Target ball seat tool matched with laser tracker to measure central position of hexagon bolt

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By designing a laser tracker matching device including a target ball bearing seat, a magnet, a loop slider and a centering ball, the problem of low efficiency and insufficient accuracy when measuring the center point of the hexagon bolt is solved, and the laser tracker is realized. High precision and high efficiency measurement.

CN222364542UInactive Publication Date: 2025-01-17CHINA GEZHOUBA GRP SURVEY DESIGN CO LTD

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Patent Information

Application Number: CN202420772629.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-15
Publication Date: 2025-01-17
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

When measuring the center point of the hexagon bolt, the existing laser trackers have low measurement efficiency and cumbersome data processing, making it impossible to achieve accurate measurement of sub-mm-level accuracy.

Method used

A target ball seat tooling with laser tracker is designed, including target ball seat, magnet, loop slider, centering ball and spring. Through these components, the automatic centering and precise positioning of the hexagon bolts are achieved to ensure measurement. Accuracy and efficiency.

Benefits of technology

It improves the accuracy and efficiency of the center point measurement of hexagon bolts, simplifies the operation process, and ensures accurate positioning within the full range of the laser tracker, and is suitable for large metal structures and equipment installation projects.

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Abstract

The utility model provides a target ball seat tool matched with a laser tracker to measure the central position of a hexagon bolt. The target ball seat tool comprises a target ball bearing seat which is sleeved and positioned at the top of the hexagon bolt and is used for supporting and positioning a target ball; a magnet for magnetically attracting and fixing the target ball is mounted in the target ball bearing seat; a lantern ring sliding block is sleeved outside the target ball bearing seat; a spring is arranged between the matching cavities of the lantern ring sliding block and the target ball bearing seat; a baffle ring used for limiting the lantern ring sliding block is installed on the outer wall of the lower portion of the target ball bearing base. A plurality of groups of centering rolling balls are mounted in the target ball bearing seat and at the part matched with the outer wall of the top of the hexagon bolt; and the plurality of groups of centering rolling balls are circumferentially and uniformly arranged along the radial direction of the target ball bearing seat. The tool can be applied to precision measurement work of installation and maintenance of large-scale metal structures such as ship locks or large-scale equipment, and can be matched with a target ball of a laser tracker to complete a hexagon bolt center point measurement task.

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Description

Technical Field

[0001] The utility model relates to the technical field of laser precision measurement, in particular to a target ball seat tooling for measuring the central position of a hexagonal bolt in cooperation with a laser tracker. Background Art

[0002] Laser tracker is a high-precision three-dimensional polar coordinate measuring instrument. In order to ensure the measurement accuracy, a corner cube prism target is generally used as its cooperative target. The target has no point device and cannot perform accurate measurement and layout of points.

[0003] In metal structures such as ship locks or large equipment installation projects, the center point of hexagonal bolts needs to be measured with sub-millimeter accuracy. For the measurement of the center coordinates of hexagonal bolts, the common method is to measure multiple points around the bolt cap and then use the data fitting method to calculate the coordinates of the bolt center point. This measurement method has low measurement efficiency and the data processing process is relatively cumbersome.

[0004] In order to improve work efficiency and ensure measurement accuracy, a cooperative target is needed that can accurately align the center point of the bolt. This cooperative target should be able to be used within the full range of the laser tracker, and it should be easy to operate and accurately positioned. Utility Model Content

[0005] In order to solve the current technical problems, the main purpose of the utility model is to provide a target ball seat tooling for cooperating with a laser tracker to measure the center position of a hexagonal bolt. This tooling can be used in the precision measurement work of large metal structures such as locks or large equipment installation and maintenance. It can complete the task of measuring the center point of the hexagonal bolt in conjunction with the laser tracker target ball. It can be used within the full range of the laser tracker, and it is easy to operate and has accurate positioning.

[0006] In order to realize the above-mentioned technical features, the purpose of the utility model is achieved as follows: a target ball seat tooling for cooperating with a laser tracker to measure the center position of a hexagonal bolt, comprising a target ball receiving seat for being fitted and positioned on the top of the hexagonal bolt and supporting and positioning the target ball; a magnet for magnetically fixing the target ball is installed inside the target ball receiving seat; a collar slider is fitted on the outside of the target ball receiving seat; a spring is arranged between the matching cavity of the collar slider and the target ball receiving seat; a retaining ring for limiting the collar slider is installed on the lower outer wall of the target ball receiving seat; a plurality of groups of centering balls are installed inside the target ball receiving seat and at a position matching with the outer wall of the top of the hexagonal bolt; the plurality of groups of centering balls are evenly arranged circumferentially and along the radial direction of the target ball receiving seat.

[0007] A conical support interface is processed at the top center portion of the target ball receiving seat, and the conical support interface cooperates with the outer wall of the target ball. A magnet mounting groove is arranged at the bottom end of the conical support interface, and a magnet supporting step is formed at the bottom end of the magnet mounting groove. A hexagonal positioning hole is processed at the bottom center portion of the target ball receiving seat, and the hexagonal positioning hole is used to cooperate with the outside of the hexagonal bolt; a radially arranged ball hole is processed at the middle portion of the side where each straight edge of the hexagonal positioning hole is located, and the inside of the ball hole is used to install a centering ball; a first spring positioning cavity for a mounted spring is processed at the outside of the target ball receiving seat; a retaining ring groove is processed on the lower outer wall of the first spring positioning cavity, and the retaining ring groove cooperates with the retaining ring.

[0008] The top corner of the hexagonal positioning hole is processed with an arc-shaped groove, and the arc-shaped groove matches the vertical edge line of the hexagonal bolt to be matched.

[0009] The ball hole is provided with a conical limiting portion at the end where the hexagonal positioning hole is located, and the inner diameter of the conical limiting portion is smaller than the outer diameter of the centering ball.

[0010] The retaining ring is an elastic clamping ring.

[0011] The inner top of the ring slider is processed with a second spring positioning cavity for installing the spring, and the bottom end of the second spring positioning cavity forms a spring supporting step. The bottom ends of the spring supporting step are a straight-wall cavity, an arc-shaped cavity and an end cavity in sequence, and the inner diameter of the end cavity is larger than the inner diameter of the straight-wall cavity.

[0012] The arc-shaped cavity transitionally connects the straight-wall cavity and the end cavity.

[0013] The number of the hexagonal positioning holes is six;

[0014] The number of centering balls in a single hexagonal positioning hole is at least one.

[0015] The inner wall of the arc-shaped groove is in an arc shape.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model has developed a target ball seat fixture that cooperates with a laser tracker to measure the center position of a hexagonal bolt. This fixture combines the target ball bearing interface with the hexagonal bolt sleeve, and places a centering ball in the sleeve wall to achieve an automatic centering function, thereby ensuring measurement accuracy and operating efficiency.

[0018] 2. The utility model of this tooling provides a solution for using a laser tracker to measure the center point of hexagonal bolts in metal installation projects, overcoming the difficulty of the target ball being unable to calibrate the point, making the measurement work of the laser tracker convenient and quick.

[0019] 3. The target ball receiving seat can be used to cooperate with the hexagonal bolts on the one hand, and can be used to reliably fix and install the target ball on the other hand.

[0020] 4. The above-mentioned arc-shaped groove has a certain positioning effect, which facilitates the subsequent centering adjustment between the target ball receiving seat and the top of the hexagonal bolt.

[0021] 5. The conical limiting portion can block and limit the centering ball to prevent it from falling off from the hexagonal positioning hole.

[0022] 6. The elastic clamping ring mentioned above facilitates the subsequent limiting of the sleeve slider to prevent it from falling off.

[0023] 7. The target ball receiving seat can be centered by using the cooperation between the sleeve ring slider and multiple sets of centering balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is the main sectional view of the utility model.

[0026] Figure 2 It is a top view of the target ball receiving seat of the utility model.

[0027] Figure 3 This utility model Figure 2 AA view of the target ball socket.

[0028] Figure 4 This utility model Figure 3 BB view of the target ball socket.

[0029] Figure 5 This utility model Figure 4 Partial view C of the target ball socket.

[0030] Figure 6 It is a top view of the sleeve ring slider of the utility model.

[0031] Figure 7 This utility model Figure 6 Middle collar slider DD view.

[0032] In the figure: target ball receiving seat 1, sleeve ring slider 2, spring 3, centering ball 4, magnet 5;

[0033] Conical support interface 101, magnet installation groove 102, magnet support step 103, first spring positioning cavity 104, ball hole 105, retaining ring groove 106, hexagonal positioning hole 107, arc groove 108, conical limiting portion 109;

[0034] The second spring positioning cavity 201 , the end cavity 202 , the arc-shaped cavity 203 , the straight-wall cavity 204 , and the spring supporting step 205 . DETAILED DESCRIPTION

[0035] The implementation modes of the present utility model are further described below in conjunction with the accompanying drawings.

[0036] Embodiment 1:

[0037] See also Figure 1-7 , a target ball seat tooling for cooperating with a laser tracker to measure the center position of a hexagonal bolt, including a target ball receiving seat 1 for being set and positioned on the top of the hexagonal bolt and supporting and positioning the target ball; a magnet 5 for magnetically fixing the target ball is installed inside the target ball receiving seat 1; a collar slider 2 is set on the outside of the target ball receiving seat 1; a spring 3 is arranged between the matching cavity of the collar slider 2 and the target ball receiving seat 1; a retaining ring 6 for limiting the collar slider 2 is installed on the lower outer wall of the target ball receiving seat 1; multiple groups of centering balls 4 are installed inside the target ball receiving seat 1 and at the position matching with the top outer wall of the hexagonal bolt; multiple groups of centering balls 4 are evenly arranged in a circle and arranged along the radial direction of the target ball receiving seat 1. This tooling can be used in the precision measurement work of large metal structures such as ship locks or large equipment installation and maintenance. It can complete the task of measuring the center point of the hexagonal bolt in cooperation with the target ball of the laser tracker. It can be used within the full range of the laser tracker, and it is easy to operate and has accurate positioning. During specific use, the target ball socket 1 is installed on the top of the hexagonal bolt, and the centering of the two is ensured by multiple sets of centering balls 4, and then the locking positioning is achieved by the ring slider 2. Finally, the target ball is placed on the top of the target ball socket 1 and measured by a laser tracker to achieve the purpose of measuring the center of the hexagonal bolt.

[0038] Furthermore, a conical support interface 101 is processed at the top center portion of the target ball receiving seat 1, and the conical support interface 101 cooperates with the outer wall of the target ball. A magnet mounting groove 102 is provided at the bottom end of the conical support interface 101, and a magnet supporting step 103 is formed at the bottom end of the magnet mounting groove 102. A hexagonal positioning hole 107 is processed at the bottom center portion of the target ball receiving seat 1, and the hexagonal positioning hole 107 is used to cooperate with the outside of the hexagonal bolt; a radially arranged ball hole 105 is processed at the middle portion of the side where each straight edge of the hexagonal positioning hole 107 is located, and the inside of the ball hole 105 is used to install the centering ball 4; a first spring positioning cavity 104 for mounting the spring 3 is processed on the outside of the target ball receiving seat 1; a retaining ring groove 106 is processed on the lower outer wall of the first spring positioning cavity 104, and the retaining ring groove 106 cooperates with the retaining ring 6. The target ball receiving seat 1 can be used to match with the hexagonal bolts on the one hand, and can be used to reliably fix and install the target ball on the other hand. The tapered support interface 101 ensures the reliability of the positioning of the target ball, and the magnet installation groove 102 can realize the fixed installation of the magnet, and the hexagonal positioning hole 107 is convenient for matching with the hexagonal head of the hexagonal bolt. The ball hole 105 is convenient for installing the centering ball 4. The retaining ring groove 106 is convenient for fixing and installing the retaining ring 6.

[0039] Furthermore, the top corner of the hexagonal positioning hole 107 is processed with an arc groove 108, which matches the vertical edge of the hexagonal bolt to be matched. The arc groove 108 has a certain positioning effect, which facilitates the subsequent centering adjustment between the target ball receiving seat 1 and the top of the hexagonal bolt.

[0040] Furthermore, the ball hole 105 is provided with a conical stopper 109 at the end where the hexagonal positioning hole 107 is located, and the inner diameter of the conical stopper 109 is smaller than the outer diameter of the centering ball 4. The conical stopper 109 can block and stop the centering ball 4 to prevent it from falling off from the hexagonal positioning hole 107.

[0041] Furthermore, the retaining ring 6 is an elastic snap ring, which facilitates the subsequent positioning of the sleeve slide block 2 to prevent it from falling off.

[0042] Furthermore, the inner top of the collar slider 2 is processed with a second spring positioning cavity 201 for installing the spring 3, and the bottom end of the second spring positioning cavity 201 forms a spring support step 205, and the bottom end of the spring support step 205 is sequentially a straight wall cavity 204, an arc cavity 203 and an end cavity 202, and the inner diameter of the end cavity 202 is larger than the inner diameter of the straight wall cavity 204. The collar slider 2 is convenient for subsequent cooperation with the centering ball 4, and then the centering ball 4 is pushed out synchronously to press the outer wall of the hexagonal bolt, thereby realizing the center positioning of the target ball receiving seat 1.

[0043] Furthermore, the arc-shaped cavity 203 transitionally connects the straight-wall cavity 204 and the end cavity 202. The arc-shaped cavity 203 facilitates the subsequent pressing of the centering ball 4.

[0044] Furthermore, there are six hexagonal positioning holes 107. By using six groups of hexagonal positioning holes 107, six outer walls of the hexagonal bolt can be exactly fitted and positioned.

[0045] Furthermore, the number of the centering ball 4 inside a single hexagonal positioning hole 107 is at least one.

[0046] Furthermore, the inner wall of the arc-shaped groove 108 is in an arc shape, which facilitates subsequent assembly.

[0047] Embodiment 2:

[0048] A method for using a target ball seat tooling for measuring the center position of a hexagonal bolt in conjunction with a laser tracker, comprising the following steps:

[0049] Step 1, installation of spring 3:

[0050] Put the spring 3 on the outside of the target ball receiving seat 1;

[0051] Step 2, installation of centering ball 4:

[0052] Place multiple sets of centering balls 4 into the target ball receiving seat 1;

[0053] Step 3, installation of collar slider 2:

[0054] The sleeve ring slider 2 is sleeved on the outside of the target ball receiving seat 1, and is sleeved on the outside of the spring 3;

[0055] Step 4, installation of retaining ring 6:

[0056] Press the ring slider 2 to expose the installation position of the retaining ring 6, and then put the retaining ring 6 on the lower part of the target ball receiving seat 1;

[0057] Step 5, installation of magnet 5:

[0058] The magnet 5 is positioned and installed inside the target ball receiving seat 1;

[0059] Step 6: Positioning and installation of target ball receiving seat 1 and hexagonal bolts:

[0060] When it is necessary to measure the coordinates of the center point of the hexagonal bolt on the large equipment, first slide and compress the collar slider 2 to release the obstruction of the centering ball 4, so that the centering ball 4 returns to the inside of the target ball receiving seat 1, and then, the target ball receiving seat 1 is sleeved on the top of the hexagonal bolt, and finally, slide the collar slider 2 again, and push the centering ball 4 through the collar slider 2, so that the centering ball 4 contacts and positions the outer wall of the hexagonal bolt, and ensure that the entire target ball receiving seat 1 coincides with the center position of the hexagonal bolt;

[0061] Step 7, installation of target ball:

[0062] Place the target ball directly on the top of the target ball receiving seat 1, and fix the target ball by magnetic attraction through the magnet 5;

[0063] Step 8, laser tracker measurement:

[0064] The center position of the hexagonal bolt is measured by using a laser tracker in conjunction with a target ball.

Claims

1. A target ball seat tooling for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: The invention comprises a target ball receiving seat (1) for being mounted on the top of a hexagonal bolt and supporting and positioning a target ball; a magnet (5) for magnetically fixing the target ball is installed inside the target ball receiving seat (1); a collar slider (2) is mounted outside the target ball receiving seat (1); a spring (3) is arranged between the collar slider (2) and the matching cavity of the target ball receiving seat (1); a retaining ring (6) for limiting the collar slider (2) is installed on the lower outer wall of the target ball receiving seat (1); a plurality of groups of centering balls (4) are installed inside the target ball receiving seat (1) and at a position matching with the outer wall of the top of the hexagonal bolt; the plurality of groups of centering balls (4) are evenly arranged in a circumference and arranged along the radial direction of the target ball receiving seat (1).

2. According to claim 1, a target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: The target ball receiving seat (1) is provided with a conical support interface (101) at the top center portion thereof, the conical support interface (101) being matched with the outer wall of the target ball, a magnet mounting groove (102) being provided at the bottom end of the conical support interface (101), the bottom end of the magnet mounting groove (102) forming a magnet supporting step (103), a hexagonal positioning hole (107) being provided at the bottom center portion thereof, the hexagonal positioning hole (107) being used to match with the outside of the hexagonal bolt; a radially arranged ball hole (105) being provided at the middle portion of each straight side of the hexagonal positioning hole (107), the inside of the ball hole (105) being used to install a centering ball (4); a first spring positioning cavity (104) for mounting a spring (3) is provided at the outside of the target ball receiving seat (1); a retaining ring groove (106) is provided on the lower outer wall of the first spring positioning cavity (104), the retaining ring groove (106) being matched with the retaining ring (6).

3. According to claim 2, a target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: An arc-shaped groove (108) is processed at the top corner of the hexagonal positioning hole (107), and the arc-shaped groove (108) matches the vertical edge line of the hexagonal bolt to be matched.

4. According to claim 2, a target ball seat tooling for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: The ball hole (105) is provided with a conical limiting portion (109) at the end where the hexagonal positioning hole (107) is located, and the inner diameter of the conical limiting portion (109) is smaller than the outer diameter of the centering ball (4).

5. According to claim 2, a target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: The retaining ring (6) is an elastic retaining ring.

6. According to claim 1, a target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker, characterized in that: The inner top of the collar slider (2) is processed with a second spring positioning cavity (201) for installing a spring (3), the bottom end of the second spring positioning cavity (201) forms a spring supporting step (205), the bottom end of the spring supporting step (205) is sequentially a straight-wall cavity (204), an arc-shaped cavity (203) and an end cavity (202), and the inner diameter of the end cavity (202) is larger than the inner diameter of the straight-wall cavity (204).

7. The target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker according to claim 6, characterized in that: The arc-shaped cavity (203) transitionally connects the straight-wall cavity (204) and the end cavity (202).

8. The target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker according to claim 2, characterized in that: The number of the hexagonal positioning holes (107) is six.

9. The target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker according to claim 2, characterized in that: The number of the centering ball (4) inside a single hexagonal positioning hole (107) is at least one.

10. The target ball seat fixture for measuring the center position of a hexagonal bolt in cooperation with a laser tracker according to claim 3, characterized in that: The inner wall of the arc-shaped groove (108) is in an arc shape.