Workpiece Detection and Sorting Device and Its Control Method

Abstract

The present invention relates to the technical field of product detection, and specifically discloses a workpiece detection and sorting device and its control method. The detection mechanism of the device is connected to the frame and is used to detect workpieces. The conveying mechanism includes a first conveying component and a second conveying component. The first conveying component is located below the detection mechanism, and the first conveying component conveys the workpieces to the second conveying component. The sorting mechanism includes a flipping frame and a flipping motor. The second conveying component is arranged inside the flipping frame, and the flipping motor can drive the flipping frame to rotate a preset angle relative to the frame according to the detection result of the detection mechanism on the workpieces. The detected workpieces are conveyed into the inside of the flipping frame through the conveying mechanism, and the flipping motor drives the flipping frame to rotate a preset angle relative to the frame according to the detection result of the detection mechanism on the workpieces, so as to separate the abnormal workpieces from the normal workpieces, and there is no need to stop the line and wait for manual removal of the abnormal workpieces, thus improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of product detection, and particularly relates to a workpiece detection and sorting device and a control method thereof. Background Art

[0002] In the field of mechanical manufacturing, sheet metal parts formed through processes such as stamping usually have process defects such as missing or defective positioning holes and non-compliant external dimensions. During mass production, it is necessary to inspect batches of workpieces one by one to screen out workpieces with process defects to avoid entering subsequent assembly. However, the method of inspecting each finished product consumes a large amount of manpower and material resources and significantly reduces production efficiency.

[0003] In response to this, a vision detection solution is provided in the prior art. In this solution, a vision detection module is set on the production line body to perform appearance detection on workpieces. When an abnormality is found in the appearance of a workpiece, the production line stops and alarms until the abnormal workpiece is taken out. However, this solution still requires the production line to stop and wait for manual extraction after an abnormal workpiece is found, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a workpiece detection and sorting device and a control method thereof to solve the problem of low production efficiency existing in existing detection devices.

[0005] The present invention provides a workpiece detection and sorting device, including a frame, a detection mechanism, a conveying mechanism, and a sorting mechanism. The detection mechanism is connected to the frame and is used to detect workpieces. The conveying mechanism includes a first conveying component and a second conveying component. The first conveying component is located below the detection mechanism. Both the first conveying component and the second conveying component are used to convey workpieces. The first conveying component can convey workpieces to the second conveying component. The sorting mechanism includes a flipping frame and a flipping motor. The second conveying component is arranged inside the flipping frame. The flipping motor is installed on the frame and is connected to the flipping frame. The flipping motor can drive the flipping frame to rotate a preset angle relative to the frame according to the detection result of the detection mechanism on the workpiece.

[0006] As a preferred technical solution of the workpiece detection and sorting device, the detection mechanism includes a hole detection component and a dimension detection component;

[0007] The hole detection component includes a portal bracket and a hole position detection piece. The portal bracket is fixedly connected to the frame and is arranged along the width direction of the frame. The hole position detection piece is fixedly connected to the portal bracket and is used to detect the positioning holes of the workpiece;

[0008] The size detection component includes a driving cylinder and a displacement sensor arranged on one side of the rack. The output end of the driving cylinder is connected with a pushing plate. The driving cylinder pushes the workpiece to move along the width direction of the rack through the pushing plate, and the displacement sensor is used to measure the moving distance of the pushing plate.

[0009] As a preferred technical solution of the workpiece detection and sorting device, the size detection component further includes a reverse pushing cylinder. The reverse pushing cylinder is arranged on the other side of the rack, opposite to the driving cylinder, and the reverse pushing cylinder is used to push the workpiece towards the driving cylinder.

[0010] As a preferred technical solution of the workpiece detection and sorting device, the detection mechanism further includes at least two first stopping cylinders. The two first stopping cylinders are arranged at intervals along the width direction of the rack. The first stopping cylinders are arranged downstream of the size detection component, and the first stopping cylinders can limit the forward conveyance of the workpiece along the first conveying component.

[0011] As a preferred technical solution of the workpiece detection and sorting device, the first conveying component includes two first conveyor belts arranged at intervals along the width direction of the rack. The second conveying component includes two second conveyor belts arranged at intervals along the width direction of the rack. The conveying directions of the first conveyor belt and the second conveyor belt are the same. There are two second conveying components, and the two second conveying components are arranged oppositely inside the flipping frame, and the workpiece selectively contacts one of the second conveying components.

[0012] As a preferred technical solution of the workpiece detection and sorting device, two groups of stopping parts are further arranged on the flipping frame. The two groups of stopping parts are respectively arranged at the top and bottom of the flipping frame. One group of stopping parts is located downstream of the other group of stopping parts. Each group of stopping parts includes two second stopping cylinders. The two second stopping cylinders are arranged at intervals along the length direction of the flipping frame, and the second stopping cylinders can limit the conveyance of the workpiece along the second conveying component.

[0013] The present invention provides a control method for a workpiece detection and sorting device, which is applied to the workpiece detection and sorting device of any of the above solutions. The control method of the workpiece detection and sorting device includes:

[0014] The detection mechanism detects the workpiece, the first conveying component conveys the workpiece to the second conveying component, and the second conveying component transports the workpiece to the inside of the flipping frame;

[0015] If the detection result of the workpiece is qualified, the flipping motor drives the flipping frame to rotate a first preset angle relative to the rack from the initial position; otherwise, the flipping motor drives the flipping frame to rotate a second preset angle relative to the rack from the initial position;

[0016] The second conveying component transports the workpiece to the outside of the flipping frame, and the flipping motor drives the flipping frame to rotate to the initial position relative to the rack.

[0017] As a preferred technical solution of the control method of the workpiece detection and sorting device, the detection mechanism includes a hole detection component and a dimension detection component. The hole detection component is used to detect the positioning holes of the workpiece. The dimension detection component includes a driving cylinder and a displacement sensor arranged on one side of the frame. The output end of the driving cylinder is connected with a pushing plate. The driving cylinder pushes the workpiece to move along the width direction of the frame through the pushing plate. The displacement sensor is used to measure the distance that the pushing plate moves.

[0018] The detection of the workpiece by the detection mechanism includes: the hole detection component detects the positioning holes of the workpiece, and the dimension detection component detects the dimensions of the workpiece; only when the detection results of the positioning holes and the dimensions of the workpiece are both qualified, the detection result of the workpiece is qualified.

[0019] As a preferred technical solution of the control method of the workpiece detection and sorting device, the method for the dimension detection component to detect the dimensions of the workpiece includes:

[0020] The driving cylinder extends, and the pushing plate pushes the workpiece to move along the width direction of the frame until one side or end of the workpiece away from the driving cylinder abuts against the frame. The displacement sensor obtains the distance that the pushing plate moves.

[0021] Judge whether the distance that the pushing plate moves is within the preset range. If so, the dimensions of the workpiece are qualified; otherwise, the dimensions of the workpiece are unqualified.

[0022] As a preferred technical solution of the control method of the workpiece detection and sorting device, two sets of stop members are further arranged on the flipping frame. The two sets of stop members are respectively arranged at the top and bottom of the flipping frame. One set of stop members is located in the downstream direction of the other set of stop members. The two sets of stop members can lock the workpiece within the flipping frame; the control method of the workpiece detection and sorting device further includes:

[0023] After the second conveying component transports the workpiece into the interior of the flipping frame, the two sets of stop members lock the workpiece within the flipping frame;

[0024] After the flipping motor drives the flipping frame to rotate a first preset angle or a second preset angle relative to the frame from the initial position, the two sets of stop members release the locking of the workpiece, and the workpiece continues to be conveyed along the second conveying component.

[0025] The beneficial effects of the present invention are:

[0026] The present invention provides a workpiece detection and sorting device. The detected workpiece is conveyed into the interior of the flipping frame through the conveying mechanism. The flipping motor drives the flipping frame to rotate a preset angle relative to the frame according to the detection result of the detection mechanism for the workpiece, so as to separate the abnormal workpieces from the normal workpieces, without having to stop the line and wait for the operator to take out the abnormal workpieces manually, thus improving the production efficiency. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of the workpiece detection and sorting device in the first perspective in the embodiment of the present invention;

[0028] Figure 2 is Figure 1 a partial enlarged view of part A in;

[0029] Figure 3 It is a schematic structural diagram of the workpiece detection and sorting device in the second perspective in the embodiment of the present invention;

[0030] Figure 4 is Figure 3 a partial enlarged view of part B in;

[0031] Figure 5 It is a schematic structural diagram of the workpiece detection and sorting device in the embodiment of the present invention after hiding the frame and the detection mechanism;

[0032] Figure 6 It is a schematic structural diagram of the sorting mechanism in the first perspective in the embodiment of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the sorting mechanism in the second perspective in the embodiment of the present invention.

[0034] In the figure:

[0035] 100, workpiece;

[0036] 1, frame;

[0037] 21, gantry bracket; 22, hole position detector; 23, driving cylinder; 24, pushing plate; 25, displacement sensor; 26, counter-pushing cylinder; 27, first stopping cylinder;

[0038] 31, flipping motor; 32, mounting plate; 33, flipping frame; 34, fixing bracket; 35, track bracket; 36, drag chain; 37, motor bracket; 38, mounting seat; 39, second stopping cylinder;

[0039] 41, first conveyor belt; 42, second conveyor belt; 43, conveyor motor; 44, sprocket; 45, transmission shaft; 46, belt pulley; 47, position sensor;

[0040] 51, receiving cart; 511, notch; 512, wheel; 52, grating. Detailed implementation manners

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0044] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0045] As Figures 1-7As shown in the figure, the present invention provides a workpiece detection and sorting device, which is mainly arranged on the production line of sheet metal or stamping workpieces 100 for detecting and sorting the appearance of sheet metal or stamping workpieces 100. In this embodiment, it can be applied to the detection and sorting of workpieces 100 such as automotive seat brackets and other stamping parts. The workpiece 100 detection and sorting device includes a frame 1, a detection mechanism, a conveying mechanism, and a sorting mechanism. The detection mechanism is connected to the frame 1 and is used to detect the workpiece 100. The conveying mechanism includes a first conveying component and a second conveying component. The first conveying component is located below the detection mechanism. Both the first conveying component and the second conveying component are used to convey the workpiece 100. The first conveying component can convey the workpiece 100 to the second conveying component. The sorting mechanism includes a flipping frame 33 and a flipping motor 31. The second conveying component is arranged inside the flipping frame 33. The flipping motor 31 is installed on the frame 1. The flipping motor 31 is connected to the flipping frame 33. The flipping motor 31 can drive the flipping frame 33 to rotate a preset angle relative to the frame 1 according to the detection result of the detection mechanism on the workpiece 100. The flipping motor 31 is preferably a stepping motor or a servo motor. The detected workpiece 100 is conveyed into the interior of the flipping frame 33 through the conveying mechanism. The flipping motor 31 drives the flipping frame 33 to rotate a preset angle relative to the frame 1 according to the detection result of the detection mechanism on the workpiece 100, so as to separate the abnormal workpiece 100 from the normal workpiece 100, eliminating the need to stop the line and wait for manual removal of the abnormal workpiece 100, thereby improving production efficiency.

[0046] Furthermore, the detection mechanism includes a hole detection component and a dimension detection component. The hole detection component is used to detect the positioning holes of the workpiece 100, and the dimension detection component is used to detect the length or width of the workpiece 100. In this embodiment, since the seat bracket mainly considers the dimensions in the length direction, the dimension detection component detects the length of the workpiece 100 in this embodiment, and the workpiece 100 is arranged along the width direction of the workpiece 100, that is, the length direction of the workpiece 100 is parallel to the length direction of the frame 1. In other embodiments, the width direction of the workpiece 100 can also be detected according to the usage requirements of the workpiece 100.

[0047] Specifically, as Figures 1-4As shown in the figure, the hole detection component includes a portal bracket 21 and a hole position detector 22. The portal bracket 21 is arranged along the width direction of the frame 1. The two ends of the portal bracket 21 are respectively fixedly connected to the left and right sides of the frame 1. The hole position detector 22 is fixedly connected to the cross beam of the portal bracket 21. The hole position detector 22 is used to detect the positioning holes of the workpiece 100. The hole position detector 22 can be a vision camera, a laser sensor, an infrared sensor, etc., preferably a laser sensor to reduce the requirements for the use environment. The hole position detector 22 is used to detect the hole positions and hole diameters of the positioning holes of the workpiece 100. The relevant detection principles are not elaborated here as they are existing technologies in this field.

[0048] Please continue to refer to Figures 1-4 As shown in the figure, the dimension detection component includes a driving cylinder 23 and a displacement sensor 25 arranged on one side of the frame 1. The housing of the driving cylinder 23 is fixedly connected to the frame 1. The driving cylinder 23 is set as a telescopic cylinder, and its telescopic direction is consistent with the width direction of the frame 1. The output end of the driving cylinder 23 is connected with a push plate 24. The driving cylinder 23 pushes the workpiece 100 to move along the width direction of the frame 1 through the push plate 24. The displacement sensor 25 is arranged below the push plate 24 and is used to measure the moving distance of the push plate 24. When the driving cylinder 23 is not extended, the surface of the push plate 24 facing the workpiece 100 is flush with one side surface of the frame 1. As the driving cylinder 23 extends, the workpiece 100 is pushed to move until one end or one side of the workpiece 100 away from the driving cylinder 23 abuts against the frame 1, and the driving cylinder 23 stops. At this time, the displacement sensor 25 measures the moving distance of the push plate 24. At this time, the sum of the length of the workpiece 100 and the moving distance of the push plate 24 is the distance between the two inner side surfaces of the frame 1. Since the distance between the two inner side surfaces of the frame 1 is fixed, the length of the workpiece 100 can be calculated by subtracting the moving distance of the push plate 24 from the distance between the two inner side surfaces of the frame 1. At the same time, according to the range of the length of the qualified workpiece 100, the corresponding range of the moving distance of the push plate 24, that is, the preset range, can be calculated. In actual production, it is only necessary to judge whether the moving distance of the push plate 24 falls within the preset range to judge whether the length dimension of the workpiece 100 is qualified.

[0049] Furthermore, as Figures 3-4As shown, the first conveying component is preferably a first conveyor belt, and a driving device (not shown in the figure) is used to make the first conveyor belt convey the workpiece 100. Since the first conveyor belt is always running, in order to avoid the workpiece 100 rotating on the first conveyor belt under the combined action of the first conveyor belt and the driving cylinder 23 during the process of the dimension detection component measuring the length, resulting in production abnormalities. The detection mechanism further includes at least two first stopping cylinders 27, and the two first stopping cylinders 27 are arranged at intervals in the width direction of the frame 1. The first stopping cylinder 27 is arranged downstream of the dimension detection component, and the first stopping cylinder 27 can limit the forward conveyance of the workpiece 100 along the first conveying component. When performing dimension detection, the first stopping cylinder 27 rises to prevent the workpiece 100 from continuing to be conveyed forward, so that the workpiece 100 only moves in the width direction of the frame 1, avoiding the situation of production abnormalities. After the dimension detection is completed, the first stopping cylinder 27 descends, and the workpiece 100 can continue to be conveyed forward. As the prior art in this field, the structure of the first stopping cylinder 27 will not be elaborated here.

[0050] Optionally, as Figures 3-4 shown, the dimension detection component further includes a reverse pushing cylinder 26. The reverse pushing cylinder 26 is arranged on the other side of the frame 1, and the reverse pushing cylinder 26 is arranged opposite to the driving cylinder 23. The reverse pushing cylinder 26 is used to push the workpiece 100 to move towards the driving cylinder 23. After the dimension detection is completed, the driving cylinder 23 retracts. At this time, one end of the workpiece 100 away from the driving cylinder 23 still contacts the frame 1. To avoid friction between the two, the reverse pushing cylinder 26 is set to push the workpiece 100 towards the driving cylinder 23 after the dimension detection is completed, so that the workpiece 100 and the frame 1 are separated from contact to avoid friction.

[0051] Specifically, the first conveying component includes two first conveyor belts 41 arranged at intervals in the width direction of the frame 1, and the second conveying component includes two second conveyor belts 42 arranged at intervals in the width direction of the frame 1. The conveying directions of the first conveyor belt 41 and the second conveyor belt 42 are the same. The two first conveyor belts 41 and the two second conveyor belts 42 are arranged in a staggered manner, and at least part of the downstream of the first conveyor belt 41 coincides with at least part of the upstream of the second conveyor belt 42, so that the workpiece 100 can be conveyed from the first conveyor belt 41 to the second conveyor belt 42.

[0052] Please refer to Figures 5-7 shown, there are two second conveying components, and the two second conveying components are arranged oppositely inside the flipping frame 33, and the workpiece 100 selectively contacts one of the second conveying components. When the flipping motor 31 does not rotate or the angle at which the flipping motor 31 drives the flipping frame 33 to rotate is less than 90 degrees, the workpiece 100 contacts one of the conveying components; when the angle at which the flipping motor 31 drives the flipping frame 33 to rotate is greater than 90 degrees, the workpiece 100 contacts the other conveying component.

[0053] Specifically, the second conveying assembly also includes a conveying motor 43, a sprocket 44, a transmission shaft 45 and a pulley 46. The motor bracket 37 and the mounting seat 38 are also fixedly connected inside the flip frame 33. The conveying motor 43 is fixedly installed inside the flip frame 33 through the motor bracket 37. The pulley 46 is rotatably connected to the mounting seat 38. The second conveyor belt 42 is sleeved on the outside of the pulley 46, and the pulley 46 can drive the second conveyor belt 42 to move. A transmission shaft 45 is arranged between the two pulleys 46, and both ends of the transmission shaft 45 are fixedly connected to the two pulleys 46 to drive the pulleys 46 to rotate. The transmission shaft 45 is fixedly connected with a sprocket 44, and the output end of the conveying motor 43 is fixedly connected with the sprocket 44. The conveying motor 43 drives the transmission shaft 45 to rotate through a chain (not shown in the figure) and the sprocket 44. Further, as Figures 5-7 As shown, in order to prevent the workpiece 100 from slipping out of the inside of the flip frame 33 during the rotation of the flip frame 33 relative to the frame 1. Two groups of stoppers are also provided on the flip frame 33, and the two groups of stoppers are respectively arranged at the top and bottom of the flip frame 33. One group of stoppers is located in the downstream direction of the other group of stoppers. Each group of stoppers includes two second stop cylinders 39, and the two second stop cylinders 39 are arranged at intervals along the length direction of the flip frame 33. The second stop cylinders 39 can limit the workpiece 100 from being transported along the second conveying assembly. When the workpiece 100 enters the inside of the flip frame 33 and the flip motor 31 needs to drive the flip frame 33 to rotate, the second stop cylinder 39 is lifted to lock the workpiece 100 in the flip frame 33. After the flip frame 33 rotates, the second stop cylinder 39 is retracted to release the lock on the workpiece 100, and the workpiece 100 continues to be transported along the second conveying assembly.

[0054] Alternatively, if Figures 6-7 As shown, in order to ensure that the two sets of stoppers can accurately lock the workpiece 100, a position sensor 47 is also fixedly connected to the mounting seat 38, and the position sensor 47 is used to detect the position of the workpiece 100 inside the flip frame 33. When the workpiece 100 is located at a preset position inside the flip frame 33, the two sets of stoppers lock the workpiece 100 to ensure the accuracy of the locked position.

[0055] Alternatively, if Figures 2-3As shown in the figure, since the conveyor motor 43 and the position sensor 47 provided in the flipping frame 33 both need to be connected to cables for power supply or signal transmission, and the flipping frame 33 rotates relative to the frame 1, in order to prevent the cables from being broken or damaged during the rotation of the flipping frame 33, a drag chain 36 is also provided on the frame 1. An installation plate 32 is fixedly connected to the frame 1, and the flipping motor 31 is installed on the frame 1 through the installation plate 32. A fixed bracket 34 and an orbital bracket 35 are also provided on the frame 1, and the orbital bracket 35 straddles the installation plate 32 and is fixedly connected to the frame 1. One end of the drag chain 36 is fixedly connected to the fixed bracket 34, and the other end of the drag chain 36 is arranged inside the orbital bracket 35 and can move inside the orbital bracket 35. The cables are arranged inside the drag chain 36. When the flipping frame 33 rotates, the end of the drag chain 36 located inside the orbital bracket 35 rotates synchronously with the flipping frame 33, thereby effectively protecting the cables inside it.

[0056] Optionally, a receiving cart 51 is provided below the flipping frame 33, and the receiving cart 51 is used to receive unqualified workpieces 100. Wheels 512 are connected to the bottom of the receiving cart 51, so that when the workpieces 100 in the receiving cart 51 are full, the receiving cart 51 can be conveniently pushed out from below the flipping frame 33. At the same time, two gratings 52 are oppositely arranged, and two notches 511 are correspondingly arranged on both sides of the receiving cart 51. The two gratings 52 are in opposite light transmission through the two notches 511 to obtain the storage condition of the workpieces 100 in the receiving cart 51, so that the workpieces 100 in the receiving cart 51 can be disposed of in time when they are full.

[0057] The present invention provides a control method for a workpiece detection and sorting device, which is applied to the workpiece detection and sorting device in this embodiment. The control method for the workpiece detection and sorting device includes:

[0058] The detection mechanism detects the workpiece 100, the first conveyor component conveys the workpiece 100 to the second conveyor component, and the second conveyor component transports the workpiece 100 into the inside of the flipping frame 33;

[0059] If the detection result of the workpiece 100 is qualified, the flipping motor 31 drives the flipping frame 33 to rotate a first preset angle relative to the frame 1 from the initial position, otherwise the flipping motor 31 drives the flipping frame 33 to rotate a second preset angle relative to the frame 1 from the initial position;

[0060] The second conveyor component transports the workpiece 100 to the outside of the flipping frame 33, and the flipping motor 31 drives the flipping frame 33 to rotate to the initial position relative to the frame 1, and the above steps are repeated in a cycle to realize continuous detection and sorting of the workpiece 100.

[0061] Furthermore, the detection mechanism includes a hole detection component and a dimension detection component: the hole detection component is used to detect the positioning holes of the workpiece 100, and the dimension detection component is used to detect the dimensions of the workpiece 100. That is, the detection of the workpiece 100 by the detection mechanism includes: the hole detection component detects the positioning holes of the workpiece 100, and the dimension detection component detects the dimensions of the workpiece 100; only when the detection results of the positioning holes and the dimensions of the workpiece 100 are both qualified, the detection result of the workpiece 100 is qualified.

[0062] Specifically, the relevant principle of the hole detection component for detecting the positioning holes will not be elaborated here as it is prior art in the field. The method for the dimension detection component to detect the dimensions of the workpiece 100 includes:

[0063] The driving cylinder 23 extends, and the pushing plate 24 pushes the workpiece 100 to move along the width direction of the frame 1 until one side or end of the workpiece 100 away from the driving cylinder 23 abuts against the frame 1, and the displacement sensor 25 obtains the distance that the pushing plate 24 moves.

[0064] It is judged whether the distance that the pushing plate 24 moves is within a preset range. If so, the dimensions of the workpiece 100 are qualified; otherwise, the dimensions of the workpiece 100 are unqualified.

[0065] For the case where the length of the workpiece 100 needs to be measured, the length direction of the workpiece 100 is set to be the same as the width direction of the frame 1, so that the length of the workpiece 100 can be measured when one end of the workpiece 100 pushed by the pushing plate 24 away from the driving cylinder 23 abuts against the frame 1. Similarly, for the case where the width of the workpiece 100 needs to be measured, the width direction of the workpiece 100 is set to be the same as the width direction of the frame 1, so that the width of the workpiece 100 can be measured when one side of the workpiece 100 pushed by the pushing plate 24 away from the driving cylinder 23 abuts against the frame 1. Different placement methods of the workpiece 100 can be set according to actual needs, and no specific limitations are made here.

[0066] Further, after the workpiece 100 is detected, the flipping motor 31 drives the flipping frame 33 to rotate a preset angle according to the detection result. For unqualified workpieces 100, they need to be sorted into different areas or containers from qualified workpieces 100. Therefore, the first preset angle and the second preset angle are not equal. In this embodiment, a receiving cart 51 is provided below the flipping frame 33 to receive unqualified workpieces 100. Therefore, the second preset angle is preferably 90 degrees. After the flipping frame 33 rotates 90 degrees, the workpiece 100 changes from a horizontal state to a vertical state and thus falls into the receiving cart 51. The first preset angle can be any value other than 90 degrees. For example, when the detection result of the workpiece 100 is qualified, the workpiece 100 can continue to be conveyed forward along the original path. At this time, the flipping motor 31 does not work, and the workpiece 100 enters the next process after passing through the flipping frame 33, and the corresponding first preset angle is 0 degrees; or, the workpiece 100 can also be conveyed obliquely upward or obliquely downward at a certain angle, and the corresponding first preset angle can be greater than 0 degrees and less than 90 degrees, or greater than 90 degrees and less than 180 degrees; or, the workpiece 100 can also enter the next process after being flipped front and back, and the corresponding first preset angle is 180 degrees. In this embodiment, the qualified workpiece 100 needs to be flipped 180 degrees to enter the next process. Therefore, the first preset angle in this embodiment is preferably 180 degrees.

[0067] Further, after the second conveying component transports the workpiece 100 into the interior of the flipping frame 33, after the workpiece 100 enters the interior of the flipping frame 33, two sets of stoppers provided on the flipping frame 33 lock the workpiece 100 within the flipping frame 33. After the flipping motor 31 drives the flipping frame 33 to rotate the first preset angle or the second preset angle relative to the machine frame 1 from the initial position, the two sets of stoppers release the locking of the workpiece 100, and the workpiece 100 continues to be conveyed along the second conveying component to enter the next process or fall into the receiving cart 51.

[0068] When the workpiece 100 detection and sorting device of this embodiment is used to detect and sort the workpiece 100, the first stop cylinder 27 is first lifted to limit the workpiece 100 from continuing to be transported forward on the first conveyor belt 41. The hole position detection member 22 detects the positioning hole of the workpiece 100, and the driving cylinder 23 drives the push plate 24 to push the workpiece 100 to move, thereby detecting the length of the workpiece 100. Then the driving cylinder 23 retracts, and the reverse push cylinder 26 pushes the workpiece 100 to move in the opposite direction to prevent the workpiece 100 from contacting the frame 1. The first stop cylinder 27 retracts, and the workpiece 100 continues to be transported forward on the first conveyor belt 41 to the second conveyor belt 42. The second conveyor belt 42 transports the workpiece 100 to the inside of the flip frame 33 until the position sensor 47 detects that the workpiece 100 is in place, and the second stop cylinder 39 is lifted to lock the workpiece 100 to the inside of the flip frame 33. The flip motor 31 drives the flip frame 33 to rotate from the initial position according to the detection result of the workpiece 100. When the positioning hole and the length of the workpiece 100 are qualified, the flip motor 31 drives the flip frame 33 to rotate 180 degrees from the initial position; when the positioning hole and / or the length of the workpiece 100 are unqualified, the flip motor 31 drives the flip frame 33 to rotate 90 degrees from the initial position. The second stop cylinder 39 retracts to release the lock on the workpiece 100, and the workpiece 100 enters the next process or falls into the storage vehicle 51. The flip motor 31 reverses and drives the flip frame 33 to rotate to the initial position relative to the frame 1. When the grating 52 recognizes that the workpiece 100 in the storage vehicle 51 is full, a prompt message such as an audible and visual alarm is issued, so that the workpiece 100 in the storage vehicle 51 can be disposed of in time.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Workpiece detection and sorting device, characterized in that: include: Rack (1); A detection mechanism, the detection mechanism is connected to the frame (1), and the detection mechanism is used to detect the workpiece (100); A conveying mechanism, the conveying mechanism comprising a first conveying assembly and a second conveying assembly, the first conveying assembly being located below the detection mechanism, the first conveying assembly and the second conveying assembly being both used for conveying the workpiece (100), the first conveying assembly being capable of conveying the workpiece (100) to the second conveying assembly, the first conveying assembly comprising two first conveying belts (41) arranged at intervals along the width direction of the frame (1), the second conveying assembly comprising two second conveying belts (42) arranged at intervals along the width direction of the frame (1), and the conveying directions of the first conveying belt (41) and the second conveying belt (42) being the same; The distribution mechanism comprises a flip frame (33) and a flip motor (31), the second conveying assembly is provided in two, the two second conveying assemblies are arranged relatively inside the flip frame (33), the workpiece (100) selectively contacts with one of the second conveying assemblies, and the flip frame (33) is also provided with two groups of stoppers, the two groups of stoppers are respectively arranged at the top and bottom of the flip frame (33), one group of the stoppers is located in the downstream direction of the other group of the stoppers, and each group of the stoppers comprises two second Two stop cylinders (39), the two second stop cylinders (39) are arranged at intervals along the length direction of the flip frame (33), the second stop cylinders (39) can limit the workpiece (100) from being conveyed along the second conveying assembly, the flip motor (31) is installed on the frame (1), the flip motor (31) is connected to the flip frame (33), and the flip motor (31) can drive the flip frame (33) to rotate at a preset angle relative to the frame (1) according to the detection result of the detection mechanism on the workpiece (100).

2. The workpiece detection and sorting device according to claim 1, characterized in that: The detection mechanism includes a hole detection component and a size detection component; The hole detection assembly comprises a door-shaped bracket (21) and a hole position detection member (22); the door-shaped bracket (21) is fixedly connected to the frame (1); the door-shaped bracket (21) is arranged along the width direction of the frame (1); the hole position detection member (22) is fixedly connected to the door-shaped bracket (21); and the hole position detection member (22) is used to detect the positioning hole of the workpiece (100); The size detection component comprises a driving cylinder (23) and a displacement sensor (25) arranged on one side of the frame (1); the output end of the driving cylinder (23) is connected to a push plate (24); the driving cylinder (23) pushes the workpiece (100) to move along the width direction of the frame (1) via the push plate (24); and the displacement sensor (25) is used to measure the distance moved by the push plate (24).

3. The workpiece detection and sorting device according to claim 2, characterized in that: The size detection component also includes a reverse thrust cylinder (26), which is arranged on the other side of the frame (1), and is arranged opposite to the driving cylinder (23), and is used to push the workpiece (100) to move toward the driving cylinder (23).

4. The workpiece detection and sorting device according to claim 2, characterized in that: The detection mechanism further comprises at least two first stop cylinders (27), the two first stop cylinders (27) being arranged at intervals along the width direction of the frame (1), the first stop cylinders (27) being arranged downstream of the size detection component, and the first stop cylinders (27) being capable of limiting the workpiece (100) from being conveyed forward along the first conveying component.

5. A control method for a workpiece detection and sorting device, characterized in that: Applicable to the workpiece (100) detection and sorting device according to any one of claims 1 to 4, the control method of the workpiece (100) detection and sorting device comprises: The detection mechanism detects the workpiece (100), the first conveying component conveys the workpiece (100) to the second conveying component, and the second conveying component transports the workpiece (100) to the inside of the turning frame (33); If the inspection result of the workpiece (100) is qualified, the flip motor (31) drives the flip frame (33) to rotate from the initial position to a first preset angle relative to the frame (1); otherwise, the flip motor (31) drives the flip frame (33) to rotate from the initial position to a second preset angle relative to the frame (1); The second conveying assembly transports the workpiece (100) to the outside of the flip frame (33), and the flip motor (31) drives the flip frame (33) to rotate to an initial position relative to the frame (1).

6. The control method of the workpiece detection and sorting device according to claim 5, characterized in that: The detection mechanism comprises a hole detection component and a size detection component, the hole detection component is used to detect the positioning hole of the workpiece (100), the size detection component comprises a driving cylinder (23) and a displacement sensor (25) arranged on one side of the frame (1), the output end of the driving cylinder (23) is connected to a push plate (24), the driving cylinder (23) pushes the workpiece (100) to move along the width direction of the frame (1) through the push plate (24), and the displacement sensor (25) is used to measure the distance moved by the push plate (24); The detection mechanism detects the workpiece (100) including: the hole detection component detects the positioning hole of the workpiece (100), and the size detection component detects the size of the workpiece (100); Only when the detection result of the positioning hole and the detection result of the size of the workpiece (100) are both qualified, the detection result of the workpiece (100) is qualified.

7. The control method of the workpiece detection and sorting device according to claim 6, characterized in that: The method for the size detection component to detect the size of the workpiece (100) comprises: The driving cylinder (23) extends, and the pushing plate (24) pushes the workpiece (100) to move along the width direction of the frame (1) until one side or one end of the workpiece (100) away from the driving cylinder (23) abuts against the frame (1), and the displacement sensor (25) obtains the distance moved by the pushing plate (24); It is determined whether the distance moved by the push plate (24) is within a preset range; if so, the size of the workpiece (100) is qualified; otherwise, the size of the workpiece (100) is unqualified.

8. The control method of the workpiece detection and sorting device according to any one of claims 5 to 7, characterized in that: The flip frame (33) is also provided with two groups of stoppers, which are respectively arranged at the top and bottom of the flip frame (33), wherein one group of the stoppers is located in the downstream direction of the other group of the stoppers, and the two groups of the stoppers can lock the workpiece (100) in the flip frame (33); the control method of the workpiece (100) detection and distribution device also includes: After the second conveying assembly transports the workpiece (100) to the interior of the turning frame (33), the two sets of stoppers lock the workpiece (100) in the turning frame (33); After the flip motor (31) drives the flip frame (33) to rotate from an initial position to a first preset angle or a second preset angle relative to the frame (1), the two groups of stoppers release the lock on the workpiece (100), and the workpiece (100) continues to be conveyed along the second conveying assembly.

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