A feeding and discharging mechanism

Abstract

The utility model discloses a kind of feeding and discharging mechanism, applied to flying probe tester, it includes test frame, the first end and the second end of test frame along first direction are respectively provided with the feeding conveying component and the discharging conveying component for carrying and conveying circuit board, feeding conveying component includes feeding flat belt and feeding guide, feeding flat belt has top end face parallel to the first direction arrangement;Feeding guide is set to the directly above of feeding flat belt, the lower end of feeding guide is provided with feeding guide groove, feeding guide groove is used for the upper end of circuit board to be embedded sliding;Feeding guide is relatively close to the side of second end and is provided with first clamp, first clamp is provided with the guide slot of intercommunication feeding guide groove, first clamp has the clamping state of the surrounding wall of guide slot and circuit board upper end is clamped, and make the release state of guide slot and circuit board upper end sliding. The feeding action and discharging action of the utility model can be synchronous operation, improve detection rhythm.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, specifically to a loading and unloading mechanism. Background Technology

[0002] Flying probe testing equipment is used to perform electrical performance tests on circuit boards (specifically PCBs). In practice, the circuit board is typically placed manually into the corresponding fixture, then clamped and secured for testing. After testing, the circuit board is manually removed. This entire process requires manual loading and unloading, demanding high operator skill. Furthermore, manual loading is susceptible to human error, potentially leading to unreliable test results. To address these issues, some manufacturers have developed loading and unloading equipment. This equipment features loading and unloading components on the same side of the testing frame. The loading component automatically transports the circuit board to the corresponding fixture, where it is clamped for testing. The unloading component automatically removes the circuit board after testing. However, this type of equipment requires alternating loading and unloading actions, making synchronous operation impossible and increasing waiting time, resulting in lower overall production efficiency. Utility Model Content

[0003] Therefore, this utility model provides a loading and unloading mechanism to solve the problem that the loading and unloading actions of the loading and unloading equipment used in the flying probe testing device in the prior art need to be performed alternately and cannot be operated synchronously, resulting in increased waiting time and low overall production efficiency.

[0004] This utility model provides a loading and unloading mechanism for use in a flying probe testing machine, the loading and unloading mechanism comprising:

[0005] Testing framework;

[0006] A feeding conveyor assembly is disposed at a first end of the test frame along a first direction. The feeding conveyor assembly includes a feeding flat belt and a feeding guide. The feeding flat belt has a top surface arranged parallel to the first direction, and the top surface of the feeding flat belt is used to carry and convey the circuit board. The feeding guide is disposed directly above the feeding flat belt, and the lower end of the feeding guide is provided with a feeding guide groove, which is used for the upper end of the circuit board to be inserted and slid.

[0007] A feeding and conveying assembly is disposed at the second end of the test frame along the first direction, and the feeding and conveying assembly is used to carry and convey the circuit board;

[0008] A first clamp is disposed on the side of the feed guide that is relatively close to the second end. The first clamp is provided with a guide groove that communicates with the feed guide groove. The first clamp has a clamping state in which the wall of the guide groove clamps the upper end of the circuit board, and a releasing state in which the guide groove allows the upper end of the circuit board to slide.

[0009] The loading and unloading mechanism according to this utility model has at least the following technical effects:

[0010] By setting a feeding conveyor assembly and a discharging conveyor assembly at the first and second ends of the test frame, respectively, and setting a guide groove in the first fixture that connects to the feeding guide groove, during testing, the upper end of the circuit board is embedded in the feeding guide groove, and the lower end of the circuit board is placed on the top surface of the feeding flat belt. Then, the feeding conveyor assembly is started, causing the top surface of the feeding flat belt to move from the first end to the second end of the test frame along the first direction. This allows the circuit board to be smoothly conveyed to the set position of the guide groove along the first direction under the guidance of the feeding guide groove. After that, the feeding flat belt is stopped, and the first fixture is switched from the released state to the clamping state, thus clamping and fixing the upper end of the circuit board for testing. After the test is completed, the circuit board is tested. The first fixture is switched from the clamping state to the releasing state. Then, the feeding and unloading conveying components are activated, so that the circuit board is conveyed to the unloading conveying component under the guidance of the guide groove, and then conveyed to the second end of the test frame for unloading. This realizes the automatic conveying of the circuit board to the corresponding first fixture station for clamping and testing, and the automatic unloading of the circuit board after the test. This reduces manual intervention and improves testing efficiency and reliability. At the same time, the feeding and unloading conveying components are physically separated in space along the first direction, which makes it less likely for the feeding and unloading actions to cause collisions or interference, allowing them to be operated synchronously, improving the testing cycle, and preventing the circuit board to be tested from being confused with the circuit board that has already been tested.

[0011] In one optional embodiment, the first clamp includes a first clamping plate and a second clamping plate spaced apart along a second direction, the clamping areas of the first clamping plate and the second clamping plate forming the guide groove, the first clamping plate being connected to the feed guide; the second clamping plate being driven by a first power mechanism to move relative to the first clamping plate along a second direction, thereby causing the first clamp to switch between a clamping state and a releasing state.

[0012] In one optional embodiment, a first guide post is provided on the side of the first clamping plate facing the second clamping plate, and the second clamping plate is slidably disposed on the first guide post along a second direction; the first power mechanism includes:

[0013] The first push plate is slidably disposed on the side of the first clamping plate facing the second clamping plate. The first push plate is located above the second clamping plate. The first push plate is provided with a first oblique guide hole in the vertical direction. The first oblique guide hole extends gradually towards the feed guide in the first direction and is inclined away from the first clamping plate in the second direction.

[0014] A first cylinder is disposed on the first clamping plate along a first direction. The telescopic end of the first cylinder is connected to the first push plate and drives the first push plate to move along the first direction.

[0015] The first push post is located at the upper end of the second clamping plate and is slidably inserted into the first inclined guide hole.

[0016] In one optional embodiment, the upper end face of the first push plate is provided with a first elongated groove, which is parallel to a first direction; the side of the first clamping plate facing the first push plate is provided with a first guide portion, which is slidably disposed in the first elongated groove along the first direction.

[0017] In one optional embodiment, the feeding conveyor assembly includes a feeding flat belt and a feeding guide. The feeding flat belt has a top surface arranged parallel to a first direction, and the top surface of the feeding flat belt is used to carry and convey the circuit board. The feeding guide is disposed directly above the feeding flat belt, and the lower end of the feeding guide is provided with a feeding guide groove, which communicates with the guide groove. The feeding guide groove is used for the upper end of the circuit board to be inserted and slid.

[0018] In one optional embodiment, the test frame is provided with a mounting frame, the mounting frame is arranged along a first direction, the feeding conveying assembly and the unloading conveying assembly are arranged on the mounting frame, and the top of the mounting frame is provided with a guide groove along the first direction, the guide groove being used for the lower end of the circuit board to be inserted and slid.

[0019] In one optional embodiment, the guide groove includes a first groove located directly below the feed guide groove. The top of the mounting frame is detachably connected to two first connecting plates at the position corresponding to the feed end of the feed flat belt. The two first connecting plates are spaced apart along a second direction, and the clamping area of ​​the two first connecting plates forms the first groove.

[0020] And / or, the guide groove includes a second groove located directly below the unloading guide groove, and the top of the mounting frame is detachably connected to two second connecting plates corresponding to the position of the unloading flat belt. The two second connecting plates are spaced apart along a second direction, and the clamping area of ​​the two second connecting plates forms the second groove.

[0021] In one optional embodiment, the first connecting plate has a first through hole extending vertically, the first through hole being used for a first bolt to pass through, and the top of the mounting frame has a first threaded hole corresponding to the position of the first through hole, the first threaded hole being matched with the first bolt.

[0022] And / or, the second connecting plate is provided with a second through hole in the vertical direction, the second through hole is used for the second bolt to pass through, and the top of the mounting frame is provided with a second threaded hole corresponding to the position of the second through hole, the second threaded hole is matched with the second bolt.

[0023] In one optional embodiment, the guide groove further includes a third groove located directly below the guide groove. A second clamp is provided on the mounting frame. The second clamp includes a third clamping plate and a fourth clamping plate spaced apart along a second direction. The clamping area of ​​the third clamping plate and the fourth clamping plate forms the third groove. The second clamp has a clamping state in which the wall of the third groove clamps the lower end of the circuit board, and a releasing state in which the lower end of the circuit board slides through the third groove. The third clamping plate is fixedly connected to the mounting frame. The fourth clamping plate is driven by a second power mechanism to move relative to the third clamping plate along the second direction, thereby switching the second clamp between the clamping state and the releasing state.

[0024] In one optional embodiment, a second guide post is provided on the side of the third clamping plate facing the fourth clamping plate, and the fourth clamping plate is slidably disposed on the second guide post along a second direction; the second power mechanism includes:

[0025] The second push plate is slidably disposed on the side of the third clamping plate facing the fourth clamping plate. The second push plate is located below the fourth clamping plate. The second push plate is provided with a second oblique guide hole in the vertical direction. The second oblique guide hole extends gradually closer to the feed guide in the first direction and is inclined away from the third clamping plate in the second direction.

[0026] The second cylinder is disposed on the third clamping plate along the first direction. The telescopic end of the second cylinder is connected to the second push plate and drives the second push plate to move along the first direction.

[0027] The second push post is located at the lower end of the fourth clamping plate and is slidably inserted into the second inclined guide hole. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment;

[0030] Figure 2 This is a rear-view stereoscopic structural diagram of this embodiment;

[0031] Figure 3 This is a schematic diagram of the assembly structure of the first power mechanism, the first clamp, the feeding guide and the unloading guide in this embodiment;

[0032] Figure 4 This is a three-dimensional structural diagram of the first power mechanism and the first clamp in the released state assembled in this embodiment;

[0033] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0034] Figure 6 for Figure 4 Inverted structural diagram;

[0035] Figure 7 This is a three-dimensional structural diagram of the assembly of the second power mechanism and the second clamp in the released state in this embodiment;

[0036] Figure 8 for Figure 7 A schematic diagram of the inverted structure;

[0037] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0038] Figure 10 This is a schematic diagram of the assembly structure of the feed flat belt and the discharge flat belt in this embodiment.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-Test frame, 110-Mounting frame, 120-First connecting plate, 121-First groove, 122-First through hole, 130-Second connecting plate, 131-Second groove, 132-Second through hole;

[0041] 210-Feed flat belt, 220-Feed guide, 221-Feed guide groove, 230-Feed motor;

[0042] 300-First clamp, 310-Guide groove, 320-First clamping plate, 321-First guide post, 322-First guide part, 330-Second clamping plate;

[0043] 410 - First push plate, 411 - First oblique guide hole, 412 - First elongated groove, 420 - First cylinder, 430 - First push column;

[0044] 510-Plain conveyor belt for feeding, 520-Feeding guide, 521-Feeding guide groove, 530-Feeding motor;

[0045] 600-Second clamp, 610-Third groove, 620-Third clamping plate, 621-Second guide post, 622-Second guide part, 630-Fourth clamping plate;

[0046] 710 - Second push plate, 711 - Second oblique guide hole, 712 - Second long groove, 720 - Second cylinder, 730 - Second push column. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0050] The following is combined Figures 1 to 10 The following describes embodiments of the present invention.

[0051] According to an embodiment of the present invention, a loading and unloading mechanism is provided, applied to a flying probe testing machine. The loading and unloading mechanism includes a testing frame 100. A feeding conveying assembly is provided at a first end of the testing frame 100 along a first direction. The feeding conveying assembly includes a feeding flat belt 210 and a feeding guide 220. The feeding flat belt 210 has a top surface arranged parallel to the first direction, and the top surface of the feeding flat belt 210 is used to carry and convey circuit boards. The feeding guide 220 is disposed directly above the feeding flat belt 210, and a feeding guide groove 221 is provided at the lower end of the feeding guide 220. The groove 221 is used for the upper end of the circuit board to slide into; the feed guide 220 is provided with a first clamp 300 on the side relatively close to the second end, the first clamp 300 is provided with a guide groove 310 communicating with the feed guide groove 221, the first clamp 300 has a clamping state in which the wall of the guide groove 310 clamps the upper end of the circuit board, and a releasing state in which the guide groove 310 allows the upper end of the circuit board to slide; the test frame 100 is provided with a feeding conveyor assembly at the second end along the first direction, the feeding conveyor assembly is used to receive the circuit board delivered by the feed flat belt 210, and to carry and convey the circuit board.

[0052] In this embodiment, the loading and unloading mechanism has a feeding conveyor and an unloading conveyor respectively provided at the first and second ends of the test frame 100. The first clamp 300 is provided with a guide groove 310 communicating with the feeding guide groove 221. During testing, the upper end of the circuit board is embedded in the feeding guide groove 221, and the lower end of the circuit board is placed on the top surface of the feeding flat belt 210. Then, the feeding conveyor is activated, causing the top surface of the feeding flat belt 210 to move along the first direction from the first end of the test frame 100 to the second end. This allows the circuit board to be smoothly conveyed to the guide groove 310 along the first direction under the guidance of the feeding guide groove 221. After this setting, the feeding flat belt 210 is stopped, and the first clamp 300 is switched from a released state to a clamping state, achieving clamping. The upper end of the fixed circuit board is tested. After the test is completed, the first fixture 300 is switched from the clamping state to the releasing state. Then, the feeding conveyor and unloading conveyor are started, so that the circuit board is conveyed to the unloading conveyor under the guidance of the guide groove 310 and is conveyed to the second end of the test frame 100 for unloading. This realizes the automatic conveying of the circuit board to the corresponding station of the first fixture 300 for clamping and testing, and the automatic unloading of the circuit board after the test. The process reduces manual intervention and improves testing efficiency and reliability. At the same time, the feeding conveyor and unloading conveyor are physically separated in space along the first direction, which makes it less likely for the feeding and unloading actions to cause collisions or interference, allowing them to be operated synchronously, improving the testing cycle, and preventing the circuit board to be tested from being confused with the circuit board that has been tested.

[0053] It should be noted that in this embodiment, the guide groove 310 and the feed guide groove 221 are aligned and connected along the first direction to ensure that the circuit board is smoothly transported into the guide groove 310 along the first direction under the guidance of the feed guide groove 221.

[0054] It should be noted that in this embodiment, the feeding conveyor and the unloading conveyor are respectively set at the first end and the second end of the test frame 100, so that the feeding end of the feeding conveyor and the unloading end of the unloading conveyor have more space to add automated equipment (such as a robotic arm), realize assembly line operation, and have strong scalability.

[0055] It is understood that the first end and the second end mentioned in the text refer to the two opposite ends of the test frame 100 along the first direction. For ease of description, this embodiment uses... Figure 1 The test frame 100 is positioned with its left end along the first direction as the first end (i.e., the feed end), and with... Figure 1 The test frame 100 is described with the right end relative to the first direction as the second end (i.e. the feeding end), but it should not be interpreted as a clear definition of the first end and the second end.

[0056] It is understandable that the first and second directions mentioned in the text are located on the same horizontal plane, and the first, second, and vertical directions are mutually perpendicular. For ease of description, they are referred to as... Figure 1 The first direction, the second direction, and the vertical direction are described as the first direction, the second direction, and the vertical direction.

[0057] In specific applications, the guide groove 310 can be located entirely above the feed flat belt 210, or partially above the feed flat belt 210 and partially above the unloading conveyor assembly. In this embodiment, it is preferable to locate the guide groove 310 entirely above the feed flat belt 210 to ensure that only the feeding conveyor assembly needs to be activated during the process of loading the circuit board to the testing station.

[0058] like Figures 2 to 6 As shown, in some embodiments, the first clamp 300 includes a first clamping plate 320 and a second clamping plate 330 spaced apart along a second direction. The clamping areas of the first clamping plate 320 and the second clamping plate 330 form the guide groove 310. The first clamping plate 320 is connected to the feed guide 220. The second clamping plate 330 is driven by a first power mechanism to move relative to the first clamping plate 320 along the second direction, so as to drive the first clamp 300 to switch between a clamping state and a releasing state. By driving the second clamping plate 330 to move closer to or further away from the first clamping plate 320 in the second direction, the size of the guide groove 310 in the second direction is controlled, thereby achieving precise automatic switching of the first clamp 300 between the clamping and releasing states. At the same time, by fixing the first clamping plate 320 to the feed guide 220, the side wall of the first clamping plate 320 facing the second clamping plate 330 is flush with a wall of the feed guide groove 221 in the first direction, so that a wall of the guide groove 310 is always flush with a wall of the feed guide groove 221 in the first direction, ensuring that the circuit board smoothly enters the guide groove 310 from the feed guide groove 221.

[0059] like Figure 4 and Figure 5As shown, specifically, a first guide post 321 is provided on the side of the first clamping plate 320 facing the second clamping plate 330, and the second clamping plate 330 is slidably disposed on the first guide post 321 along a second direction; the first power mechanism includes a first push plate 410 and a first cylinder 420, the first push plate 410 is slidably disposed on the side of the first clamping plate 320 facing the second clamping plate 330, the first push plate 410 is located above the second clamping plate 330, and a first oblique guide post is provided through the first push plate 410 in a vertical direction. The first inclined guide hole 411 extends gradually towards the feed guide 220 along the first direction and is inclined away from the first clamping plate 320 along the second direction; the first cylinder 420 is disposed on the first clamping plate 320 along the first direction, the telescopic end of the first cylinder 420 is connected to the first push plate 410, and drives the first push plate 410 to move along the first direction; the upper end of the second clamping plate 330 is provided with a first push post 430, which is slidably inserted into the first inclined guide hole 411. A first inclined guide hole 411 is provided on the first push plate 410, and the upper end of the second clamping plate 330 is slidably inserted into the first inclined guide hole 411 via the first push post 430. When the first clamp 300 needs to be switched to the clamping state, the telescopic end of the first cylinder 420 extends, driving the first push plate 410 to move to the left in the first direction. At this time, the inner wall of the first inclined guide hole 411 applies a leftward force to the first push post 430, causing the first push post 430 to gradually move closer to the first clamping plate 320 along the arrangement direction of the first inclined guide hole 411, thereby causing the second clamping plate 330 to gradually move closer to the first clamping plate 320 in the second direction, thus switching the first clamping plate 300 to the clamping state. When in the released state, the telescopic end of the first cylinder 420 retracts, driving the first push plate 410 to move to the right along the first direction. At this time, the inner wall of the first oblique guide hole 411 applies a rightward force to the first push column 430, causing the first push column 430 to gradually move away from the first clamping plate 320 along the arrangement direction of the first oblique guide hole 411. This causes the second clamping plate 330 to gradually move away from the first clamping plate 320 along the second direction, thus switching the first clamp 300 to the released state. This achieves precise automatic switching between the clamping and released states of the first clamp 300 based on the arrangement of the first cylinder 420 along the first direction. This makes the size along the second direction smaller in this embodiment, making it particularly suitable for use environments where space is limited along the second direction. It is understood that the left and right directions mentioned here refer to... Figure 4 Described from a perspective.

[0060] like Figure 1 As shown, specifically, the first cylinder 420 is disposed on the side of the first push plate 410 that is relatively close to the second end of the test frame 100.

[0061] like Figure 4 and Figure 5 As shown, specifically, the upper end face of the first push plate 410 is provided with a first elongated groove 412, which is parallel to the first direction; the side of the first clamping plate 320 facing the first push plate 410 is provided with a first guide portion 322, which is slidably disposed within the first elongated groove 412 along the first direction. Through the guiding effect of the first guide portion 322 and the first elongated groove 412, the first push plate 410 moves smoothly along the first direction under the drive of the first cylinder 420, thereby ensuring that the first clamp 300 is accurately and automatically switched between the clamping state and the releasing state.

[0062] In specific applications, the number of the first elongated slots 412 is reasonably selected based on the dimensions of the first push plate 410 along the first direction, such as... Figure 4 As shown, in this embodiment, four first elongated grooves 412 are preferably provided.

[0063] like Figure 1 , Figure 2 and Figure 10 As shown, in some embodiments, the feeding conveyor assembly includes a feeding flat belt 510 and a feeding guide 520. The feeding flat belt 510 has a top surface arranged parallel to a first direction, and the top surface of the feeding flat belt 510 is used to carry and convey the circuit board. The feeding guide 520 is disposed directly above the feeding flat belt 510, and the lower end of the feeding guide 520 is provided with a feeding guide groove 521. The feeding guide groove 521 communicates with the guide groove 310, and the feeding guide groove 521 is used for the upper end of the circuit board to be inserted and slid. By setting a feeding guide 520 directly above the feeding flat belt 510, and setting a feeding guide groove 521 at the lower end of the feeding guide 520 that is aligned and connected with the guide groove 310 along the first direction; after the test is completed, the feeding conveyor assembly and the feeding conveyor assembly are started, so that the circuit board is smoothly conveyed into the feeding guide groove 521 along the first direction under the guidance of the guide groove 310, and conveyed to the second end of the test frame 100 for unloading under the guidance of the feeding guide groove 521. This realizes the automatic conveying of the circuit board to the corresponding first fixture 300 station for clamping and testing, and the automatic unloading of the circuit board after the test, reducing manual intervention and improving testing efficiency and reliability of test results.

[0064] like Figure 2 and Figure 3As shown, specifically, the end of the first clamping plate 320 facing away from the feeding guide 220 along the first direction is fixedly connected to the unloading guide 520, so that the side wall of the first clamping plate 320 facing the second clamping plate 330 is flush with a wall of the unloading guide groove 521 along the first direction, so that a wall of the guide groove 310 and a wall of the unloading guide groove 521 are always flush along the first direction, ensuring that the circuit board smoothly enters the unloading guide groove 521 from the guide groove 310.

[0065] It is understandable that, such as Figure 10 As shown, the top surface of the feed flat belt 210 and the top surface of the discharge flat belt 510 are aligned along the first direction.

[0066] In some embodiments, the feeding conveyor assembly and the unloading conveyor assembly are disposed on the mounting frame 110. A guide groove is provided at the top of the mounting frame 110 along a first direction, and the guide groove is used for the lower end of the circuit board to slide into it. By providing guide grooves at the corresponding positions of the feeding conveyor assembly and the unloading conveyor assembly, the guide grooves can be used to guide and insert the lower end of the circuit board during the movement of the circuit board along the first direction driven by the feeding conveyor assembly and the unloading conveyor assembly, further improving the stability of the circuit board's movement along the first direction and thus improving the reliability of the test results.

[0067] Specifically, the feeding conveying assembly further includes a first main pulley and a first driven pulley, which are spaced apart in the mounting frame 110 along a first direction. A feeding flat belt 210 is sleeved between the first main pulley and the first driven pulley. The first main pulley is driven to rotate by the feeding motor 230. The unloading conveying assembly further includes a second main pulley and a second driven pulley, which are spaced apart in the mounting frame 110 along a first direction. A unloading flat belt 510 is sleeved between the second main pulley and the second driven pulley. The second main pulley is driven to rotate by the unloading motor 530.

[0068] To prevent mistaken identification and enable operators to quickly identify the first and second ends of the test frame 100, such as when encountering 1 and... Figure 2 As shown, specifically, the first main pulley is positioned at a first end relatively close to the test frame 100, the first driven pulley is positioned at a first end relatively far from the test frame 100, the second main pulley is positioned at a second end relatively close to the test frame 100, the second driven pulley is positioned at a second end relatively far from the test frame 100, and the feed motor 230 and the discharge motor 530 are respectively positioned on both sides of the mounting frame 110 along the second direction.

[0069] If you encounter 1, Figure 2 and Figure 10As shown, specifically, the guide groove includes a first groove 121, which is located directly below the feed guide groove 221. Two first connecting plates 120 are detachably connected to the top of the mounting frame 110, corresponding to the feed end of the feed flat belt 210. The two first connecting plates 120 are spaced apart along a second direction, and the clamping area of ​​the two first connecting plates 120 forms the first groove 121. By placing the first groove 121 directly below the feed guide groove 221, during the process of conveying the circuit board along the first direction to the guide groove 310 from the top surface of the feed flat belt 210, the upper end of the circuit board is embedded and slidably inserted into the feed guide groove 221, and the lower end of the circuit board is embedded and slidably inserted into the first groove 121, ensuring the stability of the circuit board's movement along the first direction and preventing deviation. Simultaneously, by detachably connecting the two first connecting plates 120 to the top of the mounting frame 110, the two first connecting plates 120 enclosing the first groove 121 facilitates maintenance.

[0070] More specifically, the projection of the feed guide 221 along the vertical direction overlaps with the first groove 121.

[0071] like Figure 10 As shown, specifically, the first connecting plate 120 has a first through hole 122 extending vertically, through which a first bolt passes. The top of the mounting frame 110 has a first threaded hole corresponding to the first through hole 122, which matches the first bolt. When the first connecting plate 120 needs to be assembled onto the mounting frame 110, simply align the first through hole 122 with the corresponding first threaded hole vertically, then pass the shank of the first bolt through the first through hole 122 and tighten it into the corresponding first threaded hole. When the first connecting plate 120 needs to be removed from the mounting frame 110, simply unscrew the first bolt from the corresponding first threaded hole. The entire assembly and disassembly process is convenient.

[0072] The above is only a preferred method for the detachable connection between the first connecting plate 120 and the mounting frame 110. In other embodiments, the first connecting plate 120 can also be detachably connected to the top of the mounting frame 110 by means of snap-fit ​​and slot interlocking.

[0073] like Figure 1 , Figure 2 and Figure 10As shown, specifically, the guide groove includes a second groove 131, which is located directly below the unloading guide groove 521. Two second connecting plates 130 are detachably connected to the top of the mounting frame 110, corresponding to the position of the unloading flat belt 510. The two second connecting plates 130 are spaced apart along a second direction, and the clamping area of ​​the two second connecting plates 130 forms the second groove 131. By placing the second groove 131 directly below the unloading guide groove 521, during the unloading process of the circuit board being conveyed along the first direction from the top surface of the unloading flat belt 510, the upper end of the circuit board is embedded and slidably inserted into the unloading guide groove 521, and the lower end of the circuit board is embedded and slidably inserted into the second groove 131, ensuring the stability of the circuit board's movement along the first direction and preventing deviation. Simultaneously, by detachably connecting the two second connecting plates 130 to the top of the mounting frame 110, the two second connecting plates 130 form the second groove 131, facilitating maintenance.

[0074] More specifically, the projection of the feeding guide groove 521 along the vertical direction overlaps with the second groove 131.

[0075] like Figure 10 As shown, specifically, the second connecting plate 130 has a second through hole 132 extending vertically through it, which is used for the second bolt to pass through. The top of the mounting frame 110 has a second threaded hole corresponding to the position of the second through hole 132, and the second threaded hole matches the second bolt. When the second connecting plate 130 needs to be assembled onto the mounting frame 110, simply align the second through hole 132 with the corresponding second threaded hole vertically, then pass the shank of the second bolt through the second through hole 132 and tighten it into the corresponding second threaded hole. When the second connecting plate 130 needs to be removed from the mounting frame 110, simply unscrew the second bolt from the corresponding second threaded hole. The entire assembly and disassembly process is convenient.

[0076] The above is only a preferred method for the detachable connection between the second connecting plate 130 and the mounting frame 110. In other embodiments, the second connecting plate 130 can also be detachably connected to the top of the mounting frame 110 by means of snap-fit ​​and slot interlocking.

[0077] like Figure 1 , Figure 2 as well as Figures 7 to 9As shown, in some embodiments, the guide groove further includes a third groove 610 located directly below the guide groove 310. A second clamp 600 is provided on the mounting frame 110. The second clamp 600 includes a third clamping plate 620 and a fourth clamping plate 630 spaced apart along a second direction. The clamping areas of the third clamping plate 620 and the fourth clamping plate 630 form the third groove 610. The second clamp 600 has a clamping state in which the wall of the third groove 610 clamps the lower end of the circuit board, and a releasing state in which the lower end of the circuit board slides through the third groove 610. The third clamping plate 620 is fixedly connected to the mounting frame 110. The fourth clamping plate 630 is driven by a second power mechanism to move relative to the third clamping plate 620 along the second direction, thereby causing the second clamp 600 to switch between the clamping state and the releasing state. When the feeding conveyor assembly is activated, the circuit board is smoothly conveyed along the first direction to the set position in the guide groove 310 under the guidance of the feeding guide groove 221. At the same time, the lower end of the circuit board slides into the third groove 610 of the second clamp 600 in the released state. Then, the first clamp 300 and the second clamp 600 are switched to the clamping state at the same time to clamp and fix the upper and lower ends of the circuit board respectively, so as to improve the reliability of the test results. After the test is completed, the first clamp 300 and the second clamp 600 are switched to the released state at the same time. At this time, the guide groove 310 and the third groove 610 guide the upper and lower ends of the circuit board respectively, ensuring that the circuit board is smoothly conveyed along the first direction to the top surface of the unloading flat belt 510 under the drive of the top surface of the feeding flat belt 210, and is not prone to deviation, thus improving the unloading efficiency.

[0078] In specific applications, the third groove 610 can be located entirely above the feed flat belt 210, or partially above the feed flat belt 210 and partially above the unloading flat belt 510. In this embodiment, it is preferable to locate the third groove 610 entirely above the feed flat belt 210 to ensure that only the feeding conveyor assembly needs to be activated during the process of loading the circuit board to the testing station.

[0079] like Figures 7 to 9As shown, specifically, a second guide post 621 is provided on the side of the third clamping plate 620 facing the fourth clamping plate 630, and the fourth clamping plate 630 is slidably disposed on the second guide post 621 along a second direction; the second power mechanism includes a second push plate 710 and a second cylinder 720, the second push plate 710 is slidably disposed on the side of the third clamping plate 620 facing the fourth clamping plate 630, the second push plate 710 is located below the fourth clamping plate 630, and a second oblique guide post is provided through the second push plate 710 in a vertical direction. The second inclined guide hole 711 extends gradually towards the feed guide 220 along the first direction and is inclined away from the third clamping plate 620 along the second direction; the second cylinder 720 is disposed on the third clamping plate 620 along the first direction, the telescopic end of the second cylinder 720 is connected to the second push plate 710, and drives the second push plate 710 to move along the first direction; the lower end of the fourth clamping plate 630 is provided with a second push post 730, which is slidably inserted into the second inclined guide hole 711. A second inclined guide hole 711 is provided on the second push plate 710, and the lower end of the fourth clamping plate 630 is slidably inserted into the second inclined guide hole 711 via the second push post 730. When the second clamp 600 needs to be switched to the clamping state, the telescopic end of the second cylinder 720 extends, driving the second push plate 710 to move to the left along the first direction. At this time, the inner wall of the second inclined guide hole 711 applies a leftward force to the second push post 730, causing the second push post 730 to gradually move closer to the third clamping plate 620 along the arrangement direction of the second inclined guide hole 711, thereby causing the fourth clamping plate 630 to gradually move closer to the third clamping plate 620 along the second direction, thus switching the second clamping plate 600 to the clamping state. When in the released state, the telescopic end of the second cylinder 720 retracts, driving the second push plate 710 to move to the right along the first direction. At this time, the inner wall of the second oblique guide hole 711 applies a rightward force to the second push column 730, causing the second push column 730 to gradually move away from the third clamping plate 620 along the arrangement direction of the second oblique guide hole 711. This causes the fourth clamping plate 630 to gradually move away from the third clamping plate 620 along the second direction, thus switching the second clamp 600 to the released state. This achieves precise automatic switching between the clamping and released states of the second clamp 600 based on the arrangement of the second cylinder 720 along the first direction. This makes the size along the second direction smaller in this embodiment, making it particularly suitable for use environments where space is limited along the second direction. It is understood that the left and right directions mentioned here refer to... Figure 7 Described from a perspective.

[0080] like Figure 1 As shown, specifically, the second cylinder 720 is located on the side of the second push plate 710 that is relatively close to the second end of the frame.

[0081] Specifically, the first clamping plate 320 is located directly above the third clamping plate 620, and the second clamping plate 330 is located directly above the fourth clamping plate 630.

[0082] like Figure 9 As shown, specifically, the lower end face of the second push plate 710 is provided with a second elongated groove 712, which is parallel to the first direction. The third clamping plate 620 is provided with a second guide portion 622 on the side facing the second push plate 710, and the second guide portion 622 is slidably disposed within the second elongated groove 712 along the first direction. Through the guiding effect of the second guide portion 622 and the second elongated groove 712, the second push plate 710 moves smoothly along the first direction under the drive of the second cylinder 720, thereby ensuring accurate automatic switching of the second clamp 600 between the clamping state and the releasing state.

[0083] In practical applications, the number of the second elongated slots 712 is reasonably selected based on the dimensions of the second push plate 710 along the first direction, such as... Figure 8 As shown, in this embodiment, four second elongated grooves 712 are preferably provided.

[0084] Specifically, the third clamping plate 620 is connected to the first connecting plate 120 and the second connecting plate 130 at both ends along the first direction, such that the side wall of the third clamping plate 620 facing the fourth clamping plate 630 is flush with the surrounding wall of the first groove 121 and the second groove 131 along the first direction, so that the surrounding wall of the third groove 610 is always flush with the surrounding wall of the first groove 121 along the first direction, and the surrounding wall of the third groove 610 is always flush with the surrounding wall of the second groove 131 along the first direction, ensuring that the circuit board smoothly enters the third groove 610 from the first groove 121 and smoothly enters the second groove 131 from the third groove 610.

[0085] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A loading and unloading mechanism, applied to a flying probe testing machine, characterized in that, The loading and unloading mechanism includes: Test framework (100); A feeding conveyor assembly is disposed at the first end of the test frame (100) along a first direction. The feeding conveyor assembly includes a feeding flat belt (210) and a feeding guide (220). The feeding flat belt (210) has a top surface arranged parallel to the first direction. The top surface of the feeding flat belt (210) is used to carry and convey the circuit board. The feeding guide (220) is disposed directly above the feeding flat belt (210). The lower end of the feeding guide (220) is provided with a feeding guide groove (221). The feeding guide groove (221) is used for the upper end of the circuit board to be inserted and slid. A feeding and conveying assembly is disposed at the second end of the test frame (100) along the first direction, and the feeding and conveying assembly is used to carry and convey the circuit board; A first clamp (300) is disposed on the side of the feed guide (220) relatively close to the second end. The first clamp (300) is provided with a guide groove (310) communicating with the feed guide groove (221). The first clamp (300) has a clamping state in which the wall of the guide groove (310) clamps the upper end of the circuit board, and a releasing state in which the upper end of the circuit board slides through the guide groove (310).

2. The loading and unloading mechanism according to claim 1, characterized in that, The first clamp (300) includes a first clamping plate (320) and a second clamping plate (330) spaced apart along a second direction. The clamping areas of the first clamping plate (320) and the second clamping plate (330) form the guide groove (310). The first clamping plate (320) is connected to the feed guide (220). The second clamping plate (330) is driven by a first power mechanism to move relative to the first clamping plate (320) along the second direction, so as to drive the first clamp (300) to switch between a clamping state and a releasing state.

3. The loading and unloading mechanism according to claim 2, characterized in that, A first guide post (321) is provided on the side of the first clamping plate (320) facing the second clamping plate (330), and the second clamping plate (330) is slidably disposed on the first guide post (321) along a second direction; the first power mechanism includes: The first push plate (410) is slidably disposed on the side of the first clamping plate (320) facing the second clamping plate (330). The first push plate (410) is located above the second clamping plate (330). The first push plate (410) is provided with a first oblique guide hole (411) through it in the vertical direction. The first oblique guide hole (411) extends gradually closer to the feed guide (220) in the first direction and is inclined away from the first clamping plate (320) in the second direction. A first cylinder (420) is disposed on the first clamping plate (320) along the first direction. The telescopic end of the first cylinder (420) is connected to the first push plate (410) and drives the first push plate (410) to move along the first direction. The first push post (430) is disposed at the upper end of the second clamping plate (330), and the first push post (430) is slidably inserted into the first inclined guide hole (411).

4. The loading and unloading mechanism according to claim 3, characterized in that, The upper end face of the first push plate (410) is provided with a first elongated groove (412), which is parallel to the first direction; the first clamping plate (320) is provided with a first guide portion (322) on the side facing the first push plate (410), which is slidably disposed in the first elongated groove (412) along the first direction.

5. A loading and unloading mechanism according to any one of claims 2 to 4, characterized in that, The feeding conveyor assembly includes a feeding flat belt (510) and a feeding guide (520). The feeding flat belt (510) has a top surface arranged parallel to a first direction. The top surface of the feeding flat belt (510) is used to carry and convey the circuit board. The feeding guide (520) is located directly above the feeding flat belt (510). The lower end of the feeding guide (520) is provided with a feeding guide groove (521). The feeding guide groove (521) is connected to the guide groove (310). The feeding guide groove (521) is used for the upper end of the circuit board to be inserted and slid.

6. The loading and unloading mechanism according to claim 5, characterized in that, The test frame (100) is provided with an installation frame (110), which is arranged along a first direction. The feeding conveyor and the unloading conveyor are arranged on the installation frame (110). The top of the installation frame (110) is provided with a guide groove along the first direction. The guide groove is used for the lower end of the circuit board to be inserted and slid.

7. The loading and unloading mechanism according to claim 6, characterized in that, The guide groove includes a first groove (121), which is located directly below the feed guide groove (221). The top of the mounting frame (110) is detachably connected to two first connecting plates (120) at the position corresponding to the feed end of the feed flat belt (210). The two first connecting plates (120) are spaced apart along the second direction, and the clamping area of ​​the two first connecting plates (120) forms the first groove (121). And / or, the guide groove includes a second groove (131), the second groove (131) is located directly below the unloading guide groove (521), and the top of the mounting frame (110) is detachably connected to two second connecting plates (130) corresponding to the position of the unloading flat belt (510). The two second connecting plates (130) are spaced apart along a second direction, and the clamping area of ​​the two second connecting plates (130) forms the second groove (131).

8. The loading and unloading mechanism according to claim 7, characterized in that, The first connecting plate (120) has a first through hole (122) extending vertically, the first through hole (122) is used for the first bolt to pass through, and the top of the mounting frame (110) is provided with a first threaded hole corresponding to the position of the first through hole (122), the first threaded hole is matched with the first bolt; And / or, the second connecting plate (130) is provided with a second through hole (132) in the vertical direction, the second through hole (132) is used for the second bolt to pass through, and the top of the mounting frame (110) is provided with a second threaded hole corresponding to the position of the second through hole (132), the second threaded hole is matched with the second bolt.

9. The loading and unloading mechanism according to claim 6, characterized in that, The guide groove further includes a third groove (610), which is located directly below the guide groove (310). A second clamp (600) is provided on the mounting frame (110). The second clamp (600) includes a third clamping plate (620) and a fourth clamping plate (630) spaced apart along a second direction. The clamping area of ​​the third clamping plate (620) and the fourth clamping plate (630) forms the third groove (610). The second clamp (600) has a clamping state in which the wall of the third groove (610) clamps the lower end of the circuit board, and a releasing state in which the lower end of the circuit board slides through the third groove (610). The third clamping plate (620) is fixedly connected to the mounting frame (110). The fourth clamping plate (630) is driven by a second power mechanism to move relative to the third clamping plate (620) along the second direction, thereby driving the second clamp (600) to switch between the clamping state and the releasing state.

10. The loading and unloading mechanism according to claim 9, characterized in that, The third clamping plate (620) is provided with a second guide post (621) on the side facing the fourth clamping plate (630), and the fourth clamping plate (630) is slidably disposed on the second guide post (621) along the second direction; The second power mechanism includes: The second push plate (710) is slidably disposed on the side of the third clamping plate (620) facing the fourth clamping plate (630). The second push plate (710) is located below the fourth clamping plate (630). The second push plate (710) is provided with a second oblique guide hole (711) through it in the vertical direction. The second oblique guide hole (711) extends gradually closer to the feed guide (220) in the first direction and is inclined away from the third clamping plate (620) in the second direction. The second cylinder (720) is disposed on the third clamping plate (620) along the first direction. The telescopic end of the second cylinder (720) is connected to the second push plate (710) and drives the second push plate (710) to move along the first direction. The second push post (730) is located at the lower end of the fourth clamping plate (630), and the second push post (730) is slidably inserted into the second inclined guide hole (711).

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