An automatic punching device based on machine vision

Abstract

The present invention provides an automatic punching device based on machine vision, comprising a workbench, an inverted U-shaped frame is correspondingly arranged on the top of the workbench, and two workpiece conveying channels with adjustable widths are correspondingly installed on both sides of the top of the workbench; two first strip-shaped mounting seats that can be longitudinally moved and adjusted are correspondingly installed on both sides of the bottom of the top plate of the inverted U-shaped frame, and an automatic hydraulic punching machine that can be transversely moved and adjusted is correspondingly installed on one side of the bottom of the first strip-shaped mounting seat, and the two automatic hydraulic punching machines are respectively located above the middle of the two workpiece conveying channels; a second camera is correspondingly installed on the other side of the bottom of the first strip-shaped mounting seat, a side of the workbench away from the second camera is correspondingly provided with a belt conveyor for conveying workpieces, and a side of the workbench close to the second camera is correspondingly provided with a defective product collection box and a qualified product collection box.

Description

Technical Field

[0001] The present invention relates to the technical field of punching, and in particular to an automatic punching device based on machine vision. Background Art

[0002] Machine vision is a rapidly developing branch of artificial intelligence. Simply put, machine vision is to use machines to replace human eyes for measurement and judgment. The machine vision system converts the captured target into an image signal through machine vision products, transmits it to a dedicated image processing system, obtains the morphological information of the captured target, and converts it into a digital signal based on pixel distribution, brightness, color and other information; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the action of the equipment on site based on the judgment results.

[0003] The application of machine vision has been quite extensive, especially in the field of automatic control. For example, it is very common to punch the center hole of some small round hardware workpieces. However, the existing punching equipment of this type can only be used by workers to punch holes one by one, and then sent to the subsequent program for visual inspection to observe the punching effect. This method is relatively cumbersome, relatively inefficient, and has a low degree of automation, and cannot meet the needs of batch workpiece punching. Therefore, it is necessary to propose an improvement measure to solve the above technical problems. Summary of the invention

[0004] The present invention provides an automatic punching device based on machine vision, which is used to solve the technical problems raised in the above background technology.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: an automatic punching device based on machine vision, comprising a workbench, an inverted U-shaped frame is correspondingly provided on the top of the workbench, and two workpiece conveying channels with adjustable widths are correspondingly installed on both sides of the top of the workbench; two first strip mounting seats that can be longitudinally moved and adjusted are correspondingly installed on both sides of the bottom of the top plate of the inverted U-shaped frame, and an automatic hydraulic punching machine that can be laterally moved and adjusted is correspondingly installed on one side of the bottom of the first strip mounting seat, and the two automatic hydraulic punching machines are respectively located above the middle of the two workpiece conveying channels; a second camera is correspondingly installed on the other side of the bottom of the first strip mounting seat, and a belt conveyor for conveying workpieces is correspondingly provided on the side of the workbench away from the second camera, and a defective product collection box and a qualified product collection box are correspondingly provided on the side of the workbench close to the second camera.

[0006] Preferably, a short shaft driven to rotate is correspondingly installed on the top of the inverted U-shaped frame and the bottom of the workbench, and a variable pitch shaft is transmission-installed at both ends of the short shaft, and two spiral guide grooves are correspondingly opened on both sides of the variable pitch shaft, and a moving seat is cooperated and installed at the two spiral guide grooves inner of the variable pitch shaft on the inverted U-shaped frame, and a moving seat is cooperated and installed at the two spiral guide grooves outer of the variable pitch shaft on the workbench. Rectangular holes are symmetrically opened on both sides of the top of the inverted U-shaped frame and on both sides of the workbench, and strip sliders are longitudinally installed in the rectangular holes. The two moving seats on the inverted U-shaped frame are respectively connected to the two strip sliders on the inverted U-shaped frame, and the two moving seats on the workbench are respectively connected to the two strip sliders on the workbench; the outer ends of the variable pitch shaft on both sides of the inverted U-shaped frame and the outer ends of the variable pitch shaft on both sides of the workbench are correspondingly installed with first pulleys, and a second transmission belt is correspondingly installed between the upper and lower first pulleys, and the inverted U-shaped frame is connected to the variable pitch shaft on the same side of the workbench through the second transmission belt.

[0007] Preferably, the middle part of the short shaft on the workbench is rotatably installed on the second support seat, and the second support seat is installed on the bottom of the workbench; the middle part of the short shaft on the inverted U-shaped frame is installed with a second pulley, and the top side of the inverted U-shaped frame is installed with a first motor, and the output shaft of the first motor is installed with a third pulley, and a third transmission belt is installed between the second pulley and the third pulley.

[0008] Preferably, first support seats are correspondingly provided on both sides of the bottom of the workbench and on both sides of the top of the inverted U-shaped frame, and one end of the pitch-changing shaft on both sides of the short shaft is rotatably installed on the first support seats on both sides through bearings; a fixing ring is correspondingly provided on the other side of the pitch-changing shaft, and a sleeve is correspondingly slidably sleeved on the pitch-changing shaft, and the sleeve is correspondingly located on the inner side of the fixing ring on the pitch-changing shaft, and a first compression spring is correspondingly installed between the sleeve and the fixing ring; a plurality of penetrating strip grooves are correspondingly opened around the inner hole of the sleeve, and a plurality of first clamping strips that slide and cooperate with the strip grooves on the sleeve are correspondingly provided around the outer wall of the other side of the pitch-changing shaft; the outer walls on both sides of the short shaft are respectively provided with a plurality of first clamping strips that slide and cooperate with the strip grooves on the sleeve; A plurality of second clips are arranged around the circumference, which are slidably matched with the strip grooves on the sleeve. When the first compression spring is in a natural state, the sleeve can be slidably installed on the short shaft accordingly. Second motors are installed at corresponding positions on the bottom of the workbench and the top of the inverted U-shaped frame. The second motor is located on one side of the middle of the short shaft. A paddle is installed on the output shaft of the second motor. An extension plate is arranged on the side of the sleeve close to the paddle. When working, the two second motors are controlled at the same time to drive the paddles to rotate toward one side, so that they can rest on the extension plate on this side, so that the sleeve on this side slides off the short shaft, so that the transmission between the upper and lower variable pitch shafts and the short shaft on this side can be released at the same time.

[0009] Preferably, a linear module is installed on one side of the bottom of the first strip-shaped mounting seat, and an automatic hydraulic punching machine is installed on the slide of the linear module; an L-shaped mounting frame is also installed on one side of the slide, and a first camera and a cross-line laser locator are installed on the bottom of the L-shaped mounting frame, and the first camera and the cross-line laser locator both point to the workpiece to be inspected under the automatic hydraulic punching machine; an electric telescopic rod is installed on the other side of the bottom of the first strip-shaped mounting seat, and the second camera is installed at the bottom telescopic end of the electric telescopic rod.

[0010] Preferably, two second strip mounting seats that can be longitudinally moved and adjusted are symmetrically provided on both sides of the top of the workbench, and the two second strip mounting seats are respectively installed on the top of the two strip sliders of the workbench; a second strip mounting seat is also fixedly provided in the middle of the bottom end of the workbench, and the middle parts of the tops of the three second strip mounting seats are respectively provided with dividing strips, and workpiece conveying channels are formed between adjacent dividing strips; chain conveyors are correspondingly provided on the tops of both sides of the second strip mounting seat located in the middle, and chain conveyors are also correspondingly provided on the tops of the inner sides of the second strip mounting seats located on both sides; limiting mechanisms are also correspondingly provided at the corresponding positions in the middle of the second strip mounting seats on both sides, which are used to limit and fix the workpiece to be punched.

[0011] Preferably, the limiting mechanism includes a first telescopic cylinder, which is installed at a corresponding position in the middle of the outer top end of the second strip mounting seat on the side, a mounting plate is installed at the top of the first telescopic cylinder, and a limiting column is installed at the bottom of the other side of the mounting plate, a ring plate is provided on the limiting column, a fixed strip plate is provided under the ring plate, an annular sleeve is provided on one side of the fixed strip plate, the annular sleeve is slidably installed on the limiting column, and a second compression spring is connected between the annular sleeve and the ring plate, so that the limiting column can be pressed against one side of the workpiece to be punched, so that the workpiece to be punched is located directly below the automatic hydraulic punching machine, and the workpiece is elastically pressed by the fixed strip plate for punching.

[0012] Preferably, one side of the dividing strip plate inlet extends out and is placed on the top of the belt conveyor belt, and one side of the dividing strip plate out of the outlet extends out of the workbench and then tilts downward to form a transition plate, and the qualified product collection box is correspondingly located under the transition plate; the part of the dividing strip plate on the outlet side extending out of the workbench on the one side is extended inwardly to be provided with a rib, and the part of the dividing strip plate on the outlet side extending out of the workbench on the one side is extended to be provided with a rib on both sides, and the dividing strip plate located in the middle is provided with a notch on the rib near the outlet side, and a rotating baffle that can be rotatably opened or closed is correspondingly installed in the notch, and a first connecting plate and a second connecting plate are respectively correspondingly provided on the rotating baffles on both sides of the workpiece conveying channel, the first connecting plate is slidably inserted into the second connecting plate, and a vertical plate is correspondingly provided on the bottom of the workbench near the outlet side, a second telescopic cylinder is rotatably installed on the vertical plate, and the other end of the second telescopic cylinder is rotatably installed on the bottom of the first connecting plate, and the unqualified product collection box is correspondingly located under the first connecting plate of the workpiece conveying channel; a waste collection box is also correspondingly provided under the rectangular hole of the workbench.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the present invention is in use, the width of the workpiece conveying channel and the position of the automatic hydraulic punching machine are first synchronously adjusted according to the size of the workpiece to be punched. By adopting the same variable pitch shaft, the automatic hydraulic punching machine is always located above the middle of the workpiece conveying channel. Due to the arrangement of components such as the sleeve and the first compression spring, the widths of the workpiece conveying channels on both sides can also be set to different widths, which is convenient for processing two workpieces. The overall design is ingenious, and holes can be punched automatically. Visual inspection can be performed after punching to pick out defective products. The use is very convenient, the degree of automation is high, and the efficiency is effectively improved. The needs of punching batch workpieces can be better met, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the automatic punching device of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the top of the inverted U-shaped frame of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure inside the inverted U-shaped frame of the present invention;

[0018] Figure 4 It is a partial enlarged schematic diagram of the cooperation and installation of the short shaft and the variable pitch shaft of the present invention;

[0019] Figure 5 It is a partial enlarged schematic diagram of the connection between the short shaft and the variable pitch shaft of the present invention;

[0020] Figure 6It is a schematic diagram of the structure of the components on the workbench of the present invention;

[0021] Figure 7 It is a schematic diagram of the top view of the workbench of the present invention;

[0022] Figure 8 It is a schematic diagram of the bottom structure of the workbench of the present invention;

[0023] Fig. 9 It is an enlarged structural schematic diagram of the limiting mechanism of the present invention;

[0024] Fig.10 It is an enlarged structural schematic diagram of the rotating baffle of the present invention;

[0025] Fig.11 It is a schematic diagram of the installation enlarged structure of the second telescopic cylinder of the present invention.

[0026] In the figure: 1, workbench; 2, inverted U-shaped frame; 201, rectangular hole; 202, wedge-shaped slide rail; 3, belt conveyor; 4, variable pitch shaft; 401, fixed ring; 402, first clamping strip; 5, first support seat; 6, strip slider; 7, moving seat; 8, first strip mounting seat; 9, linear module; 901, slide seat; 10, automatic hydraulic punching machine; 1001, die punch; 11, L-shaped mounting frame; 12, cross-line laser locator; 13, first camera; 14, electric telescopic rod; 15, second camera; 16, second transmission belt; 17, third transmission belt; 18, first motor; 19, dial plate; 20, second motor; 21, short shaft; 2101, second clamping strip; 22, sleeve; 2201 , retaining ring; 2202, extension plate; 23, first compression spring; 24, support frame; 25, limiting mechanism; 2501, first telescopic cylinder; 2502, mounting plate; 2503, limiting column; 2504, fixed strip; 2505, annular sleeve; 2506, ring plate; 2507, second compression spring; 26, partition strip; 2601, transition plate; 2602, retaining edge; 2603, rotating baffle; 27, waste collection box; 28, unqualified product collection box; 29, qualified product collection box; 2901, qualified product collection trough; 30, second strip mounting seat; 31, chain conveyor; 32, first connecting plate; 33, second connecting plate; 34, second telescopic cylinder; 35, vertical plate; 36, second support seat. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "two ends", "both sides" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference is now made to the accompanying drawings, wherein the purpose of each illustration is only to show certain exemplary embodiments and is not intended to limit the present invention. In each of the drawings, the same reference numerals represent the same or corresponding parts. The dimensions and proportions in each of the drawings are also only for illustration and should not be interpreted as limiting the present invention, and these dimensions may be exaggerated relative to the actual product. Example

[0032] See also Figure 1-Figure 11, an automatic punching device based on machine vision in this embodiment includes a workbench 1, a support frame 24 is correspondingly provided at the bottom of the workbench 1, an inverted U-shaped frame 2 is correspondingly provided at the top of the workbench 1, and two width-adjustable workpiece conveying channels are correspondingly installed on both sides of the top of the workbench 1; two first strip-shaped mounting seats 8 that can be longitudinally moved and adjusted are correspondingly installed on both sides of the bottom of the top plate of the inverted U-shaped frame 2, and an automatic hydraulic punching machine 10 that can be laterally moved and adjusted is correspondingly installed on one side of the bottom of the first strip-shaped mounting seat 8, and a detachable and replaceable die punch 1001 is correspondingly installed at the bottom of the automatic hydraulic punching machine 10. The two automatic hydraulic punching machines 10 are respectively located above the middle of the two workpiece conveying channels; a second camera 15 is correspondingly installed on the other side of the bottom of the first strip-shaped mounting seat 8, a belt conveyor 3 for conveying workpieces is correspondingly provided on the side of the workbench 1 away from the second camera 15, and a defective product collection box 28 and a qualified product collection box 29 are correspondingly provided on the side of the workbench 1 close to the second camera 15.

[0033] like Figure 2 , Figure 3 , Figure 8 As shown, the top of the inverted U-shaped frame 2 and the bottom of the workbench 1 are both correspondingly installed with a short shaft 21 that is driven to rotate, and the two ends of the short shaft 21 are both drivingly installed with a variable pitch shaft 4, and two spiral guide grooves are correspondingly opened on both sides of the variable pitch shaft 4. The two inner spiral guide grooves of the variable pitch shaft 4 on the inverted U-shaped frame 2 are both matched with a moving seat 7, and the two outer spiral guide grooves of the variable pitch shaft 4 on the workbench 1 are both matched with a moving seat 7. Rectangular holes 201 are symmetrically opened on both sides of the top of the inverted U-shaped frame 2 and both sides of the workbench 1, and the longitudinal sliding holes 201 in the rectangular holes 201 are The inverted U-shaped frame 2 is provided with a strip slider 6, and the two movable seats 7 on the inverted U-shaped frame 2 are respectively connected to the two strip sliders 6 on the inverted U-shaped frame 2, and the two movable seats 7 on the workbench 1 are respectively connected to the two strip sliders 6 on the workbench 1; the outer ends of the variable pitch shafts 4 on both sides of the inverted U-shaped frame 2 and the outer ends of the variable pitch shafts 4 on both sides of the workbench 1 are respectively provided with first pulleys, and the second transmission belt 16 is correspondingly installed between the upper and lower first pulleys, and the transmission connection of the variable pitch shafts 4 on the same side of the inverted U-shaped frame 2 and the workbench 1 is realized through the second transmission belt 16. The two sides of the bottom of the top plate of the inverted U-shaped frame 2 are correspondingly provided with wedge-shaped slide rails 202, and the two sides of the first strip mounting seat 8 are correspondingly slidably mounted on the wedge-shaped slide rails 202 on both sides.

[0034] The middle part of the short shaft 21 on the workbench 1 is rotatably mounted on the second support seat 36, and the second support seat 36 is correspondingly installed on the bottom of the workbench 1; the middle part of the short shaft 21 on the inverted U-shaped frame 2 is correspondingly installed with a second pulley, and the top side of the inverted U-shaped frame 2 is correspondingly installed with a first motor 18, and the output shaft of the first motor 18 is correspondingly installed with a third pulley, and a third transmission belt 17 is correspondingly installed between the second pulley and the third pulley.

[0035] like Figure 4 , Figure 5 As shown, first support seats 5 are provided on both sides of the bottom of the workbench 1 and on both sides of the top of the inverted U-shaped frame 2, and one end of the pitch-changing shaft 4 on both sides of the short shaft 21 is rotatably installed on the first support seats 5 on both sides through bearings; a fixing ring 401 is provided on the other side of the pitch-changing shaft 4, and a sleeve 22 is slidably sleeved on the pitch-changing shaft 4, and the sleeve 22 is located on the inner side of the fixing ring 401 on the pitch-changing shaft 4, and a first compression spring 23 is installed between the sleeve 22 and the fixing ring 401; a plurality of through-grooves are provided around the inner hole of the sleeve 22, and a plurality of first clamping strips 402 slidably matched with the strip grooves on the sleeve 22 are provided around the outer wall of the other side of the pitch-changing shaft 4; a plurality of The second clamping strip 2101, when the first compression spring 23 is in a natural state, the sleeve 22 can be slidably installed on the short shaft 21; the second motor 20 is installed at the corresponding positions at the bottom of the workbench 1 and the top of the inverted U-shaped frame 2, and the second motor 20 is located at one side of the middle part of the short shaft 21, and a shift plate 19 is installed on the output shaft of the second motor 20. A retaining ring 2201 is correspondingly provided on the side of the sleeve 22 close to the short shaft 21, and an extension plate 2202 is correspondingly provided on the side of the retaining ring 2201 on the sleeve 22 close to the shift plate 19. When working, the two second motors 20 are controlled at the same time to drive the shift plate 19 to rotate toward one side, so that it can rest on the extension plate 2202 on this side, so that the sleeve 22 on this side slides away from the short shaft 21, so that the transmission between the upper and lower pitch-changing shafts 4 and the short shaft 21 on this side can be released at the same time.

[0036] like Figure 3 As shown, a linear module 9 is installed on one side of the bottom of the first strip-shaped mounting seat 8, and an automatic hydraulic punching machine 10 is installed on the slide 901 of the linear module 9; an L-shaped mounting frame 11 is also installed on one side of the slide 901, and a first camera 13 and a cross-line laser locator 12 are installed on the bottom of the L-shaped mounting frame 11, and the first camera 13 and the cross-line laser locator 12 both point to the workpiece to be inspected under the automatic hydraulic punching machine 10; an electric telescopic rod 14 is installed on the other side of the bottom of the first strip-shaped mounting seat 8, and the second camera 15 is installed at the bottom telescopic end of the electric telescopic rod 14.

[0037] like Figure 6 , Figure 7 As shown, two longitudinally movable and adjustable second strip mounting seats 30 are symmetrically provided on both sides of the top of the workbench 1, and the two second strip mounting seats 30 are respectively installed on the tops of the two strip sliders 6 of the workbench 1; a second strip mounting seat 30 is also fixedly provided in the middle of the bottom end of the workbench 1, and the middle parts of the tops of the three second strip mounting seats 30 are respectively provided with dividing strips 26, and workpiece conveying channels are formed between adjacent dividing strips 26; chain conveyors 31 are correspondingly provided on the tops of both sides of the second strip mounting seat 30 located in the middle, and chain conveyors 31 are also correspondingly provided on the tops of the inner sides of the second strip mounting seats 30 located on both sides; limiting mechanisms 25 are also correspondingly provided at the corresponding positions in the middle of the second strip mounting seats 30 on both sides, which are used to limit and fix the workpiece to be punched.

[0038] like Fig. 9 As shown, the limiting mechanism 25 includes a first telescopic cylinder 2501, which is correspondingly installed at a corresponding position in the middle of the outer top end of the second strip mounting seat 30 on the side, a mounting plate 2502 is correspondingly installed on the top of the first telescopic cylinder 2501, and a limiting column 2503 is correspondingly installed on the bottom of the other side of the mounting plate 2502, and a ring plate 2506 is correspondingly provided on the limiting column 2503, and a fixed strip plate 2504 is correspondingly provided below the ring plate 2506, and an annular sleeve 2505 is correspondingly provided on one side of the fixed strip plate 2504, and the annular sleeve 2505 is slidably installed on the limiting column 2503, and a second compression spring 2507 is correspondingly connected between the annular sleeve 2505 and the ring plate 2506, and the limiting column 2503 can be pressed against one side of the workpiece to be punched, so that the workpiece to be punched is correspondingly located directly below the automatic hydraulic punching machine 10, and the workpiece is elastically pressed by the fixed strip plate 2504 for punching.

[0039] like Fig.10 , Fig.11As shown, one side of the feed port of the dividing strip 26 extends out and is placed on the top of the belt of the belt conveyor 3, and one side of the discharge port of the dividing strip 26 extends out of the workbench 1 and then tilts downward to form a transition plate 2601, and the qualified product collection box 29 is correspondingly located below the transition plate 2601; the part of the dividing strip 26 on the discharge port side extending out of the workbench 1 on both sides extends inwardly and is provided with a rib 2602, and the part of the dividing strip 26 on the discharge port side extending out of the workbench 1 on the middle part extends on both sides and is provided with a rib 2602, and a notch is correspondingly provided on the rib 2602 on the side of the dividing strip 26 close to the discharge port, and a rotating device capable of rotating is correspondingly installed in the notch. The rotating baffle 2603 that can be opened or closed is respectively provided with a first connecting plate 32 and a second connecting plate 33 on the rotating baffles 2603 on both sides of the workpiece conveying channel, and the first connecting plate 32 is slidably inserted into the second connecting plate 33. A vertical plate 35 is correspondingly provided on the bottom of the workbench 1 near the discharge port, and a second telescopic cylinder 34 is rotatably installed on the vertical plate 35, and the other end of the second telescopic cylinder 34 is rotatably installed at the bottom of the first connecting plate 32. The unqualified product collection box 28 is correspondingly located below the first connecting plate 32 of the workpiece conveying channel; a waste collection box 27 is also correspondingly provided below the rectangular hole 201 of the workbench 1. Two qualified product collection slots 2901 are correspondingly provided in the qualified product collection box 29, corresponding to the two workpiece conveying channels.

[0040] The belt conveyor 3, the linear module 9, the automatic hydraulic punching machine 10, the cross-line laser locator 12, the first camera 13, the electric telescopic rod 14, the second camera 15, the first motor 18, the second motor 20, the first telescopic cylinder 2501, the chain conveyor 31, the second telescopic cylinder 34 and other components can be electrically connected to the external control system to achieve automatic control. When the second camera 15 detects that there are defective products, the second telescopic cylinder 34 can be retracted to make the defective products fall into the defective product collection box 28.

[0041] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An automatic punching device based on machine vision, characterized in that: The invention comprises a workbench (1), wherein an inverted U-shaped frame (2) is correspondingly provided on the top of the workbench (1), and two width-adjustable workpiece conveying channels are correspondingly installed on both sides of the top of the workbench (1); two longitudinally movable and adjustable first strip-shaped mounting seats (8) are correspondingly installed on both sides of the bottom of the top plate of the inverted U-shaped frame (2), and an automatic hydraulic punching machine (10) that can be laterally movable and adjustable is correspondingly installed on one side of the bottom of the first strip-shaped mounting seat (8), and the two automatic hydraulic punching machines (10) are respectively located above the middle of the two workpiece conveying channels; a second camera (15) is correspondingly installed on the other side of the bottom of the first strip-shaped mounting seat (8); a belt conveyor (3) for conveying workpieces is correspondingly provided on the side of the workbench (1) away from the second camera (15), and a defective product collection box (28) and a qualified product collection box (29) are correspondingly provided on the side of the workbench (1) close to the second camera (15); The top of the inverted U-shaped frame (2) and the bottom of the workbench (1) are both correspondingly provided with a short shaft (21) that is driven to rotate. The two ends of the short shaft (21) are both drivingly provided with a variable pitch shaft (4). Two spiral guide grooves are correspondingly provided on both sides of the variable pitch shaft (4). A moving seat (7) is provided in cooperation with the two spiral guide grooves on the inner side of the variable pitch shaft (4) on the inverted U-shaped frame (2). The two spiral guide grooves on the outer side of the variable pitch shaft (4) on the workbench (1) are both provided with a moving seat (7). Rectangular holes (201) are symmetrically provided on both sides of the top of the inverted U-shaped frame (2) and both sides of the workbench (1). A longitudinally slidable movable member is provided in the rectangular hole (201). The two movable seats (7) on the inverted U-shaped frame (2) are respectively connected to the two strip sliders (6) on the inverted U-shaped frame (2), and the two movable seats (7) on the workbench (1) are respectively connected to the two strip sliders (6) on the workbench (1); the outer ends of the variable pitch shafts (4) on both sides of the inverted U-shaped frame (2) and the outer ends of the variable pitch shafts (4) on both sides of the workbench (1) are respectively installed with first pulleys, and a second transmission belt (16) is correspondingly installed between the upper and lower first pulleys, and the inverted U-shaped frame (2) and the variable pitch shaft (4) on the same side of the workbench (1) are connected to each other through the second transmission belt (16); Both sides of the bottom of the workbench (1) and both sides of the top of the inverted U-shaped frame (2) are respectively provided with first support seats (5); one end of the variable pitch shaft (4) on both sides of the short shaft (21) is rotatably mounted on the first support seats (5) on both sides through bearings; a fixing ring (401) is correspondingly provided on the other side of the variable pitch shaft (4); a sleeve (22) is correspondingly slidably sleeved on the variable pitch shaft (4); the sleeve (22) is correspondingly located on the inner side of the fixing ring (401) on the variable pitch shaft (4); a first compression spring (23) is correspondingly installed between the sleeve (22) and the fixing ring (401); a plurality of through-grooves are correspondingly provided around the inner hole of the sleeve (22); a plurality of first clamping strips (402) slidably matched with the strip grooves on the sleeve (22) are correspondingly provided around the outer wall of the other side of the variable pitch shaft (4); a plurality of A second clamping strip (2101) is slidably matched with the strip groove on the sleeve (22); when the first compression spring (23) is in a natural state, the sleeve (22) can be slidably installed on the short shaft (21) accordingly; second motors (20) are installed at corresponding positions on the bottom of the workbench (1) and the top of the inverted U-shaped frame (2); the second motor (20) is located at one side of the middle of the short shaft (21); a shift plate (19) is installed on the output shaft of the second motor (20); an extension plate (2202) is provided on one side of the sleeve (22) close to the shift plate (19); when working, the two second motors (20) are controlled simultaneously to drive the shift plates (19) to rotate toward one side, so that they can abut against the extension plate (2202) on the side, so that the sleeve (22) on the side slides off the short shaft (21), so that the transmission between the upper and lower variable pitch shafts (4) on the side and the short shaft (21) can be released simultaneously.

2. The automatic punching device based on machine vision according to claim 1, characterized in that: The middle part of the short shaft (21) on the workbench (1) is rotatably mounted on the second support seat (36), and the second support seat (36) is mounted on the bottom of the workbench (1); the middle part of the short shaft (21) on the inverted U-shaped frame (2) is mounted with a second pulley, a first motor (18) is mounted on one side of the top of the inverted U-shaped frame (2), a third pulley is mounted on the output shaft of the first motor (18), and a third transmission belt (17) is mounted between the second pulley and the third pulley.

3. An automatic punching device based on machine vision according to any one of claims 1-2, characterized in that: A linear module (9) is correspondingly mounted on one side of the bottom of the first bar-shaped mounting seat (8), and an automatic hydraulic punching machine (10) is correspondingly mounted on a slide seat (901) of the linear module (9); an L-shaped mounting frame (11) is also correspondingly mounted on one side of the slide seat (901), and a first camera (13) and a cross-line laser locator (12) are correspondingly mounted on the bottom of the L-shaped mounting frame (11), and both the first camera (13) and the cross-line laser locator (12) point to a workpiece to be inspected below the automatic hydraulic punching machine (10); an electric telescopic rod (14) is correspondingly mounted on the other side of the bottom of the first bar-shaped mounting seat (8), and the second camera (15) is correspondingly mounted on the bottom telescopic end of the electric telescopic rod (14).

4. The automatic punching device based on machine vision according to claim 1, characterized in that: Two longitudinally movable and adjustable second strip mounting seats (30) are symmetrically arranged on both sides of the top of the workbench (1), and the two second strip mounting seats (30) are respectively mounted on the tops of the two strip sliders (6) of the workbench (1); a second strip mounting seat (30) is also fixedly arranged in the middle of the bottom end of the workbench (1), and a partition strip (26) is correspondingly arranged in the middle of the tops of the three second strip mounting seats (30), and a workpiece conveying channel is formed between adjacent partition strips (26); chain plate conveyors (31) are correspondingly arranged on the tops of both sides of the second strip mounting seat (30) located in the middle, and chain plate conveyors (31) are also correspondingly arranged on the tops of the inner sides of the second strip mounting seats (30) located on both sides; and limiting mechanisms (25) are also correspondingly arranged at corresponding positions in the middle of the second strip mounting seats (30) located on both sides, which are used to limit and fix the workpiece to be punched.

5. The automatic punching device based on machine vision according to claim 4, characterized in that: The limiting mechanism (25) comprises a first telescopic cylinder (2501), the first telescopic cylinder (2501) being mounted correspondingly at a position corresponding to the middle of the outer top end of the second strip-shaped mounting seat (30) on the side, a mounting plate (2502) being mounted correspondingly on the top of the first telescopic cylinder (2501), a limiting column (2503) being mounted correspondingly on the bottom of the other side of the mounting plate (2502), a ring plate (2506) being mounted correspondingly on the limiting column (2503), and a fixed strip plate (2506) being mounted correspondingly below the ring plate (2506). 504), an annular sleeve (2505) is correspondingly provided on one side of the fixed strip (2504), and the annular sleeve (2505) is slidably mounted on the limiting column (2503), and a second compression spring (2507) is correspondingly connected between the annular sleeve (2505) and the ring plate (2506), and the limiting column (2503) can be pressed against one side of the workpiece to be punched, so that the workpiece to be punched is correspondingly located directly below the automatic hydraulic punching machine (10), and the workpiece is elastically compressed by the fixed strip (2504) to facilitate punching.

6. The automatic punching device based on machine vision according to claim 4, characterized in that: One side of the feed port of the partition strip (26) extends out and is placed on the top of the belt of the belt conveyor (3); one side of the discharge port of the partition strip (26) extends out of the workbench (1) and then tilts downward to form a transition plate (2601); the qualified product collection box (29) is correspondingly located below the transition plate (2601); the portion of the partition strips (26) on the discharge port side extending out of the workbench (1) on both sides extends inwardly and is provided with a rib (2602); the portion of the partition strips (26) on the discharge port side extending out of the workbench (1) on the middle part extends out of the workbench (1) and is provided with a rib (2602) on both sides; a notch is correspondingly provided on the rib (2602) on the side of the partition strip (26) close to the discharge port, and a corresponding opening that can be rotated to open is installed in the notch. or a closed rotating baffle (2603), the rotating baffles (2603) on both sides of the workpiece conveying channel are respectively provided with a first connecting plate (32) and a second connecting plate (33), the first connecting plate (32) is slidably inserted into the second connecting plate (33), a vertical plate (35) is correspondingly provided on the bottom of the workbench (1) near the discharge port, a second telescopic cylinder (34) is rotatably mounted on the vertical plate (35), the other end of the second telescopic cylinder (34) is rotatably mounted on the bottom of the first connecting plate (32), the defective product collection box (28) is correspondingly located below the first connecting plate (32) of the workpiece conveying channel; a waste collection box (27) is also correspondingly provided below the rectangular hole (201) of the workbench (1).

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