An apparatus for detecting the smoothness depth of inner holes on the surface of an aluminum alloy precision component

Abstract

The present invention relates to the technical field of inner hole detection of aluminum alloy components, and specifically discloses a device for detecting the smoothness and depth of inner holes on the surface of precision aluminum alloy components, including a base. At the four corners of the top of the base, support shafts are fixedly installed. At the top of the support shafts, a top seat is fixedly installed. A circular groove is opened inside the top seat. When in use, the third motor is started to drive the first lead screw to drive the sliding block to slide. Since the thread directions at both ends are opposite, the displacement of the detection frame and the distance between the rollers can be adjusted. The second electric push rod is started to insert the detection frame into the hole. The diameter of the hole is calculated by the number of turns of the lead screw rotation. When the second pressure sensor detects the bottom of the hole, the laser ranging sensor is started to measure the depth. During this period, the second motor is started to drive the detection frame to rotate. If the roller is touched due to the uneven inner wall of the hole, the first pressure sensor is triggered, indicating a flaw. The device can quickly detect multiple indexes of the hole, improve the adaptability performance, and the detection is accurate, thus improving the overall detection performance.

Description

Technical Field

[0001] The present invention relates to the technical field of internal hole detection of aluminum alloy components, and in particular to a device for detecting the smoothness depth of internal holes on the surface of precision aluminum alloy components. Background Art

[0002] Precision aluminum alloy components refer to parts or structures with high precision, high quality, and high performance that are made of aluminum alloy materials through fine processing. Aluminum alloy itself has characteristics such as low density, high strength, and good corrosion resistance. On this basis, precision aluminum alloy components use advanced manufacturing processes, such as precision casting and numerical control machining, to control dimensional tolerances and geometric tolerances within an extremely small range, achieving an accuracy level of micrometers or even higher. They have complex and diverse shapes, excellent mechanical properties, can achieve lightweight while ensuring strength and hardness, and are widely used in aircraft structural parts in the aerospace field, engine parts in the automotive industry, the outer shells and internal components of electronic devices, key components of medical devices, etc., playing a crucial role in many high-end industries.

[0003] A Chinese patent with the publication number "CN212674080U" discloses an internal hole diameter detection device for processing aluminum alloy bearing parts, which includes a base, a lighting mechanism, and a detection placement disk. Universal wheels are arranged at the four corners of the lower end of the base, and a detection frame is fixed to the upper end of the base. Protective door bodies are arranged on the outer sides of the front end of the detection frame, and the protective door bodies are connected to the detection frame through hinges. In the present invention, through the vertically fixedly connected detection placement disk and the rotating shaft, the firmness of the connection between the two and the accuracy of the position can be ensured, and there will be no situation where the position shifts during actual use, resulting in tilting and shaking of the detection placement disk during rotation. The limiting sliding groove opened in the lower part of the outer side of the detection placement disk, in cooperation with the limiting support blocks fixed on both sides of the lower part of the inner side of the detection frame, can ensure the stability of the detection placement disk during rotation and prevent tilting and shaking. At the same time, the sliding structure ensures the smoothness during rotation.

[0004] Although the above device can detect the depth inside the bearing hole, it obviously has certain defects and deficiencies during its specific application. First of all, it only uses a camera for detection. During the detection, it is necessary to rely on the human eye to observe the situation captured by the camera to judge the situation inside the bearing hole. Obviously, the camera cannot specifically measure the smoothness or the depth of the hole inside. During its use, it is obviously impossible to detect the diameter of the hole, the smoothness of the inner wall of the hole, and the diameter of the hole. Moreover, during its application process, it can only detect the holes in the vertical direction. When the hole of the aluminum alloy precision component to be detected is located on an inclined plane during its use, it is obviously impossible to adjust flexibly. It can be seen that its adaptability to the detection of aluminum alloy precision components is relatively poor during the overall detection process, and its overall detection performance for holes is relatively poor during the detection. Therefore, it needs to be improved;

[0005] Although the above device can detect the depth inside the bearing hole, during its specific application, there are obviously certain defects and deficiencies. First of all, its detection method only relies on the camera. During the detection process, it is necessary to rely on the human eye to observe the situation captured by the camera to judge the situation inside the bearing hole. However, this camera obviously cannot specifically and accurately measure the smoothness or the depth of the hole inside. Moreover, during the use process, it is also obviously impossible to effectively detect the diameter of the hole, the smoothness of the inner wall of the hole, and the overall diameter of the hole. And during its application process, it can only detect the holes in the vertical direction. If the hole of the aluminum alloy precision component to be detected is located on an inclined plane, the device is obviously unable to adjust flexibly. Thus, it can be seen that its adaptability to the detection of aluminum alloy precision components is relatively weak during the overall detection process, and its overall detection performance for holes is also relatively poor during the detection. Therefore, it is necessary to improve it. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for detecting the smoothness and depth of the inner hole on the surface of an aluminum alloy precision component to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides a device for detecting the smoothness and depth of the inner hole on the surface of an aluminum alloy precision component, including a base. At the four corners of the top of the base, support shafts are fixedly installed. At the top of the support shafts, a top seat is fixedly installed. Inside the top seat, a circular groove is provided. Inside the circular groove, a driving mechanism is rotatably connected. At the top of the driving mechanism, a detection mechanism is fixedly installed. At the bottom of the top seat, four groups of support columns are fixedly installed. At the bottom of the support columns, a substrate is fixedly installed. In the middle of the substrate, a clamping mechanism is fixedly installed;

[0008] The detection mechanism includes an arc-shaped track, which is fixedly installed on the top of the driving mechanism. A carriage is slidably connected inside the arc-shaped track. A support frame is fixedly installed on the top of the carriage. A detection component is rotatably connected inside the support frame. A driving component is fixedly installed on the outside of one support frame, and the end of the driving component is fixedly connected to the detection component.

[0009] Further, the driving component includes a side frame, a driven gear and an arc-shaped rack. The side frame is fixedly installed at the upper end of the outside of one support frame. A first electric push rod is fixedly installed on the top of the side frame. The output end of the first electric push rod penetrates through the side frame and is fixedly installed with a connecting frame. A circular plate is fixedly installed at the lower end of the outside of the connecting frame. A first motor is fixedly installed on the outside of the circular plate. The output end of the first motor penetrates through the connecting frame and is fixedly installed with a driving gear. The driven gears are respectively rotatably connected to the upper and lower ends of the outside of the support frame with the side frame. The driven gear at the upper end is fixedly connected to the detection component. The arc-shaped rack is fixedly installed on one side of the arc-shaped track close to the first motor. The driven gear at the bottom is meshed with the arc-shaped rack.

[0010] Further, linkage rods are fixedly installed at both the upper and lower ends of the inside of the circular plate. Limit teeth are fixedly installed at the inner ends of the linkage rods. One limit tooth is meshed with one driven gear.

[0011] Further, the detection component includes a rotating shaft, which is rotatably connected to the upper end of the inside of the support frame. A second electric push rod is fixedly installed at the inner end of the rotating shaft. The outer end of one rotating shaft is fixedly connected to the driven gear at the upper end. An installation frame is fixedly installed at the bottom of the second electric push rod. A second motor is fixedly installed inside the installation frame. The output end of the second motor penetrates through the installation frame and is fixedly installed with a detection part.

[0012] Further, the detection part includes a bottom rail, which is fixedly installed at the bottom output end of the second motor. A first lead screw is rotatably connected inside the bottom rail. The thread directions of both ends of the first lead screw are opposite. Sliding blocks are threadedly connected to both ends of the first lead screw. First pressure sensors are fixedly installed at the bottoms of the sliding blocks. A detection frame is fixedly installed on the outside of the first pressure sensors. A roller is rotatably connected to the lower end of the outer surface of the detection frame. A third motor is fixedly installed at one end of the bottom rail. The output end of the third motor is fixedly connected to one end of the first lead screw.

[0013] Further, a second pressure sensor is fixedly installed at the bottom of the detection frame, and a laser distance sensor is fixedly installed in the middle of the bottom of the bottom rail.

[0014] Further, the driving mechanism includes a slip ring and a rear bracket. The slip ring is slidably connected to the inside of the circular groove. A toothed ring is fixedly installed on the top of the slip ring. The rear bracket is fixedly installed on the front side and the middle of the bottom of the top seat. A fourth motor is fixedly installed on the top of the rear bracket. The output of the fourth motor is fixedly installed with a driving gear. The driving gear is meshed with the toothed ring. The arc-shaped rail is fixedly installed on the top of the slip ring.

[0015] Further, a main cover shell is fixedly installed on the top of the top seat. The main cover shell covers the outside of the toothed ring. A sub-cover shell is fixedly installed on the outside of the rear bracket. The sub-cover shell covers the outside of the driving gear.

[0016] Further, the clamping mechanism includes a telescopic cylinder. The telescopic cylinder is fixedly installed in the middle of the substrate. A base plate is fixedly installed on the top of the telescopic cylinder. A clamping assembly is fixedly installed in the middle of the top of the base plate. Support fixing shafts are fixedly installed at equal intervals on the bottom of the base plate. The bottom of the support fixing shaft penetrates through the substrate. The support fixing shaft is slidably connected to the substrate.

[0017] Further, the clamping assembly includes a top rail. The top rail is fixedly installed on the top of the base plate. A fifth motor is fixedly installed at one end inside the top rail. The output end of the fifth motor penetrates through the top rail and is fixedly installed with a second lead screw. The second lead screw is rotatably connected to the inside of the top rail. The thread directions of the two ends of the second lead screw are opposite. Displacement blocks are threadedly connected to both ends of the second lead screw. A side plate is fixedly installed on the top of the displacement block. A clamping plate is fixedly installed at the upper end inside the side plate. Anti-slip protrusion parts are fixedly connected at equal intervals on the inside of the clamping plate. The first motor, the second motor, the third motor, the fourth motor and the fifth motor are all integrated with encoders.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] First, in the present invention, the product to be detected is placed on the top of the electric cabinet. The fifth motor is started to drive the second lead screw to rotate. Since the thread directions of the two ends of the second lead screw are opposite, it can drive the two displacement blocks to slide reciprocally, assisting the displacement of the clamping plate to realize the flexible and rapid clamping of aluminum alloy precision metal components of different sizes, improving the adaptability. During the clamping and positioning, the telescopic cylinder can also be started to push the base plate to move up and down, flexibly adjusting the height of the clamped component to adapt to the hole detection of components of different sizes;

[0020] Second, in the present invention, by setting up a detection mechanism, after the precision metal component of aluminum alloy is clamped and fixed, the telescopic cylinder is activated to push the base plate to move up and down, adjusting the height position of the component. During overall adjustment, the fourth motor is started to drive the driving gear to rotate. Since the driving gear meshes with the toothed ring, the toothed ring is driven to rotate, and then the slip ring is driven to rotate, prompting the detection assembly to displace at the upper end of the component, flexibly changing the detection direction, enhancing the overall detection adaptation ability, and significantly improving the detection adaptation performance;

[0021] Third, in the present invention, when the device detects by the detection mechanism, the driving mechanism adjusts the rotation of the toothed ring to drive the arc-shaped track to rotate, thereby flexibly adjusting the rotation of the detection assembly. The first electric push rod is activated to push the connecting frame to displace, making the driving gear mesh with the driven gear. Then the first motor is started. By the driven gear abutting against the arc-shaped rack, the sliding frame is prompted to slide within the arc-shaped track. Cooperating with the rotation of the arc-shaped track, the detection assembly can be flexibly adjusted to any position on the top of the clamped component, showing the strong adaptation and adjustment ability of the device, and being able to adapt to the detection of holes in different directions, angles, and positions;

[0022] Fourth, in the present invention, a driving component is set. During adjustment, the first electric push rod pushes the driving gear close to the driven gear. Starting the first motor can drive the sliding frame and the detection assembly to slide and displace. When the second motor is pushed, the limiting teeth of the linkage rod mesh with the driving gear to lock the rotating shaft. After the adjustment is completed, the electric push rod retracts, and the driving gear moves up to mesh. The linkage rod locks the driven gear to fix the sliding frame. After fixation, the first motor is started to drive the driving gear, assisting the rotating shaft to rotate, enabling the second electric push rod to adjust the orientation of the detection component and further adjusting the inclination angle, improving the detection adaptation ability. During this period, only a single set of motors is used, and cooperating with other mechanisms can adapt to components of different sizes, improving the use adaptation performance;

[0023] Fifth, in the present invention, a detection assembly is set. When in use, the third motor is started to drive the first lead screw to drive the sliding block to slide. Since the thread directions at both ends are opposite, the displacement of the detection frame and the distance between the rollers can be adjusted. The second electric push rod is activated to insert the detection frame into the hole. The diameter of the hole is calculated by the number of turns of the lead screw rotation. When the second pressure sensor detects the bottom of the hole, the laser distance sensor is started to measure the depth. During this period, the second motor is started to drive the detection frame to rotate. If the roller is abutted due to the uneven inner wall of the hole, touching the first pressure sensor indicates a flaw. The device can quickly detect multiple indicators of the hole, improving the adaptation performance, with accurate detection and enhancing the overall detection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the rear view structural schematic diagram of the present invention;

[0026] Figure 3 is the bottom view structural schematic diagram of the present invention;

[0027] Figure 4 This is the schematic top view structure diagram of the present invention;

[0028] Figure 5 This is the schematic front view structure diagram of the detection mechanism in the present invention;

[0029] Figure 6 This is the schematic bottom view structure diagram of the detection mechanism in the present invention;

[0030] Figure 7 This is the schematic rear view structure diagram of the detection mechanism in the present invention;

[0031] Figure 8 This is the schematic overall structure diagram of the driving component and the detection component in the present invention;

[0032] Figure 9 This is the schematic side view structure diagram of the driving component and the detection component in the present invention;

[0033] Figure 10 This is the schematic bottom view structure diagram of the detection component in the present invention.

[0034] In the figure: 1, base; 2, support shaft; 3, top seat; 4, circular groove; 5, driving mechanism; 51, slip ring; 52, rear bracket; 53, toothed ring; 54, fourth motor; 55, driving gear; 56, secondary cover shell; 57, main cover shell; 6, detection mechanism; 61, arc-shaped rail; 62, carriage; 63, support frame; 64, detection component; 641, rotating shaft; 642, second electric push rod; 643, mounting frame; 644, second motor; 645, detection part; 6451, bottom rail; 6452, first lead screw; 6453, sliding block; 6454, first pressure sensor; 6455, detection frame; 6456, roller; 6457, third motor; 6458, second pressure sensor; 6459, laser distance measuring sensor; 65, driving component; 651, side frame; 652, driven gear; 653, arc-shaped rack; 654, first electric push rod; 655, connecting frame; 656, circular plate; 657, first motor; 658, driving gear; 659, linkage rod; 6510, limiting tooth; 7, support column; 8, base plate; 9, clamping mechanism; 91, telescopic cylinder; 92, base plate; 93, clamping component; 931, top rail; 932, fifth motor; 933, second lead screw; 934, displacement block; 935, side plate; 936, clamping plate; 937, anti-slip convex part; 94, support shaft. Detailed implementation manners

[0035] Embodiment

[0036] Please refer to Figures 1-10, in the embodiment of the present invention, a device for detecting the smoothness and depth of inner holes on the surface of an aluminum alloy precision component includes a base 1. At the four corners of the top of the base 1, support shafts 2 are fixedly installed. At the top of the support shafts 2, a top seat 3 is fixedly installed. A circular groove 4 is opened inside the top seat 3. A driving mechanism 5 is rotatably connected inside the circular groove 4. At the top of the driving mechanism 5, a detection mechanism 6 is fixedly installed. At the bottom of the top seat 3, four groups of support columns 7 are fixedly installed. At the bottom of the support columns 7, a substrate 8 is fixedly installed. In the middle of the substrate 8, a clamping mechanism 9 is fixedly installed;

[0037] The detection mechanism 6 includes an arc-shaped rail 61. The arc-shaped rail 61 is fixedly installed at the top of the driving mechanism 5. A sliding frame 62 is slidably connected inside the arc-shaped rail 61. At the top of the sliding frame 62, a support frame 63 is fixedly installed. A detection component 64 is rotatably connected inside the support frame 63. On the outside of one support frame 63, a driving component 65 is fixedly installed. The end of the driving component 65 is fixedly connected to the detection component 64. The support shafts 2 at the four corners of the top of the base 1 provide stable support for the top seat 3. The driving mechanism 5 rotatably connected in the circular groove 4 inside the top seat 3 can flexibly adjust the detection direction. The support columns 7 at the bottom of the top seat 3 ensure the stability of the substrate 8 and the clamping mechanism 9. The arc-shaped rail 61 in the detection mechanism 6 is fixed at the top of the driving mechanism 5. The sliding frame 62 slidably connected inside makes the detection more flexible. The support frame 63 at the top of the sliding frame 62 provides an installation basis for the detection component 64 and can rotate. The driving component 65 on the outside can accurately control the detection component 64, realizing the all-round and high-precision detection of the smoothness and depth of the inner holes on the surface of the aluminum alloy precision component. The overall structure is compact, and each component works together, improving the detection efficiency and accuracy, and is applicable to the detection of aluminum alloy components of various specifications.

[0038] Please refer to Figures 1-10, the driving component 65 includes a side frame 651, a driven gear 652 and an arc-shaped rack 653. The side frame 651 is fixedly installed at the upper outer side of a support frame 63. A first electric push rod 654 is fixedly installed at the top of the side frame 651. The output end of the first electric push rod 654 penetrates through the side frame 651 and is fixedly installed with a connecting frame 655. A circular plate 656 is fixedly installed at the lower outer side of the connecting frame 655. A first motor 657 is fixedly installed on the outer side of the circular plate 656. The output end of the first motor 657 penetrates through the connecting frame 655 and is fixedly installed with a driving gear 658. The driven gears 652 are respectively rotatably connected to the upper and lower ends of the outer side of the support frame 63 with the side frame 651. The driven gear 652 at the upper end is fixedly connected to the detection component 64. The arc-shaped rack 653 is fixedly installed on one side of the arc-shaped rail 61 close to the first motor 657. The driven gear 652 at the bottom is meshed with the arc-shaped rack 653. Link rods 659 are fixedly installed at both the upper and lower ends of the inner side of the circular plate 656. Limit teeth 6510 are fixedly installed at the inner ends of the link rods 659. One limit tooth 6510 is meshed with one driven gear 652. The side frame 651 is fixed at the upper outer side of the support frame 63, providing a stable installation position for the first electric push rod 654. The connecting frame 655 at the output end of the first electric push rod 654 can drive the circular plate 656 to move. The driving gear 658 at the output end of the first motor 657 on the outer side of the circular plate 656 can achieve precise power transmission. The driven gears 652 at the upper and lower ends cooperate with the detection component 64 and the arc-shaped rack 653 respectively to realize the position and direction adjustment of the detection component 64. The arc-shaped rack 653 is fixed on one side of the arc-shaped rail 61 to ensure effective meshing with the driven gear 652. The link rods 659 at the upper and lower ends of the inner side of the circular plate 656 and the limit teeth 6510 at their inner ends can engage and lock the driven gear 652, ensuring the position stability of the detection component 64 after adjustment, thereby realizing precise, stable and flexible driving control and making the detection process more efficient, accurate and reliable.

[0039] Please refer to Figures 5-10The detection assembly 64 includes a rotating shaft 641, which is rotatably connected to the inner upper end of the support frame 63. The inner end of the rotating shaft 641 is fixedly installed with a second electric push rod 642. The outer end of one rotating shaft 641 is fixedly connected to a driven gear 652 located at the upper end. A mounting frame 643 is fixedly installed at the bottom of the second electric push rod 642. A second motor 644 is fixedly installed inside the mounting frame 643. The output end of the second motor 644 passes through the mounting frame 643 and is fixedly installed with a detection component 645. The detection component 645 includes a bottom rail 6451, which is fixedly installed at the bottom output end of the second motor 644. The bottom rail 6451 The first screw rod 6452 is rotatably connected to the inside of the bottom rail 6451, and the threads at both ends of the first screw rod 6452 are rotated in opposite directions. The two ends of the first screw rod 6452 are threadedly connected to the sliding blocks 6453, and the bottom of the sliding blocks 6453 are fixedly installed with a first pressure sensor 6454. A detection frame 6455 is fixedly installed on the outside of the first pressure sensor 6454. The lower end of the outer surface of the detection frame 6455 is rotatably connected to a roller 6456. One end of the bottom rail 6451 is fixedly installed with a third motor 6457. The output end of the third motor 6457 is fixedly connected to one end of the first screw rod 6452. The bottom of the detection frame 6455 is fixedly installed with a second pressure sensor The bottom rail 6451 is provided with a laser distance measuring sensor 6459, and the rotating shaft 641 rotates at the inner upper end of the supporting frame 63, providing a flexible rotation basis for the detecting component 645. The second electric push rod 642 at the inner end of the rotating shaft 641 can accurately adjust the height of the detecting component 645. The second motor 644 in the mounting frame 643 can drive the detecting component 645 to rotate to adapt to different detection angles. The threads of the first screw rod 6452 at both ends of the bottom rail 6451 in the detecting component 645 are rotated in opposite directions, and the sliding blocks 6453 at both ends can be driven by the third motor 6457 to move toward or away from each other. By flexibly adjusting the spacing between the detection frames 6455, the first pressure sensor 6454 at the bottom of the sliding block 6453 and the detection frame 6455 can accurately sense the contact pressure, and the roller 6456 at the lower end of the outer surface of the detection frame 6455 is convenient for flexible rolling during detection, thereby improving the smoothness of detection. The second pressure sensor 6458 at the bottom of the detection frame 6455 and the laser ranging sensor 6459 in the middle of the bottom of the bottom rail 6451 can detect pressure and distance respectively, thereby realizing accurate measurement of multiple indicators such as the depth and smoothness of the inner holes on the surface of aluminum alloy precision components. The overall structural design is exquisite, and the various components work together to effectively improve the accuracy and efficiency of detection.

[0040] See also Figures 1-7, the driving mechanism 5 includes a slip ring 51 and a rear bracket 52. The slip ring 51 is slidably connected to the inside of the circular groove 4. A toothed ring 53 is fixedly installed on the top of the slip ring 51. The rear bracket 52 is fixedly installed on the front side and the middle of the bottom of the top seat 3. A fourth motor 54 is fixedly installed on the top of the rear bracket 52. The output of the fourth motor 54 is fixedly installed with a driving gear 55. The driving gear 55 is meshed with the toothed ring 53. The arc-shaped rail 61 is fixedly installed on the top of the slip ring 51. The main cover shell 57 is fixedly installed on the top of the top seat 3. The main cover shell 57 covers the outside of the toothed ring 53. The auxiliary cover shell 56 is fixedly installed on the outside of the rear bracket 52. The auxiliary cover shell 56 covers the outside of the driving gear 55. The slip ring 51 is slidably connected to the inside of the circular groove 4, ensuring the smoothness and accuracy of its movement. The toothed ring 53 on the top of the slip ring 51 is meshed with the driving gear 55 at the output end of the fourth motor 54. This design realizes efficient power transmission and precise control. The rear bracket 52 provides a stable installation support for the fourth motor 54. The settings of the main cover shell 57 and the auxiliary cover shell 56 respectively protect the toothed ring 53 and the driving gear 55, reduce the interference and damage of external factors to them, extend the service life of the components, and improve the safety and reliability of the device at the same time. The arc-shaped rail 61 is fixed on the top of the slip ring 51 and can flexibly change its position with the movement of the slip ring 51, realizing the effective adjustment of the detection angle and range. The overall design is compact, and each component cooperates tacitly, providing stable, precise and flexible driving support for the entire detection device, which helps to improve the quality and efficiency of detection.

[0041] Please refer to Figures 1-4, the clamping mechanism 9 includes a telescopic cylinder 91 which is fixedly installed in the middle of the substrate 8. A base plate 92 is fixedly installed at the top of the telescopic cylinder 91. A clamping assembly 93 is fixedly installed in the middle of the top of the base plate 92. Support shafts 94 are fixedly installed at equal intervals at the bottom of the base plate 92. The bottom of the support shafts 94 penetrates through the substrate 8, and the support shafts 94 are slidably connected to the substrate 8. The clamping assembly 93 includes a top rail 931 which is fixedly installed at the top of the base plate 92. A fifth motor 932 is fixedly installed at one end inside the top rail 931. The output end of the fifth motor 932 penetrates through the top rail 931 and is fixedly installed with a second lead screw 933. The second lead screw 933 is rotatably connected inside the top rail 931. The thread directions at both ends of the second lead screw 933 are opposite. Displacement blocks 934 are threadedly connected to both ends of the second lead screw 933. A side plate 935 is fixedly installed at the top of the displacement block 934. A clamping plate 936 is fixedly installed at the upper end of the inner side of the side plate 935. Anti-slip protrusions 937 are fixedly connected at equal intervals on the inner side of the clamping plate 936. The first motor 657, the second motor 644, the third motor 6457, the fourth motor 54 and the fifth motor 932 are all integrated with encoders. The telescopic cylinder 91 is fixed in the middle of the substrate 8 and can stably drive the base plate 92 to move up and down, so as to flexibly adjust the height of the clamped object. The support shafts 94 at equal intervals at the bottom of the base plate 92 are slidably connected to the substrate 8, enhancing the stability and accuracy of the up and down movement of the base plate 92. The top rail 931 in the clamping assembly 93 provides an installation basis for internal components. The fifth motor 932 drives the second lead screw 933 with opposite thread directions at both ends to rotate, driving the displacement blocks 934 to move towards or away from each other, so that the clamping plate 936 on the inner side of the side plate 935 can reliably clamp the object. The anti-slip protrusions 937 on the inner side of the clamping plate 936 enhance the clamping stability and prevent the object from slipping. Each motor is integrated with an encoder, which can accurately measure the rotation parameters of the motor, realize precise control of the clamping action and position, improve the clamping accuracy and reliability, adapt to aluminum alloy precision components of different sizes, and ensure the smooth progress of the detection process.

[0042] The working principle of the present invention is as follows: Place the product to be detected on the top of the electric cabinet, then start the fifth motor 932 to run. The fifth motor 932 drives the second lead screw 933 to rotate. The rotation of the second lead screw 933 can drive the displacement block 934 to slide inside the top rail 931. It should be noted that the thread directions at both ends of the second lead screw 933 are opposite, so that the two displacement blocks 934 can be driven to reciprocate and slide, thereby driving the clamping plates 936 to slide relative to each other. During the overall clamping and positioning process, aluminum alloy precision metal components of different sizes can be clamped flexibly and quickly, greatly improving the adaptability of the device during overall use. Moreover, during the clamping and positioning process, the telescopic cylinder 91 can be started to run, and the operation of the telescopic cylinder 91 is used to assist in pushing the base plate 92 to move up and down. The up and down movement of the base plate 92 can flexibly adjust the height of the clamped aluminum alloy precision metal component, facilitating the flexible adaptation to the hole detection of aluminum alloy precision metal components of different sizes;

[0043] By setting the detection mechanism 6, during the use of the device, after the aluminum alloy precision metal component is clamped and fixed, the telescopic cylinder 91 is started to run to push the base plate 92 to move up and down. The up and down movement of the base plate 92 can adjust the height position of the aluminum alloy precision metal component. Moreover, during the overall adjustment process, the fourth motor 54 can be started to run. When the fourth motor 54 runs, it can drive the driving gear 55 to rotate. Since the driving gear 55 is meshed with the toothed ring 53, at this time, the toothed ring 53 can be driven to rotate by the driving gear 55. The rotation of the toothed ring 53 can assist in driving the slip ring 51 to rotate, and the rotation of the slip ring 51 can adjust the rotation of the detection component 64, causing the detection component 64 to displace at the upper end of the aluminum alloy precision metal component to be detected. Such a design can flexibly change the detection direction of the detection component 64, making the adaptability of the device stronger during the overall detection process and significantly improving the adaptability of the overall detection of the device;

[0044] By setting up the detection mechanism 6, during the detection of the device, as the driving mechanism 5 adjusts the rotation of the gear ring 53, the entire arc-shaped rail 61 can rotate at this time. The rotation of the arc-shaped rail 61 can flexibly adjust the rotation of the detection component 64. At this time, by starting the first electric push rod 654 to push the connecting frame 655 to displace, the displacement of the connecting frame 655 can flexibly adjust the displacement of the active gear 658 towards one side of the arc-shaped rack 653. When the active gear 658 meshes and connects with the driven gear 652 close to the arc-shaped rack 653 at this time, and then start the first motor 657 to operate. The first motor 657 drives the active gear 658 to rotate. The active gear 658 and the driven gear 652 located at the bottom are engaged and transmitted. At this time, the driven gear 652 and the arc-shaped rack 653 can be in reverse contact, thereby promoting the sliding of the carriage 62 inside the arc-shaped rail 61. At this time, the carriage 62 can slide inside the arc-shaped rail 61, and cooperate with the driving mechanism 5 to drive the arc-shaped rail 61 to rotate, so that the detection component 64 of the device can be flexibly adjusted to any position on the top of the clamped aluminum alloy precision metal component. It can be seen that the overall adaptability and adjustment ability of the device are relatively strong, and the whole can be adjusted and adapted more flexibly, and can be adapted to the hole detection of aluminum alloy precision metal components in different directions, different angles and different positions;

[0045] By setting the driving assembly 65, during the adjustment of the device, as the first electric push rod 654 pushes the driving gear 658 at the lower end close to the driven gear 652 on one side of the arc-shaped rack 653, the first motor 657 is started at this time to cooperate with the arc-shaped rack 653 to drive the slide 62 and the detection assembly 64 to slide and move, and when the first electric push rod 654 pushes the second motor 644 on the circular plate 656 close to the arc-shaped rack 653, the limiting tooth 6510 on the linkage rod 659 on the circular plate 656 can mesh with the driving gear 658 at the upper end. At this time, the driving gear 658 is locked and can fix the rotating shaft 641. After the adjustment is completed, the electric push rod can be started to retract, which can drive the driving gear 658 to move up. The driving gear 658 at the bottom can move up and mesh with the driving gear 658 at the top. At this time, the linkage rod 659 at the bottom drives the limit tooth 6510 to contact the driven gear 652 at the bottom, so as to lock and fix the driven gear 652 at the bottom. At this time, the driven gear 652 and the arc-shaped rack 653 are fixed to each other, so that the slide 62 can be fixed inside the arc-shaped rail 61. After the slide 62 is fixed, the first motor 657 can be started to drive the driving gear 658 to rotate. The driving gear 658 is meshed with the driven gear 652 at the top. At this time, the driving gear 658 and the driven gear 652 can be meshed with each other to drive the rotation shaft 641 to rotate flexibly. The rotation of the rotation shaft 641 can assist in driving the second electric push rod 642 to move for angle adjustment. The displacement of the second electric push rod 642 can flexibly adjust the direction of the detection component 645, so that the device can further adjust its tilt angle during the adjustment process. The overall detection adaptability of the device can be further improved. During this period, the driving gear 658 only needs to be pushed close to the two driven gears 652 by the first electric push rod 654. During this period, the limiting teeth 6510 at the end of the linkage rod 659 are engaged and fixed with the driven gears 652 that are far away. Therefore, the device only needs to use a single set of motors to flexibly drive the displacement of the detection component 64 and adjust its angle. It cooperates with the driving mechanism 5 and the clamping mechanism 9 to flexibly adapt to aluminum alloy precision components of different sizes, which significantly improves the overall use adaptability of the device.

[0046] By setting the detection component 64, during the use of this device, the third motor 6457 can be started to operate. When the third motor 6457 operates, it can drive the first lead screw 6452 to drive the sliding block 6453 to slide reciprocally inside the bottom rail 6451. Since the thread directions at both ends of the first lead screw 6452 are opposite, at this time, the reciprocating sliding of the driving sliding block 6453 can be flexibly adjusted. At this time, the sliding displacement of the sliding block 6453 can adjust the mutual displacement of the two detection frames 6455. The mutual displacement of the detection frames 6455 can flexibly adjust the distance between the rollers 6456. At this time, when the second electric push rod 642 is started to operate, it can drive the laser distance sensor 6459 and the second pressure sensor 6458 towards the hole of the aluminum alloy precision metal component. At this time, the detection frame 6455 can be inserted into the inside of the hole. At this time, the first lead screw 6452 can be used to drive the sliding block 6453 to slide reciprocally, so that the sliding block 6453 drives the roller 6456 to fit inside the hole. At this time, the first pressure sensor 6454 detects the pressure. The detection frame 6455 is an elastic memory metal frame body, which has a certain elasticity and can reset. It can be set as a spring steel material. When it rotates inside the hole, it can deform adaptively and can achieve a better detection effect. By calculating the encoder parameters of the third motor 6457, the number of turns of the lead screw rotation can be obtained. At this time, the displacement distance of the sliding block 6453 can be calculated, and then the diameter of its hole can be calculated. As the second electric push rod 642 operates, it can push the detection frame 6455 into the hole. When the second pressure sensor 6458 detects the bottom of the hole, the laser distance sensor 6459 can be started to operate. At this time, the depth of the hole can be detected. During this period, the second motor 644 can be started to operate. The second motor 644 can drive the detection frame 6455 to rotate. The roller 6456 on the outside of the detection frame 6455 fits inside the hole. As the second motor 644 drives the detection frame 6455 to rotate, the roller 6456 rolls inside the hole. If the inside of the hole is uneven, there are defects, pits or lumps on its inner wall, obviously the inside of the hole is uneven. At this time, when the roller 6456 rolls to the uneven place, at this time, the rolling is resisted by the uneven place on the inner wall of the hole, and the first pressure sensor 6454 at the roller 6456 can be touched. Once the first pressure sensor 6454 has a pressure information fluctuation, it indicates that the inside of the hole is uneven and there are defects inside the hole. It can be seen that this device can quickly detect the diameters, depths and the smoothness of the inner holes of different holes during the overall application, can significantly improve the adaptability during the overall application of this device. The overall detection does not require manual judgment, the detection is relatively accurate, and can greatly improve the overall detection performance of this device.

Claims

1. A device for detecting the smoothness depth of inner holes on the surface of aluminum alloy precision components, characterized in that: The invention comprises a base (1), support shafts (2) are fixedly mounted at the four corners of the top of the base (1), a top seat (3) is fixedly mounted on the top of the support shaft (2), a circular groove (4) is provided on the inner side of the top seat (3), a driving mechanism (5) is rotatably connected to the inner side of the circular groove (4), a detection mechanism (6) is fixedly mounted on the top of the driving mechanism (5), four groups of support columns (7) are fixedly mounted on the bottom of the top seat (3), a base plate (8) is fixedly mounted on the bottom of the support column (7), and a clamping mechanism (9) is fixedly mounted in the middle of the base plate (8); The detection mechanism (6) comprises an arc-shaped rail (61), the arc-shaped rail (61) is fixedly mounted on the top of the driving mechanism (5), the interior of the arc-shaped rail (61) is slidably connected to a slide frame (62), the top of the slide frame (62) is fixedly mounted with a support frame (63), the inner side of the support frame (63) is rotatably connected to a detection component (64), the outer side of a support frame (63) is fixedly mounted with a driving component (65), and the end of the driving component (65) is fixedly connected to the detection component (64); The detection assembly (64) comprises a rotating shaft (641), the rotating shaft (641) being rotatably connected to the inner upper end of the support frame (63), a second electric push rod (642) being fixedly mounted on the inner end of the rotating shaft (641), an outer end of the rotating shaft (641) being fixedly connected to a driven gear (652) located at the upper end, a mounting frame (643) being fixedly mounted on the bottom of the second electric push rod (642), a second motor (644) being fixedly mounted inside the mounting frame (643), and an output end of the second motor (644) passing through the mounting frame (643) being fixedly mounted with a detection component (645); The detection component (645) comprises a bottom rail (6451), the bottom rail (6451) is fixedly mounted on the bottom output end of the second motor (644), the inside of the bottom rail (6451) is rotatably connected to a first screw rod (6452), the two ends of the first screw rod (6452) have threads with opposite rotation directions, the two ends of the first screw rod (6452) are threadedly connected to sliding blocks (6453), the bottom of the sliding blocks (6453) are fixedly mounted with a first pressure sensor (6454), the outer side of the first pressure sensor (6454) is fixedly mounted with a detection frame (6455), the lower end of the outer surface of the detection frame (6455) is rotatably connected to a roller (6456), one end of the bottom rail (6451) is fixedly mounted with a third motor (6457), the output end of the third motor (6457) is fixedly connected to one end of the first screw rod (6452); A second pressure sensor (6458) is fixedly mounted on the bottom of the detection frame (6455), and a laser distance sensor (6459) is fixedly mounted in the middle of the bottom of the bottom rail (6451).

2. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 1 is characterized in that: The driving assembly (65) comprises a side frame (651), a driven gear (652) and an arc-shaped rack (653); the side frame (651) is fixedly mounted on the upper end of the outer side of a support frame (63); a first electric push rod (654) is fixedly mounted on the top of the side frame (651); an output end of the first electric push rod (654) passes through the side frame (651) and is fixedly mounted with a connecting frame (655); a circular plate (656) is fixedly mounted on the lower end of the outer side of the connecting frame (655); and a first electric push rod (654) is fixedly mounted on the outer side of the circular plate (656). A motor (657), wherein the output end of the first motor (657) passes through the connecting frame (655) and is fixedly mounted with a driving gear (658), the driven gear (652) is rotatably connected to the upper and lower ends of the outer side of a support frame (63) with a side frame (651), the driven gear (652) at the upper end is fixedly connected to the detection component (64), the arc-shaped rack (653) is fixedly mounted on a side of the arc-shaped rail (61) close to the first motor (657), and the driven gear (652) at the bottom is meshingly connected to the arc-shaped rack (653).

3. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 2 is characterized in that: Linkage rods (659) are fixedly mounted on both upper and lower ends of the inner side of the circular plate (656), and limiting teeth (6510) are fixedly mounted on the inner ends of the linkage rods (659), wherein a limiting tooth (6510) is meshingly connected with a driven gear (652).

4. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 3 is characterized in that: The driving mechanism (5) comprises a slip ring (51) and a rear bracket (52); the slip ring (51) is slidably connected to the inside of the circular groove (4); a gear ring (53) is fixedly mounted on the top of the slip ring (51); the rear bracket (52) is fixedly mounted on the bottom front side and the middle of the top seat (3); a fourth motor (54) is fixedly mounted on the top of the rear bracket (52); a driving gear (55) is fixedly mounted on the output of the fourth motor (54); the driving gear (55) and the gear ring (53) are meshingly connected; and the arc-shaped rail (61) is fixedly mounted on the top of the slip ring (51).

5. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 4 is characterized in that: A main covering shell (57) is fixedly mounted on the top of the top seat (3), and the main covering shell (57) covers the outer side of the gear ring (53). A secondary covering shell (56) is fixedly mounted on the outer side of the rear bracket (52), and the secondary covering shell (56) covers the outer side of the driving gear (55).

6. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 5 is characterized in that: The clamping mechanism (9) comprises a telescopic cylinder (91), the telescopic cylinder (91) is fixedly mounted in the middle of the base plate (8), a base plate (92) is fixedly mounted on the top of the telescopic cylinder (91), a clamping assembly (93) is fixedly mounted in the middle of the top of the base plate (92), and supporting shafts (94) are fixedly mounted at equal intervals on the bottom of the base plate (92), the bottom of the supporting shaft (94) passes through the base plate (8), and the supporting shaft (94) and the base plate (8) are slidably connected.

7. The device for detecting the inner hole smoothness depth of the surface of an aluminum alloy precision component according to claim 6 is characterized in that: The clamping assembly (93) comprises a top rail (931), the top rail (931) being fixedly mounted on the top of the base plate (92), a fifth motor (932) being fixedly mounted on one end of the interior of the top rail (931), an output end of the fifth motor (932) penetrating the top rail (931) and being fixedly mounted with a second screw rod (933), the second screw rod (933) being rotatably connected to the interior of the top rail (931), the threads of the two ends of the second screw rod (933) being screwed in opposite directions, and the second screw rod (933) being screwed in opposite directions. Both ends of (933) are threadedly connected with displacement blocks (934), the top of the displacement block (934) is fixedly installed with a side plate (935), the inner upper end of the side plate (935) is fixedly installed with a clamping plate (936), the inner side of the clamping plate (936) is fixedly connected with anti-slip protrusions (937) at equal intervals, and the first motor (657), the second motor (644), the third motor (6457), the fourth motor (54) and the fifth motor (932) are all integrated with encoders.

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