Lifting device
By designing a lifting device that uses a motor-driven lead screw to raise and lower the arm, the problem of difficult movement and docking of the test head in semiconductor testing was solved, achieving efficient test head docking and reducing labor costs.
Patent Information
- Application Number
- CN202520094514.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-15
AI Technical Summary
In semiconductor testing, the test head is difficult to move up and down, and is inconvenient to operate in narrow spaces, resulting in low testing efficiency.
A lifting device was designed, including a base plate, a vertical plate, a lead screw, a clamping arm, and a drive assembly. The lead screw is driven by a motor to rotate, which in turn drives the clamping arm to lift and lower, thereby enabling the movement and docking of the test head.
It improves the docking efficiency between the test head and the probe station, saves 60%-70% of the time, reduces labor costs, and improves work efficiency.
Smart Images
Figure CN223705098U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to conductor test technical field, concretely relates to a lifting device. BACKGROUND
[0002] With the further development of semiconductor industry, the testing work of semiconductor becomes the indispensable link in the production preparation process. In the testing work, the corresponding test head and probe station are commonly needed to be connected, so as to realize the testing of electrical function, and due to the volume of the test head, the appearance of the product is large, and the following problems are often encountered in the semiconductor testing link: 1, the test head is difficult to move; 2, the test head is difficult to move up and down; 3, in some narrow places, it is inconvenient to operate.
[0003] Therefore, it is urgent to design a structure that can solve the above problems. UTILITY MODEL CONTENT
[0004] In view of the above problems existing in the prior art, a lifting device is provided.
[0005] The specific technical scheme is as follows:
[0006] A lifting device mainly comprises a bottom plate, a first vertical plate, a second vertical plate, a first lead screw, a second lead screw, an intermediate lead screw, a first arm and a second arm;
[0007] The first vertical plate and the second vertical plate are arranged on the bottom plate, the first lead screw is arranged on the first vertical plate, the second lead screw is arranged on the second vertical plate, the intermediate lead screw is arranged on the bottom plate, the two ends of the intermediate lead screw are connected with the first lead screw and the second lead screw respectively, the first arm is movably arranged on the first lead screw, the second arm is movably arranged on the second lead screw, a driving assembly is arranged on the first vertical plate, one end of the first lead screw is connected with the driving assembly, and the driving assembly drives the first lead screw to rotate, thereby driving the intermediate lead screw and the second lead screw to rotate.
[0008] In the above-mentioned lifting device, the driving assembly comprises a motor, a power output wheel, a tensioning wheel, a belt and a power input wheel, the motor is arranged on one side of the first vertical plate, the power output wheel is drivingly connected with the motor, the power output wheel, the tensioning wheel and the power input wheel are arranged on the other side of the first vertical plate, the belt is sleeved on the power output wheel, the tensioning wheel and the power input wheel, and the power input wheel is connected with the first lead screw.
[0009] In the above-mentioned lifting device, the central shaft of the power output wheel is provided with a hand wheel.
[0010] The first screw rod is sleeved with a first nut, the first nut is externally provided with the first holding arm, the first nut is internally provided with a first elastic element, and the first elastic element abuts against the first holding arm.
[0011] The second screw rod is sleeved with a second nut, the second nut is externally provided with the second holding arm, the second nut is internally provided with a second elastic element, and the second elastic element abuts against the second holding arm.
[0012] The first vertical plate is provided with a first guide rail, the first holding arm is slidably connected with the first guide rail through a first sliding block, the second vertical plate is provided with a second guide rail, and the second holding arm is slidably connected with the second guide rail through a second sliding block.
[0013] The first vertical plate or the second vertical plate is provided with a first sensor and a second sensor, and the first sensor is located higher than the second sensor.
[0014] The lifting device further comprises a control button box, a first power supply, a second power supply and a controller.
[0015] The control button box, the first power supply, the second power supply, the first sensor, the second sensor and the motor are electrically connected with the controller.
[0016] The control button box, the first power supply, the second power supply, the first sensor and the second sensor are arranged on the first vertical plate or the second vertical plate.
[0017] The bottom plate is provided with a first extension plate corresponding to the first holding arm, and is provided with a second extension plate corresponding to the second holding arm.
[0018] The bottom plate, the first extension plate and the second extension plate are provided with rollers at the bottom.
[0019] The technical scheme has the following beneficial effects:
[0020] The lifting device is provided with the test head installed on the first holding arm and the second holding arm, the driving assembly drives the first screw rod to rotate, and then drives the intermediate screw rod and the second screw rod to rotate, so as to drive the first holding arm and the second holding arm to ascend and descend, thereby realizing the lifting, movement and replacement of the test head. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A first direction structure schematic view of the lifting device is provided in the utility model;
[0022] Figure 2 A second direction structure schematic view of the lifting device is provided in the utility model;
[0023] Figure 3 A third direction structure schematic view of the lifting device is provided in the utility model;
[0024] Figure 4 A cross section structure schematic view of the lifting device screw rod is provided in the utility model;
[0025] Figure 5 A structure schematic view of the lifting device assembly test head is provided in the utility model;
[0026] Figure 6 A structure schematic view of the screw rod speed reducer is provided in the utility model.
[0027] In the drawing: 100, test head; 1, bottom plate; 2, first vertical plate; 3, second vertical plate; 4, first screw rod; 5, second screw rod; 6, intermediate screw rod; 7, first embracing arm; 8, second embracing arm; 9, motor; 10, power output wheel; 11, tension pulley; 12, belt; 13, power input wheel; 14, speed reducer; 15, idler; 16, hand wheel; 17, first nut; 18, chain coupling; 19, second nut; 20, coupling; 21, spring; 22, first guide rail; 23, first sliding block; 24, second guide rail; 25, second sliding block; 26, first embracing arm sliding block; 27, second embracing arm sliding block; 28, first sensor; 29, second sensor; 30, control button box; 31, first power supply; 32, second power supply; 34, first extension plate; 35, second extension plate; 36, roller; 37, switch; a, screw rod body; b, speed reducer; c, transmission shaft. DETAILED DESCRIPTION
[0028] In order to make the utility model's purpose, technical scheme and advantage more clearly, following through embodiment, and combining with the drawing, the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.
[0029] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.
[0030] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in relation to the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the "over", "above" and "on" of the first feature in relation to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature in relation to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0031] Please refer to Figures 1 to 6 The utility model discloses a lifting device, it is characterized by including: bottom plate 1, first vertical plate 2, second vertical plate 3, first lead screw 4, second lead screw 5, intermediate lead screw 6, first arm 7 and second arm 8,
[0032] The first vertical plate 2 and the second vertical plate 3 are arranged on the bottom plate 1, the first lead screw 4 is arranged on the first vertical plate 2, the second lead screw 5 is arranged on the second vertical plate 3, the intermediate lead screw 6 is arranged on the bottom plate 1, two ends of the intermediate lead screw 6 are connected with the first lead screw 4 and the second lead screw 5 respectively, the first arm 7 is movably arranged on the first lead screw 4, the second arm 8 is movably arranged on the second lead screw 5, a driving assembly is arranged on the first vertical plate 2, one end of the first lead screw 4 is connected with the driving assembly, the driving assembly drives the first lead screw 4 to rotate, and in turn drives the intermediate lead screw 6 and the second lead screw 5 to rotate, and in turn drives the first arm 7 and the second arm 8 to ascend and descend.
[0033] The driving assembly comprises a motor 9, a power output wheel 10, a tension wheel 11, a belt 12 and a power input wheel 13. The motor 9 is arranged on one side of the first vertical plate 2. The power output wheel 10 is drivingly connected with the motor 9. The power output wheel 10, the tension wheel 11 and the power input wheel 13 are arranged on the other side of the first vertical plate 2. The belt 12 is sleeved on the power output wheel 9, the tension wheel 11 and the power input wheel 13. The power input wheel 13 is connected with the first lead screw 4. The power input wheel 13 drives the first lead screw 4 to rotate.
[0034] Preferably, the output end of the motor 9 is provided with a chain coupling 18, which is connected with a speed reducer 14. The power output wheel 10 is arranged on the shaft of the speed reducer 14. Further, an idler wheel 15 is arranged. The belt 12 wraps around the idler wheel 15.
[0035] Optionally, in the embodiment, the first lead screw 4 and the second lead screw 5 are both lead screw reducers, which comprise a lead screw body a, a reducer b and a transmission shaft c. One end of the lead screw body a and the transmission shaft c extends into the reducer b. The other end of the lead screw body a and the transmission shaft c extends out of the reducer b. The reducer b is used for realizing the turning. The two ends of the intermediate lead screw 6 are connected with one transmission shaft c of the first lead screw 4 and one transmission shaft c of the second lead screw 5 through a coupling 20.
[0036] Further, the central shaft of the power output wheel 10 is provided with a hand wheel 16. The hand wheel 16 is used for generating power.
[0037] Specifically, in the embodiment, the first lead screw 4 is sleeved with a first nut 17. The first nut 17 is externally arranged with the first clamping arm 7. The first nut 17 is internally arranged with a first elastic member. The first elastic member abuts against the first clamping arm 7.
[0038] The second lead screw 5 is sleeved with a second nut 19. The second nut 19 is externally arranged with the second clamping arm 8. The second nut 19 is internally arranged with a second elastic member. The second elastic member abuts against the second clamping arm 8.
[0039] Optionally, the first elastic member and the second elastic member can be springs 21 or other structures with similar effects. One end of the spring 21 in the first nut 17 abuts against the inner wall of the first nut 17, and the other end abuts against the first arm 7. One end of the spring 21 in the second nut 19 abuts against the inner wall of the second nut 19, and the other end abuts against the second arm 8. The spring 21 functions to make the test head 100 have up-and-down floating property, so that the test head 100 will not be damaged by hard collision when it is docked with the probe station. The first arm 7 is fixedly connected with the first nut 17 through a sliding bearing and cannot rotate relative to the first nut 17. When the first screw rod 4 rotates, the first nut 17 drives the first arm 7 to move up and down. The second arm 8 is fixedly connected with the second nut 19 through a sliding bearing and cannot rotate relative to the second nut 19. When the second screw rod 5 rotates, the second nut 19 drives the second arm 8 to move up and down.
[0040] Optionally, in the embodiment, the first nut 17 and the second nut 19 are copper nuts.
[0041] The first vertical plate 2 is provided with a first guide rail 22, and the first arm 7 is slidably connected with the first guide rail 22 through a first sliding block 23. The second vertical plate 3 is provided with a second guide rail 24, and the second arm 8 is slidably connected with the second guide rail 24 through a second sliding block 25. The first arm 7 is mounted on the first sliding block 23 through a first arm sliding block 26, and the second arm 8 is mounted on the second sliding block 25 through a second arm sliding block 27.
[0042] The first vertical plate 2 or the second vertical plate 3 is provided with a first sensor 28 and a second sensor 29. The position of the first sensor 28 is higher than that of the second sensor 29. The first arm sliding block 26 and the second arm sliding block 27 are provided with limiting pieces for limiting the up-and-down movement of the first arm 7 and the second arm 8.
[0043] Further, the device further comprises a control button box 30, a first power supply 31, a second power supply 32 and a controller.
[0044] The control button box 30, the first power supply 31, the second power supply 32, the first sensor 28, the second sensor 29 and the motor 9 are electrically connected with the controller.
[0045] The control button box 30, the first power supply 31, the second power supply 32, the first sensor 28 and the second sensor 29 are mounted on the first vertical plate 2 or the second vertical plate 3.
[0046] Here, the first power supply 31, the second power supply 32 and the controller can be arranged on the first vertical plate 2 or the second vertical plate 3 in any way, and the specific arrangement is not described here. Figure 1 The device shown in the figure is only one of the illustrative embodiments.
[0047] Optionally, in the embodiment, the first power supply 31 is a 60V power supply for powering the motor 9, and the second power supply 32 is a 24V power supply for powering the controller. The second vertical plate 3 is provided with a switch 37, which is a total power switch and has a leakage protection function.
[0048] Optionally, in the embodiment, the bottom plate 1 is provided with a first extension plate 34 corresponding to the first arm 7, and the bottom plate 1 is provided with a second extension plate 35 corresponding to the second arm 8. Of course, in other embodiments, the bottom plate 1 can be provided with a larger plate, for example, the width in the direction of the first arm 7 and the second arm 8 corresponds to the first arm 7 and the second arm 8.
[0049] Further, the bottom plate 1, the first extension plate 34 and the second extension plate 35 are provided with rollers 36 at the bottom, realizing the movement of the entire lifting device.
[0050] Further, a turnover mechanism is provided on the first arm 7 and the second arm 8, which is connected with the test head 100, realizing the turnover of the test head 100. The turnover mechanism is a prior art, which will not be described here.
[0051] The lifting device provided by the utility model installs the test head 100 in the first arm 7 and the second arm 8, the driving assembly drives the first lead screw 4 to rotate and further drives the intermediate lead screw 6 and the second lead screw 5 to rotate, and further drives the first arm 7 and the second arm 8 to lift, realizing the lifting and replacement of the test head 100. The utility model improves the docking probe station speed of the test head 100, improves the work efficiency. It can replace part of the labor force, and reduce the number of people who need to complete the docking project at the same time. Through the functions of the utility model, the corresponding work can be more convenient, for example, the movement, lifting and docking of the probe station of the test head 100. In summary, using the lifting device can effectively reduce the working hours cost and provide better economic benefits. Through testing, the lifting mechanism (the first arm 7 and the second arm 8) saves 60% to 70% of the time of the test head 100 docking the probe station in the case of using the device compared with not using the device.
[0052] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.
[0053] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A lifting device, characterized in that The utility model relates to a kind of vertical lifting device, including: Bottom plate, first vertical plate, second vertical plate, first lead screw, second lead screw, intermediate lead screw, first arm and second arm; The first vertical plate and the second vertical plate are arranged on the bottom plate, the first lead screw is arranged on the first vertical plate, the second lead screw is arranged on the second vertical plate, the intermediate lead screw is arranged on the bottom plate, the two ends of the intermediate lead screw are connected with the first lead screw and the second lead screw respectively, the first arm is movably arranged on the first lead screw, the second arm is movably arranged on the second lead screw, a driving assembly is arranged on the first vertical plate, one end of the first lead screw is connected with the driving assembly, the driving assembly drives the first lead screw to rotate, and further drives the intermediate lead screw and the second lead screw to rotate.
2. The lift device of claim 1, wherein, The driving assembly includes a motor, a power output wheel, a tensioning wheel, a belt and a power input wheel, the motor is arranged on one side of the first vertical plate, the power output wheel is drivingly connected with the motor, the power output wheel, the tensioning wheel and the power input wheel are arranged on the other side of the first vertical plate, the belt is sleeved on the power output wheel, the tensioning wheel and the power input wheel, and the power input wheel is connected with the first lead screw.
3. The lift device of claim 2, wherein, The central shaft of the power output wheel is provided with a hand wheel.
4. The lift device of claim 2, wherein, A first nut is sleeved on the first lead screw, the first nut is externally provided with the first arm, the first nut is internally provided with a first elastic member, and the first elastic member abuts against the first arm; A second nut is sleeved on the second lead screw, the second nut is externally provided with the second arm, the second nut is internally provided with a second elastic member, and the second elastic member abuts against the second arm.
5. The lift device of claim 4, wherein, A first guide rail is arranged on the first vertical plate, the first arm is slidably connected with the first guide rail through a first sliding block, a second guide rail is arranged on the second vertical plate, and the second arm is slidably connected with the second guide rail through a second sliding block.
6. Lift according to any of claims 2 to 5, characterized in that A first sensor and a second sensor are arranged on the first vertical plate or the second vertical plate, and the position of the first sensor is higher than that of the second sensor.
7. The lift device of claim 6, wherein, Further comprising a control button box, a first power supply, a second power supply and a controller; The control button box, the first power supply, the second power supply, the first sensor, the second sensor and the motor are electrically connected with the controller.
8. The lift device of claim 7, wherein, The control button box, the first power supply, the second power supply, the first sensor and the second sensor are arranged on the first vertical plate or the second vertical plate.
9. Lift according to any of claims 2 to 5, characterized in that A first extension plate corresponding to the first arm is arranged on the bottom plate, and a second extension plate corresponding to the second arm is arranged on the bottom plate.
10. The lift device of claim 9, wherein, Rollers are arranged at the bottom of the bottom plate, the first extension plate and the second extension plate.