Door frame hinge positioning mechanism and hinge installation method

Abstract

The application discloses a door frame hinge positioning mechanism and a hinge mounting method in the technical field of aircraft manufacturing, and relates to the technical field of aircraft manufacturing. The hinge positioning mechanism comprises a hinge positioner, the hinge positioner comprises a supporting base and a positioning arm, the middle part of the positioning arm is hinged to the supporting base, one end of the positioning arm close to the supporting base is provided with a positioning hole, the other end of the positioning arm is provided with a hinge mounting frame for mounting a hinge, the supporting base is provided with a fixing hole which is aligned with the positioning hole and a positioning pin which is used for being inserted into the positioning hole and the fixing hole, the hinge positioner is determined by a hinge positioning mark, and the hinge is mounted on the door frame through the hinge positioner. The hinge positioning mechanism is used, after the hinge is mounted, the hinge positioning mechanism can be separated from the hinge by rotating the positioning arm, the hinge positioning mechanism does not need to be frequently disassembled and mounted, the mounting efficiency and the mounting precision of the hinge are greatly improved, and after the hinge positioning mechanism is mounted, the hinge positioning mechanism can be repeatedly used for a long time, and the hinge positioning mechanism has high positioning precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aircraft manufacturing, in particular to a door frame hinge positioning mechanism and a hinge installation method. BACKGROUND

[0002] In the process of aircraft manufacturing, the assembly precision between the cabin door and the door frame wall plate is very high, so the control of the installation position of the door frame hinge has high requirements. In the industry, the door frame is generally fixed and assembled by the assembly jig, and the installation position of the hinge is checked or corrected by the hinge positioning marker. The hinge positioning marker has very high precision and can be considered as a standard template in the industry. When checking, the hinge positioning marker is placed at a specific position on the door frame, and the coaxiality between the checking part and the hinge is checked to judge the installation precision of the hinge.

[0003] The traditional door frame hinge has two installation methods: the first method is to use the door frame wall plate as a reference to determine the installation position of the hinge by marking, etc., and then adjust the position of the hinge by using the hinge positioning marker after the hinge is preliminarily installed, and finally fix the hinge. However, since the number of hinge positioning markers in the industry is very small, they are generally passed between major aircraft manufacturers, and cannot be used for a long time, so this method is not practical and has very low efficiency. The second method is to use the assembly jig as a reference to determine the installation position of the hinge by using the hinge positioning device, but the existing hinge positioning device is a fixed integrated structure. After the hinge positioning device is fixed on the assembly jig by bolts, since the hinge assembly is composed of multiple hinge parts, after positioning each hinge part, the corresponding hinge positioning device needs to be disassembled, and the door frame needs to be removed from the assembly jig. Repeatedly disassembling the bolts reduces the operation efficiency of workers, and constantly disassembling and assembling reduces the installation precision of the hinge positioning device, increasing the positioning error of the hinge assembly. SUMMARY

[0004] To overcome the above-mentioned deficiencies of the existing door frame hinge installation method, the technical problem to be solved by the present application is to provide a door frame hinge positioning mechanism and a hinge installation method which can improve the installation efficiency and installation precision.

[0005] The technical scheme adopted by the present application to solve the technical problem is:

[0006] The door frame hinge positioning mechanism comprises a total assembly frame for positioning the door frame, and a hinge positioning marker for checking the hinge position, the total assembly frame is provided with a crossbeam at the position close to the hinge installation of the top of the door frame, the crossbeam is provided with a plurality of hinge positioners, the hinge positioner comprises a supporting base and a positioning arm, the middle part of the positioning arm is hinged with the supporting base, the end close to the supporting base is provided with a positioning hole, and the other end is provided with a hinge installation frame for installing the hinge, the supporting base is provided with a fixed hole alignable with the positioning hole and a positioning pin for inserting the positioning hole and the fixed hole; after the hinge positioner is hinged with the hinge installation frame and the hinge positioning marker, the positioning and fixing of the supporting base and the crossbeam are realized through the cooperation of the hinge positioning marker and the door frame. The hinge positioning marker is a template tool in the industry, has very high precision, is mainly used for calibrating the installation position of the hinge on the door frame, the checking part is corresponding to the hinge hinged part, the hinge can be checked through the coaxiality by clamping the hinged part, so that whether the hinge is installed in place can be judged. The hinge positioning marker is used to determine the position of the hinge positioner, then the hinge installed on the hinge installation frame can be ensured to be in the accurate position, finally the hinge positioner is separated from the hinge by rotating the positioning arm after the hinge is fixed on the door frame wall plate, the process of repeatedly disassembling the hinge positioner is avoided, and the installation efficiency and installation precision of the hinge are improved.

[0007] For the hinge installation frame, in order to facilitate the connection with the hinge positioning marker and the hinge, the hinge installation frame comprises left and right two installation plates, the free end of the installation plate is provided with a bolt hole, the hinge can be hinged on the installation plate by passing through the hinge hinged part and the hinge pin of the bolt hole. The spacing of the two installation plates should be adapted to the width of a single hinge, so as to avoid the left and right movement of the hinge and affect the installation precision.

[0008] In order to facilitate the installation of the hinge on the hinge installation frame, the hinge pin comprises a stepped pin and a through pin, the stepped pin comprises two, is inserted into the two hinge positioners from the outside, and extends to the adjacent installation plate of the adjacent hinge positioner, the through pin comprises a plurality, is inserted between the adjacent two installation plates close to the adjacent two hinge positioners in the middle part. The stepped pin is provided with a step for controlling the insertion position of the stepped pin, and the through pin is a light pole structure, which is convenient to move between the bolt holes. The stepped pin and the through pin are connected between the adjacent installation plates of the adjacent two hinge positioners, which can ensure the coaxiality of the plurality of hinges.

[0009] Further, in order to facilitate the removal of the through pin, a traction hole for pushing the through pin is arranged at the end of the through pin. When the through pin is removed, the needle-shaped rod is inserted into the traction hole through the gap between the adjacent hinge hinged parts, and the through pin can be pushed outwards.

[0010] In order to make the installation plate smoothly put into the gap between the two adjacent hinge parts of the hinge, the width of the installation plate of the hinge installation frame should be less than the distance between the two adjacent hinge parts of the hinge. In the subsequent installation of the hinge on the door frame wall plate, it is necessary to avoid its shaking, and therefore a gasket for clamping the hinge with the installation plate is also provided.

[0011] The door frame hinge installation method adopts the door frame hinge positioning mechanism and is performed according to the following steps:

[0012] Step 1: According to the positional relationship between the door frame and the general assembly frame, a cross beam is arranged on the general assembly frame, and the structural size of the hinge positioning device is determined so that the design position of the pin hole axis of the installation plate on the hinge positioning device is coaxial with the design position of the hinge shaft.

[0013] Step 2: First, the positioning pin is inserted into the positioning hole and the fixing hole to fix the position of the support base and the positioning arm, then the installation plate of the hinge positioning device is hinged with the inspection part of the hinge positioning marker, and finally the hinge positioning marker is placed on the hinge inspection position of the door frame to determine the actual installation position of the hinge positioning device on the cross beam, and then the support base is fixed on the cross beam.

[0014] Step 3: The hinge positioning marker is removed, the leaf installed on the door frame is installed on the installation plate, and the hinge part of the leaf is hinged with the pin hole of the installation plate through the hinge pin.

[0015] Step 4: All the leaves are fixed on the door frame.

[0016] Step 5: Starting from the hinge positioning device at the end, the corresponding hinge pin and positioning pin are removed in turn, the positioning arm is turned downward to make the positioning arm disengage from the fixed leaf, and the hinge pin and positioning pin of the remaining hinge positioning devices are removed in turn in this way to complete the disengagement of the positioning arm from the leaf.

[0017] Further, in step 2, when installing the support base, for the hinge positioning device with large height deviation, the support base is stably fixed on the cross beam by increasing the gasket or grinding the support base.

[0018] Further, in step 4, the leaf hinged with the installation plate is first turned to abut against the wall plate of the door frame, a gasket is added for the place with gap, then the gasket is clamped between the hinge part of the leaf and the installation plate to fix the leaf and the installation plate, and finally the leaf is fixed on the wall plate through the screw.

[0019] By using the above installation method, the hinge positioning device does not need to be frequently disassembled and installed like the traditional installation method, the hinge positioning device of the present application can be used for a long time after installation, does not affect the door frame lower frame and assembly, does not need to be frequently corrected, can ensure the accuracy of the hinge positioning device, and can improve the hinge installation efficiency and installation accuracy.

[0020] The beneficial effect of the present application is that the hinge positioner is made by using the relatively rotatable and fixed support base and positioning arm, after the hinge installation is completed, the hinge positioner can be separated from the hinge by rotating the positioning arm, which is convenient and fast, and the hinge positioner does not need to be frequently disassembled and installed, the installation efficiency and installation precision of the hinge are greatly improved, and meanwhile, the hinge positioner can be repeatedly used for a long time after being installed, so that the hinge positioner has high positioning precision. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the schematic diagram of the general assembly structure of the present application;

[0022] Figure 2 is the schematic diagram of the structure of the hinge positioner of the present application;

[0023] Figure 3 is the front view of the connection between the hinge positioner and the hinge positioning marker of the present application;

[0024] Figure 4 is the side view of the connection between the hinge positioner and the hinge positioning marker of the present application;

[0025] Figure 5 is the schematic diagram of the connection structure between the hinge positioner and the hinge pin of the present application;

[0026] Figure 6 is the enlarged schematic diagram of part A of the present application; Figure 1

[0027] in the figure, 1 is the general assembly jig, 2 is the hinge positioning marker, 3 is the hinge positioner, 4 is the hinge, 5 is the hinge pin, 6 is the door frame, 11 is the cross beam, 31 is the base, 32 is the positioning arm, 33 is the positioning hole, 34 is the hinge installation frame, 35 is the fixed hole, 36 is the positioning pin, 37 is the installation plate, 38 is the insertion pin hole, 41 is the hinge part, 51 is the stepped pin, 52 is the through pin, and 53 is the traction hole. DETAILED DESCRIPTION

[0028] The present application will be further described below in combination with the drawings.

[0029] As Figure 1 ​As shown, the door frame hinge positioning mechanism of the present application comprises a general assembly jig 1 for positioning the door frame 6, and a hinge positioning gauge 2 for checking the position of the hinge 4, the general assembly jig 1 is provided with a crossbeam 11 at the position close to the hinge installation of the top of the door frame 6, the crossbeam 11 is provided with a plurality of hinge positioners 3, the hinge positioner 3 comprises a supporting base 31 and a positioning arm 32, the middle part of the positioning arm 32 is hinged with the supporting base 31, the end close to the supporting base 31 is provided with a positioning hole 33, the other end is provided with a hinge installation rack 34 for installing the hinge 4, the supporting base 31 is provided with a fixing hole 35 which can be aligned with the positioning hole 33 and a positioning pin 36 for inserting the positioning hole 33 and the fixing hole 35; after the hinge installation rack 34 of the hinge positioner 3 is hinged with the hinge positioning gauge 2, the positioning and fixing of the supporting base 31 and the crossbeam 11 are realized through the cooperation of the hinge positioning gauge 2 and the door frame 6.

[0030] The general assembly jig 1 is the positioning assembly reference of the whole door frame 6, and the two have high precision cooperation, therefore, the installation position of the hinge 4 is determined by setting the crossbeam 11 on the general assembly jig 1, which can make the positioning reference consistent and ensure the assembly precision of the whole door frame 6 and the hatch door. The hinge positioning gauge 2 is a template tool in the industry, which has very high precision and is mainly used for calibrating the installation position of the hinge 4 on the door frame 6, the inspection part thereof corresponds to the hinge part 41 of the hinge 4, and whether the hinge 41 is installed in place can be judged by checking the coaxiality through clamping into the hinge part 41. The hinge positioner 3 is as shown in Figure 2 The specific number can be determined according to the number of hinges 4. When installing the hinge positioner 3, the positioning pin 36 is first locked with the supporting base 31 and the positioning arm 32, in order to ensure the stability of the two, the machining precision of the positioning pin 36 should not be less than f6 level, and the precision of the positioning hole 33 and the fixing hole 35 should not be less than H7 level. Then the hinge installation rack 34 of the hinge positioner 3 is hinged with the hinge positioning gauge, as shown in Figure 3 , Figure 4 The hinge positioning gauge 2 is placed on the inspection position of the door frame 6, and the installation position of the hinge positioner 3 on the crossbeam 11 can be determined, and finally the supporting base 31 is fixed on the crossbeam 11 by bolts. After the installation of the hinge positioner 3 is completed, the hinge positioning gauge 2 can be removed, and then the hinge 4 is installed on the hinge installation rack 34 through the hinge pin 5, so that the hinge 4 is in the precise position. After the installation is completed, the hinge pin 5 and the positioning pin 36 are removed in turn, and the hinge positioner 3 is separated from the hinge 4 by rotating the positioning arm 32 downward, thereby completing the installation of the hinge 4.

[0031] To facilitate connection with the hinge positioning marker 2 and hinge 4, the hinge mounting frame 34 includes two left and right mounting plates 37. The free ends of the mounting plates 37 are provided with latch holes 38. The hinge 4 can be hinged to the mounting plates 37 via a hinge pin 5 that passes through the hinge portion 41 of the hinge 4 and the latch hole 38. The spacing between the two mounting plates 37 should be adapted to the width of a single hinge 4 to prevent the hinge 4 from moving left and right, which could affect installation accuracy.

[0032] In order to facilitate the installation of the hinge 4 on the hinge mounting bracket 34, the hinge pin 5 includes a step pin 51 and a through pin 52. Figure 5 As shown, the step pins 51 include two, which are respectively inserted from the outside into the two hinge locators 3 at both ends and extend to a nearby mounting plate 37 on the adjacent hinge locators 3. The through pins 52 include multiple, which are respectively inserted between the two nearby mounting plates 37 between the two adjacent hinge locators 3 in the middle. A step is provided on the step pin 51 to control the insertion position of the step pin 51. When installed in place, the step pin 51 passes from the outside to the inside through the two mounting plates 37 of the first hinge locator 3 and a mounting plate 37 on the second hinge locator 3 close to the first hinge locator 3, and extends to the middle position between the two mounting plates 37 of the second hinge locator 3. The through pin 52 is a smooth rod structure, which is convenient for moving between the pin holes 38. During installation, the through pin 52 extends from the middle of the second hinge locator 3 through the mounting plate 37 to the position between the two mounting plates 37 of the third hinge locator 3, and so on. Finally, the step pin 51 and the through pin 52 are connected end to end and abut against each other to form a complete pin shaft, which can ensure the coaxiality of multiple hinges 4.

[0033] Furthermore, in order to facilitate the removal of the through pin 52, a traction hole 53 for moving the through pin 52 is provided at the end of the through pin 52. Figure 6 As shown, the pin can be pushed outward by inserting a needle-shaped rod into the traction hole 53 through the gap between adjacent hinged portions 41 of the hinge 4 .

[0034] When installing the hinge 4, the width of the mounting plate 37 of the hinge mounting bracket 34 should be smaller than the distance between the two adjacent hinged portions 41 of the hinge 4 so that the mounting plate 37 can be smoothly inserted into the gap between the two adjacent hinged portions 41 of the hinge 4. When the hinge 4 is subsequently mounted on the wall panel of the door frame 6, it is necessary to prevent it from shaking, so a gasket is provided to clamp the hinge 4 to the mounting plate 37.

[0035] The door frame hinge installation method uses the door frame hinge positioning mechanism mentioned above and is carried out in the following steps:

[0036] Step 1, according to the position relationship between the door frame 6 and the assembly jig 1, set the crossbeam 11 on the assembly jig 1, and determine the structure size of the hinge positioner 3, so that the design position of the pin hole 38 axis of the mounting plate 37 of the hinge positioner 3 is coaxial with the design position of the hinge shaft of the hinge 4;

[0037] Step 2, first insert the positioning pin 36 into the positioning hole 33 and the fixing hole 35 to fix the position of the support base 31 and the positioning arm 32, then hinge the mounting plate 37 of the hinge positioner 3 with the inspection part of the hinge positioner 2, finally place the hinge positioner 2 on the hinge inspection position of the door frame 6, so as to determine the actual installation position of the hinge positioner 3 on the crossbeam 11, and then fix the support base 31 on the crossbeam 11;

[0038] Step 3, remove the hinge positioner 2, install the leaf of the hinge 4 for installation on the door frame 6 on the mounting plate 37, and hinge the hinge pin 5 between the hinge part 41 of the leaf and the pin hole 38 of the mounting plate 37;

[0039] Step 4, fix all the leaves on the door frame 6;

[0040] Step 5, start from the end hinge positioner 3, remove the corresponding hinge pin 5 and positioning pin 36 in turn, then turn down the positioning arm 32 to make the positioning arm 32 disengage from the fixed leaf, and remove the hinge pin 5 and positioning pin 36 of the remaining hinge positioner 3 in the same way to complete the disengagement of the positioning arm 32 and the leaf.

[0041] In step 2, when installing the support base 31, for the hinge positioner 3 with large height deviation, increase the gasket or grind the support base 31 to make it stably fixed on the crossbeam 11.

[0042] In step 4, first turn the leaf of the hinge 4 on the mounting plate 37 to abut against the wall plate of the door frame 6, increase the gasket for the gap, then insert the gasket between the hinge part 41 of the leaf and the mounting plate 37 to fix the leaf and the mounting plate 37, and finally fix the leaf on the wall plate of the door frame 6 through the screw.

[0043] By using the above installation method, the hinge positioner does not need to be frequently disassembled and installed like the traditional installation method, the hinge positioner can be used for a long time after installation, does not affect the door frame lower frame and assembly, does not need to be frequently corrected, can ensure the accuracy of the hinge positioner, and improve the installation efficiency and accuracy of the hinge.

Claims

1. A door frame hinge positioning mechanism, comprising an assembly jig (1) for positioning a door frame (6), and a hinge positioning marker (2) for checking the hinge position, characterized in that: The assembly jig (1) is provided with a crossbeam (11) at a position close to the hinge installation position at the top of the door frame, and a plurality of hinge positioners (3) are provided on the crossbeam (11). The hinge positioner (3) includes a support base (31) and a positioning arm (32). The middle part of the positioning arm (32) is hinged to the support base (31), and one end close to the support base (31) is provided with a positioning hole (33), and the other end is provided with a hinge mounting bracket (34) for mounting the hinge (4). The support base (31) is provided with a fixing hole (35) that can be aligned with the positioning hole (33) and a positioning pin (36) for inserting into the positioning hole (33) and the fixing hole (35). After the hinge mounting bracket (34) is hinged to the hinge positioning mark (2), the hinge positioner (3) realizes positioning and fixing of the support base (31) and the crossbeam (11) through the cooperation of the hinge positioning mark (2) and the door frame (6).

2. The door frame hinge positioning mechanism according to claim 1, wherein: The hinge mounting frame (34) includes two left and right mounting plates (37), and a latch hole (38) is provided at the free end of each mounting plate (37). The hinge (4) can be hinged to the mounting plate (37) via a hinge pin (5) passing through the hinge portion of the hinge (4) and the latch hole (38).

3. The door frame hinge positioning mechanism according to claim 2, wherein: The hinge pin (5) includes a step pin (51) and a through pin (52). The step pin (51) includes two, which are respectively inserted into the two hinge positioners (3) at both ends from the outside and extend to a mounting plate (37) adjacent to the adjacent hinge positioner (3). The through pin (52) includes multiple, which are respectively inserted between the two mounting plates (37) adjacent to the two adjacent hinge positioners (3) in the middle part.

4. The door frame hinge positioning mechanism according to claim 3, wherein: The end of the through pin (52) is provided with a traction hole (53) for moving the through pin (52).

5. The door frame hinge positioning mechanism according to claim 4, wherein: The width of the mounting plate (37) of the hinge mounting frame (34) is smaller than the distance between two adjacent hinged portions of the hinge (4), and is provided with a gasket for clamping the hinge (4) and the mounting plate (37).

6. Door frame hinge installation method, its characteristics are: The door frame hinge positioning mechanism according to claim 5 is used and the following steps are performed: Step 1: Arrange a crossbeam (11) on the assembly jig (1) according to the positional relationship between the door frame (6) and the assembly jig (1), and determine the structural dimensions of the hinge locator (3) so that the design position of the axis of the latch hole (38) of the mounting plate (37) on the hinge locator (3) is coaxial with the design position of the rotating shaft of the hinge (4); Step 2: First, insert the positioning pin (36) into the positioning hole (33) and the fixing hole (35) to fix the position of the support base (31) and the positioning arm (32), then hinge the mounting plate (37) of the hinge locator (3) and the inspection portion of the hinge positioning mark (2), and finally place the hinge positioning mark (2) on the hinge inspection position of the door frame (6) to determine the actual installation position of the hinge locator (3) on the beam (11), and then fix the support base (31) on the beam (11); Step 3, remove the hinge positioning mark (2), install the leaf piece of the hinge (4) for installation on the door frame (6) on the mounting plate (37), and hinge the hinge portion (41) of the leaf piece and the pin hole (38) of the mounting plate (37) through the hinge pin (5); Step 4: Fix all the sheets on the door frame (6); Step 5: Starting from the hinge locator (3) at the end, remove the corresponding hinge pin (5) and positioning pin (36) in sequence, then rotate the positioning arm (32) downward to separate the positioning arm (32) from the fixed page. In this way, remove the hinge pin (5) and positioning pin (36) of the remaining hinge locators (3) in sequence to complete the separation of the positioning arm (32) from the page.

7. The door frame hinge installation method according to claim 6, wherein: In step 2, when installing the support base (31), for the hinge locator (3) with a large height deviation, the support base (31) is stably fixed on the beam (11) by adding a gasket or polishing the support base (31).

8. The door frame hinge installation method according to claim 6, wherein: In step 4, the leaf hinged on the mounting plate (37) is first rotated to the wall panel against the door frame (6), and a gasket is added to the gap. Then, the gasket is inserted between the hinge portion (41) of the leaf and the mounting plate (37) to fix the leaf to the mounting plate (37). Finally, the leaf is fixed to the wall panel with screws.

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