Lock body installation tool

Abstract

The utility model discloses a kind of lock body installation tools in the technical field of aircraft lock body installation, the tool includes auxiliary positioning member, auxiliary positioning member includes coaxial and sequentially fixed connection axial limiting body, positioning column body and circumferential limiting body, positioning column body is used to rotate with above-mentioned gap cooperation of composite base body hole, above-mentioned circumferential limiting body is used to be inserted with support base and is relatively fixed, the end face of axial limiting body close to positioning column body is used to be attached with composite base body surface.This tool can assist personnel accurate and convenient to determine the installation position of support base, replace traditional manual mapping mode, reduce the data measured in installation process, improve the accuracy and convenience of lock body installation.

Description

Technical Field

[0001] This utility model relates to the field of aircraft lock body installation technology, and in particular to a lock body installation tool. Background Technology

[0002] The aircraft manufacturing industry involves the installation of lock bodies on the aircraft body. Since lock bodies cannot be directly installed on aircraft components, it is often necessary to first install some support base parts on the aircraft fuselage to fix the position of the lock body, and then install the lock body on these support base parts, so as to achieve a stable installation of the lock body on the aircraft fuselage components.

[0003] For metal substrates, assembly using coordination holes can improve installation accuracy. However, due to current technological limitations, neither domestic nor international manufacturers can achieve clean-edge delivery for composite cabin door substrates with complex hyperboloid shapes, thus making it impossible to install lock body support base components using coordination hole assembly. Existing installation methods for support base components mostly utilize the composite substrate holes (fixed-position holes created using tooling after the composite cabin door has been positioned and adjusted) as a reference, combined with dimensions on the drawings and the sides of the composite substrate, using a steel ruler to manually draw lines for positioning the support base. This method requires combining multiple positional data to determine the final position of the support base, which is time-consuming. Furthermore, a single data error can lead to a positional shift, making it difficult to guarantee positional accuracy and potentially affecting the precise placement of the lock body on aircraft components. When the lock body's positional deviation is severe, the composite substrate and support components may become unusable due to misalignment, rendering them unusable. Utility Model Content

[0004] To overcome the above-mentioned shortcomings of the prior art, the technical problem to be solved by this utility model is: how to complete the installation of the lock body more accurately.

[0005] The technical solution adopted by this utility model to solve its technical problem is: The lock body installation tool includes an auxiliary positioning component, which includes an axial limiting body, a positioning column, and a circumferential limiting body that are coaxially and sequentially fixedly connected. The positioning column is used to rotate with the hole of the composite substrate. The circumferential limiting body is used to insert and fix with the support base. The end face of the axial limiting body near the positioning column is used to fit against the surface of the composite substrate.

[0006] Furthermore, the aforementioned axial limiting body has two gripping surfaces on opposite sides of its ring.

[0007] Furthermore, the aforementioned circumferential limiting body is a cylinder, and the cylinder has an anti-rotation plane on its circumferential side, and the plane containing any of the aforementioned gripping surfaces is parallel to the plane containing the anti-rotation plane.

[0008] Furthermore, a coaxial gap detection ring is fixed at one end of the axial limiting body away from the positioning post. The gap detection ring is used to detect the concentricity between the lock core and the hole in the composite material substrate.

[0009] Furthermore, the axial limiting body is fixed with a plurality of arc-shaped detection plates coaxial with the positioning column at one end. The plurality of arc-shaped detection plates are located in the same ring. The arc-shaped detection plates are used to detect the concentricity between the lock cylinder and the composite material substrate hole.

[0010] Furthermore, it also includes a marker block that can be used in conjunction with the auxiliary positioning component. The marker block includes a mating plane and a pair of parallel detection surfaces. Both detection surfaces are perpendicular to the mating plane. The mating plane is mated to the surface of the composite substrate. When one of the two detection surfaces is mated to the side of the support base, the other is flush with the side edge of the composite substrate.

[0011] The lock body installation method includes the following steps: S1, using a lock body installation tool, insert the free end of the circumferential limiting body into the composite substrate hole, and continuously apply a pushing force towards the composite substrate along the axial direction of the auxiliary positioning component, so that the end face of the axial limiting body near the positioning body is in contact with the surface of the composite substrate; wherein the lock body installation tool includes an auxiliary positioning component, which includes an axial limiting body, a positioning column, and a circumferential limiting body that are coaxially and sequentially fixedly connected, the positioning column is used for clearance rotational engagement with the aforementioned composite substrate hole, the aforementioned circumferential limiting body is used for insertion engagement with the support base and relative fixation, and the end face of the axial limiting body near the positioning column is used to contact the surface of the composite substrate. Preferably, the aforementioned axial limiting body has two gripping surfaces opposite each other on its circumferential side. Preferably, the aforementioned circumferential limiting body is a cylinder, and the circumferential side of the cylinder has an anti-rotation plane, and the plane containing any of the aforementioned gripping surfaces is parallel to the plane containing the anti-rotation plane.

[0012] S2, rotate the support base so that the lock mounting hole on the support base corresponds to the circumferential contour of the circumferential limiter, then insert the support base from one end of the circumferential limiter onto the circumferential limiter and fit it into the composite substrate.

[0013] S3, rotate the axial limiting body, and the circumferential limiting body will rotate accordingly, causing the support base to rotate.

[0014] S4. Use a measuring instrument to measure the distance M1 of any measuring point on the side of the support base. Rotate the axial limit body to adjust the distance M1 of the corresponding measuring point on the side of the support base. When the distance M1 of any measuring point on the side of the support base is equal to M2, stop rotating the axial limit body and obtain the installation position of the support base. Wherein, M1 is the actual horizontal distance from the measuring point on the side of the support base to the side of the composite substrate; M2 is the horizontal distance from the measuring point on the side of the support base to the side of the composite substrate as required by the drawing.

[0015] S5, based on the installation position of the support base, determine and record the position of the center point of the second connecting hole during its installation process on the composite substrate.

[0016] S6, pull the support base out of the auxiliary positioning component, remove the auxiliary positioning component from the hole in the composite substrate, drill a hole based on the position of the center point of the second connecting hole, and install the support base.

[0017] S7. Insert the lock cylinder sequentially into the composite base hole and the lock body mounting hole from the side of the composite base away from the support base, and then adjust the position of the lock cylinder.

[0018] S8. Use nuts to secure the lock cylinder to the support base. Installation is complete.

[0019] Furthermore, the measuring instrument in step S4 is a standard block. The standard block includes a bonding plane that can be attached to the surface of the composite substrate, and a pair of parallel detection surfaces. Both detection surfaces are perpendicular to the bonding plane, and the horizontal distance between the two detection surfaces is the distance value M3. When measuring the distance value M1 of any measuring point on the side of the support base, the detection surface of the standard block is attached to the composite substrate, and the standard block is slid so that one of the two detection surfaces is flush with the side of the composite substrate. The auxiliary positioning component is rotated so that it drives the side of the support base to rotate toward the other detection surface of the standard block and attach to it. Then the auxiliary positioning component stops rotating. At this time, the distance value M1 of any measuring point on the side of the support base is equal to the distance value M3, and the installation position of the support base is determined.

[0020] Furthermore, the specific method for adjusting the lock cylinder position in step S7 above is as follows: The axial limiting body is fixed with multiple arc-shaped detection pieces coaxial with it at one end away from the positioning column. The multiple arc-shaped detection pieces are located in the same ring. The multiple arc-shaped detection pieces of the auxiliary positioning component are inserted into the gap between the lock cylinder head and the composite material base hole. The position of the lock cylinder head is assisted in fixing. Then the tail of the lock cylinder is adjusted, and the position adjustment of the lock cylinder is completed.

[0021] Furthermore, the following steps are included after step S8: S9. For the lock body that has been successfully installed on the support base, insert multiple arc-shaped detection pieces of auxiliary positioning components, which are different from those in step S7, into the gap between the lock cylinder head and the composite material base hole.

[0022] S10, rotate the auxiliary positioning component at least one revolution. If the multiple arc-shaped detection pieces can rotate one revolution without any obstruction within the gap between the lock cylinder head and the composite material base hole, the lock body installation is qualified. If the multiple arc-shaped detection pieces encounter jamming or cannot rotate during the rotation within the gap between the lock cylinder head and the composite material base hole, the lock body installation is unqualified.

[0023] The beneficial effects of this utility model are: This lock body installation tool incorporates an auxiliary positioning component, which includes an axial limiting body, a positioning column, and a circumferential limiting body that are coaxially and sequentially fixedly connected. This auxiliary positioning component determines the axial position of the support base. Simultaneously, the circumferential limiting body is inserted into and relatively fixed to the support base. Therefore, by rotating the circumferential limiting body in conjunction with a measuring tool, and comparing the horizontal distance from any point on the side of the support base to the side of the composite substrate with the horizontal distance from any point on the side of the support base to the side of the composite substrate on the drawing, the circumferential position of the support base is determined. This allows for precise and convenient determination of the support base's installation position. This design replaces traditional manual surveying methods, reducing the amount of measurement data used during installation, thereby reducing errors in measurement and manual recording, and improving the accuracy and convenience of lock body installation. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the auxiliary positioning component in the lock body installation tool of this utility model; Figure 2 This is one of the schematic diagrams illustrating the installation of the lock body installation tool of this utility model during use; Figure 3 This is the second schematic diagram of the lock body installation tool of this utility model during use; Figure 4 This is the second structural schematic diagram of the auxiliary positioning component in the lock body installation tool of this utility model; Figure 5 This is the third illustration of the lock body installation tool of this utility model being installed during use; Figure 6 This is the fourth illustration of the lock body installation tool of this utility model being installed during use; Figure 7 This is the fifth illustration of the lock body installation tool of this utility model being installed during use; Figure 8 This is diagram six illustrating the installation of the lock body installation tool of this utility model during use; Figure 9 This is one of the structural schematic diagrams of the block in the lock body installation tool of this utility model; Figure 10 This is the second structural schematic diagram of the block in the lock body installation tool of this utility model; Figure 11 This is a side view of an auxiliary positioning component in the lock body installation tool of this utility model; Figure 12 This is a side view of another auxiliary positioning component in the lock body installation tool of this utility model.

[0025] The markings in the diagram are as follows: 1-Auxiliary positioning component, 2-Axial limiting body, 3-Positioning column, 4-Circumferential limiting body, 5-Anti-rotation plane, 6-Gap detection ring, 7-Arc-shaped detection piece, 8-Standard block, 9-Mating plane, 10-Detection surface, 11-Grip surface, 12-Support base, 13-Lock body, 14-Lock cylinder, 15-Nut, 16-Composite substrate, 17-Composite substrate hole, 18-Lock body mounting hole, 19-First connecting hole, 20-Second connecting hole, 21-Frustum section, 22-Threaded locking section, 23-Threaded section. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Example 1 like Figures 1-3As shown, the lock body installation tool includes an auxiliary positioning component 1. The auxiliary positioning component 1 includes an axial limiting body 2, a positioning column 3, and a circumferential limiting body 4, which are coaxially and sequentially fixedly connected. The positioning column 3 is used for a clearance-rotational fit with the aforementioned composite substrate hole 17. The circumferential limiting body 4 is used for an insertion fit with the support base 12 and is relatively fixed. The end face of the axial limiting body 2 near the positioning column 3 is used to fit against the surface of the composite substrate 16. The axial limiting body 2, positioning column 3, and circumferential limiting body 4 in the auxiliary positioning component 1 can be integrally formed, or they can be machined from a single part on a CNC machine tool. The latter method is preferred, as its machining accuracy and speed can be guaranteed to a certain extent. Because the positioning post 3 is in clearance rotational fit with the composite substrate hole 17, the diameter of the positioning post 3 is slightly smaller than the hole diameter of the composite substrate hole 17. Preferably, during manufacturing, the diameter of the positioning post 3 can be the same as the hole diameter of the composite substrate hole 17, but the tolerance of the diameter of the positioning post 3 is smaller than the tolerance of the hole diameter of the composite substrate hole 17. This arrangement ensures that the positioning post 3 and the composite substrate hole 17 are in clearance fit, but without excessive clearance, facilitating subsequent position adjustment of the support base 12. The lock body mounting hole 18 of the support base 12 has the same shape as the contour of the circumferential limiting body 4. The circumferential limiting body 4 and the lock body mounting hole 18 are in clearance fit. The lock body 13 includes a lock cylinder 14 and a nut 15. The lock cylinder 14 includes a frustum section 21, a threaded locking section 22 and a threaded section 23 arranged in sequence. The diameter of the frustum section 21 is larger than the diameter of the lock body mounting hole 18 and smaller than the diameter of the composite material base hole 17. When the lock body 13 is installed, the frustum section 21 passes through the composite material base hole 17 and its end face near the threaded locking section 22 abuts against the support base 12. The nut 15 is sleeved on the threaded locking section 22 and threadedly connected to it.

[0028] When the lock body 13 needs to be installed on the composite substrate 16 of the aircraft, the free end of the circumferential limiting body 4 is inserted into the composite substrate hole 17 of the composite substrate 16, and a pushing force is continuously applied towards the composite substrate 16 in the axial direction of the auxiliary positioning member 1, so that the end face of the axial limiting body 2 near the positioning body is in contact with the surface of the composite substrate 16. Then, the support base 12 is rotated so that the lock body mounting hole 18 on the support base 12 corresponds to the circumferential side contour of the circumferential limiting body 4, and then the support base 12 is inserted from one end of the circumferential limiting body 4 onto the circumferential limiting body 4 and is in contact with the composite substrate 16. With preparation complete, rotate the axial limiting body 2, and the circumferential limiting body 4 will rotate accordingly, causing the support base 12 to rotate. Simultaneously, use a measuring instrument (in this embodiment, a steel ruler can be used) to measure the horizontal distance from the side of the support base 12 to the side of the composite substrate 16 (this distance must conform to the distance measured on the lock body 13 installation drawing). During the measurement, the operator rotates the axial limiting body 2 with one hand and holds the steel ruler with the other, ensuring that the corresponding scale value on the steel ruler (i.e., conforming to the distance measured on the lock body 13 installation drawing) is within acceptable limits. The distance dimension of side 6) is located on the side of the composite substrate 16. Rotating the axial limiting body 2 causes the support base 12 to rotate, making the side of the support base 12 fit against the head of the steel ruler. Then, the steel ruler moves downwards (or upwards, or downwards then upwards). During this movement, the scale value on the steel ruler (i.e., the distance dimension from the side of the support base 12 to the side of the composite substrate 16 measured on the lock body 13 installation drawing) remains on the side of the composite substrate 16. Rotating the axial limiting body 2 causes the support base 12 to rotate, thus ensuring that the side of the support base 12 remains in contact with the head of the steel ruler during the movement. This operation method ensures that the horizontal distance from any position on the side of the support base 12 to the side of the composite substrate 16 is the same as the value on the drawing, thereby determining the position of the support base 12. Based on the position of the support base 12, the position of the second connecting hole 20 of the composite substrate 16 is determined. The personnel record this on the composite substrate 16, pull the support base 12 out of the auxiliary positioning part 1, remove the auxiliary positioning part 1 from the hole 17 of the composite substrate, and make and enlarge the hole based on the recorded position of the second connecting hole 20. Finally, the determination of the second connecting hole 20 of the composite substrate 16 is completed, and then the support base 12 is installed.After the support base 12 is installed, the lock cylinder 14 is sequentially inserted into the composite base hole 17 and the lock body mounting hole 18 from the side of the composite base 16 away from the support base 12. When the end face of the frustum section 21 of the lock cylinder 14 near the threaded locking section 22 abuts against the support base 12, the insertion action stops. At this time, the threaded section 23 and one end of the threaded locking section 22 near the threaded section 23 pass through the lock body mounting hole 18, and the end of the threaded locking section 22 near the frustum section 21 is located in the lock body mounting hole 18. Then, the nut 15 is used to lock the lock cylinder 14 by slipping it onto the threaded locking section 22 from one end of the threaded section 23. When the nut 15 is in contact with the support base 12 and cannot be further tightened, the lock body 13 is installed.

[0029] The use of this lock body 13 installation tool can help personnel quickly determine the installation position of the support base 12. The amount of drawing data used in the measurement process is reduced compared to the traditional method, which reduces the probability of errors. It is less likely to cause positional errors of the support base 12 due to personnel misremembering dimensions and measurement errors. This makes it easier to ensure that the installation position of the support base 12 meets the precise position (the correct position of the lock body 13 on the composite substrate 16 on the drawing). It avoids product failures due to manual drawing errors and reduces the probability of scrapping the composite substrate 16 and support parts due to manual drawing errors, which helps to reduce quality costs.

[0030] The aforementioned axial limiting body 2 has two gripping surfaces 11 on opposite sides of its ring. The gripping surfaces 11 make it easier for personnel to rotate the auxiliary positioning component 1.

[0031] The aforementioned circumferential limiting body 4 is a cylinder, and the cylinder has an anti-rotation plane 5 on its circumferential side. The plane on which any of the aforementioned gripping surfaces 11 are located is parallel to the plane on which the anti-rotation plane 5 is located.

[0032] This design allows the outer contour of the axial limiter 2 to quickly find the insertion position when it is inserted into the lock body mounting hole 18 of the support base 12, thus improving installation efficiency.

[0033] Example 2 like Figure 8 and Figure 11The difference between the lock body 13 installation tool in Embodiment 2 and the lock body 13 installation tool in Embodiment 1 is that a coaxial gap detection ring 6 is fixed at the end of the axial limiting body 2 away from the positioning column 3. The gap detection ring 6 is used to detect the concentricity between the lock cylinder 14 and the composite material base hole 17. The gap detection ring 6 can be integrally formed with the three parts: the axial limiting body 2, the positioning column 3, and the circumferential limiting body 4. Alternatively, it can be processed by 3D printing (i.e., additive manufacturing, a manufacturing technology that builds a solid by layering adhesive materials (such as metal, plastic, resin, etc.) based on a digital model) or a CNC lathe. The size of the gap detection ring 6 is consistent with the size of the ring formed by the gap between the lock cylinder 14 and the composite material base hole 17 in the drawing, except that the tolerance value of the former is smaller than that of the latter. Therefore, the gap detection ring 6 can rotate within the aforementioned gap.

[0034] After the support base 12 is installed, the lock body 13 needs to be installed on the support base 12 to complete the final installation of the lock body 13. In traditional installation, misalignment between the lock body 13 and the support base 12 is common. Therefore, a pre-installation is performed between the lock body 13 and the support base 12, followed by checking the concentricity between the lock cylinder 14 and the composite material base hole 17. Only after passing this check is the final installation carried out. Specifically, the lock cylinder 14 is first inserted into the composite material base hole 17 of the composite material base 16 and the lock body mounting hole 18 of the support base 12. A steel ruler is then used to measure the gap around the head of the lock cylinder 14. One operator checks whether the lock cylinder 14 is centered on the composite material base hole 17 on the composite material base 16 based on the measurement. Another operator adjusts the position of the lock cylinder 14 according to its installation status. Once the lock cylinder 14 is in place, it is secured with a special nut 15 for the lock body 13, completing the installation. This traditional method requires two people to work together, is relatively time-consuming, and relies on manual visual inspection, which is prone to errors and may lead to rework.

[0035] In this design, after pre-installation, i.e., after the lock cylinder 14 is inserted into the composite substrate hole 17 of the composite substrate 16 and the lock body mounting hole 18 of the support base 12, the gap detection ring 6 of the auxiliary positioning component 1 is placed into the gap between the head of the lock cylinder 14 and the composite substrate hole 17, thus assistedly fixing the head position of the lock cylinder 14 (i.e., the frustum section 21). Then, the tail of the lock cylinder 14 is aligned (i.e., the threaded section 23 of the lock cylinder 14 is pulled so that the frustum section 21 fits against the support base 12). The relative position of the lock cylinder 14 and the support base 12 is fixed using the nut 15 (i.e., the nut 15 is fitted onto the threaded locking section 22 and the nut 15 is tightened until the nut 15 fits against the outer surface of the support base 12), and the installation is completed. This design allows the entire lock body 13 to be installed more precisely on the support base 12. Specifically, the lock cylinder 14 is installed in the exact center of the composite material base hole 17, and the gap between the outer ring side of the lock cylinder 14 and the periphery of the composite material base hole 17 is relatively more uniform. The concentricity between the lock body 13 and the composite material base 16 is high, reducing the probability of rework. Furthermore, the number of operators during this installation process changes from two people to one person, reducing human resource costs and allowing for more precise and convenient installation of the lock body 13.

[0036] To ensure the concentricity between the lock cylinder 14 and the composite material base hole 17, after the lock body 13 is installed, the concentricity between the lock cylinder 14 and the composite material base hole 17 can be checked again. Specifically, the gap detection ring 6 of another auxiliary positioning component 1 is placed into the gap between the head of the installed lock cylinder 14 and the composite material base hole 17. The auxiliary positioning component 1 (which can be rotated by holding one of the axial limiting body 2, circumferential limiting body 4, or positioning column 3) is rotated at least one full turn. If the gap detection ring 6 can rotate one full turn without obstruction within the gap between the head of the lock cylinder 14 and the composite material base hole 17, the lock body 13 is installed correctly. If the gap detection ring 6 encounters jamming or cannot rotate during rotation within the gap between the head of the lock cylinder 14 and the composite material base hole 17, the lock body 13 is not installed correctly.

[0037] Example 3 like Figures 4-5 , Figures 7-8 and Figure 12The lock body installation tool of Embodiment 3 differs from that of Embodiment 1 in that: the axial limiting body 2 is fixed with a plurality of arc-shaped detection pieces 7 coaxial with it at one end away from the positioning column 3, and the plurality of arc-shaped detection pieces 7 are located in the same ring. The arc-shaped detection pieces 7 are used to detect the concentricity between the lock cylinder 14 and the composite material base hole 17. After pre-installation is completed, i.e., after the lock cylinder 14 is inserted into the composite substrate hole 17 of the composite substrate 16 and the lock body mounting hole 18 of the support base 12, the concentricity between the lock cylinder 14 and the composite substrate hole 17 is tested using the above structure. That is, multiple arc-shaped detection pieces 7 of the auxiliary positioning piece 1 are placed into the gap between the head of the lock cylinder 14 and the composite substrate hole 17 (if multiple arc-shaped detection pieces 7 can be successfully inserted, concentricity can be guaranteed to a certain extent). The head position of the lock cylinder 14 (i.e., the frustum section 21) is assisted in fixing. Then, the tail of the lock cylinder 14 is aligned (i.e., the threaded section 23 of the lock cylinder 14 is pulled so that the frustum section 21 fits against the support base 12). The relative position of the lock cylinder 14 and the support base 12 is fixed using the nut 15 (i.e., the nut 15 is fitted onto the threaded locking section 22 and the nut 15 is tightened until the nut 15 fits against the outer side of the support base 12). The installation is then complete. It is worth noting that the size of the same ring on which the multiple arc-shaped detection pieces 7 are located is consistent with the size of the ring formed by the gap between the lock core 14 and the composite material substrate hole 17 in the drawing. However, the tolerance value of the former is smaller than that of the latter, so the multiple arc-shaped detection pieces 7 can rotate within the gap.

[0038] To ensure the concentricity between the lock cylinder 14 and the composite material base hole 17, another auxiliary positioning component 1 can be used to perform a secondary inspection of the installed lock cylinder 14 and the composite material base hole 17. The specific method is as follows: Multiple arc-shaped detection pieces 7 of the auxiliary positioning component 1 are placed into the gap between the head of the installed lock cylinder 14 and the composite material base hole 17. The auxiliary positioning component 1 is rotated at least one full turn. If the multiple arc-shaped detection pieces 7 can rotate one full turn without obstruction within the gap between the head of the lock cylinder 14 and the composite material base hole 17, then the lock body 13 is installed correctly. If the multiple arc-shaped detection pieces 7 encounter jamming or cannot rotate during the rotation within the gap between the head of the lock cylinder 14 and the composite material base hole 17, then the lock body 13 is not installed correctly. Traditional inspection uses a steel ruler to measure the gap around the head of the composite material base 16 and the lock cylinder 14. However, manual measurement has a large error, affecting the accuracy of determining whether the lock cylinder 14 is centered on the lock hole in the composite material base 16. Furthermore, the gaps around the keyhole need to be measured one by one. This process consumes a significant amount of time, resulting in low testing efficiency and quality. This design structure can quickly complete the concentricity test of the lock body 13. It is worth noting that the auxiliary positioning component 1 used for testing and the auxiliary positioning component 1 used during installation cannot be the same.

[0039] Example 4 like Figure 6 , Figures 9-10 The lock body installation tool in Embodiment 4 differs from that in Embodiment 1 in that it further includes a marker block 8 that can be used in conjunction with the auxiliary positioning component 1. The marker block 8 includes a mating plane 9 and a pair of parallel detection surfaces 10. Both detection surfaces 10 are perpendicular to the mating plane 9. The mating plane 9 is mated to the surface of the composite substrate 16, and when one of the two detection surfaces 10 is mated to the side of the support base 12, the other is flush with the side edge of the composite substrate 16. The distance between the two detection surfaces 10 is the distance from the installed support base 12 to the side edge of the composite substrate 16. The marker block 8 can replace current measuring tools; that is, in this embodiment, it can replace a steel ruler. Used in conjunction with the auxiliary positioning component 1, it can quickly determine the position of the support base 12 in the circumferential direction, further improving the speed of determining the position of the support base 12.

[0040] It is worth noting that the dimensions of this standard block 8 need to be checked regularly to reduce the occurrence of deviations in the position of the support base 12 caused by wear and tear from long-term use.

[0041] Example 5 like Figures 1-12 As shown, the installation method of lock body 13 includes the following steps: S1. Using the lock body installation tool as shown in Example 1, insert the free end of the circumferential limiting body 4 into the composite substrate hole 17 of the composite substrate 16, and continuously apply a pushing force towards the composite substrate 16 in the axial direction of the auxiliary positioning member 1, so that the end face of the axial limiting body 2 close to the positioning body fits against the surface of the composite substrate 16.

[0042] S2, rotate the support base 12 so that the lock body mounting hole 18 on the support base 12 corresponds to the circumferential side profile of the circumferential limiting body 4, and then insert the support base 12 from one end of the circumferential limiting body 4 onto the circumferential limiting body 4 and fit it against the composite substrate 16; the shape of the cross section of the circumferential limiting body 4 is consistent with the shape of the lock body mounting hole 18, and the size of the cross section of the circumferential limiting body 4 is consistent with the size of the lock body mounting hole 18. The two achieve plug-in fit through different tolerance values.

[0043] S3, rotate the axial limiting body 2, and the circumferential limiting body 4 will rotate accordingly and drive the support base 12 to rotate; rotate the axial limiting body 2 and the circumferential limiting body 4 will rotate synchronously. Since the circumferential limiting body 4 is inserted into the mounting hole of the support base 12, the rotation of the circumferential limiting body 4 will drive the support base 12 to rotate.

[0044] S4. Use a measuring instrument to measure the distance M1 of any measuring point on the side of the support base 12. Rotate the axial limiting body 2 to adjust the distance M1 of the corresponding measuring point on the side of the support base 12. When the distance M1 of any measuring point on the side of the support base 12 is equal to M2, stop rotating the axial limiting body 2 and obtain the installation position of the support base 12. Wherein, M1 is the actual horizontal distance from the measuring point on the side of the support base 12 to the side of the composite substrate 16; M2 is the horizontal distance from the measuring point on the side of the support base 12 to the side of the composite substrate 16 as required by the drawing. The measuring instrument can be a steel ruler, and the specific usage method can be referred to Example 1.

[0045] S5, based on the installation position of the support base 12, determine and record the position of the center point of the second connecting hole 20 on the composite substrate 16 during the installation process; the support base 12 is provided with four first connecting holes 19, and the composite substrate 16 is provided with four second connecting holes 20 corresponding to the first connecting holes 19. The method of recording the second connecting hole 20 on the composite substrate 16 is as follows: the pen is perpendicularly approached to the composite substrate 16 based on the center position of the first connecting hole 19 to draw the center point of the second connecting hole 20 on the composite substrate 16.

[0046] S6, pull the support base 12 out of the auxiliary positioning component 1, remove the auxiliary positioning component 1 from the composite substrate hole 17, and drill a hole based on the position of the center point of the second connecting hole 20 and install the support base 12. During the drilling process, the center point position of the second connecting hole 20 recorded on the composite substrate 16 can be used as a reference (when determining the position of the second connecting hole 20, preferably, among the four connecting holes 19 of the support base 12, two first connecting holes 19 located on the diagonal should be selected first, since the center lines of the first connecting hole 19 and the second connecting hole 20 are collinear, the pen can draw the center point of the second connecting hole 20 on the composite substrate 16 vertically downward based on the center position of the selected first connecting hole 19; this process is called dotting). Using a dedicated air drill as a reference, holes are drilled into the composite substrate 16 (this process is called pilot hole drilling). Then, a mandrel of the corresponding specification is used to fix the composite substrate 16 to the support base 12. Next, two more pilot holes 20 are drilled using a dedicated air drill. Then, mandrels of the appropriate hole diameter are used to fix them in a crisscross pattern. Each of the four pilot holes 20 is enlarged to the final hole (the step from pilot hole to final hole is called enlargement. The second connection hole 20 needs to be drilled twice to complete, the first time as a pilot hole and the second time as a final hole). Then, the support base 12 and the composite substrate 16 are installed. The two are installed using connectors (such as blind rivets, countersunk rivets, etc.). The connectors pass sequentially through the first connection hole 19 of the corresponding support base 12 and the second connection hole 20 of the composite substrate 16, thereby fixing the support base 12 to the composite substrate 16.

[0047] S7, insert the lock cylinder 14 sequentially into the composite substrate hole 17 and the lock body mounting hole 18 from the side of the composite substrate 16 away from the support base 12, and then adjust the position of the lock cylinder 14; specifically, adjust the position of the lock cylinder 14 as follows: insert the lock cylinder 14 sequentially into the composite substrate hole 17 and the lock body mounting hole 18 from the side of the composite substrate 16 away from the support base 12, and stop the insertion action when the end face of the frustum section 21 of the lock cylinder 14 near the threaded locking section 22 abuts against the support base 12. At this time, the threaded section 23 and the end face of the threaded section 23... One end of the threaded locking section 22 passes through the lock body mounting hole 18, and the end of the threaded locking section 22 near the frustum section 21 is located in the lock body mounting hole 18. Then, a steel ruler is used to measure the gap between the composite substrate hole 17 and the head of the lock cylinder 14. One operator checks whether the installation position of the lock cylinder 14 is in the center of the lock hole on the composite substrate 16 according to the measurement value. Another operator adjusts the position of the lock cylinder 14 according to the installation status of the lock cylinder 14. After the position of the lock cylinder 14 meets the above test requirements, the adjustment is completed.

[0048] S8. Use nut 15 to fix lock cylinder 14 onto support base 12, installation is complete. Use nut 15 to lock the threaded locking section 22 by slipping it onto one end of threaded section 23 of lock cylinder 14. When nut 15 is in contact with support base 12 and cannot be turned any further, lock body 13 is installed.

[0049] The above-described method for installing the lock body 13 can quickly and accurately determine the position of the support base 12, thereby improving the accuracy of the lock body 13 installation.

[0050] Preferably, the measuring instrument in step S4 is a standard block 8. The standard block 8 includes a bonding plane 9 that can be bonded to the surface of the composite substrate 16, and a pair of parallel detection surfaces 10. Both detection surfaces 10 are perpendicular to the bonding plane 9, and the horizontal distance between the two detection surfaces 10 is the distance value M3. When measuring the distance value M1 of any measuring point on the side of the support base 12, the detection surface 10 of the standard block 8 is bonded to the composite substrate 16, and the standard block 8 is slid so that one of the two detection surfaces 10 is flush with the side of the composite substrate 16. The auxiliary positioning component 1 is rotated so that it drives the side of the support base 12 to rotate toward the other detection surface 10 of the standard block 8 and bond with it. Then the auxiliary positioning component 1 stops rotating. At this time, the distance value M1 of any measuring point on the side of the support base 12 is equal to the distance value M3, and the installation position of the support base 12 is determined. The above-described method for installing the lock body 13 can quickly and accurately determine the position of the circumferential rotation of the support base 12, thereby improving the accuracy of the lock body 13 installation.

[0051] The specific method for adjusting the position of the lock cylinder 14 in step S7 is as follows: The axial limiting body 2 is fixed with multiple arc-shaped detection pieces 7 coaxial with it at one end away from the positioning column 3. The multiple arc-shaped detection pieces 7 are located in the same ring. The multiple arc-shaped detection pieces 7 of the auxiliary positioning piece 1 are inserted into the gap between the head of the lock cylinder 14 and the composite material base hole 17. The head position (frustum section 21) of the lock cylinder 14 is assistedly fixed. Then the tail of the lock cylinder 14 is adjusted (that is, the threaded section 23 of the lock cylinder 14 is pulled so that the frustum section 21 fits with the support base 12). The position adjustment of the lock cylinder 14 is completed.

[0052] Preferably, after step S8 above, the following step is also included: S9, for the lock body 13 that has been successfully installed on the support base 12, insert multiple arc-shaped detection pieces 7 of the auxiliary positioning piece 1, which are different from those in step S7, into the gap between the head of the lock cylinder 14 and the composite material base hole 17. S10, rotate the auxiliary positioning component 1 at least one turn. If the multiple arc-shaped detection pieces 7 can rotate one turn without any obstruction in the gap between the head of the lock cylinder 14 and the composite material base hole 17, then the lock body 13 is installed successfully. If the multiple arc-shaped detection pieces 7 encounter jamming or cannot rotate during the rotation process in the gap between the head of the lock cylinder 14 and the composite material base hole 17, then the lock body 13 is not installed successfully.

[0053] Traditional testing involves using a steel ruler to measure the gap around the head of the lock cylinder 14 and the composite substrate hole 17. However, this manual measurement has significant errors, affecting the accuracy of determining whether the lock cylinder 14 is centered on the lock hole in the composite substrate 16. Because each gap around the lock hole needs to be measured individually, a considerable amount of time is spent on measurement, resulting in low testing efficiency and quality. This new method can quickly complete the concentricity test of the lock body 13.

[0054] In summary, this application proposes a lock body installation tool, which designs an axial limiting body 2, a positioning column 3, and a circumferential limiting body 4 that are coaxially and sequentially fixedly connected. An auxiliary positioning component 1 is used to determine the axial position of the support base 12. At the same time, the circumferential limiting body 4 is inserted and fixed to the support base 12, allowing it to drive the support base 12 to rotate. A measuring tool is used to determine the circumferential position of the support base 12, thereby accurately and conveniently determining the installation position of the support base 12. Compared with the traditional manual drawing, which is prone to errors and product failures, this design provides a more accurate and convenient way to determine the support base 12, improves the installation accuracy of the lock body 13, and also helps to reduce quality costs.

Claims

1. A lock body installation tool, characterized by: The auxiliary positioning component (1) includes an axial limiting body (2), a positioning column (3) and a circumferential limiting body (4) that are coaxially and sequentially fixedly connected. The positioning column (3) is used to rotate with the hole (17) of the composite substrate with clearance. The circumferential limiting body (4) is used to insert and fix with the support base (12). The end face of the axial limiting body (2) near the positioning column (3) is used to fit against the surface of the composite substrate (16).

2. The lock body installation tool as described in claim 1, characterized in that: The axial limiting body (2) has two gripping surfaces (11) on opposite sides of the ring.

3. The lock body installation tool as described in claim 2, characterized in that: The circumferential limiting body (4) is a cylinder, and the cylinder has an anti-rotation plane (5) on its circumferential side. The plane where any of the gripping surfaces (11) are located is parallel to the plane where the anti-rotation plane (5) is located.

4. The lock body installation tool as described in claim 1, characterized in that: The axial limiting body (2) is fixed with a coaxial gap detection ring (6) at one end away from the positioning column (3). The gap detection ring (6) is used to detect the concentricity between the lock core (14) and the composite substrate hole (17).

5. The lock body installation tool as described in claim 1, characterized in that: The axial limiting body (2) is fixed with a plurality of arc-shaped detection pieces (7) coaxial with the positioning column (3) at one end. The plurality of arc-shaped detection pieces are located in the same ring. The arc-shaped detection pieces (7) are used to detect the concentricity between the lock core (14) and the composite substrate hole (17).

6. The lock body installation tool as described in claim 1, characterized in that: It also includes a marker block (8) that can be used in conjunction with the auxiliary positioning component (1). The marker block (8) includes a mating plane (9) and a pair of parallel detection surfaces (10). Both detection surfaces (10) are perpendicular to the mating plane (9). The mating plane (9) is mated to the surface of the composite substrate (16). When one of the two detection surfaces (10) is mated to the side of the support base (12), the other is flush with the side of the composite substrate (16).

Images