A mobile lifting feeding and discharging device
By combining the rollers, longitudinal chute, limit slider, and drive motor of the mobile lifting and unloading device, the problem of material feeding platform swaying is solved, thereby achieving the stability of semiconductor devices and the accuracy of testing, and improving the durability and ease of operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU GAOKUN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2023-10-07
- Publication Date
- 2026-06-05
AI Technical Summary
Existing loading and unloading devices, driven by cylinders, cause the unloading platform to shake, making it difficult to guarantee the stability of semiconductor devices and the accuracy of testing.
The mobile lifting and unloading device utilizes rollers and longitudinal chute design, combined with limit sliders and drive motors, to ensure stable lifting and unloading operations of the unloading platform. Limit sliders and guide wheels improve guiding accuracy, while lateral reinforcement plates and fixed plates provide stable support. The slide plate and drive components enable automated unloading.
It improves the stability of semiconductor devices and the accuracy of testing, reduces operational errors, lowers labor intensity, enhances the durability and reliability of the equipment, and simplifies maintenance and operation procedures.
Smart Images
Figure CN117263090B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of loading and unloading equipment, and in particular to a mobile lifting loading and unloading device. Background Technology
[0002] Semiconductor device testing equipment is used to test semiconductor devices after chip packaging. During the testing process, the semiconductor device is loaded onto the test socket corresponding to the test circuit board. The test circuit board is electrically connected to the test system, which is used to test the semiconductor device.
[0003] Currently, due to the heavy weight of the test fixture and to facilitate the testing of semiconductor devices, a lifting and unloading device is usually installed on the semiconductor device testing equipment. However, the existing loading and unloading device is driven by a cylinder, which causes the loading platform on which the semiconductor device is placed to shake during the loading and unloading process, making it difficult to ensure the stability of the loading platform and thus reducing the stability of the semiconductor device. Summary of the Invention
[0004] This application provides a mobile lifting and unloading device that can effectively ensure the stability of the unloading platform.
[0005] This application provides a mobile lifting and unloading device, which adopts the following technical solution:
[0006] A mobile lifting and unloading device for loading and unloading semiconductor devices includes a mobile base with several rollers at its bottom. A gantry frame is mounted on the mobile base, with a handle on one side of the gantry frame and a loading platform for placing semiconductor devices slidably mounted on the other side of the gantry frame. The gantry frame has a longitudinal groove, and a limiting slider is provided between the loading platform and the longitudinal groove of the gantry frame. A first lead screw and a first sliding rod are passed through the limiting slider, and a first drive motor for driving the first lead screw is mounted on the mobile base.
[0007] By adopting the above technical solution, the user can move the gantry on the mobile base to the loading / unloading position by holding the handle and using the rollers. The semiconductor device is then placed on the unloading platform, and the first drive motor is started to rotate the lead screw. Under the limiting action of the first slide bar, the unloading platform is raised and lowered inside the longitudinal slide groove by the limiting slider to achieve the unloading function. The mobile lifting loading / unloading device can ensure that the unloading platform is raised and lowered and unloaded in the appropriate position by using the limiting slider and the limiting action, so as to ensure the stability of the unloading platform and thus improve the stability of the semiconductor device.
[0008] Preferably, the feeding platform includes two lateral reinforcing plates, a fixing plate is provided between the two lateral reinforcing plates, and a U-shaped reinforcement member is provided on the fixing plate, the U-shaped reinforcement member being fixedly connected to the limiting slider.
[0009] By adopting the above technical solution, and by setting a fixed plate between the two lateral reinforcing plates, and setting a U-shaped reinforcement on the fixed plate that is fixedly connected to the limiting slider, the material feeding platform includes a design of lateral reinforcing plates and a fixed plate, which can provide stable support, increase load-bearing capacity, improve durability, simplify maintenance and replacement, and improve working stability.
[0010] Preferably, the limiting slider is provided with a guide wheel, which is rotatably disposed inside the longitudinal groove of the gantry.
[0011] By adopting the above technical solution, the limit slider is equipped with a guide wheel, and the guide wheel is rolled inside the longitudinal groove of the gantry, which can improve the guiding accuracy, reduce frictional resistance, increase wear resistance, improve stability and reliability, and simplify maintenance and adjustment.
[0012] Preferably, the lateral reinforcement plate is provided with a limiting slide rail, and a sliding plate is slidably mounted on the limiting slide rail, the sliding plate being used to place semiconductor devices.
[0013] By adopting the above technical solution, and by providing a limiting slide rail on the lateral reinforcement plate, and sliding a slide plate on the limiting slide rail, the slide plate is used to place semiconductor devices to achieve horizontal displacement and play a material unloading role. This can achieve benefits such as automated material unloading, improved accuracy, increased safety, simplified operation, and improved applicability.
[0014] Preferably, a first driving member is provided between the fixed plate and the sliding plate.
[0015] By adopting the above technical solution, the skateboard can be stably driven, allowing it to slide stably on the limit rail.
[0016] Preferably, the first driving component includes a second driving motor disposed at the bottom of the fixed plate and a limiting and fixing strip disposed at the bottom of the slide plate. The output end of the second driving motor is connected to a second lead screw, which passes through the interior of the limiting and fixing strip. A second sliding rod is disposed through the interior of the limiting and fixing strip.
[0017] By adopting the above technical solution, and by providing a first driving component between the fixed plate and the sliding plate, including a second driving motor and a limiting fixing bar, the sliding plate can be driven by the rotation of the second lead screw, thereby achieving the benefits of automated driving, precise control, improved stability, enhanced safety, and simplified operation.
[0018] Preferably, the slide plate is provided with a plurality of test seats, the test seats are used to stack semiconductor devices, and the outer side of the test seats is provided with a reinforcing crossbar.
[0019] By adopting the above technical solution and setting a reinforcing crossbar on the outside of the test socket, additional support and stability can be provided to prevent the device from sliding and colliding, improve stacking efficiency, and facilitate loading, unloading and operation. These benefits can improve the effectiveness and safety of the test socket and protect the integrity and reliability of semiconductor devices.
[0020] Preferably, the fixing plate is provided with a mounting beam, and the mounting beam is provided with a locking element for locking the reinforcing crossbar on the test seat.
[0021] By adopting the above technical solution, and by providing a mounting beam on the fixed plate and a locking component on the mounting beam to lock the reinforcing crossbar on the test seat, additional fixed support can be provided to prevent the test seat from sliding and colliding, as well as to facilitate safe loading, unloading and operation. These benefits can improve the use effect and safety of the test seat and protect the stability and integrity of the items inside the test seat.
[0022] Preferably, the locking component includes a mounting longitudinal plate on the mounting beam and a cylinder on the fixing plate. The mounting longitudinal plate has a mounting upright plate. A first connecting rod is movably connected to the output end of the cylinder. One end of the first connecting rod is connected to the output end of the cylinder. The middle part of the first connecting rod is hinged to the mounting upright plate. A second connecting rod is hinged to the other end of the first connecting rod. One end of the second connecting rod is connected to the first connecting rod. A sliding plate is rotatably provided at the other end of the second connecting rod. A sliding rail is provided between the sliding plate and the mounting longitudinal plate. A fixing component is provided on the sliding plate. A rotating shaft is provided on the fixing component. A locking rod is provided on the rotating shaft. A torsion spring is provided inside the fixing component. One end of the torsion spring is connected to the rotating shaft, and the other end of the torsion spring is connected to the fixing component. One end of the locking rod has a latch that matches the reinforcing crossbar.
[0023] By adopting the above technical solution, the power supply to the cylinder is turned on, causing one end of the first connecting rod to rise. At this time, the first connecting rod rotates around the mounting plate, causing the second connecting rod to move in conjunction and push the sliding plate towards the reinforcing crossbar until the latch on the locking rod engages with the reinforcing crossbar, thereby achieving stable fixation between the reinforcing crossbar and the fixing plate. By achieving stable fixation between the reinforcing crossbar and the fixing plate, reliable fixation can be provided, preventing the test seat from sliding and colliding, as well as facilitating safe loading, unloading, and operation. These benefits can improve the use effect and safety of the test seat, and protect the stability and integrity of the items inside the test seat.
[0024] Preferably, the mounting plate is provided with a limiting plate, which is located on one side of the sliding plate. The limiting plate has an arc-shaped guide groove inside. The locking rod is provided with an extension rod, one end of which is connected to the middle of the locking rod, and the other end of which moves inside the arc-shaped guide groove.
[0025] By adopting the above technical solution, as the sliding plate approaches the reinforcing crossbar, a relative displacement occurs between the limiting plate and the sliding plate. Under the guidance of the arc-shaped guide groove, the locking rod rotates around the fixing part until the latch on the locking rod engages with the reinforcing crossbar, thus achieving a linkage effect.
[0026] In summary, this application has the following beneficial effects:
[0027] 1. By holding the handle, the user moves the gantry on the mobile base to the loading / unloading position via rollers, places the semiconductor device on the unloading platform, and then starts the first drive motor to rotate the lead screw. Under the limiting action of the first slide bar, the unloading platform moves up and down inside the longitudinal slide groove via the limiting slider to achieve the unloading function. The mobile lifting loading / unloading device, through the limiting slider and limiting action, can ensure that the unloading platform is lifted and unloaded in the appropriate position, thereby ensuring the stability of the unloading platform and improving the stability of the semiconductor device. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of the mobile lifting and unloading device in this embodiment;
[0029] Figure 2 This is a schematic diagram of the overall structure of the feeding platform in this embodiment;
[0030] Figure 3 This is a schematic diagram of the internal overall structure of the first driving component in this embodiment;
[0031] Figure 4 This is a schematic diagram of the overall structure of the sliding plate and the locking component in the state of being far apart in this embodiment;
[0032] Figure 5 This is a partial structural diagram of some parts of the locking component in this embodiment;
[0033] Explanation of reference numerals in the attached drawings: 1. Movable base; 2. Roller; 3. Gantry frame; 4. Handle; 5. Feeding platform; 501. Lateral reinforcement plate; 502. Fixing plate; 503. U-shaped reinforcement component; 6. Longitudinal slide groove; 7. Limiting slider; 8. First lead screw; 9. First slide bar; 10. First drive motor; 11. Guide wheel; 12. Limiting slide rail; 13. Slide plate; 14. First driving component; 1401. Second drive motor; 1402. Limiting fixing strip; 1403. Second lead screw; 1404. 15. Second sliding rod; 16. Test seat; 17. Reinforcing crossbar; 18. Mounting crossbeam; 19. Locking component; 10. Mounting longitudinal plate; 11. Cylinder; 12. Mounting vertical plate; 13. First connecting rod; 14. Second connecting rod; 15. Sliding plate; 16. Sliding rail; 17. Fixing component; 18. Rotating shaft; 18. Locking rod; 19. Bayonet; 10. Limiting plate; 11. Arc-shaped guide groove; 12. Extending rod; Detailed Implementation
[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0035] This invention discloses a mobile lifting and unloading device, such as... Figure 1As shown, a semiconductor device loading and unloading device includes a movable base 1 with several rollers 2 at its bottom. A gantry frame 3 is mounted on the movable base 1, with a handle 4 on one side and a loading platform 5 for placing semiconductor devices slidably mounted on the other side. The gantry frame 3 has a longitudinal groove 6, and a limiting slider 7 is located between the loading platform 5 and the longitudinal groove 6. A first lead screw 8 and a first sliding rod 9 pass through the limiting slider 7. A first drive motor 10 is mounted on the movable base 1 to drive the first lead screw 8. The user holds the handle 4, moves the gantry frame 3 on the movable base 1 to the loading / unloading position via the rollers 2, places the semiconductor device on the loading platform 5, and then starts the first drive motor 10, causing the lead screw to rotate. Under the limiting action of the first sliding rod 9, the loading platform 5 slides longitudinally via the limiting slider 7. The internal lifting mechanism of slot 6 enables material unloading. Traditional loading and unloading operations require manual lifting and placement, which involves significant physical labor. The mobile lifting loading and unloading device, driven by the first drive motor 10 and featuring a longitudinal slide 6, reduces the operator's workload. Furthermore, the use of rollers 2 and the longitudinal slide 6 ensures accurate placement and unloading of semiconductor devices during movement and lifting, preventing errors caused by manual operation. The device also utilizes a limiting slider 7 to ensure the unloading platform 5 is positioned correctly for lifting and unloading, preventing accidental injuries due to improper operation. Finally, the mobile lifting loading and unloading device stably places semiconductor devices on the unloading platform 5, ensuring stability and accuracy, thereby improving production quality.
[0036] like Figure 2As shown, the unloading platform 5 includes two lateral reinforcing plates 501, with a fixed plate 502 positioned between them. A U-shaped reinforcement 503 is mounted on the fixed plate 502 and is fixedly connected to the limiting slider 7. The fixed plate 502, positioned between the two lateral reinforcing plates 501, and the U-shaped reinforcement 503 fixedly connected to the limiting slider 7, provides stable support, ensuring the unloading platform 5 remains stable during vertical movement, preventing swaying and tilting, and guaranteeing the safe placement of semiconductor devices and smooth unloading operations. Furthermore, the fixed plate 502 and U-shaped reinforcement 503 between the two lateral reinforcing plates 501 effectively increase the load-bearing capacity of the unloading platform 5, enabling it to withstand heavier loads. The use of semiconductor devices enhances the applicability and flexibility of the device. Furthermore, the reinforcement structure of the lateral reinforcement plate 501 and the fixing plate 502 effectively disperses forces, reducing localized pressure on the unloading platform 5 and improving the device's durability and service life. Additionally, the fixing plate 502 and the U-shaped reinforcement 503 simplify maintenance and replacement of the unloading platform 5, allowing for convenient adjustment, repair, or replacement, thus improving the device's maintainability and reliability. Moreover, by increasing the structural stability of the unloading platform 5, errors caused by vibration and deformation are reduced, improving operational stability and accuracy. In summary, the design of the unloading platform 5, including the lateral reinforcement plate 501 and the fixing plate 502, provides benefits such as stable support, increased load-bearing capacity, improved durability, simplified maintenance and replacement, and enhanced operational stability.
[0037] The limit slider 7 is equipped with a guide wheel 11, which rolls inside the longitudinal groove 6 of the gantry 3. The guide wheel 11 can roll accurately within the longitudinal groove 6 of the gantry 3, providing more precise guidance and ensuring good guidance for the unloading platform 5 during vertical movement. This prevents deviation from the track or jamming, improving the accuracy and stability of movement. Furthermore, the rolling of the guide wheel 11 reduces frictional resistance between the unloading platform 5 and the gantry 3, lowering energy consumption and noise during movement, thus improving the efficiency and user comfort of the device. Additionally, the guide wheel 11 is typically made of wear-resistant material, capable of withstanding greater friction and wear, extending its service life and reducing the frequency of maintenance and replacement. The design of the guide wheel 11 provides more stable rolling support, ensuring the material feeding platform 5 remains stable and reliable during movement. This reduces instability caused by swaying or bumping, improving the stability and reliability of the device. Notably, the design of the guide wheel 11 makes maintenance and adjustment of the material feeding platform 5 more convenient. Maintenance and adjustment of the material feeding platform 5 can be achieved by adjusting the position of the guide wheel 11 or replacing the guide wheel 11, improving the maintainability and adjustability of the device. In summary, the guide wheel 11 on the limit slider 7, which is rolled inside the longitudinal groove 6 of the gantry 3, can improve guiding accuracy, reduce frictional resistance, increase wear resistance, improve stability and reliability, and simplify maintenance and adjustment.
[0038] like Figure 2As shown, the lateral reinforcement plate 501 is equipped with a limiting slide rail 12, and a sliding plate 13 is slidably mounted on the limiting slide rail 12. The sliding plate 13 is used to place semiconductor devices. The horizontal displacement generated by the sliding plate 13 enables automatic unloading of semiconductor devices, reducing the need for manual operation and improving production and work efficiency. Furthermore, the design of the limiting slide rail 12 and the sliding plate 13 provides precise positioning and displacement control, enabling accurate unloading operations, reducing the possibility of errors and damage, and improving product quality and consistency. The limiting slide rail 12 ensures that the horizontal displacement range of the sliding plate 13 is within a predetermined safety range, preventing damage to the semiconductor devices or unexpected situations caused by exceeding the boundary, thus improving operational safety and reliability. Moreover, the sliding plate 13... The design simplifies and simplifies the unloading operation. Operators only need to place the semiconductor device on the slide plate 13 and slide the slide plate 13 to unload the device. This reduces complex operating steps and skill requirements, lowers the difficulty of operation and workload. In addition, using the slide plate 13 for unloading can accommodate semiconductor devices of different shapes and sizes, improving applicability and flexibility, and reducing the need for customization for different semiconductor devices. In summary, by providing a limiting slide rail 12 on the lateral reinforcement plate 501 and sliding the slide plate 13 on the limiting slide rail 12, the slide plate 13 is used to place the semiconductor device to achieve horizontal displacement for unloading. This achieves benefits such as automated unloading, improved accuracy, increased safety, simplified operation and improved applicability.
[0039] like Figure 2 and Figure 3As shown, a first driving member 14 is provided between the fixed plate 502 and the slide plate 13; it is used to stably drive the slide plate 13, so that the slide plate 13 slides stably on the limiting slide rail 12. The first driving member 14 includes a second driving motor 1401 located at the bottom of the fixed plate 502 and a limiting fixing bar 1402 located at the bottom of the slide plate 13. The output end of the second driving motor 1401 is connected to a second lead screw 1403, which passes through the interior of the limiting fixing bar 1402. A second slide rod 1404 passes through the interior of the limiting fixing bar 1402. Through the combination of the second driving motor 1401 and the second lead screw 1403, the slide plate 13 can be automatically driven, reducing the need for manual operation and improving production efficiency and work efficiency. Furthermore, through the rotation of the second driving motor 1401 and the second lead screw 1403, the slide plate 13 can be precisely controlled, and its position and displacement can be adjusted to adapt to different work requirements and semiconductor device sizes, improving work flexibility and adaptability. In addition, the limiting fixing bar 1404... The setting of the fixing bar 1402 ensures the stability of the slide plate 13, preventing it from swaying or detaching from the fixing plate 502 during operation, thus improving the stability and reliability of the operation. Furthermore, the design of the limiting fixing bar 1402 and precise control ensures that the slide plate 13 remains within a safe range during operation, avoiding accidental damage or accidents caused by exceeding the boundaries, thereby improving the safety and reliability of the operation. In addition, the use of the second drive motor 1401 and the second lead screw 1403 for driving simplifies the operation steps and reduces the difficulty of operation. Driving and position adjustment of the slide plate 13 can be achieved simply by controlling the start and stop of the motor and adjusting the rotation of the lead screw, reducing the complexity of operation and skill requirements. In summary, by providing a first driving component 14 between the fixing plate 502 and the slide plate 13, including the second drive motor 1401 and the limiting fixing bar 1402, and driving the slide plate 13 by the rotation of the second lead screw 1403, the advantages of automated driving, precise control, improved stability, improved safety, and simplified operation can be achieved.
[0040] like Figure 2As shown, the slide plate 13 is equipped with several test seats 15, which are used to stack semiconductor devices. Reinforcing crossbars 16 are provided on the outer side of each test seat 15. The reinforcing crossbars 16 increase the stability of the test seats 15, preventing them from shaking or tilting during movement or vibration, thus protecting the semiconductor devices from accidental damage. The reinforcing crossbars 16 also act as a physical barrier, preventing the semiconductor devices within the test seats 15 from sliding, colliding, or being squeezed together during transportation or use, maintaining the stability and isolation of the devices. Furthermore, the reinforcing crossbars 16 allow for a more compact stacking of the test seats 15. Stacking them together reduces looseness and shaking during stacking, improving stacking stability and effective space utilization. Additionally, the reinforcing crossbar 16 can serve as a handle or armrest, facilitating gripping and operation when moving the test fixture 15, enhancing ease of operation and safety. In summary, by providing reinforcing crossbars 16 on the outside of the test fixture 15, additional support and stability are provided, preventing device slippage and collisions, improving stacking efficiency, and facilitating loading, unloading, and operation. These benefits enhance the usability and safety of the test fixture 15, protecting the integrity and reliability of semiconductor devices. The fixing plate 502 is equipped with a mounting beam 1. 7. The mounting beam 17 is equipped with a locking element 18 for locking the reinforcing crossbar 16 on the test seat 15. By connecting the reinforcing crossbar 16 on the test seat 15 to the mounting beam 17 using the locking element 18, additional fixed support can be provided for the test seat 15, increasing its stability and preventing it from shaking, tilting, or falling off during transportation or use. Furthermore, the locking element 18 ensures that the reinforcing crossbar 16 is firmly fixed to the test seat 15, preventing items inside the test seat 15 from sliding, colliding, or being squeezed together during transportation or use, thus maintaining the stability and isolation of the items inside the test seat 15. Furthermore, the locking element 18 securely fixes the reinforcing crossbar 16 on the test seat 15 to the mounting beam 17, facilitating loading, unloading, and operation by staff and improving operational convenience and safety. In summary, by providing the mounting beam 17 on the fixing plate 502 and the locking element 18 on the mounting beam 17 to lock the reinforcing crossbar 16 on the test seat 15, additional fixed support is provided to prevent the test seat 15 from sliding and colliding, as well as to facilitate safe loading, unloading, and operation. These benefits improve the usability and safety of the test seat 15 and protect the stability and integrity of the items inside the test seat 15.
[0041] like Figure 4As shown, the locking member 18 includes a mounting longitudinal plate 1801 mounted on the mounting beam 17 and a cylinder 1802 mounted on the fixing plate 502. A mounting vertical plate 1803 is mounted on the mounting longitudinal plate 1801. A first connecting rod 1804 is movably connected to the output end of the cylinder 1802. One end of the first connecting rod 1804 is connected to the output end of the cylinder 1802, and the middle portion of the first connecting rod 1804 is hinged to the mounting vertical plate 1803. The other end is hinged to a second connecting rod 1805. One end of the second connecting rod 1805 is connected to the first connecting rod 1804. The other end of the second connecting rod 1805 is rotatably provided with a sliding plate 1806. A sliding rail 1807 is provided between the sliding plate 1806 and the mounting longitudinal plate 1801. A fixing member 1808 is provided on the sliding plate 1806. A rotating shaft 1809 is provided on the fixing member 1808. A locking rod 18010 is provided on the rotating shaft 1809. An internal torsion spring is provided in component 808. One end of the torsion spring is connected to the rotating shaft 1809, and the other end is connected to the fixing component 1808. One end of the locking rod 18010 is provided with a latch 18011 that matches the reinforcing crossbar 16. By activating the power supply of the cylinder 1802, one end of the first connecting rod 1804 is raised. At this time, the first connecting rod 1804 rotates around the mounting plate 1803, causing the second connecting rod 1805 to move and push towards the reinforcing crossbar 16. The sliding plate 1806 is moved until the latch 18011 on the locking rod 18010 engages with the reinforcing crossbar 16 to achieve stable fixation between the reinforcing crossbar 16 and the fixing plate 502. By achieving stable fixation between the reinforcing crossbar 16 and the fixing plate 502, reliable fixation can be provided to prevent the test seat 15 from sliding and colliding, as well as to facilitate safe loading, unloading and operation. These benefits can improve the use effect and safety of the test seat 15 and protect the stability and integrity of the items inside the test seat 15.
[0042] like Figures 4-5 As shown; the mounting plate 1801 is provided with a limiting plate 18012, which is located on one side of the sliding plate 1806. The limiting plate 18012 has an arc-shaped guide groove 18013 inside. The locking rod 18010 is provided with an extension rod 18014. One end of the extension rod 18014 is connected to the middle of the locking rod 18010, and the other end of the extension rod 18014 moves inside the arc-shaped guide groove 18013. As the sliding plate 1806 approaches the reinforcing crossbar 16, a relative displacement occurs between the limiting plate 18012 and the sliding plate 1806. Under the guidance of the arc-shaped guide groove 18013, the locking rod 18010 rotates around the fixing member 1808 until the latch 18011 on the locking rod 18010 engages with the reinforcing crossbar 16, achieving a linkage effect.
[0043] Working principle: Before use, the user first starts the cylinder 1802, so that the latch 18011 on the locking rod 18010 is locked on the reinforcing crossbar 16, thereby fixing the fixing plate 502 and the sliding plate 13.
[0044] Then, the semiconductor devices are placed inside the test base 15 in sequence. After the semiconductor devices are installed, the user holds the handle 4 and moves the gantry 3 on the mobile base 1 to the loading and unloading position via the rollers 2. The semiconductor devices are then placed on the unloading platform 5. The first drive motor 10 is then started to rotate the lead screw. Under the limiting action of the first slide bar 9, the unloading platform 5 is raised and lowered inside the longitudinal slide groove 6 via the limiting slider 7 to adjust the semiconductor devices to a suitable height.
[0045] When the semiconductor device is adjusted to the appropriate height, the reverse drive cylinder 1802 causes the latch 18011 on the locking rod 18010 to disengage from the reinforcing crossbar 16, thereby separating the fixed plate 502 and the slide plate 13. Then, by starting the second drive motor 1401, the second lead screw 1403 is rotated, which causes the slide plate 13 to move horizontally relative to the fixed plate 502, so that the slide plate 13 slowly enters the semiconductor device testing device to achieve the unloading of the semiconductor device.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A mobile lifting and unloading device for loading and unloading semiconductor devices, comprising a mobile base (1), characterized in that: The bottom of the mobile base (1) is provided with several rollers (2), the mobile base (1) is provided with a gantry frame (3), one side of the gantry frame (3) is provided with a handle (4), the other side of the gantry frame (3) is provided with a feeding platform (5) for placing semiconductor devices, the gantry frame (3) is provided with a longitudinal groove (6), a limiting slider (7) is provided between the feeding platform (5) and the longitudinal groove (6) of the gantry frame (3), the limiting slider (7) is provided with a first lead screw (8) and a first slide rod (9) passing through the inside, and the mobile base (1) is provided with a first drive motor (10) for driving the first lead screw (8); The material feeding platform (5) includes two lateral reinforcement plates (501), and a fixing plate (502) is provided between the two lateral reinforcement plates (501). A U-shaped reinforcement member (503) is provided on the fixing plate (502), and the U-shaped reinforcement member (503) is fixedly connected to the limiting slider (7). The lateral reinforcement plate (501) is provided with a limiting slide rail (12), and a sliding plate (13) is slidably provided on the limiting slide rail (12). The sliding plate (13) is used to place semiconductor devices. The slide plate (13) is provided with several test seats (15), the test seats (15) are used to stack semiconductor devices, and the outer side of the test seats (15) is provided with a reinforcing crossbar (16). The fixing plate (502) is provided with a mounting beam (17), and the mounting beam (17) is provided with a locking element (18) for locking the reinforcing crossbar (16) on the test seat (15); The locking component (18) includes a mounting longitudinal plate (1801) on the mounting beam (17) and a cylinder (1802) on the fixing plate (502). A mounting vertical plate (1803) is provided on the mounting longitudinal plate (1801). A first connecting rod (1804) is movably connected to the output end of the cylinder (1802). One end of the first connecting rod (1804) is connected to the output end of the cylinder (1802). The middle part of the first connecting rod (1804) is hinged to the mounting vertical plate (1803). A second connecting rod (1805) is hinged to the other end of the first connecting rod (1804). One end of the second connecting rod (1805) is connected to the first connecting rod (1804). The second connecting rod (1805) is rotatably provided with a sliding plate (1806) at the other end. A sliding rail (1807) is provided between the sliding plate (1806) and the mounting longitudinal plate (1801). A fixing member (1808) is provided on the sliding plate (1806). A rotating shaft (1809) is provided on the fixing member (1808). A locking rod (18010) is provided on the rotating shaft (1809). A torsion spring is provided inside the fixing member (1808). One end of the torsion spring is connected to the rotating shaft (1809), and the other end of the torsion spring is connected to the fixing member (1808). One end of the locking rod (18010) is provided with a bayonet (18011) that matches the reinforcing crossbar (16). The mounting plate (1801) is provided with a limiting plate (18012), which is located on one side of the sliding plate (1806). The limiting plate (18012) is provided with an arc-shaped guide groove (18013) inside. The locking rod (18010) is provided with an extension rod (18014). One end of the extension rod (18014) is connected to the middle of the locking rod (18010), and the other end of the extension rod (18014) moves inside the arc-shaped guide groove (18013).
2. The mobile lifting and unloading device according to claim 1, characterized in that: The limiting slider (7) is provided with a guide wheel (11), which is rolled inside the longitudinal groove (6) of the gantry frame (3).
3. The mobile lifting and unloading device according to claim 1, characterized in that: A first driving member (14) is provided between the fixed plate (502) and the sliding plate (13).
4. The mobile lifting and unloading device according to claim 3, characterized in that: The first driving component (14) includes a second driving motor (1401) disposed at the bottom of the fixed plate (502) and a limiting fixing strip (1402) disposed at the bottom of the slide plate (13). The output end of the second driving motor (1401) is connected to a second lead screw (1403). The second lead screw (1403) passes through the interior of the limiting fixing strip (1402). A second slide rod (1404) passes through the interior of the limiting fixing strip (1402).