CN112004071B

CN112004071B - Object exhibition stand with positioning function

Info

Publication number: CN112004071B
Application number: CN202010697154.6A
Authority: CN
Inventors: 杨晓琳; 刘擂擂; 邓光磊; 陈诚; 严光玉
Original assignee: Sichuan Kotien Technology Co ltd
Current assignee: Sichuan Kotien Technology Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2022-02-01
Anticipated expiration: 2040-07-20
Also published as: CN112004071A

Abstract

The invention provides a real object exhibition stand with a positioning function. The object exhibition stand includes the base, the show stand, the support column, the stand, the roof, X axle drive assembly, Y axle drive assembly, camera adjustment mechanism, at least two sets of laser sensor adjustment mechanism and at least two sets of first linear drive assembly that are used for confirming object geometric centre, the roof passes through the stand setting on the base and separates apart with the base, the show stand passes through the support column setting on the base and separates apart with the base, and the show stand is located between base and the roof, X axle drive assembly sets up in one side of roof towards the base and extends along the second direction, Y axle drive assembly sets up in one side of roof towards the base and is driven with following the first direction by X axle drive assembly and remove, camera adjustment mechanism is connected with Y axle drive assembly. The object exhibition stand can accurately position the geometric center of the object side, so that an orthographic projection image of the object side can be obtained.

Description

Object exhibition stand with positioning function

Technical Field

The invention relates to the technical field of exhibition stands, in particular to a real object exhibition stand with a positioning function.

Background

The exhibition stand is indispensable equipment in a multimedia classroom, and can show the real object by being connected with output equipment such as a projector, a computer and the like.

In the in-service use process, because the material object has the influence of factors such as different shapes, different positions of placing, the geometric centre position that causes the surface of material object is also different, makes the camera can't pinpoint the geometric centre of every face of material object like this, promptly, the camera can't just influence subsequent projection effect to the geometric centre of every face.

Disclosure of Invention

The invention aims to provide a real object exhibition stand with a positioning function, so as to solve the technical problems.

The embodiment of the invention is realized by the following steps: a material object exhibition stand with a positioning function comprises a base, an exhibition stand, supporting columns, upright columns, a top plate, an X-axis driving assembly, a Y-axis driving assembly, a camera adjusting mechanism, at least two groups of laser sensor adjusting mechanisms used for determining the geometric center of a material object and at least two groups of first linear driving assemblies, the top plate is arranged on the base through the upright post and is separated from the base, the display stand is arranged on the base through the supporting post and is separated from the base, the display table is positioned between the base and the top plate, the X-axis driving component is arranged on one side of the top plate facing the base and extends along a second direction, the Y-axis driving assembly is arranged on one side, facing the base, of the top plate and is driven by the X-axis driving assembly to move along a first direction, and the camera adjusting mechanism is connected with the Y-axis driving assembly;

the laser sensor adjusting mechanism is in one-to-one correspondence with the first linear driving assemblies, at least two groups of the first linear driving assemblies are arranged along the diagonal distribution of the base and along the height direction of the base between the base and the top plate, and the laser sensor adjusting mechanism is connected with the first linear driving assemblies in an angle-adjustable manner and driven by the first linear driving assemblies to lift.

Optionally, the first linear driving assembly includes a first lifting motor, a first lead screw, and a first sliding plate, the first lifting motor is mounted on the top plate, the first lead screw is rotatably disposed between the top plate and the base and is in transmission connection with the first lifting motor, and the first sliding plate is sleeved on the first lead screw and forms a lead screw nut pair with the first lead screw;

the laser sensor adjusting mechanism comprises a first rotating motor, a first rotary disc, a second rotary disc, an L-shaped support, a second rotating motor and a laser sensor, the first rotating motor is installed on the first sliding plate, the axis of the first rotating motor is parallel to the axis of the first lead screw, the first rotary disc is connected with the output shaft of the first rotating motor, the L-shaped support comprises a first plate and a second plate which are connected with each other, the first plate is connected with the first rotary disc, the second rotating motor is fixed on the second plate, the output shaft of the second rotating motor extends along the horizontal direction, the second rotary disc is connected with the output shaft of the second rotating motor, and the laser sensor is installed on the second rotary disc.

Optionally, the material object exhibition stand with the positioning function further includes a connection plate, four third installation seats and two first guide rods, the four third installation seats are arranged on one side of the top plate facing the base in a rectangular shape, each first guide rod is arranged between two of the third installation seats and extends along the second direction, and the connection plate is respectively sleeved on the two first guide rods;

the X-axis driving assembly comprises a first motor, a second lead screw and two first mounting seats, the two first mounting seats are arranged on one side, facing the base, of the top plate at intervals, the second lead screw is rotatably arranged between the two first mounting seats and forms a lead screw nut pair with the connecting plate, and the first motor is fixedly connected to one of the first mounting seats and is in transmission connection with the second lead screw;

the Y-axis driving assembly comprises a second motor, a third lead screw and two second mounting seats, the second mounting seats are arranged on the connecting plate at intervals, the third lead screw is rotatably arranged between the second mounting seats, the upper end of the camera adjusting mechanism and the third lead screw are constructed into a lead screw nut pair, and the second motor is fixedly connected to one of the second mounting seats and is in transmission connection with the third lead screw.

Optionally, camera adjustment mechanism includes the installed part, rotates piece, first drive assembly and camera, the installed part is provided with the edge first logical groove that the first direction extends and follows the second logical groove that the second direction extends, just the upper end of installed part with Y axle drive assembly connects, it follows to rotate the piece the second direction extends and runs through the second logical groove, first drive assembly follows the first direction extends and stretches into at least partially first logical groove with the second leads to the groove, first drive assembly is used for the drive rotate the piece and wind first drive assembly's axis rotates, the camera is established rotate on the piece.

Optionally, the first driving assembly includes a third motor and a sleeve, the third motor is connected to the mounting member, the sleeve is at least partially disposed in the first through groove, and a stepped portion is disposed on an outer surface of the sleeve and has a stepped surface attached to an inner wall of the first through groove;

the number of step faces is two, two the step faces one-to-one with two inner walls of first logical groove are laminated.

Optionally, the camera adjusting mechanism further comprises a second linear driving assembly for driving the third motor to move along the height direction of the mounting part;

the second linear driving assembly comprises a second lifting motor, a fourth lead screw, a second guide rod and a second sliding plate, the second lifting motor is fixedly connected to the mounting piece, the fourth lead screw extends along the height direction of the mounting piece and is driven by the second lifting motor to rotate, the second sliding plate is sleeved on the fourth lead screw and forms a lead screw nut pair together with the fourth lead screw, the second guide rod is fixedly connected to the mounting piece and extends along the height direction of the mounting piece, the second guide rod penetrates through the second sliding plate, and the third motor is mounted on the second sliding plate.

Optionally, the camera adjusting mechanism further includes a second driving assembly, and the second driving assembly is connected to the first driving assembly and the rotating member respectively and is used for driving the rotating member to translate relative to the sleeve.

Optionally, a mounting hole which is axially and continuously formed along the sleeve is formed in the sleeve, a connecting hole is further formed in the sleeve, the connecting hole extends into the mounting hole from the step surface, the axis of the connecting hole is perpendicular to and intersected with the axis of the mounting hole, the rotating part is provided with a third through groove which is continuously formed along the first direction, a rack is arranged on the inner wall of the third through groove, the second driving assembly comprises a fourth motor and a gear which is sleeved on an output shaft of the fourth motor, and the gear is arranged in the mounting hole and at least partially extends out of the connecting hole to be meshed with the rack.

Optionally, the camera adjusting mechanism further includes a third linear driving assembly for driving the fourth motor to move in the height direction of the mounting member, and the second linear driving assembly and the third linear driving assembly are identical in structure and lift synchronously.

Optionally, the display stand is arranged on the base in a liftable manner.

The embodiment of the invention has the beneficial effects that: through at least two sets of laser sensor adjustment mechanism that are diagonal distribution, can measure the summit coordinate of every face in kind to can determine the geometric center of placing the corresponding side in kind on the show stand, provide camera adjustment mechanism through the coordinate with this geometric center, can make camera adjustment mechanism just shoot the geometric center to corresponding side, thereby can make the image projection of shooing be orthographic projection image.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a material object exhibition stand with a positioning function according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is an enlarged schematic view of FIG. 2;

fig. 4 is a schematic partial structural diagram of a material object display stand with a positioning function according to an embodiment of the present invention, in which the first linear driving assembly and the laser sensor adjustment mechanism are not shown;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

fig. 6 is a schematic structural diagram of a camera adjusting mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

fig. 8 is a partially exploded schematic view of a camera adjustment mechanism provided in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another view angle of fig. 8.

Icon: 10-a base; 20-a support column; 30-a display stand; 40-upright post; 50-a top plate; 61-a first motor; 62-a second lead screw; 63-a first mount; 71-a second motor; 72-third lead screw; 73-a second mount; 74-a connecting plate; 81-a first guide bar; 82-a third mount;

100-a mounting member; 101-a first through slot; 102-a second through slot; 110-a rotating member; 111-a third through slot; 121-a third motor; 122-a sleeve; 1221-mounting holes; 1222-a step portion; 1223-connecting hole; 131-a fourth motor; 132-a gear; 141-a second lifting motor; 142-a fourth lead screw; 143-a second slide plate; 144-a second guide bar; 145-a mounting plate; 146-a fixed part; 150-a camera; 151-a fifth motor;

201-a first lift motor; 202-a first lead screw; 203-a first sliding plate; 204-a first rotating electrical machine; 205-a first carousel; a 206-L shaped stent; 207-a second rotating electrical machine; 208-laser sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, an embodiment of the present invention provides a material object display stand with a positioning function, the material object display stand includes a base 10, a display stand 30, a support column 20, a column 40, a top plate 50, an X-axis driving assembly, a Y-axis driving assembly, a camera adjusting mechanism, at least two sets of laser sensor adjusting mechanisms, and at least two sets of first linear driving assemblies, the top plate 50 is disposed on the base 10 through the column 40 and spaced apart from the base 10, the display stand 30 is disposed on the base 10 through the support column 20 and spaced apart from the base 10, the display stand 30 is located between the base 10 and the top plate 50, the X-axis driving assembly is disposed on a side of the top plate 50 facing the base 10 and extends in a second direction, the Y-axis driving assembly is disposed on a side of the top plate 50 facing the base 10 and is driven by the X-axis driving assembly to move in a first direction, the camera adjusting mechanism is connected with the Y-axis driving assembly, therefore, the camera adjusting mechanism can be driven by the X-axis driving component and the Y-axis driving component to move. Wherein, the number of the upright posts 40 and the supporting posts 20 can be at least three respectively, so as to stably support the top plate 50 and the display stand 30 respectively, and the top plate 50 is parallel to the surface of the base 10, and the display stand 30 is parallel to the surface of the base 10. The laser sensor adjusting mechanisms are in one-to-one correspondence with the first linear driving assemblies, namely, each group of first linear driving assemblies is provided with one group of laser sensor adjusting mechanisms, at least two groups of first linear driving assemblies are distributed along the diagonal angle of the base and are arranged between the base 10 and the top plate 50 along the height direction of the base, the laser sensor adjusting mechanisms are connected with the first linear driving assemblies in an angle-adjustable mode and driven to lift by the first linear driving assemblies, the laser sensor adjusting mechanisms can be provided with two or four groups, so that the distance of the top point of each side of the object can be measured, and the laser sensor adjusting mechanisms are used for determining the geometric center of each side of the object.

Since it is necessary to photograph the bottom surface of the real object, the display stand 30 is transparent, and for example, the display stand 30 may be made of transparent glass.

The first linear driving assembly controls the laser sensor adjusting mechanism to move up and down on a Z axis (the direction in which the first linear driving assembly extends), namely, the first linear driving assembly can acquire a Z axis space coordinate of the laser sensor adjusting mechanism.

Based on this, through at least two sets of laser sensor adjustment mechanism that are the diagonal distribution, can measure the summit coordinate of every face in kind to can determine the geometric center of placing the corresponding side in kind on show stand 30, provide camera adjustment mechanism through the coordinate with this geometric center, can make camera adjustment mechanism just shoot the geometric center to corresponding side, thereby can make the image projection of shooing be the orthographic projection image.

Referring to fig. 1 and 2, specifically, the first linear driving assembly includes a first lifting motor 201, a first lead screw 202 and a first sliding plate 203, the first lifting motor 201 is installed on the top plate 50, the first lead screw 202 is rotatably disposed between the top plate 50 and the base 10 and is in transmission connection with the first lifting motor 201, and the first sliding plate 203 is sleeved on the first lead screw 202 and forms a lead screw nut pair with the first lead screw 202.

Referring to fig. 2 and 3, the laser sensor adjustment mechanism includes a first rotating motor 204, a first rotating plate 205, a second rotating plate, an L-shaped bracket 206, a second rotating motor 207, and a laser sensor 208, the first rotating motor 204 is mounted on the first sliding plate 203 and an axis of the first rotating motor 204 is parallel to an axis of the first lead screw 202, the first rotating plate 205 is connected to an output shaft of the first rotating motor 204, the first rotating plate 205 may be circular such that the output shaft of the first rotating motor 204 is connected to a center of the first rotating plate 205, the L-shaped bracket 206 includes a first plate and a second plate connected to each other, the first plate is connected to the first rotating plate 205, the second rotating motor 207 is fixed to the second plate and an output shaft of the second rotating motor 207 extends in a horizontal direction, the second rotating plate is connected to an output shaft of the second rotating motor 207, the second rotating plate may be circular such that the output shaft of the second rotating motor 207 is connected to a center of the second rotating plate, the laser sensor 208 is mounted on the second turntable.

As can be seen from the above description, the first lift motor 201 is a servo motor and is provided with an encoder or a distance sensor, so that the Z-axis coordinate of the laser sensor adjustment mechanism can be accurately obtained. The first rotating motor 204 and the second rotating motor 207 are also respectively provided with an encoder to accurately acquire the rotating angle of the laser sensor 208, and the laser sensor 208 can measure the distance from the laser sensor 208 to the vertex of the corresponding side of the object. For example, the object is a cube, when the geometric center of the top surface of the cube needs to be determined, the top surface has four vertices, the distance to the first vertex can be measured by the laser sensor, then, by controlling the first rotating motor and the second rotating motor, the laser beam emitted from the laser sensor reaches the adjacent second vertex, and thereby, the conversion is carried out according to the rotating angles of the first rotating motor and the second rotating motor and the distances between the laser sensor and the first vertex and the second vertex respectively, the coordinates of the first vertex and the second vertex on the horizontal plane can be obtained, and then the Z-axis coordinates of the first vertex and the second vertex are obtained through the first linear driving assembly (when laser emitted by the laser sensor is on the horizontal plane, the Z-axis height of the laser sensor is equal to the Z-axis height of the first vertex and the second vertex), so that the space coordinates of the first vertex and the second vertex can be established. Similarly, the spatial coordinates of the remaining two vertices and the spatial coordinates of the other side vertices can be obtained, so that the geometric center of each face can be accurately determined.

Referring to fig. 5, in particular, the material object display stand with the positioning function further includes a connecting plate 74, four third mounting seats 82 and two first guide rods 81, the four third mounting seats 82 are disposed on one side of the top plate 50 facing the base 10 in a rectangular shape, each first guide rod 81 is disposed between two of the third mounting seats 82 and extends along the second direction, the two first guide rods 81 are disposed in parallel, and the connecting plate 74 is respectively sleeved on the two first guide rods 81 and slidably connected with the first guide rods 81, that is, under the action of external force, the connecting plate 74 can slide back and forth on the two first guide rods 81.

Referring to fig. 5, the X-axis driving assembly includes a first motor 61, a second lead screw 62 and two first mounting seats 63, the two first mounting seats 63 are spaced apart from each other on a side of the top plate 50 facing the base 10, the second lead screw 62 is rotatably disposed between the two first mounting seats 63 and is configured as a lead screw nut pair with the connecting plate 74, the first motor 61 is fixedly connected to one of the first mounting seats 63 and is in transmission connection with the second lead screw 62, in some other embodiments, the first motor 61 may also be fixed on the top plate 50, so that when the first motor 61 operates, it drives the second lead screw 62 to rotate, thereby driving the connecting plate 74 to move back and forth relative to the second lead screw 62.

Referring to fig. 5, the Y-axis driving assembly includes a second motor 71, a third lead screw 72, and two second mounting seats 73, the two second mounting seats 73 are spaced apart from each other on a connecting plate 74, the third lead screw 72 is rotatably disposed between the two second mounting seats 73, and the upper end of the camera adjusting mechanism and the third lead screw 72 form a lead screw nut pair, the second motor 71 is fixedly connected to one of the second mounting seats 73 and is in transmission connection with the third lead screw 72, thus, under the action of the second motor 71, the second motor 71 can drive the mounting member 100 to move back and forth on the third lead screw 72, namely, the X-axis driving component and the Y-axis driving component can greatly increase the moving range of the camera adjusting mechanism in the horizontal plane, especially, when the size of the real object on the display stand 30 is too large, the moving range of the camera adjusting mechanism in the horizontal plane is enlarged, and the real object can be shot more comprehensively.

In addition, the first motor 61 and the second motor 71 can adopt servo motors, so that the moving position of the camera adjusting mechanism is more accurate.

Referring to fig. 6 and 7, in particular, the camera adjusting mechanism includes a mounting member 100, a rotating member 110, a first driving assembly and a camera 150, the mounting member 100 is provided with a first through groove 101 extending along a first direction and a second through groove 102 extending along a second direction, the first direction is perpendicular to and intersects the second direction, wherein the mounting member 100 may be provided in a prism shape, such as a quadrangular prism, so that the first through groove 101 may penetrate from a first side surface of the quadrangular prism to a third side surface opposite thereto, the second through groove 102 may penetrate from the second side surface of the quadrangular prism to a fourth side surface opposite thereto, so that the first through groove 101 and the second through groove 102 are configured in a cross-shaped cavity structure, the rotating member 110 extends along the second direction and penetrates the second through groove 102, the first driving assembly extends along the first direction and at least partially penetrates into the first through groove 101 and the second through groove 102, the first driving assembly is used for driving the rotating member 110 to rotate around the axis of the first driving assembly, and the camera 150 is arranged on the rotating member 110.

Under X axle drive assembly and Y axle drive assembly's effect, through driving camera adjustment mechanism, the range of motion of camera can be increased, under first drive assembly's effect, it can rotate around first drive assembly's axis to rotate piece 110, thereby can adjust the contained angle size between rotation piece 110 and installed part 100, can change camera 150's spatial position from this, be favorable to increasing camera 150's shooting scope, consequently, make the camera can shoot the material object on show stand 30 in a multi-angle ground.

In order to further expand the photographing range of the camera 150, the second through-groove 102 may be disposed to extend in a length direction of the mounting member 100, in other words, the length of the second through-groove 102 may be close to the length of the mounting member 100, which may allow the rotation member 110 to rotate more angularly within the second through-groove 102.

It is anticipated that the shape of the first through slot 101 and the second through slot 102 is sufficiently large, i.e., the length and width of the first through slot 101 are sufficiently large, which is more beneficial to reduce the weight of the camera adjustment mechanism.

In addition, the camera 150 may be disposed on an end surface of one of the ends of the rotation member 110, which may increase a photographing range of the camera 150.

Referring to fig. 6, 7 and 8, further, the first driving assembly includes a third motor 121 and a sleeve 122, the third motor 121 is connected to the mounting member 100, the sleeve 122 is at least partially disposed in the first through groove 101, a step 1222 is disposed on an outer surface of the sleeve 122, the step 1222 has a step surface that fits the inner wall of the first through groove 101, the sleeve 122 can be driven to rotate by the third motor 121, because the step 1222 changes a cylindrical outer circumferential surface of the sleeve 122, when the sleeve 122 is sleeved on the outer circumferential surface of the sleeve 122 corresponding to the step 1222, the sleeve 122 can be tightly fitted with the first through groove 101 of the rotating member 110, that is, the sleeve 122 can drive the rotating member 110 to rotate when rotating, so that circumferential sliding between the sleeve 122 and the rotating member 110 is not generated, stability of the rotating member 110 is improved, and accurate rotation is facilitated.

In some embodiments, a rotary cylinder may also be used to drive the sleeve 122 in rotation.

Further, the number of step faces is two, and two step faces are attached to two inner walls of the first through groove 101 in a one-to-one correspondence manner, and the two inner walls of the first through groove 101 are in a parallel relationship, so that the two step faces are in a parallel relationship, and by arranging the two step faces, two sides of the sleeve 122 can be tightly attached to the two inner walls of the first through groove 101 at the same time, so that the sleeve 122 and the rotating member 110 can be ensured to be combined more tightly.

The camera adjustment mechanism further comprises a second linear driving assembly for driving the third motor 121 to move along the height direction of the mounting piece 100, and under the action of the second linear driving assembly, the third motor 121 can be adjusted relative to the position of the mounting piece 100, so that the camera adjustment mechanism is beneficial to being closer to a part to be shot, and the shooting definition and the shooting range are improved.

Wherein the second linear drive assembly may be configured in any suitable configuration.

Referring to fig. 6 and 8, in the present embodiment, the second linear driving assembly includes a second lifting motor 141, a fourth lead screw 142, a second guide rod 144 and a second sliding plate 143, the second lifting motor 141 is fixedly connected to the mounting member 100, the fourth lead screw 142 extends along the height direction of the mounting member 100 and is driven to rotate by the second lifting motor 141, the second sliding plate 143 is sleeved on the fourth lead screw 142 and is configured as a lead screw nut pair with the fourth lead screw 142, the second guide rod 144 is fixedly connected to the mounting member 100 and extends along the height direction of the mounting member 100, the second guide rod 144 passes through the second sliding plate 143, the third motor 121 is mounted on the second sliding plate 143, so that, when the second lifting motor 141 operates, which can drive the screw 142 to rotate, thereby causing the second sliding plate 143 to move along the axial direction of the fourth screw 142, therefore, the rotating member 110 can be driven to move up and down, and the shooting range of the camera 150 can be enlarged.

In some other embodiments, an air cylinder may be adopted to drive the second sliding plate 143 to lift.

In this embodiment, the camera adjusting mechanism further includes a second driving assembly, the second driving assembly is connected to the first driving assembly and the rotating member 110 respectively and is used for driving the rotating member 110 to translate relative to the sleeve 122, and under the action of the second driving assembly, the rotating member 110 can move along the first direction relative to the sleeve 122, so that the position of the camera 150 in the first direction can be adjusted, and the shooting range of the camera 150 is further increased.

Referring to fig. 7, 8 and 9, specifically, the sleeve 122 is provided with a through mounting hole 1221 along the axial direction thereof, that is, the mounting hole 1221 extends along the axial direction of the sleeve 122 and penetrates both ends of the sleeve 122, the sleeve 122 is further provided with a connection hole 1223, the connection hole 1223 extends into the mounting hole 1221 from the step surface, the axis of the connection hole 1223 is perpendicular to and intersects with the axis of the mounting hole 1221, the rotating member 110 is provided with a third through-groove 111 penetrating along the first direction, the inner wall of the third through slot 111 is provided with a rack extending along the length direction of the rotating member 110, the second driving assembly comprises a fourth motor 131 and a gear 132 sleeved on the output shaft of the fourth motor 131, the gear 132 is arranged in the mounting hole 1221 and at least partially extends out of the connecting hole 1223 to be engaged with the rack, since the gear 132 is circular, the shape of the coupling hole 1223 may be rectangular in order to facilitate the gear 132 to be protruded from the coupling hole 1223. Therefore, when the fourth motor 131 works, it drives the gear 132 to rotate, and further drives the rotating member 110 to translate relative to the sleeve 122 through the gear 132 and the rack. Under the effect of second drive assembly, the rotation piece 110 can stretch out or retract relative to the show stand 30 to can reach the top middle part, the below middle part or the side direction middle part of show stand 30, be favorable to carrying out the omnidirectional shooting to the material object on the show stand 30.

In addition, in order to enable the fourth motor 131 to lift synchronously with the third motor 121, the camera adjusting mechanism further includes a third linear driving assembly (not shown in the figure) for driving the fourth motor 131 to move along the height direction of the mounting member 100, and the second linear driving assembly and the third linear driving assembly have the same structure and lift synchronously, that is, under the action of the third linear driving assembly, the third motor 121 and the fourth motor 131 can lift synchronously, so as to ensure that the sleeve 122 and the gear 132 can lift synchronously, ensure the position consistency of the sleeve 122 and the gear 132, or ensure that the axis of the sleeve 122 and the axis of the output shaft of the fourth motor 131 are in the same straight line or parallel to each other.

In this embodiment, referring to fig. 2, the camera adjustment mechanism further includes a fifth motor 151, the fifth motor 151 is located between the camera 150 and the rotating member 110, and the fifth motor 151 can control the camera 150 to rotate, for example, the position shown in fig. 2 is that the camera 150 faces downward, when the rotating member 110 moves to the lower side of the display stand 30, the camera 150 cannot shoot an object above the display stand 30 at this time, and the fifth motor 151 controls the camera 150 to rotate 180 degrees, so that the camera 150 faces upward, and thus the bottom surface of the object can be shot through the display stand 30.

Referring to fig. 6, 7 and 8, further, the camera adjusting mechanism further includes a mounting plate 145, one end of the mounting member 100 is fixed on the mounting plate 145, the second linear driving assembly and the third linear driving assembly are both disposed on the mounting plate 145, and by disposing the mounting plate 145, the third motor 121 and the fourth motor 131 can be both mounted on the mounting plate 145, which is more convenient to mount than the third motor 121 and the fourth motor 131 are fixed on the mounting member 100. In addition, the mounting plate 145 may be provided with a fixing portion 146 to connect with the third lead screw 72, and the fixing portion 146 and the third lead screw 72 form a lead screw nut pair, so that when the second motor 71 works, the camera adjusting mechanism can move back and forth on the third lead screw 72.

Referring to fig. 1, the display stand 30 may be disposed on the base 10 in a liftable manner, and for example, an air cylinder may be disposed between the base 10 and the supporting column 20 to lift the display stand 30. When the object of the display stand 30 has a large volume and needs to be photographed on the bottom surface of the object, if the distance between the display stand 30 and the base 10 is too small, the photographing range of the camera is too small, and it is difficult to photograph the bottom surface contour of the object completely. At this time, the display stand 30 may be raised so that the distance between the camera and the display stand 30 may be increased after the camera is moved to the lower side of the display stand 30, so that the real object on the display stand 30 may be completely photographed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A real object exhibition stand with a positioning function is characterized by comprising a base, an exhibition stand, a supporting column, a stand column, a top plate, an X-axis driving assembly, a Y-axis driving assembly, a camera adjusting mechanism, at least two groups of laser sensor adjusting mechanisms used for determining a geometric center of a real object and at least two groups of first linear driving assemblies, wherein the top plate is arranged on the base through the stand column and is spaced apart from the base, the exhibition stand is arranged on the base through the supporting column and is spaced apart from the base, the exhibition stand is positioned between the base and the top plate, the X-axis driving assembly is arranged on one side of the top plate facing the base and extends along a second direction, the Y-axis driving assembly is arranged on one side of the top plate facing the base and is driven by the X-axis driving assembly to move along a first direction, the camera adjusting mechanism is connected with the Y-axis driving assembly;

the laser sensor adjusting mechanisms are in one-to-one correspondence with the first linear driving assemblies, at least two groups of the first linear driving assemblies are distributed along the diagonal angle of the base and are arranged between the base and the top plate along the height direction of the base, and the laser sensor adjusting mechanisms are connected with the first linear driving assemblies in an angle-adjustable manner and are driven by the first linear driving assemblies to lift;

the camera adjusting mechanism comprises a mounting part, a rotating part, a first driving assembly and a camera, wherein the mounting part is provided with a first through groove extending along the first direction and a second through groove extending along the second direction, the upper end of the mounting part is connected with the Y-axis driving assembly, the rotating part extends along the second direction and penetrates through the second through groove, the first driving assembly extends along the first direction and at least partially extends into the first through groove and the second through groove, the first driving assembly is used for driving the rotating part to rotate around the axis of the first driving assembly, and the camera is arranged on the rotating part;

the display stand is arranged on the base in a lifting manner.

2. The material object display stand with positioning function as claimed in claim 1, wherein the first linear driving assembly comprises a first lifting motor, a first lead screw and a first sliding plate, the first lifting motor is mounted on the top plate, the first lead screw is rotatably disposed between the top plate and the base and is in transmission connection with the first lifting motor, and the first sliding plate is sleeved on the first lead screw and forms a lead screw nut pair with the first lead screw;

3. The physical exhibition stand with positioning function of claim 1, further comprising a connecting plate, four third installation seats and two first guide rods, wherein the four third installation seats are arranged on the side of the top plate facing the base in a rectangular shape, each first guide rod is arranged between two of the third installation seats and extends along the second direction, and the connecting plate is sleeved on the two first guide rods respectively;

4. The physical display stand with positioning function according to claim 1, wherein the first driving assembly comprises a third motor and a sleeve, the third motor is connected with the mounting member, the sleeve is at least partially arranged in the first through groove, and a step part is arranged on the outer surface of the sleeve and provided with a step surface which is attached to the inner wall of the first through groove;

5. The material object display stand with positioning function of claim 4, wherein the camera adjustment mechanism further comprises a second linear driving component for driving the third motor to move along the height direction of the mounting part;

6. The object display stand with positioning function of claim 5, wherein the camera adjustment mechanism further comprises a second driving assembly, the second driving assembly is connected to the first driving assembly and the rotating member respectively and is used for driving the rotating member to translate relative to the sleeve.

7. The object display stand with positioning function as claimed in claim 6, wherein the sleeve has a through hole along an axial direction thereof, the sleeve has a connecting hole extending from the step surface into the mounting hole, an axis of the connecting hole is perpendicular to and intersects with an axis of the mounting hole, the rotating member has a third through groove extending along the first direction, an inner wall of the third through groove is provided with a rack, the second driving assembly includes a fourth motor and a gear sleeved on an output shaft of the fourth motor, and the gear is disposed in the mounting hole and at least partially protrudes from the connecting hole to engage with the rack.

8. The object display stand with positioning function as recited in claim 7, wherein the camera adjustment mechanism further comprises a third linear driving assembly for driving the fourth motor to move along the height direction of the mounting member, and the second linear driving assembly and the third linear driving assembly are identical in structure and can be lifted and lowered synchronously.