A lifting device with a lead screw assembly

Abstract

This utility model discloses a lifting device with a lead screw assembly, comprising: an engineering vehicle, base plates, an adjusting lead screw, and a lead screw nut block. Several base plates are arranged on the outer side of the engineering vehicle. The lower end of the adjusting lead screw is connected to the base plates. The lead screw nut block is sleeved around the adjusting lead screw. The engineering vehicle is connected to the lead screw nut block. Through the application of this utility model, a lifting device with a lead screw assembly is proposed, which changes the limitation of the fixed height of traditional simple engineering vehicles. By setting the adjusting lead screw and lead screw nut block, the lifting function of the engineering vehicle is realized, thereby enabling the engineering vehicle to adapt to more usage scenarios and greatly expanding its application range. In addition, its structure is relatively simple, avoiding the high cost problem caused by the complex structure of conventional engineering vehicles, and helping to reduce operating costs.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor testing technology, and in particular to a lifting device with a lead screw assembly. Background Technology

[0002] In semiconductor testing, simple engineering vehicles are commonly used. However, existing simple engineering vehicles typically cannot perform lifting or lowering movements; they can only be rotated manually by cranking a handwheel. While conventional engineering vehicles can meet the requirements for rotation and lifting, they suffer from complex structures and high costs. Most simple engineering vehicles are customized to a fixed height, which limits their adaptability to various application scenarios and results in relatively high operating costs. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a lifting device with a lead screw assembly, including: an engineering vehicle, a base plate, an adjusting lead screw and a lead screw nut block, wherein a plurality of base plates are provided on the outer side of the engineering vehicle, the lower end of the adjusting lead screw is connected to the base plate, the lead screw nut block is sleeved on the periphery of the adjusting lead screw, and the engineering vehicle is connected to the lead screw nut block.

[0004] In another preferred embodiment, it further includes a self-aligning ball bearing, which is disposed inside the base plate and sleeved around the adjusting screw.

[0005] In another preferred embodiment, the engineering vehicle includes: a U-shaped base, the lower end of which is provided with a plurality of rollers, and the outer side wall of the U-shaped base is provided with a plurality of first threaded holes.

[0006] In another preferred embodiment, the lead screw nut block is provided with a plurality of second threaded holes, the first threaded holes and the second threaded holes are engaged, and screws are provided in the first threaded holes and the second threaded holes, and the lead screw nut block is connected to the U-shaped base by the screws.

[0007] In another preferred embodiment, the lead screw nut block includes a connecting block and a lead screw nut, the lead screw nut being detachably disposed at the upper end of the connecting block, the connecting block being connected to the U-shaped base by the screw, and the lower end of the adjusting lead screw passing through the connecting block and the lead screw nut.

[0008] In another preferred embodiment, a limiting block is sleeved around the adjusting screw, the limiting block being disposed between the self-aligning ball bearing and the connecting block, and the lower end of the limiting block abutting against the upper end of the self-aligning ball bearing.

[0009] In another preferred embodiment, several of the foot plates are evenly arranged on both sides of the U-shaped base.

[0010] In another preferred embodiment, a protrusion is provided on the lower inner wall of the foot plate, and a spherical groove is formed on the protrusion. The lower end surface of the adjusting screw is a spherical surface, and the spherical surface is located in the spherical groove.

[0011] In another preferred embodiment, the upper end of the adjusting screw is provided with a hexagonal prism.

[0012] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a lifting device with a lead screw assembly is proposed, which changes the limitation of the fixed height of traditional simple engineering vehicles. By setting an adjusting lead screw and lead screw nut block, the lifting function of the engineering vehicle is realized, thereby enabling the engineering vehicle to adapt to more usage scenarios and greatly expanding the application range of the engineering vehicle; in addition, its structure is relatively simple, which can avoid the high cost problem caused by the complex structure of conventional engineering vehicles and help reduce the cost of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a lifting device with a lead screw assembly according to the present invention;

[0014] Figure 2 This is an exploded view of a lifting device with a lead screw assembly according to the present invention;

[0015] Figure 3 This is a schematic diagram of the adjusting screw of a lifting device with a lead screw assembly according to the present invention.

[0016] In the attached image:

[0017] 1. Engineering vehicle; 2. Foot plate; 3. Adjusting screw; 4. Screw nut block; 5. Self-aligning ball bearing; 6. Screw; 11. U-shaped base; 12. Roller; 13. First threaded hole; 31. Limiting block; 32. Hexagonal column; 41. Second threaded hole; 42. Connecting block; 43. Screw nut. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0021] like Figure 1-3 As shown, a preferred embodiment of a lifting device with a lead screw assembly is illustrated, comprising: an engineering vehicle 1, a base plate 2, an adjusting lead screw 3, and a lead screw nut block 4. A plurality of base plates 2 are provided on the outer side of the engineering vehicle 1. The lower end of the adjusting lead screw 3 is connected to the base plate 2. The lead screw nut block 4 is sleeved around the adjusting lead screw 3. The engineering vehicle 1 is connected to the lead screw nut block 4.

[0022] Furthermore, as a preferred embodiment, it also includes a self-aligning ball bearing 5, which is disposed inside the base plate 2 and sleeved around the adjusting screw 3. Furthermore, the self-aligning ball bearing 5 can compensate for minor angular deviations that may occur when the adjusting screw 3 rotates, reducing friction and wear between the adjusting screw 3 and the base plate 2.

[0023] Furthermore, as a preferred embodiment, the engineering vehicle 1 includes: a U-shaped base 11, a plurality of rollers 12 provided at the lower end of the U-shaped base 11, and a plurality of first threaded holes 13 provided on the outer side wall of the U-shaped base 11.

[0024] Furthermore, as a preferred embodiment, the engineering vehicle 1 is existing technology, so it will not be described in detail here.

[0025] Furthermore, as a preferred embodiment, the lead screw nut block 4 is provided with a plurality of second threaded holes 41, the first threaded hole 13 and the second threaded hole 41 are engaged, and screws 6 are provided in the first threaded hole 13 and the second threaded hole 41. The lead screw nut block 4 is connected to the U-shaped base 11 by the screws 6.

[0026] Furthermore, as a preferred embodiment, the lead screw nut block 4 includes: a connecting block 42 and a lead screw nut 43. The lead screw nut 43 is detachably disposed on the upper end of the connecting block 42. The connecting block 42 is connected to the U-shaped base 11 by screws 6. The lower end of the adjusting lead screw 3 passes through the connecting block 42 and the lead screw nut 43.

[0027] Furthermore, in a preferred embodiment, a limiting block 31 is sleeved around the adjusting screw 3. The limiting block 31 is disposed between the self-aligning ball bearing 5 and the connecting block 42, with the lower end of the limiting block 31 abutting against the upper end of the self-aligning ball bearing 5. Further, the limiting block 31 is used to restrict excessive movement of the connecting block 42 along the axial direction of the adjusting screw 3, ensuring that the connecting block 42 moves within a reasonable range.

[0028] Furthermore, as a preferred embodiment, several foot plates 2 are evenly arranged on both sides of the U-shaped base 11.

[0029] Furthermore, in a preferred embodiment, a protrusion is provided on the lower inner wall of the base plate 2, and a spherical groove is formed on the protrusion. The lower end surface of the adjusting screw 3 is a spherical surface, which is located within the spherical groove. Furthermore, through the cooperation of the spherical surface and the spherical groove, the adjusting screw 3 can have a certain angular adjustment space during rotation to accommodate the slight tilt that the engineering vehicle 1 may experience under different terrains or usage conditions, thereby ensuring the smooth rotation of the adjusting screw 3.

[0030] Furthermore, as a preferred embodiment, the upper end of the adjusting screw 3 is provided with a hexagonal post 32.

[0031] The working principle of this utility model is as follows: In use, the testing machine can be connected to the engineering vehicle 1. The lower end of the adjusting screw 3 is passed through the self-aligning ball bearing 5 and inserted into the spherical groove of the foot plate 2. The connecting block 42 is sleeved on the outside of the adjusting screw 3. Then, the connecting block 42 is connected to the U-shaped base 1 by screws 6. Then, the operator can use common external tools such as hex wrenches to turn the hexagonal column 32 to make the adjusting screw 3 rotate. The rotation of the adjusting screw 3 causes the connecting block 42 to move up and down along the adjusting screw 3. The up and down movement of the connecting block 42 can drive the engineering vehicle 1 to move up and down. The testing machine will also move up and down with the up and down movement of the engineering vehicle 1, thereby realizing the lifting and lowering movement of the testing machine. When the testing machine moves to a suitable height, stop turning the hexagonal column 32, and sleeve the screw nut 43 on the outside of the adjusting screw 3, so that the lower end of the screw nut 43 abuts against the upper end of the connecting block 42, thereby fixing the height of the testing machine.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device with a lead screw assembly, characterized in that, include: The system includes an engineering vehicle, base plates, an adjusting screw, and a screw nut block. Several base plates are installed on the outer side of the engineering vehicle. The lower end of the adjusting screw is connected to the base plates. The screw nut block is sleeved around the adjusting screw. The engineering vehicle is connected to the screw nut block.

2. The lifting device with lead screw assembly according to claim 1, characterized in that, Also includes: A self-aligning ball bearing is disposed inside the base plate and sleeved around the adjusting screw.

3. The lifting device with lead screw assembly according to claim 2, characterized in that, The engineering vehicle includes: a U-shaped base, with several rollers at the lower end of the U-shaped base, and several first threaded holes on the outer side wall of the U-shaped base.

4. The lifting device with lead screw assembly according to claim 3, characterized in that, The lead screw nut block has several second threaded holes, the first threaded holes and the second threaded holes are engaged, and screws are installed in the first threaded holes and the second threaded holes. The lead screw nut block is connected to the U-shaped base through the screws.

5. The lifting device with lead screw assembly according to claim 4, characterized in that, The lead screw nut block includes a connecting block and a lead screw nut. The lead screw nut is detachably disposed on the upper end of the connecting block. The connecting block is connected to the U-shaped base by the screw. The lower end of the adjusting lead screw passes through the connecting block and the lead screw nut.

6. The lifting device with lead screw assembly according to claim 5, characterized in that, A limiting block is sleeved around the adjusting screw. The limiting block is located between the self-aligning ball bearing and the connecting block, and the lower end of the limiting block abuts against the upper end of the self-aligning ball bearing.

7. The lifting device with lead screw assembly according to claim 3, characterized in that, Several of the aforementioned foot plates are evenly arranged on both sides of the U-shaped base.

8. The lifting device with lead screw assembly according to claim 2, characterized in that, The lower inner wall of the footplate is provided with a protrusion, and a spherical groove is formed on the protrusion. The lower end surface of the adjusting screw is a spherical surface, and the spherical surface is located in the spherical groove.

9. The lifting device with lead screw assembly according to claim 2, characterized in that, The upper end of the adjusting screw is provided with a hexagonal prism.

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