Laser tracker target ball

Abstract

The utility model discloses a laser tracker target ball, including the spheroid, the spheroid has the cavity, be equipped with the opening of the intercommunication cavity on the spheroid, the opening place threaded connection has the compression circle, is equipped with the lens seat and cubic angle retroreflector in the cavity, and the compression circle is equipped with the sheath between the lens seat. The utility model discloses a laser tracker target ball, cubic angle retroreflector and lens seat are fixed after preliminary calibration, and after being loaded into the target ball inside, it is convenient to adjust the relative spatial relation. After product is completed, optical and physical structure are relatively stable, and the ability that resists external interference is strong. Compression circle structure design is reasonable, and cooperate sheath, play the role of reinforcing the internal structure of spheroid, form protection to cubic angle retroreflector again, improve the service life of target ball. Spheroid and base adopt magnetic attraction force connection, and the installation dismounting is convenient, promotes work efficiency and guarantees the measuring accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of laser tracker technology, specifically relating to a laser tracker target ball. Background Technology

[0002] Laser trackers, with their high precision and efficiency, are widely used in many key industries such as aerospace, automotive manufacturing, and machining, playing an indispensable role in the dimensional inspection and installation positioning of large components. The target sphere, as one of the core components of the laser tracker, directly affects the accuracy and stability of the entire measurement system.

[0003] Currently, existing laser tracker target spheres on the market have several structural design problems that urgently need to be addressed. On one hand, the cubic angle reflector is directly fixed inside the target sphere with glue, making its installation and positioning complex. The concentricity of the cubic angle reflector and the target sphere is difficult to control effectively, resulting in inconsistent product quality and requiring significant time and effort for calibration, leading to low production efficiency. On the other hand, the optical components inside the target sphere are not sufficiently stable and are prone to displacement under long-term use or external vibrations, leading to a decrease in measurement accuracy.

[0004] In summary, existing laser tracker target balls have many shortcomings in both assembly and long-term use, urgently requiring a new structural design to address these issues, improve the measurement accuracy and efficiency of laser trackers, and meet the ever-evolving needs of modern industrial measurement. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a laser tracker target ball, including a sphere, the sphere having a cavity inside, an opening communicating with the cavity on the sphere, a pressure ring threadedly connected to the opening, a lens holder and a cubic angle retroreflector disposed inside the cavity, and a protective sleeve provided between the pressure ring and the lens holder.

[0006] As a preferred embodiment of the above technical solution, it also includes a base, which includes a seat body. The seat body has a socket in the middle for placing the sphere, and the sphere and the seat body are connected by magnetic attraction.

[0007] As a preferred embodiment of the above technical solution, the cubic angle retroreflector is composed of three optical lenses spliced ​​together, with the three optical lenses forming a cubic angle.

[0008] As a preferred embodiment of the above technical solution, the pressure ring includes a lower threaded portion, a limiting portion, and an upper connecting portion connected in sequence. The lower threaded portion extends into the cavity and is threadedly connected to the ball. The diameter of the limiting portion is larger than the diameter of the opening. The upper connecting portion is provided with two through holes that are close to each other. The inner diameter of the upper connecting portion gradually increases from the inside to the outside.

[0009] As a preferred embodiment of the above technical solution, the lens holder is provided with a receiving groove in the middle, and a support structure is provided in the middle of the receiving groove. The lower end of the cubic angle retroreflector is inserted into the support structure. Glue is provided inside the support structure. Several glue-draining grooves are provided on the support structure. Several process grooves are provided around the lens holder. Process holes are provided in the process grooves.

[0010] As a preferred embodiment of the above technical solution, one side of the seat is provided with a connecting groove that connects to the ball socket.

[0011] As a preferred embodiment of the above technical solution, the lower end of the base is fixedly connected to a fixing part.

[0012] The beneficial effects of this invention are as follows: The laser tracker target ball of this invention, after initial calibration and fixation of the cubic angle retroreflector and lens mount, facilitates adjustment of their relative spatial relationship after being installed inside the target ball. Once completed, the optical and physical structure is relatively stable, exhibiting strong resistance to external interference. The pressure ring structure is rationally designed, and together with the protective sleeve, it not only fixes the lens mount but also protects the cubic angle retroreflector, extending the target ball's lifespan. The ball and base are connected by magnetic attraction, making installation and disassembly convenient, improving work efficiency while ensuring measurement accuracy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a sphere;

[0014] Figure 2 This is a schematic diagram of the lens mount structure;

[0015] Figure 3 This is a schematic diagram of the pressure ring structure;

[0016] Figure 4 This is a schematic diagram of a cubic angle retroreflector;

[0017] Figure 5 This is a schematic diagram of the base structure;

[0018] Figure 6 This is a schematic diagram of the right-angle bracket;

[0019] Figure 7 This is a schematic diagram of the drift mount structure;

[0020] Figure 8 This is a schematic diagram of the cross-sectional structure of the drift seat. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-8 As shown, the laser tracker target sphere includes a sphere 1 with an internal cavity 3. An opening 4 connects the sphere 1 to the cavity 3, and a pressure ring 5 is threaded onto the opening 4. A lens mount 6 and a cubic angle retroreflector 7 are housed within the cavity 3. A protective sleeve 8 is provided between the pressure ring 5 and the lens mount 6. The lens mount 6 and the cubic angle retroreflector 7 are inserted into the cavity 3. The relative positions of the lens mount 6 and cubic angle retroreflector 7 assembly and the sphere 1 are adjusted using measurements and tools, and then fixed with glue. The protective sleeve 8 is then installed, with the upper end of the cubic angle retroreflector 7 located within the protective sleeve 8. Finally, the pressure ring 5 is installed.

[0025] Furthermore, it also includes a base, which includes a seat body 2. The seat body 2 has a ball socket 9 in the middle for placing the ball 1. The ball 1 and the seat body 2 are connected by magnetic attraction.

[0026] Furthermore, the cubic angle retroreflector 7 is composed of three optical lenses 10 spliced ​​together (e.g., Figure 4As shown), the three optical lenses 10 form a cubic angle between them. One optical lens 10 is smaller, another optical lens 10 is of medium size, and the last optical lens 10 is larger. The three optical lenses 10 are glued together in sequence to form a cubic angle retroreflector 7.

[0027] Furthermore, such as Figure 3 As shown, the pressure ring 5 includes a lower threaded portion 11, a limiting portion 12, and an upper connecting portion 13 connected in sequence. The lower threaded portion 11 extends into the cavity 3 and is threadedly connected to the ball 1. The diameter of the limiting portion 12 is larger than the diameter of the opening 4. The upper connecting portion 13 is fitted with a protective cover and has two closely spaced through holes 14. The inner diameter of the upper connecting portion 13 gradually increases from the inside out. The through holes 14 are used to install wristbands, bracelets, etc. The limiting portion 12 prevents the lower threaded portion 11 from going too deep and damaging the lens holder 6.

[0028] Furthermore, such as Figure 2 As shown, the lens holder 6 has a receiving groove 15 in the middle, and a support structure 16 in the middle of the receiving groove 15. The lower end of the cubic angle retroreflector 7 is inserted into the support structure 16. Adhesive is provided inside the support structure 16, and several adhesive discharge grooves 17 are provided on the support structure 16. Several process grooves 18 are provided around the lens holder 6, and process holes 19 are provided in the process grooves 18. The cubic angle retroreflector 7 and the lens holder 6 are pre-assembled. During assembly, adhesive is first injected into the support structure 16 of the lens holder 6, and then the lower end of the cubic angle retroreflector 7 is inserted into the support structure 16. Excess adhesive is discharged from the adhesive discharge grooves 17. Then, the cubic angle retroreflector 7 and the lens holder 6 are inserted together into the cavity 3 inside the sphere 1. By using tools applied to the process grooves 18 and process holes 19, the spatial relationship between the lens holder 6 and the sphere 1 can be adjusted. When the cubic angle retroreflector 7 has a large angular deviation, the lens holder 6 can be removed and the bottom of the lens holder 6 can be processed by additive or subtractive processing so that after the lens holder 6 and the cubic angle retroreflector 7 are reinstalled, the cubic angle retroreflector 7 can form a preset concentricity with the sphere 1.

[0029] Furthermore, one side of the base 2 is provided with a connecting groove 20 that connects to the ball socket 9. The connecting groove 20 facilitates the cleaning of dust and other debris from the ball socket 9.

[0030] Furthermore, a fixing part 21 is fixedly connected to the lower end of the base 2. The fixing part 21 is used to connect the base 2 to the surface of the object to be measured. The fixing part 21 can take various forms, such as a column shape coaxially arranged with the base 2 (e.g., Figure 5 As shown, the pile base can also be a semi-cylindrical shape (such as a pile base) fixed to one side of the base body 2 and containing a magnet inside. Figure 6 As shown, a right-angled seat). Alternatively, multiple wiping grooves 22 can be provided around the ball socket 9 on the seat body 2 (such as...). Figure 7As shown, the drift seat facilitates the overall movement of the sphere 1 and the seat 2. When the sphere 1 rotates within the ball socket 9, the wiping groove 22 helps to scrape away dirt adhering to the sphere.

[0031] It is worth mentioning that the technical features such as the laser tracker involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement methods of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0032] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A target ball for a laser tracker, characterized in that, The device includes a sphere with a cavity inside and an opening on the sphere that connects to the cavity. A pressure ring is threaded onto the opening. A lens holder and a cubic angle retroreflector are provided inside the cavity. A protective sleeve is provided between the pressure ring and the lens holder.

2. The laser tracker target ball as described in claim 1, characterized in that, It also includes a base, which includes a seat body with a socket in the middle for placing the ball. The ball and the seat body are connected by magnetic attraction.

3. The laser tracker target ball as described in claim 1, characterized in that, The cubic angle retroreflector is composed of three optical lenses spliced ​​together, forming a cubic angle between the three optical lenses.

4. The laser tracker target ball as described in claim 1, characterized in that, The pressure ring includes a lower threaded part, a limiting part, and an upper connecting part connected in sequence. The lower threaded part extends into the cavity and is threadedly connected to the ball. The diameter of the limiting part is larger than the diameter of the opening. The upper connecting part is provided with two through holes that are close to each other. The inner diameter of the upper connecting part gradually increases from the inside to the outside.

5. The laser tracker target ball as described in claim 1, characterized in that, The lens holder has a receiving groove in the middle, and a support structure is provided in the middle of the receiving groove. The lower end of the cubic angle retroreflector is inserted into the support structure. The support structure contains glue and has several glue grooves. The lens holder has several process grooves around its perimeter, and process holes are provided in the process grooves.

6. The laser tracker target ball as described in claim 2, characterized in that, One side of the base is provided with a connecting groove that connects to the ball socket.

7. The laser tracker target ball as described in claim 2 or 6, characterized in that, The lower end of the base is fixedly connected to a fixing part.

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