A laser tracker coordinate positioning aid

Abstract

The application provides a kind of laser tracker coordinate positioning auxiliary device, to assist laser tracker to determine dotting point in dotting area, comprising: shell, it is located above the dotting area, its bottom is equipped with the opening towards the dotting area;Telescopic mechanism, located in the shell, including a plurality of one-to-one corresponding connection settings telescopic structure and seat petal, multiple seat petal can be close to each other under the telescopic action of the telescopic structure form to carry target ball ball seat, or away from form for the target ball passageway, the ball seat or the passageway is opposite to the opening arrangement;Dotting mechanism, including the positioning screw rod and dotting part connected, the positioning screw rod passes through the shell top and is connected with the shell top screw thread, and can be up and down along the axis of the ball seat or passageway movement, the dotting part is close to the telescopic mechanism arrangement.The application makes target ball smoothly from shell, and improves the precision of using target ball to dotting positioning.

Description

Technical Field

[0001] The present application relates to the field of laser positioning technology, and in particular to a laser tracker coordinate positioning auxiliary device. Background Art

[0002] Generally speaking, especially for large components, surfaces such as those with added threaded holes, welding accessories, supports, etc. require coordinate positioning. The machine tool does not have the corresponding operating space, and a laser tracker is required in conjunction with a coordinate positioning auxiliary device. However, in the related technology, on the one hand, it is very inconvenient to remove the target ball from the shell; on the other hand, the coordinate positioning accuracy of the coordinate positioning auxiliary device is poor. Therefore, how to conveniently remove the target ball and improve the coordinate positioning accuracy of the coordinate positioning auxiliary device are technical problems that technical personnel in this field urgently need to solve. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a laser tracker coordinate positioning auxiliary device.

[0004] Based on the above objectives, the present application provides a laser tracker coordinate positioning auxiliary device for assisting the laser tracker in determining the dotting point position within the dotting area, comprising:

[0005] A shell is located above the dotting area and has an opening at its bottom facing the dotting area;

[0006] a telescopic mechanism located within the housing and comprising a plurality of telescopic structures and seat petals connected and arranged in a one-to-one correspondence, wherein the plurality of seat petals can move closer to each other to form a ball seat for supporting a target ball, or move away from each other to form a channel for the target ball to pass through, under the telescopic action of the telescopic structure, and the ball seat or the channel is arranged opposite to the opening;

[0007] The dotting mechanism includes a connected positioning screw and a dotting part. The positioning screw passes through the top of the shell and is threadedly connected to the top of the shell, and can move up and down along the axis of the ball seat or channel. The dotting part is arranged close to the telescopic mechanism.

[0008] Furthermore, the device also includes a pressing mechanism located above the telescopic mechanism and capable of moving up and down along the axis of the ball seat or channel to press down or release the pressure on the target ball on the ball seat, so that the telescopic structure can perform a telescopic effect.

[0009] Furthermore, the device also includes a supporting mechanism, which includes a supporting ring and a connecting structure. One end of the connecting structure is fixedly connected to the outer wall of the shell, and the other end is fixedly connected to the supporting ring. The supporting ring is located below the shell, and the dotting area is located inside the supporting ring.

[0010] Furthermore, the telescopic structure includes a telescopic rod and a first spring, one end of the telescopic rod is provided with a stop block, and the other end passes through the side wall of the shell and enters the shell to be fixedly connected to the seat petal, and the first spring is sleeved on the outer periphery of the telescopic rod, one end is fixedly connected to the seat petal, and the other end is fixedly connected to the inner wall of the shell.

[0011] Furthermore, an arcuate groove is provided at the top of one end of the seat petal away from the telescopic structure, and when the plurality of seat petals are close to each other, the plurality of arcuate grooves form a circular groove adapted to the target ball.

[0012] Furthermore, the striking mechanism further includes an operating portion, which is located on the outer side of the top of the shell and is fixedly connected to an end of the positioning screw away from the striking portion.

[0013] Furthermore, the downward pressing mechanism includes an annular pressure plate, a connecting frame and a plurality of limiting slide bars, the annular pressure plate is located in the shell and is located above the ball seat and is arranged opposite to the ball seat, one end of the plurality of limiting slide bars is fixedly connected to the top of the annular pressure plate, and the other end passes through the top of the shell and is fixedly connected to the connecting frame, and the plurality of limiting slide bars are evenly distributed on the annular pressure plate, the outer wall of the connecting frame is rotatably connected to the rotating rod, the rotating rod is provided with a protrusion, and the outer top of the shell is fixedly connected to a track for the movement of the rotating rod, the track includes a vertical movement track and a fixed track, the fixed track and the vertical movement track are vertically arranged, and when the rotating rod moves in the vertical movement track to an intersection position with the fixed track, the rotating rod is rotated so that the protrusion of the rotating rod is located in the fixed track to complete the fixation of the rotating rod.

[0014] Furthermore, the downward pressing mechanism also includes a circular plate and a second spring which is sleeved on the periphery of the limiting slide rod and located inside the shell. The circular plate is fixedly connected to the limiting slide rod. One end of the second spring is fixedly connected to the circular plate, and the other end is fixedly connected to the top inside the shell.

[0015] Furthermore, the connection structure includes a connection block and an L-shaped support plate, the connection block is fixedly connected to the outer wall of the shell, the short side end of the L-shaped support plate is fixedly connected to the connection block, and the long side end of the L-shaped support plate is fixedly connected to the top of the support ring.

[0016] Furthermore, a reserved hole and two oppositely arranged perspective windows are provided on the side wall of the shell, and the reserved hole and the perspective windows are both arranged opposite to the target ball located on the telescopic mechanism.

[0017] From the above description, it can be seen that the laser tracker coordinate positioning auxiliary device provided by the present application, by setting a telescopic mechanism, enables the telescopic mechanism to form a ball seat for the target ball or a channel for the target ball to pass through under the action of telescoping, which can not only use the target ball to determine the dotting point, but also facilitate the removal of the target ball, making it more convenient for users to use. In addition, the dotting mechanism is set to enable the dotting mechanism to move up and down along the axis of the ball seat or the channel, so that the position of the dotting mechanism during dotting and the accuracy of the dotting position determined by using the target ball are improved, thereby improving the positioning accuracy of the coordinate positioning auxiliary device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the coordinate positioning auxiliary device of the laser tracker according to the embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the main structure of the laser tracker coordinate positioning auxiliary device according to an embodiment of the present application;

[0021] Figure 3 This is a bottom-up structural diagram of the laser tracker coordinate positioning auxiliary device according to an embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of the telescopic mechanism of the laser tracker coordinate positioning auxiliary device according to an embodiment of the present application;

[0023] Figure 5 This is a structural diagram of the pressing mechanism of the laser tracker coordinate positioning auxiliary device according to an embodiment of the present application;

[0024] Figure 6 This is a structural schematic diagram of the dotting mechanism of the laser tracker coordinate positioning auxiliary device according to an embodiment of the present application.

[0025] In the figure: 1. Shell; 2. Telescopic mechanism; 21. Telescopic structure; 211. Telescopic rod; 212. First spring; 213. Stop block; 22. Seat flap; 221. Arc groove; 3. Dotting mechanism; 31. Positioning screw; 32. Dotting part; 33. Operating part; 4. Pressing mechanism; 41. Annular pressure plate; 42. Connecting frame; 43. Limiting slide bar; 44. Rotating rod; 45. Track; 46. U-shaped fixing block; 47. Circular ring plate; 48. Second spring; 5. Support mechanism; 51. Support ring; 52. Connecting structure; 521. Connecting block; 522. L-shaped support plate; 6. Reserved hole; 7. Perspective window. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] As described in the background technology section, in the prior art, on the one hand, it is very inconvenient to remove the target ball from the shell; on the other hand, the coordinate positioning accuracy of the coordinate positioning auxiliary device is poor.

[0029] In response to the above technical problems, the present application provides a laser tracker coordinate positioning auxiliary device. By setting a telescopic mechanism, the telescopic mechanism can form a ball seat for the target ball or a channel for the target ball to pass through under the action of telescoping. The target ball can be used to determine the dotting point, and the target ball can also be easily removed, making it more convenient for users to use. In addition, the dotting mechanism is set so that the dotting mechanism can move up and down along the axis of the ball seat or the channel, so that the position of the dotting mechanism during dotting and the accuracy of the dotting position determined by the target ball are improved, thereby improving the positioning accuracy of the coordinate positioning auxiliary device.

[0030] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings. The present application provides a laser tracker coordinate positioning auxiliary device for assisting the laser tracker in determining the dotting point position within the dotting area, such as Figures 1-6 Shown, including:

[0031] The shell 1 is located above the dotting area, and an opening facing the dotting area is provided at the bottom thereof. The shell 1 is the main structure of the device, and dots are made toward the dotting area through the opening.

[0032] The telescopic mechanism 2 is located within the housing 1 and includes a plurality of telescopic structures 21 and seat petals 22 connected in a one-to-one correspondence. The plurality of seat petals 22 can move closer to each other under the telescopic action of the telescopic structure 21 to form a ball seat for supporting a target ball, or move away to form a passage for the target ball to pass through. The ball seat or the passage is arranged opposite the opening. During positioning using the device, the ball seat of the telescopic mechanism 2 is used to support the target ball, facilitating the laser tracker to use the target ball to determine the marking point. After the marking point is determined, the plurality of seat petals 22 in the telescopic mechanism 2 move away from each other evenly to form a passage for the target ball to pass through, facilitating the target ball to leave the housing 1 and facilitate subsequent marking operations at the marking point.

[0033] The dotting mechanism 3 includes a connected positioning screw 31 and a dotting portion 32. The positioning screw 31 passes through the top of the housing 1 and is threadedly connected to the top of the housing 1. It can move up and down along the axis of the ball seat or the channel. The dotting portion 32 is located near the telescopic mechanism 2. The axis of the ball seat or the channel formed by the dotting mechanism 3 and the telescopic mechanism 2 is the same. That is, the dotting point determined by the target ball on the ball seat is the same as the vertical point of the dotting portion 32 of the dotting mechanism 3. After the target ball leaves the housing 1, the positioning screw 31 in the dotting mechanism 3 moves downward, causing the dotting portion 32 to dot the dotting point in the dotting area, thereby improving the positioning accuracy of the device.

[0034] When using the device to assist the laser tracker in locating the dotting point, the target ball is placed on the ball seat of the telescopic mechanism 2. The laser tracker uses the center point of the target ball to confirm the dotting point in the dotting area. The telescopic mechanism 2 then applies a certain degree of telescopic force, causing the multiple seat petals 22 to evenly move away from each other, forming a channel for the target ball to pass through. The target ball can then leave the housing 1 through the channel, making it easier for the user to remove the target ball from the housing 1. Because the axis of the ball seat or the channel is the same as the movement path of the dotting mechanism 3, after removing the target ball, the positioning screw 31 of the dotting mechanism 3 is rotated, causing it to move downward, and driving the dotting portion 32 to move downward until the dotting portion 32 contacts the determined dotting point within the dotting area, completing the dotting positioning and improving the accuracy of the dotting positioning.

[0035] In some embodiments, as Figure 5 As shown, the device also includes a pressing mechanism 4, located above the telescopic mechanism 2, which can move up and down along the axis of the ball seat or channel to press down or release the target ball on the ball seat, thereby causing the telescopic structure 21 to extend and retract. The pressing mechanism 4 is used to apply downward pressure to the target ball, causing the target ball to apply a certain compressive force to the seat petals 22 forming the ball seat. The seat petals 22 then apply a certain compressive force to the telescopic structure 21. Driven by the telescopic structure 21, the seat petals 22 evenly move away from each other, forming a channel for the target ball to pass through, allowing the target ball to exit the housing 1 through the channel. The provision of the pressing mechanism 4 facilitates the user's application of compressive force to the telescopic mechanism 2 and ensures that the force applied to the telescopic structure 21 and the seat petals 22 in the telescopic mechanism 2 is uniform, thereby improving the accuracy of the device in determining the dot location.

[0036] Furthermore, after the target ball leaves the shell 1 through the channel, the pressing mechanism 4 returns to its original position (i.e., above the telescopic mechanism 2), and the multiple seat petals 22 in the telescopic mechanism 2 return to their original positions under the reaction force of the corresponding multiple telescopic structures 21, and the multiple seat petals 22 approach each other to form the ball seat that supports the target ball.

[0037] In some embodiments, as Figure 2 and Figure 3As shown, the device further includes a support mechanism 5, which includes a support ring 51 and a connecting structure 52. One end of the connecting structure 52 is fixedly connected to the outer wall of the shell 1, and the other end is fixedly connected to the support ring 51. The support ring 51 is located below the shell 1, and the dotting area is located within the support ring 51. The support mechanism 5 is used to support the shell 1 and to ensure a certain distance between the shell 1 and the dotting area, so as to facilitate the removal of the target ball without affecting the dotting work of the dotting mechanism 3.

[0038] In some embodiments, as Figure 4 As shown, the telescopic structure 21 includes a telescopic rod 211 and a first spring 212. The telescopic rod 211 has a stopper 213 at one end, and the other end passes through the side wall of the housing 1, enters the housing 1, and is fixedly connected to the seat petal 22. The first spring 212 is sleeved around the telescopic rod 211, with one end fixedly connected to the seat petal 22 and the other end fixedly connected to the inner wall of the housing 1. In a natural state, the plurality of first springs 212 drive the corresponding plurality of seat petals 22 toward each other to form a ball seat for supporting the target ball. In a compressed state, the plurality of first springs 212 drive the corresponding plurality of telescopic rods 211 and seat petals 22 away from each other, forming the passage for the target ball to pass through.

[0039] After the pressing mechanism 4 returns to its original position, the first springs 212 drive the corresponding seat petals 22 and the telescopic rod 211 to return to their original positions under the action of their own rebound force, and the seat petals 22 approach each other to form the ball seat.

[0040] In some embodiments, as Figure 4 As shown, the top of the end of the seat petal 22 away from the telescopic structure 21 is provided with an arcuate groove 221. When the multiple seat petals 22 are close to each other, the multiple arcuate grooves 221 form a circular groove that adapts to the target ball. When the multiple seat petals 22 are close to each other, they can form a ball seat that supports the target ball. The ball seat is an annular structure. That is, when the multiple seat petals 22 are close to each other, the dotting mechanism 3 can still pass through the telescopic structure 21 to perform dotting on the dotting area. Therefore, the arcuate groove 221 is provided at the top of the side where the seat petals 22 are close to each other. The arcuate grooves 221 on the multiple seat petals 22 form a circular groove that adapts to the target ball, which can help maintain the stability of the target ball on the ball seat, thereby facilitating the stability of the device during the positioning process and ensuring positioning accuracy.

[0041] In some embodiments, the shell 1 is a cylindrical structure, the seat petals 22 are fan-shaped structures, and the multiple seat petals 22 are the same size and close to each other to form a ring, so that the downward pressure applied by the target ball on the multiple seat petals 22 is uniform.

[0042] In some embodiments, as Figure 6 As shown, the dotting mechanism 3 also includes an operating portion 33, which is located on the outside of the top of the shell 1 and is fixedly connected to the end of the positioning screw 31 away from the dotting portion 32. When the dotting mechanism 3 is performing a dotting operation, the user needs to rotate the positioning screw 31, and utilize the threaded connection between the positioning screw 31 and the top of the shell 1 to make the positioning screw 31 drive the dotting portion 32 to move up and down. Since the side wall of the positioning screw 31 is threaded, it will wear the user's hand during use, affecting the user's experience. Therefore, an operating portion 33 is provided at the end of the positioning screw 31 away from the dotting portion 32, so that the user can rotate the positioning screw 31 through the operating portion 33, avoiding wear on the user's hand, and also facilitating the user's operation and use, thereby improving the user's experience.

[0043] In some embodiments, as Figure 5 As shown, the pressing mechanism 4 includes an annular pressure plate 41, a connecting frame 42 and a plurality of limiting slide bars 43. The annular pressure plate 41 is located in the shell 1 and is located above the ball seat and is arranged opposite to the ball seat. One end of the plurality of limiting slide bars 43 is fixedly connected to the top of the annular pressure plate 41, and the other end passes through the top of the shell 1 and is fixedly connected to the connecting frame 42. The plurality of limiting slide bars 43 are evenly distributed on the annular pressure plate 41. The outer wall of the connecting frame 42 is rotatably connected to a rotating rod 44. The rotating rod 44 is provided with a protrusion. The outer top of the shell 1 is fixedly connected to a track 45 for the movement of the rotating rod 44. The track 45 includes a vertical movement track 45 and a fixed track 45. The fixed track 45 and the vertical movement track 45 are arranged perpendicularly. When the rotating rod 44 moves to a position intersecting with the fixed track 45 in the vertical movement track 45, the rotating rod 44 is rotated so that the protrusion of the rotating rod 44 is located in the fixed track 45 to complete the fixation of the rotating rod 44.

[0044] Specifically, during the downward pressing process of the pressing mechanism 4, the annular pressure plate 41 directly contacts the target ball on the ball seat to apply downward pressure to the target ball. During use, the rotating rod 44 moves up and down within the vertical motion track 45 to press down on the target ball or release the downward pressure on the target ball. The fixed track 45 is arranged perpendicular to the vertical motion track 45, and the rotating rod 44 is provided with a protrusion. When the rotating rod 44 moves within the vertical track 45 to a position where it intersects with the fixed track 45, the user can rotate the rotating rod 44 so that the protrusion of the rotating rod 44 is located within the fixed track 45. The combined action of the protrusion and the fixed track 45 secures the rotating rod 44. This not only facilitates the user's use of the pressing mechanism 4 to press down on the target ball, but also allows the fixed track 45 to secure the pressing mechanism 4, preventing the pressing mechanism 4 from continuously pressing down on the target ball due to its own gravity, which would affect the normal use of the target ball.

[0045] In some specific embodiments, such as Figure 2 As shown, a U-shaped fixing block 46 is fixedly connected to the outside of the connecting frame 42, and the rotating rod 44 is rotatably connected to the U-shaped fixing block 46 via a rotating shaft. This arrangement further ensures the stability of the connection between the rotating rod 44 and the connecting frame 42, preventing the rotating rod 44 from becoming unstable during multiple rotations and affecting the normal operation of the pressing mechanism 4.

[0046] In some embodiments, as Figure 5 As shown, the pressing mechanism 4 also includes a circular plate 47 and a second spring 48 which are sleeved on the periphery of the limiting slide rod 43 and located inside the shell 1. The circular plate 47 is fixedly connected to the limiting slide rod 43. One end of the second spring 48 is fixedly connected to the circular plate 47, and the other end is fixedly connected to the top inside the shell 1. The second spring 48 enables the annular pressure plate 41 to apply downward pressure to the target ball in a natural state, that is, the second spring 48 enables the annular pressure plate 41 to be arranged close to the telescopic mechanism 2 in a natural state. The provision of the second spring 48 enables the downward pressure mechanism 4 to be acted upon by the fixed track 45 before the downward pressure is applied, so that a certain compressive force is applied to the second spring 48. Then, when the downward pressure mechanism 4 is required to perform a downward pressure, it is only necessary to rotate the rotating rod 44 so that the rotating rod 44 leaves the fixed track 45 and release the fixing effect of the fixed track 45. The annular pressure plate 41 applies downward pressure to the target ball under the action of the rebound force of the second spring 48, thereby preventing the user from applying downward pressure to the target ball by applying downward pressure to the rotating rod 44, thereby affecting the uniform distribution of the downward pressure and thus affecting the uniform force on the target ball.

[0047] Furthermore, the number of the second springs 48 and the annular plates 47 is less than or equal to the number of the limiting slide rods 43, but the second springs 48 and the annular plates 47 are evenly arranged relative to the annular pressure plate 41 to ensure that the annular pressure plate 41 is subjected to a uniform rebound force of the second springs 48, thereby ensuring that the target ball is subjected to a uniform downward pressure without affecting the axis of the telescopic mechanism 2, thereby ensuring the positioning accuracy of the device.

[0048] In some embodiments, as Figure 2 As shown, the connection structure 52 includes a connection block 521 and an L-shaped support plate 522. The connection block 521 is fixedly connected to the outer wall of the housing 1. The short end of the L-shaped support plate 522 is fixedly connected to the connection block 521, and the long end of the L-shaped support plate 522 is fixedly connected to the top of the support ring 51. The connection block 521 and the L-shaped support plate 522 form the connection structure 52, which not only supports the housing 1 but also enhances the stability of the connection between the connection structure 52 and the housing 1. This avoids the problem of poor stability of the housing 1 caused by the provision of only one connection structure 52, which in turn affects the positioning accuracy of the device.

[0049] In some embodiments, as Figure 1 and Figure 2 As shown, a reserved hole 6 and two oppositely disposed perspective windows 7 are provided on the side wall of the housing 1. The reserved hole 6 and the perspective windows 7 are both disposed opposite the target ball located on the telescopic mechanism 2. The provision of the reserved hole 6 facilitates the user to place the target ball on the ball seat, and the provision of the two opposite perspective windows 7 facilitates the user to observe the position of the target ball using a laser tracker for positioning. Therefore, the provision of the reserved hole 6 and the perspective windows 7 facilitates the user to confirm the dot position using the device.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0051] While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0052] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A laser tracker coordinate positioning auxiliary device for assisting the laser tracker in determining the dotting point position within the dotting area, characterized in that: include: A shell is located above the dotting area and has an opening at its bottom facing the dotting area; a telescopic mechanism located within the housing and comprising a plurality of telescopic structures and seat petals connected and arranged in a one-to-one correspondence, wherein the plurality of seat petals can move closer to each other to form a ball seat for supporting a target ball, or move away from each other to form a channel for the target ball to pass through, under the telescopic action of the telescopic structure, and the ball seat or the channel is arranged opposite to the opening; The dotting mechanism includes a connected positioning screw and a dotting part. The positioning screw passes through the top of the shell and is threadedly connected to the top of the shell, and can move up and down along the axis of the ball seat or channel. The dotting part is arranged close to the telescopic mechanism.

2. A laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: It also includes a pressing mechanism, which is located above the telescopic mechanism and can move up and down along the axis of the ball seat or the channel to press down or release the pressure on the target ball on the ball seat, so that the telescopic structure can perform a telescopic effect.

3. The laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: It also includes a supporting mechanism, which includes a supporting ring and a connecting structure. One end of the connecting structure is fixedly connected to the outer wall of the shell, and the other end is fixedly connected to the supporting ring. The supporting ring is located below the shell, and the dotting area is located inside the supporting ring.

4. The laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: The telescopic structure includes a telescopic rod and a first spring. A stop block is provided at one end of the telescopic rod, and the other end passes through the side wall of the shell and enters the shell to be fixedly connected to the seat petal. The first spring is sleeved on the outer periphery of the telescopic rod, with one end fixedly connected to the seat petal and the other end fixedly connected to the inner wall of the shell.

5. The laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: An arcuate groove is provided on the top of one end of the seat petal away from the telescopic structure. When the plurality of seat petals are close to each other, the plurality of arcuate grooves form a circular groove adapted to the target ball.

6. The laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: The striking mechanism further includes an operating portion, which is located on the outer side of the top of the shell and is fixedly connected to an end of the positioning screw away from the striking portion.

7. The laser tracker coordinate positioning auxiliary device according to claim 2, characterized in that: The cam is fixedly mounted on the support frame and is provided with a protrusion which is arranged on the support frame so as to enable the cam to move relative to the support frame when the cam is in a state of rotation and the support frame, and the cam is fixedly mounted on the support frame.

8. The laser tracker coordinate positioning auxiliary device according to claim 7, characterized in that: The downward pressing mechanism also includes a circular plate and a second spring which are sleeved on the periphery of the limiting slide rod and located in the shell. The circular plate is fixedly connected to the limiting slide rod. One end of the second spring is fixedly connected to the circular plate, and the other end is fixedly connected to the top of the shell.

9. The laser tracker coordinate positioning auxiliary device according to claim 3, characterized in that: The connecting structure includes a connecting block and an L-shaped support plate, the connecting block is fixedly connected to the outer side wall of the shell, the short side end of the L-shaped support plate is fixedly connected to the connecting block, and the long side end of the L-shaped support plate is fixedly connected to the top of the support ring.

10. The laser tracker coordinate positioning auxiliary device according to claim 1, characterized in that: A reserved hole and two oppositely arranged perspective windows are provided on the side wall of the shell, and the reserved hole and the perspective windows are both arranged opposite to the target ball located on the telescopic mechanism.

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