1. The utility model provides a high vacuum normal position atomic force microscope device of delivering samples, includes base (1), install atomic force microscope body (3) on base (1), its characterized in that:

the base (1) is symmetrically provided with two parallel grooves, a polished rod (2) is arranged in one groove and fixedly connected with the inner wall of the groove, a screw rod (4) is arranged in the other groove and rotatably connected with the inner wall of the groove, and the screw rod (4) extends to the outer side of the groove and is connected with a driving mechanism (5) for driving the screw rod to rotate;

the polished rod (2) and the screw rod (4) are sleeved with connecting frames (12), the connecting frames (12) are connected with the polished rod (2) in a sliding mode, the screw rod (4) is in threaded connection with the connecting frames (12), and the two connecting frames (12) are fixedly connected with a supporting plate (13) together;

a notch is formed in the middle of the supporting plate (13), a rotating shaft (11) is rotatably connected to the inner wall of the notch, a fixing sleeve (10) is sleeved on the rotating shaft (11), a plurality of connecting rods (9) are fixedly connected to the outer surface of the fixing sleeve (10) in the radial direction, and a sample placing vessel (7) is fixedly connected to one end, far away from the fixing sleeve (10), of each connecting rod (9);

one end of the rotating shaft (11) is connected with a turnover mechanism (8) for driving the gap of the rotating shaft to turn over, and the other end of the rotating shaft (11) is provided with a locking mechanism (6) which is locked after turning over.

2. The high vacuum in-situ atomic force microscope sample feeding device according to claim 1, wherein the driving mechanism (5) is composed of a motor (51), a worm (52), a worm wheel (53) and a fixing sleeve (55);

the extension department at base (1) is installed in motor (51) adoption, the output shaft and worm (52) fixed connection of motor (51), worm (52) and worm wheel (53) meshing, worm wheel (53) and fixed cover (55) key-type connection, fixed cover (55) and screw rod (4) fixed connection.

3. The high-vacuum in-situ atomic force microscope sample feeding device according to claim 2, wherein the worm (52) is fixedly connected with an output shaft of the motor (51) through a coupling, a bearing seat (54) is connected to one end of the worm (52) far away from the motor (51), the bearing seat (54) is fixedly connected to the base (1), and the bearing seat (54) is a deep groove ball bearing seat.

4. A high vacuum in-situ afm sample feeding device according to claim 1, wherein the solid part of the locking mechanism (6) is composed of a shaped shell (61), a fixture block (64), a spring (65) and a T-shaped rod (66);

the utility model discloses a special-shaped casing (61) and layer board (13) fixed connection, set up slot (67), accomodate groove (68) and spacing groove (62) in special-shaped casing (61), slot (67) with accomodate groove (68) intercommunication, be provided with fixture block (64) in accomodating groove (68), the welding has spring (65) between the inner wall of fixture block (64) and slot (67), fixture block (64) fixedly connected with T type pole (66), the inner wall of accomodating groove (68) is passed in T type pole (66) clearance and is extended to spacing groove (62) in, a plurality of draw-in grooves (63) that use with fixture block (64) cooperation have been seted up on pivot (11).

5. The high-vacuum in-situ atomic force microscope sample feeding device according to claim 1, wherein the turnover mechanism (8) is composed of a cabinet (81), a driving dial (82), a driven sheave (83) and a speed reduction motor (84);

the driving dial (82) is meshed with the driven sheave (83), the driving dial (82) and the driven sheave (83) are both arranged in the case (81), the speed reducing motor (84) is installed on the outer side of the case (81), the driving dial (82) is in key connection with an output shaft of the speed reducing motor (84), and the driven sheave (83) is in key connection with the rotating shaft (11).

6. A high vacuum in-situ atomic force microscope sample presentation device according to claim 5, wherein the driven sheave (83) is a four-groove sheave, and the number of the sample placing vessels (7) is four.

Background

The basic principle of the sub-force microscope is as follows: one end of a micro-cantilever which is sensitive to weak force is fixed, the other end of the micro-cantilever is provided with a micro-needle point, the micro-needle point is lightly contacted with the surface of a sample, and because the weak repulsive force exists between atoms at the tip end of the micro-needle point and atoms on the surface of the sample, the micro-cantilever with the micro-needle point moves up and down in the direction vertical to the surface of the sample corresponding to an equipotential surface of the acting force between the micro-needle point and the atoms on the surface of the sample by controlling the constancy of the force during scanning. The position change of the micro-cantilever corresponding to each scanning point can be measured by an optical detection method or a tunnel current detection method, so that the information of the surface topography of the sample can be obtained.

However, in the prior art, the atomic force microscope usually adopts a manual sample feeding mode, and the atomic force microscope needs to be stopped and reloaded when different samples are measured, so that the mode is time-consuming and labor-consuming, and needs to be changed urgently.

Disclosure of Invention

The invention aims to solve the problems and provides a high-vacuum in-situ atomic force microscope sample feeding device.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a high vacuum normal position atomic force microscope sample presentation device, includes the base, install the atomic force microscope body on the base:

the base is symmetrically provided with two parallel slots, a polished rod is arranged in one slot and fixedly connected with the inner wall of the slot, a screw rod is arranged in the other slot and rotatably connected with the inner wall of the slot, and the screw rod extends to the outer side of the slot and is connected with a driving mechanism for driving the screw rod to rotate;

the polished rod and the screw rod are both sleeved with connecting frames, the connecting frames are connected with the polished rod in a sliding mode, the screw rod is in threaded connection with the connecting frames, and the two connecting frames are fixedly connected with the supporting plate together;

a notch is formed in the middle of the supporting plate, a rotating shaft is rotatably connected to the inner wall of the notch, a fixing sleeve is sleeved on the rotating shaft, a plurality of connecting rods are fixedly connected to the outer surface of the fixing sleeve in the radial direction, and a sample placing vessel is fixedly connected to one end, away from the fixing sleeve, of each connecting rod;

one end of the rotating shaft is connected with a turnover mechanism for driving the gap of the rotating shaft to turn over, and the other end of the rotating shaft is provided with a locking mechanism for locking after turning over.

Optionally, the driving mechanism is composed of a motor, a worm wheel and a fixing sleeve;

the motor is installed at the extending position of the base, an output shaft of the motor is fixedly connected with the worm, the worm is meshed with the worm wheel, the worm wheel is connected with the fixed sleeve key, and the fixed sleeve is fixedly connected with the screw.

Optionally, the worm is fixedly connected with an output shaft of the motor through a coupler, one end of the worm, which is far away from the motor, is connected with a bearing seat, the bearing seat is fixedly connected to the base, and the bearing seat is a deep groove ball bearing seat.

Optionally, the solid part of the locking mechanism is composed of a special-shaped shell, a clamping block, a spring and a T-shaped rod;

the special-shaped shell is fixedly connected with the supporting plate, a slot, an accommodating groove and a limiting groove are formed in the special-shaped shell, the slot is communicated with the accommodating groove, a clamping block is arranged in the accommodating groove, a spring is welded between the clamping block and the inner wall of the slot, a T-shaped rod is fixedly connected with the clamping block, a gap of the T-shaped rod penetrates through the inner wall of the accommodating groove and extends into the limiting groove, and a plurality of clamping grooves matched with the clamping block are formed in the rotating shaft.

Optionally, the turnover mechanism is composed of a chassis, a driving dial, a driven sheave and a speed reduction motor;

the driving plate is meshed with the driven grooved pulley, the driving plate and the driven grooved pulley are both arranged in the case, the speed reducing motor is installed on the outer side of the case, the driving plate is in key connection with an output shaft of the speed reducing motor, and the driven grooved pulley is in key connection with the rotating shaft.

Optionally, the driven sheave is a four-groove sheave, and the number of the sample placing vessels is four.

The invention has the following advantages:

according to the invention, the rotating shaft is arranged, the turnover mechanism which is matched with the rotating shaft to move is arranged, the driving drive plate is driven to continuously rotate by the power of the motor, and the driven grooved wheel is driven by the driving drive plate to convert the continuous movement into the gap movement, so that the gap rotation of the rotating shaft is realized. The driven grooved wheels adopt four grooved wheels, the number of the sample placing utensils is four, the four grooved wheels can drive the four placing utensils to synchronously overturn, the placing utensils on the upper side can be used for measurement, the placing utensils on the two sides can be used for alternative, switching measurement is convenient to realize, and time and energy of measuring personnel are greatly saved.

According to the invention, the locking mechanism is arranged to be matched with the turnover mechanism, the clamping block is driven to be clamped into the clamping groove through the elasticity of the spring to realize the locking of the rotating shaft, and the rotating shaft can be locked after being turned over by being matched with the turnover mechanism, so that the stability of the atomic force microscope during measurement is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the driving mechanism of the present invention;

FIG. 4 is a schematic view of a locking mechanism of the present invention;

FIG. 5 is a schematic view of the turnover mechanism of the present invention.

In the figure: the device comprises a base 1, a polished rod 2, a microscope body 3, a screw 4, a driving mechanism 5, a motor 51, a worm 52, a worm wheel 53, a bearing seat 54, a fixed sleeve 55, a locking mechanism 6, a special-shaped shell 61, a limit groove 62, a clamping groove 63, a clamping block 64, a spring 65, a T-shaped rod 66, a slot 67, a holding groove 68, a sample placing vessel 69, a sample placing vessel 7, a turnover mechanism 8, a chassis 81, a driving dial 82, a driven grooved wheel 83, a speed reducing motor 84, a connecting rod 9, a fixed sleeve 10, a rotating shaft 11, a connecting frame 12 and a supporting plate 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a high vacuum in-situ atomic force microscope sample feeding device comprises a base 1, wherein an atomic force microscope body 3 is arranged on the base 1.

Two parallel slots are symmetrically formed in the base 1, a polished rod 2 is arranged in one slot, the polished rod 2 is fixedly connected with the inner wall of the slot, a screw rod 4 is arranged in the other slot, and the screw rod 4 is rotatably connected with the inner wall of the slot.

The screw rod 4 extends to the outside of the groove and is connected with a driving mechanism 5 for driving the screw rod to rotate, the driving mechanism 5 is composed of a motor 51, a worm 52, a worm wheel 53 and a fixing sleeve 55, and the specific connection mode is as follows:

the motor 51 is installed at the extending position of the base 1, the output shaft of the motor 51 is fixedly connected with the worm 52, the worm 52 is meshed with the worm wheel 53, the worm wheel 53 is in key connection with the fixed sleeve 55, and the fixed sleeve 55 is fixedly connected with the screw rod 4.

The worm 52 is fixedly connected with an output shaft of the motor 51 through a coupling (not shown in the figure), one end of the worm 52, which is far away from the motor 51, is connected with a bearing seat 54, the bearing seat 54 is fixedly connected on the base 1, and the bearing seat 54 is a deep groove ball bearing seat. The bearing seat 54 is provided for supporting and fixing.

The driving mechanism 5 is used for driving the worm 52 to rotate by the power of the motor 51, the worm 52 drives the worm wheel 53 to rotate, the worm wheel 53 drives the fixing sleeve 55 to rotate, the fixing sleeve 55 drives the screw 4 to rotate, and the screw 4 finally drives the supporting plate 13 to move axially.

All the cover is equipped with link 12 on polished rod 2 and the screw rod 4, link 12 and polished rod 2 sliding connection, screw rod 4 and link 12 threaded connection, the common fixedly connected with layer board 13 of two link 12.

The middle part of layer board 13 is seted up jaggedly, rotates on the inner wall of breach and is connected with pivot 11, and the cover is equipped with fixed cover 10 on the pivot 11, and the radial fixedly connected with a plurality of connecting rods 9 of the surface of fixed cover 10, the one end fixedly connected with sample that fixed cover 10 was kept away from to connecting rod 9 place household utensils 7.

One end of the rotating shaft 11 is connected with a turnover mechanism 8 for driving the gap of the rotating shaft to turn, the turnover mechanism 8 is composed of a case 81, a driving dial 82, a driven sheave 83 and a speed reduction motor 84, and the specific connection mode is as follows:

the driving dial 82 is engaged with the driven sheave 83, the driving dial 82 and the driven sheave 83 are both arranged in the case 81, the speed reducing motor 84 is installed on the outer side of the case 81, the driving dial 82 is in key connection with an output shaft of the speed reducing motor 84, and the driven sheave 83 is in key connection with the rotating shaft 11.

The turnover mechanism 8 has the function that the driving dial 82 is driven by the power of the motor 84 to continuously rotate, and the driven grooved wheel 83 is driven by the driving dial 82 to convert the continuous motion into the gap motion, so that the gap rotation of the rotating shaft 11 is realized.

The driven grooved wheels 83 are four grooved wheels, the number of the sample placing vessels 7 is four, the four grooved wheels can drive the four sample placing vessels 7 to synchronously turn over, the sample placing vessel 7 on the upper side can be used for measurement, the sample placing vessels 7 on the two sides can be used for alternative, and switching measurement is convenient to achieve.

The other end of the rotating shaft 11 is provided with a locking mechanism 6 which is locked after being turned over, the solid part of the locking mechanism 6 is composed of a special-shaped shell 61, a clamping block 64, a spring 65 and a T-shaped rod 66, and the specific connection mode is as follows:

dysmorphism casing 61 and layer board 13 fixed connection, seted up slot 67 in the dysmorphism casing 61, accomodate groove 68 and spacing groove 62, slot 67 with accomodate groove 68 intercommunication, accomodate the inslot and be provided with fixture block 64, the welding has spring 65 between fixture block 64 and the inner wall of slot 67, fixture block 64 fixedly connected with T type pole 66, the inner wall of accomodating groove 68 is passed in T type pole 66 clearance and is extended to the spacing groove 62 in, a plurality of draw-in grooves 63 that use with the fixture block 64 cooperation have been seted up on the pivot 11.

The locking mechanism 6 has the effects that the elastic force of the spring 65 drives the clamping block 64 to be clamped into the clamping groove 63 to lock the rotating shaft 11, and the rotating shaft 11 can be locked after being turned by matching with the turning mechanism 8.

The above description is only a preferred embodiment of the present invention, and not intended to be exhaustive or to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.