阅读说明：本技术 一种激光跟踪仪平面坐标高精度放样装置及方法 (Laser tracker plane seat elevation precision lofting device and method ) 是由 陈文军 杨龙 郑亚军 王少明 袁建东 孙国珍 张旭东 张小东 于 2021-09-13 设计创作，主要内容包括：本发明涉及一种激光跟踪仪平面坐标高精度放样装置及方法。所述装置包括：基体,其设有靶球支撑部和容纳腔；底座,其设于基体外围,被配置为支撑基体,并与基体在竖向相对位置不变,在水平方向相对位置可变；划点组件,被配置为容纳于容纳腔内；水平调节部分,被配置为在竖向与底座相对位置可调；位置调节机构,包括横向位置调节装置和纵向位置调节装置；水平度显示仪,包括在基体的上表面设置的两个沿长度方向的中心线相互垂直的水平气泡仪,每个水平气泡仪的横向或纵向中心线都不经过另一个水平气泡仪。本发明能够精准刻划放样坐标,提升了粒子加速器使用激光跟踪仪在地面放样点的精度和效率。(The invention relates to a laser tracker plane seat elevation precision lofting device and method. The device comprises: a base body provided with a target ball support part and an accommodating cavity; the base is arranged on the periphery of the base body, is configured to support the base body, and has a vertical relative position unchanged and a horizontal relative position changeable with the base body; a scribing component configured to be accommodated in the accommodating cavity; a horizontal adjustment portion configured to be adjustable in vertical position relative to the base; the position adjusting mechanism comprises a transverse position adjusting device and a longitudinal position adjusting device; the levelness display instrument comprises two horizontal bubble instruments which are arranged on the upper surface of a base body and are vertical to each other along the center line of the length direction, and the transverse or longitudinal center line of each horizontal bubble instrument does not pass through the other horizontal bubble instrument. The method can accurately mark the lofting coordinate, and improves the accuracy and efficiency of lofting points on the ground by using the laser tracker of the particle accelerator.)

1. The utility model provides a laser tracker plane seat elevation precision lofting device which characterized in that, the device includes:

the target ball support part is configured to support the target ball, the accommodating cavity is positioned below the target ball support part, and the central axis of the accommodating cavity is coaxial with that of the support part;

the base is arranged on the periphery of the base body, is configured to support the base body, and has a vertical relative position unchanged and a horizontal relative position changeable with the base body;

a scribe point assembly configured to be received within the receiving cavity, a bottom of the scribe point assembly including a scribe point end configured to scribe a point at a loft position, the scribe point end coaxial with a central axis of the receiving cavity;

a horizontal adjusting portion configured to be adjustable in a vertical direction relative to the base to adjust a levelness of the base;

a position adjusting mechanism including a lateral position adjusting device and a longitudinal position adjusting device configured to adjust lateral and longitudinal positions of the base with the base as a support;

the levelness display instrument comprises two horizontal bubble instruments which are arranged on the upper surface of the base body and are vertical to each other along the central lines of the length direction, the two horizontal bubble instruments are used for monitoring the levelness of the base body in the horizontal adjusting process, and the transverse or longitudinal central line of each horizontal bubble instrument does not pass through the other horizontal bubble instrument.

2. The laser tracker flat bed elevation accuracy lofting device of claim 1, wherein the two horizontal bubblers are each disposed at an edge of the substrate.

3. The laser tracker flat seat elevation accuracy lofting device of claim 2, wherein the base is a regular tetrahedron, and two of the horizontal bubblers are respectively disposed at adjacent sides of the base.

4. The laser tracker flat bed high accuracy lofting device of any one of claims 1 to 3, wherein the center of the horizontal bubble gauge is at a distance of 50 ± 5mm from the center of the substrate.

5. The laser tracker flat seat elevation precision lofting device of any one of claims 1 to 3, wherein the horizontal adjustment part is a set of horizontal adjustment screw rods distributed around the periphery of the base to adjust the height of the base at different positions in a vertical screw direction, respectively; preferably, a group of the horizontal adjusting screw rods and the horizontal bubble instruments are in staggered distribution, namely a connecting line of the center of any one horizontal bubble instrument and the center of the base body does not intersect with a connecting line of any one horizontal adjusting screw rod to the center of the base body; preferably, the number of the horizontal adjusting screw rods is three, the shape of the base is a regular quadrangle, and the horizontal adjusting screw rods are respectively arranged at two adjacent corners of the base and the centers of opposite sides of the sides where the two corners are located; preferably, the lower end of the horizontal adjusting screw rod is conical; preferably, the transverse position adjusting device and the longitudinal position adjusting device are jacking mechanisms or screw mechanisms which penetrate through the base and axially correspond to the edges of the base body where the two horizontal bubble meters are located respectively.

6. The laser tracker flat sitting high accuracy lofting device of any one of claims 1 to 3, wherein the dotting assembly is a resiliently compressible assembly, preferably the dotting assembly comprises a dotting device and a resilient element, the lower end of the dotting device being the dotting end, the resilient element being such that its dotting end remains within the receiving cavity of the base when the dotting device is not depressed; preferably, the elastic element is a spring, and the scribing point end is a tip; preferably, the marking assembly further comprises a booster, the booster is arranged at the upper end of the marking device, the booster and the marking device are an integrated piece or an independent component, the booster comprises a pressing surface, and the elastic element is arranged between the marking device and the booster and is positioned below the pressing surface.

7. The laser tracker level height accuracy lofting device of claim 1, 2, 3, or 6, further comprising a target ball suction portion disposed below the target ball support and above the scoring point assembly; preferably, the target ball attracting portion includes a magnet, preferably a ring-shaped permanent magnet; preferably, the target ball adsorption part further comprises a limit clamp spring which limits the magnet in the vertical direction; preferably, the accommodating cavity comprises a group of accommodating holes with different diameters, and the target ball adsorption part and the scribing point assembly are respectively positioned at the different accommodating holes; preferably, the target ball supporting part is an arc surface of the top circumference of the accommodating cavity, and the arc surface is matched with the spherical surface of the target ball; further, the device also comprises a target ball, and the target ball is matched and installed with the target ball supporting part.

8. A method for lofting by using the laser tracker plane coordinate high precision lofting apparatus of any one of claims 1 to 7, the method comprising:

monitoring and judging the position degree of a substrate supporting the target ball through a laser tracker, and horizontally adjusting the substrate through a horizontal adjusting part until the position degree and the horizontal degree of the lofting device meet the precision requirement;

and marking point marks on the lofting surface through the marking component.

9. The method of lofting according to claim 8, further comprising:

placing the lofting device at an approximate position of lofting coordinates of the component to be mounted by referring to the coordinate position of the center of the target ball measured by the laser tracker;

when the position degree of the base body is adjusted to be within the precision requirement range, the reference laser tracker measures the plane position coordinate data of the center of the target ball placed on the target ball supporting part, and the coordinate position of the lofting device is moved to a lofting coordinate through the integral translation lofting device;

judging whether the levelness of the lofting device reaches the range of the level requirement through a levelness display instrument, and if the levelness of the lofting device exceeds the range, continuously adjusting the levelness of the lofting device until the levelness precision requirement is reached;

the plane coordinate data of the center of the target ball is measured by the monitoring laser tracker, whether the central coordinate position of the target ball base body reaches the range of the precision requirement of the lofting point or not is judged, if the central coordinate position of the target ball base body exceeds the range of the precision requirement, the position of the base body needs to be continuously adjusted until the precision requirement is reached, and the levelness of the lofting device is monitored and adjusted until the position degree and the levelness of the lofting device both meet the precision requirement.

10. A method of lofting according to claim 8 or 9, the method further comprising:

when the position and the levelness of the base body are adjusted until the levelness and the position degree of the lofting device meet the precision requirement, moving the laser tracker measuring target ball away, pressing the marking point assembly downwards, depicting a lofting coordinate on the installation base surface through the lower end of the marking point assembly, and finishing single-point lofting;

before adjusting the levelness and the position degree of the lofting device, the method further comprises the following steps:

measuring three-dimensional collimation control mesh points around the device to be installed by using a laser tracker; positioning the laser tracker by means of the three-dimensional collimation control mesh data, namely positioning the laser tracker in a global coordinate system;

and inquiring the geometric center of the lofting element and the plane coordinate value of the positioning of the lofting device relative to the global coordinate system according to the installation general diagram of the device to be installed, and establishing the element coordinate system of the lofting element by using measurement software.

Technical Field

The invention relates to the technical field of collimation measurement of particle accelerators, in particular to a device and a method for high-precision lofting of plane coordinates of a laser tracker.

Background

With the continuous improvement of the collimation installation precision of the particle accelerator element and the standardized collimation installation, the collimation installation of most accelerator elements can be completed only by matching a laser tracker with a three-dimensional collimation control network. In the collimated installation of a particle accelerator, there is a critical step of lofting the geometric center of the accelerator mounting components and the major geometric elements of the support system to the theoretical coordinate positions of the accelerator base mounting floor or embedment using a laser tracker. The measurement principle of the laser tracker is different from that of an optical measurement instrument, and the laser tracker cannot directly aim at a ground target point to perform coordinate lofting. Because the coordinate position measured by the laser tracker is in the center of the measuring target ball, the laser tracker target ball can not be directly used for drawing accurate position mark points on the ground, and the accurate position coordinate can be obtained by means of a device which can be matched and connected with the laser tracker target ball in the lofting process, and the coordinate mark points can be lofted on the ground.

The traditional method for lofting the ground position coordinates by using a laser tracker is characterized in that a projection point of the center of a target ball of the laser tracker is carved on an accelerator mounting base plane through a small hole in the center of a target seat by means of the target seat with a hole in the middle. There is a problem with lofting using this method: target seat contact lofting face, if there are factors such as debris bottom the lofting face unevenness or target seat, will lead to the target seat to produce an inclination error, the target ball is being supported to the target seat, because the thickness of target seat self and the target ball radius height of laser tracker, will make the inclination error of target seat produce the coordinate error of one-tenth magnification at laser tracker target ball center, and also can bring the error because of the centering of scriber and hole, the angle scheduling problem of control scriber through the process of target seat centre bore manual work lofting face coordinate center drawing point. The lofting error of the position coordinate point of the key element of the accelerator can directly influence the installation precision of the accelerator supporting system, and if the lofting error exceeds the designed adjustment range of the supporting system, the construction period of collimation installation can be seriously influenced, so that the collimation installation efficiency of the particle accelerator element is influenced.

Disclosure of Invention

In view of the above, the present invention is directed to a lofting apparatus and method for laser tracker plane coordinate elevation precision, so as to more accurately loft the laser tracker plane coordinate and improve the precision of the lofting coordinate.

The invention firstly provides a laser tracker plane coordinate high-precision lofting device, which comprises:

the target ball support part is configured to support the target ball, the accommodating cavity is positioned below the target ball support part, and the central axis of the accommodating cavity is coaxial with that of the support part;

the base is arranged on the periphery of the base body, is configured to support the base body, and has a vertical relative position unchanged and a horizontal relative position changeable with the base body;

a scribe point assembly configured to be received within the receiving cavity, a bottom of the scribe point assembly including a scribe point end configured to scribe a point at a loft position, the scribe point end coaxial with a central axis of the receiving cavity;

a horizontal adjusting portion configured to be adjustable in a vertical direction relative to the base to adjust a levelness of the base;

a position adjusting mechanism including a lateral position adjusting device and a longitudinal position adjusting device configured to adjust lateral and longitudinal positions of the base with the base as a support;

the levelness display instrument comprises two horizontal bubble instruments which are arranged on the upper surface of the base body and are vertical to each other along the central lines of the length direction, the two horizontal bubble instruments are used for monitoring the levelness of the base body in the horizontal adjusting process, and the transverse or longitudinal central line of each horizontal bubble instrument does not pass through the other horizontal bubble instrument.

According to one embodiment of the invention, the two horizontal bubblers are each arranged at an edge of the substrate.

According to one embodiment of the present invention, the substrate is a regular tetrahedron, and two horizontal bubblers are respectively disposed at two adjacent sides of the substrate.

According to one embodiment of the invention, the center of the level vial is located at a distance of 50 ± 5mm from the center of the substrate.

According to an embodiment of the present invention, the horizontal adjusting part is a group of horizontal adjusting screw rods, and the group of horizontal adjusting screw rods is distributed around the base to respectively vertically screw and adjust heights of different positions of the base; preferably, a group of the horizontal adjusting screw rods and the horizontal bubble instruments are in staggered distribution, namely a connecting line of the center of any one horizontal bubble instrument and the center of the base body does not intersect with a connecting line of any one horizontal adjusting screw rod to the center of the base body; preferably, the number of the horizontal adjusting screw rods is three, the shape of the base is a regular quadrangle, and the horizontal adjusting screw rods are respectively arranged at two adjacent corners of the base and the centers of opposite sides of the sides where the two corners are located; preferably, the lower end of the horizontal adjusting screw rod is conical; preferably, the transverse position adjusting device and the longitudinal position adjusting device are jacking mechanisms or screw mechanisms which penetrate through the base and axially correspond to the edges of the base body where the two horizontal bubble meters are located respectively.

According to one embodiment of the present invention, the dotting assembly is an elastically compressible assembly, preferably, the dotting assembly comprises a dotting device and an elastic element, the lower end of the dotting device is the dotting end, and the elastic element enables the dotting end to be kept in the containing cavity of the base body when the dotting device is not pressed down; preferably, the elastic element is a spring, and the scribing point end is a tip; preferably, the marking assembly further comprises a booster, the booster is arranged at the upper end of the marking device, the booster and the marking device are an integrated piece or an independent component, the booster comprises a pressing surface, and the elastic element is arranged between the marking device and the booster and is positioned below the pressing surface.

According to an embodiment of the present invention, the apparatus further comprises a target ball adsorbing portion disposed below the target ball supporting portion and above the scribing component; preferably, the target ball attracting portion includes a magnet, preferably a ring-shaped permanent magnet; preferably, the target ball adsorption part further comprises a limit clamp spring which limits the magnet in the vertical direction; preferably, the accommodating cavity comprises a group of accommodating holes with different diameters, and the target ball adsorption part and the scribing point assembly are respectively positioned at the different accommodating holes; preferably, the target ball supporting part is an arc surface of the top circumference of the accommodating cavity, and the arc surface is matched with the spherical surface of the target ball; further, the device also comprises a target ball, and the target ball is matched and installed with the target ball supporting part.

The invention also provides a lofting method by using the laser tracker plane coordinate high-precision lofting device, which comprises the following steps:

monitoring and judging the position degree of a substrate supporting the target ball through a laser tracker, and horizontally adjusting the substrate through a horizontal adjusting part until the position degree and the horizontal degree of the lofting device meet the precision requirement;

and marking point marks on the lofting surface through the marking component.

According to an embodiment of the invention, the method further comprises:

placing the lofting device at an approximate position of lofting coordinates of the component to be mounted by referring to the coordinate position of the center of the target ball measured by the laser tracker;

when the position degree of the base body is adjusted to be within the precision requirement range, the reference laser tracker measures the plane position coordinate data of the center of the target ball placed on the target ball supporting part, and the coordinate position of the lofting device is moved to a lofting coordinate through the integral translation lofting device;

judging whether the levelness of the lofting device reaches the range of the level requirement through a levelness display instrument, and if the levelness of the lofting device exceeds the range, continuously adjusting the levelness of the lofting device until the levelness precision requirement is reached;

the plane coordinate data of the center of the target ball is measured by the monitoring laser tracker, whether the central coordinate position of the target ball base body reaches the range of the precision requirement of the lofting point or not is judged, if the central coordinate position of the target ball base body exceeds the range of the precision requirement, the position of the base body needs to be continuously adjusted until the precision requirement is reached, and the levelness of the lofting device is monitored and adjusted until the position degree and the levelness of the lofting device both meet the precision requirement.

According to an embodiment of the invention, the method further comprises:

when the position and the levelness of the base body are adjusted until the levelness and the position degree of the lofting device meet the precision requirement, moving the laser tracker measuring target ball away, pressing the marking point assembly downwards, depicting a lofting coordinate on the installation base surface through the lower end of the marking point assembly, and finishing single-point lofting;

before adjusting the levelness and the position degree of the lofting device, the method further comprises the following steps:

measuring three-dimensional collimation control mesh points around the device to be installed by using a laser tracker; positioning the laser tracker by means of the three-dimensional collimation control mesh data, namely positioning the laser tracker in a global coordinate system;

and inquiring the geometric center of the lofting element and the plane coordinate value of the positioning of the lofting device relative to the global coordinate system according to the installation general diagram of the device to be installed, and establishing the element coordinate system of the lofting element by using measurement software.

According to the device and the using method for laser tracker plane position coordinate high-precision lofting, provided by the invention, the coordinate lofting error caused by factors such as unevenness of a particle accelerator base mounting plane can be effectively eliminated through the designed horizontal adjusting part, the point scriber embedded in the device can rapidly loft the projection position coordinate of the laser tracker measuring target ball center on the horizontal plane with higher precision, the error caused by lofting by using a traditional method is reduced, and the accuracy and the efficiency of lofting on the particle accelerator mounting plane by using the laser tracker can be improved.

Drawings

FIG. 1 is a schematic top view of a laser tracker plane coordinate high-precision lofting apparatus according to an embodiment of the present invention;

FIG. 2 is an axial half-section schematic view of a laser tracker plane coordinate high-precision lofting device according to an embodiment of the invention;

FIG. 3 is a schematic three-dimensional structure diagram of a laser tracker plane coordinate high-precision lofting device with target balls placed therein according to an embodiment of the invention;

FIG. 4 is a schematic diagram of a laser tracker level accuracy lofting device and a laser tracker lofting according to an embodiment of the present invention;

reference numerals: the device comprises a base 1, a base body 2, a horizontal adjusting screw rod 3, a horizontal bubble 4, a horizontal position adjusting device 5, a longitudinal position adjusting device 6, a measuring reference cambered surface 7, an annular permanent magnet 8, a point marker 9, a booster 10, a spring 11, a limiting clamp spring 12, a target ball 13 and a laser tracker 14.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

As shown in fig. 1 to 4, the present invention firstly proposes a laser tracker plane coordinate high-precision lofting apparatus, which includes:

the target ball support part is configured to support the target ball, the accommodating cavity is positioned below the target ball support part, and the central axis of the accommodating cavity is coaxial with that of the support part;

the base 1 is arranged on the periphery of the base body, is configured to support the base body, and has a vertical relative position unchanged and a horizontal relative position changeable with the base body;

a scribe point assembly configured to be received within the receiving cavity, a bottom of the scribe point assembly including a scribe point end configured to scribe a point at a loft position, the scribe point end coaxial with a central axis of the receiving cavity;

a horizontal adjusting portion configured to be adjustable in a vertical direction relative to the base to adjust a levelness of the base;

a position adjusting mechanism including a lateral position adjusting device 5 and a longitudinal position adjusting device 6 configured to adjust lateral and longitudinal positions of the base body 2 with the base 1 as a support;

the levelness display instrument comprises two horizontal bubble instruments 4 which are arranged on the upper surface of the base body and are vertical to each other along the central line of the length direction, and the two horizontal bubble instruments 4 are used for monitoring the levelness of the base body in the horizontal adjusting process, and the transverse or longitudinal central line of each horizontal bubble instrument 4 does not pass through the other horizontal bubble instrument.

According to the technical scheme, the base body is adjusted by adjusting the base or taking the base as a support, so that the large-amplitude disturbance to the base body can be reduced as much as possible, and the measurement and lofting precision is improved; the design of the levelness display instrument enables the levelness display to reflect the flatness of the whole upper surface of the matrix as much as possible, the flatness is not limited to be centralized in a single direction or a certain position locally, the flatness is monitored simultaneously in two different directions and staggered positions, and the flatness is measured and further adjusted in a higher-precision mode.

According to one embodiment of the invention, two horizontal bubblers 4 are each provided at the edge of the substrate 2.

During horizontal adjustment, the horizontal bubble instrument 4 has larger moving amplitude at the edge of the base body 2 than at the center, so that the horizontal bubble instrument 4 can have better sensitivity, and if horizontal adjustment is carried out, the arrangement of the horizontal bubble instrument 4 far away from the center of the base body 2 can capture a smaller change value of the whole base body 2, which is significant for application occasions with extremely high precision requirements, because a small measurement error is very likely to cause larger adverse results, and the horizontal bubble instrument is particularly used in medical equipment in human body treatment.

According to one embodiment of the invention, the base body 2 is a regular tetrahedron, and two horizontal bubblers 4 are respectively arranged at two adjacent edges of the base body 2.

However, the distance between the horizontal bubble instrument 4 and the center of the substrate 2 cannot be too large, otherwise, the overall structure is too large and too numerous, the processing precision is not well guaranteed, and the cost is high.

According to one embodiment of the invention, the center of the level bubble vial 4 is spaced 50 ± 5mm from the center of the substrate 2.

According to an embodiment of the present invention, the horizontal adjusting part is a horizontal adjusting screw rod 3, the horizontal adjusting screw rods 3 are a group, and the group of horizontal adjusting screw rods 3 is distributed around the base 1 to screw the height of the base 1 at different positions in the vertical direction.

Preferably, the horizontal adjustment screws 3 and the horizontal bubblers 4 are arranged in a staggered manner, i.e. the line connecting the center of any one horizontal bubbler 4 and the center of the substrate 2 does not intersect the line connecting any one horizontal adjustment screw 3 to the center of the substrate 2.

In the circumferential direction taking the center of the base body 2 as the center of a circle, the two horizontal bubble meters 4 and the plurality of horizontal adjusting screw rods 3 are in staggered distribution, namely the connecting line of the center of any one horizontal bubble meter 4 and the center of the base body 2 is not intersected with the connecting line from any one horizontal adjusting screw rod 3 to the center of the base body 2, so that the adjustment and display are distributed in a staggered mode as much as possible, and the adjustment precision of the whole base body 2 can be determined more accurately instead of local adjustment.

Preferably, the number of the horizontal adjusting screw rods 3 is three, the shape of the base 1 is a regular quadrangle, and the horizontal adjusting screw rods 3 are respectively arranged at two adjacent corners of the base 1 and the centers of opposite sides of the two corners.

Preferably, the lower end of the horizontal adjustment screw 3 is tapered.

Preferably, the transverse position adjusting device 5 and the longitudinal position adjusting device 6 are tightening mechanisms or screw mechanisms which penetrate through the base 1 and axially correspond to the edges of the base body 2 where the two horizontal bubblers 4 are located respectively.

Preferably, the transverse position adjusting device 5 and the longitudinal position adjusting device 6 are tightening mechanisms or screw mechanisms, which penetrate through the base 1 and axially correspond to the edges of the base body where the two horizontal bubblers 4 are located. Therefore, the position adjusting device is close to the horizontal bubble instrument 4 as much as possible, and the display of the horizontal bubble instrument 4 is not influenced during the position adjustment.

According to one embodiment of the invention, the dotting element is an elastically compressible element.

Further, the dotting assembly comprises a dotting device 9 and an elastic element, and the lower end of the dotting device 9 is the dotting end.

According to one embodiment of the invention, the scribe point end is a pointed end.

According to one embodiment of the invention, the end of the scriber is a scriber with a thickness of about 0.05 mm.

Preferably, the scribing point assembly further comprises a booster 10, and the booster can make the pressing more convenient and labor-saving and can apply force easily. The booster 10 is provided at the upper end of the marker 9, and may be a member having a large area. The booster 10 and the marker 9 are an integral piece or separate components. The booster 10 includes a pressure face for applying force. The elastic element is arranged between the marker 9 and the booster 10 and is positioned below the pressing surface.

As shown in fig. 1 to 4, the dotting device 9 is a cylinder, the lower end of the dotting device is in a taper shape, the booster 10 is in a thin circular truncated cone shape, and the area of the circular truncated cone is larger than the cross section of the cylinder.

According to an embodiment of the present invention, the apparatus further comprises a target ball attracting portion for attracting the target ball so as to prevent the target ball from rolling off. The target ball adsorption part is arranged below the target ball supporting part and is positioned above the point drawing component.

Preferably, the target ball attracting portion is a magnetic attracting member comprising a magnet, preferably a ring-shaped permanent magnet 8.

Preferably, the target ball adsorption part further includes a limit circlip 12 which limits the annular permanent magnet 8 in the vertical direction.

Preferably, the accommodating cavity comprises a group of accommodating holes with different diameters, the target ball adsorption part and the marking assembly are respectively positioned at the different accommodating holes, and the end parts of the target ball adsorption part and the marking assembly are respectively limited by steps.

Preferably, the target ball supporting part is an arc surface of the circumference of the top of the accommodating cavity, namely a measurement reference arc surface 7 as shown in the figure, and the arc surface is matched with the spherical surface of the target ball.

Preferably, the material of the laser tracker plane coordinate high-precision lofting device base body 1 can be 304 stainless steel.

Further, the lofting device also comprises the target ball 13, and the target ball 13 is installed in cooperation with the target ball supporting part.

The embodiment of the invention also provides a use method of the laser tracker plane coordinate high-precision lofting device, the assembly and use schematic diagram of the device is shown in figure 4, and the method mainly comprises the following steps:

monitoring and judging the position degree of a substrate supporting the target ball through a laser tracker, and horizontally adjusting the substrate through a horizontal adjusting part until the position degree and the horizontal degree of the lofting device meet the precision requirement;

and marking point marks on the lofting surface through the marking component.

According to an embodiment of the invention, the method further comprises:

placing the lofting device at an approximate position of lofting coordinates of the component to be mounted by referring to the coordinate position of the center of the target ball measured by the laser tracker;

when the position degree of the base body is adjusted to be within the precision requirement range, the reference laser tracker measures the plane position coordinate data of the center of the target ball placed on the target ball supporting part, and the coordinate position of the lofting device is moved to a lofting coordinate through the integral translation lofting device;

judging whether the levelness of the lofting device reaches the range of the level requirement through a levelness display instrument, and if the levelness of the lofting device exceeds the range, continuously adjusting the levelness of the lofting device until the levelness precision requirement is reached;

the plane coordinate data of the center of the target ball is measured by the monitoring laser tracker, whether the central coordinate position of the target ball base body reaches the range of the precision requirement of the lofting point or not is judged, if the central coordinate position of the target ball base body exceeds the range of the precision requirement, the position of the base body needs to be continuously adjusted until the precision requirement is reached, and the levelness of the lofting device is monitored and adjusted until the position degree and the levelness of the lofting device both meet the precision requirement.

According to an embodiment of the invention, the method further comprises:

when the position and the levelness of the base body are adjusted until the levelness and the position degree of the lofting device meet the precision requirement, moving the laser tracker measuring target ball away, pressing the marking point assembly downwards, depicting a lofting coordinate on the installation base surface through the lower end of the marking point assembly, and finishing single-point lofting;

before adjusting the levelness and the position degree of the lofting device, the method further comprises the following steps:

measuring three-dimensional collimation control mesh points around the device to be installed by using a laser tracker; positioning the laser tracker by means of the three-dimensional collimation control mesh data, namely positioning the laser tracker in a global coordinate system;

and inquiring the geometric center of the lofting element and the plane coordinate value of the positioning of the lofting device relative to the global coordinate system according to the installation general diagram of the device to be installed, and establishing the element coordinate system of the lofting element by using measurement software.

According to the device and the using method for laser tracker plane position coordinate high-precision lofting, provided by the invention, the coordinate lofting error caused by factors such as unevenness of a particle accelerator base mounting plane can be effectively eliminated through the designed horizontal adjusting part, the point scriber embedded in the device can rapidly loft the projection position coordinate of the laser tracker measuring target ball center on the horizontal plane with higher precision, the error caused by lofting by using a traditional method is reduced, and the accuracy and the efficiency of lofting on the particle accelerator mounting plane by using the laser tracker can be improved.

Example 1

The embodiment of the invention discloses a device for high-precision lofting of plane coordinates of a laser tracker, which is shown in figures 1 to 4.

The base 1 and the base body 2 of the laser tracker plane coordinate high-precision lofting device are made of 304 stainless steel, the shapes of the base 1 and the base body 2 are all equilateral quadrilateral structures, and each corner of each equilateral quadrilateral of the base body 2 is a chamfer structure.

In the laser tracker plane coordinate high accuracy lofting device base 1 wherein adjacent two angles and the opposite side center department on this two angles place limit, be provided with 3 horizontal adjustment hob 3 that can manually adjust altogether, the material of horizontal adjustment hob 3 is 304 stainless steel, and through threaded hole connection between the base 1, the upper end is circular anti-skidding knob structure, through the anti-skidding knob of three horizontal adjustment hob 3 of manual rotation respectively in the horizontal adjustment process, in order to carry out the relative vertical direction's between different positions department horizontal adjustment hob 3 and the base 1 removal, in order to carry out horizontal adjustment to the base, and base 1 again with base member 2 in vertical direction synchronous motion, finally reached the horizontal adjustment to base member 2.

The lower end of the horizontal adjusting screw rod 3 is of a conical structure, so that the horizontal adjusting screw rod can be prevented from sliding with the ground in the adjusting process.

Two horizontal bubble instruments 4 with the central lines perpendicular to each other along the length direction are arranged on the upper surface of the base body 2, and the principle of the bubble level instrument is that the bubble is in a glass tube and can be always kept at the highest position, so that the bubble level instrument is used for monitoring the levelness of the base body 2 in the horizontal adjusting process and guiding the horizontal adjustment of the three horizontal adjusting screw rods 3. The two horizontal bubble meters 4 are respectively arranged at the edge of the base body 2 as far as possible, namely, are arranged at the position far away from the center of the base body 2, the two horizontal bubble meters 4 do not intersect, and the transverse or longitudinal center line of each horizontal bubble meter 4 does not pass through the other horizontal bubble meter. Preferably, two horizontal bubblers 4 are provided at adjacent sides of the substrate 2, respectively.

During horizontal adjustment, the horizontal bubble instrument 4 has larger moving amplitude at the edge of the base body 2 than at the center, so that the horizontal bubble instrument 4 can have better sensitivity, and if horizontal adjustment is carried out, the arrangement of the horizontal bubble instrument 4 far away from the center of the base body 2 can capture a smaller change value of the whole base body 2, which is significant for application occasions with extremely high precision requirements, because a small measurement error is very likely to cause larger adverse results, and the horizontal bubble instrument is particularly used in medical equipment in human body treatment.

However, the distance from the center of the horizontal bubble instrument 4 to the center of the substrate 2 cannot be too large, otherwise, the overall structure is too large and too numerous, the processing precision is not well guaranteed, and the cost is high, so in this embodiment, the distance from the center of the horizontal bubble instrument 4 to the center of the substrate 2 is 50 mm.

In this embodiment, in the circumferential direction with the center of the base body 2 as the center, the two horizontal bubble meters 4 and the three horizontal adjusting screw rods 3 are in staggered distribution, that is, the connecting line of the center of any one horizontal bubble meter 4 and the center of the base body 2 is not intersected with the connecting line from any one horizontal adjusting screw rod 3 to the center of the base body 2, so that the adjustment and display are distributed in staggered distribution as much as possible, and the adjustment precision of the whole base body 2 can be determined more accurately, rather than local adjustment.

Three sides of the base 1 are provided with position adjusting mechanisms capable of performing bidirectional fine adjustment on the base body 2, wherein the transverse position adjusting device 5 adjusts the transverse position coordinates of the base body 2 in an opposite vertex mode, and the longitudinal position adjusting device 6 adjusts the longitudinal position coordinates of the base body 2 in a single screw rod push-pull mode.

In the embodiment, the axial directions of the transverse position adjusting device 5 and the longitudinal position adjusting device 6 respectively correspond to the substrate sides where the two horizontal bubblers 4 are located, so that the position adjusting device and the horizontal bubblers 4 are close to each other as much as possible, and the display of the horizontal bubblers 4 is not influenced during position adjustment.

An annular boss is arranged at the center of the upper surface of the base body 2, a measurement reference cambered surface 7 which can be precisely matched and connected with a measurement target ball of the laser tracker is arranged at the inner side of the center of the annular boss in a concave mode, and the measurement reference cambered surface 7 is used for precisely matching and connecting the base body 2 and the measurement target ball 12 of the laser tracker in the lofting process.

The vertical central axis of the base body 2 is provided with 3 layers of stepped through holes with large top and small bottom, the through hole at the uppermost layer is provided with an annular permanent magnet 8, and the annular permanent magnet 8 is used for magnetically attracting a measuring target ball of the laser tracker. A clamping groove is formed in the through hole and in the upper side of the annular permanent magnet 8, a limiting clamp spring 12 is installed in the clamping groove, and the limiting clamp spring 12 is used for limiting the vertical position of the annular permanent magnet 8. A booster 10 and a point drawing device 9 are respectively arranged in two layers of through holes at the lower part of the annular permanent magnet 8. The lower end of the marker 9 had a needle-like structure with a thickness of 0.05mm, and the processing material was cemented tungsten carbide. A booster 10 is arranged at the upper end part of the marking device 9, and the marking device 9 is used for determining ground marking points after lofting coordinates through a laser tracker; the booster 10 is used for boosting when a marker is used to mark a point on a loft plane. A spring 11 is arranged between the periphery of the marker 9 and the lower bottom surface of the booster 10 and is used for compressing and rebounding the marker 9 and the booster 10 in the lofting process.

Example 2

The embodiment provides a use method of a laser tracker plane coordinate high-precision lofting device, which is described by taking lofting of key points of a magnet and a support system of a synchrotron of a heavy ion therapy device on a synchrotron installation base surface as an example by adopting the laser tracker plane seat high-precision lofting device provided by the embodiment 1, and can comprise the following steps:

step S1: the laser tracker 14 is located at the site of the synchrotron of the heavy ion therapy apparatus. The laser tracker 14 is freely set up, and the erection position needs to meet the requirement that enough three-dimensional collimation control mesh points (generally more than 8 control mesh points with different planes) in the range of about 10m can be measured at the same measuring station, and the lofting point on the ground can be measured under the condition that the pitch angle of the measuring head of the laser tracker is smaller.

Step S2: measuring three-dimensional collimation control dots on the ground and the wall surface within about 10m around the synchrotron of the heavy ion treatment device by using a laser tracker 14; positioning the laser tracker 14 by using a UMSN (Unified Spatial Network analysis) module in SA (Spatial Analyzer) measurement software and by using three-dimensional control Network data of the heavy ion treatment device, namely positioning the laser tracker 14 in a global coordinate system of the heavy ion treatment device;

step S3: inquiring a plane coordinate value of a geometric center of the lofting element and a mounting positioning hole of the support system relative to a global coordinate system of the heavy ion treatment device according to the mounting general diagram of the heavy ion treatment device, and establishing an element coordinate system of the lofting element by using SA measurement software;

step S4: placing a measurement target ball 13 of a laser tracker on the measurement reference arc surface 7 of the invention, and monitoring the lofting coordinate of a lofting element in an element coordinate system by using the real-time dynamic monitoring function of the laser tracker 14 in SA measurement software; the present lofting apparatus is moved to the approximate position of the lofting coordinates of the heavy ion therapy unit synchrotron-mounted ground member (within about 1mm of abscissa and ordinate error) by measuring the coordinate position of the center of the target sphere 13 with reference to a laser tracker.

Step S5: refer to two level control bubble appearance 4 of this device base member 2 upper surface, the levelness of monitoring and judgement base member 2, through referring to the bubble position of level bubble appearance 4, the level control screw rod 3 of manual regulation carries out the level control of base 1.

Step S6: the horizontal adjustment of the substrate 2 of the device is carried out to within the precision requirement range (0.5mm/m), the plane position coordinate data of the center of the laser tracker measuring target ball 13 placed on the measuring reference cambered surface 7 of the device is referred again, the transverse position adjusting device 5 and the longitudinal position adjusting device 6 are respectively adjusted, and the center of the substrate 2 is finely adjusted to the lofting coordinate.

Step S7: and monitoring the two horizontal adjusting bubbles 4 on the upper surface of the base body 2 of the device again, judging whether the horizontal adjustment of the base body 2 of the device is within the horizontal requirement range, and if the horizontal adjustment is beyond the range, continuing to adjust the levelness of the base 1 according to the step S5 until the horizontal accuracy requirement (0.5mm/m) is met.

Step S8: and monitoring the plane coordinate data of the center of the measurement target ball 13 of the laser tracker placed on the measurement reference arc surface 7 of the device again, judging whether the center coordinate position of the substrate 2 of the device reaches the range (0.1mm) of the precision requirement of the lofting point, and if the center coordinate position exceeds the range of the precision requirement, continuously translating and adjusting the position of the substrate 2 according to the step S6 until the precision requirement is reached.

Step S9: repeating the steps S7 and S8 until the levelness and the position degree of the device meet the precision requirement; the laser tracker measurement target ball 13 is removed from the measurement reference cambered surface 7, the booster 10 arranged at the upper end of the point drawing device 9 arranged in the middle through hole of the device is pressed downwards by a thumb, and the lofting coordinate is carved on the ground of the installation foundation by the needle-shaped structure at the lower end of the point drawing device 9. After the thumb is moved away from the booster 10, the marking point device 9 rebounds to the original position through the spring 11 arranged between the marking point device 9 and the booster 10, and the single-point lofting work is completed.

Step S10: other coordinates are lofted according to the method described in steps S6-S9.

According to the laser tracker plane seat elevation precision lofting device provided by the embodiment of the invention, the lofting device can be adjusted to a high-precision horizontal position through a group of horizontal adjusting screw rods arranged on the base of the device and a horizontal bubble instrument arranged on the surface of the base body of the device, so that the position coordinate lofting point error caused by the factors such as unevenness of the installation plane of the particle accelerator in the prior art is eliminated.

The laser tracker ground position coordinate high-precision lofting device of the embodiment of the invention is provided with a press type scriber in the vertical projection direction of the central point of the arc surface contacted with the target ball of the laser tracker, the end part of the scriber is a scriber with the thickness of about 0.05mm, after the position coordinate needing lofting is determined by the laser tracker, the position coordinate projection point of the center of the target ball of the laser tracker can be scribed on the installation base ground or an embedded part of a particle accelerator with the precision of less than 0.2mm only by pressing a booster arranged at the top of the scriber with a thumb, thereby overcoming the defects that the traditional lofting method using the laser tracker ground position coordinate is performed by means of a target seat with a hole opened in the middle, the projection point of the center of the target ball of the laser tracker is scribed on the installation base plane of the accelerator through a small hole in the center of the target seat, and the lofting performed by using the method has a problem that the target seat is contacted with the lofting surface, if the lofting surface is uneven or the bottom of the target seat is provided with sundries and other factors, the target seat generates an inclination error, the target seat supports a target ball, because the thickness of the target seat and the radius height of the target ball of the laser tracker can enable the inclination error of the target seat to generate a coordinate error which is amplified in the center of the target ball of the laser tracker, and the process of manually drawing points at the center of the coordinates of the lofting surface through the center hole of the target seat can also bring errors due to the centering of a scriber and a hole, the control of the angle of the scriber and other problems. ) The error caused by the marking point improves the precision and the efficiency of the particle accelerator for using the laser tracker to put the sampling point on the ground.

According to the laser tracker ground position coordinate high-precision lofting device provided by the embodiment of the invention, the spring device and the limiting structure are arranged between the scriber and the booster, only when the booster is used for scribing, the scriber of the scriber can compress the spring to extend out of the bottom of the base body, and the scriber is clamped inside the base body of the laser tracker plane coordinate high-precision lofting device through the limiting structure and the spring arranged in the middle of the base body at ordinary times, so that the scriber and the lofting device are designed into a whole, namely the precision matching performance between the lofting device and the scriber is increased, and the messy loss of components of the lofting device can be avoided. The whole device is compact in design structure, convenient and fast to use, and can be widely applied to the technical field of collimation measurement of particle accelerators by using a laser tracker, and certainly not excluded from being applied to other occasions.

In conclusion, the device for high-precision lofting of the plane position coordinates of the laser tracker and the using method thereof provided by the embodiment of the invention can effectively eliminate coordinate lofting errors caused by factors such as unevenness of a particle accelerator base mounting plane and the like through the designed horizontal reference bubbles and the horizontal adjusting mechanism, the point marker embedded in the device can quickly loft the projection position coordinates of the center of the target ball on the horizontal plane measured by the laser tracker with the precision better than 0.2mm, and reduce errors caused by lofting by using a traditional method, and the use of the device can improve the accuracy and the efficiency of lofting on the particle accelerator mounting plane by using the laser tracker.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In addition, in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing embodiments are merely illustrative of the present invention, and various components and devices of the embodiments may be changed or eliminated as desired, not all components shown in the drawings are necessarily required, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, and all equivalent changes and modifications based on the technical solutions of the present invention should not be excluded from the scope of the present invention.