Carrier positioning detection stage and detection method thereof

Abstract

The present application aims to provide a precision slope matching reasonable, suitable for small products, can cover the test before and after the risk of being hit by a carrier positioning detection platform and its detection method. The carrier positioning detection platform comprises a support assembly, a pressing assembly and a drawer carrier assembly, the support assembly comprises an upper support plate and a lower support plate, the outer two groups of linear bearings are provided with a pair of laser modules at the lower end, and the pair of laser modules are inductively matched with a plurality of battery protection plates on the carrier; the detection method comprises the following steps: ① the carrier is placed on the drawer module; ② the carrier enters the pressing position; ③ the first laser is inductively matched with the upper surface of the carrier; ④ two groups of corresponding second lasers are respectively inductively matched with a plurality of laser detection grooves; ⑤ the needle detection; ⑥ the photoelectric sensor is inductively matched with the carrier; ⑦ two groups of corresponding second lasers are respectively inductively matched with a plurality of laser detection grooves. The present application is applied to the technical field of carrier detection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of carrier detection, and particularly relates to a carrier positioning detection platform and a detection method thereof. BACKGROUND

[0002] With the increasing demand for intelligentization in the manufacturing industry, the production of products is becoming more and more efficient. However, in the process of high-speed production, products need to be processed, transferred, assembled and factory-detected among various machine stations. In each project, the posture of the product and the placement state of the carrier are required to be detected. Therefore, a visual detection device or a limiting device is arranged before the product or the carrier enters the operating position of the machine to ensure that the product entering the operating position maintains the best placement position and angle. However, for the production machine of small products, the number of products arranged on the carrier is large, and the size of the products is small. When the carrier enters the operating position, the accuracy of the visual detection device cannot be guaranteed, and there is a detection blind area. After the machine test is completed, the state is not detected, and only the state before the test is detected. The detection logic is not rigorous. When there is an abnormal information when the carrier is released, no alarm is given, and the upper computer does not receive the signal, which increases the risk of machine collision of the mechanical hand. When there is an abnormality after the machine test, the traditional visual detection device and detection method can easily cause the product or the carrier to be pressed, popped up or warped, which can cause the mechanical hand to be positioned inaccurately and cause the machine to be collided, resulting in failure of the production line and the need for maintenance, reduction of the production efficiency of the enterprise and increase of the cost. If a carrier positioning detection platform and a detection method thereof with reasonable precision slope matching, suitable for small products and capable of covering the test before and after to reduce the risk of machine collision are designed, the above problems can be solved. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a carrier positioning detection platform and a detection method thereof with reasonable precision slope matching, suitable for small products and capable of covering the test before and after to reduce the risk of machine collision.

[0004] The technical solution adopted by the present application is: the carrier positioning detection platform comprises a supporting assembly, a pressing assembly and a drawer carrier assembly. The supporting assembly comprises an upper supporting plate and a lower supporting plate. The upper supporting plate is connected to the lower supporting plate through a plurality of linear bearings. The pressing assembly is connected to the movable ends of the linear bearings. The drawer carrier assembly comprises a drawer module and a carrier. The pressing assembly and the lower needle plate on the lower supporting plate are matched with the carrier on the drawer module. The lower ends of the two groups of linear bearings on the outer side are provided with a pair of laser modules. The pair of laser modules are inductively matched with a plurality of battery protection plates on the carrier.

[0005] Further, the upper end face of the carrier is provided with a plurality of product profiling grooves, a plurality of the battery protection plates are limited by the plurality of product profiling grooves, and the two sides of the upper end face of the carrier are provided with a plurality of laser detection grooves connected and conducted with the plurality of product profiling grooves.

[0006] Further, the pair of laser modules comprises a fixed support, a first laser, and two groups of second lasers, the fixed support is connected with the lower end of the linear bearing, the fixed support is provided with a plurality of height adjusters, the first laser and the two groups of second lasers are connected with the fixed support through the plurality of height adjusters.

[0007] Further, the upper end face of the carrier is provided with twelve groups of product detection positions, each group of product detection positions is provided with two groups of product profiling grooves, and seven groups of laser detection grooves are connected and conducted with a plurality of connector detection positions on the plurality of product profiling grooves.

[0008] Further, the first laser is arranged on the upper surface of the carrier, the two groups of first lasers are mutually opposite and are inductively matched with the battery protection plate connector end on the plurality of product detection positions.

[0009] Further, one group of corresponding second lasers detects the posture of the plurality of battery protection plate chip ends through a plurality of laser detection grooves, and another group of corresponding second lasers detects the high posture of the plurality of battery protection plate chip ends through a plurality of laser detection grooves.

[0010] Further, the lower end of the two groups of linear bearings on the inner side is provided with a photoelectric sensor, and the photoelectric sensor is matched with the carrier.

[0011] Further, the upper end of the drawer module is provided with a plurality of positioning guide shafts, the carrier is provided with a plurality of positioning guide sleeves, and the plurality of positioning guide sleeves are matched with the plurality of positioning guide shafts.

[0012] Further, the upper end face of the carrier is further provided with a foolproof mark.

[0013] Further, the detection method of the carrier positioning detection platform comprises the following steps:

[0014] ① The mechanical hand places the carrier to be detected at the positioning position of the drawer module;

[0015] ② The drawer module pushes the carrier into the inside of the support assembly;

[0016] ③The two groups of first lasers scan the upper end of the carrier. When the carrier and the plurality of battery protection plates are placed in a normal state, the two groups of first lasers are mutually opposite, receive a high-level signal, and the carrier passes smoothly. When the carrier or the battery protection plates are placed in an abnormal state, the light path of the two groups of first lasers is blocked by the carrier or the connector end of the battery protection plate, receives a low-level signal, and the drawer module stops moving;

[0017] ④The two groups of second lasers for middle posture detection and the two groups of second lasers for high posture detection pass through the seven groups of laser detection slots in turn. During the passing process, the corresponding two groups of second lasers are mutually opposite or are blocked by the carrier. The received signal is: high-low-high-low-high-low-high-low-high-low-high-low-high-low-high-low. The number of rising edges of the signal is seven. When the height of the raised end of the battery protection plate chip exceeds the scanning height of the second laser, the light path of the second laser is blocked, and the number of rising edges of the signal increases. When the actual received signal is different from the above signal, the battery protection plate is placed in an abnormal state.

[0018] ⑤After the detection of the opposite laser module is passed, the drawer module pushes the carrier to between the lower pressing assembly and the lower needle plate, and performs lower pressing and power-on detection.

[0019] ⑥After the detection is completed, the lower pressing assembly rises, and the plurality of photoelectric sensors detect the ejection and raising of the carrier. When the carrier is placed normally, the drawer module pushes the carrier out. When the carrier is ejected and raised, the drawer module stops moving.

[0020] ⑦During the pushing out of the carrier, the corresponding two groups of second lasers are mutually opposite or are blocked by the carrier. The received signal is: low-high-low-high-low-high-low-high-low-high-low-high-low-high-low-high. The number of rising edges of the signal is eight. When the height of the raised end of the battery protection plate chip exceeds the scanning height of the second laser, the light path of the second laser is blocked, and the number of rising edges of the signal increases. When the actual received signal is different from the above signal, the battery protection plate is placed in an abnormal state. The two groups of first lasers detect whether the carrier is placed normally. When the carrier is placed normally, the carrier is pushed out, and the mechanical hand takes out the carrier.

[0021] The beneficial effects of the present application are: the detection mode of the laser emission sensor: the pair of laser modules is installed above the carrier, the optical path distance from the tray surface is 1.5mm, and the optical path distance from the carrier surface height can be adjusted according to the actual use. The first laser and the second laser both use NPN type sensors, and in the normal state, the control board will receive a continuous high level signal, if the product protrudes from the carrier surface by more than 1.5mm, it will block the light path of the laser, so that the control board will receive a continuous low level signal, and the height of the level is used to determine whether the product exceeds the carrier surface. The depth of the carrier groove is 3mm, and two groups of lasers are arranged in the groove, which are respectively 2mm detection of medium posture and 3mm detection of high posture. The detection height is adjusted according to the actual groove depth of the carrier plate, which has strong applicability, and the two groups of lasers inside detect the part in the laser detection groove, mainly to detect whether the product chip end is warped; the outermost laser is a sensor for detecting the carrier surface, which detects whether the product connector part is warped, and through real-time detection of the signal of the three groups of lasers and threshold comparison, the product and the public security bureau can be accurately identified whether they are placed normally. On the existing hardware structure, detection process is added in the process of entering and leaving the machine, the detection logic is optimized, and the risk of machine collision is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is another state of the perspective view of the present application;

[0024] Figure 3 is Figure 2 enlarged view of A;

[0025] Figure 4 is a perspective view of the carrier abnormal state of the present application;

[0026] Figure 5 is a perspective view of the carrier laser scanning surface;

[0027] Figure 6 is a perspective view of the carrier laser scanning the laser detection groove;

[0028] Figure 7 is a top view of the carrier. DETAILED DESCRIPTION

[0029] As Figures 1 to 7As shown, in this embodiment, a carrier positioning detection platform includes a support assembly 1, a pressing assembly 2, and a drawer carrier assembly 3, the support assembly 1 includes an upper support plate 4 and a lower support plate 5, the upper support plate 4 is connected with the lower support plate 5 through a plurality of linear bearings 6, the pressing assembly 2 is connected with the movable end of the linear bearings 6, the drawer carrier assembly 3 includes a drawer module 7 and a carrier 8, the pressing assembly 2 and the lower needle plate 9 on the lower support plate 5 are matched with the carrier 8 on the drawer module 7, the lower end of the two groups of linear bearings 6 on the outside is provided with a pair of laser modules 10, and the pair of laser modules 10 are inductively matched with a plurality of battery protection plates 12 on the carrier 8. As can be seen, the external robot clamps the full carrier 8 to prevent it from being placed in the drawer module 7, the power module of the drawer module 7 drives the carrier 8 to enter the inside of the support assembly 1, the pair of laser modules 10 inductively match the carrier 8 and the plurality of battery protection plates 12 on the carrier 8, the number of signals detected by the carrier under normal circumstances is taken as a threshold value, the signals of the pair of laser modules 10 are compared with the threshold value, whether the positions of the plurality of battery protection plates 12 are normally placed is obtained, the carrier 8 is detected again when it is extended, the detection efficiency is higher, and the battery protection plates 12 and the carrier 8 can be prevented from being crushed, the detection logic is optimized, and the risk of the platform being hit by a machine is reduced.

[0030] As Figures 5 to 7 shown, in this embodiment, the upper end surface of the carrier 8 is provided with a plurality of product profiling grooves 13, a plurality of battery protection plates 12 are limited by a plurality of product profiling grooves 13, and the upper end surface of the carrier 8 is provided with seven groups of laser detection grooves 14 on both sides, a plurality of laser detection grooves 14 are connected with a plurality of product profiling grooves 13 for conduction. As can be seen, the depth of the laser detection groove 14 on the carrier 8 is 3mm, the number and depth of the grooves can be adjusted according to the number of products, and the applicability is strong.

[0031] As Figure 2 and Figure 3As shown, in this embodiment, the through-beam laser module 10 includes a fixed bracket 15, a first laser 16, and two sets of second lasers 17. The fixed bracket 15 is connected to the lower end of the linear bearing 6. The fixed bracket 15 is equipped with several height adjusters 18. The first laser 16 and the two sets of second lasers 17 are respectively connected to the fixed bracket 15 through several height adjusters 18. Therefore, the three sets of lasers operate on the same principle, differing only in their installation positions. The two innermost sets detect the laser detection slots 14, primarily checking for warping of the chip end of the battery protection board 12. The outermost sets are sensors on the surface of the carrier 8, detecting for warping of the connector portion of the battery protection board 12. By real-time monitoring of the signal status of the three sets of lasers and comparing it with a threshold, the threshold is the actual number of slots in the laser detection slots 14 of the carrier.

[0032] like Figures 5 to 7 As shown, in this embodiment, the upper surface of the carrier 8 is provided with twelve sets of product detection positions. Each set of product detection positions is provided with two sets of product contouring grooves 13. Several laser detection grooves 14 are respectively connected and conductive to the connector detection positions on several sets of product contouring grooves 13. It can be seen that each detection position is provided with two sets of product contouring grooves 13 in opposite directions, which can accommodate a total of 24 sets of battery protection boards 12. The laser detection grooves 14 on both sides detect the chip ends of two sets of battery protection boards 12 respectively, and the five sets of laser detection grooves 14 in the middle detect the chip ends of four sets of battery protection boards 12 respectively. When a chip end is found to be lifted, it can be quickly positioned to the battery protection boards 12 in the same row.

[0033] like Figure 5 As shown, in this embodiment, the first laser 16 is disposed on the upper surface of the carrier 8. Two sets of the first lasers 16 emit light towards each other and engage with the connector ends of the battery protection board 12 at several product detection positions. Therefore, by mounting the opposing laser module 10 above the carrier 8, with the optical path 1.5mm from the upper surface of the carrier 8, the height of the optical path from the surface of the carrier 8 can be adjusted according to actual usage. Under normal conditions, the control board will receive a continuous high-level signal. If the carrier 8 pops up or the connector end of the battery protection board 12 protrudes more than 1.5mm from the carrier surface, it will block the optical path of the first laser 16, causing the control board to receive a continuous low-level signal. The high or low level of the signal determines whether the product exceeds the surface of the carrier 8.

[0034] like Figure 6As shown, in this embodiment, one set of corresponding second lasers 17 detects the middle posture of the chip end of the battery protection plate 12 through the laser detection groove 14, and another set of corresponding second lasers 17 detects the high posture of the chip end of the battery protection plate 12 through the laser detection groove 14. As can be seen, the depth of the laser detection groove 14 on the carrier 8 is 3mm, and two sets of lasers are arranged in the groove, which respectively detect the middle posture of 2mm and the high posture of 3mm. The detection height is adjusted according to the actual groove depth of the carrier plate, which has strong applicability. The two sets of lasers inside detect the part in the laser detection groove, mainly detect whether the product chip end is warped, and there are 7 detection grooves. When the carrier 8 enters the machine from the outside to the inside, the signals received by the two sets of corresponding second lasers 17 in the groove are all: high-low-high-low-high-low-high-low-high-low-high-low-high-low-high-low, and the number of rising edges of the signal is 7. When the carrier 8 is released and walks from the inside to the outside, the received signal is all: low-high-low-high-low-high-low-high-low-high-low-high-low-high-low-high, and the number of rising edges of the signal is 8. The number of signals detected under normal circumstances is taken as a threshold value. When the carrier moves, the corresponding situation is matched, so as to determine whether the placement state of the battery protection plate 12 in the product profiling groove 13 is normal.

[0035] As shown in Figure 1 and Figure 2 As shown, in this embodiment, the lower end of the two sets of linear bearings 6 on the inner side is provided with a photoelectric sensor 19, which cooperates with the carrier 8. As can be seen, after the test is completed, the host computer will give an instruction to release the carrier 8. During the withdrawal process of the pressing assembly 2, the detection function of the photoelectric sensor 19 is also started. When the pressing assembly 2 is withdrawn to the position, the situation is returned to the host computer. When the carrier 8 is normally released, the robot is instructed to take away the carrier 8. If the carrier 8 is abnormal, an alarm is given to notify the operator to handle the abnormality. During the release process of the carrier 8, the carrier 8 may pop up due to vibration and other factors. The photoelectric sensor 19 is started to detect during release. The host computer will send an error instruction to the system for processing after the pressing assembly 2 is lifted to the position. This can avoid the robot from colliding with the machine due to improper clamping, causing damage to the machine.

[0036] As shown in Figure 4 and Figure 5As shown in the embodiment, the drawer module 7 is provided with a plurality of positioning guide shafts 20 at the upper end, and the carrier 8 is provided with a plurality of positioning guide sleeves 21, and the plurality of positioning guide sleeves 21 are matched with the plurality of positioning guide shafts 20. Thus, when the external mechanical arm puts the carrier 8 on the drawer module 7, the plurality of positioning guide sleeves 21 and the plurality of positioning guide shafts 20 can ensure that the carrier 8 does not deviate.

[0037] As shown in the embodiment, the upper end surface of the carrier 8 is further provided with a foolproof mark 22. Thus, the foolproof mark 22 can prevent the carrier 8 from being placed in the wrong direction, which can prevent the product from being crushed due to errors. Figures 5 to 7

[0038] In the embodiment, the detection method of the carrier positioning detection platform comprises the following steps:

[0039] ① The mechanical arm puts the carrier 8 to be detected at the positioning position of the drawer module 7;

[0040] ② The drawer module 7 pushes the carrier 8 into the inside of the support assembly 1;

[0041] ③ Two groups of first lasers 16 scan the upper end of the carrier 8. When the carrier 8 and the plurality of battery protection plates 12 are placed normally, the two groups of first lasers 16 are mutually opposite, receive a high-level signal, and the carrier 8 passes smoothly. When the carrier 8 or the battery protection plate 12 is placed abnormally, the light path of the two groups of first lasers 16 is blocked by the carrier 8 or the connector end of the battery protection plate 12, receives a low-level signal, and the drawer module 7 stops moving;

[0042] ④ Two groups of second lasers 17 for middle posture detection and two groups of second lasers 17 for high posture detection pass through the seven groups of laser detection grooves 14 in turn. In the process, the corresponding two groups of second lasers 17 are mutually opposite or are blocked by the carrier 8, and the received signal is: high-low-high-low-high-low-high-low-high-low-high-low-high-low-high-low. The number of rising edges of the signal is seven. When the height of the chip end of the battery protection plate 12 is higher than the scanning height of the second laser 17, the light path of the second laser 17 is blocked, and the number of rising edges of the signal increases. When the actual received signal is different from the above signal, the battery protection plate 12 is placed abnormally;

[0043] ⑤ After the detection of the opposite laser module 10 is passed, the drawer module 7 pushes the carrier 8 between the lower pressing assembly 2 and the lower needle plate 9, and performs lower pressing and power-on detection;

[0044] ⑥ After the detection is completed, the lower pressing assembly 2 rises, and a plurality of photoelectric sensors 19 detect the ejection and lifting of the carrier 8. When the carrier 8 is placed normally, the drawer module 7 pushes out the carrier 8. When the carrier 8 is ejected and lifted, the drawer module 7 stops moving; ​

[0045] During the pushing-out process of the carrier 8, the corresponding two groups of second lasers 17 are blocked by each other or the carrier 8, and the received signal is: low-high-low-high-low-high-low-high-low-high-low-high-low-high-low-high, and the number of signal rising edges is eight. When the height of the chip end of the battery protection plate 12 is higher than the scanning height of the second laser 17, the light path of the second laser 17 is blocked, and the number of signal rising edges increases. When the actual received signal is different from the above signal, the placement state of the battery protection plate 12 is abnormal. The two groups of first lasers 16 detect whether the carrier 8 is placed normally, and the carrier 8 is pushed out when the placement state is normal. The robot takes out the carrier 8.

[0046] Although the embodiments of the present application are described in actual schemes, they do not constitute a limitation on the meaning of the present application, and modifications of the embodiments thereof and combinations with other schemes according to the present specification are obvious to those skilled in the art.

Claims

1. A carrier positioning detection stage comprising a support assembly (1), a push-down assembly (2) and a drawer carrier assembly (3), characterized in that: The support assembly (1) comprises an upper support plate (4) and a lower support plate (5), the upper support plate (4) is connected with the lower support plate (5) through a plurality of linear bearings (6), the lower pressing assembly (2) is connected with the movable end of the linear bearings (6), the drawer carrier assembly (3) comprises a drawer module (7) and a carrier (8), the lower pressing assembly (2) and the lower needle plate (9) on the lower support plate (5) are matched with the carrier (8) on the drawer module (7), the lower ends of the two groups of linear bearings (6) on the outer side are provided with a pair of laser modules (10), the pair of laser modules (10) are inductively matched with a plurality of battery protection plates (12) on the carrier (8); a plurality of product profiling grooves (13) are arranged on the upper end surface of the carrier (8), a plurality of battery protection plates (12) are limited by a plurality of product profiling grooves (13), a plurality of laser detection grooves (14) are arranged on the both sides of the upper end surface of the carrier (8), and a plurality of laser detection grooves (14) are connected and conducted with a plurality of product profiling grooves (13); the pair of laser modules (10) comprise a fixed support (15), a first laser (16) and two groups of second lasers (17), the fixed support (15) is connected with the lower end of the linear bearing (6), the fixed support (15) is provided with a plurality of height adjusters (18), the first laser (16) and the two groups of second lasers (17) are connected with the fixed support (15) through a plurality of height adjusters (18) respectively; twelve groups of product detection positions are arranged on the upper end surface of the carrier (8), each group of product detection positions is provided with two groups of product profiling grooves (13), seven groups of laser detection grooves (14) are connected and conducted with connector detection positions on a plurality of product profiling grooves (13) respectively; the first laser (16) is arranged on the upper surface of the carrier (8), two groups of first lasers (16) are mutually paired and inductively matched with connector ends of the battery protection plates (12) on a plurality of product detection positions; one group of corresponding second lasers (17) perform middle posture detection on chip ends of a plurality of battery protection plates (12) through a plurality of laser detection grooves (14), and another group of corresponding second lasers (17) perform high posture detection on chip ends of a plurality of battery protection plates (12) through a plurality of laser detection grooves (14).

2. The stage according to claim 1, wherein: The lower ends of the two groups of linear bearings (6) on the inner side are provided with photoelectric sensors (19), and the photoelectric sensors (19) are matched with the carrier (8).

3. The stage according to claim 2, wherein: A plurality of positioning guide shafts (20) are arranged on the upper end of the drawer module (7), and the carrier (8) is provided with a plurality of positioning guide sleeves (21), and a plurality of positioning guide sleeves (21) are matched with a plurality of positioning guide shafts (20).

4. The stage according to claim 3, wherein: The upper end surface of the carrier (8) is further provided with a foolproof mark (22).

5. A method of detecting a position of a carrier on a detection stage as claimed in claim 4, wherein: It comprises the following steps: ① The robot places the carrier (8) to be detected at the positioning position of the drawer module (7); ② The drawer module (7) drives the carrier (8) to enter the inside of the support assembly (1); ③Two groups of first laser (16) scan the upper end of the carrier (8), when the carrier (8) and several battery protection plate (12) placed state is normal, two groups of first laser (16) mutual shot, receive high level signal, the carrier (8) smoothly through, when the carrier (8) or battery protection plate (12) placed state is not normal, two groups of first laser (16) light path is blocked by the carrier (8) or the battery protection plate (12) connector end, receive low level signal, drawer module (7) stop moving; ④Two groups of second laser (17) and high posture detection of two groups of second laser (17) in turn through seven groups of laser detection slot (14), in the process, the corresponding two groups of second laser (17) are blocked by the carrier (8), the received signal is: high-low-high-low-high-low-high-low-high-low-high-low-high-low-high-low, the number of signal rising edge is seven, when the battery protection plate (12) chip end is raised to the height of the second laser (17) scanning height, the second laser (17) light path is blocked, the number of signal rising edge increases, when the actual received signal is different from the above signal, the battery protection plate (12) placed state is not normal; ⑤When the detection of the shot laser module (10) is passed, the drawer module (7) pushes the carrier (8) to the lower pressure assembly (2) and the lower needle plate (9), and carries out the lower pressure power supply detection; ⑥After the detection is completed, the lower pressure assembly (2) rises, several photoelectric sensors (19) detect the pop-up and lifting of the carrier (8), when the carrier (8) is placed normally, the drawer module (7) pushes out the carrier (8), when the carrier (8) is detected to pop up and lift, the drawer module (7) stops moving; ⑦In the process of pushing out the carrier (8), the corresponding two groups of second laser (17) are blocked by the carrier (8), the received signal is: low-high-low-high-low-high-low-high-low-high-low-high-low-high-low-high, the number of signal rising edge is eight, when the battery protection plate (12) chip end is raised to the height of the second laser (17) scanning height, the second laser (17) light path is blocked, the number of signal rising edge increases, when the actual received signal is different from the above signal, the battery protection plate (12) placed state is not normal, two groups of first laser (16) detect whether the carrier (8) is placed normally, the carrier (8) is pushed out, the mechanical hand takes out the carrier (8).

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