Embedded permanent reference point based on laser tracker

Abstract

An embedded permanent reference point based on a laser tracker comprises a target ball seat, a fixed seat, an aligner and an embedded column. The target ball seat is provided with a first mounting groove for mounting a target ball of the laser tracker; the fixed seat is provided with a second mounting groove which is used for mounting the target ball seat and allowing the target ball seat to move in the fixed seat along the direction perpendicular to the reference line; the aligner is arranged in the fixed seat and is used for adjusting the position precision of the target ball seat; and the embedded column is embedded in a foundation and is connected with the fixed seat. The target ball seat and the embedding seat are provided with the aligners, so that when the target ball seat can be finely adjusted and a permanent reference point is installed, the precision requirement of ground punching can be reduced, and the embedding and putting difficulty of the permanent reference point can be reduced; the target ball seat and the embedded seat are combined to form the permanent reference point which is suitable for the high-precision laser tracker, and the precision of the permanent reference point is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical equipment installation reference point facilities, and in particular to a buried permanent reference point based on a laser tracker. Background Technology

[0002] Establishing permanent benchmarks is essential for equipment installation, as all installations are based on these benchmarks. Benchmarks are generally categorized as elevation points and center points. The traditional steps for establishing permanent benchmarks are: rough surveying to determine the approximate location, drilling, burying the permanent target, and marking the target. Marking is typically done using a theodolite or total station, or manually; this method is limited by instrument accuracy and manual marking skills, resulting in a single-point accuracy of 0.5~1mm. With the development of equipment, high-precision equipment demands extremely high installation accuracy, with many requiring an installation precision of 0.02mm; traditional permanent targets can no longer meet this requirement. While measuring instruments with accuracy up to 15µm, such as laser trackers, exist, there is a lack of corresponding permanent benchmark placement techniques. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a buried permanent reference point based on a laser tracker. The specific technical solution is as follows:

[0004] A type of embedded permanent reference point based on a laser tracker includes:

[0005] The target ball holder has a first mounting slot for mounting the target ball of the laser tracker.

[0006] The fixed base has a second mounting groove for mounting the target ball seat and allowing it to move within the fixed base in a direction perpendicular to the reference line;

[0007] The alignment device, installed within the fixed base, is used to adjust the positional accuracy of the target ball seat; and

[0008] The column is embedded in the foundation and connected to the fixed base.

[0009] Furthermore, a limiting seat for locking and positioning the target ball is provided in the first mounting groove.

[0010] Furthermore, the target ball seat is connected to the fixed seat by bolts.

[0011] Furthermore, bolt holes matching the bolts are provided around the target ball seat.

[0012] Furthermore, the fixed base is provided with an elongated bolt hole corresponding to the position of the bolt hole, and the length direction of the elongated bolt hole is consistent with the direction in which the target ball base can move.

[0013] Furthermore, the two pairs of sides of the fixing base are provided with positioning grooves for placing nuts. The positioning grooves are aligned with the length direction of the elongated bolt holes and are connected to the elongated bolt holes. The bolt shank extends into the positioning grooves and is connected to the nuts.

[0014] Furthermore, the nut is a square nut or a hexagonal nut, and the width of the positioning groove restricts the nut from rotating within it.

[0015] Furthermore, the adjusting device is a pair of set screws respectively installed on two pairs of sides of the fixed base, and the set screws extend into the second mounting groove.

[0016] Furthermore, a third mounting slot for placing a level is provided in the second mounting slot.

[0017] Furthermore, the embedded column is welded to the fixed base, and the embedded column is intermittently provided with limiting rings to enhance the grip.

[0018] Beneficial effects:

[0019] The target ball base and embedding base of this utility model are equipped with an adjustment device, which allows the target ball base to be finely adjusted. When installing permanent reference points, the accuracy requirements for drilling holes in the ground can be reduced, and the difficulty of embedding and placing permanent reference points can be reduced. Combining the target ball base and embedding base to form a permanent reference point is suitable for high-precision laser trackers and greatly improves the accuracy of permanent reference points. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0021] Figure 2 This is an exploded view of the present invention.

[0022] Figure 3 This is a schematic diagram of the target ball holder of this utility model.

[0023] Figure 4 This is a schematic diagram of the fixing base of this utility model.

[0024] In the diagram: 1 target ball seat, 11 first mounting groove, 12 limiting seat, 13 bolt hole; 2 fixing seat, 21 second mounting groove, 22 long oval bolt hole, 23 positioning groove, 24 third mounting groove; 3 set screw; 4 embedded column, 41 limiting ring; 5 bolt. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] like Figures 1 to 4 As shown, a type of embedded permanent reference point based on a laser tracker includes a target ball base 1, a fixing base 2, an adjusting device, and an embedded column 4; wherein:

[0029] The target ball holder 1 has a first mounting groove 11 for mounting the target ball of the laser tracker, so as to obtain the center coordinates of the ball using the target ball.

[0030] The fixed base 2 has a second mounting groove 21 for mounting the target ball seat 1 and allowing it to move within the fixed base 2 in a direction perpendicular to the baseline, so as to determine the position of the reference point after adjustment.

[0031] The alignment device is installed in the fixed base 2 to adjust the positional accuracy of the target ball base 1 so that the reference point corresponds to the center coordinates of the target ball.

[0032] The embedded column 4 is embedded in the foundation and connected to the fixed seat 2 so that the fixed seat 2 is permanently embedded and fixed on the foundation, and is used in conjunction with the target ball seat 1 to form a permanent reference point.

[0033] like Figure 1 , 3 As shown, a limiting seat 12 for locking and positioning the target ball is provided in the first mounting groove 11.

[0034] Specifically, the laser tracker uses a 1.5-inch high-precision hollow target ball. To accommodate the installation of the target ball, the first mounting groove 11 is cylindrical with a radius of 35mm and a depth of 5mm. Three limiting seats 12 are provided, each shaped as a right trapezoid with an inclined top surface. The depth corresponding to the outer end of the inclined surface is 2mm, ensuring that when the target ball is installed on the target ball seat 1, its target center is concentric with the first mounting groove 11, thereby using the target ball to obtain coordinates.

[0035] like Figure 2 , 3 As shown, the target ball seat 1 is connected to the fixed seat 2 by bolts 5.

[0036] Specifically, the target ball seat 1 has bolt holes 13 that match the bolts 5 through its circumference, and the fixed seat 2 has elongated bolt holes 22 that correspond to the positions of the bolt holes 13. The length direction of the elongated bolt holes 22 is consistent with the direction in which the target ball seat 1 can move.

[0037] After the bolt 5 passes through the bolt hole 13, it is inserted into the elongated bolt hole 22. When the target ball seat 1 moves, it drives the bolt 5 to move together in the elongated bolt hole 22, thereby adjusting the position of the target ball seat 1.

[0038] In one embodiment, the two pairs of sides of the fixed base 2 are provided with positioning grooves 23 for placing nuts. The direction of the positioning grooves 23 is consistent with the length direction of the elongated bolt hole 22 and is connected to the elongated bolt hole 22. The bolt 5 extends into the positioning grooves 23, so that the nut can be threadedly connected to the bolt to lock the target ball seat 1 onto the fixed base 2.

[0039] In another embodiment, the nut is a square nut or a hexagonal nut, and the width of the positioning groove 23 restricts the rotation of the nut within it; after the nut is placed in the positioning groove 23, the nut is restricted from rotating so that the bolt 5 can be threadedly connected to the nut.

[0040] like Figure 2 , 4 As shown, the adjusting device is a pair of set screws 3 respectively installed on two pairs of sides of the fixed base 2, and the set screws 3 extend into the second mounting groove 21.

[0041] To meet the installation requirements of high-precision equipment, the position of the target ball holder 1 must meet the installation accuracy requirements of the reference point determined after the target ball is installed. The reference point coordinates determined by the center of the target ball are O(x, y). The y-coordinate determines the position of the baseline, and the x-coordinate is the position that the target ball holder 1 needs to be adjusted to achieve. The set screws 3 are installed on two pairs of sides of the fixed base 2 perpendicular to the baseline direction. Rotating the set screws 3 adjusts the positional accuracy of the target ball holder 1 in the x-coordinate direction, ensuring that the coordinates read from the target ball meet the accuracy requirements of the actual reference point coordinates, thereby reducing the difficulty of burying and deploying the permanent reference point.

[0042] Preferably, a third mounting groove 24 for placing a level is provided in the second mounting groove 21, thereby ensuring the levelness of the embedded fixing seat 2 and further improving the accuracy of the target ball seat 1 position adjustment.

[0043] like Figure 1 As shown, the embedded post 4 is welded to the fixing seat 2, or it can be manufactured by integral casting. The embedded post 4 is intermittently provided with limiting rings 41 to enhance the grip. Of course, other methods can also be used to enhance the grip of the embedded post 4 and prevent the embedded post 4 from loosening or shifting.

[0044] The specific implementation steps are as follows:

[0045] (1) First, use a laser tracker to determine the location of the permanent reference point, and mark the location with a marker.

[0046] (2) Using the marked point as the center, use a water drill to drill a hole suitable for burying the column 4.

[0047] (3) Place the buried column 4 into the buried hole and grout it. Adjust the position so that the second placement groove is roughly concentric with the mark point. Before the grout solidifies, place the level in the third installation groove 24 to check the levelness.

[0048] (4) After the grout has solidified, use bolts 5 and nuts to pre-connect the target ball seat 1 and the fixed seat 2.

[0049] (5) Install the laser tracker target ball on the target ball seat 1, and judge whether the position of the target ball seat 1 meets the requirements according to the coordinates determined by the target ball; if the position of the target ball seat 1 needs to be adjusted, rotate the corresponding set screw 3 to make the target ball seat 1 closer to the target position.

[0050] (6) Further adjust the position of the target ball seat 1 using the set screw 3 so that the coordinate x position determined by the target ball in the target ball seat 1 is no more than 0.01 mm from the target position of the reference point.

[0051] (7) Tighten bolt 5 gradually and repeat steps (5) and (6) until the coordinate x position determined by the position of target ball seat 1 meets the accuracy requirements of the reference point target position error.

[0052] (8) Use structural adhesive to fill the gap between the target ball seat 1 and the embedded seat to form an embedded permanent reference point for equipment installation.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of embedded permanent reference point based on a laser tracker, characterized in that, include: The target ball holder has a first mounting slot for mounting the target ball of the laser tracker. The fixed base has a second mounting groove for mounting the target ball seat and allowing it to move within the fixed base in a direction perpendicular to the reference line; The alignment device, installed in the fixed base, is used to adjust the positional accuracy of the target ball seat; and The column is embedded in the foundation and connected to the fixed base.

2. A laser tracker based buried permanent reference point according to claim 1, wherein, The first mounting slot is provided with a limiting seat for locking and positioning the target ball.

3. A laser tracker based buried permanent reference point according to claim 1, wherein, The target ball seat is connected to the fixed seat by bolts.

4. A laser tracker based, buried, permanent reference point according to claim 3, wherein, The target ball seat has bolt holes that match the bolts, which are opened through the perimeter.

5. A laser tracker based buried permanent reference point according to claim 4, wherein, The fixed base has an elongated bolt hole corresponding to the position of the bolt hole, and the length direction of the elongated bolt hole is consistent with the direction in which the target ball base can move.

6. A laser tracker based buried permanent reference point according to claim 5, wherein, The fixing base has positioning grooves on two pairs of sides for placing nuts. The positioning grooves are aligned with the length direction of the elongated bolt holes and are connected to the elongated bolt holes. The bolt shank extends into the positioning grooves and is connected to the nuts.

7. A laser tracker based buried permanent reference point according to claim 6, wherein, The nut is a square nut or a hexagonal nut, and the width of the positioning groove restricts the rotation of the nut within it.

8. A laser tracker based buried permanent reference point according to claim 1, wherein, The adjusting device is a pair of set screws respectively installed on two pairs of sides of the fixed base, and the set screws extend into the second mounting groove.

9. A laser tracker based buried permanent reference point according to claim 1, wherein, The second mounting slot has a third mounting slot for placing a level.

10. A laser tracker based buried permanent reference point according to claim 1, wherein, The embedded column is welded to the fixed base, and the embedded column is intermittently provided with limiting rings to enhance the grip.

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