Depth detection device

Abstract

The utility model discloses a depth detection device which comprises a bearing platform and a measuring mechanism. The bearing platform is used for bearing and positioning the product at the detection position. The measuring mechanism comprises a shell, a sliding rod and a measuring instrument, the shell is arranged on the bearing platform, the sliding rod penetrates through the shell and is movably and rotatably connected with the shell, the measuring instrument abuts against the sliding rod, the sliding rod comprises a rod body and a check block, the check block is arranged at the end, facing the detection position, of the rod body, and the measuring instrument is used for abutting against the rod body so that the sliding rod can move relative to the shell. The check block penetrates through the hole of the product and is clamped on the product when the sliding rod rotates relative to the shell, so that the measuring instrument can measure the depth of the hole. The working end of the measuring instrument abuts against the connecting rod, so that the check block can enter the hole and the groove of the product, when the check block enters the hole, the measuring instrument starts measuring, after the check block penetrates through the hole, the check block can be clamped to the product when the sliding rod rotates around the axial direction, the numerical value measured by the measuring instrument is fixed, and it can be judged that the hole of the product is qualified according to the numerical value displayed by the measuring instrument.

Description

Technical Field

[0001] This application belongs to the field of detection equipment technology, and specifically relates to a depth detection device. Background Technology

[0002] Electronic products have input / output ports (also known as I / O holes), and each I / O hole has a T-slot connected to it. The depth of both the I / O hole and the T-slot is an important parameter; if either the I / O hole or the T-slot is not deep enough, the product will be deemed unqualified. However, existing testing devices cannot inspect the holes and slots of the product. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a depth detection device that can detect the hole depth of a product.

[0004] This application provides a depth detection device for detecting products with holes. The depth detection device includes a support platform and a measuring mechanism. The support platform supports and positions the product at the detection position. The measuring mechanism includes a housing, a sliding rod, and a measuring instrument. The housing is disposed on the support platform, and the sliding rod passes through the housing and is movably and rotatably connected to the housing. The measuring instrument pushes against the sliding rod. The sliding rod includes a rod body and a stop. The stop is disposed at the end of the rod body facing the detection position. The measuring instrument pushes against the rod body to move the sliding rod relative to the housing and to allow the stop to pass through the hole in the product. The stop also engages with the product when the sliding rod rotates relative to the housing, allowing the measuring instrument to measure the depth of the hole to detect the product.

[0005] In the aforementioned depth detection device, the measuring mechanism connects the sliding rod and the measuring instrument through the housing. The working end of the measuring instrument pushes against the rod body, allowing the stop block to enter the hole of the product. When the stop block enters the hole, the measuring instrument begins to measure. After the stop block passes through the hole, it can be locked onto the product when the sliding rod rotates. The value measured by the measuring instrument is fixed, and the hole of the product can be judged to be qualified by the value displayed by the measuring instrument.

[0006] In some embodiments, the rod body is connected to a rotating member, which passes through the housing and can rotate relative to the housing to drive the rod body and the stop to rotate.

[0007] In some embodiments, the housing is slidably connected to the support platform; the depth detection device further includes a positioning mechanism, which includes a cam and a handle connected to the cam. The cam is located on the side of the support platform opposite to the detection position and is used to abut against the housing. The cam is used to rotate relative to the support platform under the drive of the handle, so that the housing moves relative to the support platform, thereby moving the housing closer to or away from the detection position.

[0008] In some embodiments, a slide groove is provided on the support platform, the housing is slidably connected to the slide groove, and a push elastic member is provided in the slide groove. The push elastic member is connected to the housing and the support platform respectively. The push elastic member elastically resets to make the housing move toward the detection displacement to the abutting cam.

[0009] In some embodiments, the positioning mechanism further includes a first positioning pin and a second positioning pin, which are spaced apart on the support platform and are both used to abut the handle to position the housing in two positions.

[0010] In some embodiments, the housing is connected to an extension block, and a slide groove passes through the support platform. The housing passes through the slide groove so that the extension block is located on the side of the support platform opposite to the detection position. A positioning mechanism is connected to the side of the support platform opposite to the detection position so that the housing moves along the slide groove with the extension block when the cam pushes against the extension block.

[0011] In some embodiments, the product has a groove on one side of the hole to be tested, the size of the groove being larger than the size of the hole, so that the groove and the hole are connected to form a stop surface; a snap-fit ​​elastic element is sleeved on the rod body, the snap-fit ​​elastic element is connected to the housing and the rod body respectively, and the snap-fit ​​elastic element elastically resets to make the sliding rod move away from the detection position, so that the stop block abuts against the stop surface.

[0012] In some embodiments, the depth detection device further includes an ejection mechanism, which includes a pusher block that extends through the support platform and is movable relative to the support platform in a vertical direction to eject the product at the detection position.

[0013] In some embodiments, the ejection mechanism further includes a connecting rod, a mounting plate, and a wrench. The connecting rod is fixedly disposed on the side of the bearing platform away from the detection position. The mounting plate is disposed on the side of the bearing platform away from the detection position and can move along the connecting rod toward the bearing platform. The mounting plate is used to fix the push block, and the wrench is rotatably connected to the end of the push block away from the bearing platform. The wrench can rotate relative to the push block to abut against the mounting plate, so that the mounting plate drives the push block to move along the connecting rod toward the bearing platform, thereby pushing the push block out of the product.

[0014] In some embodiments, the connecting rod is provided with a stop portion located at the end of the connecting rod away from the bearing platform, and the stop portion is used to stop the mounting plate; the unloading mechanism also includes a buffer elastic element, which is sleeved on the connecting rod and abuts against the bearing platform and the mounting plate respectively, and the buffer elastic element elastically resets to move the mounting plate away from the bearing platform until the mounting plate contacts the stop portion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the depth detection device in one embodiment of this application.

[0016] Figure 2 yes Figure 1 A schematic diagram of the intermediate-depth detection device with some parts omitted.

[0017] Figure 3 yes Figure 2 Enlarged view of section III.

[0018] Figure 4 yes Figure 2 A schematic diagram of the intermediate depth detection device from another perspective.

[0019] Figure 5 yes Figure 2 A schematic diagram of the local structure after sectioning at point IV-IV along the middle.

[0020] Figure 6 yes Figure 1 A schematic diagram of the material return mechanism.

[0021] Figure 7 This is a schematic diagram of the product in one embodiment of this application.

[0022] Explanation of main component symbols

[0023] 100. Depth detection device; 10. Bearing platform; 101. Detection position; 11. Slide groove; 111. Pushing elastic element; 112. Support rod; 12. Positioning pin; 20. Measuring mechanism; 21. Housing; 211. Extension block; 22. Sliding rod; 221. Rod body; 2211. Snap-fit ​​elastic element; 222. Stop block; 23. Rotating part; 24. Measuring instrument; 30. Positioning mechanism; 31. Cam; 32. Handle; 33. First positioning pin; 34. Second positioning pin; 40. Unloading mechanism; 41. Push block; 42. Connecting rod; 421. Stop part; 43. Mounting plate; 44. Wrench; 45. Buffer elastic element; 200. Product; 2001. Hole; 2002. Groove; 2003. Stop surface; 300. Standard part; X, Axial direction; Z, Vertical direction.

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] In the description of the embodiments of this application, the term "perpendicular" is used to describe the ideal state between two components. In actual production or use, two components may exist in a state that is approximately perpendicular. For example, the two components described as "perpendicular" may not be absolutely straight lines or planes, but may be approximately straight lines or planes. From a macroscopic perspective, if the overall extension direction is a straight line or plane, the component can be considered as a "straight line" or "plane".

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Where there is no conflict, the various embodiments in this application can be combined with each other.

[0030] It should be noted that the thickness, length, width and other dimensions of various components in the embodiments of this application shown in the accompanying drawings are merely illustrative and should not constitute any limitation on this application.

[0031] Electronic products have input / output ports (also known as I / O holes), and each I / O hole has a T-slot connected to it. The depth of both the I / O hole and the T-slot is an important parameter; if either the I / O hole or the T-slot is not deep enough, the product will be deemed unqualified. However, existing testing devices cannot inspect the holes and slots of the product.

[0032] This application provides a depth detection device for detecting products with holes. The depth detection device includes a support platform and a measuring mechanism. The support platform supports and positions the product at the detection position. The measuring mechanism includes a housing, a sliding rod, and a measuring instrument. The housing is disposed on the support platform, and the sliding rod passes through the housing and is movably and rotatably connected to the housing. The measuring instrument pushes against the sliding rod. The sliding rod includes a rod body and a stop. The stop is disposed at the end of the rod body facing the detection position. The measuring instrument pushes against the rod body to move the sliding rod relative to the housing and to allow the stop to pass through the hole in the product. The stop also engages with the product when the sliding rod rotates relative to the housing, allowing the measuring instrument to measure the depth of the hole to detect the product.

[0033] In the aforementioned depth detection device, the measuring mechanism connects the sliding rod and the measuring instrument through the housing. The working end of the measuring instrument pushes against the rod body, allowing the stop block to enter the hole of the product. When the stop block enters the hole, the measuring instrument begins to measure. After the stop block passes through the hole, it can be locked onto the product when the sliding rod rotates. The value measured by the measuring instrument is fixed, and the hole of the product can be judged to be qualified by the value displayed by the measuring instrument.

[0034] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0035] Please see Figure 1 and Figure 7 An embodiment of this application provides a depth detection device 100 for detecting whether the depth of the hole 2001 in the product 200 is qualified.

[0036] Please see Figure 7 In some embodiments, product 200 is a mobile phone case. Product 200 has a hole 2001 and a groove 2002. The hole 2001 and the groove 2002 are connected, and the groove 2002 is located at one end of the hole 2001. The size of the groove 2002 is larger than the size of the hole 2001, so that the groove 2002 communicates with the hole 2001 to form a stop surface 2003. The depth detection device 100 enters the hole 2001 and the groove 2002 in sequence to detect the depth of the hole 2001, and determines whether the setting position of the groove 2002 is qualified based on the depth of the hole 2001. The position of the groove 2002 is qualified only when the depth of the hole 2001 is the preset depth. When the depth of the hole 2001 is less than or greater than the preset depth, the position of the groove 2002 is determined to be unqualified.

[0037] Please see Figure 1 In some embodiments, a standard component 300 is provided to assist in positioning the measuring mechanism 20. The standard component 300 has the same outer contour as the product 200. When the product 200 is inspected, the product 200 is mounted on the support platform 10 at the position where the standard component 300 is installed.

[0038] The depth detection device 100 includes a support platform 10 and a measuring mechanism 20. (See also...) Figure 2 The support platform 10 is used to support and position the product 200 at the detection position 101. The measuring mechanism 20 is used to detect the product 200 at the detection position 101. Figure 1 In the diagram, detection position 101 is the location where standard part 300 is installed.

[0039] Please combine Figure 5 The measuring mechanism 20 includes a housing 21, a sliding rod 22, and a measuring instrument 24 (see reference). Figure 1The housing 21 is located on one side of the detection position 101 on the support platform 10. The sliding rod 22 includes a rod body 221 and a stop 222, with the stop 222 fixedly connected to the end of the rod body 221 facing the detection position 101. The sliding rod 22 passes through the housing 21, allowing it to move relative to the housing 21 along the axial direction X of the rod body 221. The sliding rod 22 can also rotate about the axial direction X. The working end of the measuring instrument 24 can pass through the housing 21 and abut against the rod body 221. Move the working end of the tester toward the detection position 101, and the working end of the tester pushes against the rod body 221 at the detection position 101. At this time, the tester starts measuring. The working end continues to push against the rod body 221 until the stop block 222 passes through the hole 2001 of the product 200. After the stop block 222 passes through the hole 2001, the stop block 222 enters the groove 2002 of the product 200, causing the sliding rod 22 to rotate around the axis X until the stop block 222 is engaged in the groove 2002. The stop block 222 cannot move to the end opposite to the detection position 101, and the value measured by the measuring instrument 24 is fixed. The measuring instrument 24 measures and displays the depth of the hole 2001. Based on the value measured by the measuring instrument 24, it can be determined whether the depth of the hole 2001 is qualified. When the stop block 222 is engaged in the groove 2002, the value measured by the measuring instrument 24 is the preset value, and at this time, the depth of the hole 2001 is determined to be qualified. When the stop 222 is engaged in the slot 2002, if the value measured by the measuring instrument 24 is less than or greater than a preset value, the depth of the hole 2001 is determined to be unqualified. In some embodiments, the measuring instrument 24 is a depth micrometer, used to measure the depth of the stop 222 entering the product 200, i.e., the depth of the hole 2001.

[0040] In some embodiments, the depth of the hole 2001 is the length of the hole 2001 extending along the axial direction X.

[0041] Please see Figure 5 In some embodiments, the rod body 221 is cylindrical to facilitate the rotation of the sliding rod 22 about the axial direction X of the rod body 221. The extending direction of the cylindrical rod body 221 is also referred to as the axial direction X of the rod body 221, hereinafter referred to as axial direction X. Please refer to... Figure 3 The stop block 222 is long and narrow, and its extension direction is perpendicular to the axial direction X, so that the stop block 222 can abut against the stop surface 2003 after rotation. At this time, the stop block 222 is engaged in the groove 2002.

[0042] In some embodiments, the diameter of the end of the rod 221 near the stop 222 is smaller than the diameter of the other end of the rod 221, and the stop 222 and one end of the rod 221 form a T-shaped structure. This allows the rod 221 to partially enter the hole 2001 after the stop 222 enters the groove 2002. Setting the diameter of the end of the rod 221 near the stop 222 to be smaller facilitates the insertion of the stop 222 into the groove 2002. Setting the diameter of the other end of the rod 221 to be larger provides greater strength to the sliding rod 22, making it less prone to breakage.

[0043] In some embodiments, the sliding rod 22 is connected to a rotating member 23. The rotating member 23 passes through the housing 21 and is rotatable relative to the housing 21 about the axial direction X. The rotating member 23 is connected to the rod body 221. The extension direction of the rotating member 23 is perpendicular to the axial direction X. By holding the rotating member 23 and turning it, the rod body 221 and the stop block 222 are driven to rotate about the axial direction X.

[0044] Please see Figure 2 and Figure 5 In some embodiments, the rotating member 23 can rotate relative to the housing 21 within a certain range, so that the rotating member 23 drives the sliding rod 22 to rotate. The rotating member 23 can move relative to the housing 21 along the axial direction X within a certain range, so that the sliding rod 22 can move along the axial direction X. By holding the rotating member 23 and turning it 90°, the stop block 222 can be engaged in the groove 2002 after rotation. Conversely, by turning the rotating member 23 back to its original position, the stop block 222 can move along the axial direction X within the hole 2001 and the groove 2002.

[0045] In some embodiments, the rotating member 23 is rod-shaped for operation.

[0046] Please see Figure 5 In some embodiments, a snap-fit ​​elastic element 2211 is sleeved on the rod body 221. The snap-fit ​​elastic element 2211 abuts between the housing 21 and the rotating member 23. The snap-fit ​​elastic element 2211 elastically resets, causing the sliding rod 22 to move away from the detection position 101, thereby causing the stop block 222 to abut against the stop surface 2003, that is, the stop block 222 is snapped into the groove 2002.

[0047] In some embodiments, the snap-fit ​​elastic element 2211 is a spring.

[0048] In some embodiments, a sleeve is provided inside the housing 21, through which the measuring instrument 24 can be connected to the housing 21, such that the working end of the measuring instrument 24 abuts against the rod body 221. A bolt is threaded onto the housing 21, and the bolt passes through the housing 21 and abuts against the sleeve. By tightening the bolt, the sleeve abuts against the measuring instrument 24, thereby fixing the measuring instrument 24 to the housing 21.

[0049] In some embodiments, the support platform 10 is provided with a slide groove 11, which extends along the axial direction X. The housing 21 is slidably connected to the slide groove 11, so that the housing 21 is slidably connected to the support platform 10 along the axial direction X. Alternatively, the housing 21 can also be slidably connected by a slide rail, which is not limited here.

[0050] Please see Figure 4The depth detection device 100 also includes a positioning mechanism 30. The positioning mechanism 30 includes a cam 31 and a handle 32 connected to the cam 31. The cam 31 is located on the side of the support platform 10 facing away from the detection position 101 and at the end of the housing 21 facing the detection position 101. Driven by the handle 32, the cam 31 can rotate relative to the support platform 10 to push against a portion of the housing 21 located on the bottom side of the support platform 10, so that the housing 21 can move along the slide groove 11 toward the end away from the detection position 101, thereby adjusting the distance between the housing 21 and the detection position 101.

[0051] Please see Figure 5 In some embodiments, a push-off elastic member 111 is provided in the slide groove 11. The push-off elastic member 111 is connected to the housing 21 and the support platform 10 respectively. The push-off elastic member 111 elastically resets, causing the housing 21 to move toward the cam 31, so that the housing 21 can move toward the detection position 101 to abut the cam 31, thereby adjusting the distance between the housing 21 and the detection position 101.

[0052] In some embodiments, a support rod 112 is slidably disposed within the slide groove 11, a guide rod extends along the axial direction X, and the abutting elastic member 111 is a spring, which is sleeved on the support rod 112. The support rod 112 can support the abutting elastic member 111, prevent the abutting elastic member 111 from elastically deforming during elastic expansion and contraction, and enable the housing 21 to move more stably along the slide groove 11.

[0053] Please see Figure 4 In some embodiments, the cam 31 is elliptical. The cam 31 is rotatably connected to the support platform 10 about the center of the ellipse. In addition, the cam 31 may also be other shapes that can push against the housing 21 during rotation, which are not limited here.

[0054] In some embodiments, the positioning mechanism 30 further includes a first positioning pin 33 and a second positioning pin 34. The first positioning pin 33 and the second positioning pin 34 are spaced apart on the support platform 10 and are both used to abut against the limiting handle 32 to position the housing 21 at two different locations.

[0055] In some embodiments, the first positioning pin 33 is used to position the housing 21 at the closest point to the detection position 101. The second positioning pin 34 is used to position the housing 21 at the farthest point from the detection position 101. The first positioning pin 33 and the second positioning pin 34 are spaced apart along the axial direction X. When the handle 32, which abuts against the first positioning pin 33, drives the cam 31 to rotate 90°, the handle 32 abuts against the second positioning pin 34.

[0056] When the distance between the housing 21 and the detection position 101 is at its maximum, it is convenient to install the product 200 on the detection position 101 or remove the product 200 after measurement at the detection position 101. When the distance between the housing 21 and the detection position 101 is at its minimum, the stop 222 is located at the entrance position of the hole 2001 of the product 200, the working end of the measuring instrument 24 contacts the rod body 221, and the measuring instrument 24 is in a zero-state. As the working end of the measuring instrument 24 pushes against the rod body 221 to allow the stop 222 to enter the hole 2001, the measuring instrument 24 begins to measure the distance the stop 222 moves along the axial direction X, i.e., the depth of the hole 2001.

[0057] Please see Figure 1 In some embodiments, when adjusting the measuring mechanism 20 to position it: first, the standard part 300 is installed in the detection position 101. Then, the cam 31 is rotated by the handle 32 to adjust the position of the housing 21. When the stop 222 is located at the entrance position of the hole 2001 of the product 200 and the measuring instrument 24 is in the zero state, the position of the housing 21 is fixed, thereby positioning the measuring mechanism 20. Finally, the standard part 300 is removed, and the product 200 is installed in the detection position 101. At this time, the measuring mechanism 20 can detect the product 200.

[0058] Please see Figure 5 In some embodiments, the slide 11 extends through the support platform 10. An extension block 211 is connected to the housing 21. The housing 21 passes through the slide 11, such that the extension block 211 is located on the side of the support platform 10 facing away from the detection position 101. A positioning mechanism 30 is connected to the side of the support platform 10 facing away from the detection position 101, causing the housing 21 to move along the slide 11 with the extension block 211 when the cam 31 pushes against the extension block 211.

[0059] The side of the support platform 10 facing away from the detection position 101 is the back side of the support platform 10, while the detection position 101 is located on the front side of the support platform 10. A through-groove 11 facilitates the sliding connection of the housing 21 to the groove 11 while simultaneously connecting the extension block 211. The extension block 211, located on the back side of the support platform 10, cooperates with the positioning mechanism 30. Positioning the positioning mechanism 30 on the back side of the support platform 10 fully utilizes the space and prevents the positioning mechanism 30 from interfering with the measurement mechanism 20's inspection of the product 200.

[0060] Please see Figure 2 In some embodiments, the support platform 10 is provided with two locating pins 12 spaced apart along the axial direction X. The two locating pins 12 are located at the detection position 101. The product 200 has two mating holes (not shown). The locating pins 12 can be inserted into the mating holes to position the product 200 at the detection position 101.

[0061] Please see Figure 4 and Figure 6 In some embodiments, the depth detection device 100 further includes an ejection mechanism 40. The ejection mechanism 40 includes a pusher block 41. The pusher block 41 is disposed through the support platform 10. The pusher block 41 can move relative to the support platform 10 in the vertical direction Z, so as to disengage the product 200 from the positioning pin 12, thereby pushing out the product 200 at the detection position 101, and thus facilitating the removal of the product 200 from the detection position 101.

[0062] In the illustrated embodiment, the vertical direction Z is perpendicular to the axial direction X.

[0063] Please see Figure 6 In some embodiments, the ejection mechanism 40 further includes a connecting rod 42, a mounting plate 43, and a wrench 44. The connecting rod 42 is fixedly disposed on the back of the support platform 10. The mounting plate 43 is disposed on the side of the support platform 10 facing away from the detection position 101 and is movable along the connecting rod 42 toward the support platform 10. A push block 41 passes through the support platform 10 and the mounting plate 43 and is fixedly connected to the mounting plate 43. The end of the push block 41 away from the support platform 10 is rotatably connected to the wrench 44. When the wrench 44 rotates relative to the push block 41, the end of the wrench 44 abuts against the mounting plate 43, causing the mounting plate 43 to drive the push block 41 to move along the connecting rod 42 toward the support platform 10. The connecting rod 42 extends vertically in the Z direction, causing the mounting plate 43 to drive the push block 41 to move vertically upward, thereby pushing the push block 41 out of the product 200.

[0064] In some embodiments, the connecting rod 42 is provided with a stop portion 421. The stop portion 421 is located at the end of the connecting rod 42 away from the support platform 10. The stop portion 421 is used to stop the mounting plate 43 to limit the excessive downward movement of the mounting plate 43 away from the connecting rod 42.

[0065] The unloading mechanism 40 also includes a buffer elastic element 45. The buffer elastic element 45 is a spring. The buffer elastic element 45 is sleeved on the connecting rod 42. The buffer elastic element 45 abuts against the bearing platform 10 and the mounting plate 43 respectively. The buffer elastic element 45 elastically resets, causing the mounting plate 43 to move away from the bearing platform 10 until the mounting plate 43 contacts the stop part 421.

[0066] The buffer elastic element 45 provides a downward counterforce when the end of the wrench 44 pushes the mounting plate 43 upward, providing a buffer during the upward movement of the mounting plate 43 and the push block 41, preventing excessive upward impact force from the push block 41 from damaging the product 200. The buffer elastic element 45 can elastically reset when the wrench 44 releases its push on the mounting plate 43, causing the mounting plate 43 to drive the push block 41 back to its downward position, so that the unmeasured workpiece can be installed in the detection position 101.

[0067] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of disclosure of this application.

Claims

1. A depth detection device for detecting products with holes, characterized in that, include: The support platform is used to support and position the product at the detection position; A measuring mechanism includes a housing, a sliding rod, and a measuring instrument. The housing is disposed on the support platform. The sliding rod passes through the housing and is movably and rotatably connected to the housing. The measuring instrument pushes against the sliding rod. The sliding rod includes a rod body and a stop. The stop is disposed at the end of the rod body facing the detection position. The measuring instrument is used to push against the rod body to move the sliding rod relative to the housing and to allow the stop to pass through a hole in the product. The stop also engages with the product when the sliding rod rotates relative to the housing, allowing the measuring instrument to measure the depth of the hole to detect the product.

2. The depth detection device as described in claim 1, characterized in that, The rod is connected to a rotating component, which passes through the housing and can rotate relative to the housing to drive the rod and the stop to rotate.

3. The depth detection device as described in claim 1 or 2, characterized in that, The housing is slidably connected to the support platform; The depth detection device further includes a positioning mechanism, which includes a cam and a handle connected to the cam. The cam is located on the side of the support platform facing away from the detection position and is used to abut against the housing. The cam is used to rotate relative to the support platform under the drive of the handle, so that the housing moves relative to the support platform, thereby moving the housing closer to or away from the detection position.

4. The depth detection device as described in claim 3, characterized in that, The support platform is provided with a slide groove, the housing is slidably connected to the slide groove, and a push elastic member is provided in the slide groove. The push elastic member is connected to the housing and the support platform respectively. The push elastic member elastically resets, causing the housing to move towards the detection displacement until it abuts the cam.

5. The depth detection device as described in claim 4, characterized in that, The positioning mechanism further includes a first positioning pin and a second positioning pin, which are spaced apart on the support platform and are both used to abut the handle to position the housing in two positions.

6. The depth detection device as described in claim 5, characterized in that, The housing is connected to an extension block, and the slide groove passes through the support platform. The housing passes through the slide groove, so that the extension block is located on the side of the support platform facing away from the detection position. The positioning mechanism is connected to the side of the support platform facing away from the detection position, so that the housing moves along the slide groove with the extension block when the cam pushes against the extension block.

7. The depth detection device as described in claim 1, characterized in that, The product has a groove on one side of the hole to be tested, the size of the groove being larger than the size of the hole, so that the groove and the hole are connected to form a stop surface; A snap-fit ​​elastic element is fitted onto the rod body. The snap-fit ​​elastic element is connected to the housing and the rod body respectively. The snap-fit ​​elastic element elastically resets, causing the sliding rod to move away from the detection position, so that the stop block abuts against the stop surface.

8. The depth detection device as described in claim 1, characterized in that, The depth detection device further includes a material ejection mechanism, which includes a pusher block that passes through the support platform and can move vertically relative to the support platform to eject the product at the detection position.

9. The depth detection device as described in claim 8, characterized in that, The ejection mechanism further includes a connecting rod, a mounting plate, and a wrench. The connecting rod is fixedly disposed on the side of the bearing platform opposite to the detection position. The mounting plate is disposed on the side of the bearing platform opposite to the detection position and can move along the connecting rod toward the bearing platform. The mounting plate is used to fixally connect the push block, and the wrench is rotatably connected to the end of the push block away from the bearing platform. The wrench can rotate relative to the push block to abut against the mounting plate, causing the mounting plate to drive the push block to move along the connecting rod toward the bearing platform, thereby pushing the push block out of the product.

10. The depth detection device as described in claim 9, characterized in that, The connecting rod is provided with a stop portion, which is located at the end of the connecting rod away from the bearing platform, and the stop portion is used to stop the mounting plate. The material ejection mechanism also includes a buffer elastic element, which is sleeved on the connecting rod and abuts against the bearing platform and the mounting plate respectively. The buffer elastic element elastically resets, causing the mounting plate to move away from the bearing platform until the mounting plate contacts the stop portion.

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