Reflection ball measuring support and laser tracking measuring equipment

Abstract

The utility model belongs to the technical field of measuring equipment, and discloses a reflection ball measuring support and laser tracking measuring equipment. The reflection ball measuring support comprises a base and a supporting piece, a groove is formed in the base in the first direction, the groove is provided with two groove walls oppositely arranged in the second direction, a reflection ball is arranged between the two groove walls of the groove, and the reflection ball is fixedly arranged in the groove in an angle-adjustable mode; the supporting piece is arranged on at least one side of the base in the third direction, the side, away from the base in the third direction, of the supporting piece is a supporting face, and the highest point of the peripheral wall of the reflection ball located on the same side of the supporting piece and the supporting face are arranged on the same plane. The reflection ball measuring support can increase the stability of the reflection ball at the sampling point position, improves the measuring precision and the measuring efficiency, can adjust the measuring angle, and is wider in measuring range.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a reflection sphere measuring bracket and a laser tracking measuring device. Background Art

[0002] A laser tracking measuring device is an instrument used for measuring, positioning, and tracking a target object. It is a non-contact full-automatic tracking measuring device and is often applied to large-scale precision manufacturing fields such as aerospace.

[0003] Currently, a laser tracking measuring device includes a laser tracker and a reflection sphere. It realizes multi-combination measurement of points by marking the coordinates of the center point of the reflection sphere. During use, the laser tracker is fixed at a fixed position, and the reflection sphere is arranged on the target object. The reflection sphere reflects the received laser back to the laser tracker, and the laser tracker calculates based on the reflected laser and obtains the position coordinates of the reflection sphere, thereby measuring the position of the target object.

[0004] During the measurement process, the reflection sphere is mainly realized by being held by an operator or supported and fixed by arranging a mounting seat at the sampling point. When measuring with the reflection sphere held by hand, due to the factor of human body jitter, it has a certain impact on the measurement result. Generally, when the RMS (monotonic rate scheduling) at the sampling point exceeds 0.07, the coordinates of this point will not be recorded, which will lead to the problem of no coordinates at this sampling point, thus affecting the fitting determination of the position of the entire target object. When measuring by limiting the reflection sphere through the mounting seat, when the mounting seat is only limited to carrying the reflection sphere, it is necessary to ensure that the placement plane of the reflection sphere is horizontal to avoid the reflection sphere from falling, resulting in a limited measurement range; when the mounting seat fixes the reflection sphere by bonding or the like, its reflection angle of the reflection sphere cannot be adjusted, which will also lead to a limited measurement range.

[0005] Therefore, there is an urgent need for a reflection sphere measuring bracket and a laser tracking measuring device to solve the above technical problems. Summary of the Utility Model

[0006] An object of the utility model is to provide a reflection sphere measuring bracket, which can increase the stability of the reflection sphere at the sampling position, improve the measurement accuracy and measurement efficiency, and can adjust the measurement angle, with a wider measurement range.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The reflection sphere measuring bracket includes:

[0009] A base, which is provided with a groove along a first direction. The groove has two groove walls oppositely arranged along a second direction. The reflection sphere is arranged in the groove, and the reflection sphere is fixedly arranged between the two groove walls of the groove with adjustable angle.

[0010] The support member is disposed on at least one side of the base along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. The side of the support member away from the base along the third direction is the support surface, and the highest point of the outer peripheral wall of the reflection sphere on the same side as the support member is arranged in the same plane as the support surface.

[0011] Optionally, the base includes a bottom wall and two side walls. The two side walls are oppositely disposed at both ends of the bottom wall along the second direction, and the bottom wall and the two side walls enclose to form the groove.

[0012] Optionally, the base further includes a protection part. The protection part is disposed on one side of the bottom wall along the third direction, and the support member is disposed on the other side of the base along the third direction. The protection part is used to protect the reflection sphere.

[0013] Optionally, the dimension of the protection part along the first direction is smaller than the dimension of the side wall along the first direction.

[0014] Optionally, the outer peripheral wall of the reflection sphere abuts against the groove wall, and the reflection sphere is configured to be rotatable by an external force to adjust the angle.

[0015] Optionally, the dimension of the groove along the second direction is not greater than the diameter of the reflection sphere.

[0016] Optionally, two installation grooves are respectively provided on the two groove walls in a one-to-one correspondence, and the two installation grooves are coaxially arranged. The outer peripheral wall of the reflection sphere is connected with the installation grooves in a matching manner.

[0017] Optionally, the shape of the installation groove is the same as the shape of the outer peripheral wall of the reflection sphere.

[0018] Optionally, at least two support members are provided at intervals, and the highest point of the outer peripheral wall of the reflection sphere on the same side as the support member and the support surfaces of the at least two support members form a support plane.

[0019] Another object of the present utility model is to provide a laser tracking measurement device, which can increase the stability of the reflection sphere at the sampling position, improve the measurement accuracy and measurement efficiency, and can adjust the measurement angle, and has a wider measurement range.

[0020] To achieve this purpose, the present utility model adopts the following technical solutions:

[0021] The laser tracking measurement equipment comprises a laser tracking measurement instrument, a reflection ball and the reflection ball measurement bracket. The reflection ball is rotatably arranged on the measurement bracket. The measurement bracket is used to be placed at a measurement point. The laser tracking measurement instrument can track and measure the position of the reflection ball.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a reflection ball measurement bracket and a laser tracking measurement device, wherein the reflection ball is fixedly arranged in a groove with an adjustable angle, so that the reflection ball is firmly connected to the reflection ball measurement bracket, and the reflection ball will not be separated from the reflection ball measurement bracket, and the stability is high, so that when the reflection ball is installed at the sampling point position, there will be no shaking deviation and the problem of affecting the measurement data. Similarly, the sampling point position where the reflection ball can be placed is not limited to the horizontal plane, but can also be placed at other positions such as an inclined plane, thereby improving the measurement range of the laser tracking measurement device using the reflection ball measurement bracket; and the setting of the support member provides a support surface for the reflection ball measurement bracket, so that the support surface and the outer peripheral wall of the reflection ball are placed together in a close fit with the sampling point position. Moreover, after the reflection ball is installed at the sampling point position with the reflection ball measurement bracket, the rotation of the reflection ball can also be driven by external force to adjust the angle of the reflection ball, thereby further improving the measurement range of the laser tracking measurement device using the reflection ball measurement bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an axonometric diagram of a reflection ball measuring bracket provided by a specific embodiment of the utility model and equipped with a reflection ball;

[0025] Figure 2 It is an axonometric diagram of a reflection ball measuring bracket provided in a specific embodiment of the utility model;

[0026] Figure 3 It is a bottom view of the reflection ball measurement bracket provided by the specific embodiment of the utility model;

[0027] Figure 4 It is a side view of a reflection ball measuring bracket provided by a specific embodiment of the utility model, on which a reflection ball is installed.

[0028] In the figure:

[0029] 10. base; 101. groove; 11. bottom wall; 12. side wall; 121. mounting groove; 13. protection part; 14. fillet part;

[0030] 20. Support member; 30. Support plane;

[0031] 200. Reflection ball. DETAILED DESCRIPTION

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0036] The following refers to Figures 1 to 4 to introduce the emission measurement bracket and the laser tracking measurement device provided by the present utility model.

[0037] It should be noted that the first direction in this embodiment is Figure 1 the X direction in Figure 1 the second direction is Figure 1 the Y direction in

[0038] Please refer to Figure 1 and Figure 2Specifically, the reflection ball measurement bracket includes a base 10 and a support member 20. The base 10 is provided with a groove 101 along a first direction. The groove 101 has two groove walls arranged opposite to each other along a second direction. The reflection ball 200 is arranged between the two groove walls of the groove 101. The reflection ball 200 is fixedly arranged in the groove 101 with an adjustable angle. The support member 20 is arranged on at least one side of the base 10 along a third direction. The side of the support member 20 away from the base 10 along the third direction is a support surface. The highest point of the outer peripheral wall of the reflection ball 200 located on the same side as the support member 20 is arranged in the same plane as the support surface.

[0039] The reflection ball measuring bracket in the present embodiment fixes the reflection ball 200 in the groove 101 with an adjustable angle, so that the reflection ball 200 is firmly connected to the reflection ball measuring bracket, and the reflection ball 200 will not separate from the reflection ball measuring bracket, and the stability is high, so that when the reflection ball 200 is installed at the sampling point position, there will be no shaking or deviation to affect the measurement data. Similarly, the sampling point position where the reflection ball 200 can be placed is not limited to the horizontal plane, but can also be placed at other positions such as inclined planes and curved surfaces, thereby improving the measurement range of the laser tracking measurement equipment using the reflection ball measuring bracket; and the reflection ball measuring bracket has a certain rotation displacement space for the reflection ball 200 in the third direction, and the setting of the support member 20 provides a support surface for the reflection ball measuring bracket, so that the support surface and the outer peripheral wall of the reflection ball 200 jointly form a support plane 30, so as to realize the placement and installation of the reflection ball measuring bracket in the third direction. Furthermore, after the reflection ball 200 is installed at the sampling point with the reflection ball measuring bracket, the reflection ball 200 can be driven to rotate by external force to adjust the angle of the reflection ball 200, thereby further improving the measurement range of the laser tracking measurement device using the reflection ball measuring bracket.

[0040] The following introduces the use of the laser tracking measurement equipment for measuring various types of sampling points.

[0041] For example, when measuring a plane: if the laser tracking measuring instrument is relatively perpendicular to the measured plane, the reflective ball 200 is rotated to the front of the opening on the side of the reflective ball measuring bracket away from the bottom wall 11 along the third direction and the incident angle is adjusted to perform point measurement. If the laser tracking measuring instrument is relatively parallel to the measured plane, the reflective ball 200 is rotated above the opening and the incident angle is adjusted to perform point measurement.

[0042] When measuring the outer circle and inner hole, if the laser tracking measuring instrument is relatively perpendicular to the outer circle and inner hole to be measured, the reflecting ball 200 is rotated to the front of the opening and the incident angle is adjusted to perform point measurement.

[0043] It should be noted that when measuring on some narrow measuring surfaces or those that do not meet the requirements for installing the reflection ball measuring bracket, the operator can also hold the reflection ball measuring bracket or the handheld reflection ball 200 for measurement.

[0044] The following introduces the use of the laser tracking measurement device when measuring various types of components to be measured.

[0045] Exemplarily, when measuring conventional elements: as long as the area size of the element to be measured meets the size requirements of the reflecting sphere measurement bracket and the incident angle requirements of the reflecting sphere 200, the measurement requirements can be met. When the area size of some elements does not meet the size of the reflecting sphere measurement bracket: the reflecting sphere 200 can be rotated to a position above the opening, and the tangent point of the spherical surface of the reflecting sphere 200 is placed at the front end of the opening. At this time, the operator can hold the reflecting sphere measurement bracket to measure. When measuring in some narrow or difficult-to-use places of the reflecting sphere measurement bracket, the operator grabs the reflecting sphere 200 to measure.

[0046] Please refer to Figures 1 to 3 , in some embodiments, the base 10 includes a bottom wall 11 and two side walls 12. The two side walls 12 are oppositely arranged at both ends of the bottom wall 11 along the second direction. The bottom wall 11 and the two side walls 12 enclose a groove 101. Such a setting has a simple structure, which can not only meet the installation of the reflecting sphere 200, but also provide space for the rotation of the reflecting sphere 200 in the third direction, enabling it to rotate better. Moreover, the two side walls 12 realize the installation of the reflecting sphere measurement bracket in the second direction, and the bottom wall 11 realizes the installation of the reflecting sphere measurement bracket in the first direction. Cooperating with the support member 20, it can ensure the installation and placement of the reflecting sphere measurement bracket in three directions, so that the reflecting sphere measurement bracket can be placed along the first direction, the second direction or the third direction according to actual needs, improving the convenience and application range of the installation and measurement of the reflecting sphere measurement bracket.

[0047] In some embodiments, the base 10 further includes a protection part 13. The protection part 13 is arranged on one side of the bottom wall 11 along the third direction, and the support member 20 is arranged on the other side of the base 10 along the third direction. The protection part 13 is used to protect the reflecting sphere 200. The protection part 13 and the support member 20 are respectively arranged on both sides of the base 10 along the third direction, which can not only meet the installation and placement of the support member 20 on both sides in the third direction, but also the protection part 13 and the two side walls 12 form a semi-surrounding state to better limit and protect the reflecting sphere 200.

[0048] In some embodiments, the dimension of the protection part 13 along the first direction is smaller than the dimension of the side wall 12 along the first direction. Such a setting can avoid the reflection structure of the reflecting sphere 200 and also give space for the rotation of the reflecting sphere 200.

[0049] Optionally, rounded corners 14 are provided at the joints of the bottom wall 11 and the side wall 12, the joints of the protective part 13 and the bottom wall 11, and the joints of the side wall 12 and the protective part 13. The rounded corners make the inside of the groove 101 smoother and will not damage the reflecting sphere 200.

[0050] In some embodiments, the outer peripheral wall of the reflecting sphere 200 abuts against the groove wall (i.e., the side wall 12), and the reflecting sphere 200 is configured to be rotatable by an external force to adjust the angle. By the abutment of the outer peripheral wall of the reflecting sphere 200 against the groove wall of the groove 101, the fixed installation of the reflecting sphere 200 on the reflecting sphere measuring bracket can be realized, making its installation more stable. The angle of the reflecting sphere 200 can be adjusted by an external force, increasing its measurement range.

[0051] Specifically, the dimension of the groove 101 in the second direction is not greater than the diameter of the reflecting sphere 200, so that the outer peripheral wall of the reflecting sphere 200 can be clamped and abutted by the two groove walls, thus realizing the fixed installation of the reflecting sphere 200. At the same time, it also restricts other degrees of freedom of the reflecting sphere 200, enabling it to rotate when driven by an external force.

[0052] Specifically, two mounting grooves 121 are respectively provided on the two groove walls in one-to-one correspondence, and the two mounting grooves 121 are coaxially arranged. The outer peripheral wall of the reflecting sphere 200 is connected with the mounting grooves 121 in a matching manner. The arrangement of the mounting grooves 121 increases the connection area between the reflecting sphere 200 and the groove 101, thereby increasing the connection stability between the two. And the axis between the two mounting grooves 121 also serves as the rotation axis of the reflecting sphere 200, enabling the reflecting sphere 200 to rotate along the rotation axis by applying an external force.

[0053] Optionally, the shape of the mounting groove 121 is the same as the shape of the outer peripheral wall of the reflecting sphere 200, which can make the cooperation and fixation between the mounting groove 121 and the outer peripheral wall of the reflecting sphere 200 better.

[0054] In some embodiments, the reflecting sphere measuring bracket is made of an elastic material, so that the reflecting sphere measuring bracket has a certain elasticity, which is convenient for the installation and fixation of the reflecting sphere 200. Exemplarily, the reflecting sphere measuring bracket is made of PLA (Polylactic acid), which has a certain elasticity and high environmental protection.

[0055] Please refer to Figure 1 and Figure 4, in some embodiments, at least two support members 20 are spaced apart. The highest points on the outer peripheral wall of the reflecting sphere 200 on the same side as the support members 20 and the support surfaces of at least two support members 20 form a support plane 30, that is, a stable support plane 30 that is at least triangular is formed by at least three support points or support surfaces, so as to improve the reliability when the reflecting sphere measuring bracket is installed in the third direction.

[0056] Optionally, the cross-sectional shape of the support member 20 is circular, kidney-shaped or regular polygon, and all can realize the function of supporting the entire reflecting sphere measuring bracket.

[0057] Exemplarily, in this embodiment, two support members 20 are provided. The two support members 20 are symmetrically arranged on one side of the bottom wall 11 along the third direction. The cross-sectional shape of the support member 20 is circular, and the side of the support member 20 facing away from the base 10 is provided with a rounded corner, so that a support plane 30 with higher stability of an isosceles triangle is formed between the support points of the two support members 20 and the highest points on the outer peripheral wall of the reflecting sphere 200.

[0058] This embodiment also provides a laser tracking measurement device, which includes a laser tracker, a reflecting sphere 200 and the reflecting sphere measuring bracket described in any of the above solutions. The reflecting sphere 200 is rotatably arranged on the measuring bracket, the measuring bracket is used to be placed at the measuring point, and the laser tracker can track and measure the position of the reflecting sphere 200. All the beneficial effects of the reflecting sphere measuring bracket are included in this laser tracking measurement device, and will not be elaborated here.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A reflective ball measuring bracket, characterized in that: include: A base (10) is provided with a groove (101) along a first direction, the groove (101) having two groove walls arranged opposite to each other along a second direction, a reflective ball (200) is arranged in the groove (101), and the reflective ball (200) is fixedly arranged between the two groove walls of the groove (101) with an adjustable angle; A support member (20) is arranged on at least one side of the base (10) along a third direction, the first direction, the second direction and the third direction are mutually perpendicular, a side of the support member (20) away from the base (10) along the third direction is a support surface, and the highest point of the outer peripheral wall of the reflection ball (200) located on the same side as the support member (20) is arranged in the same plane as the support surface.

2. The reflective ball measuring bracket according to claim 1, characterized in that: The base (10) comprises a bottom wall (11) and two side walls (12); the two side walls (12) are arranged opposite to each other at two ends of the bottom wall (11) along the second direction; the bottom wall (11) and the two side walls (12) enclose the groove (101).

3. The reflective ball measuring bracket according to claim 2, characterized in that: The base (10) further comprises a protection portion (13), wherein the protection portion (13) is arranged on one side of the bottom wall (11) along the third direction, and the support member (20) is arranged on the other side of the base (10) along the third direction, and the protection portion (13) is used to protect the reflective ball (200).

4. The reflective ball measuring bracket according to claim 3, characterized in that: The dimension of the protection portion (13) along the first direction is smaller than the dimension of the side wall (12) along the first direction.

5. The reflective ball measuring bracket according to claim 1, characterized in that: The outer peripheral wall of the reflecting ball (200) abuts against the groove wall, and the reflecting ball (200) is configured to be driven by an external force to rotate so as to adjust the angle.

6. The reflecting ball measuring bracket according to claim 5, characterized in that: The dimension of the groove (101) along the second direction is no greater than the diameter of the reflective ball (200).

7. The reflective ball measuring bracket according to claim 5, characterized in that: The two groove walls are respectively provided with two installation grooves (121) in one-to-one correspondence, the two installation grooves (121) are coaxially arranged, and the outer peripheral wall of the reflection ball (200) is matched and connected with the installation groove (121).

8. The reflective ball measuring bracket according to claim 7, characterized in that: The shape of the installation groove (121) is the same as the shape of the outer peripheral wall of the reflection ball (200).

9. The reflective ball measuring bracket according to any one of claims 1 to 8, characterized in that: The support member (20) is provided with at least two support members (20) at intervals, and the highest point of the outer peripheral wall of the reflection ball (200) located on the same side as the support member (20) and the support surfaces of at least two support members (20) form a support plane (30).

10. Laser tracking measurement equipment, characterized in that, The invention comprises a laser tracking measuring instrument, a reflecting ball (200) and a reflecting ball measuring bracket as described in any one of claims 1 to 9, wherein the reflecting ball (200) is rotatably arranged on the measuring bracket, the measuring bracket is used to be placed at a measuring point, and the laser tracking measuring instrument can track and measure the position of the reflecting ball (200).

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