Test tube opening and closing cover integrated machine

Abstract

The application discloses a test tube opening and closing cover integrated machine, which comprises a cross-degree-of-freedom driving part, a first clamping assembly and a Y-direction feeding assembly. The cross-degree-of-freedom driving part is supported on a mounting bottom plate through a stand at both ends. The cross-degree-of-freedom driving part is provided with a second clamping assembly through an L-shaped mounting plate. The cross-degree-of-freedom driving part is used for driving the second clamping assembly to translate in the X-axis direction and the Z-axis direction. The second clamping assembly is used for clamping and fixing a test tube. The first clamping assembly is fixed on one side of the surface of the mounting bottom plate and is used for fixing the test tube transferred out by the second clamping assembly. The Y-direction feeding assembly is fixed on the other side of the surface of the mounting bottom plate. A bearing assembly containing a test tube placing disc is mounted on the driving plate of the Y-direction feeding assembly. The Y-direction feeding assembly is used for driving the bearing assembly to translate in the Y-axis direction. The device can realize automatic opening and closing of the test tube cover and solves the problem that the test tube cover cannot be conveniently opened when the hands of a worker cannot be separated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a test tube opening and closing cover integrated machine. BACKGROUND

[0002] Test tubes are used in many fields such as medical tests. Whether the test tube is used to collect reagents or the reagents in the test tube are detected, the cap of the test tube needs to be removed. After the reagent collection or detection is completed, the cap is screwed on. When working, the staff usually holds the test tube with one hand and the pipette with the other hand, which brings great inconvenience to the opening and closing of the test tube cap.

[0003] The patent document CN212315488U discloses a test tube opening and closing cover device, which comprises a clamping lifting driving part, a clamping rotating driving part connected with the output end of the clamping lifting driving part, and a clamping part comprising a clamping jaw mounting frame, a clamping jaw unit and a push rod lifting driving unit. The clamping jaw mounting frame is connected with the output end of the clamping rotating driving part. The clamping jaw unit comprises m clamping jaw assemblies distributed circumferentially around the rotation center of the clamping jaw mounting frame and a push rod capable of moving up and down. In use, the lifting driving part drives the clamping jaw to move up and down, and the push rod lifting driving unit drives the connecting rod through the push rod to make the clamping arm turn outward at the upper end and inward at the lower end, so as to make the m clamping structures clamp the test tube cap. The clamping rotating driving part makes the threads of the test tube cap disengage from the test tube. However, this invention needs to manually place the test tube in a position to realize the opening and closing cover function. SUMMARY

[0004] The present application aims to provide a test tube opening and closing cover integrated machine to solve the problem that it is difficult to open and close the test tube cap when the staff holds two work objects with both hands.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a test tube opening and closing cover integrated machine for opening and closing the cover of a test tube, comprising: a cross-degree-of-freedom driving part, a first clamping assembly, and a Y-direction feeding assembly.

[0006] The cross-degree-of-freedom driving part is connected and supported by a stand to a mounting base at both ends. A second clamping assembly is installed on the cross-degree-of-freedom driving part. The cross-degree-of-freedom driving part is used to drive the second clamping assembly to translate in the X-axis direction and the Z-axis direction. The second clamping assembly comprises a mounting seat installed on the driving plate of the cross-degree-of-freedom driving part. The bottom edge of the mounting seat is installed with multiple shaped fingers through an L-shaped mounting plate by hand claw elasticity and equidistantly. A shaped finger tightening driving part is arranged in the mounting seat for adjusting the spacing between the shaped fingers. The number of hand claws and shaped fingers is equal to N, and N is a natural number greater than or equal to 4. When the shaped fingers are installed, a finger installation slot can be opened at the bottom of the hand claw, and the shaped finger is inserted into the finger installation slot.

[0007] The first clamping assembly is fixed to one side of the mounting base surface, and is used for fixing the test tube transferred out by the second clamping assembly.

[0008] The Y-direction feeding assembly is fixed to the other side of the mounting base surface, a bearing assembly containing a test tube placing disc is mounted on the driving plate of the Y-direction feeding assembly, and the Y-direction feeding assembly is used for driving the bearing assembly to move in the Y-axis direction.

[0009] According to a further scheme of the present application, the cross-direction free driving part comprises an X-direction feeding assembly and a Z-direction feeding assembly; the X-direction feeding assembly is horizontally fixed between the top portions of the columns, and the Z-direction feeding assembly is vertically fixed on the driving plate of the X-direction feeding assembly.

[0010] According to a further scheme of the present application, the X-direction feeding assembly comprises a base, a lead screw and a third stepping motor, and a nut is mounted on the lead screw.

[0011] The lead screw is mounted in the middle position of the base through a bearing with a seat, one end of the lead screw is connected with the output shaft of the third stepping motor, static guide rails are mounted on the base on the two sides of the lead screw, the static guide rails are slidably connected with the driving plate through sliding blocks, and the driving plate is fixedly connected with the nut.

[0012] According to a further scheme of the present application, the X-direction feeding assembly and the Z-direction feeding assembly are of the same structure, and the base of the Z-direction feeding assembly is vertically fixed on the surface of the driving plate of the X-direction feeding assembly.

[0013] According to a further scheme of the present application, the shaped finger tightening driving part comprises a driving assembly, a traction turntable and a plurality of telescopic springs; the telescopic springs are connected with the hand claw and the mounting seat at two ends.

[0014] The mounting seat is internally provided with a through upper cavity and a lower cavity, the traction turntable is rotatably connected to the bottom wall of the lower cavity, the driving assembly is fixed to the bottom wall of the upper cavity and rotatably abuts against the traction turntable.

[0015] The side wall of the lower cavity is further provided with a plurality of through holes, and the traction turntable is elastically connected with the hand claw through rubber ropes; the rubber ropes correspondingly pass through the through holes and the telescopic springs.

[0016] According to a further scheme of the present application, the driving assembly comprises a fifth stepping motor; the fifth stepping motor is mounted on the bottom wall of the upper cavity through a motor mounting plate, a friction disc is mounted on the output shaft of the fifth stepping motor, a layer of rubber is arranged at the bottom of the friction disc, and the rubber abuts against the traction turntable.

[0017] Regarding the further scheme of the present application; the bearing assembly comprises: a bearing chassis, a long tensioning rope, a short tensioning rope, an inner groove is arranged in the bearing chassis;

[0018] A pair of clamping plates are installed between the two opposite inner walls of the inner groove through damping springs, a draw hook is fixed on the side wall of the bearing chassis away from one of the clamping plates, one end of the long tensioning rope and the short tensioning rope is connected to the draw hook, the other end of the short tensioning rope is connected to the clamping plate close to the draw hook, and the other end of the long tensioning rope is connected to the clamping plate away from the draw hook along the perforation at the bottom of the bearing chassis.

[0019] Regarding the further scheme of the present application; a layer of rubber is also attached to the clamping surface of the shaped finger, which on the one hand increases the friction between the test tube and the shaped finger, and on the other hand, when the shaped finger clamps the test tube, the test tube can be cushioned, thereby maximizing the prevention of damage to the test tube.

[0020] Regarding the further scheme of the present application; the second clamping assembly has the same structure as the first clamping assembly, and the shaped fingers in the two assemblies point in opposite directions.

[0021] Regarding the further scheme of the present application; the Y-direction feeding assembly has the same structure as the X-direction feeding assembly and the Z-direction feeding assembly.

[0022] According to the above technical scheme, the present application has at least the following beneficial effects:

[0023] 1) The device can realize automatic opening and closing of the test tube cover, and the integrated design of opening and closing enhances the practicality of the device.

[0024] 2) A layer of rubber is attached to the surface of the shaped finger, and a plurality of convex points are arranged on the surface of the rubber to increase the friction coefficient, so that the test tube can be clamped with relatively small pressure, and the test tube can be prevented from being crushed.

[0025] 3) The traction turntable is driven by the friction disc, and the distance between the shaped fingers is changed through the rubber rope and the extension spring, so that the test tube can be clamped and unclamped, and the clamping force can be ensured not to crush the test tube.

[0026] 4) By adjusting the position of the friction disc on the output shaft of the No. 5 stepping motor, the pressure between the friction disc and the traction turntable can be changed, thereby meeting the demand for different clamping forces.

[0027] 5) During clamping, the shaped fingers are vertically moved downward to longitudinally clamp the test tube, which can effectively save space compared with the traditional mechanical hand horizontal clamping scheme, and high-density test tube storage of the test tube placing disc (such as a foam disc) is realized.

[0028] 6) By multiple shaped fingers clamping test tube, relative to the traditional two hand jaw mechanical hand clamping test tube, to prevent the test tube deformation caused by uneven force, so that the reagent in the test tube spillage phenomenon occurs in the transport process.

[0029] 7) Buffering effect of damping spring of bearing assembly, effectively avoids the reagent spillage phenomenon caused by vibration in the test tube during movement. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the embodiment;

[0031] Figure 2 It is a structural schematic diagram of the X direction feeding assembly;

[0032] Figure 3 It is a structural schematic diagram of the second clamping assembly;

[0033] Figure 4 It is a sectional view of the second clamping assembly;

[0034] Figure 5 It is a sectional view of the mounting seat;

[0035] Figure 6 It is a structural schematic diagram of the traction turntable;

[0036] Figure 7 It is a structural schematic diagram of the bearing assembly;

[0037] Figure 8 It is a full sectional view of the bearing assembly;

[0038] Among them:

[0039] 1, the first clamping assembly, 2, the column, 3, the X direction feeding assembly, 4, the Z direction feeding assembly, 5, the second clamping assembly, 6, the L-shaped mounting plate, 7, the test tube, 8, the test tube placing disc, 9, the bearing assembly, 10, the mounting bottom plate, 11, the Y direction feeding assembly;

[0040] 31, the base, 32, the static guide rail, 33, the screw, 34, the driving plate, 35, the third stepper motor, 36, the sliding block;

[0041] 50, the ball, 51, the shaped finger, 52, the hand jaw, 53, the mounting seat, 54, the fifth stepper motor, 55, the rubber rope, 56, the motor mounting plate, 57, the friction disc, 58, the extension spring, 59, the traction turntable;

[0042] 52.1, the through hole, 52.2, the finger mounting groove;

[0043] 53.1, the spring mounting blind hole, 53.2, the hand jaw mounting groove, 53.3, the upper cavity, 53.4, the rope hole, 53.5, the lower cavity;

[0044] 57.1, the rubber;

[0045] 59.1 buckle ring;

[0046] 91 bearing chassis, 92 damping spring, 93 front clamping plate, 94 rear clamping plate, 95 long tensioning rope, 96 short tensioning rope, 97 pull hook;

[0047] 91.1 inner groove, 94.1 No. 2 boss, 93.1 No. 1 boss. DETAILED DESCRIPTION

[0048] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0049] As shown in Figures 1 to 8 , in order to solve the problem that it is inconvenient to open the cap of a test tube when a worker holds the test tube with both hands, such a situation is often encountered in experiments, in the face of this situation, the present application provides a test tube cap opening and closing integrated machine, which comprises a first clamping assembly 1, a stand column 2, an X-direction feeding assembly 3, a Z-direction feeding assembly 4, a second clamping assembly 5, a bearing assembly 9, a mounting chassis 10 and a Y-direction feeding assembly 11. The X-direction feeding assembly 3 is installed on the mounting chassis 10 through the stand column 2, and constitutes a gantry type frame of the test tube cap opening and closing integrated machine, the Z-direction feeding assembly 4 is installed on the X-direction feeding assembly 3, the second clamping assembly 5 is installed on the lower end of the Z-direction feeding assembly 4 through an L-shaped mounting plate 6, and the second clamping assembly 5 can move in X-direction and Z-direction under the driving of the X-direction feeding assembly 3 and the Z-direction feeding assembly 4. The Y-direction feeding assembly 11 is installed on one side of the upper surface of the mounting chassis 10, and the first clamping assembly 1 is installed on the other side of the upper surface of the mounting chassis 10. The bearing assembly 9 is fixedly installed on the driving plate of the Y-direction feeding assembly 11, a test tube placing disc 8 is linearly arrayed on the test tube placing disc 8 and is processed with a plurality of test tube placing holes for placing test tubes 7. The test tube placing disc 8 is placed on the bearing assembly 9 and moves in Y-direction together with the bearing assembly 9 under the driving of the Y-direction feeding assembly 11.

[0050] As shown in Figure 2As shown, the X-direction feeding assembly 3 comprises a base 31, static guide rails 32, a screw rod 33, a driving plate 34, a third stepper motor 35, and a sliding block 36. The screw rod 33 is installed in the middle of the base 31 through a bearing, and two static guide rails 32 are installed on the base 31 in parallel and symmetrically on both sides of the screw rod 33. The third stepper motor 35 is installed on the top of the middle of the base 31, and the output shaft of the third stepper motor 35 is connected with the screw rod 33 through a coupling. A nut (not shown in the figure) is installed on the screw rod 33, and the sliding block 36 is installed on the static guide rail 32. The driving plate 34 is installed on the sliding block 36 and is fixed with the nut installed on the screw rod 33. When the third stepper motor 35 rotates, the driving plate 34 is driven to move horizontally along the static guide rail 32 through the screw-nut mechanism. The Z-direction feeding assembly 4 has the same structure as the X-direction feeding assembly 3. The Z-direction feeding assembly 4 is installed on the driving plate 34 of the X-direction feeding assembly 3 through a driving plate, thereby forming a cross-shaped two-degree-of-freedom moving mechanism.

[0051] As shown in Figure 3 and Figure 4 , the second clamping assembly 5 comprises a shaped finger 51, a paw 52, a mounting seat 53, a fifth stepper motor 54, a rubber rope 55, a friction disc 57, an extension spring 58, and a traction turntable 59. The surface of the shaped finger 51 is pasted with a layer of rubber, and the rubber surface is provided with a plurality of convex points to increase the friction coefficient, so as to ensure that the test tube can be clamped with small pressure and avoid crushing the test tube. The paw 52 is provided with a through hole 52.1 for connecting one end of the rubber rope 55, and the bottom surface of the paw 52 is provided with a finger installation groove 52.2 for installing the shaped finger 51. The lower surface of the friction disc 57 is pasted with a layer of rubber 57.1 for adjusting the pressure between the friction disc 57 and the traction turntable 59.

[0052] As shown in Figure 5 , the mounting seat 53 is provided with shaped paw installation grooves 53.2 around the bottom for installing the paw 52. The bottom surface of the paw installation groove 53.2 is sequentially provided with a spring installation blind hole 53.1 and a rope hole 53.4 from outside to inside for installing the extension spring 58 and the rubber rope 55, respectively. The middle part of the mounting seat 53 is provided with an upper cavity 53.3 and a lower cavity 53.5 for installing the fifth stepper motor 54 and the traction turntable 59, respectively.

[0053] As shown in Figure 6 , the traction turntable 59 is provided with a plurality of snap rings 59.1 on the upper surface in a circular array for connecting one end of the rubber rope 55.

[0054] As shown in Figure 4As shown, the fifth stepper motor 54 is installed in the upper cavity 53.3 of the mounting seat 53 through the motor mounting plate 56, the friction disc 57 is installed on the output shaft of the fifth stepper motor 54, the traction turntable 59 is installed on the upper surface of the lower cavity 53.5 of the mounting seat 53 through the ball 50, the friction disc 57 installed on the output shaft of the fifth stepper motor 54 is pressed on the traction turntable 59 with a certain pressure, when the output shaft of the fifth stepper motor 54 rotates, the traction turntable 59 is driven to rotate through the friction disc 57. The four claws 52 are respectively installed in the claw installation groove 53.2 distributed around the bottom of the mounting seat 53, the retractable spring 58 is installed between the claw 52 and the bottom surface of the claw installation groove 53.1, one end of the rubber rope 55 is fixed to the outside of the claw 52, and the other end is installed on the buckle 59.1 of the traction turntable 59 in turn through the through hole 52.1 on the claw 52, the retractable spring 58 and the rope hole 53.4. The output shaft of the fifth stepper motor 54 rotates, drives the traction turntable 59 to rotate through the friction disc 57, under the action of the dragging force of the rubber rope 58, the claws 52 converge to the center, so as to change the distance between the shaped fingers 51 and clamp the test tube; the output shaft of the fifth stepper motor 54 reverses, drives the traction turntable 59 to reverse through the friction disc 57, under the action of the force of the retractable spring 58, the claws 52 spread to the four directions, so as to increase the distance between the shaped fingers 51 and loosen the clamping of the test tube. When the pressure between the friction disc 57 and the traction turntable 59 is certain, the friction between them is certain, so when the dragging force of the rubber rope 55 exceeds a certain value, the friction disc 57 and the traction turntable 59 slip, which ensures that the dragging force of the rubber rope 55 will not exceed a certain value, so as to ensure that the clamping force of the shaped fingers 51 on the test tube will not exceed a certain value, avoiding the test tube being clamped and broken. By adjusting the position of the friction disc 57 on the output shaft of the fifth stepper motor 54, the pressure between the friction disc 57 and the traction turntable 59 can be changed, so as to meet the demand of different clamping force.

[0055] The Y-direction feeding assembly 11 and the X-direction feeding assembly 3 are the same in structure, the first clamping assembly 1 and the second clamping assembly 5 are the same in structure.

[0056] As Figure 7 and Figure 8As shown, the bearing assembly 9 includes a bearing chassis 91, a damping spring 92, a front clamping plate 93, a rear clamping plate 94, a long tensioning rope 95, a short tensioning rope 96 and a pull hook 97. The front clamping plate 93 and the rear clamping plate 94 are respectively installed in the inner groove 91.1 of the bearing chassis 91 through the damping spring 92, the pull hook 97 is located on the outer side of the bearing chassis 91 close to the front clamping plate 93, one end of the short tensioning rope 96 is fixed on a No. 1 boss 93.1 of the front clamping plate 93 through a knot, the other end is fixed on the pull hook 97 through a knot, one end of the long tensioning rope 95 is fixed on a No. 2 boss 94.1 of the rear clamping plate 94 through a knot, passes through a through hole at the bottom of the bearing chassis 91, and the other end is fixed on the pull hook 97 through a knot. When it is needed to place the test tube placing disc 8 in the inner groove 91.1 of the bearing chassis 91, the pull hook 97 is manually pulled, at this time, the front clamping plate 93 and the rear clamping plate 94 move away from each other under the pulling force of the short tensioning rope 96 and the long tensioning rope 95, so as to facilitate the placement of the test tube placing disc 8 in the inner groove 91.1 of the bearing chassis 91, at this time, the pull hook 97 is released, and under the spring force of the damping spring 92, the front clamping plate 93 and the rear clamping plate 94 move towards each other, so as to reliably place the test tube placing disc 8 in the inner groove 91.1 of the bearing chassis 91. Due to the buffering effect of the damping spring 92, the spilling of the reagent in the test tube during the movement of the test tube can be effectively avoided.

[0057] The working process of the embodiment is as follows:

[0058] 1) The Y-direction feeding assembly 11 drives the test tube placing disc 8 to move together with the bearing assembly 9 in the Y direction until the test tube 7 to be uncapped moves below the No. 2 clamping assembly 5.

[0059] 2) The X-direction feeding assembly 3 drives the No. 2 clamping assembly 5 to move until the No. 2 clamping assembly 5 moves to the top of the test tube 7 to be uncapped.

[0060] 3) The Z-direction feeding assembly 4 drives the No. 2 clamping assembly 5 to move downward until the shaped fingers 51 of the No. 2 clamping assembly 5 completely surround the cap of the test tube 7 to be uncapped.

[0061] 4) The output shaft of the No. 5 stepping motor 54 rotates, drives the traction turntable 59 to rotate through the friction disc 57, and under the dragging force of the rubber rope 58, the paw 52 moves towards the center, so as to change the spacing of the shaped fingers 51 and clamp the cap of the test tube 7.

[0062] 5) The Z-direction feeding assembly 4 drives the No. 2 clamping assembly 5 to move upward until the test tube 7 completely leaves the test tube placing disc 8.

[0063] 6) The X-direction feeding assembly 3 drives the No. 2 clamping assembly 5 to move in the X direction until it moves to the top of the No. 1 clamping assembly 1.

[0064] 7) The Z-axis feed component 4 once again moves the second clamping component 5 downward until the forming fingers of the first clamping component completely surround the lower end of the test tube 7.

[0065] 8) Clamping component 1 clamps the lower end of the test tube, and Z-axis feed component 4 drives clamping component 5 to move upward again until the tube cap is pulled out.

[0066] 9) After the staff completes the reagent collection from the test tube in the first clamping component 1, the Z-axis feed component 4 drives the second clamping component 5 to move down again until the tube cap is pressed onto the test tube 7 in the first clamping component 1.

[0067] 10) The clamping component 1 releases its clamp on the test tube 7, and the two-degree-of-freedom moving mechanism moves the test tube 7 to put the test tube back into the original test tube placement hole of the test tube placement tray 8.

[0068] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A test tube cap opening and closing integrated machine for opening and closing a cap of a test tube (7), characterized in that, Include: Cross degree of freedom drive part, a clamping assembly (1), Y direction feeding assembly (11); Both ends of the cross degree of freedom drive part are connected and supported on the mounting chassis (10) through the column (2), the cross degree of freedom drive part is provided with the second clamping assembly (5) on it, the cross degree of freedom drive part is used to drive the second clamping assembly (5) to translate in X axis direction and Z axis direction, the second clamping assembly (5) comprises: a mounting seat (53), the mounting seat (53) is installed on the drive plate of the cross degree of freedom drive part through the L-shaped mounting plate (6), the bottom edge of the mounting seat (53) is elastically and equidistantly provided with a plurality of shaped fingers (51) through the hand claw (52), the mounting seat (53) is provided with a shaped finger tightening drive part inside, which is used to adjust the spacing between the shaped fingers (51); The first clamping assembly (1) is fixed on one side of the surface of the mounting chassis (10), which is used to fix the test tube (7) transferred out by the second clamping assembly (5); The Y direction feeding assembly (11) is fixed on the other side of the surface of the mounting chassis (10), the drive plate (34) of the Y direction feeding assembly (11) is provided with a bearing assembly (9) containing a test tube placing disc (8), and the Y direction feeding assembly (11) is used to drive the bearing assembly (9) to translate in Y axis direction; The shaped finger tightening drive part comprises: a drive assembly, a traction turntable (59) and a plurality of extension springs (58), both ends of the extension spring (58) are connected with the hand claw (52) and the mounting seat (53) correspondingly; The inside of the mounting seat (53) is provided with a through upper cavity (53.3) and a lower cavity (53.5), the traction turntable (59) is rotationally connected to the bottom wall of the lower cavity (53.5), and the drive assembly is fixed to the bottom wall of the upper cavity (53.3) and rotationally abuts against the traction turntable (59); The side wall of the lower cavity (53.5) is also provided with a plurality of through holes, and the traction turntable (59) is elastically connected with the hand claw (52) through the rubber rope (55) correspondingly; the rubber rope (55) correspondingly crosses the through hole and the extension spring (58); The drive assembly comprises: a fifth stepper motor (54), the fifth stepper motor (54) is installed on the bottom wall of the upper cavity (53.3) through a motor mounting plate (56), and a friction disc (57) is installed on the output shaft of the fifth stepper motor (54), the bottom of the friction disc (57) is provided with a layer of rubber (57.1), and the rubber (57.1) abuts against the traction turntable (59).

2. The test tube opening and closing cap all-in-one machine according to claim 1, characterized by, The cross degree of freedom drive part comprises: an X direction feeding assembly (3) and a Z direction feeding assembly (4), the X direction feeding assembly (3) is horizontally fixed between the top of the column (2), and the Z direction feeding assembly (4) is vertically fixed on the drive plate (34) of the X direction feeding assembly (3).

3. The test tube opening and closing cap all-in-one machine according to claim 2, characterized by The X direction feeding assembly (3) comprises: a base (31), a lead screw (33) and a third stepper motor (35), and a nut is installed on the lead screw (33) in a matched mode; The screw rod (33) is installed in the middle of the base (31) through a bearing with seat, one end of the screw rod (33) is connected with the output shaft of the third stepping motor (35), the base (31) on the two sides of the screw rod (33) is provided with the static guide rail (32), the static guide rail (32) is slidably connected with the driving plate (34) through the sliding block (36), and the driving plate (34) is fixedly connected with the nut.

4. The test tube opening and closing cap all-in-one machine according to claim 3, characterized by The X-direction feeding assembly (3) and the Z-direction feeding assembly (4) are same in structure, and the base (31) in the Z-direction feeding assembly (4) is fixedly connected with the surface of the driving plate (34) in the X-direction feeding assembly (3).

5. The test tube opening and closing cap all-in-one machine according to claim 1, characterized by, The bearing assembly (9) comprises a bearing chassis (91), long tensioning ropes (95) and short tensioning ropes (96), and the bearing chassis (91) is provided with an inner groove (91.1). A pair of clamping plates are installed between the two opposite inner walls of the inner groove (91.1) through damping springs (92), the side wall of the bearing chassis (91) away from one of the clamping plates is fixedly connected with a pull hook (97), one end of the long tensioning ropes (95) and the short tensioning ropes (96) is connected with the pull hook (97), the other end of the short tensioning ropes (96) is connected with the clamping plate close to the pull hook (97), and the other end of the long tensioning ropes (95) is connected with the clamping plate away from the pull hook (97) along the perforation at the bottom of the bearing chassis (91).

6. The test tube opening and closing cap all-in-one machine according to claim 1, characterized by A layer of rubber is also attached to the clamping surface of the shaped finger (51).

7. The test tube opening and closing cap all-in-one machine according to claim 1, characterized by, The second clamping assembly (5) is same in structure with the first clamping assembly (1), and the shaped fingers (51) in the two assemblies are oppositely directed.

8. The test tube opening and closing cap all-in-one machine according to claim 4, characterized by, The Y-direction feeding assembly (11) is same in structure with the X-direction feeding assembly (3) and the Z-direction feeding assembly (4).

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