CN215364697U

CN215364697U - Lifting mechanism

Info

Publication number: CN215364697U
Application number: CN202121054960.8U
Authority: CN
Inventors: 苏启贵
Original assignee: Shenzhen Meisen Electromechanical Equipment Co ltd
Current assignee: Shenzhen Meisen Electromechanical Equipment Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-31
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a lifting mechanism which comprises a supporting plate, wherein a carrying platform is arranged above the supporting plate, a screw rod nut is embedded on the supporting plate and is in rotating fit with the supporting plate, a screw rod is arranged in the screw rod nut in a penetrating manner, the screw rod is in threaded fit with the screw rod nut, the upper end of the screw rod is fixedly connected with the carrying platform, the lower end of the screw rod extends towards the lower part of the screw rod nut, and a driving motor for driving the screw rod nut to rotate is arranged on the supporting plate. The utility model does not occupy the space above the carrying platform, and has simple structure and easy realization.

Description

Lifting mechanism

Technical Field

The utility model relates to automation equipment, in particular to a lifting mechanism.

Background

Among the prior art, common elevating system is generally through the structure of the vice mutually supporting of lead screw and lead screw, specifically mean, order about the lead screw through the motor and rotate, and then drive the vice up-and-down motion of lead screw, thereby order about corresponding mechanism and realize going up and down, but this type of mechanism needs the lead screw to extend certain length to the top, to some elevating system that the top has horizontal microscope carrier, then need increase some comparatively complicated complementary unit and just can realize rising and decline function, lead to current lead screw drive mechanism not easily to use with horizontal microscope carrier cooperation, can not satisfy corresponding technical demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a lifting mechanism which does not occupy the space above a carrying platform, has a simple structure and is easy to realize, aiming at the defects of the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme.

The lifting mechanism comprises a supporting plate, a loading platform is arranged above the supporting plate, a screw nut is embedded in the supporting plate and is in running fit with the supporting plate, a screw rod penetrates through the screw nut and is in threaded fit with the screw nut, the upper end of the screw rod is fixedly connected with the loading platform, the lower end of the screw rod extends towards the lower part of the screw nut, and a driving motor used for driving the screw nut to rotate is arranged on the supporting plate.

Preferably, the outer side of the screw rod nut is sleeved with a bearing inner sleeve which is fixedly connected with the screw rod nut, a bearing is embedded in the supporting plate, and the bearing inner sleeve penetrates through the bearing.

Preferably, a turntable is fixed at the lower end of the bearing inner sleeve, the screw rod penetrates through the turntable, a gap is formed between the turntable and the bearing inner sleeve, a driving belt wheel is sleeved on an output shaft of the driving motor, and a lifting transmission belt is sleeved on the driving belt wheel and the outer side of the turntable.

Preferably, a motor support is fixed to the bottom of the support plate, and the driving motor is mounted on the motor support.

Preferably, at least two vertical sliding rods are fixed at the bottom of the carrier, at least two sliding rod sleeves penetrate through the supporting plate, the vertical sliding rods are aligned with the sliding rod sleeves one by one, and the vertical sliding rods penetrate through the sliding rod sleeves and are in sliding fit with the sliding rod sleeves.

Preferably, the number of the vertical slide bars and the slide bar sleeves is 4.

Preferably, the bottom of backup pad is fixed with four stands, and four stands are located respectively four corners of backup pad, and the lower extreme of four stands all with predetermined base fixed connection.

In the lifting mechanism disclosed by the utility model, the rotatable screw rod nut is arranged on the supporting plate, the upper end of the screw rod penetrating through the screw rod nut is fixedly connected with the carrying platform, when the driving motor drives the screw rod nut to rotate, the screw rod and the carrying platform can be driven to lift together based on the thread fit relation of the screw rod nut and the screw rod, so that the lifting function is realized, meanwhile, the screw rod does not need to penetrate out of the carrying platform, so that the bearing function of the carrying platform is ensured, and meanwhile, the lifting mechanism is simple in structure and easy to realize, and is particularly suitable for being applied to equipment such as a clamping turnover device and the like.

Drawings

FIG. 1 is a perspective view of a clasping and flipping device;

FIG. 2 is a front view of the clasping and flipping mechanism;

FIG. 3 is a side view of the clasping and flipping mechanism;

FIG. 4 is a perspective view of the lift mechanism;

FIG. 5 is a front view of the lift mechanism;

fig. 6 is a sectional view of the elevating mechanism.

Detailed Description

The utility model is described in more detail below with reference to the figures and examples.

Example one

The embodiment provides a lifting mechanism, as shown in fig. 4 to 6, the lifting mechanism 3 includes a supporting plate 30, a carrying platform 4 is disposed above the supporting plate 30, a lead screw nut 31 is embedded on the supporting plate 30, the lead screw nut 31 is rotationally matched with the supporting plate 30, a lead screw 32 is inserted into the lead screw nut 31, the lead screw 32 is in threaded fit with the lead screw nut 31, the upper end of the lead screw 32 is fixedly connected with the carrying platform 4, the lower end of the lead screw 32 extends to the lower side of the lead screw nut 31, and a driving motor 33 for driving the lead screw nut 31 to rotate is disposed on the supporting plate 30.

In the above lifting mechanism, the rotatable lead screw nut 31 is installed on the supporting plate 30, and the upper end of the lead screw 32 penetrating through the lead screw nut 31 is fixedly connected with the carrier 4, when the driving motor 33 drives the lead screw nut 31 to rotate, the lead screw 32 and the carrier 4 can be driven to lift together based on the thread fit relationship between the lead screw nut 31 and the lead screw 32, so that the lifting function is realized, and meanwhile, the lead screw 32 does not need to penetrate out of the carrier 4, so that the bearing function of the carrier 4 is ensured.

In order to ensure that the lead screw nut 31 can reliably rotate, in the present embodiment, a bearing inner sleeve 34 is sleeved on the outer side of the lead screw nut 31 and is fixedly connected with the lead screw nut 31, a bearing 35 is embedded on the support plate 30, and the bearing inner sleeve 34 penetrates through the bearing 35.

In this embodiment, a belt transmission manner is preferably adopted, specifically, a turntable 36 is fixed at the lower end of the bearing inner sleeve 34, the lead screw 32 penetrates through the turntable 36, a gap 360 is formed between the two, a driving pulley 330 is sleeved on an output shaft of the driving motor 33, and a lifting transmission belt 331 is sleeved on the driving pulley 330 and the outer side of the turntable 36.

In order to better fix the motor, in this embodiment, the motor holder 300 is fixed to the bottom of the support plate 30, and the driving motor 33 is mounted on the motor holder 300.

In order to enable the carrier 4 to move vertically and horizontally, in this embodiment, at least two vertical sliding rods 400 are fixed at the bottom of the carrier 4, at least two sliding rod sleeves 301 are arranged on the supporting plate 30 in a penetrating manner, the vertical sliding rods 400 are aligned with the sliding rod sleeves 301 one by one, and the vertical sliding rods 400 penetrate through the sliding rod sleeves 301 and are in sliding fit with the sliding rod sleeves 301.

Preferably, the number of the vertical sliding rod 400 and the sliding rod sleeve 301 is 4.

In this embodiment, four upright columns 302 are fixed at the bottom of the supporting plate 30, the four upright columns 302 are respectively disposed at four corners of the supporting plate 30, and the lower ends of the four upright columns 302 are all fixedly connected to the preset base 1.

Example two

The embodiment provides a holding clamp overturning device, which is shown in fig. 1 to 3, and comprises a base 1, two vertical plates 2 are fixed on the base 1, a lifting mechanism 3 is arranged on the base 1, a carrier 4 for holding a jig 5 is arranged at the top of the lifting mechanism 3, the lifting mechanism 3 drives the carrier 4 to ascend or descend, a cylinder support 7 is arranged on the vertical plate 2 and rotatably connected with the vertical plate, the cylinder support 7 is positioned above the carrier 4, the cylinder supports 7 on the two vertical plates 2 are oppositely arranged, a positioning cylinder 6 is arranged on the cylinder support 7, telescopic ends of the two positioning cylinders 6 are oppositely arranged, and when the carrier 4 lifts the jig 5 to between the two positioning cylinders 6, the telescopic ends of the two positioning cylinders 6 relatively move and clamp the jig 5, and the vertical plate 2 is provided with a turnover driving mechanism 8 for driving the air cylinder support 7 to turn over according to an angle of 180 degrees.

The working principle of the holding and clamping turnover device is as follows: after a workpiece is placed on the jig 5, the lifting mechanism 3 drives the carrier 4 to ascend until the jig 5 is lifted between the two positioning cylinders 6, then the two positioning cylinders 6 move and clamp the jig 5, the lifting mechanism 3 drives the carrier 4 to descend and avoid, the overturning driving mechanism 8 moves and drives the cylinder support 7, the positioning cylinders 6 and the jig 5 to overturn by 180 degrees, finally the lifting mechanism 3 drives the carrier 4 to ascend, the two positioning cylinders 6 loosen and place the jig 5 on the carrier 4, and the lifting mechanism 3 drives the carrier 4 to descend to complete the clamping, ascending, descending and overturning actions. Based on the principle, the multifunctional lifting clamp realizes the functions of lifting, clamping and overturning, and compared with the realization mode of adopting a multi-axis robot or manpower in the prior art, the multifunctional lifting clamp has the advantages of simpler structure, lower cost, better accuracy and higher working efficiency.

In order to better clamp the positioning cylinder 6, in the embodiment, the cylinder support 7 is a U-shaped support with two clamping plates, and the positioning cylinder 6 is fixed between the two clamping plates of the cylinder support 7.

In order to realize the rotating fit, in this embodiment, a rotating shaft 70 is disposed on a side of the cylinder support 7 facing away from the positioning cylinder 6, a bearing assembly 20 is embedded on the vertical upright plate 2, and the rotating shaft 70 passes through the bearing assembly 20 and is in rotating fit with the bearing assembly 20.

Preferably, a positioning plate 60 is fixed to the telescopic shaft of the positioning cylinder 6.

Further, the positioning plate 60 is provided with at least two positioning columns 61, the side plate of the jig 5 is provided with positioning holes 50, the positioning holes 50 are aligned with the positioning columns 61 one by one, and when the telescopic ends of the two positioning cylinders 6 move relatively, the positioning columns 61 are inserted into the positioning holes 50.

Based on the inserting fit of the positioning hole 50 and the positioning column 61, the fixture 5 can be better clamped and positioned.

Furthermore, four positioning columns 61 are disposed on the positioning plate 60.

This embodiment is still including transmission shaft 9, two vertical riser 2 are passed respectively at the both ends of transmission shaft 9, just transmission shaft 9 with vertical riser 2 normal running fit, the both ends of transmission shaft 9 are overlapped respectively and are equipped with first band pulley 90, the cover is equipped with second band pulley 71 on the pivot 70, first band pulley 90 with the outside cover of second band pulley 71 is equipped with upset driving belt 91, borrows by upset actuating mechanism 8 orders about transmission shaft 9 rotates.

In addition, the present embodiment further includes an air cylinder support 22, the air cylinder support 22 is fixedly connected to one of the two vertical plates 2, a 180 ° revolving air cylinder 23 is fixed on the air cylinder support 22, and the 180 ° revolving air cylinder 23 drives the transmission shaft 9 to rotate. Under the matching action of the 180-degree rotary air cylinder 23 and the transmission shaft 9, the air cylinder supports 7 on the two vertical plates 2 can be driven to synchronously rotate only through one rotary air cylinder.

In order to more stably and reliably cooperate with the jig 5, in this embodiment, four stoppers 40 are fixed on the stage 4, the four stoppers 40 are respectively disposed at four corners of the stage 4, and a carrying station 41 for placing the jig 5 is formed between the four stoppers 40.

Preferably, the stopper 40 is an "L" shaped stopper, and an inner corner of the stopper 40 is aligned with an outer corner of the jig 5.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.

Claims

1. The lifting mechanism is characterized in that the lifting mechanism comprises a supporting plate, a loading platform is arranged above the supporting plate, a screw rod nut is embedded in the supporting plate and is in running fit with the supporting plate, a screw rod penetrates through the screw rod nut and is in threaded fit with the screw rod nut, the upper end of the screw rod is fixedly connected with the loading platform, the lower end of the screw rod extends towards the lower part of the screw rod nut, and a driving motor used for driving the screw rod nut to rotate is arranged on the supporting plate.

2. The lifting mechanism as claimed in claim 1, wherein the screw nut is provided with an inner bearing sleeve on the outer side thereof and fixedly connected therewith, and the support plate is embedded with a bearing through which the inner bearing sleeve passes.

3. The lifting mechanism as claimed in claim 2, wherein a turntable is fixed to a lower end of the inner bearing sleeve, the screw rod passes through the turntable with a gap therebetween, a driving pulley is sleeved on an output shaft of the driving motor, and a lifting transmission belt is sleeved on the driving pulley and an outer side of the turntable.

4. The elevating mechanism as claimed in claim 1, wherein a motor support is fixed to a bottom of the support plate, and the driving motor is mounted on the motor support.

5. The lifting mechanism as claimed in claim 1, wherein at least two vertical sliding rods are fixed at the bottom of the carrier, at least two sliding rod sleeves are arranged on the supporting plate in a penetrating manner, the vertical sliding rods are aligned with the sliding rod sleeves one by one, and the vertical sliding rods penetrate through the sliding rod sleeves and are in sliding fit with the sliding rod sleeves.

6. The lift mechanism of claim 5, wherein the number of vertical slide bars and slide bar sleeves is 4.

7. The lifting mechanism as claimed in claim 1, wherein four pillars are fixed to the bottom of the supporting plate, four pillars are respectively disposed at four corners of the supporting plate, and lower ends of the four pillars are fixedly connected to a predetermined base.