CN111874850A

CN111874850A - Sample injection bottle grabbing cover opening and closing mechanism

Info

Publication number: CN111874850A
Application number: CN202010810091.0A
Authority: CN
Inventors: 王安敏; 张兄利; 赵柯; 刘家朋
Original assignee: Shanghai X Imaging Technology Co ltd
Current assignee: Shanghai X Imaging Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-03

Abstract

The invention relates to the technical field of automatic control equipment, and discloses a sample bottle grabbing cover opening and closing mechanism which comprises a cylindrical shell, wherein a telescopic driving mechanism is arranged at the upper part in the shell, a clamping jaw body is arranged at the lower part in the shell, the head part of the clamping jaw body is positioned in the shell and is fixed with a telescopic shaft of the telescopic driving mechanism, the clamping jaw body is hollow, a horn mouth is formed at the lower part of the clamping jaw body and is positioned at the outer side below the shell, a plurality of notches are formed in the horn mouth, and the caliber of the horn mouth is larger than the diameter of the shell. The invention has small occupied space, reduces the size of the automatic equipment and reduces the cost by the tightening type gripper.

Description

Sample injection bottle grabbing cover opening and closing mechanism

Technical Field

The invention relates to the technical field of automatic control equipment, in particular to a sample injection bottle grabbing cover opening and closing mechanism.

Background

In laboratory automation equipment, the quantity of reagent storage sample bottles is large, and in the process of reagent treatment each time, the sample bottles need to be grabbed, uncapped, closed, transferred, oscillated and the like.

In the existing automation equipment, the device for realizing the above functions generally adopts a pneumatic gripper to cooperate with an electric rotating mechanism and a lifting mechanism to realize the grabbing of the sample bottle, and the actions of opening and closing the cover in the lifting rotating mode after the grabbing are carried out. The size of the existing pneumatic gripper is large, particularly for sample injection bottles within 5ml, the gripper space occupation proportion is larger, and compared with the pneumatic gripper, the electric gripper is small in space occupation proportion, but cannot meet the requirement of miniaturization development of automation equipment.

Disclosure of Invention

The invention aims to solve the problems and provides a sample bottle grabbing, opening and closing mechanism which has the advantages that the occupied space is small, the size of automatic equipment is reduced, and the cost is reduced through a tightening type gripper.

The technical scheme adopted by the invention is as follows:

the utility model provides a sample bottle snatchs mechanism of opening and shutting, characterized by includes cylindrical casing, and upper portion sets up flexible actuating mechanism in the casing, and the lower part sets up the clamping jaw body in the casing, the head of clamping jaw body is located the casing, and is fixed with flexible actuating mechanism's telescopic shaft, clamping jaw body cavity, lower part form the horn mouth, are located the casing below outside, and it has a plurality of openings to open on the horn mouth, the bore of horn mouth is greater than the diameter of casing.

Further, the lower extreme position of horn mouth sets up protruding ring, the junction of protruding ring is the arc limit, the inboard side fillet of casing lower extreme.

Furthermore, the shell comprises an upper part and a lower part which are connected through a connecting sleeve, and the connecting part is positioned at the upper end of the clamping jaw body.

Further, the top of the stepping motor of the telescopic driving mechanism is also provided with a lead hole.

Further, the inside fixed buffering post that sets up of clamping jaw body, set up the guide pillar through slide bearing in the buffering post, the guide pillar lower extreme is the roof, is thrust spring between roof and buffering post.

Furthermore, the interior of the buffer column is hollow, the guide column extends into the interior of the buffer column, and the guide column and the buffer column are positioned at different heights through the positioning pin.

Further, the included angle of the generatrix of the bell mouth is 30-60 degrees.

Furthermore, the number of the openings on the horn mouth is 3 to 6, and the width of the opening is 0.5 to 1.0 mm.

Further, the top of the shell is arranged on the mounting plate through a bearing, a rotary driving mechanism is arranged on the mounting plate, and the rotary driving mechanism drives the shell to rotate.

Further, the mounting plate is arranged on the lifting mechanism.

The invention has the beneficial effects that:

(1) by the design of the tightening type gripper, the mechanism occupies small space, the size of the automatic equipment is reduced, and the cost is reduced;

(2) the grabbing action is quick and accurate, and the grabbing, cover opening and closing actions are realized by matching with the rotary lifting mechanism;

(3) is more suitable for the operation of a small-dose sampling bottle.

Drawings

FIG. 1 is a schematic structural diagram of the cover opening and closing mechanism of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of the jaw body;

fig. 4 is a schematic view of the installation of the rotary drive mechanism and the lifting mechanism.

The reference numbers in the drawings are respectively:

1. a cover opening and closing mechanism; 2, a shell;

3. a jaw body; 4, a telescopic driving mechanism;

5. a bell mouth; 6, opening;

7. a projecting ring; 8. an upper portion;

9. a wire hole; an intermediate portion;

11. a lower portion; 12, connecting sleeves;

13. a buffer sleeve; 14, a buffer column;

15. a guide post; a top plate;

17. a spring; a rotary drive mechanism;

19. a lifting mechanism; 20, mounting a plate;

21. a belt.

Detailed Description

The following describes in detail a specific embodiment of the sample bottle gripping cover opening and closing mechanism according to the present invention with reference to the accompanying drawings.

Referring to fig. 1, the sampling bottle grabbing cover opening and closing mechanism 1 is used for grabbing a bottle cover of the sampling bottle and operating the sampling bottle. The gripper is arranged below the cover opening and closing mechanism 1, the telescopic driving mechanism 4 is arranged in the cover opening and closing mechanism, and the gripper is driven by the telescopic driving mechanism 4 to grip the sample injection bottle to move.

Referring to fig. 2, a cylindrical housing 2 of the cover opening and closing mechanism 1 is hollow, a clamping jaw body 3 is arranged at a lower portion 11 in the housing 2, a head of the clamping jaw body 3 is located in the housing 2 and fixed with a telescopic shaft of a telescopic driving mechanism 4, the telescopic driving mechanism 4 is a stepping motor, and a main shaft of the stepping motor is fixed with the head of the clamping jaw body 3 through a fastener in a matching manner. The telescopic driving mechanism 4 can also be a displacement component such as an electromagnet.

Referring to the attached drawing 3, the clamping jaw body 3 is hollow, the lower part 11 forms a horn mouth 5, the horn mouth 5 is positioned on the outer side below the shell 2, a plurality of gaps 6 are formed on the horn mouth 5, and the caliber of the horn mouth 5 is larger than the diameter of the shell 2. The included angle of the generatrix of the bell mouth 5 is selected to be 30 to 60 degrees according to the size of the sampling bottle. The number of the gaps 6 on the horn mouth 5 is 3 to 6, and the width of the gap 6 is 0.5 to 1.0 mm. In addition, the lower extreme position of horn mouth 5 sets up protruding ring 7, and the junction of protruding ring 7 is the arc limit for with casing 2 lower extreme cooperation, corresponding, the inboard side fillet of casing 2 lower extreme.

Continuing to refer to fig. 2, the housing 2 is divided into three parts according to the installation positions of the telescopic driving mechanism 4 and the clamping jaw body 3, the telescopic driving mechanism 4 is installed in the upper part 8 of the housing 2, and the top of the housing 2 is provided with a lead hole 9 for a cable of the telescopic driving mechanism 4 to pass through for supplying power. The middle portion 10 of the housing 2 is located at a connecting portion between the jaw body 3 and the telescopic driving mechanism 4, and the lower portion 11 of the housing 2 is located at the middle-lower portion 11 of the jaw body 3. The upper part 8 and the middle part 10 are fixedly connected through fastening screws, the middle part 10 and the lower part 11 are connected through a connecting sleeve 12, and a buffer sleeve 13 is arranged between the connecting sleeve 12 and the connecting part.

A buffer column 14 is fixedly arranged in the clamping jaw body 3, a guide column 15 is arranged in the buffer column 14 through a sliding bearing, the lower end of the guide column 15 is a top plate 16, and a thrust spring 17 is arranged between the top plate 16 and the buffer column 14. The interior of the buffer column 14 is hollow, and the guide column 15 extends into the interior of the buffer column 14 and is positioned at different heights by the positioning pin. In order to match the installation of the components on the clamping jaw body 3, an installation hole is arranged on the connecting sleeve 12, and an operation space for installing a tool is provided.

The lower part 11 of the shell 2 matched with the clamping jaw body 3 is made of polytetrafluoroethylene, and the clamping jaw body 3 is made of spring steel material. The material properties of the lower part 11 of the housing 2 are such that the connection of the middle part of the housing 2 to the lower part 11 of the housing 2 is realized by means of a connecting sleeve 12. And the upper part 8 of the shell 2 and the middle part of the shell 2 are made of metal materials and can be connected by a fastener.

Referring to fig. 4, the cap opening and closing mechanism 1 is mounted on the rotary driving mechanism 18 and the lifting mechanism 19, so that the cap opening and closing mechanism 1 is rotated and lifted, and the cap opening and closing action on the sampling bottle is completed. The top of the shell 2 is arranged at one end of a mounting plate 20 through a bearing, the other end of the mounting plate 20 is provided with a motor rotation driving mechanism 18, and the motor rotation driving mechanism drives the cover opening and closing mechanism 1 to rotate through transmission of a belt 21. The lifting mechanism 19 is also in a motor driving mode, and the mounting plate 20 is arranged on the lifting plate and driven to lift by the lifting mechanism 19. Meanwhile, rotation and lifting are realized, and the cover opening and closing action of the sample injection bottle is realized. The cover opening and closing mechanism 1 is arranged on the moving mechanism and can be moved to a specified position to operate the sample injection bottle.

The specific working process is that the sample bottle is arranged on the material tray, the cover opening and closing mechanism 1 is pressed to the upper part of the material tray by the lifting mechanism 19, the sample bottle enters the bell mouth 5 of the clamping jaw body 3, and the guide pillar 15 is jacked up by the bottle cover of the sample bottle. At the moment, the telescopic driving mechanism 4 retracts to a position, the clamping jaw body 3 is lifted upwards, the lower part 11 of the shell 2 extrudes the horn mouth 5 of the clamping jaw body 3, and the horn mouth 5 contracts due to the existence of the notch 6 on the horn mouth 5, so that the bottle cap of the sample injection bottle is clamped.

When the movement is to be realized, the movable mechanism is only required to move to a corresponding position, at the moment, the telescopic driving mechanism 4 is controlled to extend downwards to one position, the clamping jaw body 3 is ejected downwards, the horn mouth 5 returns to the original position, the guide post 15 ejects the bottle cap of the sample injection bottle under the action of the elastic force of the spring 17, and the sample injection bottle is put down.

When the cover opening action is to be realized, the sample feeding bottle is fixed, the rotary driving mechanism 18 drives the cover opening and closing mechanism 1 to rotate anticlockwise, and meanwhile, the lifting mechanism 19 lifts the box cover opening mechanism to complete the action of opening the threaded bottle cover. For the clamping type sample injection bottle, the bottle body is lifted through the lifting mechanism 19 after being fixed. After the sampling process is finished, the cover opening and closing mechanism 1 is moved to a designated position, the telescopic driving mechanism 4 is controlled to extend out of one position downwards, the clamping jaw body 3 is ejected downwards, the bell mouth 5 returns to the original position, and the guide pillar 15 ejects the bottle cover of the sampling bottle under the action of the elastic force of the spring 17.

When the cap closing action is to be realized, the cap of the sampling bottle is grabbed and moved to the upper part of the bottle body, after the bottle body is fixed, the rotary driving mechanism 18 drives the cap opening and closing mechanism 1 to rotate clockwise, and meanwhile, the lifting mechanism 19 presses the cap opening and closing mechanism downwards to complete the action of closing the threaded bottle cap. For the clamping type sample injection bottle, the clamping type sample injection bottle can be completed only by fixing the bottle body and then pressing down the bottle body through the lifting mechanism 19. After the sampling is finished, the telescopic driving mechanism 4 is controlled to extend out of one position downwards, the clamping jaw body 3 is ejected downwards, the bell mouth 5 returns to the original position, and the guide post 15 ejects the sampling bottle under the action of the elastic force of the spring 17.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a sample bottle snatchs mechanism of opening and shutting, its characterized in that: including cylindrical casing, upper portion sets up flexible actuating mechanism in the casing, and the lower part sets up the clamping jaw body in the casing, the head of the clamping jaw body is located the casing, and is fixed with flexible actuating mechanism's telescopic shaft, clamping jaw body cavity, lower part form the horn mouth, are located the casing below outside, and it has a plurality of openings to open on the horn mouth, the bore of horn mouth is greater than the diameter of casing.

2. The sample bottle grabbing cover opening and closing mechanism according to claim 1 is characterized in that: the lower extreme position of horn mouth sets up protruding ring, the junction of protruding ring is the arc limit, the inboard side fillet of casing lower extreme.

3. The sample bottle grabbing cover opening and closing mechanism according to claim 1 is characterized in that: the shell comprises an upper part and a lower part which are connected through a connecting sleeve, and the connecting part is positioned at the upper end of the clamping jaw body.

4. The sampling bottle grabbing cover opening and closing mechanism according to claim 3 is characterized in that: the top of the shell is also provided with a lead hole.

5. The sampling bottle grabbing cover opening and closing mechanism according to claim 3 is characterized in that: the clamp comprises a clamp claw body and is characterized in that a buffer column is fixedly arranged in the clamp claw body, a guide column is arranged in the buffer column through a sliding bearing, the lower end of the guide column is a top plate, and a thrust spring is arranged between the top plate and the buffer column.

6. The sampling bottle grabbing cover opening and closing mechanism according to claim 5 is characterized in that: the inside cavity that is of buffer column, the guide pillar stretches into the buffer column inside, fixes a position both at different heights through the locating pin.

7. The sampling bottle grabbing cover opening and closing mechanism according to any one of claims 1 to 6, characterized in that: and the included angle of the generatrix of the bell mouth is 30-60 degrees.

8. The sampling bottle grabbing cover opening and closing mechanism according to claim 7 is characterized in that: the number of the openings on the horn mouth is 3 to 6, and the width of the opening is 0.5 to 1.0 mm.

9. The sampling bottle grabbing cover opening and closing mechanism according to any one of claims 1 to 6, characterized in that: the top of the shell is arranged on the mounting plate through a bearing, a rotary driving mechanism is arranged on the mounting plate, and the rotary driving mechanism drives the shell to rotate.

10. The sample bottle grabbing cover opening and closing mechanism according to claim 9 is characterized in that: the mounting plate is arranged on the lifting mechanism.