Variable pitch test system and method

Abstract

The invention provides a variable pitch test system and method, and the system comprises a transmission mechanism which comprises a horizontal transmission assembly and a lifting cache assembly, the horizontal transmission assembly comprises a horizontal transmission belt and a carrying disc, and the lifting cache assembly is arranged at the end part of the horizontal transmission belt; the variable-pitch transition mechanism comprises a fixed bracket and a bearing table; the material moving mechanism is arranged between the conveying mechanism and the variable-pitch transition mechanism; a plurality of fixed test sites are arranged in the test mechanism; the transfer mechanism comprises a transfer module and a transfer assembly, the transfer assembly is connected to the transfer module and comprises a plurality of transfer suction nozzles, and the distance between the transfer suction nozzles is equal to the distance between the fixed test sites. According to the invention, the problem that the testing efficiency is affected due to insufficient matching of mechanism stations in the detection process can be overcome, compared with the conventional testing technology, the device has the advantages of high controllability, wide application scene, high compatibility, high automation degree and the like, and the testing efficiency and quality of components are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of component testing, and particularly relates to a variable-distance testing system and method. BACKGROUND

[0002] In the field of electronic component production testing, the electrical performance testing of components often relies on special testing equipment such as ICT equipment. The core testing site of such testing equipment is a preset fixed structure, and the spacing parameters of which cannot be flexibly adjusted after the equipment is shipped, so as to adapt to the requirements of specific testing standards.

[0003] However, in actual production, the types of components are various, and the corresponding bearing carriers of different types of components have significant differences in structural design and size specifications. At the same time, the components in the batch transfer process are also limited by the structure of the transmission path and the transmission mechanism, which makes it difficult to accurately match the batch-transferred component arrangement spacing with the fixed testing site spacing of the testing equipment.

[0004] This lack of matching problem makes it impossible for batch-transferred components to be directly connected to the testing equipment for efficient testing, and the components need to be transferred to the testing equipment one by one after batch transfer, which not only prolongs the testing process but also reduces the overall transfer efficiency, becomes a key bottleneck restricting the improvement of component batch testing efficiency, and is difficult to meet the efficient testing requirements in the large-scale production scenario. SUMMARY

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

[0006] To solve the above technical problems, the application provides a variable-distance test system, which comprises a conveying mechanism, a variable-distance transition mechanism, a material moving mechanism, a test mechanism and a transfer mechanism.

[0007] In an embodiment of the application, the conveying mechanism comprises two lifting and buffering assemblies, which are respectively arranged at two ends of the horizontal conveying belt to respectively load and unload the trays containing components.

[0008] In an embodiment of the application, the lifting and buffering assembly comprises a buffering frame, a lifting frame and two joint conveying belts, the buffering frame comprises a first width adjusting module and a lifting module, the first width adjusting module extends in a second direction, the two joint conveying belts are respectively slidably connected to the first width adjusting module to relatively move close to or away from each other, the joint conveying belts extend in the first direction and can be jointed with an external 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 adjusting module.

[0009] In one embodiment of the present application, the horizontal conveying assembly comprises a conveying frame and two horizontal conveying belts, the conveying frame comprises a second width adjusting module, the second width adjusting module extends along a second direction, and the two horizontal conveying belts are respectively connected to the second width adjusting module to be relatively close or far away from each other, and the second direction edge of the carrier plate is respectively connected to the two horizontal conveying belts.

[0010] In one embodiment of the present application, the conveying mechanism further comprises at least one disc separating assembly, the disc separating assembly comprises a disc connecting frame arranged on both sides of the horizontal conveying belt, a horizontal disc sliding frame, a vertical disc sliding frame, and at least one disc claw, the disc connecting frame is connected to the conveying frame in the horizontal conveying assembly, the horizontal disc sliding frame is slidably connected to the disc connecting frame along the second direction, the vertical disc sliding frame is slidably connected to the horizontal disc sliding frame along the vertical direction, and the at least one disc claw is fixedly connected to the vertical disc sliding frame and extends towards the horizontal conveying belt to move to the bottom of the carrier plate and lift the carrier plate.

[0011] In one embodiment of the present application, the material moving mechanism comprises a mechanical arm, a rotary joint, a mounting frame, a navigation camera, and a plurality of suction nozzle assemblies, the rotary joint is connected to the moving end of the mechanical arm, the mounting frame is connected to the rotary joint to rotate around the rotation center line through the rotary joint, and the navigation camera and the suction nozzle assemblies are respectively connected to the mounting frame, wherein the plurality of suction nozzle assemblies respectively suck components.

[0012] In one embodiment of the present application, the mounting frame is provided with a plurality of suction nozzle adjusting modules, the plurality of suction nozzle adjusting modules extend along the height direction of the mounting frame, the plurality of suction nozzle assemblies are respectively arranged corresponding to the plurality of suction nozzle adjusting modules, any suction nozzle assembly comprises a docking suction head, an elastic member, and an adjusting frame, the adjusting frame is slidably connected to the corresponding suction nozzle adjusting module, the docking suction head is connected to the adjusting frame, and the elastic member is arranged between the docking suction head and the adjusting frame.

[0013] In one embodiment of the present application, the distance changing transition mechanism further comprises a component detector and a distance detector, the carrier table comprises a carrier sliding frame and a quick-change carrier plate, the carrier sliding frame is slidably connected to the distance changing module, the quick-change carrier plate is connected to the carrier sliding frame and is provided with a component accommodating groove, a component is arranged in the component accommodating groove, and the component detector and the distance detector are respectively arranged on the carrier sliding frame, wherein the component detector is arranged towards the component accommodating groove, and the distance detector is arranged towards the adjacent carrier table to detect the interval distance of the adjacent carrier table.

[0014] In one embodiment of the present application, the transfer assembly comprises a transfer base frame, a transfer lifting frame and a plurality of transfer suction nozzles, the transfer base frame is slidingly connected to the transfer module, and at least one positioning module extending in the vertical direction is arranged on the transfer base frame, the transfer lifting frame is slidingly connected to the positioning module, and the transfer lifting frame comprises a docking plate, and a positioning pin is arranged at the bottom of the docking plate and can be arranged in the positioning hole of the carrier disc.

[0015] In one embodiment of the present application, the docking plate is provided with an avoiding opening penetrating through the thickness direction of the docking plate, a plurality of fine adjustment modules extending in the vertical direction are arranged on the transfer lifting frame, the docking plate is correspondingly arranged below the fine adjustment modules, the transfer suction nozzles are slidingly connected to the fine adjustment modules and can contact the components after penetrating through the avoiding opening.

[0016] In one embodiment of the present application, the variable-distance testing system further comprises a shell, a machine table, a control mechanism, an identification mechanism and a sample carrier, the transmission mechanism, the material moving mechanism, the variable-distance transition mechanism, the transfer mechanism and the sample carrier are arranged on the machine table and located inside the shell, the identification mechanism is located on one side of the material moving mechanism and comprises a top identification camera, a bottom identification camera and a code scanning NG buffer table, the top identification camera is connected to the shell and located inside the shell, the bottom identification camera is connected to the machine table, and the sample carrier and the code scanning NG buffer table are located within the working range of the material moving mechanism.

[0017] The present application also provides a variable-distance testing method for testing components by using the variable-distance testing system, which comprises the following steps: S1, moving a carrier disc containing a plurality of components to be tested into the working range of the material moving mechanism; S2, moving the plurality of components to be tested into the variable-distance transition mechanism by the material moving mechanism, and adjusting the interval distance between the plurality of carrier tables in the variable-distance transition mechanism to accommodate the components to be tested during the moving process; S3, adjusting the interval distance between the plurality of carrier tables so that the interval distance between two adjacent carrier tables is the same as the interval distance between a plurality of fixed test sites in the testing mechanism; and S4, moving the plurality of components after variable-distance adjustment into the testing mechanism by the transfer mechanism to perform performance testing.

[0018] In an embodiment of the present application, step S2 specifically comprises: step S21, capturing the disc position by a navigation camera on the material moving mechanism to navigate the moving path of the suction nozzle assembly thereon; step S22, absorbing multiple components to be tested by the suction nozzle assembly and moving them to the identification mechanism for code scanning test to identify the interval distance between the multiple components to be tested; step S23, after the code scanning test result is transmitted to the variable distance transition mechanism, the multiple supporting tables adjust their adjacent intervals to accommodate the multiple components to be tested; and step S24, the multiple supporting tables drive the components to be tested thereon to move synchronously until the interval distance between the adjacent two supporting tables is the same as the interval distance of the multiple fixed test sites in the test mechanism.

[0019] The above technical solutions of the present application have the following advantages compared with the prior art: The variable distance test system and method disclosed by the present application can transfer the disc containing components by the transfer mechanism, batch transfer the components after feeding to the variable distance transition mechanism by the material moving mechanism, and make the interval distance between the components to be tested the same as the interval distance of the multiple fixed test sites in the test mechanism by the variable distance transition mechanism, so that the variable distance components can be directly moved to the test mechanism by the transfer mechanism, thereby overcoming the problem of insufficient mechanism station matching in the detection process, affecting the test efficiency.

[0020] Compared with the conventional test technology at the present stage, the present application has the advantages of strong controllability, wide application scene, strong compatibility, high automation degree, etc., significantly improves the test efficiency and quality of components, and has a broad application prospect in the industry. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments of the present application and in conjunction with the drawings.

[0022] Figure 1 is a perspective structural schematic diagram of the variable distance test system in the preferred embodiment of the present application; Figure 2 is Figure 1 is a schematic diagram of the internal structure of the variable distance test system shown in FIG. 1; Figure 3 is a schematic diagram of the structure of the variable distance test system shown in FIG. 1; Figure 2 Figure 4 is Figure 2 is a perspective structural schematic diagram of the transfer mechanism in the variable distance test system shown in FIG. 1; Figure 5 is Figure 4 is an enlarged structural diagram of position A in the transfer mechanism shown in FIG. 1; Figure 6 is​Figure 2 A perspective view of a material moving mechanism in the variable distance testing system shown; Figure 7 is Figure 6 An enlarged structural view at B in the above figure; Figure 8 is Figure 3 An enlarged structural view at C in the above figure; Figure 9 is Figure 2 A perspective view of a transfer mechanism in the variable distance testing system shown; Figure 10 is Figure 2 A perspective view of a transfer assembly in the variable distance testing system shown.

[0023] Description of the Drawings: 100, a transfer mechanism; 110, a lifting and buffering assembly; 111, a buffering rack body; 1111, a first width adjusting module; 1112, a lifting module; 112, a docking transfer belt; 113, a lifting rack; 120, a horizontal transfer assembly; 121, a transfer rack body; 1211, a second width adjusting module; 122, a horizontal transfer belt; 123, a loading tray; 130, a tray separating assembly; 131, a tray connecting rack; 132, a horizontal tray sliding rack; 133, a vertical tray sliding rack; 134, a tray claw; 200, a material moving mechanism; 210, a mechanical arm; 220, a rotary joint; 230, a mounting rack; 231, a suction nozzle adjusting module; 240, a suction nozzle assembly; 241, a docking suction head; 242, an elastic member; 243, an adjusting rack; 250, a navigation camera; 300, an identification mechanism; 310, a top identification camera; 320, a bottom identification camera; 330, a code scanning NG buffering table; 400, a variable distance transition mechanism; 410, a fixed support; 411, a variable distance module; 420, a bearing table; 421, a bearing sliding rack; 422, a quick-change loading tray; 430, a component detector; 440, a distance detector; 500, a transfer mechanism; 510, a transfer module; 520, a transfer assembly; 521, a transfer base rack; 5211, a positioning module; 522, a transfer lifting rack; 5221, a docking plate; 5222, a fine adjustment module; 5223, a positioning pin; 5224, an avoidance opening; 523, a transfer suction nozzle; 600, a testing mechanism; 700, a sample loading table; 800, a machine table; 900, a housing; 1001, a rotation center line; X, a first direction; Y, a second direction; Z, a third direction. DETAILED DESCRIPTION

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

[0025] Embodiment One:

[0026] Reference is made toFigures 1 to 10 As shown, the embodiment provides a pitch testing system, which comprises a transmission mechanism 100, the transmission mechanism 100 comprises a horizontal transmission assembly 120 and a lifting buffer assembly 110, the horizontal transmission assembly 120 comprises a horizontal transmission belt 122 and a carrier disc 123, the horizontal transmission belt 122 extends along a first direction X, the carrier disc 123 is arranged on the horizontal transmission belt 122, components to be tested are arranged in the carrier disc 123, and the lifting buffer assembly 110 is arranged at the end of the horizontal transmission belt 122; a pitch transition mechanism 400, the pitch transition mechanism 400 comprises a fixed support 410 and a plurality of bearing tables 420, the fixed support 410 is provided with a pitch module 411 extending along the horizontal direction, and a plurality of bearing tables 420 are respectively connected to the pitch module 411 in a sliding manner, any bearing table 420 is used to accommodate a component to be tested to adjust the pitch of the component to be tested; a material moving mechanism 200, the material moving mechanism 200 is arranged between the transmission mechanism 100 and the pitch transition mechanism 400, and is used to transfer the components to be tested between the transmission mechanism 100 and the pitch transition mechanism 400; a testing mechanism 600, the testing mechanism 600 is located on one side of the horizontal transmission belt 122, and a plurality of fixed test sites are arranged in the testing mechanism 600; a transfer mechanism 500, the transfer mechanism 500 comprises a transfer module 510 and a transfer assembly 520, the transfer module 510 is arranged between the testing mechanism 600 and the horizontal transmission belt 122, extends along the first direction X, and extends to one side of the pitch transition mechanism 400 at the end, and the transfer assembly 520 is connected to the transfer module 510 in a sliding manner, comprises a plurality of transfer nozzles 523, and is used to transfer the components between the testing mechanism 600 and the pitch transition mechanism 400, wherein the pitch of the plurality of transfer nozzles 523 is the same as the pitch of the fixed test sites.

[0027] The variable distance test system and method provided by the application, through the transmission mechanism 100, the carrier disc 123 containing components and elements is transmitted, the material transfer mechanism 200 transfers the components and elements after feeding to the variable distance transition mechanism 400, so that the distance between the components and elements to be tested is the same as the distance between the multiple fixed test sites in the test mechanism 600 through the variable distance transition mechanism 400, so that the components and elements after variable distance can be directly moved to the test mechanism 600 through the transfer mechanism 500, thereby overcoming the problem of insufficient mechanism station matching in the detection process, affecting the test efficiency. It should be noted that, for the sake of description, the length direction of the transmission mechanism 100 is defined as the first direction X, the width direction of the transmission mechanism 100 is defined as the second direction Y, and the height direction (vertical direction) of the system is defined as the third direction Z, wherein the first direction X, the second direction Y and the third direction Z are perpendicular to each other, and the first direction X and the second direction Y are in the same plane.

[0028] In the embodiment, the transmission mechanism 100 undertakes the core transmission task of components and elements from initial feeding to test and then discharging, and the horizontal transmission assembly 120 and the lifting buffer assembly 110 form an orderly material flow channel, wherein the horizontal transmission assembly 120 is composed of a horizontal transmission belt 122 extending along the first direction X and a carrier disc 123 arranged thereon. The carrier disc 123 serves as a direct bearing structure for the components and elements to be tested, which can provide stable placement space for the components and elements, ensure the position stability of the components and elements during horizontal transmission, and avoid attitude deviation caused by shaking. The horizontal transmission belt 122 is designed to extend along the fixed direction, which ensures the directionality and continuity of material transmission, so that the carrier disc 123 can be accurately delivered to the specified position.

[0029] Further, the horizontal transmission assembly 120 in the embodiment includes a transmission frame 121 and two horizontal transmission belts 122, the transmission frame 121 includes a second width adjusting module 1211, the second width adjusting module 1211 extends along the second direction Y, and the two horizontal transmission belts 122 are respectively connected to the second width adjusting module 1211 to relatively approach / away, and the second direction Y upper edge of the carrier disc 123 is respectively connected to the two horizontal transmission belts 122.

[0030] As a core component of the variable-distance test system transmission mechanism 100, the horizontal transmission assembly 120 specifically comprises a transmission frame body 121 and two horizontal transmission belts 122, wherein the transmission frame body 121 is integrated with a second width adjustment module 1211 extending along the second direction Y, which provides a sliding installation basis and driving support for the two horizontal transmission belts 122, so that the two horizontal transmission belts 122 can be respectively in sliding connection with the second width adjustment module 1211 and realize the action of relatively approaching or moving away under the action of the second width adjustment module 1211. This structural design enables the horizontal transmission assembly 120 to adapt to different sizes of the carrier disc 123 by adjusting the distance between the two horizontal transmission belts 122, thereby greatly improving the compatibility of the horizontal transmission assembly 120 for different specifications of the carrier disc 123, and providing flexible transmission guarantee for subsequent carrying of different types of components to be tested.

[0031] The lifting buffer assembly 110 in the embodiment is arranged at the end of the horizontal transmission belt 122, and its core function is to realize temporary storage of materials and connection of feeding and discharging. It can carry a plurality of stacked carrier discs 123. Further, the transmission mechanism 100 in the embodiment comprises two lifting buffer assemblies 110, which are respectively arranged at the two ends of the horizontal transmission belt 122 to respectively feed and discharge the carrier disc 123 containing components. This two-end division design enables the feeding and discharging processes to be independently synchronized, which not only improves the processing efficiency of batch materials, but also builds a complete material circulation closed loop. At the same time, the carrying capacity of multiple stacked carrier discs 123 also meets the demand of batch transfer in large-scale production, significantly enhancing the practicality and adaptability of the transmission mechanism 100.

[0032] Specifically, the lifting and buffering assembly 110 in the embodiment comprises a buffering rack body 111, a lifting rack 113, and two docking conveying belts 112. The buffering rack body 111 comprises a first width adjusting module 1111 extending along a second direction Y and a lifting module 1112. The two docking conveying belts 112 are respectively slidably connected to the first width adjusting module 1111 to move relatively close to or away from each other. The docking conveying belts 112 extend along the first direction X and can be docked with an external tray supply mechanism. The lifting module 1112 extends along a vertical direction. The lifting rack 113 is slidably connected to the lifting module 1112 and moves up and down above the first width adjusting module 1111. The buffering rack body 111 is integrated with the first width adjusting module 1111 extending along the second direction Y and the lifting module 1112 extending along the vertical direction. The two docking conveying belts 112 are respectively slidably connected to the first width adjusting module 1111 and can move relatively close to or away from each other under the drive of the first width adjusting module 1111. The docking conveying belts 112 extend along the first direction X and can be precisely docked with the external tray supply mechanism. The lifting rack 113 is slidably connected to the lifting module 1112 and can move up and down along the vertical direction above the first width adjusting module 1111. Through the cooperation of the width adjustment, docking, and lifting actions, the lifting and buffering assembly 110 can not only adapt to the trays 123 of different sizes along the second direction Y, but also realize the smooth transfer of the trays 123 between the external tray supply mechanism and the horizontal conveying belt 122, further ensuring the smoothness and compatibility of the loading and unloading processes.

[0033] Further, the conveying mechanism 100 in the embodiment further comprises at least one disc separating assembly 130, the disc separating assembly 130 comprises a disc separating connecting frame 131, a horizontal disc separating slide 132, a vertical disc separating slide 133 and at least one disc separating claw 134, the disc separating connecting frame 131 is connected to the conveying frame 121 in the horizontal conveying assembly 120, the horizontal disc separating slide 132 is slidingly connected to the disc separating connecting frame 131 in the second direction Y, the vertical disc separating slide 133 is slidingly connected to the horizontal disc separating slide 132 in the vertical direction, at least one disc separating claw 134 is fixedly connected to the vertical disc separating slide 133 and extends towards the horizontal conveying belt 122 to move to the bottom of the carrier disc 123 and lift the carrier disc 123. Wherein, the disc separating connecting frame 131 is arranged on both sides of the horizontal conveying belt 122, one end is stably connected to the conveying frame 121 of the horizontal conveying assembly 120 to provide reliable mounting support for the entire disc separating assembly 130 and ensure the stability of the structure in the subsequent action process; the horizontal disc separating slide 132 is slidingly connected to the disc separating connecting frame 131 in the second direction Y to drive the subsequent components to move flexibly in the second direction Y, realize the position adjustment of the disc separating claw 134 in the horizontal direction, and adapt to the carrier disc 123 with different second direction Y size; the vertical disc separating slide 133 is slidingly connected to the horizontal disc separating slide 132 in the vertical direction, which can drive the disc separating claw 134 to move up and down to provide power support for lifting and lowering the carrier disc 123; at least one disc separating claw 134 is fixedly connected to the vertical disc separating slide 133 and extends towards the horizontal conveying belt 122, which can accurately move to the bottom of the target carrier disc 123 under the coordinated driving of the horizontal disc separating slide 132 and the vertical disc separating slide 133, separate the carrier disc 123 stacked on the top from other stacked carrier discs 123 or adjust the height of the carrier disc 123, avoid the stacking jamming of the carrier disc 123 during conveying, and ensure the orderly circulation of the carrier disc 123 on the horizontal conveying belt 122. Specifically, three disc separating assemblies 130 are arranged in the embodiment, which correspond to the two ends and the middle position of the horizontal conveying belt 122 to assist in loading, unloading and buffering the carrier disc 123, in different embodiments, the disc separating assembly 130 can be arranged at other positions or set to other quantities according to actual use requirements, which is not limited in the present application.

[0034] Referring to Figure 6 and Figure 7As shown, the material transfer mechanism 200 plays a bridge role in the cross- mechanism transfer of the material. 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 carrier table 420 in the variable-distance transition mechanism 400, and through mechanical action, it can transfer a batch of components in the carrier 123 on the horizontal transmission belt 122 to the carrier table 420 of the variable-distance transition mechanism 400. During this process, the material transfer mechanism 200 needs to ensure the stability of the component posture and the accuracy of the position during the transfer of the components, avoid damage or position deviation of the components due to the transfer operation, ensure the accuracy of the subsequent variable-distance adjustment, and directly affect the batch processing capacity of the entire system. The transfer efficiency is an important guarantee for the smooth transition of the material from the transmission link to the variable-distance link.

[0035] Further, the material transfer mechanism 200 in the embodiment includes a mechanical arm 210, a rotary joint 220, a mounting frame 230, a navigation camera 250, and a plurality of suction nozzle assemblies 240. The rotary joint 220 is connected to the moving end of the mechanical arm 210. The mounting frame 230 is connected to the rotary joint 220 to rotate around the rotation center line 1001 through the rotary joint 220. The navigation camera 250 and the suction nozzle assemblies 240 are respectively connected to the mounting frame 230. Each of the plurality of suction nozzle assemblies 240 adsorbs a component. The mechanical arm 210 is the power and motion execution basis of the material transfer mechanism 200. It has multiple degrees of freedom of motion and can drive the entire end execution structure to move flexibly between the transmission mechanism 100 and the variable-distance transition mechanism 400. Through pre-set programs or real-time control, it can quickly locate the target component and provide stable motion support for subsequent adsorption and transfer operations. The 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 mechanical arm 210 and serves as a core component for realizing rotation. 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 assemblies 240 and the navigation camera 250 on the mounting frame 230 to adjust their postures flexibly according to the position angle of the carrier 123 and the carrier table 420, avoid interference with other mechanisms during the transfer process, and ensure that the suction nozzle assemblies 240 can best fit the surface of the components to improve adsorption stability.

[0036] The mounting frame 230 is an integrated carrier of various end functional components, one end of which is stably connected with the rotary joint 220, and the power of the mechanical arm 210 and the rotating action of the rotary joint 220 are transmitted to the navigation camera 250 and the suction nozzle assembly 240, while reliable mounting references are provided for the two, the relative positions between the components are fixed, and structural support is provided for navigation positioning and precise adsorption. The navigation camera 250 is connected to the mounting frame 230 and is the visual core of the material moving mechanism 200. It accurately obtains the specific position coordinates of each component to be transferred by shooting the distribution image of the components in the carrier disc 123, combining image recognition and positioning technology, and feeding back the coordinate information to the control system in real time, providing accurate position basis for the movement of the mechanical arm 210 and the rotary joint 220 and the adsorption action of the suction nozzle assembly 240, effectively compensating for the positioning error caused by the placement deviation of the carrier disc 123 or the slight deviation of the components.

[0037] The plurality of suction nozzle assemblies 240 are connected to the mounting frame 230 as the execution components directly contacting the components, and are linked with the positioning information of the navigation camera 250. After the navigation camera 250 completes positioning, the mechanical arm 210 and the rotary joint 220 cooperatively adjust the posture of the mounting frame 230, so that each suction nozzle assembly 240 is aligned with the corresponding component to be tested, and then the suction nozzle assembly 240 forms stable adhesion with the surface of the component by negative pressure adsorption or the like, realizing firm grabbing of the component. The arrangement of the plurality of suction nozzle assemblies 240 enables the material moving mechanism 200 to simultaneously transport batch components, greatly improving the transport efficiency, and the precise cooperation with the navigation camera 250 ensures that each suction nozzle assembly 240 can accurately correspond to the target component, avoiding adsorption misalignment or omission.

[0038] In actual operation, the mechanical arm 210 drives the mounting frame 230 to move above the carrier disc 123 of the transmission mechanism 100, the navigation camera 250 quickly shoots and positions the component to be tested in the carrier disc 123, the control system drives the rotary joint 220 to adjust the angle of the mounting frame 230 according to the positioning information, and simultaneously controls the mechanical arm 210 to fine-tune the position, so that the plurality of suction nozzle assemblies 240 accurately align with each component and complete adsorption; then the mechanical arm 210 drives the suction nozzle assembly 240 with the component to move above the bearing table 420 of the variable-distance transition mechanism 400, the rotary joint 220 adjusts the posture again so that the component matches the placement position of the bearing table 420, and finally the suction nozzle assembly 240 releases the negative pressure to stably place the component on the bearing table 420, completing a complete transport process. Through the coordinated operation of various structures, the material moving mechanism 200 effectively guarantees the posture stability and position accuracy of the components in the cross-mechanism transport process, lays a good foundation for the subsequent pitch adjustment work of the variable-distance transition mechanism 400, and further improves the operation efficiency of the entire variable-distance test system.

[0039] Further, the mounting rack 230 is provided with a plurality of suction nozzle adjusting modules 231, the plurality of suction nozzle adjusting modules 231 extend along the height direction of the mounting rack 230, and the plurality of suction nozzle assemblies 240 are respectively arranged corresponding to the plurality of suction nozzle adjusting modules 231, any of the suction nozzle assemblies 240 comprises a docking suction head 241, an elastic member 242 and an adjusting rack 243, the adjusting rack 243 is slidingly connected to the corresponding suction nozzle adjusting module 231, the docking suction head 241 is connected to the adjusting rack 243, and the elastic member 242 is arranged between the docking suction head 241 and the adjusting rack 243.

[0040] Specifically, the plurality of suction nozzle assemblies 240 as the execution component directly contacting the components are connected to the mounting rack 230 through the suction nozzle adjusting modules 231 and are linked with the positioning information of the navigation camera 250. In order to further improve the adaptability and stability of suction, the mounting rack 230 is provided with a plurality of suction nozzle adjusting modules 231, all of the suction nozzle adjusting modules 231 extend along the height direction of the mounting rack 230, and the plurality of suction nozzle assemblies 240 are arranged one by one corresponding to the plurality of suction nozzle adjusting modules 231. Any of the suction nozzle assemblies 240 comprises the docking suction head 241, the elastic member 242 and the adjusting rack 243, wherein the adjusting rack 243 is slidingly connected to the corresponding suction nozzle adjusting module 231 and can be flexibly moved along the height direction of the adjusting module to realize precise adjustment of the height of the docking suction head 241; the docking suction head 241 is connected to the adjusting rack 243 and is a component directly contacting the components, the structure of which is adapted to the surface form of the components to ensure the suction fit; the elastic member 242 is arranged between the docking suction head 241 and the adjusting rack 243 and can provide a buffering effect in the suction process to avoid damage caused by rigid contact between the docking suction head 241 and the components, and can compensate for the slight undulation or height deviation of the surface of the components through elastic deformation to ensure that the docking suction head 241 is always closely attached to the surface of the components. After the navigation camera 250 completes positioning, the mounting rack 230 adjusts the posture in cooperation with the mechanical arm 210 and the rotary joint 220, the adjusting rack 243 is adapted to the height of the suction nozzle adjusting module 231, the docking suction head 241 of each suction nozzle assembly 240 is precisely aligned with the corresponding component to be tested, and then the docking suction head 241 is stably attached to the surface of the component by negative pressure suction or other methods to realize firm grasping of the component. The arrangement of the plurality of suction nozzle assemblies 240 enables the material moving mechanism 200 to simultaneously transport a batch of components, greatly improving the transport efficiency, and the precise cooperation of the plurality of suction nozzle assemblies 240 with the navigation camera 250 and the suction nozzle adjusting modules 231 ensures that each suction nozzle assembly 240 can accurately and safely correspond to the target component, avoiding the situation of suction mispositioning, missing suction or damaging the component.

[0041] Referring to Figure 8As shown, the variable-distance transition mechanism 400 in the embodiment is the core functional unit for solving the problem of matching the distance between stations, which realizes the precise adjustment of the distance between the to-be-tested components through structural design. The fixed support 410 provides a stable mounting basis for the entire variable-distance structure, ensuring the stability of the structure during the variable-distance process. The variable-distance module 411 extending in the horizontal direction provided on the fixed support 410 provides guidance and driving support for the sliding of the bearing table 420. The plurality of bearing tables 420 are respectively slidably connected with the variable-distance module 411. Each bearing table 420 is specially used for accommodating a to-be-tested component. This one-to-one correspondence of the bearing mode makes the distance adjustment of a single component more precise and controllable. After the component is transferred to the bearing table 420, the variable-distance module 411 can drive the plurality of bearing tables 420 to slide in the horizontal direction synchronously or differently, so as to adjust the to-be-tested component on the bearing table 420 to the required distance according to the distance requirement of the fixed test site in the test mechanism 600, laying a foundation for the subsequent precise docking with the test mechanism 600, and completely breaking the limitation that the distance between components in the traditional test cannot be adapted to the test site.

[0042] Further, the variable distance transition mechanism 400 in the embodiment further comprises an element detector 430 and a distance detector 440, the carrier table 420 comprises a carrier slide 421 and a quick-change carrier disc 422, the carrier slide 421 is slidingly connected to the variable distance module 411, the quick-change carrier disc 422 is connected to the carrier slide 421, and an element accommodating groove is arranged on the quick-change carrier disc 422, and the element is located in the element accommodating groove, the element detector 430 and the distance detector 440 are arranged on the carrier slide 421 respectively, wherein the element detector 430 is arranged towards the element accommodating groove, and the distance detector 440 is arranged towards the adjacent carrier table 420 to detect the interval distance of the adjacent carrier table 420. Wherein the carrier slide 421 is the movement core of the carrier table 420, and is slidingly connected with the variable distance module 411, and can move smoothly along the horizontal direction under the driving of the variable distance module 411, thereby providing basic movement support for the interval adjustment of the element; the quick-change carrier disc 422 is connected above the carrier slide 421, and the element accommodating groove arranged on the quick-change carrier disc 422 can be accurately matched with the element to be tested, thereby providing a stable placement space for the element, avoiding the deviation or falling of the element during the interval adjustment, and the quick-change design can quickly adapt to various types of elements by replacing the carrier disc 123 of different specifications, thereby significantly improving the universality of the mechanism; the element detector 430 is fixed on the carrier slide 421, and the detection direction is towards the element accommodating groove, so that whether the element is successfully placed in the groove, whether the placement posture of the element is standard, and whether the position is deviated can be detected in real time, and once the abnormal conditions such as empty groove and misplacement are found, the signal can be immediately fed back to the control mechanism, thereby avoiding the invalid interval adjustment action in the subsequent process; the distance detector 440 is also installed on the carrier slide 421, and the detection direction is towards the adjacent carrier table 420, and the core function thereof is to accurately collect the interval distance data between the current carrier table 420 and the adjacent carrier table 420, and to transmit the detection data to the control mechanism in real time, compare the detection data with the preset interval distance parameter of the fixed test site of the test mechanism 600, and provide accurate feedback basis for the driving of the carrier slide 421 by the variable distance module 411, thereby ensuring that the interval distances of the plurality of carrier tables 420 after the final adjustment are completely matched with the interval distance of the test site.

[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 a plurality of transfer nozzles 523. The transfer base frame 521 is slidingly connected to the transfer module 510 and is provided with at least one positioning module 5211 extending in the vertical direction. The transfer lifting frame 522 is slidingly connected to the positioning module 5211 and includes a docking plate 5221 provided at the bottom with a positioning pin 5223 that can be inserted into the positioning hole of the carrier disc 123. The transfer base frame 521 is the basic load-bearing component of the assembly and is slidingly connected to the transfer module 510, which 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-distance transition mechanism 400 and the test mechanism 600. The vertical positioning module 5211 provided above the transfer base frame 521 provides stable lifting guidance for the transfer lifting frame 522, avoiding deviation during lifting. The transfer lifting frame 522 is slidingly connected to the positioning module 5211 and can be flexibly lifted in the vertical direction, realizing the transfer of components between different height stations. The docking plate 5221 is the key structure for component loading and docking, and the positioning pin 5223 at the bottom can be accurately inserted into the positioning hole of the carrier disc 123, eliminating the positional deviation between the docking plate 5221 and the carrier disc 123 through mechanical positioning and ensuring that the components absorbed by the transfer nozzles 523 can be accurately placed at the preset position of the carrier disc 123 or the test station. The plurality of transfer nozzles 523 cooperate with the docking plate 5221 to simultaneously absorb batches of components, improving transfer efficiency and further ensuring the positional accuracy of component transfer and placement based on the accurate docking of the positioning pin 5223, providing reliable protection for the smooth development of subsequent test work.

[0046] Further, the docking plate 5221 is provided with an avoiding opening 5224 penetrating through the thickness direction of the docking plate 5221, the transfer lifting frame 522 is provided with a plurality of fine adjustment modules 5222 extending in the vertical direction, the docking plate 5221 is correspondingly arranged below the fine adjustment module 5222, and the transfer suction nozzle 523 is slidingly connected to the fine adjustment module 5222 and can contact the components after penetrating through the avoiding opening 5224. The avoiding opening 5224 is arranged in the middle of the docking plate 5221 and penetrates through the thickness direction of the docking plate 5221, thereby providing a vertical movement channel for the transfer suction nozzle 523. The avoiding opening 5224 avoids the structural interference of the docking plate 5221 on the transfer suction nozzle 523, ensures that the suction nozzle can smoothly penetrate through the docking plate 5221 and directly contact the components below, and creates a basic condition for subsequent suction or placement actions. The fine adjustment module 5222 extends in the vertical direction and is arranged on the transfer lifting frame 522, and is a core component for realizing the fine adjustment of the height of the transfer suction nozzle 523. The fine adjustment module 5222 provides stable sliding guidance for the transfer suction nozzle 523, can drive the suction nozzle to perform micron-level vertical displacement adjustment, compensates for the precision deviation of the overall lifting of the transfer lifting frame 522, and meets the high-precision requirement of component suction and placement. The docking plate 5221 is correspondingly arranged below the fine adjustment module 5222. On one hand, the docking plate 5221 is positioned by cooperating with the positioning hole of the carrier disc 123 through the positioning pin 5223 at the bottom, thereby completing the coarse positioning of the transfer assembly 520 and the carrier disc 123 and providing a reference position for the fine adjustment module 5222. On the other hand, the docking plate 5221 serves as a mounting and bearing structure of the fine adjustment module 5222 and the transfer suction nozzle 523, thereby ensuring the relative position stability of the components and providing structural support for the fine adjustment. The transfer suction nozzle 523 is slidingly connected to the fine adjustment module 5222 and can flexibly move in the vertical direction under the driving of the fine adjustment module 5222. The transfer suction nozzle 523 can penetrate through the avoiding opening 5224 of the docking plate 5221, directly contact the components, firmly grasp the components through negative pressure suction or the like, or stably release the components to the target position. The cooperation of the transfer suction nozzle 523 and the fine adjustment module 5222 ensures the position precision of each suction and placement action and avoids the shift or damage of the components.

[0047] In the embodiment, two material moving mechanisms 200, two distance changing transition mechanisms 400 and two transfer mechanisms 500 are arranged at the two ends of the horizontal conveying belt 122 respectively. This kind of structural layout can realize the parallel processing mode of component testing. The two ends can simultaneously receive and process different batches of components, thereby avoiding the waiting bottleneck during single mechanism operation, and especially suitable for the continuous testing requirement of large quantities of components. One end can be used for feeding action and the other end can be used for reverse action, which is not limited in the present application.

[0048] In this embodiment, the pitch changing test system further comprises a housing 900, a machine table 800, a control mechanism, an identification mechanism 300, and a sample stage 700. The transmission mechanism 100, the material moving mechanism 200, the pitch changing transition mechanism 400, the transfer mechanism 500, and the sample stage 700 are all arranged on the machine table 800 and located inside the housing 900. The identification mechanism 300 is located on one side of the material moving mechanism 200 and comprises a top identification camera 310, a bottom identification camera 320, and a code scanning NG buffer table 330. The top identification camera 310 is connected to the inside of the housing 900. The bottom identification camera 320 is connected to the machine table 800. The sample stage 700 and the code scanning NG buffer table 330 are both located within the working range of the material moving mechanism 200.

[0049] Specifically, the housing 900 provides a closed protection space for all internal mechanisms of the system. On the one hand, it isolates external dust, impurities, and environmental interference, avoiding the influence of pollutants on the test accuracy of components and the smoothness of mechanism movement. On the other hand, it plays a safety protection role, preventing operators from contacting moving mechanical parts, reducing noise diffusion during equipment operation, and creating a stable working environment. The machine table 800 is the basic bearing platform of the system, on which the transmission mechanism 100, the material moving mechanism 200, the pitch changing transition mechanism 400, the transfer mechanism 500, and the sample stage 700 are fixedly installed. It ensures the accuracy and stability of the installation position of each mechanism through high-strength structural design, avoids vibration or displacement during equipment operation, provides a unified reference for the coordinated action of each mechanism, and is the core support of the mechanical structure of the system. The control mechanism is the control and coordination center of the system, responsible for receiving and processing feedback signals from each mechanism, and outputting instructions to coordinate the operation of all components. It integrates positioning data from the identification mechanism 300, detection data from the pitch changing transition mechanism 400, and action signals from the transfer mechanism 500, realizes the automatic connection of material moving, pitch changing, transfer, testing, and other processes, ensures the accurate synchronization of the action of each mechanism, and guarantees the overall operation efficiency and test accuracy of the system. The identification mechanism 300 is located on one side of the material moving mechanism 200, and its core role is to provide accurate positioning and preliminary quality judgment for component transfer and screening. The top identification camera 310 is connected to the inside of the housing 900 and captures the two-dimensional code on the component in the tray 123 from above, accurately obtains the type of component and the applicable placement posture, and provides accurate positioning basis for the adsorption action of the material moving mechanism 200. The bottom identification camera 320 is installed on the machine table 800 and captures the information on the bottom of the component from below, supplements the blind area of the top identification, and ensures the overall judgment of the component state. The code scanning NG buffer table 330 is used to temporarily store components that are identified as unqualified (such as model mismatch, appearance defects), avoid the flow of unqualified products into the subsequent pitch changing and testing processes, guarantee the reliability of test results, and facilitate the subsequent centralized processing of unqualified samples.

[0050] The sample stage 700 is arranged on the machine table 800 and located within the working range of the material moving mechanism 200, and serves as a temporary storage and turnover platform for the components. The sample stage 700 provides a regular placement space for the components to be tested, facilitating the quick grabbing of the components by the material moving mechanism 200. Meanwhile, the sample stage 700 can temporarily store a batch of components, and balance the working efficiency of each process to avoid supply interruption or accumulation, thereby ensuring the continuous and stable operation of the system.

[0051] Embodiment Two

[0052] The embodiment provides a variable-distance testing method for testing components by using the variable-distance testing system of the embodiment one, which comprises the following steps: Step S1: moving a tray containing a plurality of components to be tested into the working range of the material moving mechanism; Step S2: moving the plurality of components to be tested into the variable-distance transition mechanism by the material moving mechanism, wherein the variable-distance transition mechanism adjusts the interval distance between the plurality of carrier tables to receive the components to be tested during the moving process. In this embodiment, step S2 specifically comprises the following steps: Step S21: capturing the position of the tray by the navigation camera on the material moving mechanism to navigate the moving path of the suction nozzle assembly thereon; Step S22: absorbing the plurality of components to be tested by the suction nozzle assembly and moving them into the identification mechanism for code scanning test to identify the interval distance between the plurality of components to be tested; Step S23: after the code scanning test result is transmitted to the variable-distance transition mechanism, the plurality of carrier tables adjust the interval distance therebetween to receive the plurality of components to be tested; Step S24: moving the plurality of components to be tested on the plurality of carrier tables synchronously until the interval distance between the adjacent two carrier tables is the same as the interval distance between the plurality of fixed test sites in the testing mechanism.

[0053] Step S3: adjusting the interval distance between the plurality of carrier tables so that the interval distance between the adjacent two carrier tables is the same as the interval distance between the plurality of fixed test sites in the testing mechanism; Step S4: moving the plurality of components after the variable-distance adjustment into the testing mechanism by the transfer mechanism for performance test.

[0054] In summary, compared with the conventional testing technology at the present stage, the application has the advantages of strong controllability, wide application scenarios, strong compatibility, high automation degree, etc., significantly improves the testing efficiency and quality of the components, and has a wide application prospect in the industry.

[0055] Obviously, the above embodiments are merely example for clearly illustrating, and are not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A variable pitch test system, characterized by: The utility model relates to a kind of test equipment for electronic components, including: Transmission mechanism, the transmission mechanism includes horizontal transmission component and lifting buffer component, the horizontal transmission component includes horizontal transmission belt and carrier disc, the horizontal transmission belt extends along the first direction, the carrier disc is arranged on the horizontal transmission belt, the component to be tested is arranged in the carrier disc, the lifting buffer component is arranged at the end of the horizontal transmission belt; Variable distance transition mechanism, the variable distance transition mechanism includes fixed support and multiple bearing tables, the fixed support is provided with variable distance module extending along the horizontal direction, multiple bearing tables are respectively connected to the variable distance module, any bearing table is used to accommodate a component to be tested, to adjust the distance between the components to be tested; Material moving mechanism, the material moving mechanism is arranged between the transmission mechanism and the variable distance transition mechanism, to transfer the component to be tested between the transmission mechanism and the variable distance transition mechanism; Test mechanism, the test mechanism is located on one side of the horizontal transmission belt, and multiple fixed test sites are arranged in the test mechanism; Transfer mechanism, the transfer mechanism includes transfer module and transfer assembly, the transfer module is arranged between the test mechanism and the horizontal transmission belt, extends along the first direction, and the end of the transfer module extends to one side of the variable distance transition mechanism, the transfer assembly is slidably connected to the transfer module, and includes multiple transfer suction nozzles to transfer components between the test mechanism and the variable distance transition mechanism, wherein the distance between multiple transfer suction nozzles is the same as the distance between the fixed test sites.

2. The variable distance testing system of claim 1, wherein: The transmission mechanism includes two lifting buffer components, and the two lifting buffer components are arranged at two ends of the horizontal transmission belt to respectively load and unload the carrier disc containing components.

3. The variable pitch test system of claim 1, wherein: The lifting buffer component includes buffer frame, lifting frame and two butt joint transmission belts, the buffer frame includes first width adjusting module and lifting module, the first width adjusting module extends along the second direction, and two butt joint transmission belts are slidably connected to the first width adjusting module to relatively move close to or away from each other, the butt joint transmission belts extend along the first direction and can be butt jointed with external tray supply mechanism, the lifting module extends along the vertical direction, and the lifting frame is slidably connected to the lifting module and moves up and down above the first width adjusting module.

4. The variable pitch test system of claim 1, wherein: The horizontal transmission component includes transmission frame and two horizontal transmission belts, the transmission frame includes second width adjusting module, the second width adjusting module extends along the second direction, and two horizontal transmission belts are slidably connected to the second width adjusting module to relatively move close to or away from each other, and the second direction edge of the carrier disc is respectively connected to two horizontal transmission belts.

5. The variable pitch test system of claim 1, wherein: The transmission mechanism further comprises at least one disc separating assembly, the disc separating assembly comprises a disc separating connecting frame arranged on both sides of the horizontal transmission belt, a horizontal disc separating slide, a vertical disc separating slide and at least one disc separating claw, the disc separating connecting frame is connected to the transmission frame of the horizontal transmission assembly, the horizontal disc separating slide is slidingly connected to the disc separating connecting frame in the second direction, the vertical disc separating slide is slidingly connected to the horizontal disc separating slide in the vertical direction, at least one disc separating claw is fixedly connected to the vertical disc separating slide and extends towards the horizontal transmission belt to move to the bottom of the disc and lift the disc.

6. The variable pitch test system of claim 1, wherein: The material moving mechanism comprises a mechanical arm, a rotary joint, a mounting frame, a navigation camera and a plurality of suction nozzle assemblies, the rotary joint is connected to the moving end of the mechanical arm, the mounting frame is connected to the rotary joint to rotate around the rotary center line through the rotary joint, the navigation camera and the suction nozzle assemblies are respectively connected to the mounting frame, wherein the plurality of suction nozzle assemblies respectively suck components.

7. The variable pitch test system of claim 6, wherein: The mounting frame is provided with a plurality of suction nozzle adjusting modules, the plurality of suction nozzle adjusting modules extend along the height direction of the mounting frame, the plurality of suction nozzle assemblies are respectively arranged corresponding to the plurality of suction nozzle adjusting modules, any suction nozzle assembly comprises a docking suction head, an elastic member and an adjusting frame, the adjusting frame is slidingly connected to the corresponding suction nozzle adjusting module, the docking suction head is connected to the adjusting frame, and the elastic member is arranged between the docking suction head and the adjusting frame.

8. The variable pitch test system of claim 1, wherein: The distance changing transition mechanism further comprises a component detector and a distance detector, the bearing table comprises a bearing slide and a quick-change disc, the bearing slide is slidingly connected to the distance changing module, the quick-change disc is connected to the bearing slide and is provided with a component accommodating groove, and components are arranged in the component accommodating groove, the component detector and the distance detector are respectively arranged on the bearing slide, wherein the component detector is arranged towards the component accommodating groove, and the distance detector is arranged towards the adjacent bearing table to detect the interval distance of the adjacent bearing table.

9. The variable pitch test system of claim 1, wherein: The transfer assembly comprises a transfer base frame, a transfer lifting frame and a plurality of transfer suction nozzles, the transfer base frame is slidingly connected to the transfer module and is provided with at least one positioning module extending in the vertical direction, the transfer lifting frame is slidingly connected to the positioning module and comprises a docking plate, and the docking plate is provided with a positioning pin at the bottom, and the positioning pin can be penetrated into the positioning hole of the disc.

10. The variable pitch test system of claim 9, wherein: The docking plate is provided with an avoiding opening penetrating through the thickness direction thereof in the middle portion, the transfer lifting frame is provided with a plurality of fine adjustment modules extending in the vertical direction, the docking plate is correspondingly arranged below the fine adjustment modules, the transfer suction nozzles are slidingly connected to the fine adjustment modules and can contact components after penetrating through the avoiding opening.

11. The variable pitch test system of claim 1, wherein: The variable distance test system further comprises a housing, a machine table, a control mechanism, an identification mechanism and a sample stage, the transmission mechanism, the material moving mechanism, the variable distance transition mechanism, the transfer mechanism and the sample stage are arranged on the machine table and located inside the housing, the identification mechanism is located on one side of the material moving mechanism and comprises a top identification camera, a bottom identification camera and a code scanning NG buffer table, the top identification camera is connected to the housing and located inside the housing, the bottom identification camera is connected to the machine table, and the sample stage and the code scanning NG buffer table are located within the working range of the material moving mechanism.

12. A variable pitch testing method, characterized by: The variable distance test system according to any one of claims 1-11 is used for variable distance test of components, which comprises: S1, moving a tray containing a plurality of components to be tested into the working range of the material moving mechanism; S2, moving a plurality of components to be tested into the variable distance transition mechanism by the material moving mechanism, and in the moving process, the variable distance transition mechanism adjusts the interval distance of a plurality of supporting tables therein to receive the components to be tested; S3, adjusting the interval distance between a plurality of supporting tables to make the interval distance between two adjacent supporting tables the same as the interval distance of a plurality of fixed test sites in the test mechanism; S4, moving a plurality of components after variable distance by the transfer mechanism into the test mechanism for performance test.

13. The variable pitch testing method of claim 12, wherein: S2 specifically comprises: S21, taking a picture of the tray position by the navigation camera on the material moving mechanism to navigate the moving path of the suction nozzle assembly thereon; S22, absorbing a plurality of components to be tested by the suction nozzle assembly and moving them into the identification mechanism for code scanning test to identify the interval distance between a plurality of the components to be tested; S23, after the code scanning test result is transmitted to the variable distance transition mechanism, a plurality of the supporting tables adjust their adjacent intervals to receive a plurality of the components to be tested; S24, a plurality of the supporting tables drive the components to be tested thereon to move synchronously until the interval distance between two adjacent supporting tables is the same as the interval distance of a plurality of fixed test sites in the test mechanism.

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