Lifting mechanism

Abstract

The utility model provides a lifting mechanism. The lifting mechanism comprises a driving module, a transmission module and an adsorption module. The driving module comprises a driving part and a connecting plate. The transmission module comprises a first connecting block, a first sliding block, a first connecting rod, a second connecting rod and a linear guide rail. The extending direction of the linear guide rail is perpendicular to the moving direction of the first sliding block. The adsorption module comprises a second connecting block and a suction cup fixed to the second connecting block. According to the lifting mechanism, on the premise that an extra driving part for moving in the vertical direction is not added, the transmission module and other structures are arranged, the transmission module can convert horizontal movement of the driving part into vertical movement of the suction cup, and the effect that the suction cup ascends and descends in the vertical direction in a limited space is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to a lifting mechanism. BACKGROUND

[0002] In the automatic testing of a mobile phone mainboard, the mainboard is mainly taken and placed by a suction cup of a lifting mechanism. In order to ensure the stable operation of the automatic testing, the position of the suction cup needs to be adjusted in time. However, due to the limitation of jigs, carrier plates and cabinets and other factors, the lifting mechanism is generally only provided with a cylinder which can move horizontally, and cannot be provided with a cylinder which can move in the vertical direction.

[0003] Therefore, it is urgent to design a lifting mechanism which can realize lifting in limited space. CONTENT OF THE INVENTION

[0004] Therefore, the application provides a lifting mechanism which can realize lifting in limited space.

[0005] An embodiment of the application provides a lifting mechanism which comprises a driving module, a transmission module and a suction module. The driving module comprises a driving piece and a connecting plate, and the driving piece is fixed to the connecting plate. The transmission module comprises a first connecting block, a first sliding block, a first connecting rod, a second connecting rod and a linear guide rail. The first connecting block is fixed to the connecting plate, and the first connecting block is provided with a groove. The first sliding block is connected with the driving piece and can move in the groove under the action of the driving piece. The first sliding block is provided with a protrusion which extends into the first connecting rod and can move in the first connecting rod. One end of the first connecting rod is rotationally connected with the first connecting block, and the other end of the first connecting rod is rotationally connected with one end of the second connecting rod. The extension direction of the linear guide rail is perpendicular to the moving direction of the first sliding block. The suction module comprises a second connecting block and a suction cup fixed to the second connecting block, and the end of the second connecting rod away from the first connecting rod is fixed to the second connecting block. The second connecting block is connected with the linear guide rail.

[0006] In an embodiment, the first connecting rod is provided with a first through groove which penetrates the first connecting rod in the thickness direction of the first connecting rod. The protrusion extends into the first through groove and can move in the first through groove under the action of the driving piece.

[0007] In an embodiment, the protrusion is a circular ring or a circular column. Along the extension direction of the first connecting rod, the two ends of the first through groove are provided with arc-shaped side walls.

[0008] In an embodiment, the second connecting rod is provided with a second through groove which penetrates the second connecting rod in the thickness direction of the second connecting rod. The second connecting rod is further provided with a third through groove which penetrates the second connecting rod in the width direction of the second connecting rod, and the third through groove and the second through groove are communicated.

[0009] In one embodiment, the transmission module further comprises a limiting plate. The limiting plate is fixed to the connecting plate, and at least part of the limiting plate extends into the third through slot.

[0010] In one embodiment, the linear guide rail comprises a base plate, a slide rail and a second slide block. The base plate is fixed to the connecting plate, and the slide rail is fixed to the base plate. The second slide block is in sliding connection with the slide rail, and the second connecting block is fixed to the second slide block.

[0011] In one embodiment, the second connecting block comprises a first part and a second part connected perpendicularly. The first part is fixed to the second slide block, and the suction disc is fixed to the second part.

[0012] In one embodiment, the suction module further comprises a vacuum generator, and the vacuum generator is fixed to the second part. The vacuum generator is connected to the suction disc, and a gas pipe joint is arranged on the vacuum generator.

[0013] In one embodiment, the driving member comprises a body and a piston rod extending from the body. The body is fixed to the connecting plate, and the piston rod is connected to the first slide block.

[0014] In one embodiment, the driving module further comprises a mounting plate. The body is fixed to the mounting plate, and the mounting plate is fixed to the first connecting block.

[0015] The lifting mechanism of the present application can realize the lifting of the suction disc in the vertical direction in a limited space without adding additional driving members for vertical movement, by means of the transmission module and other structures. The transmission module can convert the horizontal movement of the driving member into the vertical movement of the suction disc, thereby achieving the effect of lifting the suction disc in the vertical direction in a limited space. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of a lifting mechanism according to an embodiment of the present application.

[0017] Figure 2 FIG. 2 is an exploded structural schematic diagram of the lifting mechanism shown in FIG. 1. Figure 1

[0018] Figure 3 FIG. 3 is a schematic diagram of the lifting mechanism shown in FIG. 1 from another perspective. Figure 1

[0019] Figure 4 FIG. 4 is a schematic diagram of the second connecting rod and the limiting plate of the lifting mechanism shown in FIG. 1 from another perspective. Figure 1

[0020] Figure 5 FIG. 5 is a schematic diagram of the second connecting rod and the limiting plate of the lifting mechanism shown in FIG. 1 from another perspective.​​​Figure 1 schematic diagram of the lifting mechanism shown in another state.

[0021] Figure 6 schematic diagram of the lifting mechanism shown in another state. Figure 1 schematic diagram of the lifting mechanism shown in another state.

[0022] Figure 7 schematic diagram of the lifting mechanism shown in another state. Figure 1 schematic diagram of the lifting mechanism shown in another state.

[0023] Explanation of main element symbols

[0024] 100: lifting mechanism; 10: driving module; 20: transmission module; 30: adsorption module; 11: driving piece; 12: connecting plate; 13: mounting plate; 111: body; 112: piston rod; 21: first connecting block; 22: first sliding block; 23: first connecting rod; 24: second connecting rod; 25: linear guide rail; 26: protrusion; 27: limiting plate; 210: groove; 230: first through groove; 240: second through groove; 241: third through groove; 251: base plate; 252: sliding rail; 253: second sliding block; 254: limiting block; 31: second connecting block; 32: suction cup; 33: vacuum generator; 311: first part; 312: second part;

[0025] 331: air pipe joint.

[0026] The following detailed description will further illustrate the embodiments of the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the application belong. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the embodiments of the application. Unless otherwise noted, the specific conditions used in the examples are those that are conventional or are those that are indicated by the manufacturer to be the recommended conditions. Unless otherwise noted, the reagents or instruments used are conventional products that are commercially available.

[0028] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0029] It will be understood that when a layer is referred to as being "on" another layer, it can be directly on the other layer or intervening layers can also be present. In contrast, when a layer is referred to as being "directly on" another layer, there are no intervening layers present. When a component is referred to as being "fixed", "attached", "connected" or "set up" to another component, it can be directly on the other component or intervening components can also be present.

[0030] In addition, the terms "first", "second", and the like, as used in this application, are used only to describe the different layers, and do not imply or suggest relative importance or an order of magnitude of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0031] It can be understood that when describing two components arranged in parallel / vertical, the included angle between the two components allows a tolerance of ±10% relative to the standard parallel / vertical.

[0032] Some embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments and features of the embodiments described below can be combined with each other as long as there is no conflict.

[0033] Please refer to Figure 1 and Figure 2The application provides a lifting mechanism 100, which comprises a driving module 10, a transmission module 20 and a suction module 30. The driving module 10 comprises a driving piece 11 and a connecting plate 12, and the driving piece 11 is fixed to the connecting plate 12. The transmission module 20 comprises a first connecting block 21, a first sliding block 22, a first connecting rod 23, a second connecting rod 24 and a linear guide rail 25. The first connecting block 21 is fixed to the connecting plate 12, and the first connecting block 21 and the driving piece 11 are arranged at intervals along the extending direction of the connecting plate 12. The first connecting block 21 is provided with a groove 210, which is formed by inwardly recessing a side surface of the first connecting block 21. The first sliding block 22 is connected with the driving piece 11 and is accommodated in the groove 210. The first sliding block 22 is movable in the groove 210 along the horizontal direction (i.e. the extending direction of the connecting plate 12) under the action of the driving piece 11. The surface of the first sliding block 22, which is away from the groove 210, is provided with a protrusion 26, which extends into the first connecting rod 23 and is movable in the first connecting rod 23 under the action of the first sliding block 22. One end of the first connecting rod 23 is rotationally connected with the first connecting block 21, and the other end of the first connecting rod 23 is rotationally connected with one end of the second connecting rod 24. The extending direction of the linear guide rail 25 is perpendicular to the moving direction of the first sliding block 22, and in the embodiment, the linear guide rail 25 extends along the vertical direction (i.e. the thickness direction of the connecting plate 12). The suction module 30 comprises a second connecting block 31 and a suction disc 32 fixed to the second connecting block 31. The other end of the second connecting rod 24, which is away from the first connecting rod 23, is fixed to the second connecting block 31, and the second connecting block 31 is connected with the linear guide rail 25.

[0034] When the driving piece 11 drives the first sliding block 22 to move in the groove 210 along the horizontal direction, the protrusion 26 on the first sliding block 22 will move in the first connecting rod 23, the protrusion 26 drives the first connecting rod 23 to rotate (rotate with the connecting point of the first connecting rod 23 and the first connecting block 21 as the fulcrum), and the rotation of the first connecting rod 23 will drive the second connecting rod 24 to rotate. The rotation of the second connecting rod 24 will drive the second connecting block 31 to move on the linear guide rail 25 along the vertical direction, so that the suction disc 32 on the second connecting block 31 moves in the vertical direction. Without increasing additional driving piece 11 for vertical movement, the horizontal movement of the driving piece 11 is converted into the vertical movement of the suction disc 32 by arranging the transmission module 20, so that the suction disc 32 can be lifted in the vertical direction in a limited space.

[0035] In some embodiments, as Figure 1 and Figure 2As shown, the driving member 11 comprises a body 111 and a piston rod 112 extending from the body 111, the extending direction of the piston rod 112 is substantially parallel to the extending direction of the connecting plate 12. The body 111 is fixed on the connecting plate 12, and the end of the piston rod 112 away from the body 111 is connected with the first slider 22. The driving member 11 can be but is not limited to a cylinder, and in the embodiment, the cylinder is a cylinder capable of reciprocating linear motion.

[0036] Further, the driving module 10 further comprises a mounting plate 13. The body 111 is fixed on the mounting plate 13, and the mounting plate 13 can be fixed on the side surface of the first connecting block 21 by means of but not limited to fasteners such as screws, and the first connecting block 21 can be fixed on the top surface of the connecting plate 12 by means of but not limited to fasteners such as screws, so as to fix the driving member 11 on the connecting plate 12. The mounting plate 13 can be perpendicular to the connecting plate 12, and the mounting plate 13 can be in contact with or not in contact with the connecting plate 12, which is not limited in the application.

[0037] In some embodiments, as shown in Figure 1 and Figure 2 The first connecting rod 23 is provided with a first through slot 230, and the first through slot 230 penetrates through the first connecting rod 23 along the thickness direction of the first connecting rod 23. The protrusion 26 extends into (is embedded in) the first through slot 230 and can move in the first through slot 230 under the action of the driving member 11. The shape and size of the protrusion 26 are adapted to the first through slot 230, so that the protrusion 26 can be just clamped in the first through slot 230 without falling out.

[0038] Further, the protrusion 26 can be a circular ring or a circular column. Along the extending direction of the first connecting rod 23, the two ends of the first through slot 230 have arc-shaped side walls which can be in close contact with the side surface of the protrusion 26.

[0039] In some embodiments, as shown in Figures 2 to 4 The second connecting rod 24 is substantially curved and arc-shaped, and the second connecting rod 24 is provided with a second through slot 240 and a third through slot 241 which are communicated. The second through slot 240 penetrates through the second connecting rod 24 along the thickness direction of the second connecting rod 24, and the third through slot 241 penetrates through the second connecting rod 24 along the width direction of the second connecting rod 24. In the embodiment, the front and back surfaces of the second connecting rod 24 are penetrated by the second through slot 240, the left and right surfaces of the second connecting rod 24 are penetrated by the third through slot 241, and the inside of the second connecting rod 24 is hollow.

[0040] Further, the transmission module 20 further comprises a limiting plate 27 which is fixed on the connecting plate 12. As shown in Figure 3 and Figure 4As shown, at least part of the limiting plate 27 extends into the third through slot 241 and can extend out of the third through slot 241. The limiting plate 27 is equivalent to being embedded into the second connecting rod 24, so that when the first connecting rod 23 drives the second connecting rod 24 to rotate, the limiting plate 27 can limit the shaking of the second connecting rod 24 along the thickness direction of the second connecting rod 24, thereby improving the stability of the movement of the second connecting rod 24.

[0041] In some embodiments, as shown in Figure 2 As shown, the linear guide rail 25 includes a base plate 251, a sliding rail 252 and a second sliding block 253. The extending direction of the base plate 251 and the sliding rail 252 are both perpendicular to the moving direction of the first sliding block 22, and in this embodiment, the extending direction of the base plate 251 and the sliding rail 252 are both the vertical direction in the first connecting rod 23. Figure 2 The base plate 251 is fixed to the connecting plate 12, and the sliding rail 252 is fixed to the base plate 251. The second sliding block 253 is in sliding connection with the sliding rail 252, that is, the second sliding block 253 can move on the sliding rail 252. As shown in Figure 3 The second connecting block 31 is fixed to the second sliding block 253, so that the second connecting block 31 can also move with the movement of the second sliding block 253, thereby driving the movement of the suction cup 32 on the second connecting block 31. The linear guide rail 25 can realize high-precision linear motion, thereby ensuring the high-precision movement of the suction cup 32 in the vertical direction.

[0042] Further, the linear guide rail 25 can also include a limiting block 254. The limiting block 254 is fixed to both ends of the extending direction of the sliding rail 252 to limit the movement of the second sliding block 253 and prevent the second sliding block 253 from derailing.

[0043] In some embodiments, as shown in Figure 2 and Figure 3 As shown, the second connecting block 31 includes a first part 311 and a second part 312 which are connected perpendicularly. The first part 311 is fixed to the second sliding block 253, and the suction cup 32 is fixed to the second part 312.

[0044] Further, the suction module 30 also includes a vacuum generator 33, and the vacuum generator 33 is fixed to the second part 312. The vacuum generator 312 is connected with the suction cup 32, and the vacuum generator 33 is provided with an air pipe joint 331. The air pipe joint 331 can be used for external connection of an air source, so that a negative pressure is generated in the suction cup 32, thereby improving the stability of the suction of the suction cup 32.

[0045] When not in use, as shown in Figure 5 The driving member 11 is not turned on, the piston rod 112 is retracted, the first sliding block 22 is at the front end of the groove 210, and the protrusion 26 is also at the front end of the first through slot 230. At this time, the second connecting rod 24 and the suction cup 32 are in a high position and can avoid other working components. When in use, as shown in Figure 6As shown, the driving member 11 is opened, the piston rod 112 is extended, the first slider 22 is driven to move in the horizontal direction in the groove 210, the protrusion 26 on the first slider 22 moves in the first through groove 230, and the first connecting rod 23 is driven to rotate downward as a whole. The first connecting rod 23 drives the second connecting rod 24 to rotate downward, and drives the second connecting block 31 at the end of the second connecting rod 24 to move downward on the linear guide rail 25, so that the suction cup 32 on the second connecting block 31 is lowered in the vertical direction, and then the working point position can be reached, such as Figure 7 When the suction cup 32 finishes work, the piston rod 112 can be retracted, driving the first connecting rod 23 and the second connecting rod 24 to rotate upward as a whole, so that the suction cup 32 is raised in the vertical direction and returns to the avoiding position.

[0046] The lifting mechanism 100 of the embodiment of the application, without increasing an additional driving member 11 for vertical movement, through the setting of the transmission module 20 and the like, the transmission module 20 can convert the horizontal movement of the driving member 11 into the vertical movement of the suction cup 32, thereby achieving the effect of lifting the suction cup 32 in the vertical direction in a limited space.

[0047] The above description is some specific embodiments of the application, but in the actual application process, it cannot be limited to these embodiments only. Other modifications and changes made by those skilled in the art according to the technical concept of the application should belong to the protection scope of the application.

Claims

1. A lifting mechanism, characterized in that The utility model relates to a kind of vacuum adsorption device, including: Drive module, including driving part and connecting plate, the driving part is fixed to the connecting plate; Transmission module, including first connecting block, first slider, first connecting rod, second connecting rod and linear guide rail;The first connecting block is fixed to the connecting plate, the first connecting block is equipped with groove;The first slider is connected with the driving part, and can move in the groove under the action of the driving part, the first slider is equipped with protrusion, the protrusion is inserted into the first connecting rod and can move in the first connecting rod;The first connecting rod is rotatably connected with the first connecting block at one end, and the other end of the first connecting rod is rotatably connected with one end of the second connecting rod;The extension direction of the linear guide rail is perpendicular to the moving direction of the first slider; Suction module, including second connecting block and suction disc fixed on the second connecting block, the end of the second connecting rod away from the first connecting rod is fixed on the second connecting block, and the second connecting block is connected with the linear guide rail.

2. The lifting mechanism of claim 1, wherein, The first connecting rod is provided with a first through groove penetrating the first connecting rod along its thickness direction, and the protrusion is inserted into the first through groove and can move in the first through groove under the action of the driving part.

3. The lifting mechanism of claim 2, wherein, The protrusion is a circular ring or a cylindrical shape;Along the extension direction of the first connecting rod, the two ends of the first through groove have arc-shaped side walls.

4. The lift mechanism of claim 1, wherein, The second connecting rod is provided with a second through groove penetrating the second connecting rod along its thickness direction, and the second connecting rod is also provided with a third through groove penetrating the second connecting rod along its width direction, and the third through groove and the second through groove are communicated.

5. The lifting mechanism of claim 4, wherein, The transmission module further includes a limiting plate, the limiting plate is fixed to the connecting plate, and at least part of the limiting plate is inserted into the third through groove.

6. The lift mechanism of claim 1, wherein, The linear guide rail includes a base plate, a slide rail and a second slider, the base plate is fixed to the connecting plate, the slide rail is fixed to the base plate, the second slider is slidably connected with the slide rail, and the second connecting block is fixed to the second slider.

7. The lifting mechanism of claim 6, wherein, The second connecting block includes a first part and a second part connected perpendicularly, the first part is fixed to the second slider, and the suction disc is fixed to the second part.

8. The lifting mechanism of claim 7, wherein, The suction module further includes a vacuum generator, the vacuum generator is fixed to the second part, the vacuum generator is connected with the suction disc, and a gas connector is arranged on the vacuum generator.

9. The lift mechanism of claim 1, wherein, The driving part includes a body and a piston rod extending from the body, the body is fixed to the connecting plate, and the piston rod is connected with the first slider.

10. The lifting mechanism of claim 9, wherein, The drive module further includes a mounting plate, the body is fixed to the mounting plate, and the mounting plate is fixed to the first connecting block.

Images