner arc surfaces of at least two of the arc-shaped holes face the detection hole, and the arc-shaped holes are axially symmetrical with each other along the central axis of the detection hole.
[0010] In another implementation of the present disclosure, the positioning structure further comprises a receiving hole and a receiving groove, wherein the axial direction of the receiving hole is consistent with the axial direction of the detection hole, and the receiving groove is respectively connected to each of the arc-shaped holes.
[0011] In yet another implementation of the present disclosure, the frame has a third surface and a convex strip, the third surface is located between the first surface and the second surface, the convex strip is located on the third surface, and the convex strip extends along the axial direction of the detection hole.
[0012] In yet another implementation of the present disclosure, there are at least two convex strips, and at least two of the convex strips are spaced apart.
[0013] In another implementation of the present disclosure, the detection shaft further includes a gripping rod, which is coaxially connected to an end of the third shaft segment away from the second shaft segment, and the outer diameter of the gripping rod is smaller than the outer diameter of the third shaft segment.
[0014] In another implementation of the present disclosure, the go gauge assembly further includes a go gauge grip rod and a go gauge air guide groove. The go gauge grip rod is coaxially connected to one end of the go gauge cylinder away from the go gauge positioning axis, and the outer diameter of the go gauge grip rod is smaller than the outer diameter of the go gauge cylinder. The go gauge air guide groove is located on the outer peripheral wall of the go gauge positioning axis, and the two ends of the go gauge air guide groove are flush with the two ends of the go gauge positioning axis.
[0015] In another implementation of the present disclosure, the stop gauge assembly further includes a stop gauge gripping rod and a stop gauge air guide groove. The stop gauge gripping rod is coaxially connected to one end of the stop gauge cylinder away from the stop gauge positioning axis, and the outer diameter of the stop gauge gripping rod is smaller than the outer diameter of the stop gauge cylinder. The stop gauge air guide groove is located on the outer peripheral wall of the stop gauge positioning axis, and the two ends of the stop gauge air guide groove are flush with the two ends of the stop gauge cylinder.
[0016] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:
[0017] The part to be tested has a first hole, a second hole and a third hole. In the design standard, it is necessary to detect the concentricity between the first hole and the second hole, and the center distance between the first hole and the third hole.
[0018] When detecting the concentricity between the first hole and the second hole, since the detection frame includes a positioning structure, the frame can be positioned and assembled on the part to be tested through the positioning structure, and the detection hole corresponds to the first hole and the second hole. Determine whether the detection shaft can be inserted into the second hole and the first hole in sequence through the detection hole. If so, it indicates that the third shaft section is inserted into the detection hole, the second shaft section is inserted into the second hole, and the first shaft section is inserted into the first hole. Since the first shaft section, the second shaft section, and the third shaft section are coaxial, the first hole, the second hole, and the detection hole are coaxial, that is, the concentricity between the first hole and the second hole meets the standard. If not, it indicates that the first hole, the second hole, and the detection hole are not coaxial, that is, the concentricity between the first hole and the second hole does not meet the standard.
[0019] When detecting the center distance between the first hole and the third hole, since the through gauge assembly includes a through gauge positioning shaft and a through gauge cylinder connected coaxially, the through gauge assembly can be assembled on the part to be tested by fixing the through gauge positioning shaft to the third hole, and the outer diameter length of the through gauge cylinder is the actual detected hole center distance. Determine whether the detection shaft can be inserted into the second hole and the first hole in sequence through the detection hole. If so, it indicates that the center distance between the axis of the third hole and the common axis of the first hole and the second hole is greater than the lower limit standard. Since the stop gauge assembly includes a stop gauge positioning shaft and a stop gauge cylinder connected coaxially, the stop gauge assembly can be assembled on the part to be tested by fixing the stop gauge positioning shaft to the third hole. At this time, the outer diameter length of the stop gauge cylinder plus the outer diameter length of the third shaft section is the actual detected hole center distance. Determine whether the detection shaft can be inserted into the second hole and the first hole in sequence through the detection hole. If not, it indicates that the center distance between the axis of the third hole and the common axis of the first hole and the second hole is less than the upper limit standard. If the center distance test result satisfies both the lower limit standard and the upper limit standard, the center distance test of the axis of the third hole from the common axis of the first hole and the second hole is qualified.
[0020] In other words, the hole detection device can manually complete the concentricity and center distance acceptance inspection of the holes in the parts to be tested by relying on only four simple tools including the detection shaft, the detection frame, the go gauge assembly and the stop gauge assembly, effectively reducing the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1is a structural schematic diagram of a detection axis provided by an embodiment of the present disclosure;
[0023] Figure 2 is a schematic diagram of the structure of a detection frame provided by an embodiment of the present disclosure;
[0024] Figure 3 is a schematic diagram of the structure of a detection frame provided by an embodiment of the present disclosure;
[0025] Figure 4 is a structural schematic diagram of a through gauge assembly provided by an embodiment of the present disclosure;
[0026] Figure 5 is a structural schematic diagram of a stop gauge assembly provided by an embodiment of the present disclosure;
[0027] Figure 6 is a schematic diagram of the structure of a part to be tested provided by an embodiment of the present disclosure;
[0028] Figure 7 is a structural schematic diagram of another through gauge assembly provided by an embodiment of the present disclosure;
[0029] Figure 8 It is a structural schematic diagram of another stop gauge assembly provided in an embodiment of the present disclosure.
[0030] The symbols in the figure mean the following:
[0031] 10. Detection axis;
[0032] 101, first shaft section; 102, second shaft section; 103, third shaft section; 104, handle;
[0033] 20. Detection frame;
[0034] 201, detection hole; 202, positioning structure; 2021, latch hole; 2022, arc hole; 2023, receiving hole; 2024, receiving groove; 203, frame; 2031, first surface; 2032, second surface; 2033, third surface; 2034, convex strip;
[0035] 30. Through gauge assembly;
[0036] 301, through gauge positioning axis; 302, through gauge cylinder; 303, through gauge grip rod; 304, through gauge air guide groove;
[0037] 40. Stop gauge assembly;
[0038] 401, stop gauge positioning shaft; 402, stop gauge cylinder; 403, stop gauge grip rod; 404, stop gauge air guide groove.
[0039] 50. Parts to be tested;
[0040] 501, first hole; 502, second hole; 503, third hole; 504, positioning hole; 505, arc strip; 506, first protrusion; 507, second protrusion; 508, third protrusion. DETAILED DESCRIPTION
[0041] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0042] An embodiment of the present disclosure provides a hole detection device. Figure 1 is a schematic diagram of the structure of a detection axis 10 provided in an embodiment of the present disclosure, Figure 2 is a schematic diagram of the structure of a detection frame 20 provided in an embodiment of the present disclosure, Figure 3 is a schematic diagram of the structure of a detection frame 20 provided in an embodiment of the present disclosure, Figure 2 and Figure 3 The opposite perspective, Figure 4 is a schematic structural diagram of a through gauge assembly 30 provided in an embodiment of the present disclosure, Figure 5 is a schematic diagram of the structure of a stop gauge assembly 40 provided in an embodiment of the present disclosure, combined with Figure 1 to Figure 5 In this embodiment, the hole detection device includes a detection shaft 10, a detection frame 20, a through gauge assembly 30 and a stop gauge assembly 40. The detection shaft 10 includes a first shaft section 101, a second shaft section 102 and a third shaft section 103 which are coaxially connected in sequence, and the outer diameters of the first shaft section 101, the second shaft section 102 and the third shaft section 103 increase in sequence. The detection frame 20 includes a detection hole 201, a positioning structure 202 and a frame body 203, and the frame body 203 includes a first surface 2031 and a second surface 2032, the detection hole 201 passes through the first surface 2031 and the second surface 2032 opposite to the frame body 203, the positioning structure 202 is located on the first surface 2031 of the frame body 203, the positioning structure 202 and the detection hole 201 are spaced apart, and the detection hole 201 and the third shaft section 103 are clearance-matched. The through gauge assembly 30 includes a through gauge positioning shaft 301 and a through gauge cylinder 302, the through gauge cylinder 302 is coaxially connected to the through gauge positioning shaft 301, and the outer diameter of the through gauge cylinder 302 is larger than the outer diameter of the through gauge positioning shaft 301. The stop gauge assembly 40 includes a stop gauge positioning shaft 401 and a stop gauge cylinder 402, the stop gauge cylinder 402 is coaxially connected to the stop gauge positioning shaft 401, the outer diameter of the stop gauge cylinder 402 is larger than the outer diameter of the stop gauge positioning shaft 401, and the outer diameter of the stop gauge cylinder 402 is larger than the outer diameter of the through gauge cylinder 302.
[0043] Figure 6 is a schematic diagram of the structure of the part 50 to be tested provided in the embodiment of the present disclosure, with reference to Figure 6The part 50 to be tested has a first hole 501 , a second hole 502 and a third hole 503 . In the design standard, it is necessary to detect the concentricity between the first hole 501 and the second hole 502 , and the center distance between the first hole 501 and the third hole 503 .
[0044] When detecting the concentricity between the first hole 501 and the second hole 502, since the detection frame 20 includes the positioning structure 202, the frame body 203 can be positioned and assembled on the part to be detected 50 through the positioning structure 202, and the detection hole 201 corresponds to the first hole 501 and the second hole 502. It is judged whether the detection shaft 10 can be inserted into the second hole 502 and the first hole 501 in sequence through the detection hole 201. If so, it indicates that the third shaft section 103 is inserted into the detection hole 201, the second shaft section 102 is inserted into the second hole 502, and the first shaft section 101 is inserted into the first hole 501. Since the first shaft section 101, the second shaft section 102, and the third shaft section 103 are coaxial, the first hole 501, the second hole 502, and the detection hole 201 are coaxial, that is, the concentricity between the first hole 501 and the second hole 502 meets the standard. If not, it indicates that the first hole 501, the second hole 502, and the detection hole 201 are not coaxial, that is, the concentricity between the first hole 501 and the second hole 502 does not meet the standard.
[0045] When detecting the center distance between the first hole 501 and the third hole 503, since the through gauge assembly 30 includes a through gauge positioning shaft 301 and a through gauge cylinder 302 coaxially connected, the through gauge assembly 30 can be assembled on the part to be tested 50 by fixing the through gauge positioning shaft 301 to the third hole 503. At this time, the outer diameter length of the through gauge cylinder 302 is the actual detected hole center distance. It is determined whether the detection shaft 10 can be inserted into the second hole 502 and the first hole 501 in sequence through the detection hole 201. If yes, it indicates that the center distance between the axis of the third hole 503 and the common axis of the first hole 501 and the second hole 502 is greater than the lower limit standard. Since the stop gauge assembly 40 includes a stop gauge positioning shaft 401 and a stop gauge cylinder 402 that are coaxially connected, the stop gauge assembly 40 can be assembled on the part to be tested 50 by fixing the stop gauge positioning shaft 401 to the third hole 503. At this time, the outer diameter length of the stop gauge cylinder 402 plus the outer diameter length of the third shaft section 103 is the actual detected hole center distance. Determine whether the detection shaft 10 can be inserted into the second hole 502 and the first hole 501 in sequence through the detection hole 201. If not, it indicates that the center distance between the axis of the third hole 503 and the common axis of the first hole 501 and the second hole 502 is less than the upper limit standard. If the center distance result of the detection satisfies both the lower limit standard and the upper limit standard, the detection of the center distance between the axis of the third hole 503 and the common axis of the first hole 501 and the second hole 502 is qualified.
[0046] That is to say, the hole detection device can manually complete the concentricity and center distance acceptance inspection of the hole in the tested part 50 by relying on only four simple tools including the detection shaft 10, the detection frame 20, the go gauge assembly 30 and the stop gauge assembly 40, thereby effectively reducing the detection cost.
[0047] See also Figure 2 and Figure 6 In this embodiment, the positioning structure 202 includes a pin hole 2021 , and the axial direction of the pin hole 2021 is consistent with the axial direction of the detection hole 201 .
[0048] It is worth mentioning that when the frame of the positioning structure 202 is tightly fitted on the part to be tested 50, the multiple pin holes 2021 can be opposite to the multiple positioning holes 504 on the part to be tested 50 one by one. The pin holes 2021 are through holes, and the positioning holes 504 are threaded holes. Therefore, the positioning structure 202 can be tightly and accurately fitted on the part to be tested 50 by screw connection, which is beneficial to improve the accuracy of detection when detecting the concentricity between the first hole 501 and the second hole 502 on the part to be tested 50.
[0049] Optionally, the pin can be directly welded to the pin hole 2021 of the positioning structure 202, and then when the positioning structure 202 is fitted with the part to be tested 50, the welded pin can be directly aligned with the positioning hole 504 on the part to be tested 50 and inserted to complete the fitting of the positioning structure 202 and the part to be tested 50.
[0050] In this embodiment, the positioning structure 202 includes an arc-shaped hole 2022 , and the depth direction of the arc-shaped hole 2022 is consistent with the axial direction of the detection hole 201 .
[0051] It is worth explaining that the hole depth refers to the distance from the surface of the part to the bottom of the hole when drilled vertically.
[0052] For example, see Figure 2 and Figure 6 Since there is a raised arc strip 505 at the place where the part to be tested 50 and the positioning structure 202 are placed and fitted, the arc hole 2022 is designed and is consistent with the axial direction of the detection hole 201, so that the part to be tested 50 and the positioning structure 202 will not be affected by the arc strip 505 on the part to be tested 50 when they are placed in fit.
[0053] Optionally, the portion of the arc hole 2022 that fits the arc strip 505 on the part to be tested 50 can also be processed into a non-penetrating groove, so that the amount of cutting during processing is reduced, the processing and manufacturing cost of the hole detection device is reduced, and the manufacturing efficiency is improved.
[0054] In this embodiment, see Figure 2There are at least two arc-shaped holes 2022 , and the inner arc surfaces of at least two arc-shaped holes 2022 face the detection hole 201 . The arc-shaped holes 2022 are axially symmetrical with each other along the central axis of the detection hole 201 .
[0055] Exemplarily, there are two arc-shaped bars 505 on the part to be measured 50, and the inner arc surfaces of the two arc-shaped bars 505 face the second hole 502 and are axially symmetrical with each other. The arc-shaped hole 2022 on the positioning structure 202 is gap-matched with the arc-shaped bar 505 on the part to be measured 50, so the arc-shaped hole 2022 can not only not affect the fitting placement of the part to be measured 50 and the positioning structure 202, but also realize the size detection of the arc-shaped bar 505 on the part to be measured 50.
[0056] Optionally, the inner wall of the arc hole 2022 can be processed into an arc surface with a roughness lower than 0.4 mm, so that when the arc bar 505 on the part 50 to be tested is inserted into the arc hole 2022, it can fit more closely, making it more accurate to detect the size of the arc bar 505.
[0057] In this embodiment, see Figure 2 The positioning structure 202 further has a receiving hole 2023 and a receiving groove 2024. The axial direction of the receiving hole 2023 is consistent with the axial direction of the detection hole 201, and the receiving groove 2024 is connected to each arc hole 2022 respectively.
[0058] Exemplarily, one end of the receiving groove 2024 contacts and communicates with one end of one arc-shaped hole 2022 , and the other end of the receiving groove 2024 contacts and communicates with one end of another arc-shaped hole 2022 .
[0059] It is worth noting that see Figure 2 and Figure 6 At the joint between the part to be tested 50 and the positioning structure 202, there are a first bump 506 and a second bump 507 on the part to be tested 50. Exemplarily, when the part to be tested 50 and the positioning structure 202 are joined, the receiving hole 2023 can accommodate the first bump 506, and the receiving groove 2024 can accommodate the second bump 507, so that the joint placement of the part to be tested 50 and the positioning structure 202 is not affected.
[0060] Optionally, the receiving hole 2023 can be processed into a hole that is the same as the pin hole 2021 while ensuring that the first protrusion 506 can be accommodated. In this way, the receiving hole 2023 can be processed together with the pin hole 2021, which can simplify the processing process and save costs.
[0061] Optionally, the receiving groove 2024 connects the two arc-shaped holes 2022 , so that the receiving groove 2024 can be processed simultaneously when the arc-shaped holes 2022 are processed, thereby simplifying the processing flow and improving manufacturing efficiency.
[0062] In this embodiment, see Figure 2 and Figure 3 The frame 203 has a third surface 2033 and a convex strip 2034 . The third surface 2033 is located between the first surface 2031 and the second surface 2032 . The convex strip 2034 is located on the third surface 2033 . The convex strip 2034 extends along the axial direction of the detection hole 201 .
[0063] It is worth mentioning that see Figure 2 and Figure 6 , there is a third protrusion 508 at the joint of the part to be tested 50 and the positioning structure 202, and the protrusion direction of the third protrusion 508 is consistent with the axial direction of the detection hole 201. Exemplarily, when the part to be tested 50 is in contact with the positioning structure 202, since the axial direction of the accommodating hole 2023 is also consistent with the axial direction of the detection hole 201, when the convex strip 2034 is in contact with the third protrusion 508, the displacement of the positioning structure 202 in the horizontal direction relative to the part to be tested 50 can be limited to one direction, which helps the part to be tested 50 and the positioning structure 202 to fit more closely.
[0064] In this embodiment, see Figure 2 and Figure 6 There are at least two convex strips 2034 , and at least two convex strips 2034 are spaced apart from each other.
[0065] For example, when the convex strip 2034 fits with the third protrusion 508 on the part to be measured, since the third protrusion 508 is located in the gap between the two convex strips 2034, the fit between the positioning structure 202 and the part to be measured 50 becomes tighter, and the forward and backward displacement direction of the positioning structure 202 relative to the part to be measured 50 in the horizontal direction is limited.
[0066] In this embodiment, see Figure 1 The detection shaft 10 further includes a gripping rod 104 . The gripping rod 104 is coaxially connected to an end of the third shaft segment 103 away from the second shaft segment 102 , and the outer diameter of the gripping rod 104 is smaller than the outer diameter of the third shaft segment 103 .
[0067] It is worth noting that the surface of the grip 104 is a knurled surface, which can reduce the occurrence of hand slip when the worker holds the grip 104. The surface roughness of the first shaft section 101, the second shaft section 102 and the third shaft section 103 on the detection shaft 10 is less than 0.4 mm, which is conducive to the detection shaft 10 being accurately inserted into the detection hole 201, the second hole 502 and the third hole 503 in sequence, preventing the measurement of the hole concentricity from being affected by the excessively rough surface of the detection shaft 10, thereby improving the accuracy of the detection.
[0068] Exemplarily, the gripping rod 104 is coaxially connected to the third shaft segment 103, and its outer diameter is also smaller than the outer diameter of the third shaft segment 103, so the gripping rod 104 can be used to insert the detection rod into the detection frame 20 and the part to be tested 50 without interference, so as to perform concentricity detection of the hole of the part to be tested 50.
[0069] Optionally, the handle 104 may also be made of rubber material, so as to reduce the manufacturing cost of the hole detection device while ensuring the anti-slip function.
[0070] In this embodiment, see Figure 4 The go gauge assembly 30 further includes a go gauge gripping rod 303 and a go gauge air guide groove 304. The go gauge gripping rod 303 is coaxially connected to one end of the go gauge cylinder 302 away from the go gauge positioning axis 301, and the outer diameter of the go gauge gripping rod 303 is smaller than the outer diameter of the go gauge cylinder 302. The go gauge air guide groove 304 is located on the outer circumference of the go gauge positioning axis 301, and the two ends of the go gauge air guide groove 304 are flush with the two ends of the go gauge positioning axis 301.
[0071] It is worth noting that the surface roughness of the through gauge locating shaft 301 and the through gauge cylinder 302 is less than 0.4 mm, which is conducive to the accurate insertion of the through gauge locating shaft 301 into the hole to be inspected, preventing the measurement of the hole center distance from being affected by the excessively rough surface of the through gauge cylinder 302, thereby improving the accuracy of the inspection.
[0072] Exemplarily, because the two ends of the through gauge air guide groove 304 are flush with the two ends of the through gauge positioning shaft 301, when the through gauge positioning shaft 301 is fully inserted into the third hole 503 to be tested, the gas in the hole can be discharged through the through gauge air guide groove 304, so that the through gauge positioning shaft 301 can be smoothly and tightly inserted into the third hole 503. Because the grip rod 104 is coaxially connected to the through gauge cylinder 302, and its outer diameter is also smaller than the outer diameter of the through gauge cylinder 302, the grip rod 104 can be used to more easily fully insert the through gauge positioning shaft 301 into the third hole 503 to be tested for testing.
[0073] Optionally, the handle 104 may also be made of rubber material, so as to reduce the manufacturing cost of the hole detection device while ensuring the anti-slip function.
[0074] Figure 7 is a schematic diagram of the structure of another through gauge assembly 30 provided in an embodiment of the present disclosure, such as Figure 7 As shown, optionally, the through gauge air guide groove 304 can be set on the central axis of the through gauge assembly 30 in a through-type manner, with one end of the through gauge air guide groove 304 opening at one end of the through gauge positioning axis 301 away from the through gauge cylinder 302, and the other end of the through gauge air guide groove 304 opening at one end of the through gauge grip rod 303 away from the through gauge cylinder 302.
[0075] In this embodiment, see Figure 5The stop gauge assembly 40 further includes a stop gauge gripping rod 403 and a stop gauge air guide groove 404. The stop gauge gripping rod 403 is coaxially connected to one end of the stop gauge cylinder 402 away from the stop gauge positioning shaft 401, and the outer diameter of the stop gauge gripping rod 403 is smaller than the outer diameter of the stop gauge cylinder 402. The stop gauge air guide groove 404 is located on the outer circumferential surface of the stop gauge positioning shaft 401, and the two ends of the stop gauge air guide groove 404 are flush with the two ends of the stop gauge cylinder 402.
[0076] It is worth noting that the surface roughness of the stop gauge locating shaft 401 and the stop gauge cylinder 402 is less than 0.4 mm, which is conducive to the accurate insertion of the stop gauge locating shaft 401 into the hole to be inspected, preventing the measurement of the hole center distance from being affected by the excessively rough surface of the stop gauge cylinder 402, thereby improving the accuracy of the inspection.
[0077] For example, because the two ends of the stop gauge air guide groove 404 are flush with the two ends of the stop gauge positioning shaft 401, when the stop gauge positioning shaft 401 is fully inserted into the third hole 503 to be tested, the gas in the hole can be discharged through the stop gauge air guide groove 404, so that the stop gauge positioning shaft 401 can be smoothly and tightly inserted into the third hole 503. Because the grip rod 104 is coaxially connected to the stop gauge cylinder 402, and its outer diameter is also smaller than the outer diameter of the stop gauge cylinder 402, the grip rod 104 can be used to more easily fully insert the stop gauge positioning shaft 401 into the third hole 503 to be tested for testing.
[0078] Optionally, the handle 104 may also be made of rubber material, so as to reduce the manufacturing cost of the hole detection device while ensuring the anti-slip function.
[0079] Figure 8 is a schematic diagram of the structure of another stop gauge assembly 40 provided in an embodiment of the present disclosure, such as Figure 8 As shown, optionally, the stop gauge air guide groove 404 can be set in a through-type manner on the central axis of the stop gauge assembly 40, with one end of the stop gauge air guide groove 404 opening at one end of the stop gauge positioning axis 401 away from the stop gauge column 402, and the other end of the stop gauge air guide groove 404 opening at one end of the stop gauge grip rod 403 away from the stop gauge column 402.
[0080] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.
Claims
1. A hole detection device, characterized in that: It comprises a detection shaft (10), a detection frame (20), a go gauge assembly (30) and a stop gauge assembly (40); The detection shaft (10) comprises a first shaft section (101), a second shaft section (102) and a third shaft section (103) which are coaxially connected in sequence, and the outer diameters of the first shaft section (101), the second shaft section (102) and the third shaft section (103) increase in sequence; The detection frame (20) comprises a detection hole (201), a positioning structure (202) and a frame body (203); the frame body (203) comprises a first surface (2031) and a second surface (2032) which are opposite to each other; the detection hole (201) passes through the first surface (2031) and the second surface (2032); the positioning structure (202) is located on the first surface (2031); the positioning structure (202) and the detection hole (201) are spaced apart; and the detection hole (201) and the third shaft segment (103) are clearance-matched; The through gauge assembly (30) comprises a through gauge positioning shaft (301) and a through gauge cylinder (302), wherein the through gauge cylinder (302) is coaxially connected to the through gauge positioning shaft (301), and the outer diameter of the through gauge cylinder (302) is greater than the outer diameter of the through gauge positioning shaft (301); The stop gauge assembly (40) comprises a stop gauge positioning shaft (401) and a stop gauge cylinder (402), wherein the stop gauge cylinder (402) is coaxially connected to the stop gauge positioning shaft (401), the outer diameter of the stop gauge cylinder (402) is greater than the outer diameter of the stop gauge positioning shaft (401), and the outer diameter of the stop gauge cylinder (402) is greater than the outer diameter of the through gauge cylinder (302).
2. The hole detection device according to claim 1, characterized in that: The positioning structure (202) comprises a pin hole (2021), and the axial direction of the pin hole (2021) is consistent with the axial direction of the detection hole (201).
3. The hole detection device according to claim 1, characterized in that: The positioning structure (202) comprises an arc-shaped hole (2022), and the hole depth direction of the arc-shaped hole (2022) is consistent with the axial direction of the detection hole (201).
4. The hole detection device according to claim 3, characterized in that: There are at least two arc-shaped holes (2022), the inner arc surfaces of at least two of the arc-shaped holes (2022) face the detection hole (201), and the arc-shaped holes (2022) are axially symmetrical with each other along the central axis of the detection hole (201).
5. The hole detection device according to claim 4, characterized in that: The positioning structure (202) further comprises a receiving hole (2023) and a receiving groove (2024); The axial direction of the containing hole (2023) is consistent with the axial direction of the detection hole (201), and the containing groove (2024) is respectively connected to each of the arc-shaped holes (2022).
6. The hole detection device according to claim 1, characterized in that: The frame (203) has a third surface (2033) and a convex strip (2034); The third surface (2033) is located between the first surface (2031) and the second surface (2032), the convex strip (2034) is located on the third surface (2033), and the convex strip (2034) extends along the axial direction of the detection hole (201).
7. The hole detection device according to claim 6, characterized in that: There are at least two convex strips (2034), and at least two of the convex strips (2034) are spaced apart.
8. The hole detection device according to claim 1, characterized in that: The detection shaft (10) also includes a grip rod (104); The gripping rod (104) is coaxially connected to an end of the third shaft segment (103) away from the second shaft segment (102), and the outer diameter of the gripping rod (104) is smaller than the outer diameter of the third shaft segment (103).
9. The hole detection device according to claim 1, characterized in that: The go gauge assembly (30) further comprises a go gauge grip rod (303) and a go gauge air guide groove (304); The through gauge gripping rod (303) is coaxially connected to an end of the through gauge cylinder (302) away from the through gauge positioning axis (301), and the outer diameter of the through gauge gripping rod (303) is smaller than the outer diameter of the through gauge cylinder (302); The through-gauge air guide groove (304) is located on the outer peripheral wall of the through-gauge positioning axis (301), and two ends of the through-gauge air guide groove (304) are flush with two ends of the through-gauge positioning axis (301).
10. The hole detection device according to claim 1, characterized in that: The stop gauge assembly (40) further comprises a stop gauge gripping rod (403) and a stop gauge air guide groove (404); The stop gauge gripping rod (403) is coaxially connected to an end of the stop gauge cylinder (402) away from the stop gauge positioning axis (401), and the outer diameter of the stop gauge gripping rod (403) is smaller than the outer diameter of the stop gauge cylinder (402); The stop gauge air guide groove (404) is located on the outer peripheral wall of the stop gauge positioning shaft (401), and two ends of the stop gauge air guide groove (404) are flush with two ends of the stop gauge column (402).