An execution component and test system

Abstract

This application provides an execution component and a testing system, relating to the field of testing technology. The execution component is used in conjunction with a test chamber to complete the testing of a test piece. The execution component includes: a horizontal drive mechanism, a vertical drive mechanism, and a pressure unit; the vertical drive mechanism is connected to the horizontal drive mechanism, and the horizontal drive mechanism is used to drive the vertical drive mechanism to move horizontally; the vertical drive mechanism is used to drive the pressure unit to move vertically; the pressure unit is connected to the output end of the vertical drive mechanism, and the pressure unit is used to press the test piece in the test chamber down to the test position; wherein, the pressure unit includes a first pressure element and a second pressure element; the area of ​​the projection of the first pressure element on the test piece is larger than the area of ​​the projection of the second pressure element on the test piece; and the second pressure element is symmetrically arranged on the first pressure element.

Description

Technical Field

[0001] This application relates to the field of testing technology, and more specifically, to an execution component and a testing system. Background Technology

[0002] In semiconductor testing, as packages become increasingly thinner and smaller, the requirements for zero-displacement positioning on testing equipment are also rising. The real problem is that even a trace amount of residual adhesive between the indenter and the product can cause unpredictable adhesion at the moment of separation—sometimes lifting the product, sometimes causing it to fall randomly in mid-air. If the chip deviates from the testing chamber, the nozzle will misalign on the next pick-up, triggering a vacuum alarm, requiring the machine to stop, the cap opened, and manual reset. If the chip is dropped or bumped, it can cause secondary damage. Currently, the industry can only remedy the situation afterward; solutions for automatically removing residual adhesive before cap opening and ensuring the chip remains in its original position are still immature, becoming one of the bottlenecks limiting further improvements in overall production line cycle time and yield. Utility Model Content

[0003] In view of this, the purpose of this application is to provide an execution component and a testing system to improve the above-mentioned problems existing in the prior art.

[0004] In a first aspect, embodiments of this application provide an execution component for cooperating with a test chamber to complete the testing of a test piece. The execution component includes: a horizontal drive mechanism, a vertical drive mechanism, and a pressure unit; the vertical drive mechanism is connected to the horizontal drive mechanism, and the horizontal drive mechanism is used to drive the vertical drive mechanism to move horizontally; the vertical drive mechanism is used to drive the pressure unit to move vertically; the pressure unit is connected to the output end of the vertical drive mechanism, and the pressure unit is used to press the test piece in the test chamber down to the test position; wherein, the pressure unit includes a first pressure element and a second pressure element; the area of ​​the projection of the first pressure element on the test piece is greater than the area of ​​the projection of the second pressure element on the test piece; and the second pressure element is symmetrically arranged on the first pressure element.

[0005] In the above implementation process, by setting up horizontal and vertical drive mechanisms, the pressure unit can be moved precisely in the horizontal and vertical directions, thereby stably pressing the test piece to the test position. The pressure unit adopts a combination design of a first pressure element and symmetrically arranged second pressure elements. The first pressure element provides uniform pressure over a large area, while the second pressure element enhances local pressure and balance, ensuring uniform and stable pressure distribution during the test, and improving test accuracy and reliability.

[0006] Optionally, the first pressure element includes a pressure block, and the second pressure element includes at least two crimping pins; the pressure block has an internal mounting hole, and the crimping pins are fixedly installed in the mounting hole and symmetrically arranged around the center of the pressure block.

[0007] In the above implementation process, the first pressure element includes a pressure block, and the second pressure element includes crimping pins. Mounting holes are formed inside the pressure block, allowing the crimping pins to be symmetrically fixed around the center of the pressure block. During the initial pressing phase, the symmetrically arranged crimping pins first contact the test piece, achieving rapid initial positioning and absorbing some of the impact through the slight elastic deformation of the pins, thus preventing displacement or damage caused by the pressure block's large-area instantaneous contact. When the bottom surface of the pressure block finally adheres to the test piece, the large-area uniform pressure of the pressure block is applied comprehensively within the pre-positioned area, ensuring uniform stress on the test piece without localized warping, significantly improving the compression coaxiality and test repeatability accuracy.

[0008] Optionally, the crimping pin is symmetrically disposed on the portion of the pressing block near its edge.

[0009] In the above process, placing the crimping pins near the edge of the pressure block allows them to be positioned around the test piece in advance, preventing any possible lateral slippage. When the pressure block continues to descend, the test piece is already aligned with the crimping pins, so the pressure block will not be misaligned when it presses down over a large area. The entire pressing process is more stable and the test position is more accurate.

[0010] Optionally, the crimping needle includes: a sleeve, an elastic element, a first needle tip, and a second needle tip; the elastic element is disposed inside the sleeve; wherein, when not subjected to pressure from the first pressure element, the elastic element is in a pre-compressed state; the first needle tip and the second needle tip are respectively disposed at both ends of the sleeve, and the first needle tip and the second needle tip are respectively connected to both ends of the elastic element.

[0011] In the above process, the elastic element is pre-compressed within the sleeve, and its two ends abut against the first and second needle tips, respectively. During the pressing process, if any needle tip touches the test piece first, the elastic element is further compressed, absorbing the impact load and generating a controllable rebound force, so that all crimping needles simultaneously contact the test piece within the elastic range, achieving buffer protection and uniform positioning.

[0012] Optionally, the first needle tip is positioned toward the test chamber, and the second needle tip is connected to the pressure block.

[0013] In the above implementation process, after the first needle tip is oriented towards the test cavity and the second needle tip is fixed to the pressure block, the downward movement of the pressure block can be directly transmitted through the second needle tip, the elastic element, and the first needle tip without the need for an additional floating component. The elastic element is always clamped in the sleeve, which not only prevents lateral instability but also allows the first needle tip to retract and buffer immediately when it contacts the test piece, ensuring that all needle tips are simultaneously subjected to force within the same elastic stroke, further improving positioning accuracy and avoiding damage to the surface of the test piece.

[0014] Optionally, the diameter of the first needle tip is 0.20-0.25 mm.

[0015] In the above process, the first needle tip has a small contact area of ​​0.20-0.25 mm, resulting in high pressure per unit area and forming a stable, low-resistance electrical and mechanical contact. A diameter greater than 0.20 mm avoids the needle tip being too sharp, which could cause plastic deformation or breakage during the pre-pressing and buffering stages, ensuring the positional repeatability accuracy after multiple presses. A diameter less than 0.25 mm prevents the pressure from dropping due to an excessively large contact area, while also reducing the risk of damage to the coating or film on the surface of the test piece.

[0016] Optionally, the end of the first needle tip is a tapered structure, and the cone angle of the tapered structure is 90 degrees.

[0017] In the above implementation process, the 90° cone angle makes the tip of the needle tip form a sufficiently blunt transition, which retains the ability of the sharp edge to pierce the oxide layer or surface dirt, while avoiding premature wear or breakage caused by excessive sharpness, thus improving service life. Under the same tip diameter, the contact ring area corresponding to the 90° cone angle is moderate, ensuring stable local contact pressure and small fluctuations in electrical contact resistance, which is beneficial to the consistency of subsequent test signals.

[0018] Secondly, this application also provides a testing system, which includes: a control unit and the aforementioned execution component; the execution component is communicatively connected to the control unit; the execution component is used to receive signals from the control unit and press the test piece in the test chamber down to the test position.

[0019] In the above process, the control unit sends position and pressure commands to the execution component. The horizontal and vertical drive mechanisms act in sequence, causing the pressure unit to enter the test chamber along the set trajectory. The pressure pin and the pressure block are pressed onto the test piece in sequence. The elastic stroke of the pressure pin is fed back to the control unit in real time, so that the test piece can stably reach the test position, providing a reliable benchmark for subsequent electrical or mechanical performance tests.

[0020] Optionally, the testing system further includes: a transport component, a test chamber, and a frame; the control unit and the transport component are mounted on the frame, and the control unit is electrically connected to the transport component and the execution component; the test chamber is disposed on the frame and is used to accommodate the test piece; the transport component is used to receive signals from the control unit and transport the test piece into the test chamber.

[0021] In the above implementation process, the frame serves as the overall reference, integrating the control unit, transport components, and test chamber within the same rigid frame. After the control unit issues commands, the transport components first move the test piece from the loading / unloading stage to the test chamber and precisely position it. Subsequently, the execution components complete the pressing according to the preset procedure. The entire process is coordinated by the same control unit, achieving integration of transport, positioning, pressing, and testing, reducing intermediate handover errors, and improving system cycle time and repeatability accuracy.

[0022] Optionally, the control unit is a programmable logic controller.

[0023] In the above implementation process, a programmable logic controller (PLC) is used as the control unit. Its mature motion control module and multi-axis interface can be directly utilized to synchronously schedule the servo drivers of the conveying components and the stepper / servo motors of the execution components. Through ladder diagram or structured text programming, logic interlocking, fault self-diagnosis and real-time I / O response can be quickly realized, shortening the development cycle.

[0024] Optionally, the conveying assembly includes a vacuum nozzle and a solenoid valve; the solenoid valve is electrically connected to the vacuum nozzle and electrically connected to the control unit; the control unit is configured to drive the solenoid valve to control the vacuum nozzle to pick up the test piece.

[0025] In the above implementation process, the control unit outputs a digital signal to the solenoid valve coil, and the solenoid valve switches the vacuum circuit, so that a negative pressure is instantly formed inside the vacuum nozzle. The negative pressure value is monitored in real time by the PLC analog input. When the vacuum degree reaches the set threshold, the PLC issues the next movement command to ensure that the test piece is reliably adsorbed without the risk of slippage, while avoiding stress damage to thin or brittle test pieces by the mechanical grippers.

[0026] Optionally, the frame is further provided with a preheating zone; the preheating zone includes a heating device for preheating the test piece before testing.

[0027] In the above process, the rack integrates a preheating zone, and the heating device raises the test piece to the target temperature in advance, so that parameters such as the thermal expansion coefficient and resistivity of the material are stabilized in advance; then the transport assembly sends the preheated test piece into the test chamber, and the execution assembly immediately presses the test to eliminate test drift caused by temperature rise gradient and ensure data consistency and repeatability accuracy under high temperature conditions. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a first schematic diagram of the execution component provided in an embodiment of this application; Figure 2 This is a second schematic diagram of the execution component provided in an embodiment of this application; Figure 3 A schematic diagram of the pressing block provided in an embodiment of this application; Figure 4 This is a schematic diagram of the crimping pin provided in an embodiment of this application.

[0030] Icons: 001 - Test piece; 002 - Horizontal drive mechanism; 003 - Vertical drive mechanism; 100 - Pressure unit; 110 - First pressure element; 111 - Pressure block; 120 - Second pressure element; 121 - Crimping needle; 1211 - First needle tip; 1212 - Second needle tip; 1213 - Sleeve; 130 - Test chamber. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0032] In the current testing process, the pressure unit is pressed down in a single, continuous motion. Although the amount of residual colloid on the surface of the test piece is small, it is enough to create a randomly distributed adhesive force between the bottom of the pressure unit and the test piece. At the moment the pressure unit rises vertically after the test, this adhesive force often exceeds the frictional force between the test piece and the positioning wall of the test chamber, causing the test piece to be lifted up as a whole. When the adhesive force subsequently weakens due to vibration or gravity, the test piece falls from an arbitrary height, with the landing point deviating from the original test position. The offset is unpredictable and often exceeds the compensation range of the suction nozzle of the transport component, causing vacuum detection failure alarms. Operators must manually reset the unit by opening the cover, resulting in a shutdown of at least 3 to 5 minutes per instance, forcing an interruption of the entire production line. Furthermore, the impact of the drop can easily cause dents and scratches on the edges of the test piece, introducing secondary defects.

[0033] To address the above-mentioned technical deficiencies, embodiments of this application provide an execution component. Figure 1 This is a first schematic diagram of the execution component provided in an embodiment of this application.

[0034] The execution component is used to cooperate with the test chamber 130 to complete the test of the test piece 001. The execution component includes: a horizontal drive mechanism 002, a vertical drive mechanism 003, and a pressure unit 100; the vertical drive mechanism 003 is connected to the horizontal drive mechanism 002, and the horizontal drive mechanism 002 is used to drive the vertical drive mechanism 003 to move horizontally; the vertical drive mechanism 003 is used to drive the pressure unit 100 to move vertically; the pressure unit 100 is connected to the output end of the vertical drive mechanism 003, and the pressure unit 100 is used to press the test piece 001 in the test chamber 130 down to the test position; wherein, the pressure unit 100 includes a first pressure element 110 and a second pressure element 120; the area of ​​the projection of the first pressure element 100 on the test piece 001 is larger than the area of ​​the projection of the second pressure element 120 on the test piece 001; and the second pressure element 120 is symmetrically arranged on the first pressure element 110.

[0035] Optionally, the second pressure element 120 can be symmetrically arranged on the first pressure element 110 in a diagonal manner, with four second pressure elements 120 located at the four corners of the diagonal of the first pressure element 110, suitable for rectangular workpieces and preventing lateral rotation; the second pressure elements 120 can also be symmetrically arranged on the first pressure element 110 in a triangular manner, for example, three second pressure elements 120 are distributed at 120° on the same pitch circle, suitable for round or small-sized workpieces; the second pressure elements 120 can also be symmetrically arranged on the first pressure element 110 in a bilateral manner, with two second pressure elements 120 located at the center of the long side and the other two second pressure elements 120 corresponding to the center of the short side of the first pressure element 110; the second pressure elements 120 can also be symmetrically arranged on the first pressure element 110 in a concentric circle manner, for example, six second pressure elements 120 are evenly distributed on the same circumference, with the center of the circle coinciding with the geometric center of the first pressure element 110, used for large-sized thin plates and reducing local warping.

[0036] Based on the above structure, the testing process is as follows: the horizontal drive mechanism 002 first moves horizontally to deliver the pressure unit 100 above the test chamber 130; the vertical drive mechanism 003 then moves downward, and the second pressure element 120 contacts the test piece 001, achieving rapid initial positioning and offsetting lateral displacement; continuing to press down, the large-area pressure block 111 of the first pressure element 110 falls into place, firmly pressing the test piece 001 into the test position. These two steps are completed consecutively, avoiding adhesion and displacement caused by residual adhesive and ensuring uniform pressure distribution. After the test, when the pressure head rises, the test piece 001 remains in its original position, and the nozzle can be directly removed, reducing downtime. This application breaks down the pressure unit 100 into a two-stage sequence: the second pressure element 120 first makes a point-contact positioning, and the first pressure element 110 then compacts over a large area. The second pressure element 120 is first lightly adjusted, and then the first pressure element 110 is compacted. After the test, the pressure head rises, and the test piece 001 remains in the test position and can be directly removed. This completely eliminates the entire fault chain caused by the workpiece being lifted or dropped by the pressure head due to residual adhesive, resulting in positional displacement that prevents the nozzle from catching it, leading to equipment alarm and shutdown. This prevents the equipment from stopping due to such problems.

[0037] Optionally, the horizontal drive mechanism 002 can be a synchronous belt linear module or a ball screw slide; the vertical drive mechanism 003 can be a ball screw pair driven by a servo motor or a cylinder guide combination.

[0038] In one embodiment of this application, please refer to Figure 2 , Figure 3 , Figure 2 This is a second schematic diagram of the execution component provided in an embodiment of this application. Figure 3 This is a schematic diagram of the pressing block 111 provided in an embodiment of this application.

[0039] The first pressure element 110 includes a pressure block 111, and the second pressure element 120 includes at least two crimping pins 121; the pressure block 111 has an internal mounting hole, and the crimping pins 121 are fixedly installed in the mounting hole and symmetrically arranged around the center of the pressure block 111.

[0040] Optionally, the area of ​​the projection of the first pressure element 100 on the test piece 001 is larger than the area of ​​the projection of the second pressure element 120 on the test piece 001. The area ratio can be between 4:1 and 20:1: at the lower end, the pressure per unit area of ​​the crimping pin 121 is sufficient, and the pressure per unit area of ​​the pressure block 111 is relatively high, which is suitable for ordinary workpieces; at the upper end, the pressure per unit area of ​​the pressure block 111 is low, which can protect the ultra-thin substrate, but the positioning sensitivity decreases; the middle 9:1 is the preferred balance point that takes into account both positioning accuracy and surface safety.

[0041] Preferably, the projected area of ​​the first pressure element 110 (bottom surface of the pressure block 111) on the workpiece is greater than 9 times (i.e., 9:1) the projected area of ​​the second pressure element 120 (the sum of the contact circles of all the crimping pins 121). The crimping pins 121 provide sufficient positioning pressure without damaging the surface; the block area covers the main stress surface of the workpiece, ensuring uniform overall pressure and low residual stress.

[0042] Based on the above structure, the testing process is as follows: the pressure block 111, acting as the first pressure element 110, descends as a whole. The symmetrically arranged crimping pins 121 first extend out of the mounting hole and touch the test piece 001 to complete the initial positioning. Then, the bottom surface of the pressure block 111 adheres to the test piece 001, applying large-area compression. The crimping pins 121 and the pressure block 111 operate in steps, preventing the test piece 001 from shifting laterally and ensuring uniform pressure. After the test, the pressure block 111 rises back, leaving the test piece 001 in its original position, avoiding displacement or falling due to residual adhesive adhesion.

[0043] Optionally, the crimping pins 121 are symmetrically arranged on the portion of the crimping block 111 near its edge.

[0044] The annular area 0-10 mm inside the outer contour of the contact surface between the edge pressure block 111 and the test piece 001; the symmetry includes: diagonal symmetry, with four pressure pins 121 located near the four opposite corners of the rectangular pressure block 111; edge symmetry, with two pressure pins 121 close to the center of a pair of long sides, and the other two pressure pins 121 correspondingly close to the center of another pair of short sides; triangular symmetry, with three pressure pins 121 evenly distributed on the same pitch circle, the center of which coincides with the geometric center of the pressure block 111.

[0045] Based on the above structure implementation process, the crimping pins 121 are symmetrically arranged near the edge of the pressure block 111. When pressed down, the four points first touch the test piece 001 to form an outer limit. The pressure block 111 can automatically guide the center as it continues to move down. The test piece 001 is fixed in position in advance, and it will not move after large-area pressing. After the test is completed, the position of the lifting head remains unchanged and can be directly removed later.

[0046] Alternatively, the material of the pressure block 111 can be stainless steel or hard anodized aluminum, which is wear-resistant, rust-free, and easy to clean.

[0047] Optionally, the shape of the pressure block 111 can be a rectangle, a circle, or an irregular plate that can fit together on the bottom surface, with a threaded interface on the top surface to connect with the vertical drive mechanism 003, and chamfered edges around the edges to prevent scratches.

[0048] Optionally, please refer to, Figure 4 This is a schematic diagram of the crimping pin 121 provided in an embodiment of this application.

[0049] The crimping needle 121 includes: a sleeve 1213, an elastic element (not shown), a first needle tip 1211, and a second needle tip 1212; the elastic element is disposed inside the sleeve 1213; wherein, when not subjected to pressure from the first pressure element 110, the elastic element is in a pre-compressed state; the first needle tip 1211 and the second needle tip 1212 are respectively disposed at both ends of the sleeve 1213, and the first needle tip 1211 and the second needle tip 1212 are respectively connected to both ends of the elastic element.

[0050] Based on the above structural implementation process, the sleeve 1213 has a pre-compressed elastic element at both ends, which abut against the first needle tip 1211 and the second needle tip 1212 respectively. When unloaded, the elastic element is already compressed. After the first needle tip 1211 touches the test piece 001, it immediately retracts to buffer the impact and store the rebound force. The pressure block 111 continues to press down, further compressing the elastic element, so that all needle tips remain in contact within the same stroke. This protects the surface of the test piece 001 and provides a stable fulcrum, ensuring that the test piece 001 does not shift or lift when the pressure block 111 presses down subsequently.

[0051] Alternatively, the elastic element can be a stainless steel compression spring or a phosphor bronze wave spring, which is fatigue-resistant, corrosion-resistant, and can provide stable rebound force within a short stroke.

[0052] Optionally, the first tip 1211 and the second tip 1212 can be made of quenched stainless steel, tungsten steel or gold-plated brass, taking into account wear resistance, deformation resistance and good conductivity, to ensure that the tip shape and stable pressure are maintained even after long-term contact with the test piece.

[0053] Optionally, the first needle tip 1211 is positioned toward the test chamber 130, and the second needle tip 1212 is connected to the pressure block 111.

[0054] Based on the above structural implementation process, the first needle tip 1211 faces downwards towards the test cavity 130, responsible for contacting the test piece 001; the second needle tip 1212 faces upwards against the pressure block 111, transmitting the downward pressure of the pressure block 111 to the first needle tip 1211 via the elastic element. When the pressure block 111 descends, the force transmission direction is pressure block 111, second needle tip 1212, elastic element, first needle tip 1211, and test piece 001. The elastic element contracts immediately, both buffering the impact and ensuring that each needle independently contacts the target. After the test piece 001 is positioned, the pressure block 111 continues to descend, and the elastic element no longer compresses further to avoid overpressure.

[0055] Optionally, the needle tip diameter of the first needle tip 1211 is 0.20-0.25 mm.

[0056] Based on the above structure implementation process, a diameter of 0.20-0.25mm is sufficiently fine to pierce the surface residual adhesive or oxide layer at the moment of pressing down, forming a stable, low-resistance conductive contact point; it is not too sharp to avoid plastic deformation or breakage during elastic retraction, ensuring that the needle tip still maintains its original shape and contact area after tens of thousands of pressing cycles; this size range matches the inner hole of the sleeve and the wire diameter of the elastic element, allowing the direct selection of standard micro springs and precision tubing, reducing processing and assembly costs.

[0057] Optionally, the end of the first needle tip 1211 is a conical structure, and the cone angle of the conical structure is 90 degrees.

[0058] Based on the above structure implementation process, the conical surface generates a radial force when it contacts the workpiece, automatically aligns itself when pressed down, and corrects minor positional deviations; the 90° angle balances sharpness and strength, which can pierce residual glue or oxide layer, and is not easily worn or chipped.

[0059] Secondly, this application also provides a testing system, which includes: a control unit and the aforementioned execution component; the execution component is communicatively connected to the control unit; the execution component is used to receive signals from the control unit and press the test piece 001 in the test cavity 130 down to the test position.

[0060] Based on the above structure implementation process, the control unit issues a command, the horizontal drive mechanism 002 first moves to above the test chamber 130, the vertical drive mechanism 003 then presses down, the crimping pin 121 of the second pressure element 120 first contacts the test piece 001 for positioning, and the pressing block 111 of the first pressure element 110 then presses down over a large area to complete the pressing action; the entire process is controlled in real time by the control unit to ensure accurate pressing position and stable pressure, thereby improving test consistency and efficiency.

[0061] Optionally, the testing system further includes: a transport component, a test chamber 130, and a frame; the control unit and the transport component are mounted on the frame, and the control unit is electrically connected to the transport component and the execution component; the test chamber 130 is disposed on the frame and is used to accommodate the test piece 001; the transport component is used to receive signals from the control unit and transport the test piece 001 into the test chamber 130.

[0062] Based on the above structural implementation process, the control unit issues a command: the horizontal drive mechanism 002 first moves above the test chamber 130, then the vertical drive mechanism 003 presses down. The crimping pin 121 of the second pressure element 120 first contacts the test piece 001 for positioning, and then the pressing block 111 of the first pressure element 110 subsequently presses down over a large area, completing the pressing action. The entire process is controlled in real time by the control unit to ensure accurate pressing position and stable pressure, improving test consistency and efficiency.

[0063] Optionally, the control unit is a programmable logic controller (PLC).

[0064] Based on the above structure implementation process, a programmable logic controller (PLC) is used as the control unit. Through digital and analog modules, the motors, solenoid valves and sensors of the conveying and execution components are directly driven to achieve real-time logic control and fault self-diagnosis, simplify wiring, shorten the development cycle and meet the requirements for stable operation.

[0065] Optionally, the transport assembly (not shown) includes: a vacuum nozzle and a solenoid valve; the solenoid valve is electrically connected to the vacuum nozzle and electrically connected to the control unit; the control unit is configured to drive the solenoid valve to control the vacuum nozzle to pick up the test piece 001.

[0066] Based on the above structure, the PLC outputs a switching signal to the solenoid valve, which switches the vacuum circuit. The vacuum nozzle instantly generates negative pressure and adsorbs the test piece 001. After being moved into place, the PLC closes the solenoid valve, releasing the negative pressure, and the test piece 001 is accurately placed in the test chamber 130. The entire pick-and-place process is fast and stress-free, making it suitable for thin test pieces 001 or those with residual adhesive on the surface.

[0067] Optionally, the frame is further provided with a preheating zone (not shown); the preheating zone includes a heating device for preheating the test piece 001 before testing.

[0068] Based on the above structure implementation process, the transport assembly first places the test piece 001 into the preheating zone on the frame, and the heating device preheats it to the set temperature. After reaching the target temperature, the transport assembly then sends the preheated test piece 001 into the test chamber 130. Preheating stabilizes the dimensions and electrical parameters of the test piece 001 in advance, eliminates temperature rise drift during the test, ensures consistent high-temperature test results, and dries surface moisture, reducing contact resistance fluctuations.

[0069] Optionally, the preheating temperature range is 20℃~125℃, with a commonly used range of 85℃±5℃; the specific value is set according to the requirements of the workpiece specification.

[0070] In summary, this application provides an execution component and a testing system, relating to the field of testing technology. The execution component is used in conjunction with a test chamber 130 to complete the testing of a test piece 001. The execution component includes: a horizontal drive mechanism 002, a vertical drive mechanism 003, and a pressure unit 100; the vertical drive mechanism 003 is connected to the horizontal drive mechanism 002, and the horizontal drive mechanism 002 is used to drive the vertical drive mechanism 003 to move horizontally; the vertical drive mechanism 003 is used to drive the pressure unit 100 to move vertically; the pressure unit 100 is connected to the output end of the vertical drive mechanism 003, and the pressure unit 100 is used to press the test piece 001 in the test chamber 130 down to the test position; wherein, the pressure unit 100 includes a first pressure element 110 and a second pressure element 120; the area of ​​the projection of the first pressure element 100 onto the test piece 001 is larger than the area of ​​the projection of the second pressure element 120 onto the test piece 001; and the second pressure element 120 is symmetrically arranged on the first pressure element 110. When the pressure block 111 moves upward, the test piece 001 first breaks away from the contact with the crimping pin 121. As it continues to move upward, it will break away from the contact with the pressure block 111 that carries the test piece 001. Once the test piece 001 is suspended in the air, the crimping pin 121 on the pressure block 111 uses its elasticity to forcibly separate the test piece 001 from the pressure block 111. The pressure block 111 continues to move upward, and the test piece 001 remains in the test cavity 130.

[0071] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An execution component, characterized in that, The execution component is used to cooperate with the test chamber to complete the test of the test piece. The execution component includes: a horizontal drive mechanism, a vertical drive mechanism, and a pressure unit. The vertical drive mechanism is connected to the horizontal drive mechanism, and the horizontal drive mechanism is used to drive the vertical drive mechanism to move horizontally; the vertical drive mechanism is used to drive the pressure unit to move vertically. The pressure unit is connected to the output end of the vertical drive mechanism, and the pressure unit is used to press the test piece in the test chamber down to the test position. The pressure unit includes a first pressure element and a second pressure element; the area of ​​the projection of the first pressure element on the test piece is greater than the area of ​​the projection of the second pressure element on the test piece; and the second pressure element is symmetrically arranged on the first pressure element.

2. The execution component according to claim 1, characterized in that, The first pressure element includes a pressure block, and the second pressure element includes at least two crimping pins; The pressure block has an installation hole inside, and the crimping pin is fixedly installed in the installation hole and symmetrically arranged around the center of the pressure block.

3. The execution component according to claim 2, characterized in that, in, The crimping pins are symmetrically arranged on the portion of the pressing block near its edge.

4. The execution component according to claim 2, characterized in that, The crimping needle includes: a sleeve, an elastic element, a first needle tip, and a second needle tip; The elastic element is disposed inside the sleeve; wherein, when not subjected to pressure from the first pressure element, the elastic element is in a pre-compressed state; The first needle tip and the second needle tip are respectively disposed at both ends of the sleeve, and the first needle tip and the second needle tip are respectively connected to both ends of the elastic element.

5. The execution component according to claim 4, characterized in that, in, The first needle tip is positioned toward the test chamber, and the second needle tip is connected to the pressure block.

6. The execution component according to claim 4, characterized in that, in, The diameter of the first needle tip is 0.20-0.25 mm.

7. The execution component according to claim 4, characterized in that, in, The end of the first needle tip has a tapered structure, and the tapered angle of the tapered structure is 90 degrees.

8. A testing system, characterized in that, The test system includes: a control unit and an execution component as described in any one of claims 1 to 7; The execution component is communicatively connected to the control unit; The execution component is used to receive signals from the control unit and press the test piece in the test chamber down to the test position.

9. The testing system according to claim 8, characterized in that, The testing system also includes: a transport assembly, a testing chamber, and a frame; The control unit and the conveying assembly are mounted on the rack, and the control unit is electrically connected to the conveying assembly and the execution assembly. The test chamber is mounted on the frame and is used to accommodate the test piece; the transport assembly is used to receive signals from the control unit and transport the test piece into the test chamber.

10. The testing system according to claim 9, characterized in that, The control unit is a programmable logic controller.

11. The testing system according to claim 9, characterized in that, The transport assembly includes: a vacuum nozzle and a solenoid valve; The solenoid valve is electrically connected to the vacuum nozzle, and the solenoid valve is electrically connected to the control unit; The control unit is configured to drive the solenoid valve to control the vacuum nozzle to pick up the test piece.

12. The testing system according to claim 9, characterized in that, The frame is also equipped with a preheating zone; The preheating zone includes a heating device used to preheat the test piece before testing.

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