Centrifugal tube carrying mechanism

Abstract

The utility model discloses a centrifugal tube carrying mechanism which comprises a pair of fixed connecting plates, a lifting connecting mechanism and a multi-degree-of-freedom negative pressure carrying mechanism. The pair of multi-degree-of-freedom negative pressure carrying mechanisms is fixedly assembled on one side of the fixed connecting plate, each multi-degree-of-freedom negative pressure carrying mechanism comprises a pair of blade linear motors, the sides, close to the fixed connecting plate, of the blade linear motors are both in transmission connection with driving connecting plates, and cushion blocks are fixedly connected to the lower portions of the driving connecting plates; a corner plate is hinged to one side of the cushion block, and a pair of negative pressure carrying suction cups is fixedly installed on the cushion block. According to the centrifugal tube carrying mechanism disclosed by the utility model, the blade linear motor is adopted to carry out lifting control on the negative pressure carrying suction cup, so that the centrifugal tube carrying mechanism is relatively compact in structure, and the occupied space of the centrifugal tube carrying mechanism is reduced; and movement control is conducted on the negative-pressure carrying suction cup through the angle adjusting plate, the carrying freedom degree of the negative-pressure carrying suction cup is improved, and the actual application effect of the centrifugal tube carrying mechanism is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifuge tube handling mechanisms, and particularly relates to a centrifuge tube handling mechanism. Background Art

[0002] Centrifuge tubes are a type of commonly used experimental tool for separating or precipitating different components of a mixed liquid. Generally, they are composed of a cylindrical sample chamber and a conical collection chamber. The mixed liquid in the cylindrical sample chamber rotates under the action of a centrifuge, and different components in the mixed liquid precipitate into the conical collection chamber under the action of centrifugal force.

[0003] With the continuous development of automation technology, a centrifuge tube handling mechanism, as a device for automatically handling centrifuge tubes, is assembled on a centrifuge to perform automatic handling and centrifugation of centrifuge tubes. Currently, the commonly used centrifuge tube handling mechanism mainly consists of a movement control mechanism, a negative pressure adsorption handling mechanism, and a control system. When in use, a negative pressure handling suction cup is used to perform negative pressure adsorption on the centrifuge tube through a servo control mechanism, and the centrifuge tube is handled by moving the negative pressure handling suction cup.

[0004] In the prior art, the movement control mechanism of the centrifuge tube handling mechanism mainly uses a servo motor control method to perform horizontal and lifting sliding of the negative pressure handling suction cup. When using a servo motor to control the movement of the negative pressure handling suction cup, there are problems such as a complex structure, a large volume, and poor handling freedom of the centrifuge tube handling mechanism, resulting in a poor actual application effect of the centrifuge tube handling mechanism.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a centrifuge tube handling mechanism.

[0006] The information disclosed in this background art section is only intended to enhance the overall understanding of the present utility model and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a centrifuge tube handling mechanism, which can simplify the structure of the centrifuge tube handling mechanism, make the centrifuge tube handling mechanism structure compact, and improve the handling freedom of the centrifuge tube handling mechanism.

[0008] To achieve the above purpose, a specific embodiment of the present utility model provides a centrifuge tube handling mechanism, including: a pair of fixed connecting plates, a pair of lifting connecting mechanisms, and a pair of multi-degree-of-freedom negative pressure handling mechanisms.

[0009] A pair of lifting connection mechanisms are fixedly assembled on one side of the fixed connection plate, and the lifting connection mechanism includes an assembly fixing block, and the assembly fixing block is fixedly assembled on the side of the fixed connection plate. The side of the assembly fixing block away from the fixed connection plate is fixedly connected to a lifting thread block, and the lifting thread block is internally threaded with a lead screw.

[0010] A pair of the multi-degree-of-freedom negative pressure conveying mechanisms are fixedly assembled on one side of the fixed connecting plate, and the multi-degree-of-freedom negative pressure conveying mechanisms include a pair of blade linear motors, and the blade linear motors are fixedly assembled on the side of the fixed connecting plate away from the assembly fixing block. A pair of blade linear motors are transmission-connected to a driving connecting plate on one side close to the fixed connecting plate, and a pad is fixedly connected to the bottom of the driving connecting plate, and a corner plate is hinged on one side of the pad, and a pair of negative pressure conveying suction cups are fixedly installed on the pad, and a guide pulley is hinged on the side of the corner plate away from the pad, and an angle adjustment plate is slidably assembled on the outer side of the guide pulley, and the angle adjustment plate is fixedly connected to the side of the fixed connecting plate.

[0011] In one or more embodiments of the utility model, a fixing frame is slidably mounted on the outer side of the lifting thread block, and the lead screw is rotatably connected to the fixing frame. The fixing frame serves as an assembly limit for the lead screw. At the same time, the fixing frame can serve as a sliding guide for the lifting thread block.

[0012] In one or more embodiments of the utility model, a servo motor is fixedly mounted on the top of the fixed frame, and the output shaft of the servo motor is connected to the lead screw. The servo motor provides power, and the lead screw is driven to rotate by controlling the operation of the servo motor, so as to control the lifting and lowering movement state of the lifting thread block.

[0013] In one or more embodiments of the utility model, a motor assembly frame is fixedly mounted on the side of the blade linear motor away from the fixed connecting plate, and the motor assembly frame is fixedly connected to the fixed connecting plate. The motor assembly frame plays a role of assembling and fixing multiple blade linear motors.

[0014] In one or more embodiments of the utility model, the motor assembly frame is composed of a pair of side assembly plates, a pair of motor fixing blocks and a pair of air guide fixing blocks. The pair of side assembly plates are respectively fixedly assembled on the opposite sides of a pair of fixed connecting plates. The pair of motor fixing blocks and air guide fixing blocks are both fixedly assembled between the pair of side assembly plates, and the pair of motor fixing blocks and air guide fixing blocks are both fixedly connected to the blade linear motor. The pair of side assembly plates are used to assemble and fix the pair of motor fixing blocks and the air guide fixing blocks. The blade linear motor is assembled and fixed by a pair of motor fixing blocks and the air guide fixing blocks.

[0015] In one or more embodiments of the present utility model, multiple groups of connecting air nozzles are fixedly assembled on each of the pair of air guiding and fixing blocks, and the connecting air nozzles are arranged in cooperation with the negative pressure handling suction cups. This facilitates connecting and conducting the negative pressure handling suction cups through the connecting air nozzles, thereby facilitating the negative pressure adsorption state of the negative pressure handling suction cups.

[0016] In one or more embodiments of the present utility model, a linear slider is fixedly connected to the side of the driving connecting plate away from the blade linear motor, and a linear slide rail is slidably assembled on one side of the linear slider. The mutual cooperation of the linear slider and the linear slide rail plays a role in limiting the lifting and sliding of the driving connecting plate.

[0017] In one or more embodiments of the present utility model, an assembly cushion block is fixedly connected between the linear slide rail and the fixed connecting plate. The assembly cushion block plays a role in connecting and fixing the linear slide rail and the fixed connecting plate.

[0018] In one or more embodiments of the present utility model, a guiding chute is formed on the side of the angle adjusting plate away from the fixed connecting plate, and the guiding chute is arranged in cooperation with a guiding pulley. This facilitates adjusting and controlling the negative pressure adsorption and handling angle of the negative pressure handling suction cup through the mutual cooperation of the guiding pulley and the guiding chute.

[0019] In one or more embodiments of the present utility model, the guiding chute is composed of a vertical guiding chute and an inclined guiding chute, and the inclined guiding chute is arranged on the side of the angle adjusting plate away from the blade linear motor. The mutual cooperation of the vertical guiding chute and the inclined guiding chute guides the movement of the negative pressure handling suction cup, improving the negative pressure handling freedom of the negative pressure handling suction cup.

[0020] Compared with the prior art, the centrifuge tube handling mechanism disclosed in the present utility model simplifies the structure of the centrifuge tube handling mechanism by using a blade linear motor to control the lifting of the negative pressure handling suction cup, making the structure of the centrifuge tube handling mechanism relatively compact and reducing the space occupied by the centrifuge tube handling mechanism;

[0021] By controlling the movement of the negative pressure handling suction cup through the angle adjusting plate, the handling freedom of the negative pressure handling suction cup is improved, and the actual application effect of the centrifuge tube handling mechanism is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 The perspective view of the centrifuge tube handling mechanism in an embodiment of the present utility model;

[0024] Figure 2 The side sectional view of the centrifuge tube handling mechanism in an embodiment of the present utility model;

[0025] Figure 3 It is Figure 2 The structural schematic diagram of the position A in

[0026] Figure 4 It is Figure 2 The structural schematic diagram of the position B in

[0027] Figure 5 The side view of the centrifuge tube handling mechanism in an embodiment of the present utility model;

[0028] Figure 6 It is Figure 5 The structural schematic diagram of the position C in

[0029] Figure 7 The second perspective view of the centrifuge tube handling mechanism in an embodiment of the present utility model;

[0030] Figure 8 The third perspective view of the centrifuge tube handling mechanism in an embodiment of the present utility model.

[0031] Main reference numeral description:

[0032] 1 - Fixed connection plate, 2 - Lifting connection mechanism, 201 - Assembly fixing block, 202 - Lifting thread block, 203 - Lead screw, 204 - Fixed frame, 205 - Servo motor, 3 - Multi - degree - of - freedom negative - pressure handling mechanism, 301 - Blade linear motor, 302 - Driving connection plate, 303 - Spacer block, 304 - Corner plate, 305 - Negative - pressure handling suction cup, 306 - Guide pulley, 307 - Angle adjustment plate, 308 - Motor assembly frame, 3081 - Side assembly plate, 3082 - Motor fixing block, 3083 - Air - guiding fixing block, 309 - Connecting air nozzle, 310 - Linear slider, 311 - Linear slide rail, 312 - Assembly spacer block. Detailed implementation manners

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] AsFigures 1 to 8 As shown in the figure, the centrifuge tube handling mechanism in an embodiment of the present utility model includes: a pair of fixed connection plates 1, a pair of lifting connection mechanisms 2, and a pair of multi-degree-of-freedom negative pressure handling mechanisms 3.

[0035] As Figures 1 to 3 shown in the figure, a pair of lifting connection mechanisms 2 are fixedly assembled on one side of the fixed connection plate 1. The lifting connection mechanism 2 plays a role in lifting and controlling the fixed connection plate 1. The lifting connection mechanism 2 includes an assembly fixing block 201, and the assembly fixing block 201 is fixedly assembled on the side surface of the fixed connection plate 1. The assembly fixing block 201 plays a role in assembling and fixing and lifting control of the fixed connection plate 1.

[0036] As Figures 2 to 3 shown in the figure, a lifting thread block 202 is fixedly connected to the side of the assembly fixing block 201 away from the fixed connection plate 1. The lifting thread block 202 plays a role in supporting and fixing and moving control of the assembly fixing block 201. A lead screw 203 is threadedly connected to the lifting thread block 202. The lead screw 203 plays a role in thread limiting and lifting control of the lifting thread block 202.

[0037] As Figures 1 to 3 shown in the figure, a fixed frame 204 is slidably assembled on the outside of the lifting thread block 202, and the lead screw 203 is rotatably connected to the fixed frame 204. The fixed frame 204 plays a role in assembling and limiting the lead screw 203. At the same time, the fixed frame 204 can play a role in sliding guiding for the lifting thread block 202.

[0038] As Figures 1 to 3 shown in the figure, a servo motor 205 is fixedly assembled above the fixed frame 204, and the output shaft of the servo motor 205 is in transmission connection with the lead screw 203. The servo motor 205 plays a role in providing power. By controlling the operation of the servo motor 205, the lead screw 203 is rotationally driven, so as to facilitate controlling the lifting and moving state of the lifting thread block 202.

[0039] As Figure 1 shown in the figure, a pair of multi-degree-of-freedom negative pressure handling mechanisms 3 are fixedly assembled on one side of the fixed connection plate 1. The multi-degree-of-freedom negative pressure handling mechanism 3 includes a pair of blade linear motors 301, and the blade linear motors 301 are fixedly assembled on the side of the fixed connection plate 1 away from the assembly fixing block 201. By controlling the operation of the blade linear motors 301, the lifting and moving and angle adjustment processes of the negative pressure handling suction cup 305 are controlled.

[0040] Among them, both the servo motor 205 and the negative pressure handling suction cup 305 are commercially available and can be directly purchased and used.

[0041] As Figure 1As shown, on the side of the blade linear motor 301 facing away from the fixed connection plate 1, a motor assembly frame 308 is fixedly assembled. The motor assembly frame 308 is fixedly connected to the fixed connection plate 1. The motor assembly frame 308 plays a role in assembling and fixing multiple blade linear motors 301.

[0042] As Figure 1 shown, the motor assembly frame 308 is composed of a pair of side assembly plates 3081, a pair of motor fixing blocks 3082, and a pair of air guide fixing blocks 3083. The pair of side assembly plates 3081 are respectively fixedly assembled on the opposite sides of the pair of fixed connection plates 1. The pair of motor fixing blocks 3082 and the air guide fixing blocks 3083 are both fixedly assembled between the pair of side assembly plates 3081, and the pair of motor fixing blocks 3082 and the air guide fixing blocks 3083 are both fixedly connected to the blade linear motor 301. The pair of side assembly plates 3081 play a role in assembling and fixing the pair of motor fixing blocks 3082 and the air guide fixing blocks 3083. The pair of motor fixing blocks 3082 and the air guide fixing blocks 3083 are used to assemble and fix the blade linear motor 301.

[0043] As Figures 7 to 8 shown, multiple groups of connecting air nozzles 309 are fixedly assembled on each of the pair of air guide fixing blocks 3083. The connecting air nozzles 309 are arranged in cooperation with the negative pressure handling suction cups 305. It is convenient to connect and conduct the negative pressure handling suction cups 305 through the connecting air nozzles 309, so as to facilitate the negative pressure handling suction cups 305 to be in a negative pressure adsorption state.

[0044] As Figures 5 to 6 shown, on the side of a pair of blade linear motors 301 close to the fixed connection plate 1, a driving connection plate 302 is drivingly connected to each. The driving connection plate 302 plays a role in assembling, fixing, and moving control of the spacer block 303.

[0045] As Figures 5 to 6 shown, on the side of the driving connection plate 302 away from the blade linear motor 301, a linear slider 310 is fixedly connected. A linear slide rail 311 is slidably assembled on one side of the linear slider 310. The mutual cooperation of the linear slider 310 and the linear slide rail 311 plays a role in limiting the lifting and sliding of the driving connection plate 302.

[0046] As Figures 5 to 6 shown, an assembly spacer block 312 is fixedly connected between the linear slide rail 311 and the fixed connection plate 1. The assembly spacer block 312 plays a role in connecting and fixing the linear slide rail 311 and the fixed connection plate 1.

[0047] As Figures 5 to 6 shown, a spacer block 303 is fixedly connected below the driving connection plate 302. The spacer block 303 plays a role in assembling and limiting and moving control of the corner plate 304.

[0048] AsFigures 2 to 6 As shown, one side of the spacer block 303 is hinged with a corner plate 304. The corner plate 304 plays a role in assembling and fixing the negative pressure handling suction cup 305. At the same time, the angle of the negative pressure handling suction cup 305 can be adjusted by controlling the angle adjustment of the corner plate 304.

[0049] As Figures 2 to 6 shown, a pair of negative pressure handling suction cups 305 are fixedly installed on the spacer block 303. The centrifuge tube is negatively adsorbed and transported by the negative pressure handling suction cups 305.

[0050] As Figures 2 to 4 shown, a guide pulley 306 is hinged to the side of the corner plate 304 away from the spacer block 303. The angle adjustment of the corner plate 304 is controlled by limiting the movement of the guide pulley 306.

[0051] As Figures 2 to 4 shown, an angle adjustment plate 307 is slidably assembled on the outside of the guide pulley 306, and the angle adjustment plate 307 is fixedly connected to the side surface of the fixed connection plate 1. The angle adjustment plate 307 plays a role in limiting the movement of the guide pulley 306.

[0052] Specifically, a guide chute is drilled on the side of the angle adjustment plate 307 away from the fixed connection plate 1, and the guide chute is arranged in cooperation with the guide pulley 306. It is convenient to adjust and control the negative pressure adsorption and handling angle of the negative pressure handling suction cup 305 through the mutual cooperation of the guide pulley 306 and the guide chute.

[0053] Among them, the guide chute is composed of a vertical guide chute and an inclined guide chute. The inclined guide chute is arranged on the side of the angle adjustment plate 307 away from the blade linear motor 301. The negative pressure handling suction cup 305 is guided and moved through the mutual cooperation of the vertical guide chute and the inclined guide chute, improving the negative pressure handling freedom of the negative pressure handling suction cup 305.

[0054] During specific use, the connecting nozzle 309 and the negative pressure handling suction cup 305 are connected and conducted through an air pipe, and the connecting nozzle 309 is externally connected to a negative pressure air pipe. When it is necessary to transport the centrifuge tube, the operation of the servo motor 205 is controlled to drive the lead screw 203 to rotate. Subsequently, the lifting threaded block 202 drives the assembly fixing block 201 and the fixed connection plate 1 to move up and down under the action of the internal and external threads.

[0055] Meanwhile, the movement state of the driving connecting plate 302 can be controlled by controlling the operation of the blade linear motor 301. By controlling the movement of the driving connecting plate 302, the spacer block 303 drives the corner plate 304 to move. During the movement of the corner plate 304, the guiding pulley 306 moves in the guiding chute on one side of the angle adjusting plate 307 under the action of the corner plate 304. The angle of the corner plate 304 is adjusted by the movement of the guiding pulley 306 in the guiding chute, so as to adjust the angle of the negative pressure handling suction cup 305, thereby improving the range and actual application effect of the negative pressure handling suction cup 305 for adsorbing and handling the centrifuge tube.

[0056] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0057] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Centrifugal tube handling mechanism, characterized in that, include: a pair of fixed connecting plates; A pair of lifting connection mechanisms, fixedly assembled on one side of the fixed connection plate, the lifting connection mechanism comprising an assembly fixing block, the assembly fixing block is fixedly assembled on the side of the fixed connection plate, the side of the assembly fixing block away from the fixed connection plate is fixedly connected with a lifting thread block, and the lifting thread block is internally threaded with a lead screw; A pair of multi-degree-of-freedom negative pressure transport mechanisms are fixedly assembled on one side of the fixed connecting plate, and the multi-degree-of-freedom negative pressure transport mechanisms include a pair of blade linear motors, the blade linear motors are fixedly assembled on the side of the fixed connecting plate away from the assembly fixing block, and a pair of blade linear motors are transmission-connected to a driving connecting plate on one side close to the fixed connecting plate, a pad is fixedly connected to the bottom of the driving connecting plate, a corner plate is hinged on one side of the pad, a pair of negative pressure transport suction cups are fixedly installed on the pad, a guide pulley is hinged on the side of the corner plate away from the pad, an angle adjustment plate is slidably assembled on the outer side of the guide pulley, and the angle adjustment plate is fixedly connected to the side of the fixed connecting plate.

2. The centrifuge tube handling mechanism according to claim 1, wherein A fixing frame is slidably mounted on the outer side of the lifting thread block, and the lead screw is rotatably connected to the fixing frame.

3. The centrifuge tube handling mechanism according to claim 2, wherein, A servo motor is fixedly mounted above the fixing frame, and an output shaft of the servo motor is drivingly connected to a lead screw.

4. The centrifuge tube handling mechanism according to claim 1, wherein A motor assembly frame is fixedly mounted on a side of the blade linear motor away from the fixed connecting plate, and the motor assembly frame is fixedly connected to the fixed connecting plate.

5. The centrifuge tube handling mechanism according to claim 4, wherein, The motor assembly frame consists of a pair of side assembly plates, a pair of motor fixing blocks and a pair of air guide fixing blocks. The pair of side assembly plates are respectively fixedly assembled on the opposite sides of a pair of fixed connecting plates. The pair of motor fixing blocks and the air guide fixing blocks are both fixedly assembled between the pair of side assembly plates, and the pair of motor fixing blocks and the air guide fixing blocks are both fixedly connected to the blade linear motor.

6. The centrifuge tube handling mechanism according to claim 5, characterized in that, A pair of the air guide fixing blocks are fixedly equipped with a plurality of connecting air nozzles, and the connecting air nozzles are arranged in cooperation with the negative pressure transport suction cups.

7. The centrifuge tube handling mechanism according to claim 1, wherein A linear slide block is fixedly connected to one side of the driving connecting plate away from the blade linear motor, and a linear slide rail is slidably mounted on one side of the linear slide block.

8. The centrifuge tube handling mechanism according to claim 7, wherein, An assembly cushion block is fixedly connected between the linear slide rail and the fixed connecting plate.

9. The centrifuge tube handling mechanism according to claim 1, wherein, A guide slot is formed on one side of the angle adjustment plate away from the fixed connection plate, and the guide slot is matched with a guide pulley.

10. The centrifuge tube handling mechanism according to claim 9, wherein, The guide slide groove consists of a vertical guide slide groove and an inclined guide slide groove. The inclined guide slide groove is arranged on a side of the angle adjustment plate away from the blade linear motor.

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