A laser tracker-based oblong hole skin lug locator and method

Abstract

The present invention discloses an oblong hole skin lug locator and method based on laser tracker installation. The device comprises a positioning angle seat (1), a bushing (2) and a cylindrical pin (3); the positioning angle seat (1) is provided with a bushing mounting hole (11), and a positioning pin mounting hole (12) is provided next to the bushing mounting hole (11); an oblong inner hole (21) is provided on the central axis of the bushing (2), and a guide groove (22) is provided on the edge of the bushing (2); after the bushing (2) is installed in the bushing mounting hole (11), the positioning pin mounting hole (12) is aligned with the guide groove (22), and the cylindrical pin (3) can be inserted. The present invention solves the problem of accurate installation and position detection of the skin locator, and solves the problem of inconsistent hole positions of the skin locating holes.

Description

Technical Field

[0001] The invention belongs to the technical field of process equipment, and in particular relates to an oblong hole skin lug locator and method based on laser tracker installation. Background Art

[0002] At present, when the aircraft skin is delivered for assembly, the edge of the part has two skin lugs with skin positioning holes for positioning on the process equipment. Generally, two round-hole skin lug locators are set on the process equipment to position the skin. Due to the cumulative deviations caused by manufacturing and installation, ambient temperature, skin strength and other factors, the skin positioning holes and the locators are not coordinated when the skin is positioned. In order to solve the problem of the incoordination between the skin positioning holes and the locator holes, it is necessary to improve the method of positioning the skin using two round-hole skin lug locators. Summary of the invention

[0003] The purpose of the present invention is to provide a long circular hole skin lug locator and method based on laser tracker installation. The present invention solves the problem of accurate installation and position detection of the skin locator and the problem of inconsistent hole positions of the skin locating holes.

[0004] The technical solution of the present invention is: a long oval hole skin lug locator installed based on a laser tracker, including a positioning angle seat, a bushing and a cylindrical pin; a bushing mounting hole is provided on the positioning angle seat, and a positioning pin mounting hole is provided next to the bushing mounting hole; an long oval inner hole is provided on the central axis of the bushing, and a guide groove is provided on the edge of the bushing; after the bushing is installed in the bushing mounting hole, the positioning pin mounting hole is aligned with the guide groove, and the cylindrical pin can be inserted.

[0005] In the aforementioned oblong hole skin lug locator installed based on the laser tracker, the positioning angle seat is provided with a boss protruding outward; the bushing mounting hole and the positioning pin mounting hole are both arranged on the boss.

[0006] In the aforementioned oblong hole skin lug locator installed based on the laser tracker, a tooling connection hole is also provided on the positioning angle seat.

[0007] The method for using the aforementioned oblong hole skin lug locator based on laser tracker installation is to install the positioning angle seat on the tooling, and use the laser tracker to locate its specific position on the tooling; after positioning and installation, insert the bushing into the bushing mounting hole and align the positioning pin mounting hole with the guide groove, and after alignment, insert the cylindrical pin to complete the positioning installation of the bushing; after completing the positioning and installation, align the positioning hole on the skin lug with the oblong inner hole on the bushing, and then the skin can be positioned and installed.

[0008] In the aforementioned method of using the oblong hole skin lug locator based on laser tracker installation, the positioning method of the positioning angle seat on the tooling is: insert the single-point target ball into the positioning pin mounting hole, insert the double-point target ball into the bushing mounting hole, adjust the single- and double-point target balls in the laser coordinate system formed by the TB seat of the tooling, and realize the positioning of the positioning angle seat on the tooling.

[0009] In the aforementioned method of using the oblong hole skin lug locator based on the laser tracker installation, after completing the positioning of the positioning angle seat, the single and double point target balls need to be removed, and then the bushing is positioned and installed.

[0010] In the aforementioned method of using the oblong hole skin lug locator based on laser tracker installation, the positioning angle seat is connected to the tooling by bolts passing through the tooling connection holes.

[0011] In the aforementioned method of using the oblong hole skin lug locator based on laser tracker installation, when performing regular inspections on the locating angle seat on the tooling, remove the bushing and cylindrical pin, install single-point target balls and double-point target balls in the locating pin mounting holes and bushing mounting holes respectively, measure the positions of the single- and double-point target balls in the laser coordinate system of the tooling TB seat, and realize the detection of the locating angle seat.

[0012] The advantages of the present invention are as follows: compared with the prior art, the present invention provides an oblong hole skin lug locator based on a laser tracker, which solves the problem of accurate installation and position detection of the skin locator and the problem of inconsistent positions of the skin locating holes. The oblong hole skin lug locator based on a laser tracker is easy to install and has high installation accuracy. The position after installation can be reviewed and detected, and the detection method is simple and the result is intuitive.

[0013] Specifically, the present invention uses a skin lug locator including an oblong inner hole to locate the skin. The oblong inner hole releases the degree of freedom in one direction, eliminating the problem of inconsistent positions of the skin positioning holes. The present invention uses the process hole of the positioning measurement point where the positioning angle seat 1 is installed on the tooling and the process hole for skin positioning (that is, the bushing mounting hole and the positioning pin mounting hole are used for two purposes), which greatly reduces the structural volume of the positioning angle seat 1 and improves the structural compactness of the tooling; at the same time, one hole is used for two purposes, unifies the positioning reference, eliminates error accumulation, and greatly improves the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the oblong hole skin lug locator installed based on the laser tracker;

[0015] Figure 2 It is a schematic diagram of the positioning angle seat structure;

[0016] Figure 3 This is a schematic diagram of the structure of a fixed bushing with an oblong inner hole;

[0017] Figure 4 Schematic diagram of cylindrical pin structure;

[0018] Figure 5 This is a schematic diagram of the installation of a single-point target ball;

[0019] Figure 6 This is a schematic diagram of the installation of a double-point target ball;

[0020] Figure 7 This is a schematic diagram of installing the skin on the tooling;

[0021] Figure 8 Schematic diagram of the positioning and installation of the skin lugs.

[0022] Among them: 1-positioning angle seat, 11-bushing mounting hole, 12-positioning pin mounting hole, 13-boss, 14-tooling connection hole, 2-long round inner hole fixing bushing, 21-long round inner hole, 22-guide groove, 3-cylindrical pin, 4-single-point target ball, 5-double-point target ball, 6-tooling, 7-skin lug, 8-skin, 9-TB seat. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] Example 1. A laser tracker-based oblong hole skin lug locator, see Figure 1-8 , including a positioning angle seat 1, a bushing 2 and a cylindrical pin 3; the positioning angle seat 1 is provided with a bushing mounting hole 11, and a positioning pin mounting hole 12 is provided next to the bushing mounting hole 11; an oblong inner hole 21 is provided on the central axis of the bushing 2, and a guide groove 22 is provided on the edge of the bushing 2; after the bushing 2 is installed in the bushing mounting hole 11, the positioning pin mounting hole 12 is aligned with the guide groove 22, and the cylindrical pin 3 can be inserted.

[0025] The method of using the oblong hole skin lug locator is as follows: install the positioning angle seat 1 on the tooling, and use a laser tracker to locate its specific position on the tooling; after positioning and installation, install the bushing 2 into the bushing mounting hole 11 and align the positioning pin mounting hole 12 with the guide groove 22, and after alignment, insert the cylindrical pin 3 to complete the positioning and installation of the bushing 2; after completing the positioning and installation, align the positioning hole on the skin lug 7 with the oblong inner hole 21 on the bushing 2, and then the skin 8 can be positioned and installed.

[0026] The positioning method of the positioning angle seat 1 on the tooling 6 is as follows: insert the double-point target ball 5 into the bushing mounting hole 11, and use the double-point target ball to adjust the posture in the laser coordinate system formed by the TB seat 9 of the tooling 6; remove the double-point target ball 5, insert the single-point target ball 4 into the positioning pin mounting hole 12, and adjust the posture again to achieve the positioning of the positioning angle seat 1 on the tooling 6. After completing the positioning of the positioning angle seat 1, remove the single-point target ball, and then perform the positioning installation of the bushing 2.

[0027] One hole has two functions, which can reduce the structural volume of the positioning angle seat 1 and unify the reference to improve the positioning accuracy.

[0028] The aforementioned positioning angle seat 1 is provided with a boss 13 protruding outward; the bushing mounting hole 11 and the positioning pin mounting hole 12 are both arranged on the boss 13 .

[0029] The aforementioned positioning angle seat 1 is also provided with a tooling connection hole 14 .

[0030] The positioning angle seat 1 is connected to the fixture 6 by bolts passing through the fixture connection holes 14.

[0031] During regular inspection of the locating angle seat 1 on the tooling 6, remove the bushing 2 and the cylindrical pin 3, install the single-point target ball 4 and the double-point target ball 5 in the locating pin mounting hole 12 and the bushing mounting hole 11 respectively, measure the positions of the single-point and double-point target balls in the laser coordinate system of the tooling 6TB seat, and realize the detection of the locating angle seat 1.

Claims

1. A method for using a long circular hole skin lug locator based on a laser tracker, characterized in that: The oblong hole skin lug locator comprises a positioning angle seat (1), a bushing (2) and a cylindrical pin (3); the positioning angle seat (1) is provided with a bushing mounting hole (11), and a positioning pin mounting hole (12) is provided next to the bushing mounting hole (11); an oblong inner hole (21) is provided on the central axis of the bushing (2), and a guide groove (22) is provided on the edge of the bushing (2); after the bushing (2) is installed in the bushing mounting hole (11), the positioning pin mounting hole (12) is aligned with the guide groove (22), and the cylindrical pin (3) can be inserted; the positioning method of the positioning angle seat (1) on the tooling (6) is as follows: inserting a single-point target ball (4) into the positioning pin mounting hole (12), inserting a double-point target ball (5) into the bushing mounting hole (11), adjusting the single-point and double-point target balls in the laser coordinate system formed by the TB seat of the tooling (6), and realizing the positioning of the positioning angle seat (1) on the tooling (6); The method for using the oblong hole skin lug locator based on laser tracker installation is as follows: the positioning angle seat (1) is installed on the tooling, and its specific position on the tooling is located using the laser tracker; after the positioning installation, the bushing (2) is installed into the bushing installation hole (11) and the positioning pin installation hole (12) is aligned with the guide groove (22), and after alignment, the cylindrical pin (3) is inserted to complete the positioning installation of the bushing (2); after the positioning installation is completed, the positioning hole on the skin lug (7) is aligned with the oblong inner hole (21) on the bushing (2), and the positioning installation of the skin (8) can be carried out; after the positioning of the positioning angle seat (1) is completed, the single and double point target balls need to be removed, and then the positioning installation of the bushing (2) is carried out.

2. The method for using the oblong hole skin lug locator based on laser tracker installation according to claim 1 is characterized in that: The positioning angle seat (1) is provided with a boss (13) protruding outward; the bushing mounting hole (11) and the positioning pin mounting hole (12) are both arranged on the boss (13).

3. The method for using the oblong hole skin lug locator based on laser tracker installation according to claim 1 is characterized in that: The positioning angle seat (1) is also provided with a tooling connection hole (14).

4. The method for using the oblong hole skin lug locator based on laser tracker installation according to claim 1 is characterized in that: The positioning angle seat (1) is connected to the tooling (6) by means of bolts passing through the connecting holes (14) of the tooling (6).

5. The method for using the oblong hole skin lug locator based on laser tracker installation according to claim 1 is characterized in that: When the positioning angle seat (1) on the tooling (6) is regularly inspected, the bushing (2) and the cylindrical pin (3) are removed, and a single-point target ball (4) and a double-point target ball (5) are correspondingly installed in the positioning pin mounting hole (12) and the bushing mounting hole (11), and the positions of the single-point and double-point target balls in the laser coordinate system of the TB seat of the tooling (6) are measured to realize the detection of the positioning angle seat (1).

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