A variable distance testing system and method

Abstract

This invention provides a variable-pitch testing system and method, comprising: a transmission mechanism including a horizontal transmission component and a lifting buffer component; the horizontal transmission component includes a horizontal transmission belt and a carrier plate, and the lifting buffer component is disposed at the end of the horizontal transmission belt; a variable-pitch transition mechanism including a fixed support and a support platform; a material transfer mechanism disposed between the transmission mechanism and the variable-pitch transition mechanism; a testing mechanism having multiple fixed test points internally; and a transfer mechanism including a transfer module and a transfer component, the transfer component being connected to the transfer module and including multiple transfer nozzles, the spacing between the multiple transfer nozzles being the same as the spacing between the fixed test points. This invention overcomes the problem of insufficient matching of mechanism positions during the testing process, which affects testing efficiency. Compared with conventional testing technologies, this application has advantages such as strong controllability, wide applicability, strong compatibility, and high degree of automation, significantly improving the testing efficiency and quality of components.

Description

Technical Field

[0001] This invention relates to the field of component testing technology, specifically to a variable-range testing system and method. Background Technology

[0002] In the field of electronic component manufacturing and testing, the electrical performance testing of components often relies on specialized testing equipment such as ICT devices. The core testing points of such equipment are preset fixed structures, and their spacing parameters are usually not flexibly adjustable after the equipment leaves the factory to adapt to the requirements of specific testing standards.

[0003] In actual production, there are various types of components, and the carriers for different types of components have significant differences in structural design and size specifications. At the same time, during the batch transfer of components, the structural limitations of the transfer path and the transfer mechanism make it difficult to accurately match the spacing of the components in batch transfer with the fixed test point spacing of the testing equipment.

[0004] This lack of compatibility means that components transported in batches cannot be directly connected to testing equipment for efficient testing. They must be transported in batches and then individually transferred to the testing equipment. This process not only prolongs the testing process but also reduces the overall transport efficiency, becoming a key bottleneck that restricts the improvement of batch testing efficiency for components and makes it difficult to meet the high-efficiency testing needs in large-scale production scenarios. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that components transported in batches cannot be connected to testing equipment in the prior art, and to provide a variable distance testing system and method.

[0006] To address the aforementioned technical problems, this invention provides a variable-pitch testing system, comprising: a transmission mechanism including a horizontal transmission component and a lifting buffer component; the horizontal transmission component including a horizontal transmission belt and a carrier tray; the horizontal transmission belt extending along a first direction; the carrier tray disposed on the horizontal transmission belt; the component to be tested disposed in the carrier tray; and the lifting buffer component disposed at the end of the horizontal transmission belt; a variable-pitch transition mechanism including a fixed support and multiple support platforms; the fixed support having a variable-pitch module extending horizontally; the multiple support platforms being slidably connected to the variable-pitch modules; each support platform accommodating one component to be tested to adjust the spacing between the components; and a material transfer mechanism. The transfer mechanism is disposed between the transmission mechanism and the variable-pitch transition mechanism, and is used to transfer the component to be tested between the transmission mechanism and the variable-pitch transition mechanism; the testing mechanism is located on one side of the horizontal transmission belt and has multiple fixed test points inside; the transfer mechanism includes a transfer module and a transfer component. The transfer module is disposed between the testing mechanism and the horizontal transmission belt, extends along the first direction, and its end extends to one side of the variable-pitch transition mechanism. The transfer component is slidably connected to the transfer module and includes multiple transfer nozzles to transfer the component between the testing mechanism and the variable-pitch transition mechanism, wherein the spacing between the multiple transfer nozzles is the same as the spacing between the fixed test points.

[0007] In one embodiment of the present invention, the transmission mechanism includes two lifting buffer components, which are respectively disposed at both ends of the horizontal transmission belt to load and unload the tray containing the components; corresponding to both ends of the horizontal transmission belt, there are two material transfer mechanisms, two pitch transition mechanisms and two transfer mechanisms.

[0008] In one embodiment of the present invention, the lifting buffer assembly includes a buffer frame, a lifting frame, and two docking conveyor belts. The buffer frame includes a first width adjustment module and a lifting module. The first width adjustment module extends along a second direction. The two docking conveyor belts are slidably connected to the first width adjustment module to move relatively closer to / away from each other. The docking conveyor belts extend along the first direction and can dock with an external material tray supply mechanism. The lifting module extends in a vertical direction. The lifting frame is slidably connected to the lifting module and moves up and down above the first width adjustment module.

[0009] In one embodiment of the present invention, the horizontal transmission assembly includes a transmission frame and two horizontal transmission belts. The transmission frame includes a second width adjustment module that extends along a second direction. The two horizontal transmission belts are slidably connected to the second width adjustment module so as to be relatively close to / away from each other. The upper edge of the carrier in the second direction is connected to the two horizontal transmission belts respectively.

[0010] In one embodiment of the present invention, the transmission mechanism further includes at least one tray-splitting assembly. The tray-splitting assembly includes a tray-splitting connecting frame, a horizontal tray-splitting carriage, a vertical tray-splitting carriage, and at least one tray-splitting claw disposed on both sides of the horizontal transmission belt. The tray-splitting connecting frame is connected to the transmission frame in the horizontal transmission assembly. The horizontal tray-splitting carriage is slidably connected to the tray-splitting connecting frame along a second direction. The vertical tray-splitting carriage is slidably connected to the horizontal tray-splitting carriage along a vertical direction. At least one of the tray-splitting claws is fixed to the vertical tray-splitting carriage and extends toward the horizontal transmission belt to move to the bottom of the tray and lift the tray.

[0011] In one embodiment of the present invention, the material transfer mechanism includes a robotic arm, a rotary joint, a mounting frame, a navigation camera, and multiple suction nozzle assemblies. The rotary joint is connected to the moving end of the robotic arm, and the mounting frame is connected to the rotary joint to rotate around a rotation center line. The navigation camera and the suction nozzle assemblies are respectively connected to the mounting frame, wherein the multiple suction nozzle assemblies respectively adsorb components.

[0012] In one embodiment of the present invention, the mounting frame is provided with a plurality of nozzle adjustment modules, all of which extend along the height direction of the mounting frame. A plurality of nozzle assemblies are respectively arranged corresponding to the plurality of nozzle adjustment modules. Any nozzle assembly includes a docking nozzle, an elastic element, and an adjustment frame. The adjustment frame is slidably connected to the corresponding nozzle adjustment module. The docking nozzle is passed through and connected to the adjustment frame. The elastic element is disposed between the docking nozzle and the adjustment frame.

[0013] In one embodiment of the present invention, the variable pitch transition mechanism further includes a component detector and a spacing detector. The support platform includes a support carriage and a quick-change tray. The support carriage is slidably connected to the variable pitch module. The quick-change tray is connected to the support carriage and has a component receiving slot thereon. The component is located in the component receiving slot. The component detector and the spacing detector are respectively disposed on the support carriage. The component detector is disposed facing the component receiving slot, and the spacing detector is disposed facing the adjacent support platform to detect the spacing distance between adjacent support platforms.

[0014] In one embodiment of the present invention, the transfer assembly includes a transfer base frame, a transfer lifting frame, and a plurality of transfer nozzles. The transfer base frame is slidably connected to the transfer module and has at least one positioning module extending in a vertical direction. The transfer lifting frame is slidably connected to the positioning module and includes a docking plate. The bottom of the docking plate is provided with a positioning pin, which can be inserted into the positioning hole of the carrier plate.

[0015] In one embodiment of the present invention, the docking plate is provided with a clearance opening extending through its thickness direction in the middle, the transfer lifting frame is provided with a plurality of fine adjustment modules extending in the vertical direction, the docking plate is correspondingly disposed below the fine adjustment modules, the transfer suction nozzle is slidably connected to the fine adjustment modules, and can pass through the clearance opening to contact the components.

[0016] In one embodiment of the present invention, the variable-distance testing system further includes a housing, a machine base, a control mechanism, an identification mechanism, and a sample stage. The transfer mechanism, the material handling mechanism, the variable-distance transition mechanism, the transport mechanism, and the sample stage are all disposed on the machine base and located inside the housing. The identification mechanism is located on one side of the material handling mechanism and includes a top identification camera, a bottom identification camera, and a barcode scanning NG buffer. The top identification camera is connected to the housing and located inside the housing. The bottom identification camera is connected to the machine base. The sample stage and the barcode scanning NG buffer are both located within the working range of the material handling mechanism.

[0017] The present invention also provides a variable-pitch testing method, which performs variable-pitch testing on components using the aforementioned variable-pitch testing system. The method includes: Step S1, moving a tray containing multiple components to be tested into the working range of a transfer mechanism; Step S2, moving the multiple components to be tested into a variable-pitch transition mechanism via the transfer mechanism, wherein during the movement, the variable-pitch transition mechanism adjusts the spacing between multiple support platforms to accommodate the components to be tested; Step S3, adjusting the spacing between the multiple support platforms so that the spacing between two adjacent support platforms is the same as the spacing between multiple fixed test points in the testing mechanism; Step S4, using a transfer mechanism to move the multiple components after the variable-pitch test into the testing mechanism in batches for performance testing.

[0018] In one embodiment of the present invention, step S2 specifically includes: step S21, taking a picture of the position of the carrier tray by a navigation camera on the transfer mechanism to navigate the movement path of the suction nozzle assembly on it; step S22, adsorbing multiple components to be tested by the suction nozzle assembly and moving them to the identification mechanism for barcode scanning test to identify the spacing between the multiple components to be tested; step S23, after the barcode scanning test result is transmitted to the variable distance transition mechanism, the multiple carrier platforms adjust their adjacent spacing to support the multiple components to be tested; step S24, the multiple carrier platforms drive the components to be tested on them to move synchronously until the spacing between two adjacent carrier platforms is the same as the spacing between multiple fixed test points in the testing mechanism.

[0019] The technical solution of the present invention has the following advantages over the prior art: The variable-pitch testing system and method of the present invention uses a transmission mechanism to transport a tray containing components, and a transfer mechanism to transfer the loaded components in batches to a variable-pitch transition mechanism. The variable-pitch transition mechanism makes the spacing between the components to be tested the same as the spacing between multiple fixed test points in the testing mechanism. This allows the variable-pitch components to be moved directly to the testing mechanism via the transfer mechanism, thereby overcoming the problem of insufficient matching of mechanism positions during the testing process, which affects the testing efficiency.

[0020] Compared with conventional testing technologies at present, this application has the advantages of strong controllability, wide applicability, strong compatibility and high degree of automation, which significantly improves the testing efficiency and quality of components and has broad application prospects in this industry. Attached Figure Description

[0021] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the variable-distance testing system in a preferred embodiment of the present invention; Figure 2 yes Figure 1 The diagram shows the internal structure of the variable pitch testing system. Figure 3 It is part Figure 2 The diagram shows the structure of the variable-range testing system. Figure 4 yes Figure 2 A three-dimensional structural diagram of the transmission mechanism in the variable-gap test system is shown. Figure 5 yes Figure 4 Enlarged structural diagram of point A in the transmission mechanism shown; Figure 6 yes Figure 2 A three-dimensional structural diagram of the material transfer mechanism in the variable-distance testing system shown. Figure 7 yes Figure 6 Enlarged structural diagram at point B; Figure 8 yes Figure 3 Enlarged structural diagram at point C; Figure 9 yes Figure 2 A three-dimensional structural diagram of the transfer mechanism in the variable pitch test system is shown. Figure 10 yes Figure 2 The diagram shows a three-dimensional structural schematic of the transfer component in the variable pitch test system.

[0023] Explanation of reference numerals in the accompanying drawings: 100, Transmission mechanism; 110, Lifting and buffer assembly; 111, Buffer frame; 1111, First width adjustment module; 1112, Lifting module; 112, Docking conveyor belt; 113, Lifting frame; 120, Horizontal transmission assembly; 121, Transmission frame; 1211, Second width adjustment module; 122, Horizontal transmission belt; 123, Carrier tray; 130, Distributor tray assembly; 131, Distributor tray connecting frame; 132, Horizontal distributor tray slide; 133, Vertical distributor tray slide; 134, Distributor tray claw; 200, Transfer mechanism; 210, Robotic arm; 220, Rotary joint; 230, Mounting frame; 231, Nozzle adjustment module; 240, Nozzle assembly; 241, Docking suction head; 242, Elastic element; 243, Adjustment frame; 250, Navigation camera; 300, Identification mechanism; 3 10. Top recognition camera; 320. Bottom recognition camera; 330. Barcode scanning NG buffer station; 400. Variable pitch transition mechanism; 410. Fixed bracket; 411. Variable pitch module; 420. Carrier platform; 421. Carrier slide; 422. Quick-change tray; 430. Component detector; 440. Spacing detector; 500. Transfer mechanism; 510. Transfer module; 520. Transfer assembly; 521. Transfer base frame; 5211. Positioning module; 522. Transfer lifting frame; 5221. Docking plate; 5222. Fine adjustment module; 5223. Positioning pin; 5224. Clearance port; 523. Transfer nozzle; 600. Testing mechanism; 700. Sample stage; 800. Machine base; 900. Housing; 1001. Rotation center line; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0025] Example 1:

[0026] See Figures 1 to 10 As shown, this embodiment provides a variable-pitch testing system, which includes: a transmission mechanism 100, which includes a horizontal transmission component 120 and a lifting buffer component 110. The horizontal transmission component 120 includes a horizontal transmission belt 122 and a carrier tray 123. The horizontal transmission belt 122 extends along a first direction X. The carrier tray 123 is disposed on the horizontal transmission belt 122, and the component to be tested is disposed in the carrier tray 123. The lifting buffer component 110 is disposed at the ends of the horizontal transmission belt 122. A variable-pitch transition mechanism 400 includes a fixed bracket 410 and a plurality of carrier platforms 420. The fixed bracket 410 is provided with a variable-pitch module 411 extending in a horizontal direction. The plurality of carrier platforms 420 are slidably connected to the variable-pitch module 411. Each carrier platform 420 is used to accommodate one component to be tested to adjust the spacing of the component to be tested. A material transfer mechanism 200. The material transfer mechanism 200 is disposed between the transmission mechanism 100 and the variable-pitch transition mechanism 400, and is used to transfer the component to be tested between the transmission mechanism 100 and the variable-pitch transition mechanism 400; the testing mechanism 600 is located on one side of the horizontal conveyor belt 122, and has multiple fixed test points inside; the transfer mechanism 500 includes a transfer module 510 and a transfer component 520. The transfer module 510 is disposed between the testing mechanism 600 and the horizontal conveyor belt 122, extends along the first direction X, and its end extends to one side of the variable-pitch transition mechanism 400. The transfer component 520 is slidably connected to the transfer module 510, and includes multiple transfer nozzles 523 to transfer components between the testing mechanism 600 and the variable-pitch transition mechanism 400, wherein the spacing between the multiple transfer nozzles 523 is the same as the spacing between the fixed test points.

[0027] The variable-pitch testing system and method of this invention uses a transmission mechanism 100 to transport a carrier tray 123 containing components. A transfer mechanism 200 then transfers the loaded components in batches to a variable-pitch transition mechanism 400. This transition mechanism 400 ensures that the spacing between the components to be tested is the same as the spacing between multiple fixed test points in the testing mechanism 600. This allows the variable-pitch components to be directly moved to the testing mechanism 600 via a transfer mechanism 500, overcoming the problem of insufficient matching between mechanism positions affecting testing efficiency. It should be noted that, for ease of description, this embodiment defines the length direction of the transmission mechanism 100 as the first direction X, the width direction as the second direction Y, and the height direction (vertical direction) of the system as the third direction Z. The first direction X, the second direction Y, and the third direction Z are mutually perpendicular, and the first direction X and the second direction Y are located in the same plane.

[0028] In this embodiment, the transmission mechanism 100 undertakes the core transmission task of components from initial loading to post-test unloading. The horizontal transmission component 120 and the lifting buffer component 110 formed an orderly material flow channel. The horizontal transmission component 120 consists of a horizontal transmission belt 122 extending along the first direction X and a carrier tray 123 disposed thereon. The carrier tray 123, as the direct bearing structure of the component to be tested, can provide a stable placement space for the component, ensuring that the component is stable in position during horizontal transmission and avoiding posture deviation caused by shaking. The extension design of the horizontal transmission belt 122 along a fixed direction ensures the directionality and continuity of material transmission, enabling the carrier tray 123 to be accurately delivered to the designated position.

[0029] Furthermore, the horizontal transmission assembly 120 in this embodiment includes a transmission frame 121 and two horizontal transmission belts 122. The transmission frame 121 includes a second width adjustment module 1211, which extends along the second direction Y. The two horizontal transmission belts 122 are slidably connected to the second width adjustment module 1211, respectively, so as to be relatively close to / away from each other. The upper edge of the carrier 123 in the second direction Y is respectively connected to the two horizontal transmission belts 122.

[0030] As a core component of the transmission mechanism 100 of the variable pitch test system, the horizontal transmission assembly 120 specifically includes a transmission frame 121 and two horizontal transmission belts 122. The transmission frame 121 integrates a second width adjustment module 1211 extending along the second direction Y. The second width adjustment module 1211 provides a sliding mounting base and drive support for the two horizontal transmission belts 122, enabling the two horizontal transmission belts 122 to form a sliding connection with the second width adjustment module 1211 respectively, and to move relatively closer or further apart under the action of the second width adjustment module 1211. This structural design allows the horizontal transmission assembly 120 to adapt to different sized carrier trays 123 by adjusting the distance between the two horizontal transmission belts 122, thereby greatly improving the compatibility of the horizontal transmission assembly 120 with carrier trays 123 of different specifications, and providing flexible transmission guarantee for carrying different types of test components.

[0031] In this embodiment, the lifting buffer assembly 110 is located at the end of the horizontal conveyor belt 122. Its core function is to realize the temporary storage of materials and the connection between loading and unloading. It can hold multiple stacked trays 123. Furthermore, the conveying mechanism 100 in this embodiment includes two lifting buffer assemblies 110, which are respectively located at both ends of the horizontal conveyor belt 122 to load and unload the trays 123 containing components. This end-to-end division of labor design allows the loading and unloading processes to be carried out independently and synchronously, which not only improves the processing efficiency of batch materials, but also constructs a complete material flow closed loop. At the same time, the carrying capacity of multiple stacked trays 123 also meets the needs of batch transfer in large-scale production, significantly enhancing the practicality and adaptability of the conveying mechanism 100.

[0032] Specifically, the lifting and buffer assembly 110 in this embodiment includes a buffer frame 111, a lifting frame 113, and two docking conveyor belts 112. The buffer frame 111 includes a first width adjustment module 1111 and a lifting module 1112. The first width adjustment module 1111 extends along the second direction Y. The two docking conveyor belts 112 are slidably connected to the first width adjustment module 1111 to move relatively closer to / away from each other. The docking conveyor belts 112 extend along the first direction X and can dock with an external material tray supply mechanism. The lifting module 1112 extends in the vertical direction. The lifting frame 113 is slidably connected to the lifting module 1112 and moves up and down above the first width adjustment module 1111. The buffer frame 111 integrates a first width adjustment module 1111 extending along the second direction Y and a lifting module 1112 extending along the vertical direction. Two docking conveyor belts 112 are slidably connected to the first width adjustment module 1111, and can move relatively closer or further away under the drive of the first width adjustment module 1111. The docking conveyor belt 112 extends along the first direction X, and can form a precise docking with the external material tray supply mechanism. The lifting frame 113 is slidably connected to the lifting module 1112, and can move up and down along the vertical direction above the first width adjustment module 1111. Through the coordination of width adjustment, docking and lifting actions, the lifting buffer component 110 can not only adapt to the carrier trays 123 with different sizes in the second direction Y, but also realize the smooth transfer of the carrier trays 123 between the external material tray supply mechanism and the horizontal conveyor belt 122, further ensuring the smoothness and compatibility of the loading and unloading process.

[0033] Furthermore, the transmission mechanism 100 in this embodiment also includes at least one tray-splitting assembly 130. The tray-splitting assembly 130 includes a tray-splitting connecting frame 131, a horizontal tray-splitting carriage 132, a vertical tray-splitting carriage 133, and at least one tray-splitting claw 134 disposed on both sides of the horizontal transmission belt 122. The tray-splitting connecting frame 131 is connected to the transmission frame 121 in the horizontal transmission assembly 120. The horizontal tray-splitting carriage 132 is slidably connected to the tray-splitting connecting frame 131 along the second direction Y. The vertical tray-splitting carriage 133 is slidably connected to the horizontal tray-splitting carriage 132 along the vertical direction. At least one tray-splitting claw 134 is fixedly connected to the vertical tray-splitting carriage 133 and extends toward the horizontal transmission belt 122 to move to the bottom of the tray 123 and lift the tray 123. The tray-splitting connecting frame 131 is located on both sides of the horizontal conveyor belt 122, with one end firmly connected to the conveyor frame 121 of the horizontal conveyor assembly 120, providing reliable installation support for the entire tray-splitting assembly 130 and ensuring structural stability during subsequent operations. The horizontal tray-splitting carriage 132 is slidably connected to the tray-splitting connecting frame 131 along the second direction Y, allowing subsequent components to move flexibly along the second direction Y, realizing the horizontal position adjustment of the tray-splitting claw 134 to adapt to trays 123 of different dimensions in the second direction Y. The vertical tray-splitting carriage 133 is slidably connected to the horizontal tray-splitting carriage 132 along the vertical direction. The device can drive the tray-separating claw 134 to move up and down, providing power support for lifting and lowering the tray 123. At least one tray-separating claw 134 is fixed to the vertical tray-separating carriage 133 and extends towards the horizontal conveyor belt 122. Under the coordinated drive of the horizontal tray-separating carriage 132 and the vertical tray-separating carriage 133, it can accurately move to the bottom of the target tray 123. Through the lifting action, it separates the tray 123 stacked on top from other stacked trays 123 or adjusts the height of the tray 123, avoiding stacking jams during the transport of the tray 123 and ensuring the orderly flow of the tray 123 on the horizontal conveyor belt 122. Specifically, this embodiment provides three tray-separating assemblies 130, corresponding to the two ends and the middle of the horizontal conveyor belt 122, to assist in the loading, unloading and buffering of the tray 123. In different embodiments, the tray-separating assemblies 130 can be configured in other positions or set in other quantities according to actual usage requirements. This invention does not impose specific limitations on this.

[0034] See Figure 6 and Figure 7As shown, the material transfer mechanism 200 acts as a bridge for material transfer between mechanisms. As a key hub connecting the two core mechanisms, it can accurately identify the position of the carrier 123 in the transmission mechanism 100 and the idle state of the bearing platform 420 in the pitch transition mechanism 400. Through mechanical action, it transfers the components to be tested in batches from the carrier 123 on the horizontal conveyor belt 122 to the bearing platform 420 of the pitch transition mechanism 400. During this process, the material transfer mechanism 200 must ensure the stability of the posture and the accuracy of the position of the components during the transfer to avoid damage or positional deviation of the components due to the transfer operation, and ensure the accuracy of subsequent pitch adjustment. Its transfer efficiency directly affects the batch processing capacity of the entire system and is an important guarantee for the smooth transition of materials from the transmission link to the pitch transition link.

[0035] Furthermore, the material transfer mechanism 200 in this embodiment includes a robotic arm 210, a rotary joint 220, a mounting frame 230, a navigation camera 250, and multiple suction nozzle assemblies 240. The rotary joint 220 is connected to the moving end of the robotic arm 210, and the mounting frame 230 is connected to the rotary joint 220 to rotate around the rotation center line 1001. The navigation camera 250 and the suction nozzle assemblies 240 are respectively connected to the mounting frame 230, wherein the multiple suction nozzle assemblies 240 adsorb components. The robotic arm 210 is the power and motion execution basis of the material transfer mechanism 200. It has multi-degree-of-freedom motion capability and can drive the entire end effector structure to move flexibly between the transmission mechanism 100 and the variable pitch transition mechanism 400. Through preset programs or real-time control, it can achieve rapid positioning of target components and provide stable motion support for subsequent adsorption and transfer actions. Its motion accuracy directly determines the overall transfer accuracy of the material transfer mechanism 200. The rotary joint 220 is connected to the moving end of the robotic arm 210. As the core component for realizing the rotation function, it provides the mounting frame 230 with the ability to rotate around the fixed rotation center line 1001. This rotation function allows the suction nozzle assembly 240 and the navigation camera 250 on the mounting frame 230 to flexibly adjust their posture according to the position and angle of the carrier plate 123 and the support platform 420, avoiding interference with other mechanisms during the transfer process. At the same time, it ensures that the suction nozzle assembly 240 can fit the surface of the component at the best angle, improving the adsorption stability.

[0036] Mounting bracket 230 serves as the integrated carrier for all end-function components. One end is securely connected to rotary joint 220, transmitting the power of robotic arm 210 and the rotational motion of rotary joint 220 to navigation camera 250 and suction nozzle assembly 240. It also provides a reliable mounting reference for both, ensuring the relative positions of each component are fixed, thus providing structural support for navigation, positioning, and precise adsorption. Navigation camera 250, connected to mounting bracket 230, is the visual core of transfer mechanism 200. By capturing images of the component distribution in carrier tray 123 and combining image recognition and positioning technology, it accurately obtains the specific coordinates of each component to be transferred and feeds this coordinate information back to the control system in real time. This provides precise positional basis for the movement of robotic arm 210, rotary joint 220, and suction action of suction nozzle assembly 240, effectively compensating for positioning errors caused by placement deviations of carrier tray 123 or slight component offsets.

[0037] Multiple suction nozzle assemblies 240, acting as actuators that directly contact the components, are all connected to the mounting bracket 230 and linked with the positioning information from the navigation camera 250. After the navigation camera 250 completes positioning, the robotic arm 210 and the rotary joint 220 work together to adjust the posture of the mounting bracket 230, aligning each suction nozzle assembly 240 with its corresponding component to be tested. Subsequently, the suction nozzle assembly 240 forms a stable fit with the component surface through negative pressure adsorption, achieving a firm grip on the component. The arrangement of multiple suction nozzle assemblies 240 allows the transfer mechanism 200 to simultaneously transfer batches of components, significantly improving transfer efficiency. Furthermore, its precise coordination with the navigation camera 250 ensures that each suction nozzle assembly 240 accurately corresponds to the target component, preventing misalignment or missed suction.

[0038] In actual operation, the robotic arm 210 moves the mounting frame 230 above the carrier tray 123 of the transfer mechanism 100. The navigation camera 250 quickly captures and positions the component to be tested in the carrier tray 123. The control system drives the rotary joint 220 to adjust the angle of the mounting frame 230 based on the positioning information, while simultaneously controlling the robotic arm 210 to fine-tune its position so that multiple suction nozzle assemblies 240 are precisely aligned with each component and complete the adsorption. Subsequently, the robotic arm 210 moves the suction nozzle assembly 240 with the adsorbed component above the support platform 420 of the variable pitch transition mechanism 400. The rotary joint 220 adjusts its posture again to match the placement position of the component with that of the support platform 420. Finally, the suction nozzle assembly 240 releases the negative pressure, stably placing the component on the support platform 420, completing a full transfer process. Through the coordinated operation of various structures, the transfer mechanism 200 effectively ensures the stability of the component's posture and the accuracy of its position during the cross-mechanism transfer process, laying a good foundation for the subsequent spacing adjustment work of the variable pitch transition mechanism 400, thereby improving the operating efficiency of the entire variable pitch testing system.

[0039] Furthermore, the mounting frame 230 is provided with a plurality of nozzle adjustment modules 231, all of which extend along the height direction of the mounting frame 230. A plurality of nozzle assemblies 240 are respectively provided corresponding to the plurality of nozzle adjustment modules 231. Any nozzle assembly 240 includes a docking nozzle 241, an elastic element 242, and an adjustment frame 243. The adjustment frame 243 is slidably connected to the corresponding nozzle adjustment module 231. The docking nozzle 241 is passed through and connected to the adjustment frame 243. The elastic element 242 is disposed between the docking nozzle 241 and the adjustment frame 243.

[0040] Specifically, multiple suction nozzle assemblies 240, as actuating components that directly contact the components, are all connected to the mounting frame 230 via suction nozzle adjustment modules 231, and are linked with the positioning information of the navigation camera 250. To further improve the adaptability and stability of the adsorption, the mounting frame 230 is provided with multiple suction nozzle adjustment modules 231, all of which extend along the height direction of the mounting frame 230, with each suction nozzle assembly 240 corresponding to one of the multiple suction nozzle adjustment modules 231. Each nozzle assembly 240 includes a docking nozzle 241, an elastic element 242, and an adjustment frame 243. The adjustment frame 243 is slidably connected to the corresponding nozzle adjustment module 231 and can move flexibly along the height direction of the adjustment module to achieve precise adjustment of the height of the docking nozzle 241. The docking nozzle 241 is connected to the adjustment frame 243 and is the part that directly contacts the component. Its structure is adapted to the surface shape of the component to ensure adsorption fit. The elastic element 242 is set between the docking nozzle 241 and the adjustment frame 243. It can provide a buffering effect during adsorption to avoid damage caused by rigid contact between the docking nozzle 241 and the component. At the same time, it can compensate for the small undulations or height deviations of the component surface through its own elastic deformation to ensure that the docking nozzle 241 is always in close contact with the component surface. After the navigation camera 250 completes its positioning, the robotic arm 210 and the rotary joint 220 work together to adjust the posture of the mounting bracket 230. The adjustment bracket 243 is adjusted to the height of the nozzle adjustment module 231, so that the docking nozzles 241 of each nozzle assembly 240 are precisely aligned with the corresponding components to be tested. Subsequently, the docking nozzles 241 form a stable fit with the surface of the component through negative pressure adsorption and other methods, achieving a firm grip on the component. The arrangement of multiple nozzle assemblies 240 enables the transfer mechanism 200 to transfer batches of components simultaneously, greatly improving the transfer efficiency. Its precise cooperation with the navigation camera 250 and the nozzle adjustment module 231 ensures that each nozzle assembly 240 can accurately and safely correspond to the target component, avoiding misalignment, missed suction, or damage to the component.

[0041] See Figure 8As shown, the pitch transition mechanism 400 in this embodiment is the core functional unit for solving the problem of workstation spacing matching. Through structural design, it achieves precise adjustment of the spacing between the components under test. The fixed bracket 410 of this mechanism provides a stable mounting foundation for the entire pitch transition structure, ensuring the stability of the structure during the pitch transition process. The pitch transition module 411, extending horizontally on the fixed bracket 410, provides guidance and driving support for the sliding of the support platform 420. Multiple support platforms 420 are slidably connected to the pitch transition module 411, and each support platform 420 is specifically designed for… Each component can be accommodated in a one-to-one correspondence bearing method, which makes the spacing adjustment of a single component more precise and controllable. After the component is transferred to the bearing platform 420, the variable pitch module 411 can drive multiple bearing platforms 420 to slide synchronously or differently in the horizontal direction. In this way, according to the spacing requirements of the fixed test points in the test mechanism 600, the component to be tested on the bearing platform 420 is adjusted to the required spacing, laying the foundation for the subsequent precise docking with the test mechanism 600. This completely breaks the limitation of fixed component spacing in traditional testing that cannot be adapted to the test points.

[0042] Furthermore, the variable pitch transition mechanism 400 in this embodiment also includes a component detector 430 and a spacing detector 440. The support platform 420 includes a support slide 421 and a quick-change tray 422. The support slide 421 is slidably connected to the variable pitch module 411, and the quick-change tray 422 is connected to the support slide 421 and has a component receiving slot thereon. The components are located in the component receiving slot. The component detector 430 and the spacing detector 440 are respectively disposed on the support slide 421. The component detector 430 is disposed towards the component receiving slot, and the spacing detector 440 is disposed towards its adjacent support platform 420 to detect the spacing distance between adjacent support platforms 420. The support carriage 421, as the core of the support platform 420, is slidably connected to the pitch module 411. Driven by the pitch module 411, it can move smoothly horizontally, providing basic motion support for component spacing adjustment. The quick-change tray 422 is connected above the support carriage 421. Its component receiving slots precisely match the components to be tested, providing a stable placement space and preventing component shifting or falling off during spacing adjustment. The quick-change design allows for rapid adaptation to various component models by replacing different sized trays 123, significantly improving the mechanism's versatility. The component detector 430 is fixed to the support carriage 421, with its detection direction facing the component receiving slot, enabling real-time detection of successful component placement within the slot. The system monitors the placement of components, ensuring their proper orientation and position. If any abnormalities such as empty slots or misalignments are detected, signals are immediately fed back to the control mechanism to prevent subsequent invalid spacing adjustments. A spacing detector 440, also mounted on the support carriage 421, faces the adjacent support platform 420. Its core function is to accurately collect the spacing data between the current support platform 420 and its adjacent support platforms 420, and transmit this data to the control mechanism in real time. This data is then compared with the preset spacing parameters of the fixed test points in the test mechanism 600, providing precise feedback for the variable-pitch module 411 to drive the support carriage 421 to slide, ensuring that the final adjusted spacing of multiple support platforms 420 perfectly matches the test point spacing.

[0043] In this embodiment, the testing mechanism 600 is preferably an ICT tester (In-Circuit Tester), which is used to test the electrical parameters of components. This invention does not limit the specific type or number of these testers. Specifically, the multiple fixed test points inside the testing mechanism are the core components for completing the electrical performance test. These fixed test points have a fixed spacing preset according to the test standard, providing precise test docking positions for the components. Once the spacing of the component to be tested is adjusted to match the spacing of the fixed test points, it can be directly docked with the test points to complete the test without additional position adjustment, greatly improving the convenience of the test. The layout design of the testing mechanism 600 located on one side of the horizontal conveyor belt 122 provides reasonable spatial conditions for the operation of the transfer mechanism 500, facilitating the rapid transfer of components between the variable-pitch transition mechanism 400 and the testing mechanism 600.

[0044] See Figure 9 and Figure 10 As shown, the transfer mechanism 500, as a key transfer unit connecting the pitch transition mechanism 400 and the testing mechanism 600, is responsible for accurately transporting the components with adjusted pitch to the testing mechanism 600. Its transfer module 510 and transfer assembly 520 form a highly efficient transfer execution structure. The transfer module 510 is positioned between the testing mechanism 600 and the horizontal conveyor belt 122 and extends along the first direction X. Its design, with its end extending to one side of the pitch transition mechanism 400, ensures that the transfer range completely covers the discharge end of the pitch transition mechanism 400 and the inlet end of the testing mechanism 600. This design also serves as the transfer assembly. 520 provides sufficient space for movement and precise guidance. The transfer component 520, which is slidably connected to the transfer module 510, uses multiple transfer nozzles 523 to grasp and place components. The spacing between the multiple transfer nozzles 523 is consistent with the spacing of the fixed test positions of the test mechanism 600. This structural design allows the transfer component 520 to directly and accurately place the components on the fixed test positions of the test mechanism 600 after grasping the components with adjusted spacing from the variable pitch transition mechanism 400, without the need for secondary spacing adjustment, thus achieving seamless connection between the variable pitch stage and the test stage.

[0045] Specifically, the transfer assembly 520 in this embodiment includes a transfer base frame 521, a transfer lifting frame 522, and multiple transfer nozzles 523. The transfer base frame 521 is slidably connected to the transfer module 510 and has at least one positioning module 5211 extending vertically on it. The transfer lifting frame 522 is slidably connected to the positioning module 5211 and includes a docking plate 5221. The bottom of the docking plate 5221 is provided with a positioning pin 5223, which can pass through the positioning hole of the carrier plate 123. The transfer base frame 521 is the basic load-bearing component of the assembly, slidably connected to the transfer module 510, and can move smoothly along the extension direction of the transfer module 510, providing horizontal movement support for the entire assembly and ensuring accurate arrival at the target position between the variable pitch transition mechanism 400 and the testing mechanism 600. The vertical positioning module 5211 above it provides stable lifting guidance for the transfer lifting frame 522, preventing deviation during lifting. The transfer lifting frame 522 is slidably connected to the positioning module 5211, and can flexibly rise and fall vertically to realize the transfer of components between different height stations. The docking plate 5221 is a key structure for component support and docking. The positioning pin 5223 at the bottom can be precisely inserted into the positioning hole of the carrier plate 123. The positional deviation between the docking plate 5221 and the carrier plate 123 is eliminated by mechanical positioning, ensuring that the components adsorbed by the transfer nozzle 523 can be accurately placed on the carrier plate 123 or the preset position of the test station. Multiple transfer nozzles 523 cooperate with the docking plate 5221 to simultaneously adsorb batches of components, improving transfer efficiency. Furthermore, based on the precise docking of the positioning pin 5223, the positional accuracy of component transfer and placement is further guaranteed, providing a reliable guarantee for the smooth progress of subsequent testing.

[0046] Furthermore, the docking plate 5221 has a clearance opening 5224 extending through its thickness in the middle. The transfer lifting frame 522 has multiple fine-tuning modules 5222 extending vertically. The docking plate 5221 is correspondingly positioned below the fine-tuning modules 5222. The transfer nozzle 523 is slidably connected to the fine-tuning modules 5222 and can pass through the clearance opening 5224 to contact the components. The clearance opening 5224, located in the middle of the docking plate 5221 and extending through its thickness, provides a vertical movement channel for the transfer nozzle 523. This avoids structural interference between the docking plate 5221 and the transfer nozzle 523, ensuring the nozzle can smoothly pass through the docking plate 5221 and directly contact the components below, creating the foundation for subsequent adsorption or placement operations. The fine-tuning modules 5222, extending vertically and positioned on the transfer lifting frame 522, are the core components for achieving precise height adjustment of the transfer nozzle 523. It provides a stable sliding guide for the transfer nozzle 523, enabling it to perform micron-level vertical displacement adjustments. This compensates for the overall lifting accuracy deviation of the transfer lifting frame 522, meeting the high-precision requirements for component adsorption and placement. The docking plate 5221 is positioned below the fine-tuning module 5222. On one hand, it uses the positioning pin 5223 at the bottom to engage with the positioning hole of the carrier plate 123, completing the coarse positioning of the transfer assembly 520 and the carrier plate 123, providing a reference position for the fine-tuning module 5222. On the other hand, it serves as the mounting structure for the fine-tuning module 5222 and the transfer nozzle 523, ensuring the relative stability of each component and providing structural support for precise adjustment. The transfer nozzle 523 is slidably connected to the fine-tuning module 5222 and can move flexibly vertically under the drive of the fine-tuning module 5222. It can pass through the clearance opening 5224 of the docking plate 5221 to directly contact the components, firmly gripping them through negative pressure adsorption or smoothly releasing them to the target position. Its cooperation with the fine-tuning module 5222 ensures the positional accuracy of each adsorption and placement action, avoiding component misalignment or damage.

[0047] In this embodiment, two material handling mechanisms 200, two variable-pitch transition mechanisms 400, and two transfer mechanisms 500 are respectively provided at both ends of the horizontal conveyor belt 122. This structural layout enables parallel processing of component testing. Both ends can simultaneously receive and process different batches of components, avoiding the waiting bottleneck of single-mechanism operation, and is especially suitable for the continuous testing needs of large batches of components. Alternatively, one end can be used for loading, and the other end can be used for unloading; this invention does not limit this.

[0048] In this embodiment, the variable-distance testing system further includes a housing 900, a machine base 800, a control mechanism, an identification mechanism 300, and a sample stage 700. The transmission mechanism 100, the material transfer mechanism 200, the variable-distance transition mechanism 400, the transfer mechanism 500, and the sample stage 700 are all disposed on the machine base 800 and located inside the housing 900. The identification mechanism 300 is located on one side of the material transfer mechanism 200 and includes a top identification camera 310, a bottom identification camera 320, and a barcode scanning NG buffer station 330. The top identification camera 310 is connected to the housing 900 and located inside the housing 900, and the bottom identification camera 320 is connected to the machine base 800. The sample stage 700 and the barcode scanning NG buffer station 330 are both located within the working range of the material transfer mechanism 200.

[0049] Specifically, the outer casing 900 provides a closed protective space for all internal mechanisms of the system. On the one hand, it isolates external dust, impurities, and environmental interference, preventing contaminants from affecting the testing accuracy of components and the smoothness of mechanism movement. On the other hand, it serves as a safety protection measure, preventing operators from contacting moving mechanical parts and reducing noise diffusion during equipment operation, creating a stable working environment. The machine platform 800 is the basic support platform of the system, on which the transmission mechanism 100, material handling mechanism 200, pitch transition mechanism 400, transfer mechanism 500, and sample stage 700 are all fixedly mounted. Its high-strength structural design ensures the accuracy and stability of the installation positions of each mechanism, preventing vibration or displacement during equipment operation, providing a unified benchmark for the coordinated action of each mechanism, and is the core support of the system's mechanical structure. The control mechanism is the control and coordination center of the system, responsible for receiving and processing feedback signals from each mechanism, while simultaneously outputting commands to coordinate the operation of all components. It integrates positioning data from the identification mechanism 300, detection data from the variable pitch transition mechanism 400, and action signals from the transfer mechanism 500 to achieve automated connection of processes such as material handling, pitch adjustment, transfer, and testing, ensuring precise synchronization of the actions of each mechanism and guaranteeing the overall operating efficiency and testing accuracy of the system. The identification mechanism 300 is located on one side of the transfer mechanism 200. Its core function is to provide accurate positioning and initial quality judgment for component transfer and screening. The top identification camera 310 is connected inside the housing 900 and takes pictures of the QR codes on the components in the carrier tray 123 from above to accurately obtain the component type and applicable placement posture, providing accurate positioning basis for the adsorption action of the transfer mechanism 200. The bottom identification camera 320 is installed on the machine 800 and takes pictures of the bottom information of the components from below to supplement the blind spots of the top identification and ensure a comprehensive judgment of the overall condition of the components. The barcode scanning NG buffer station 330 is used to temporarily store components that are identified as unqualified (such as model mismatch or appearance defects) to prevent unqualified products from flowing into the subsequent adjustment and testing process, ensuring the reliability of test results, and facilitating the centralized processing of unqualified samples later.

[0050] The sample stage 700 is mounted on the machine tool 800 and located within the working range of the transfer mechanism 200, serving as a temporary storage and turnover platform for components. It provides a neat placement space for the components to be tested, facilitating quick grabbing by the transfer mechanism 200; simultaneously, it enables batch temporary storage of components, coordinating with the conveyor belt 122 to balance the operational efficiency of each process, avoiding material supply interruptions or accumulation issues, and ensuring continuous and stable system operation.

[0051] Example 2:

[0052] This embodiment provides a variable pitch testing method, which uses the variable pitch testing system described in Embodiment 1 to perform variable pitch testing on components, and includes: Step S1: Move the tray containing multiple components to be tested into the working range of the transfer mechanism; Step S2: The transfer mechanism moves multiple components to be tested into the variable-pitch transition mechanism. During the movement, the variable-pitch transition mechanism adjusts the spacing between multiple support platforms to support the components to be tested. In this embodiment, step S2 specifically includes: Step S21: The position of the tray is captured by the navigation camera on the transfer mechanism to guide the movement path of the suction nozzle assembly on it; Step S22: Adsorb multiple components to be tested through the nozzle assembly and move them to the identification mechanism for barcode scanning test to identify the spacing between the multiple components to be tested; Step S23: After the barcode scanning test results are transmitted to the variable pitch transition mechanism, the multiple carrier platforms adjust their adjacent spacing to support the multiple components to be tested. Step S24: The multiple carrier platforms drive the components to be tested on them to move synchronously until the interval between two adjacent carrier platforms is the same as the interval between multiple fixed test points in the test mechanism.

[0053] Step S3: Adjust the spacing between the multiple carrier platforms so that the spacing between two adjacent carrier platforms is the same as the spacing between multiple fixed test sites in the testing mechanism; Step S4: The multiple components with the variable pitch are moved in batches to the testing mechanism through the transfer mechanism for performance testing.

[0054] In summary, compared with conventional testing technologies at present, this application has the advantages of strong controllability, wide applicability, strong compatibility and high degree of automation, which significantly improves the testing efficiency and quality of components and has broad application prospects in this industry.

[0055] 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 scope of protection of this invention.

Claims

1. A variable-range testing system, characterized in that: include: A transmission mechanism includes a horizontal transmission component, a lifting buffer component, and at least one tray assembly. The horizontal transmission component includes a horizontal transmission belt and a carrier tray. The horizontal transmission belt extends along a first direction, and the carrier tray is disposed on the horizontal transmission belt. The component to be tested is disposed in the carrier tray. The lifting buffer component is disposed at the end of the horizontal transmission belt. The lifting buffer component includes a buffer frame, a lifting frame, and two docking transmission belts. The buffer frame includes a first width adjustment module and a lifting module. The first width adjustment module extends along a second direction. The two docking transmission belts are slidably connected to the first width adjustment module to move relatively closer to / away from it. The docking transmission belts extend along the first direction, and... It can interface with an external tray supply mechanism. The lifting module extends vertically, and the lifting frame is slidably connected to the lifting module and moves up and down above the first width adjustment module. The tray-splitting assembly includes a tray-splitting connecting frame, a horizontal tray-splitting slide, a vertical tray-splitting slide, and at least one tray-splitting claw disposed on both sides of the horizontal conveyor belt. The tray-splitting connecting frame is connected to the conveyor frame in the horizontal conveyor assembly. The horizontal tray-splitting slide is slidably connected to the tray-splitting connecting frame in a second direction. The vertical tray-splitting slide is slidably connected to the horizontal tray-splitting slide in a vertical direction. At least one of the tray-splitting claws is fixed to the vertical tray-splitting slide and extends toward the horizontal conveyor belt to move to the bottom of the tray and lift the tray. A variable pitch transition mechanism includes a fixed support and multiple support platforms. The fixed support is provided with a variable pitch module extending in a horizontal direction. The multiple support platforms are slidably connected to the variable pitch module. Each support platform is used to accommodate a component to be tested in order to adjust the spacing between the components to be tested. A transfer mechanism is disposed between the transmission mechanism and the variable pitch transition mechanism, and is used to transfer the component to be tested between the transmission mechanism and the variable pitch transition mechanism; The testing mechanism is located on one side of the horizontal conveyor belt and has multiple fixed testing points inside it. A transfer mechanism includes a transfer module and a transfer assembly. The transfer module is disposed between the testing mechanism and the horizontal conveyor belt, extends along the first direction, and its end extends to one side of the variable pitch transition mechanism. The transfer assembly is slidably connected to the transfer module and includes a transfer base frame, a transfer lifting frame, and multiple transfer nozzles for transferring components between the testing mechanism and the variable pitch transition mechanism. The spacing between the multiple transfer nozzles is the same as the spacing between the fixed test points. The transfer base frame is slidably connected to the transfer module and has at least one positioning module extending vertically. The transfer lifting frame is slidably connected to the positioning module and includes a docking plate. The bottom of the docking plate has a positioning pin that can pass through the positioning hole of the carrier plate. The middle of the docking plate has a clearance opening extending along its thickness direction. The transfer lifting frame has multiple fine adjustment modules extending vertically. The docking plate is correspondingly disposed below the fine adjustment modules. The transfer nozzles are slidably connected to the fine adjustment modules and can pass through the clearance opening to contact the components.

2. The variable-range testing system according to claim 1, characterized in that: The transmission mechanism includes two lifting buffer components, which are respectively disposed at both ends of the horizontal conveyor belt to load and unload the tray containing the components. Corresponding to both ends of the horizontal conveyor belt, there are two material transfer mechanisms, two pitch transition mechanisms, and two transfer mechanisms.

3. The variable-range testing system according to claim 1, characterized in that: The horizontal transmission assembly includes a transmission frame and two horizontal transmission belts. The transmission frame includes a second width adjustment module that extends along a second direction. The two horizontal transmission belts are slidably connected to the second width adjustment module so as to be relatively close to / away from each other. The upper edge of the carrier in the second direction is connected to the two horizontal transmission belts respectively.

4. The variable-range testing system according to claim 1, characterized in that: The material transfer mechanism includes a robotic arm, a rotary joint, a mounting frame, a navigation camera, and multiple suction nozzle assemblies. The rotary joint is connected to the moving end of the robotic arm, and the mounting frame is connected to the rotary joint so that it can rotate around a rotation center line through the rotary joint. The navigation camera and the suction nozzle assemblies are respectively connected to the mounting frame, wherein the multiple suction nozzle assemblies respectively adsorb components.

5. The variable-range testing system according to claim 4, characterized in that: The mounting frame is provided with multiple nozzle adjustment modules, each extending along the height direction of the mounting frame. Multiple nozzle assemblies are respectively arranged corresponding to the multiple nozzle adjustment modules. Each nozzle assembly includes a docking nozzle, an elastic element, and an adjustment frame. The adjustment frame is slidably connected to the corresponding nozzle adjustment module. The docking nozzle is passed through and connected to the adjustment frame. The elastic element is disposed between the docking nozzle and the adjustment frame.

6. The variable-range testing system according to claim 1, characterized in that: The variable pitch transition mechanism further includes a component detector and a spacing detector. The support platform includes a support carriage and a quick-change tray. The support carriage is slidably connected to the variable pitch module. The quick-change tray is connected to the support carriage and has a component receiving slot on it. The component is located in the component receiving slot. The component detector and the spacing detector are respectively disposed on the support carriage. The component detector is disposed facing the component receiving slot, and the spacing detector is disposed facing the adjacent support platform to detect the spacing distance between adjacent support platforms.

7. The variable-range testing system according to claim 1, characterized in that: The variable-distance testing system further includes a housing, a machine base, a control mechanism, an identification mechanism, and a sample stage. The transfer mechanism, the material handling mechanism, the variable-distance transition mechanism, the transport mechanism, and the sample stage are all mounted on the machine base and located inside the housing. The identification mechanism is located on one side of the material handling mechanism and includes a top identification camera, a bottom identification camera, and a barcode scanning NG buffer. The top identification camera is connected to the housing and located inside the housing, and the bottom identification camera is connected to the machine base. The sample stage and the barcode scanning NG buffer are both located within the working range of the material handling mechanism.

8. A method for testing variable distance, characterized in that: Performing a pitch test on a component using the pitch test system according to any one of claims 1 to 7, comprising: Step S1: Move the tray containing multiple components to be tested into the working range of the transfer mechanism; Step S2: The transfer mechanism moves multiple components to be tested into the variable pitch transition mechanism. During the movement, the variable pitch transition mechanism adjusts the interval distance of multiple support platforms to support the components to be tested. Step S3: Adjust the spacing between the multiple carrier platforms so that the spacing between two adjacent carrier platforms is the same as the spacing between multiple fixed test sites in the testing mechanism; Step S4: The multiple components with the variable pitch are moved in batches to the testing mechanism through the transfer mechanism for performance testing.

9. The variable distance testing method according to claim 8, characterized in that: Step S2 specifically includes: Step S21: The position of the tray is captured by the navigation camera on the transfer mechanism to guide the movement path of the suction nozzle assembly on it; Step S22: The nozzle assembly of the transfer mechanism adsorbs multiple components to be tested and moves them to the identification mechanism for barcode scanning test to identify the spacing between the multiple components to be tested. Step S23: After the barcode scanning test results are transmitted to the variable pitch transition mechanism, the multiple carrier platforms adjust their adjacent spacing to support the multiple components to be tested. Step S24: The multiple carrier platforms drive the components to be tested on them to move synchronously until the interval between two adjacent carrier platforms is the same as the interval between multiple fixed test points in the test mechanism.

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