Circuit board detection equipment and circuit board production line body

Abstract

The invention discloses circuit board detection equipment and a circuit board production line body. The circuit board detection equipment comprises a first conveying device, a second conveying device and a detection station, the starting point end of the first conveying device is connected with a discharge hole of the front-end equipment and is used for conveying an undetected circuit board; the terminal end of the second conveying device is connected with a feeding port of rear-end equipment, and the second conveying device is used for conveying circuit boards which are tested to be qualified. The detection station comprises a first line detection group, a second line detection group and a transfer mechanism, and the first line detection group, the second line detection group, the first conveying device and the second conveying device are located in the grabbing range of the transfer mechanism. And the transfer mechanism is used for conveying the circuit boards on the first conveying device into the first row of detection groups and the second row of detection groups for testing, and conveying the qualified circuit boards to the second conveying device. According to the technical scheme, the detection process can be simplified, and the detection efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of circuit board equipment, and in particular to a circuit board detection device and a circuit board production line. Background Art

[0002] After the circuit boards are produced on the production equipment, the staff will collect the completed circuit boards and then move them to the testing fixture. Then, the staff will put the collected circuit boards into the test fixture one by one, and then press down the handle to make the tin points of the circuit boards contact with the probes of the fixture, so as to use the instrument for testing.

[0003] Obviously, in the above method, users need to collect materials in one go after the circuit board production is completed, and they also need to feed and collect materials one by one during testing. There is also a handling operation in the middle, which is extremely cumbersome and has low testing efficiency. Summary of the invention

[0004] The purpose of this application is to provide a circuit board detection device and a circuit board production line, which can simplify the detection process and improve the detection efficiency.

[0005] To achieve the above-mentioned objectives, the present application provides, on the one hand, a circuit board detection equipment, which includes a first conveying device, a second conveying device and a detection station; the starting end of the first conveying device is connected with the discharge port of the front-end device, for conveying uninspected circuit boards; the terminal end of the second conveying device is connected with the feed port of the back-end device, for conveying circuit boards that have passed the test; the detection station includes a first row detection group, a second row detection group and a transfer mechanism, the first row detection group, the second row detection group, the first conveying device and the second conveying device are located within the grabbing range of the transfer mechanism, and the transfer mechanism is used to send the circuit boards on the first conveying device into the first row detection group and the second row detection group for testing, and send the circuit boards that have passed the test to the second conveying device.

[0006] To achieve the above-mentioned purpose, on the other hand, the present application also provides a circuit board production line, which includes a front-end device, a back-end device and the above-mentioned circuit board detection equipment; the front-end device is used to produce circuit boards, and conveys the produced circuit boards to the circuit board detection equipment through a first conveying device of the circuit board detection equipment; the circuit board detection equipment is used to detect circuit boards, and conveys the tested circuit boards to the back-end device through a second conveying device of the circuit board detection equipment.

[0007] It can be seen that the technical solution provided by the present application is that the circuit board detection equipment includes a first conveying device, a second conveying device and a detection station. The circuit boards produced by the front-end equipment can be directly conveyed to the detection station for testing through the first conveying device, and the qualified circuit boards can be directly sent to the back-end equipment through the second conveying device. In this way, the material collection, discharge and handling operations between the production process, the detection process and the back-end process can be saved, the detection process can be simplified, and the detection efficiency can be improved.

[0008] At the same time, the first row inspection group, the second row inspection group, the first conveying device and the second conveying device are located within the grasping range of the transfer mechanism, so that one transfer mechanism can realize the loading and unloading operations of the circuit boards on the first row inspection group and the second row inspection group, thereby reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 This is a schematic diagram of the isometric structure of a circuit board detection device in an embodiment provided by the present application;

[0011] Figure 2 This is a partial structural isometric diagram of a circuit board detection device in an embodiment provided by the present application;

[0012] Figure 3 It is a schematic top view of a part of the structure of a circuit board detection device in one embodiment provided by the present application;

[0013] Figure 4 is an isometric schematic diagram of a partial structure of a circuit board detection device in an embodiment provided by the present application;

[0014] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0015] Figure 6 is an axonometric schematic diagram of a test cabinet in an embodiment provided by the present application;

[0016] Figure 7 It is a structural schematic diagram of a circuit board production line in an embodiment provided in the present application. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in the present application to represent spatial relative positions are used to describe the relationship between a unit or feature as shown in the accompanying drawings relative to another unit or feature for the purpose of convenience of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figure. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptors used herein are interpreted accordingly.

[0018] In addition, the terms "installed", "set", "provided with", "connected", "slidingly connected", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] Circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a provider of circuit connections for electronic components. Because it is made using electronic printing technology, it is called a "printed" circuit board. Before the circuit board leaves the factory, it needs to undergo rigorous electrical testing to ensure that the circuit board is intact or to eliminate faults.

[0020] After the existing circuit boards are produced on the production equipment, the staff will collect the completed circuit boards and then move them to the testing fixture. Then, the staff will put the collected circuit boards into the test fixture one by one, and then press down the handle to make the tin points of the circuit boards contact with the probes of the fixture, so as to use the instrument for testing. Obviously, in the above method, after the production is completed, the materials need to be collected in a centralized manner, and the materials need to be fed one by one and collected in a centralized manner during the test. There is also a handling operation in the middle, which is extremely cumbersome, the detection efficiency is low, and the labor intensity of the staff is high, and the cost is high.

[0021] In addition, according to the existing circuit board inspection method, there needs to be an inspection area, an uninspected product placement area, a good product placement area, and a defective product placement area near each inspection fixture. This also causes the existing circuit board inspection method to occupy a large area, making it impossible to set up multiple inspection fixtures in a certain area to improve inspection efficiency.

[0022] Therefore, how to improve the structure of circuit board testing equipment, simplify the testing process, and improve the testing efficiency has become a topic that needs to be urgently solved in this field.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0024] Please also see Figures 1 to 3 The present application provides a circuit board inspection device A, which is used to inspect the circuit board after production to screen out defective products generated during the production process, thereby ensuring the factory quality of the circuit board. Specifically, the circuit board inspection device A may include a first conveying device 100, a second conveying device 200 and a detection station 300.

[0025] Among them, the starting end of the first conveying device 100 is connected with the discharge port of the front-end device 500, which is used to convey the undetected circuit board. In practical applications, the front-end device 500 can be a circuit board production device, and the circuit board produced by the circuit board production device is directly placed on the first conveying device 100, and the first conveying device 100 conveys the circuit board placed thereon to the detection station 300 for detection. Of course, the front-end device 500 can also be a material distribution device located between the detection station 300 and the circuit board production device. For example, the circuit board produced by the circuit board production device is collected by the material distribution device and distributed to the first conveying device 100 according to the preset rules, wherein the preset rules can be preset spacing, preset time or preset position, etc., and this application does not make specific restrictions on this. However, it should be particularly pointed out that no matter what kind of equipment the front-end device 500 is, the front-end device 500 and the detection station 300 are located on the same assembly line, and the circuit board will automatically transfer from the production process to the detection process. In this way, the user does not need to perform material collection, material distribution and handling operations on the circuit board, thereby reducing the user's labor intensity, simplifying the detection process, and improving the detection efficiency.

[0026] In this embodiment, the terminal end of the second conveying device 200 is connected to the feed port of the back-end device 600, and the second conveying device 200 is used to convey the circuit boards that have passed the test, and convey the circuit boards that have passed the test to the back-end device 600. In practical applications, the back-end device 600 can be a packaging device or a stacking device, etc. The circuit boards that have passed the test at the inspection station 300 are placed on the second conveying device 200, and the second conveying device 200 conveys the circuit boards that have passed the test to the back-end device 600 for packaging or stacking and collection. Similarly, the inspection station 300 and the back-end device 600 are located on the same assembly line, and the circuit boards that have passed the test also do not require the user to perform material collection and handling operations, which further reduces the user's intensity and simplifies the overall process.

[0027] In this embodiment, the inspection station 300 may include a first row inspection group 310, a second row inspection group 320 and a transfer mechanism 330. The first row inspection group 310, the second row inspection group 320, the first conveying device 100 and the second conveying device 200 are located within the grabbing range of the transfer mechanism 330. The transfer mechanism 330 is used to send the circuit board on the first conveying device 100 to the first row inspection group 310 and the second row inspection group 320 for testing, and send the circuit board that has passed the test to the second conveying device 200. In this way, the inspection station 300 is provided with the first row inspection group 310 and the second row inspection group 320 to jointly inspect the circuit board, thereby improving the inspection efficiency. At the same time, the loading and unloading operations of the circuit boards on the first row inspection group 310 and the second row inspection group 320 are realized by one transfer mechanism 330, thereby reducing the manufacturing cost.

[0028] It should be noted that the first conveying device 100 and the second conveying device 200 may include but are not limited to a belt conveyor line, a roller conveyor line, a chain conveyor line, and the like.

[0029] In one possible implementation, Figure 3 As shown, the first row inspection group 310 and the second row inspection group 320 can be arranged in parallel and spaced apart. The transfer mechanism 330, the first conveying device 100 and the second conveying device 200 should be located between the first row inspection group 310 and the second row inspection group 320. In this way, the distance between the transfer mechanism 330, the first conveying device 100 and the second conveying device 200 reaching the first row inspection group 310 and the second row inspection group 320 respectively can be shortened, and the transfer time of the transfer mechanism 330 transferring the circuit board between the first conveying device 100, the second conveying device 200, the first row inspection group 310 and the second row inspection group 320 can be saved.

[0030] Furthermore, the transfer mechanism 330 should be located between the first conveying device 100 and the second conveying device 200, so that the distance from the transfer mechanism 330 to the first conveying device 100 is equal to the distance from the transfer mechanism 330 to the second conveying device 200, and the distance from the transfer mechanism 330 to the first row of detection groups 310 is equal to the distance from the transfer mechanism 330 to the second row of detection groups 320. In this way, the maximum working stroke of the transfer mechanism 330 can be reduced, so that a small stroke transfer mechanism 330 can be selected during model selection, saving the production cost of the circuit board detection equipment.

[0031] In an achievable implementation, the first row inspection group 310 and the second row inspection group 320 each include a plurality of test cabinets 311. The plurality of test cabinets 311 are arranged at intervals along the conveying direction of the first conveying device 100. Each test cabinet 311 can inspect the circuit board respectively, and the first row inspection group 310 and the second row inspection group 320 respectively arrange a plurality of test cabinets 311 to increase the inspection volume per hour of the inspection station 300 and improve the inspection efficiency.

[0032] In this embodiment, the number of the test cabinets 311 in the first row of the test group 310 or the second row of the test group 320 can be one, two, or three, etc., and this application does not specifically limit this. It should be noted that the number of the test cabinets 311 in the first row of the test group 310 or the second row of the test group 320 should be selected according to the formation of the transfer mechanism 330 to ensure that the test cabinets 311 in the test station 300 are all located within the formation range of the transfer mechanism 330.

[0033] In practical applications, the inspection station 300 may also include a display 340 and a visual camera 350. The display 340 is used to display the test information of each test cabinet 311, so that the user can intuitively obtain the test information. There may be two displays 340, one of which is used to display the test information of each test cabinet 311 in the first row of the inspection group 310, and the other display 340 is used to display the test information of each test cabinet 311 in the second row of the inspection group 320. The camera direction of the visual camera 350 should be set corresponding to the first conveying device 100, and the position of the circuit board on the first conveying device 100 is visually located, so that the position information of the circuit board on the first conveying device 100 is transmitted to the transfer mechanism 330, and the transfer mechanism 330 performs precise grasping. A counter-shooting sensor may also be installed on the first conveying device 100 to detect whether there is a circuit board on the first conveying device 100 through the counter-shooting sensor.

[0034] In order to further improve the inspection efficiency of the circuit board inspection equipment, the above-mentioned inspection station 300 can have a plurality of inspection stations 300, which are arranged at intervals along the conveying direction of the first conveying device 100, and a plurality of inspection stations 300 are located within the conveying range of the first conveying device 100 and the second conveying device 200, so that the inspection capacity can be increased by adding inspection stations 300. Among them, the inspection station 300 can be provided with one, two, three, etc., and this application does not make specific limitations on this.

[0035] In actual application, when multiple testing stations 300 are provided, the length of the circuit board testing device is relatively increased. In order to facilitate users to travel back and forth between the two sides of the circuit board testing device, a cross-line staircase 700 may be installed between two adjacent testing stations 300. The height of the cross-line staircase 700 should be close to or flush with the height of the first conveying device 100 to facilitate users to cross the first conveying device 100.

[0036] In a feasible embodiment, when there are multiple testing stations 300, one first conveying device 100 and one second conveying device 200 can be respectively provided, so that one first conveying device 100 can feed and convey multiple testing stations 300, and one second conveying device 200 can unload and convey multiple testing stations 300.

[0037] Of course, in another feasible implementation, when there are multiple testing stations 300, there may also be multiple first conveying devices 100 and second conveying devices 200, and the number of testing stations 300, first conveying devices 100 and second conveying devices 200 is consistent, so that each testing station 300 can be respectively configured with an independent first conveying device 100 for feeding and conveying, and an independent second conveying device 200 for unloading and conveying, thereby avoiding mutual interference between multiple testing stations 300 and achieving greater testing capacity.

[0038] In this embodiment, multiple first conveying devices 100 can be stacked up and down, and multiple second conveying devices 200 can be stacked up and down to avoid mutual interference between the feeding and conveying of multiple detection stations 300 and reduce space occupation. Specifically, for ease of understanding, it can be set that the detection station 300, the first conveying device 100 and the second conveying device 200 each have N, where N≥2, 1≤n≤N, and N and n are integers. The N first conveying devices 100 are stacked from top to bottom, that is, they are stacked from top to bottom in the order of the first first conveying device 100, the second first conveying device 100...the Nth first conveying device 100, the first first conveying device 100 alone feeds and conveys to the first detection station 300, the second first conveying device 100 alone feeds and conveys to the second detection station 300...the Nth first conveying device 100 alone feeds and conveys to the Nth detection station 300. And the nth first conveying device 100 extends from the discharge port of the front-end device 500 to the nth detection station 300. It is understandable that the first first conveying device 100 only extends to the first inspection station 300, and does not extend to the second inspection station 300, and the N first conveying devices 100 are stacked from top to bottom, so that in the second inspection station 300, there is no obstruction on the top of the second first conveying device 100 used for feeding and conveying to the second inspection station 300. Similarly, the top of the nth first conveying device 100 in the nth inspection station 300 will not be obstructed by the remaining first conveying devices 100 above, so as to facilitate the transfer mechanism 330 in the corresponding inspection station 300 to perform the grabbing operation.

[0039] N second conveying devices 200 are stacked from bottom to top, that is, the first second conveying device 200, the second second conveying device 200, ... the Nth second conveying device 200 are stacked from bottom to top in the order of the first second conveying device 200, the second second conveying device 100 is used alone for unloading and conveying to the first inspection station 300, the second second conveying device 100 is used alone for unloading and conveying to the second inspection station 300 ... the Nth first conveying device 100 is used alone for unloading and conveying to the Nth inspection station 300, thereby avoiding mutual interference between unloading and conveying of multiple inspection stations 300, achieving greater inspection capacity, and reducing the space occupied by the circuit board inspection equipment. In addition, the nth second conveying device 200 extends from the nth inspection station 300 to the feed port of the back-end equipment 600. It can be understood that the first second conveying device 200 extends from the first inspection station 300 to the feed port of the back-end equipment 600, the second second conveying device 200 extends from the second inspection station 300 to the feed port of the back-end equipment 600... the nth second conveying device 200 extends from the nth inspection station 300 to the feed port of the back-end equipment 600, that is, there is no obstruction of the remaining second conveying devices 200 above the nth second conveying device 200 in the nth inspection station 300, thereby facilitating the unloading and placement operation of the transfer mechanism 330 in the nth inspection station 300.

[0040] In one possible implementation, Figure 4 As shown, the circuit board detection device A also includes a cache line 400. The cache line 400 is used to place circuit boards that fail the test, so that when the test cabinet 311 shows that the detected circuit board is unqualified, the transfer mechanism 330 can grab the circuit board on the test cabinet 311 to the cache line 400 for temporary storage, and alarm or alarm to notify the staff to take it away for repair after the cache line 400 is full.

[0041] Regarding the arrangement of the cache line 400 , this application provides two specific embodiments of the cache line 400 for reference.

[0042] In the first embodiment, the cache line 400 may have one, and the cache line 400 extends from the first inspection station 300 to the Nth inspection station 300 and is arranged in parallel with the first conveying device 100 and the second conveying device 200 .

[0043] In the second embodiment, there can be multiple cache lines 400 and they correspond to the number of the inspection stations 300. When there are N inspection stations 300, there are N-1 cache lines 400, the mth cache line 400 is set between the mth inspection station 300 and the m+1th inspection station 300, and the mth cache line 400 is located directly above the m+1th first conveying device 100, or the mth cache line 400 is located directly above the mth second conveying device 200. Wherein, 1≤m≤N-1, and m is an integer. It should be pointed out that, compared with the parallel arrangement of the cache line 400 and the first conveying device 100 and the second conveying device 200 in the first embodiment, the stacking arrangement of the cache line 400 and the first conveying device 100 or the second conveying device 200 in the present embodiment can further reduce the volume occupied by the circuit board inspection equipment, improve the integration, reduce the grasping stroke of the transfer mechanism 330, and reduce the single grasping time of the transfer mechanism 330. At the same time, the cache line 400 is set up between two adjacent testing stations 300 to facilitate the subsequent removal operation by the staff.

[0044] In practical applications, for example, there are two inspection stations 300, and correspondingly, there is one cache line 400, and the cache line 400 is set between the first inspection station 300 and the second inspection station 300. The cache line 400 can be composed of two belt conveyor lines. One end of one of the belt conveyor lines is overlapped on the first inspection station 300, and the other end extends toward between the first inspection station 300 and the second inspection station 300. One end of the other belt conveyor line is overlapped on the second inspection station 300, and the other end extends toward between the first inspection station 300 and the second inspection station 300. In this way, when the transfer mechanism 330 grabs the circuit board that fails the test to the corresponding belt conveyor line, the corresponding belt conveyor line can convey the circuit board on it toward between the first inspection station 300 and the second inspection station 300, so as to facilitate the staff to take it.

[0045] Regarding the specific structure of the transfer mechanism 330, in an achievable implementation, please refer to Figure 4 and Figure 5 As shown, the transfer mechanism 330 may include a manipulator 331 and a grabbing assembly 332, wherein the grabbing assembly 332 is connected to the manipulator 331, and the grabbing assembly 332 is used to follow the manipulator 331 to move and grab and place the circuit board. The manipulator 331 may be a four-axis manipulator, a five-axis manipulator, a six-axis manipulator, etc., which is not specifically limited in the present application.

[0046] In an achievable implementation, the gripping assembly 332 may include a carrier plate 3321, a first suction cup group 3322, and a second suction cup group 3323. The carrier plate 3321 is connected to the manipulator 331 via a connector 3324, the first suction cup group 3322 and the second suction cup group 3323 are connected to the carrier plate 3321, and the first suction cup group 3322 and the second suction cup group 3323 are centrally symmetrically arranged about the connector 3324. The end of the manipulator 331 should have a rotation function, and the manipulator 331 drives the carrier plate 3321 to rotate and move via the connector 3324.

[0047] It should be pointed out that the first suction cup group 3322 and the second suction cup group 3323 should be controlled separately by a solenoid valve, so that the first suction cup group 3322 and the second suction cup group 3323 work separately. In practical applications, when the test cabinet 311 shows that the test is completed, the grabbing assembly 332 can first grab a circuit board to be tested on the first conveying device 100 through the first suction cup group 3322, and then as the manipulator 331 moves, the second suction cup group 3323 grabs the circuit board that has been tested on the test cabinet 311, and then the manipulator 331 controls the carrier 3321 to rotate 180° to place the circuit board to be tested on the test cabinet 311. Obviously, in this embodiment, the loading and unloading operations of the test cabinet 311 can be realized in one reciprocating stroke of the manipulator, thereby improving the efficiency of loading and unloading circuit boards in the test cabinet 311, thereby further improving the detection efficiency of the circuit board detection equipment.

[0048] Of course, the grabbing assembly 332 may also have only one suction cup set, and this application does not make any specific limitation to this.

[0049] In one possible implementation, Figure 6 The test cabinet 311 may include a base 3111 and a test fixture 3112. The base 3111 serves as a carrier of the test cabinet 311, and supports and protects other components of the test cabinet 311. The test fixture 3112 is connected to the base 3111, and the distribution positions of the probes on the test fixture 3112 are consistent with the distribution positions of the test points on the untested circuit board, so that the probes on the test fixture 3112 contact the test points on the untested circuit board, thereby testing the untested circuit board.

[0050] In order to ensure the stability of the contact between the probe on the test fixture 3112 and the test point on the circuit board. In a feasible embodiment, the test cabinet 311 may also include a pressure plate 3113. The pressure plate 3113 is located directly above the test fixture 3112. The pressure plate 3113 is connected to the base 3111 through a driving component 3114. The driving component 3114 is used to drive the pressure plate 3113 to move toward the test fixture 3112, thereby pressing the circuit board on the test fixture 3112, so that the test point on the circuit board is in close contact with the probe on the test fixture 3112, so as to avoid misdetection caused by poor contact.

[0051] In this embodiment, the test fixture 3112 may also be provided with a positioning block and / or a positioning pin, so that the circuit board placed on the test fixture 3112 is positioned by the positioning block and / or the positioning pin to ensure that the test point on the circuit board is accurately contacted with the probe on the test fixture 3112. In practical applications, the driving component 3114 includes a motor and a screw rod, the motor is fixed on the base 3111, the screw rod is connected to the motor drive, the pressing plate 3113 is slidably connected to the base 3111 and is threadedly connected to the screw rod, so that when the motor drives the screw rod to rotate forward and reverse, the pressing plate 3113 can be driven to move up and down.

[0052] In one feasible embodiment, a pressure rod 3115 is provided on one side of the pressure plate 3113 close to the test fixture 3112, and the distribution position of the pressure rod 3115 corresponds to the corner position of the circuit board, so that when the driving component 3114 drives the pressure plate 3113 to move toward the test fixture 3112, the pressure rod 3115 contacts and presses down the corner of the circuit board on the test fixture 3112, thereby ensuring that the detection point on the circuit board is in close contact with the probe on the test fixture 3112.

[0053] Furthermore, the test cabinet 311 also includes a transfer backplane 3116. The transfer backplane 3116 is connected to the test instrument through the interface backplane 3117. The test fixture 3112 is detachably connected to the base 3111. When the test fixture 3112 is connected to the base 3111, the probe on the transfer backplane 3116 is connected to the probe on the test fixture 3112. In this way, on the one hand, the test instrument only needs to plug the plug into the jack on the interface backplane 3117 to achieve electrical connection with the test cabinet 311, which is convenient for assembly operation. On the other hand, due to the detachable connection between the test fixture 3112 and the base 3111, when the circuit board being tested needs to be replaced, the staff only needs to replace the test fixture 3112 to achieve quick line change, which has strong applicability and convenient operation.

[0054] In practical applications, a positioning pin may also be provided on the base 3111, and correspondingly, a positioning hole may be provided on the test fixture 3112. The test fixture 3112 may be quickly connected to the base 3111 by the positioning pin and the positioning hole.

[0055] Based on the same inventive concept, Figure 7 As shown, the present application also provides a circuit board production line. The circuit board production line may include a front-end device 500, a back-end device 600 and the above-mentioned circuit board testing device A. The front-end device 500 is used to produce circuit boards, and the produced circuit boards are transported to the circuit board detection device A through the first conveying device 100 of the circuit board testing device A for detection. The circuit board detection device A is used to detect circuit boards, and the qualified circuit boards are transported to the back-end device 600 through the second conveying device 200 of the circuit board detection device. Among them, the back-end device 600 can be a packaging device or a stacking collection device, etc.

[0056] It is worth mentioning that the circuit board production line integrates production, testing and packaging, and no staff is required to collect, store and transport the circuit boards, which greatly improves the production capacity of the circuit boards. Regarding the specific structure of the circuit board testing equipment A, reference can be made to the content in the above embodiment, and this application does not make specific limitations on this.

[0057] It can be seen that the technical solution provided by the present application is that the circuit board detection equipment includes a first conveying device, a second conveying device and a detection station. The circuit boards produced by the front-end equipment can be directly conveyed to the detection station for testing through the first conveying device, and the circuit boards that pass the test can be directly sent to the back-end equipment through the second conveying device. In this way, the material collection, discharge and handling operations between the production process, the detection process and the back-end process can be saved, the detection process can be simplified, and the detection efficiency can be improved. At the same time, the first row detection group, the second row detection group, the first conveying device and the second conveying device are located within the grasping range of the transfer mechanism, so that the loading and unloading operations of the circuit boards on the first row detection group and the second row detection group can be realized by one transfer mechanism, thereby reducing the manufacturing cost.

[0058] Furthermore, each inspection station can be equipped with an independent first conveying device for feeding and conveying, and an independent second conveying device for unloading and conveying, so as to avoid mutual interference between multiple inspection stations and achieve greater inspection capacity. In addition, multiple first conveying devices and multiple second conveying devices are stacked up and down, respectively, which can also reduce the volume of the circuit board inspection equipment and reduce space occupation.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A circuit board testing device, characterized in that: The circuit board detection device comprises a first conveying device, a second conveying device and a detection station; The starting end of the first conveying device is connected to the discharge port of the front-end equipment to convey the uninspected circuit board; The terminal end of the second conveying device is connected to the feed port of the back-end equipment to convey the circuit boards that have passed the test; The inspection station includes a first row inspection group, a second row inspection group and a transfer mechanism. The first row inspection group, the second row inspection group, the first conveying device and the second conveying device are located within the grasping range of the transfer mechanism. The transfer mechanism is used to send the circuit boards on the first conveying device to the first row inspection group and the second row inspection group for testing, and send the circuit boards that pass the test to the second conveying device.

2. The circuit board detection device according to claim 1, characterized in that: The first row of detection groups and the second row of detection groups are arranged in parallel and at intervals; The transfer mechanism, the first conveying device, and the second conveying device are all located between the first row inspection group and the second row inspection group, and the transfer mechanism is located between the first conveying device and the second conveying device.

3. The circuit board detection device according to claim 2, characterized in that: The first row of detection groups and the second row of detection groups each include a number of test cabinets; A plurality of the test cabinets are arranged at intervals along a conveying direction of the first conveying device.

4. The circuit board detection device according to claim 3, characterized in that: The detection stations have a number; The plurality of detection stations are arranged at intervals along the conveying direction of the first conveying device, and the plurality of detection stations are located within the conveying ranges of the first conveying device and the second conveying device.

5. The circuit board detection device according to claim 4, characterized in that: The number of the detection stations, the first conveying devices and the second conveying devices is the same, and there are N of them; N first conveying devices are stacked in sequence from top to bottom, and the nth first conveying device extends from the discharge port of the front-end equipment to the nth detection station; N second conveying devices are stacked in sequence from bottom to top, and the nth second conveying device extends from the nth detection station to the feed port of the back-end equipment; Wherein, N≥2, 1≤n≤N, and N and n are both integers.

6. The circuit board detection device according to claim 5, characterized in that: The circuit board detection device further comprises a cache line, wherein the cache line is used to place circuit boards that fail the test; There are N-1 cache lines, the mth cache line is arranged between the mth detection station and the m+1th detection station, and the mth cache line is located directly above the m+1th first conveying device, or the mth cache line is located directly above the mth second conveying device; Here, 1≤m≤N-1, and m is an integer.

7. The circuit board detection device according to claim 5 or 6, characterized in that: The transfer mechanism includes a manipulator and a grasping assembly; The grabbing assembly is connected to the manipulator, and is used to follow the manipulator to move and grab and place the circuit board.

8. The circuit board detection device according to claim 7, characterized in that: The gripping assembly includes a carrier plate, a first suction cup group and a second suction cup group; The carrier is connected to the manipulator via a connecting piece, and the manipulator is used to drive the carrier to rotate and move via the connecting piece; The first suction cup group and the second suction cup group are connected to the carrier plate, and the first suction cup group and the second suction cup group are centrally symmetrically arranged with respect to the connecting member.

9. The circuit board detection device according to claim 3, characterized in that: The test cabinet comprises a base, a test fixture and a pressure plate; The test fixture is connected to the base, and the distribution positions of the probes on the test fixture are consistent with the distribution positions of the test points on the circuit board; The pressing plate is connected to the base via a driving component, and the driving component is used to drive the pressing plate to move toward the test fixture to press the circuit board on the test fixture so that the test points on the circuit board contact the probes on the test fixture.

10. The circuit board detection device according to claim 9, characterized in that: A pressing rod is provided on one side of the pressing plate close to the test fixture; The distribution positions of the pressing bars correspond to the corner positions of the circuit board, so that when the driving component drives the pressing plate to move toward the test fixture, the pressing bars contact and press down the corners of the circuit board on the test fixture.

11. The circuit board detection device according to claim 10, characterized in that: The test cabinet also includes a transfer backplane; The adapter backplane is connected to the test instrument via the interface backplane; The test fixture is detachably connected to the base, and when the test fixture is connected to the base, the probes on the adapter backplane are connected to the probes on the test fixture.

12. A circuit board production line, characterized in that: The circuit board production line comprises a front-end device, a back-end device and a circuit board detection device according to any one of claims 1 to 11; The front-end device is used to produce circuit boards, and transport the produced circuit boards to the circuit board testing equipment through the first transport device of the circuit board testing equipment; The circuit board detection device is used to detect circuit boards, and transport the circuit boards that pass the test to the back-end device through the second transport device of the circuit board detection device.

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