Self-adaptive clamping device for test tube position deviation

Abstract

The utility model relates to the technical field of medical inspection equipment, in particular to a test tube position offset self-adaptive clamping device which comprises a test tube clamping assembly, a floating clamping assembly and a driving mechanism. The test tube clamping assembly comprises a first synchronous belt clamping piece, a second synchronous belt clamping piece, a synchronous belt, a synchronous wheel, a base plate, a guide rail, a guide rail right sliding block, a right clamping plate, a right clamping arm, a right clamping block, a left clamping arm and a guide rail left sliding block. The V-shaped notch of the clamping floating block is tangent to the arc surface of the test tube, the notch surface of the left clamping block can be attached to the outer circle of the test tube, concentric clamping is achieved, the problem that the test tube cannot be clamped in place due to errors and test tube displacement deviation in the production manufacturing, production assembling and debugging processes can be effectively solved, the production manufacturing precision is reduced, and the production efficiency is improved. And the assembly requirement is high.

Description

Technical Field

[0001] This utility model relates to the field of medical testing equipment technology, and in particular to a device for adaptive clamping of test tubes with offset position. Background Technology

[0002] In medical testing, it is often necessary to shake test tube samples placed on test tube racks, identify test tube types, and scan barcodes. In this embodiment of the invention, test tubes on the test tube rack need to be picked up, moved to a designated point for shaking, rotated and identified for barcodes and test tube types, and then placed back on the test tube rack.

[0003] Since the test tube rack and test tube clamp move in opposite directions, the test tube clamp and the test tube rack that holds the test tubes are mostly separate structures. This can lead to a misalignment between the position of the test tube clamp and the position of the test tube being clamped during manufacturing, assembly, and debugging. If there is a deviation between the position of the test tube clamp and the position of the test tube being clamped when clamping the test tube, the test tube will shift from its original position, posing a risk of not being able to be clamped, which in turn affects the next steps such as shaking and test tube type identification. Utility Model Content

[0004] The purpose of this invention is to provide a device for adaptive clamping of test tubes with offset position, which aims to solve the problem that the test tube clamp and test tube rack are offset in manufacturing, assembly and debugging, which may lead to the risk of not being able to clamp the tubes and affect the subsequent shaking and test tube type identification.

[0005] To achieve the above objectives, this utility model provides a device for adaptive clamping of test tubes with offset position, including a test tube clamping assembly, a floating clamping assembly, and a driving mechanism. The floating clamping assembly is mounted on the bottom of the test tube clamping assembly, and the driving mechanism is mounted on one side of the test tube clamping assembly. The test tube clamping assembly includes a synchronous belt, a synchronous wheel, a base plate, a guide rail, a right slider of the guide rail, a right clamping plate, a right clamping arm, a right clamping block, a left clamping arm, a left slider of the guide rail, a left clamping plate, and an optocoupler. The guide rail is fixedly connected to the base plate and located on one side of the base plate. The right slider of the guide rail is slidably connected to the guide rail and located on one side of the guide rail. The right clamping plate is fixedly connected to the right slider of the guide rail and located on the side of the guide rail away from the guide rail. The right clamping arm is fixedly connected to the right clamping plate and located on the right clamping plate. The right clamping block is fixedly connected to the right clamping arm and located on the side of the right clamping arm away from the right clamping plate. The left slider of the guide rail is slidably connected to the guide rail and located on one side of the guide rail. The left clamping plate is fixedly connected to the left slider of the guide rail and located on the side of the left slider of the guide rail away from the guide rail. The left clamping arm is fixedly connected to the left clamping plate and located on the side of the left clamping plate away from the left slider of the guide rail. The optocoupler is mounted on one side of the substrate. The synchronous pulley is mounted on the side of the substrate close to the guide rail. The synchronous belt is sleeved on the outside of the synchronous pulley. The floating clamping assembly includes a clamping floating block, a left clamping block, and a screw. The clamping floating block is mounted on one side of the left clamping block. The screw is threadedly connected to the clamping floating block and passes through the left clamping arm.

[0006] The optocoupler includes an optocoupler body and a connector. The connector is fixedly connected to the substrate and located on one side of the substrate. The optocoupler body is detachably connected to the connector and located on one side of the connector.

[0007] The driving mechanism includes a motor and a locking nut. The motor is fixedly connected to the base plate and located on the top of the base plate. The locking nut is threadedly connected to the telescopic screw of the motor and passes through the left clamping plate.

[0008] The test tube clamping assembly further includes a first synchronous belt clamp and a second synchronous belt clamp. The first synchronous belt clamp is fixedly connected to the left clamping plate and is located on one side of the left clamping plate. The second synchronous belt clamp is fixedly connected to the right clamping plate and is located on one side of the right clamping plate.

[0009] The motor is driven by the algorithm and control program logic in the controller, which enables the clamping speed and force of the right clamping arm and the left clamping arm to be rapid and stable.

[0010] This invention relates to a device for adaptive clamping of test tubes with adjustable position offset. The base plate provides support and mounting conditions for the remaining components. The right clamping plate connects the right slider of the guide rail and the right clamping arm. Similarly, the left clamping plate connects the left slider of the guide rail and the left clamping arm. By sliding the right and left sliders on the guide rail, the left and right clamping arms can open synchronously in opposite directions or close synchronously towards each other. Specifically, the driving mechanism drives the left clamping plate to pull the synchronous belt, causing the right and left clamping arms to move in tandem, thus achieving the synchronous opening or closing of the left and right clamping arms, thereby enabling the clamping and releasing of test tubes. The opening and closing speed and distance of the left and right clamping arms are determined by the initial position detection of the optocoupler and the left clamping plate. Triggering is achieved by detecting high and low levels generated by the optocoupler, which, in conjunction with the driving mechanism, enables… The device operates at a certain number of steps and speed, allowing for adjustable clamping force to accommodate different test tube sizes. The floating clamping block is embedded or engaged in the circular hole of the left clamping block. The pin holes on both sides of the floating block are smaller than the circular hole of the left clamping block. Therefore, the floating clamping block can move left and right, and sway up and down within the left clamping block, achieving swaying at certain angles in the X, Y, and Z axes in three-dimensional space. Specifically, during the clamping and tightening of the test tube, the floating clamping block can float left and right, and up and down, making the V-shaped groove of the floating clamping block tangent to the arc surface of the test tube. This allows the groove surface of the left clamping block to fit against the outer circle of the test tube, achieving concentric clamping. This effectively solves the problem of incomplete test tube clamping caused by errors during manufacturing, assembly, and debugging, as well as test tube displacement deviation. It reduces manufacturing precision requirements and meets high assembly demands, effectively improving assembly efficiency and reducing manufacturing and manual assembly costs. Furthermore, it enhances the overall reliability of the instrument during operation. This technology enhances the added value and competitiveness of enterprises and instruments, and solves the problem of positional misalignment between test tube clamps and test tube racks during manufacturing, assembly, and debugging, which could lead to the risk of not being able to clamp the tubes and affect subsequent mixing and test tube type identification. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a test tube position offset adaptive clamping device provided by this utility model.

[0013] Figure 2 This is an exploded view of the floating support block component.

[0014] Figure 3 The floating clamping component's front-to-back and left-to-right angles change.

[0015] Figure 4 This is a schematic diagram of the test tube clamp assembly in the loosened test tube state.

[0016] Figure 5 This is a schematic diagram of the test tube clamping assembly in the state of clamping the test tube.

[0017] Figure 6 This is a schematic diagram showing how the floating clamping component adaptively slides to the position of the center of the circle with the same arc as the test tube to clamp the test tube.

[0018] Figure 7 This is a schematic diagram showing how the slotted surface of the floating clamping component fits against the outer circle of the test tube to achieve concentric clamping.

[0019] In the diagram: 1-Test tube clamping assembly, 2-Floating clamping assembly, 3-Drive mechanism, 4-Synchronous belt, 5-Synchronous pulley, 6-Base plate, 7-Guide rail, 8-Right slider of guide rail, 9-Right clamping plate, 10-Right clamping arm, 11-Right clamping block, 12-Left clamping arm, 13-Left slider of guide rail, 14-Left clamping plate, 15-Optical coupler, 16-Optical coupler body, 17-Connector, 18-Motor, 19-Locking nut, 20-First synchronous belt clamp, 21-Second synchronous belt clamp, 22-Clamping floating block, 23-Left clamping block, 24-Screw. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1 to 7This utility model provides a device for adaptive clamping of test tubes with offset position, including a test tube clamping assembly 1, a floating clamping assembly 2, and a driving mechanism 3. The floating clamping assembly 2 is mounted on the bottom of the test tube clamping assembly 1, and the driving mechanism 3 is mounted on one side of the test tube clamping assembly 1. The test tube clamping assembly 1 includes a synchronous belt 4, a synchronous wheel 5, a base plate 6, a guide rail 7, a right slider 8, a right clamping plate 9, a right clamping arm 10, a right clamping block 11, a left clamping arm 12, a left slider 13, a left clamping plate 14, and an optocoupler 15. The guide rail 7 is fixedly connected to the base plate 6 and located on one side of the base plate 6. The right slider 8 is slidably connected to the guide rail 7 and located on one side of the guide rail 7. The right clamping plate 9 is fixedly connected to the right slider 8 and located on the side of the right slider 8 away from the guide rail 7. The right clamping arm 10 is fixedly connected to the right clamping plate 9 and located on the side of the right clamping plate 9 away from the right slider 8. On one side of the 8th floor, the right clamping block 11 is fixedly connected to the right clamping arm 10 and is located on the side of the right clamping arm 10 away from the right clamping plate 9. The left slider 13 of the guide rail is slidably connected to the guide rail 7 and is located on one side of the guide rail 7. The left clamping plate 14 is fixedly connected to the left slider 13 of the guide rail and is located on the side of the left slider 13 of the guide rail away from the guide rail 7. The left clamping arm 12 is fixedly connected to the left clamping plate 14 and is located on the side of the left clamping plate 14 away from the left slider 13 of the guide rail. The optocoupler 15 is assembled on one side of the substrate 6. The synchronous wheel 5 is assembled on the side of the substrate 6 near the guide rail 7. The synchronous belt 4 is sleeved on the outside of the synchronous wheel 5. The floating clamping assembly 2 includes a clamping floating block 22, a left clamping block 23 and a screw 24. The clamping floating block 22 is assembled on one side of the left clamping block 23. The screw 24 is threadedly connected to the clamping floating block 22 and passes through the left clamping arm 12.

[0022] In this embodiment of the invention, the base plate 6 provides support and mounting conditions for the remaining components. The right clamping plate 9 connects the right slider 8 of the guide rail and the right clamping arm 10. Similarly, the left clamping plate 14 connects the left slider 13 of the guide rail and the left clamping arm 12. By sliding the right slider 8 and the left slider 13 on the guide rail 7, the left clamping arm 12 and the right clamping arm 10 can open synchronously in opposite directions or close synchronously towards each other. Specifically, this is achieved through the motor of the drive mechanism 3. The telescopic screw on 18 moves back and forth to drive the left clamping plate 14 to pull the synchronous belt 4, causing the right clamping arm 10 to move in conjunction with the left clamping arm 12. This enables the left clamping arm 12 and the right clamping arm 10 to open synchronously in opposite directions or close synchronously towards each other, thereby realizing the function of clamping and releasing test tubes. The opening and closing speed and distance of the left clamping arm 12 and the right clamping arm 10 are determined by the initial position detection of the optocoupler 15 and the left clamping plate 14, and the high and low levels generated by the optocoupler 15 are used for detection. Triggered by a test, the drive mechanism 3 operates at a certain number of steps and speed, allowing for adjustable clamping force to accommodate different test tube sizes. The clamping floating block 22 is embedded or fastened into the circular hole of the left clamping block 23. The pin holes on both sides of the floating block 22 are smaller than the circular hole of the left clamping block 23. Therefore, the clamping floating block 22 can move left and right, and sway up and down within the left clamping block 23, and can also sway at certain angles in the X, Y, and Z axes of three-dimensional space. Specifically, the clamping floating block 22 clamps and tightens the test tube. During the process, the device can float left and right, up and down, so that the V-shaped groove of the clamping floating block 22 is tangent to the arc surface of the test tube. This allows the groove surface of the left clamping block 23 to fit against the outer circle of the test tube, achieving concentric clamping. This effectively solves the problem of incomplete clamping of test tubes caused by errors in manufacturing, assembly, and debugging, as well as test tube displacement deviation. It reduces the need for manufacturing precision and high assembly requirements, effectively improves assembly efficiency, and reduces manufacturing and manual assembly costs. Furthermore, it improves the overall reliability of the instrument during operation. This increases the added value of the enterprise and the instrument, making it more competitive. It solves the problem of positional misalignment between the test tube clamp and the test tube rack during manufacturing, assembly, and debugging, which could lead to incomplete clamping and affect subsequent shaking and test tube type identification.

[0023] Furthermore, the optocoupler 15 includes an optocoupler body 16 and a connector 17. The connector 17 is fixedly connected to the substrate 6 and is located on one side of the substrate 6. The optocoupler body 16 is detachably connected to the connector 17 and is located on one side of the connector 17.

[0024] In this embodiment of the utility model, the connector 17 is assembled on the substrate 6 to provide an installation location for the optocoupler body 16. The initial position is determined by the optocoupler body 16 and the left clamping plate 14. The optocoupler body 16 generates a high or low level to detect the trigger. In conjunction with the drive mechanism 3, a certain number of steps and speed are achieved. The clamping force can be adapted to the size of the test tube to protect the test tube from being crushed.

[0025] Furthermore, the drive mechanism 3 includes a motor 18 and a locking nut 19. The motor 18 is fixedly connected to the base plate 6 and is located on the top of the base plate 6. The locking nut 19 is threadedly connected to the telescopic screw of the motor 18 and passes through the left clamping plate 14.

[0026] In this embodiment of the utility model, the motor 18 is mounted on the base plate 6. The motor 18 has a telescopic screw. The left clamping plate 14 and the telescopic screw of the motor 18 are fixed by the locking nut 19. After the motor 18 is powered on, the telescopic screw can move back and forth, thereby enabling the left clamping plate 14 to move back and forth. Under the action of the synchronous belt 4, the right clamping plate 9 also moves in the opposite direction to the left clamping plate 14.

[0027] Furthermore, the test tube clamping assembly 1 also includes a first synchronous belt clamp 20 and a second synchronous belt clamp 21. The first synchronous belt clamp 20 is fixedly connected to the left clamping plate 14 and is located on one side of the left clamping plate 14. The second synchronous belt clamp 21 is fixedly connected to the right clamping plate 9 and is located on one side of the right clamping plate 9.

[0028] In this embodiment of the utility model, the upper end of the timing belt 4 is pressed down by the second timing belt clamp 21 and locked with the right clamping plate 9. Similarly, the lower end of the timing belt 4 is pressed down by the first timing belt clamp 20 and locked with the left clamping plate 14. This prevents the timing belt 4 from falling off the timing pulley 5, while allowing the left clamping plate 14 to pull the timing belt 4 to move, thereby causing the right clamping plate 9 to run in the opposite direction to the left clamping plate 14.

[0029] To better understand this technical solution, the following embodiments are provided for further explanation:

[0030] The clamping and releasing of the entire system is determined by the operation of the motor 18. The motor 18 is controlled by a controller algorithm and program to achieve a certain number of steps and speed. When clamping test tubes, since there are many types and varying diameters of test tubes, the motor 18 can detect a certain clamping force through feedback from the controller at a certain frequency and step count. Once a certain clamping force is detected, the motor 18 can stop moving, preventing further clamping and protecting the test tube from being crushed. Figure 4 To loosen the test tube, Figure 5 The test tube is clamped in place.

[0031] Causes of deviation during clamping and the principle behind how this structure can solve the problem:

[0032] When clamping test tubes on a test tube rack, during assembly and debugging, due to a combination of factors such as machining errors, assembly errors, and debugging errors, it is difficult to achieve theoretically parallel alignment between the left clamping arm 12 and the right clamping arm 10. This can result in inconsistencies in the vertical and horizontal positions of the left clamping block 23 and the right clamping block 11. The arc-shaped clamps on the left clamping block 23 and the right clamping block 11 may not be at the center of the clamp. However, because the floating block can achieve micro-movements at any angle in space, when the left clamping block 23 and the right clamping block 11 are closed, the floating clamping assembly 2 will adaptively slide to a position with the same arc center as the test tube, thus clamping the test tube. Figure 6 As shown.

[0033] Another major type of deviation is that the test tube is not in the designated clamping position, resulting in a misalignment. In most medical devices, test tubes are placed on test tube racks, and a motion mechanism moves the racks to move the test tubes. During this movement, the position of the test tube rack is affected by factors such as program control, frictional resistance, and processing and assembly errors, requiring highly precise positioning mechanisms and program control monitoring feedback. This process incurs significant processing and assembly costs. When the test tube deviates, the floating clamping block 22, during the clamping and tightening process, can float left and right, up and down. Its V-shaped groove is tangent to the arc surface of the test tube, allowing the groove surface of the floating clamping component 2 to conform to the outer circumference of the test tube, achieving concentric clamping. Figure 7 As shown.

[0034] The above-disclosed embodiments are merely preferred embodiments of the test tube position offset adaptive clamping device of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention still fall within the scope of the present invention.

Claims

1. A device for adaptive clamping of test tubes with position deviation, characterized in that it comprises a test tube clamping assembly, a floating clamping assembly and a driving mechanism, the floating clamping assembly is assembled at the bottom of the test tube clamping assembly, and the driving mechanism is assembled at one side of the test tube clamping assembly.

2. The device for adaptive clamping of test tubes with position deviation according to claim 1, characterized in that the floating clamping assembly comprises a clamping floating block, a left clamping block and a screw, the clamping floating block is assembled at one side of the left clamping block, and the screw is threadedly connected with the clamping floating block and penetrates through the left clamping arm.

3. The device for adaptive clamping of test tubes with position deviation according to claim 1, characterized in that the driving mechanism comprises a motor and a locking nut, the motor is fixedly connected with the base plate and located at the top of the base plate, and the locking nut is threadedly connected with the telescopic screw rod of the motor and penetrates through the left clamping plate.

4. The device for adaptive clamping of test tubes with position deviation according to claim 1, characterized in that the test tube clamping assembly further comprises a first synchronous belt clamping piece and a second synchronous belt clamping piece, the first synchronous belt clamping piece is fixedly connected with the left clamping plate and located at one side of the left clamping plate, and the second synchronous belt clamping piece is fixedly connected with the right clamping plate and located at one side of the right clamping plate.

5. The device for adaptive clamping of test tubes with position deviation according to claim 3, characterized in that the motor is driven based on the algorithm and control program logic in the controller, so that the clamping speed and strength of the right clamping arm and the left clamping arm are rapid and stable. ​ ​ ​ ​ ​ ​ ​

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