An automatic positioning and focusing detection device based on online machine vision detection

Abstract

The application discloses an automatic positioning and focusing detection device based on online machine vision detection and relates to the technical field of detection devices. The automatic positioning and focusing detection device comprises two first supports, two supporting frames, a second support and a third support arranged between the two supporting frames, a first cylinder and two second cylinders connected with the first support, a first clamping block fixedly connected with a first cylinder output shaft, a first sliding rod inserted on the third support, a second clamping block connected with the first sliding rod, a triggering mechanism arranged between the first clamping block and the second support, a self-adapting mechanism arranged between the first sliding rod and the third support, a moving mechanism arranged between the third support and the supporting frame, and a detection adjusting mechanism connected with the moving mechanism. The automatic positioning and focusing detection device can automatically perform rough focusing and online manual accurate focusing, can be suitable for various types of workpieces, has a wide application range and high work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection devices, in particular to an automatic positioning and focusing detection device based on online machine vision detection. BACKGROUND

[0002] Machine vision is a branch of artificial intelligence that is rapidly developing. Simply put, machine vision is the use of machines to replace the human eye for measurement and judgment. A machine vision system converts the target to be captured into an image signal through machine vision products (i.e. image capture devices, divided into CMOS and CCD), transmits the image signal to a dedicated image processing system, obtains the shape information of the target to be captured, and converts the image signal into a digital signal according to the pixel distribution, brightness, color, etc. The image system performs various operations on these signals to extract the features of the target, and then controls the equipment action on site according to the judgment result.

[0003] The Chinese utility model patent application with publication number CN216350395U discloses a machine vision multifunctional intelligent detection device, which comprises a detection table, a moving frame and a support frame. The detection table is provided with a sliding groove on both sides. The bottom end of the detection table is fixedly connected with support legs. The moving frame comprises two moving frames. Compared with the existing detection device, the device is more flexible and convenient to operate.

[0004] However, the above-mentioned scheme is only suitable for detecting ordinary workpieces. When facing high-precision workpieces, a simple focusing system cannot be applied. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an automatic positioning and focusing detection device based on online machine vision detection, which can be flexibly focused and has a wide range of applications.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: an automatic positioning and focusing detection device based on online machine vision detection, comprising two first supports and two support frames, a second support and a third support being arranged between the two support frames, the second support and the third support being fixedly connected with the support frames, the first support being fixedly connected with a first cylinder and two second cylinders, the output shaft of the first cylinder being fixedly connected with a first clamping block, the first sliding rod being inserted into the third support and being slidably connected with the third support, the first sliding rod being fixedly connected with a second clamping block, a trigger mechanism being arranged between the first clamping block and the second support, an adaptive mechanism being arranged between the first sliding rod and the third support, a moving mechanism being arranged between the third support and the support frame, and the moving mechanism being connected with a detection adjusting mechanism.

[0007] Further, the detection adjusting mechanism comprises two arc-shaped plates, a second sliding rod is inserted in the arc-shaped plates and is slidingly connected between the two arc-shaped plates, a sliding block is fixedly connected to the second sliding rod, a sleeve is fixedly connected to the sliding block, a first lens is inserted in the sleeve and is slidingly connected between the sleeve, the sleeve is fixedly connected to a second lens, a sliding groove is formed in the sleeve, a third sliding rod is slidingly connected in the sliding groove, a support block is fixedly connected to the third sliding rod, a first rack and a second rack are fixedly connected to the support block, the first rack has a larger tooth spacing than the second rack, a first gear is engaged with the first rack, a second gear is engaged with the second rack, the first gear has a larger tooth spacing than the second gear, a fourth support is fixedly connected to the sleeve, an electric cylinder and a first motor are fixedly connected to the fourth support, a fifth support is fixedly connected to an output shaft of the electric cylinder, a first rotating shaft and a second rotating shaft are inserted in the fifth support, the first gear is sleeved on the first rotating shaft and is fixedly connected between the first rotating shaft, the second gear is sleeved on the second rotating shaft and is fixedly connected between the second rotating shaft, an output shaft of the first motor is fixedly connected to the second rotating shaft, the first rotating shaft is connected to the second rotating shaft through a belt, and a reset assembly is arranged on the sleeve.

[0008] Further, the reset assembly comprises a first spring, one end of the first spring is fixedly connected to the support block, the other end of the first spring is fixedly connected to the sleeve, a limiting block is fixedly connected to the sleeve, a plurality of clamping grooves are formed in the limiting block, a connecting block is fixedly connected to the support block, a clamping plate is hingedly connected to the connecting block, the clamping plate is clamped with the clamping grooves, a second spring is fixedly connected to the clamping plate, and the second spring is fixedly connected to the connecting block.

[0009] Further, a double-head motor is fixedly connected to the second sliding rod, a third gear is fixedly connected to an output shaft of the double-head motor, an arc-shaped groove is formed in the arc-shaped plate, the second sliding rod slides in the arc-shaped groove, a plurality of embedding grooves are formed in the arc-shaped plate, the third gear is engaged with the embedding grooves, a guide groove is formed in the arc-shaped plate, and the sliding block slides in the guide groove.

[0010] Further, the trigger mechanism comprises a first fixed block and a second fixed block, the first fixed block is fixedly connected to the second fixed block, the first fixed block is fixedly connected to the second support, a baffle is hingedly connected to the second support, a push plate is hingedly connected to the baffle, the push plate slides in the first fixed block, a sliding plate is slidingly connected in the first fixed block, the sliding plate is inserted in the second fixed block and is slidingly connected between the second fixed block, a third spring is fixedly connected to the sliding plate, a push block is fixedly connected to the third spring, a switch is fixedly connected to the second fixed block, and the second fixed block is electrically connected to the first motor.

[0011] Further, the moving mechanism comprises two second motors fixedly connected with the third support, the two second motors correspond to the two arc-shaped plates one by one, a screw rod is fixedly connected with an output shaft of the second motor, the screw rod is rotationally connected with the second support, and the screw rod penetrates through the arc-shaped plate and is threadedly connected with the arc-shaped plate.

[0012] Further, the self-adapting mechanism comprises a support plate fixedly connected with the first sliding rod, two fourth springs fixedly connected with the support plate, the fourth springs fixedly connected with the third support, two limiting rods fixedly connected with the support plate, and the limiting rods inserted into the third support.

[0013] Compared with the prior art, the present application has the following advantages: (1) The present application adopts an arc-shaped plate, a second sliding rod, a sliding block, a sleeve, a first lens, a second lens, a sliding groove, a third sliding rod, a support block, a first rack, a second rack, a fourth support, an electric cylinder, a first motor, a fifth support, a first rotating shaft, a second rotating shaft and a belt, the support block and the first lens are driven to move by the first rack or the second rack, the distance between the first lens and the second lens can be changed, and thus focusing is realized, automatic rough focusing and manual online precise focusing can be realized due to the different tooth spacing of the first rack and the second rack, the device is suitable for different types of workpieces, the application range of the device is improved, and the work efficiency is improved.

[0014] (2) The present application adopts a first fixed block, a second fixed block, a baffle, a push plate, a sliding plate, a third spring, a push block and a switch, when the workpiece moves, the switch can be triggered by the baffle, the push plate, the sliding plate, the third spring and the push block, and then the first motor is started, the linkage between mechanisms is provided, and manual operation by workers is not needed, which is flexible and convenient.

[0015] (3) The present application adopts a double-head motor, a third gear, an arc-shaped groove, an embedded groove, a guide groove, a second motor and a screw rod, the third gear is driven to rotate by the double-head motor, the third gear can move on the arc-shaped plate under the assistance of the embedded groove, the device can be suitable for various workpieces and irregular objects, detection can be performed from multiple angles, the work efficiency is improved, the arc-shaped plate can be controlled to move in the horizontal direction by the screw rod, and thus different positions on the workpiece can be detected according to actual conditions, and the work efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole structure schematic view of an automatic positioning and focusing detection device based on online machine vision detection.

[0017] Figure 2 is Figure 1 a second perspective structure schematic view.

[0018] Figure 3 is a schematic view of the detection adjusting mechanism.

[0019] Figure 4 is Figure 3 is a schematic view of the structure in the middle after the arc-shaped plate is removed.

[0020] Figure 5 is Figure 4 is a schematic view of the second perspective structure.

[0021] Figure 6 is a schematic view of the detection adjusting mechanism.

[0022] Figure 7 is Figure 6 is a schematic view of the second perspective structure.

[0023] Figure 8 is a schematic view of the reset assembly structure.

[0024] Figure 9 is Figure 8 is an enlarged schematic view of the structure at A in the middle.

[0025] Figure 10 is a schematic view of the sleeve, support block, and second lens connecting structure.

[0026] Figure 11 is a schematic view of the trigger mechanism.

[0027] Figure 12 is Figure 11 is a schematic view of the structure in the middle after the baffle, push plate, and first fixed block are removed.

[0028] Figure 13 is Figure 12 is a schematic view of the structure in the middle after the second fixed block and switch are removed.

[0029] Label:1, the first support; 2, support frame; 3, detection adjusting mechanism; 301, arc plate; 302, second sliding rod; 303, sliding block; 304, sleeve; 305, first lens; 306, second lens; 307, sliding groove; 308, third sliding rod; 309, first rack; 310, second rack; 311, first gear; 312, second gear; 313, fourth support; 314, electric cylinder; 315, first motor; 316, fifth support; 317, first rotating shaft; 318, second rotating shaft; 319, belt; 320, reset component; 3201, first spring; 3202, limit block; 3203, clamping groove; 3204, connecting block; 3205, clamping plate; 3206, second spring; 321, support block; 4, trigger mechanism; 41, first fixed block; 42, second fixed block; 43, baffle; 44, push plate; 45, sliding plate; 46, third spring; 47, push block; 48, switch; 5, moving mechanism; 51, second motor; 52, screw; 6, adaptive mechanism; 61, support plate; 62, fourth spring; 63, limit rod; 7, second support; 8, third support; 9, first cylinder; 10, second cylinder; 11, first clamping block; 12, first sliding rod; 13, second clamping block; 14, double-head motor; 15, third gear; 16, arc groove; 17, guide groove. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0031] Wherein, the drawings are only used for example explanation, the representation is only a schematic diagram, and cannot be understood as a limitation to the patent; in order to better illustrate the embodiments of the present application, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions can be omitted.

[0032] Embodiment: as shown in Figure 1 and Figure 2 The detection device for automatic positioning and focusing based on online machine vision detection proposed in this embodiment is composed of a first support 1, a support frame 2, a second support 7, a third support 8, a first cylinder 9, a second cylinder 10, a first clamping block 11, a first sliding rod 12, a second clamping block 13, a trigger mechanism 4, an adaptive mechanism 6, a moving mechanism 5 and a detection adjusting mechanism 3.

[0033] As shown in Figure 1 , Figure 2 and Figure 3As shown in the figure, an automatic positioning and focusing detection device based on online machine vision detection includes two first supports 1 and two support frames 2, a second support 7 and a third support 8 are arranged between the two support frames 2, the second support 7 and the third support 8 are fixedly connected with the support frame 2, the support frame 2 is arranged to support, the first support 1 is fixedly connected with a first cylinder 9 and two second cylinders 10, the output shaft of the first cylinder 9 is fixedly connected with a first clamping block 11, the second cylinder 10 is arranged to support the workpiece, the third support 8 is inserted with a first sliding rod 12 and is slidably connected therebetween, the first sliding rod 12 is fixedly connected with a second clamping block 13, a trigger mechanism 4 is arranged between the first clamping block 11 and the second support 7, a self-adaptive mechanism 6 is arranged between the first sliding rod 12 and the third support 8, a moving mechanism 5 is arranged between the third support 8 and the support frame 2, and the moving mechanism 5 is connected with a detection adjusting mechanism 3.

[0034] As shown in the figure, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 10 , the detection adjusting mechanism 3 includes two arc-shaped plates 301, the arc-shaped plates 301 are inserted with a second sliding rod 302 and are slidably connected therebetween, the second sliding rod 302 can move in the vertical direction within the arc-shaped plate 301, the second sliding rod 302 is fixedly connected with a sliding block 303, specifically, the sliding block 303 is a sphere, the sliding block 303 is arranged as a sphere to cooperate with a guide groove 17, which can better move along the trajectory of the guide groove 17 within the arc-shaped plate 301, the sliding block 303 is fixedly connected with a sleeve 304, the sleeve 304 is inserted with a first lens 305 and is slidably connected therebetween, the sleeve 304 is fixedly connected with a second lens 306, the sleeve 304 is provided with a sliding groove 307 on the side, the sliding groove 307 is slidably connected with a third sliding rod 308, under the limitation of the sliding groove 307, the third sliding rod 308 can only move linearly in the vertical direction, the third sliding rod 308 is fixedly connected with a support block 321, specifically, as shown in the figure, Figure 10As shown, there are two protrusions fixedly connected to the support block 321, and two limiting grooves are provided on the circumference of the sleeve 304. The protrusions can slide in the limiting grooves. The protrusions and limiting grooves are not marked in the figure. The provided protrusions and limiting grooves can further improve the stability of the support block 321 during movement. The support block 321 is fixedly connected to the first rack 309 and the second rack 310. The tooth spacing of the first rack 309 is greater than the tooth spacing of the second rack 310. The first rack 309 is engaged with the first gear 311, and the second rack 310 is engaged with the second gear 312. The first gear 31 The purpose of the tooth spacing of the first rack 309 being greater than the tooth spacing of the second gear 312, the tooth spacing of the first rack 309 being greater than the tooth spacing of the second rack 310, and the tooth spacing of the first gear 311 being greater than the tooth spacing of the second gear 312 is that when the first gear 311 and the second gear 312 rotate at the same angle, the first rack 309 moves a greater distance than the second rack 310. Therefore, when the first rack 309 moves, it is used to adjust the distance between the first lens 305 and the second lens 306 over a large range, and when the second rack 310 moves, it is used to adjust the distance between the first lens 305 and the second lens 306 over a small range. The distance between the lenses 306 is adjusted to achieve rough focus and precise focus. The fourth bracket 313 is fixedly connected to the peripheral side of the sleeve 304. The fourth bracket 313 is fixedly connected to the electric cylinder 314 and the first motor 315. The output shaft of the electric cylinder 314 is fixedly connected to the fifth bracket 316. The fifth bracket 316 is inserted with a first rotating shaft 317 and a second rotating shaft 318. The first rotating shaft 317 and the second rotating shaft 318 can both rotate in the fifth bracket 316. The first gear 311 is sleeved on the first rotating shaft 317 and the two are fixedly connected. The second gear 312 is sleeved on the second rotating shaft 317. The first motor 315 is fixedly connected to the second rotating shaft 318, the first rotating shaft 317 and the second rotating shaft 318 are connected by a belt 319, and the first rotating shaft 317 drives the second rotating shaft 318 to rotate through the belt 319. The electric cylinder 314 can push the first gear 311 and the second gear 312 to move through the fifth bracket 316, and then mesh the first gear 311 with the first rack 309 or mesh the second rack 310 with the second gear 312 according to actual conditions. A reset assembly 320 is provided on the circumference of the sleeve 304.

[0035] like Figure 8 and Figure 9As shown, the reset assembly 320 includes a first spring 3201, one end of the first spring 3201 is fixedly connected with the supporting block 321, the other end of the first spring 3201 is fixedly connected with the sleeve 304, the sleeve 304 is fixedly connected with a limiting block 3202 on the side, the limiting block 3202 is provided with a plurality of clamping grooves 3203, the clamping grooves 3203 are arranged to limit the clamping plate 3205, the supporting block 321 is fixedly connected with a connecting block 3204, the connecting block 3204 is hingedly connected with the clamping plate 3205, the clamping plate 3205 is clamped with the clamping groove 3203, the clamping plate 3205 is fixedly connected with a second spring 3206, the second spring 3206 is fixedly connected with the connecting block 3204, the purpose of arranging the reset assembly 320 is to reset the supporting block 321 under the action of the first spring 3201, the second spring 3206 and the clamping plate 3205 when the first motor 315 is powered off after one detection, so as to facilitate the next detection.

[0036] As shown in Figure 3 and Figure 4 , the second sliding rod 302 is fixedly connected with a double-head motor 14, the output shaft of the double-head motor 14 is fixedly connected with a third gear 15, the arc-shaped plate 301 is provided with an arc-shaped groove 16, and the purpose of arranging two third gears 15 is to improve the stability of the third gear 15 during movement. The second sliding rod 302 slides in the arc-shaped groove 16, a plurality of embedding grooves are arranged on the side of the arc-shaped plate 301, the third gear 15 is engaged with the embedding grooves, the arc-shaped plate 301 is provided with a guide groove 17, the sliding block 303 slides in the guide groove 17, and the third gear 15 can drive the sleeve 304, the first lens 305 and the second lens 306 to move while sliding in the arc-shaped groove 16. The workpiece can be detected from different angles, and the applicability of the device is improved.

[0037] As shown in Figure 11 , Figure 12 and Figure 13 , the trigger mechanism 4 includes a first fixed block 41 and a second fixed block 42, the first fixed block 41 is fixedly connected with the second fixed block 42, the first fixed block 41 is fixedly connected with the second support 7, the second support 7 is hingedly connected with a baffle 43, the baffle 43 is hingedly connected with a push plate 44, the push plate 44 slides in the first fixed block 41, a sliding plate 45 is slidably connected in the first fixed block 41, the sliding plate 45 is inserted in the second fixed block 42 and slidably connected therebetween, the sliding plate 45 is fixedly connected with a third spring 46, the third spring 46 is fixedly connected with a push block 47, the second fixed block 42 is fixedly connected with a switch 48, and the second fixed block 42 is electrically connected with the first motor 315. When the push block 47 touches the switch 48, the switch 48 transmits a signal to the first motor 315, and the first motor 315 is started without manual operation, which is flexible and convenient.

[0038] As shown in Figure 1 and Figure 2As shown, the moving mechanism 5 comprises two second motors 51 fixedly connected with the third support 8, the two second motors 51 correspond to the two arc-shaped plates 301 one by one, the output shaft of the second motor 51 is fixedly connected with a lead screw 52, the lead screw 52 is rotationally connected with the second support 7, the lead screw 52 penetrates through the arc-shaped plate 301 and is threadedly connected therebetween, while the lead screw 52 rotates, the arc-shaped plate 301 can move on the lead screw 52 along the axis of the lead screw 52, thereby driving the sleeve 304, the first lens 305 and the second lens 306 to move, and different positions of the workpiece can be detected.

[0039] As shown in Figure 1 and Figure 2 As shown, the adaptive mechanism 6 comprises a support plate 61 fixedly connected with the first sliding rod 12, the support plate 61 is fixedly connected with two fourth springs 62, the fourth springs 62 are fixedly connected with the third support 8, the fourth springs 62 are arranged to reset, under the action of the fourth springs 62, workpieces of different lengths can be adapted, the support plate 61 is fixedly connected with two limiting rods 63, the limiting rods 63 are inserted into the third support 8, the limiting rods 63 are arranged to ensure that the first sliding rod 12 does not rotate.

[0040] The working principle disclosed by the application is as follows: (1) the workpiece to be detected is placed on the output shaft of the second cylinder 10, the workpiece to be detected is supported and guided by the output shaft of the second cylinder 10, the first cylinder 9 is started, the output shaft of the first cylinder 9 drives the first clamping block 11 to move, the first clamping block 11 drives the workpiece to be detected to move, the workpiece to be detected drives the baffle 43 to move during the movement, the baffle 43 drives the push plate 44 to move, the push plate 44 drives the sliding plate 45 to move, the sliding plate 45 drives the push block 47 to move through the third spring 46, after the push block 47 contacts the switch 48, the switch 48 transmits a signal to the first motor 315, the first motor 315 is started (at this time, the first gear 311 is engaged with the first rack 309, and the second gear 312 is not engaged with the second rack 310), the output shaft of the first motor 315 drives the second rotating shaft 318 to rotate, the second rotating shaft 318 drives the second gear 312 to rotate (the second gear 312 idles), the second rotating shaft 318 drives the first rotating shaft 317 to rotate through the belt 319, the first rotating shaft 317 drives the first gear 311 to rotate, the first gear 311 drives the first rack 309 to move, the first rack 309 drives the support block 321 to move, the support block 321 drives the third sliding rod 308 to slide in the sliding groove 307, the third sliding rod 308 drives the first lens 305 to move, the distance between the first lens 305 and the second lens 306 can be adjusted, and preliminary rough focusing is performed through the operation, when accurate detection of the workpiece to be detected is required, the movement state of the entire device can be observed by the staff on the external controller, and the electric cylinder 314 is controlled to move, the fifth support 316 is driven by the electric cylinder 314 to move, the fifth support 316 engages the second gear 312 with the first gear 311 during the movement, at this time, the first gear 311 will not be engaged with the first rack 309, the first rack 309 idles, the first gear 311 drives the first rack 309 to move, the first rack 309 drives the first lens 305 to move through the third sliding rod 308, so that the movement path of the first lens 305 in unit time is reduced, and accurate focusing is realized.

[0041] (2) The external staff can manually control the second motor 51 and the double-head motor 14 to start according to the actual situation, the second motor 51 and the double-head motor 14 can be operated independently or synchronously, the output shaft of the second motor 51 drives the screw rod 52 to rotate, while the screw rod 52 rotates, the arc-shaped plate 301 can move on the screw rod 52 along the axial direction of the screw rod 52, the arc-shaped plate 301 can drive the sleeve 304, the first lens 305 and the second lens 306 to move in the movement process, the first lens 305 and the second lens 306 are moved to the specified position, so that the different positions on the workpiece are detected, the double-head motor 14 can drive the third gear 15 to rotate, while the third gear 15 rotates, the third gear 15 can move on the arc-shaped plate 301 with the aid of the embedded groove, at the same time, the sliding block 303 can slide in the guide groove 17, the sleeve 304, the first lens 305 and the second lens 306 can move with the movement of the sliding block 303, and the workpiece can be detected from different angles.

[0042] The present application is not limited to the above specific embodiments, and various modifications made by those skilled in the art based on the above concept without creative labor are all within the protection scope of the present application.

Claims

1. An automatic positioning and focusing detection device based on online machine vision detection, characterized by: The invention comprises two first brackets (1) and two support brackets (2), a second bracket (7) and a third bracket (8) are provided between the two support brackets (2), the second bracket (7) and the third bracket (8) are both fixedly connected to the support bracket (2), the first bracket (1) is fixedly connected to a first cylinder (9) and two second cylinders (10), the output shaft of the first cylinder (9) is fixedly connected to a first clamping block (11), a first sliding rod (12) is inserted into the third bracket (8) and the two are slidably connected, the first sliding rod (12) is fixedly connected to a second clamping block (13), a trigger mechanism (4) is provided between the first clamping block (11) and the second bracket (7), an adaptive mechanism (6) is provided between the first sliding rod (12) and the third bracket (8), a moving mechanism (5) is provided between the third bracket (8) and the support bracket (2), and the moving mechanism (5) is connected to a detection and adjustment mechanism (3); The detection and adjustment mechanism (3) comprises two arc-shaped plates (301), wherein the arc-shaped plates (301) are provided with a second sliding rod (302) and the two are slidably connected, the second sliding rod (302) is fixedly connected with a sliding block (303), the sliding block (303) is fixedly connected with a sleeve (304), a first lens (305) is inserted into the sleeve (304) and the two are slidably connected, the sleeve (304) is fixedly connected with a second lens (306), and the sleeve A sliding groove (307) is provided on the circumferential side of the cylinder (304), and a third sliding rod (308) is slidably connected in the sliding groove (307), and the third sliding rod (308) is fixedly connected to a support block (321), and the support block (321) is fixedly connected to a first rack (309) and a second rack (310), and the tooth spacing of the first rack (309) is greater than the tooth spacing of the second rack (310), and the first rack (309) is meshed with a first gear (311), and the second The rack (310) is meshed with a second gear (312), the tooth pitch of the first gear (311) is greater than the tooth pitch of the second gear (312), the peripheral side of the sleeve (304) is fixedly connected with a fourth bracket (313), the fourth bracket (313) is fixedly connected with an electric cylinder (314) and a first motor (315), the output shaft of the electric cylinder (314) is fixedly connected with a fifth bracket (316), and the fifth bracket (316) is inserted with a first rotating shaft (317) and a second rotating shaft (315). The first gear (311) is sleeved on the first rotating shaft (317) and the two are fixedly connected. The second gear (312) is sleeved on the second rotating shaft (318) and the two are fixedly connected. The output shaft of the first motor (315) is fixedly connected to the second rotating shaft (318). The first rotating shaft (317) and the second rotating shaft (318) are connected via a belt (319). A reset assembly (320) is provided on the circumference of the sleeve (304). The trigger mechanism (4) comprises a first fixed block (41) and a second fixed block (42), the first fixed block (41) is fixedly connected to the second fixed block (42), the first fixed block (41) is fixedly connected to the second bracket (7), the second bracket (7) is hinged with a baffle (43), the baffle (43) is hinged with a push plate (44), the push plate (44) slides in the first fixed block (41), a sliding plate (45) is slidably connected in the first fixed block (41), the sliding plate (45) is inserted into the second fixed block (42) and the two are slidably connected, the sliding plate (45) is fixedly connected to a third spring (46), the third spring (46) is fixedly connected to a push block (47), the second fixed block (42) is fixedly connected to a switch (48), and the second fixed block (42) is electrically connected to the first motor (315); The moving mechanism (5) includes two second motors (51), the second motors (51) are fixedly connected to the third bracket (8), the two second motors (51) correspond to the two arc-shaped plates (301) one by one, the output shaft of the second motor (51) is fixedly connected to a screw rod (52), the screw rod (52) is rotatably connected to the second bracket (7), the screw rod (52) passes through the arc-shaped plate (301) and the two are threadedly connected.

2. The automatic positioning and focusing detection device based on online machine vision detection according to claim 1, characterized in that: The reset assembly (320) includes a first spring (3201), one end of the first spring (3201) is fixedly connected to the support block (321), the other end of the first spring (3201) is fixedly connected to the sleeve (304), the circumferential side of the sleeve (304) is fixedly connected to a limit block (3202), the limit block (3202) is provided with a plurality of slots (3203), the support block (321) is fixedly connected to a connecting block (3204), the connecting block (3204) is hinged with a clamping plate (3205), the clamping plate (3205) is clamped with the slot (3203), the clamping plate (3205) is fixedly connected to a second spring (3206), and the second spring (3206) is fixedly connected to the connecting block (3204).

3. The automatic positioning and focusing detection device based on online machine vision detection according to claim 1, characterized in that: The second sliding rod (302) is fixedly connected to a double-headed motor (14), and the output shaft of the double-headed motor (14) is fixedly connected to a third gear (15). The arc plate (301) is provided with an arc groove (16), and the second sliding rod (302) slides in the arc groove (16). The arc plate (301) is provided with a plurality of embedded grooves on its circumference, and the third gear (15) is engaged with the embedded grooves. The arc plate (301) is provided with a guide groove (17), and the sliding block (303) slides in the guide groove (17).

4. The automatic positioning and focusing detection device based on online machine vision detection according to claim 1, characterized in that: The adaptive mechanism (6) includes a support plate (61), the support plate (61) is fixedly connected to the first sliding rod (12), the support plate (61) is fixedly connected to two fourth springs (62), the fourth springs (62) are fixedly connected to the third bracket (8), the support plate (61) is fixedly connected to two limit rods (63), and the limit rods (63) are inserted into the third bracket (8).

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