CN218511770U - Total powerstation vertical axis precision alignment device - Google Patents

Abstract

The utility model discloses a total powerstation vertical axis precision alignment device, including total powerstation, the accurate displacement platform of XY axle and aim at the mark, the accurate displacement platform of XY axle passes through the connector to be connected with the carrying handle of total powerstation, and the accurate displacement platform of XY axle includes X axle fine setting knob and Y axle fine setting knob, aim at the mark and connect in the accurate displacement platform of XY axle. The utility model discloses an increase on original total powerstation and aim at the mark for the wire is measured and is realized angle and distance synchronous observation, through increasing the accurate displacement platform of XY axle, makes the axis of aiming at the mark and the axis collineation of total powerstation, the axis coincidence of the two promptly, during the in-service use, only need adjust the total powerstation aim at can.

Description

Total powerstation vertical axis precision alignment device

Technical Field

The utility model belongs to the technical field of measure, concretely relates to total powerstation vertical axis precision alignment device.

Background

In high-precision wire measurement, a total station is usually used at a measuring station to complete the measurement of the side length and the azimuth of a wire, a reflecting prism is usually arranged at a target station to complete the measurement of the distance, and the azimuth angle is observed through a target plate or an independent target plate arranged on a prism group. However, in some special measurement scenarios, such as the calibration and measurement work of the space launching and measurement and control system, the difficulties of narrow visual field, small operation range, complex terrain and short sides exist. The method for achieving high-precision wire measurement by using the total station has high requirements for point centering errors, the total station mutual aiming observation can achieve high-precision azimuth transmission, but distance observation cannot be achieved in the aiming process, the total station of a target station needs to be replaced by a prism, and distance is observed independently.

In the measurement of the short-side lead in the precision engineering, a triple total station method or a triple tripod method is generally adopted. The total station can achieve the angle measurement accuracy of 0.5' and the distance accuracy of 0.6mm (within 100 meters). The main error of the two methods is the alignment error of the sighting target and the observation instrument, namely, the deviation of the shafting centers of the sighting target and the observation instrument is obtained when the equipment serving as the sighting target is replaced by the total station for observation under the condition that the erection position is not changed. Taking the length of the wire side of 10 meters as an example, the angle error is increased by 2' every time the centering error is increased by 0.1 mm. If a precision prism is used as a collimation target, the centering precision of the precision prism is about 0.5mm, the angle precision is 10', and the observation requirement can not be met obviously. At present, the wire measurement of the 10-meter inner short edge mainly adopts a total station aiming method and an inner (outer) target method to realize the precise transmission of the wire direction. The method adopts two total stations, utilizes the cross silk screens of the collimation parts of the instruments to aim at each other, or uses the total stations to arrange targets (called inner targets) in the collimation parts of the instruments or paste corresponding sighting marks (called outer targets) on the outer sides of the collimation parts of the instruments to aim at each other for observation, establishes the observation target direction of the wire edge and realizes the precise transmission of the wire direction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a total powerstation vertical axis precision alignment device, through install accurate displacement platform on the total powerstation carrying handle, settle sighting marks such as reflection of light ball prism and survey pin on accurate displacement platform, make total powerstation axle center and sighting mark axle center realize accurate alignment (the centering precision is superior to 0.1 mm), make the wire measure realize angle and distance synchronous observation, survey station and target are on same axle center, avoided the centering influence that instrument shafting error brought, further improve the wire measuring precision.

In order to solve the above problems existing in the prior art, the utility model discloses the technical scheme who adopts is:

a vertical axis precision alignment device of a total station comprises the total station, an XY axis precision displacement platform and an aiming mark.

The XY-axis precise displacement platform is connected with a carrying handle of the total station through a connector and comprises an X-axis fine adjustment knob and a Y-axis fine adjustment knob.

The collimation mark is connected to the XY axis precision displacement platform.

The utility model discloses an increase the mark of aiming at on original total powerstation for the wire is measured and is realized angle and distance synchronous observation.

Through increasing the accurate displacement platform of XY axle for the axis of aiming at the sign and the axis collineation of total powerstation, the axis coincidence of the two promptly, during the in-service use, only need adjust the total powerstation and aim at can.

Further, the connector includes top plate and lower side plate, top plate and lower side plate pass through the connecting rod and connect, the one end and the top plate of connecting rod are articulated, and the other end of connecting rod passes the lower side plate and is connected with the nut, through increasing the connector for the accurate displacement platform of XY axle is more stable with being connected of total powerstation, and top plate and lower side plate are tight the connector carrying handle and are pressed from both sides, then are connected top plate and lower side plate through the connecting rod, and the connector is pressed from both sides the carrying handle and is pressed from both sides tightly and connect stably this moment, can provide the stable support to the accurate displacement platform of XY axle, top plate and lower side plate all are equipped with the recess that corresponds with the connecting rod, and the connecting rod articulates in the recess of top plate, can put into the lower extreme of connecting rod from the opening part of lower side plate recess during the connection.

Further, the XY-axis precise displacement platform is connected with the upper side plate through screws, so that the XY-axis precise displacement platform and the upper side plate can not generate relative displacement after connection, a mounting threaded hole is formed in the middle of the XY-axis precise displacement platform and used for being connected with an alignment mark, and the XY-axis precise displacement platform consists of a working table, a base, a differential head, a locking device and crossed roller guide rails. The stroke of the minimum scale of 0.01mm can be adjusted in the X and Y directions through the driving of the precise differential head, and the maximum adjusting stroke can reach more than 10mm according to the size of the table top. The method is mainly applied to the fields of precision measurement such as mobile correction, laser displacement, detection and adjustment, optical calibration and the like.

Further, look after mark including the survey probe, reduce the nut, reduce the cylinder and embedded tightening is detained, it is the nut in the middle of the cylinder to reduce, and the both sides that reduce the cylinder are helicitic texture, and one of them helicitic texture is connected with the installation screw hole, and another helicitic texture is connected with the reduction nut, embedded tightening is detained and is located between the reduction nut and the reduction cylinder, and embedded tightening is detained and is equipped with "ten" word notch.

Furthermore, the sighting mark is a spherical prism, the spherical prism is connected with the XY-axis precise displacement platform through a connecting target seat, the bottom of the connecting target seat is provided with a thread matched with the mounting threaded hole, and the connecting target seat is connected with the XY-axis precise displacement platform in a magnetic type manner.

The utility model has the advantages that:

the utility model discloses an installation accurate displacement platform on the total powerstation carrying handle, settle sighting marks such as reflection of light ball prism and survey probe on accurate displacement platform, make total powerstation axle center and sighting target axle center realize accurate alignment (the centering precision is superior to 0.1 mm), make the wire measure realize angle and range synchronization and survey, survey station and target are on same axle center, have avoided the centering influence that instrument shafting error brought, further improve the wire measuring precision.

Drawings

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

FIG. 2 is a schematic view showing the connection between the XY-axis precision displacement stage and the sighting mark;

FIG. 3 is a schematic view of the connector;

FIG. 4 is a schematic structural diagram of an XY-axis precision displacement stage;

FIG. 5 is a schematic structural view of example 3;

FIG. 6 is a partial enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the structure of embodiment 4;

FIG. 8 is a partial enlarged view of portion B of FIG. 4;

FIG. 9 is a schematic view of a cross-hair;

fig. 10 is a schematic view of the principle of the cross-hair method.

1, a total station; 2-a connector; 21-upper side plate; 22-a lower side plate; 23-a connecting rod; 3-XY axis precision displacement platform; 31-mounting a threaded hole; 4-sighting mark; 411-shrink nut; 412-contracting the cylinder; 413-embedded tightening clasp; 414-stylus; 415-a ball head; 416-ball nut; 417-installing screw heads; 418-back plane.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and reference numerals.

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The terms "first," "second," "third," and the like are used solely to distinguish one from another as to indicate or imply relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

1.2 prior art relating to the present invention

1.2.1 technical solution of the prior art one

At present, the azimuth transmission of the short side in 10 meters mainly adopts a total station aiming method. The total station aiming method directly takes an observation instrument as an observation target, and avoids the influence of centering errors on angle transmission. The total station aiming method is the most effective method for carrying out short edge direction transmission and avoiding centering errors. The total station aiming method has the following principle:

according to the optical principle, when the focal length of the telescope is adjusted to infinity, a beam of parallel light parallel to the main optical axis is emitted. When two total stations telescope with short distance are used to aim each other and make their cross images coincide, and at this moment, the main optical axes of the two instruments are coincident or parallel, the collimation can be realized, as shown in fig. 9 (a) and (b), the collimation method is the total station collimation method.

When the direction is transmitted by the aiming method, the focus of the operation total station needs to be adjusted to infinity to realize parallel light conditions, and a light source (an autocollimation lamp) is adopted to illuminate a view field between an eyepiece of a telescope and a cross-shaped silk screen. Generally, three or more than three instruments work simultaneously in a triple tripod (observation pier) mode, a telescope cross wire of a transition point instrument is directly used as a survey station center and an aiming point center, and a survey station aiming target adopts a parallel light method, so that no centering error exists on the transition point, and the influence of a focusing error on an angle value is weakened. The direction of the last edge is finished by using the total station and a plane mirror (or a collimator, a right-angle prism) at the tail end to realize auto-collimation or collimation.

As shown in fig. 10, (1) each total station and collimator used are focused to infinity.

(2) And (3) arranging the total station at the turning points A, B and C respectively, and centering the points A and C according to a conventional method if the points A and C are fixed points.

(3) After the point A device is aimed at the target in the direction D, the reading is still focused to infinity (such as a star), and the rotating aiming part and the point B device are both aimed and collimated to be read. And then fixing the point A total station sighting part.

(4) And after the B-point instrument collimation part and the C-point device are rotated to aim and collimate, reading is carried out, and the B-point instrument collimation part is fixed.

(5) And (5) collimating and reading the instrument at the point C and the cross wire of the collimator at the point E, and thus completing the first half of return measurement.

(6) And (5) longitudinally rotating the C-point telescope, and collimating with the E-point collimator to read. Then aiming, collimating and reading with a point B device

The C-point instrument collimation part is fixed.

(7) And longitudinally rotating the telescope at the point B and reading the data after aiming by the instrument at the point C, and the same way is used for operating other instruments.

(8) The telescope at point A aims at the target at direction D according to the position after the longitudinal rotation and reads the target, and therefore the next half of survey and survey is completed.

Finally, the number of the upper and lower half measured returns of each turning angle is taken as a measured return result, and the azimuth angle at the last side is calculated according to the measured return result. And observing and calculating n measuring loops according to the precision requirement.

1.2.2 disadvantages of the first prior art

(1) The required instruments and equipment are more, the requirement on instrument operation is high, the number of workers to be operated is more, and the investment is large.

(2) The operation steps are complicated, the operation difficulty is high, and the use time is long. The technical requirements are high.

(3) The aiming target is not an entity aiming mark, so that the observation aiming is difficult to complete, and the angle observation and the azimuth transmission are not facilitated.

(4) In the aiming process of the aiming method, the requirement of the cross-hair image on focusing is high, the sighting axes of the telescope are not necessarily overlapped, and the azimuth transmission can be carried out only when the collimation requirement is met.

(5) The observation is a sight line parallel line, which is not a real target or a distance measuring prism, cannot complete distance measurement, and only can carry out azimuth angle transmission and coordinate transmission.

1.3 related to the present invention

1.3.1 technical solution of the second prior art

The transmission of the short edge azimuth is also called a total station internal (external) target method. The principle of the method is that a purpose-made inner target is installed on an illuminating knob of a field of view of a total station telescope and used as a collimation target, the installation precision (deviation from a sight axis) of the inner target is not more than 4' generally, or an outer target is installed on the instrument telescope (the target position is arranged in a plane formed by the sight axis of the instrument telescope and a vertical axis of the instrument or close to the plane), and a collimation center is consistent with the center of the instrument through forward and backward observation by a positive and backward mirror, so that the influence of centering errors is overcome. The whole observation program can adopt a conventional angle measurement method, which is beneficial to comparing the return measurement difference of a single angle between the return measurements, and can also adopt a semi-cyclic observation method, wherein the method is similar to a total station aiming method, only the aiming method is used for focusing at infinite distance, two instruments mutually aim at a cross wire image of a telescope of the other instrument, while an internal and external target method needs to focus respectively in each observation direction, and the aimed method is the center of an internal (external) target installed on the other instrument. When distance measurement is needed, the measurement target needs to be replaced by a prism.

1.3.2 disadvantages of the second prior art

The inner (outer) target method aims at the inner (outer) target on the instrument when sighting and observing, but the target needs to be changed into a distance measurement reflecting prism when measuring distance, after the observation aiming target is changed, the aiming target reduction position is inconsistent with the distance measurement target reduction position, and the error of an axis system of the aiming target causes the increase of the measurement centering error of the lead, thereby causing the increase of the measurement error of the lead.

Example 1:

as shown in fig. 1 and 2, a total station vertical axis precision alignment device comprises a total station 1, an XY axis precision displacement platform 3 and an aiming mark 4;

the XY-axis precise displacement platform 3 is connected with a carrying handle of the total station 1 through a connector 2, and the XY-axis precise displacement platform 3 comprises an X-axis fine adjustment knob and a Y-axis fine adjustment knob;

the sighting mark 4 is connected with the XY-axis precision displacement platform 3.

This application is through increasing sighting mark 4 on original total powerstation 1 for the wire is measured and is realized angle and distance synchronous observation.

Through increasing accurate displacement platform 3 of XY axle for the axis of sighting mark 4 and the axis of total powerstation 1 collineation, the axis coincidence of the two promptly, during the in-service use, only need adjust total powerstation 1 and aim at can.

The specific adjustment mode is as follows:

firstly, two total stations are arranged at the periphery of a total station 1 provided with an XY axis precision displacement platform 3 for intersection centering. The two instruments and the total station 1 form an angle of 90 degrees, and the distances are 5-6 meters and are approximately equal (the principle that a measuring needle 414 or a spherical prism lens ridge prism wire on the XY-axis precision displacement platform 3 can be clearly aligned is adopted). The projection total station is leveled precisely, and the focal length of an ocular lens is adjusted, so that the ocular lens can accurately aim at a measuring needle 414 or a prism wire arranged on an XY-axis precise displacement platform 3 on a carrying handle of the total station.

And secondly, arranging the total station 1 to be in a horizontal state, using a rendezvous total station to aim at the measuring needle at the left disc position of the total station 1, reading out the reading a1 of an instrument horizontal dial, rotating the total station 1 by 180 degrees to the right disc position, using the rendezvous total station to aim at the measuring needle, reading a2 of a water level dial, calculating the median a3= (a 1-a 2)/2 of the difference value of the dials twice, adjusting and fixing the rendezvous total station horizontal dial to a3, using the rendezvous total station to command an X-axis direction hand wheel of an XY-axis precision displacement platform 3 on the total station 1, enabling the measuring needle to accurately move to the center of an eyepiece silk of the rendezvous total station, rotating the total station 1 again, and repeating the operation according to the step until the measuring needle does not have visual displacement at the center of the eyepiece silk screen of the rendezvous total station, and finishing the adjustment of the measuring needle in the X-axis X-direction of the XY-axis precision displacement platform 3.

And thirdly, according to the method of the second step, using another rendezvous total station to adjust a hand wheel in the Y direction of the XY axis precision displacement platform 3 until no visual displacement (deviation) exists in the center of the cross-shaped silk screen of the eyepiece of the rendezvous total station at the measuring station, and at the moment, completing the adjustment of the measuring needle of the total station in the Y direction of the XY axis precision displacement platform 3.

And fourthly, on the basis of completing the second step and the third step, the total station 1 is freely rotated, so that the measuring needle on the total station does not have visual deviation at the center of an eyepiece cross wire net of the two intersected total stations (if the deviation exists, the steps are repeated), the vertical axis precision alignment of the measuring needle and the total station 1 is realized, the intersecting centering method can enable the measuring needle 414 (the center of the spherical prism wire net) on the XY precision displacement platform 3 to be precisely adjusted to the vertical axis of the total station 1, the vertical axis centering precision can reach within 0.1mm, the alignment target is coaxial with the total station, and the observation of the angle and the distance of the high-precision short-edge wire measurement is facilitated.

Example 2:

on the basis of embodiment 1, as shown in fig. 3 and 4, the connector 2 includes an upper side plate 21 and a lower side plate 22, the upper side plate 21 and the lower side plate 22 are connected by a connecting rod 23, one end of the connecting rod 23 is hinged to the upper side plate 21, and the other end of the connecting rod 23 penetrates through the lower side plate 22 to be connected with a nut.

By adding the connector 2, the connection between the XY-axis precision displacement platform 3 and the total station 1 is more stable.

The upper side plate 21 and the lower side plate 22 clamp the carrying handle of the connector 2, then the upper side plate 21 and the lower side plate 22 are connected through the connecting rod 23, at the moment, the connector 2 clamps and is stably connected with the carrying handle, and stable support can be provided for the XY-axis precise displacement platform 3.

The upper side plate 21 and the lower side plate 22 are both provided with grooves corresponding to the connecting rods 23, the connecting rods 23 are hinged to the grooves of the upper side plate 21, and the lower ends of the connecting rods 23 can be placed into the grooves of the lower side plate 22 from openings of the grooves during connection.

The XY-axis precise displacement platform 3 is connected with the upper side plate 21 through screws, and relative displacement between the XY-axis precise displacement platform 3 and the upper side plate 21 after connection is guaranteed not to occur.

And a mounting threaded hole 31 is formed in the middle of the XY-axis precision displacement platform 3, and the mounting threaded hole 31 is used for connecting the sighting mark 4.

The XY-axis precise displacement platform 3 consists of a working table, a base, a differential head, a locking device and a crossed roller guide rail. The stroke of the minimum scale of 0.01mm can be adjusted in the X and Y directions through the driving of the precise differential head, and the maximum adjusting stroke can reach more than 10mm according to the size of the table top. The method is mainly applied to the fields of precision measurement such as mobile correction, laser displacement, detection and adjustment, optical calibration and the like.

Example 3:

on the basis of the embodiment 2, as shown in fig. 5 to 6, the sighting mark 4 includes a measuring pin 414 (a tungsten steel gauge), a tightening nut 411, a tightening cylinder 412 and an embedded tightening buckle 413, the middle of the tightening cylinder 412 is provided with a nut, both sides of the tightening cylinder 412 are provided with screw structures, one of the screw structures is connected with the installation screw hole 31, the other screw structure is connected with the tightening nut 411, the embedded tightening buckle 413 is arranged between the tightening nut 411 and the tightening cylinder 412, the embedded tightening buckle 413 is provided with a cross-shaped notch, and the measuring pin 414 is clamped in the cross-shaped notch.

The measuring needle (tungsten steel needle gauge) is durable, deformation-resistant, good in glossiness and never rusts, and is widely applied to high-precision technical industries such as electronic machinery, ships, automobile manufacturing, aerospace, medical appliances and the like. The high-precision roundness can reach 0.0002mm, and the device can be processed into various diameter sizes according to different measurement precision requirements. As the target sighting mark 4, the target sighting mark is not easily influenced by sunlight irradiation, and a light and shade sighting phase error is formed.

Example 4:

on the basis of embodiment 2, as shown in fig. 7-8, the sighting mark 4 includes a tightening nut 411, an embedded tightening buckle 413, a measuring pin 414, a ball 415, a ball nut 416, a mounting screw 417 and a back plate 418, one end of the mounting screw 417 is in threaded connection with the mounting threaded hole 31, the other end of the mounting screw 417 is in threaded connection with the ball nut 416, the back plate 418 is an "L" shaped plate, the back plate 418 is sleeved on the ball nut 416 and is fastened through a bolt (the bottom of the back plate 418 is provided with a mounting hole, one side of the mounting hole is connected with two butt plates (no hatching is provided in fig. 7), when the connection is performed, the butt plates are pulled to enlarge the mounting hole in the middle, then the mounting hole is sleeved on the ball nut 416, then the two butt plates are connected through the bolt, at this time, the back plate 418 clamps the ball nut 416 to ensure the stability of the connection), the top of the mounting screw 417 is provided with an arc-shaped ball groove (for placing the ball 415), one end of the ball 415 is located between the mounting screw 417 and the mounting screw 417 is located between the mounting screw 417 and the tightening nut 417 and is provided with a tightening buckle 411, the tightening nut 415, the tightening nut 413 is provided with a cross-inserting groove 411, and the tightening buckle 413, and the tightening nut 413, the tightening nut 413.

When the ball head type measuring probe is installed, an installation screw head 417 is connected with an installation threaded hole 31, then a back plate 418 is sleeved on a ball head nut 416, then a ball head 415 penetrates through the ball head nut 416, then the ball head nut 416 is connected with the installation screw head 417, the ball body part of the ball head 415 is ensured to be positioned between the ball head nut 416 and the installation screw head 417 during connection, then an embedded tightening buckle 413 is placed in a tightening nut 411, the tightening nut 411 is connected with the ball head 415, the embedded tightening buckle 413 is positioned between the tightening nut 411 and the ball head 415, and finally the measuring probe 414 is connected to the embedded tightening buckle 413.

By providing a back plate 418, the stylus 414 is more easily observed.

Example 5:

on the basis of the embodiment 2, the sighting mark 4 is a spherical prism, and the spherical prism is connected with the XY-axis precision displacement platform 3 through a connecting target holder.

Advantages of the spherical prism: when a solid sphere is placed on the cylindrical magnetic target holder tangent to the solid sphere, the position of the sphere center is always kept unchanged no matter how the solid sphere is placed, and the solid sphere is always positioned on the vertical central axis of the cylindrical magnetic target holder. The magnetic target holder only needs the top surface of a cylinder tangent to the spherical prism to be flat and have a standard circle diameter. The tolerance of the outer diameter of the spherical prism after process control and high-precision processing can be guaranteed to be within 0.01-0.02mm, the coincidence degree of the reflection center and the spherical center of the spherical prism can be controlled to be within 0.03mm, namely the non-coincidence degree of the reflection center and the spherical center is better than 0.05mm. The spherical prism is widely used for the precise space three-dimensional positioning measurement of the laser tracker.

Example 6:

in the embodiment 5, the bottom of the connecting target seat is provided with threads matched with the mounting threaded hole 31.

Example 7:

on the basis of the embodiment 5, the connecting target holder is connected with the XY-axis precision displacement platform 3 in a magnetic attraction manner.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all falling within the technical solution of the present invention, all fall within the protection scope of the present invention.

Claims (9)

1. A total powerstation vertical axis precision alignment device which characterized in that: comprises a total station (1), an XY axis precision displacement platform (3) and an aiming mark (4);

the XY-axis precise displacement platform (3) is connected with a carrying handle of the total station (1) through a connector (2);

the collimation mark (4) is connected with the XY axis precision displacement platform (3).

2. The total station vertical axis precision alignment apparatus of claim 1, wherein: connector (2) include epipleural (21) and lower side plate (22), epipleural (21) and lower side plate (22) are connected through connecting rod (23), the one end and the epipleural (21) of connecting rod (23) are articulated, and the other end of connecting rod (23) passes lower side plate (22) and is connected with the nut.

3. The total station vertical axis precision alignment apparatus of claim 2, wherein: the upper side plate (21) and the lower side plate (22) are provided with grooves corresponding to the connecting rods (23), and the connecting rods (23) are hinged to the grooves of the upper side plate (21).

4. The total station vertical axis precision alignment apparatus of claim 1, wherein: and a mounting threaded hole (31) is formed in the middle of the XY-axis precise displacement platform (3), and the mounting threaded hole (31) is used for being connected with the sighting mark (4).

5. The total station vertical axis precision alignment apparatus of claim 4, wherein: the sighting mark (4) comprises a measuring pin (414), a tightening nut (411), a tightening cylinder (412) and an embedded tightening buckle (413);

the middle of the tightening column body (412) is provided with a nut, two sides of the tightening column body (412) are both provided with thread structures, one thread structure is connected with the mounting thread hole (31), and the other thread structure is connected with a tightening nut (411);

the embedded tightening buckle (413) is arranged between the tightening nut (411) and the tightening cylinder (412), and the embedded tightening buckle (413) is provided with a cross-shaped notch.

6. The total station vertical axis precision alignment apparatus of claim 4, wherein: the sighting mark (4) is a spherical prism, and the spherical prism is connected with the XY-axis precise displacement platform (3) through a connecting target seat.

7. The total station vertical axis precision alignment apparatus of claim 6, wherein: the bottom of the connecting target seat is provided with threads matched with the mounting threaded holes (31).

8. The total station vertical axis precision alignment apparatus of claim 6, wherein: the connecting target holder is connected with the XY axis precision displacement platform (3) in a magnetic type manner.

9. The total station vertical axis precision alignment apparatus of claim 4, wherein: the sighting mark (4) comprises a tightening screw cap (411), an embedded tightening buckle (413), a measuring pin (414), a ball head (415), a ball head nut (416), an installation screw head (417) and a back plate (418);

one end of the mounting screw head (417) is in threaded connection with the mounting threaded hole (31), and the other end of the mounting screw head (417) is in threaded connection with the ball nut (416);

the back plate (418) is an L-shaped plate, the back plate (418) is sleeved with the ball nut (416) and is fastened through a bolt, and an arc-shaped groove is formed in the top of the mounting screw head (417);

one end of the ball head (415) is positioned between the mounting screw head (417) and the ball head nut (416), and the other end of the ball head (415) penetrates through the ball head nut (416) and is connected with a tightening nut (411);

tightening nut (411) is connected with bulb (415), embedded tightening buckle (413) are located between tightening nut (411) and bulb (415), and embedded tightening buckle (413) is equipped with "ten" word notch, survey needle (414) block is in "ten" word notch.

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