Assembly method and locking device for a bossed bow-shaped bracket and a cylinder part

Abstract

The present invention discloses an assembly method and a locking device for a bossed bow-shaped bracket and a cylinder part. The assembly method of the bossed bow-shaped bracket and the cylinder part uses a locking device, including: the cylinder part is stably positioned and fitted on the support ring, the bossed bow-shaped bracket is tightly positioned and fitted with the positioning and pressing assembly, and the positioning and pressing assembly slides on the support to the corresponding position of the cylinder part. Since the positioning and pressing assembly slides on the support to the corresponding position of the cylinder part and keeps the bossed bow-shaped bracket in a stable state for assembly with the cylinder part, the problem that the circumferential elastic clamping of the front clamping block and the rear clamping block cannot stably press and fix the bossed bow-shaped bracket and the cylinder part for assembly is solved.

Description

Technical Field

[0001] The present invention relates to an assembly method and a locking device for a bossed bow-shaped bracket and a cylinder part, belonging to the technical field of assembly methods and assembly devices. Background Art

[0002] In an aeroengine, it is necessary to press-fit and assemble a bossed bow-shaped bracket and a cylinder part. During the assembly process, the spacing space between the bossed bow-shaped bracket and the cylinder part is small, and it is necessary to shift the bossed bow-shaped bracket to the cylinder part and keep it stable.

[0003] In the prior art, such as an efficient variable-position tightening device and method for an engine flywheel disclosed in Chinese Patent Publication No. CN114734239A, the adopted technology is as follows: the flywheel clamping device is used to clamp the flywheel, and the front clamping vertical plate and the rear clamping vertical plate drive the front clamping block and the rear clamping block to clamp the flywheel; although the front clamping block and the rear clamping block can elastically clamp and shift the bossed bow-shaped bracket circumferentially to a position close to the cylinder part, however, due to the small spacing space between the bossed bow-shaped bracket and the cylinder part, during assembly, once the bossed bow-shaped bracket undergoes elastic reset deformation, it will fall off the front clamping block and the rear clamping block, and there is a problem that the bossed bow-shaped bracket and the cylinder part cannot be stably pressed and fixed for assembly. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an assembly method and a locking device for a bossed bow-shaped bracket and a cylinder part.

[0005] The present invention is achieved through the following technical solutions.

[0006] An assembly method for a bossed bow-shaped bracket and a cylinder part provided by the present invention uses a locking device, including: the cylinder part is stably positioned and fitted on the support ring, the bossed bow-shaped bracket is pressed and positioned in cooperation with the positioning and pressing assembly, and the positioning and pressing assembly slides on the support to the corresponding position of the cylinder part.

[0007] A locking device includes:

[0008] A bottom plate;

[0009] A support ring, which is fixed on the bottom plate;

[0010] A support, which is fixed on the end of the bottom plate far from the support ring;

[0011] A positioning and pressing assembly capable of pressing and positioning in cooperation with the bossed bow-shaped bracket, which is controllably slidably installed on the support. After the bossed bow-shaped bracket is pressed and positioned in cooperation with the positioning and pressing assembly, the bossed bow-shaped bracket is in a stable state and is moved to the corresponding position of the cylinder part and kept stable for assembly.

[0012] The positioning and pressing assembly includes: a positioning block which is slidably mounted on the support through a pin;

[0013] A positioning surface and a groove positioning surface are provided on the end of the positioning block facing the support ring. The positioning surface is used to position and support the positioning surface of the arcuate bracket with a boss, and the groove positioning surface is used to position the upper and lower positions on the outside of the arcuate bracket with a boss;

[0014] A positioning pin. A central hole is provided on the positioning block, and the central hole communicates with the positioning surface. A positioning pin is installed in the central hole for positioning and mating with the through hole on the arcuate bracket with a boss;

[0015] A hinge lock that is rotatably hinged to the positioning block. The locking hook end of the hinge lock has a pressing surface, and the pressing surface is used to press the inner side of the arcuate bracket with a boss. When the pressing surface presses the inner side of the arcuate bracket with a boss, the arcuate bracket with a boss is pressed, fixed, and limited in the groove positioning surface of the positioning block;

[0016] A spring that provides an auxiliary force for the hinge lock to be fastened to the inner side of the arcuate bracket with a boss on the positioning block.

[0017] The support has a square hole, and the positioning block is a cube and is slidably matched with the square hole on the support.

[0018] An insertion pin hole A is provided on the support located on the side of the square hole, and an insertion pin hole B is provided on the positioning block. An insertion pin is inserted into the insertion pin hole B and the insertion pin hole A.

[0019] The cylindrical surface section A of the positioning pin is in positioning fit with the through hole on the arcuate bracket with a boss, and the cylindrical surface section B of the positioning pin is in fit with the central hole of the positioning block. There is a stepped interval between the cylindrical surface section A and the cylindrical surface section B.

[0020] The hinge lock is two and is rotatably hinged on two surfaces of the positioning block. Two grooves are provided on the two surfaces of the positioning block, and two rotating shaft holes are provided on both sides of the two grooves. The hinge lock is provided with a rotating shaft hole and is rotatably hinged in the two rotating shaft holes through a rotating shaft, realizing the rotatable hinge connection between the hinge lock and the positioning block.

[0021] A handle hole is provided on the end of the positioning block away from the two rotating shaft holes, and a handle is installed in the handle hole. The handle is used to facilitate applying force to the positioning block to slide on the support.

[0022] Two mating surfaces are provided on both sides of the hinge lock for limiting fit with the two grooves.

[0023] A counterbore is provided at the end of the hinge lock away from the pressing surface. One end of the spring is installed in the counterbore of the hinge lock, and two counterbores are provided at the corresponding positions of the positioning block for the other end of the spring to be installed in the two counterbores of the positioning block.

[0024] The beneficial effects of the present invention are as follows: Since the positioning and pressing assembly slides on the support to the corresponding position of the cylindrical part, and keeps the bow-shaped bracket with a boss in a stable state to assemble with the cylindrical part, it solves the problem that the circumferential elastic clamping of the front clamping block and the rear clamping block cannot stably press and fix the bow-shaped bracket with a boss to assemble with the cylindrical part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the front view of the present invention;

[0026] Figure 2 is the top view of the present invention;

[0027] Figure 3 is the front view of the support of the present invention;

[0028] Figure 4 is the top view of the support of the present invention;

[0029] Figure 5 is the front view of the positioning block of the present invention;

[0030] Figure 6 is the top view of the positioning block of the present invention;

[0031] Figure 7 is the front view of the positioning pin of the present invention;

[0032] Figure 8 is the front view of the hinge lock of the present invention;

[0033] Figure 9 is the top view of the hinge lock of the present invention;

[0034] In the figures: 1 - bottom plate; 11 - cylindrical pin A; 12 - screw A; 13 - cylindrical pin B; 14 - screw B; 2 - support ring; 3 - support; 4 - positioning block; 41 - positioning surface; 42 - groove positioning surface;  43 - center hole; 44 - two shaft holes; 45 - two grooves; 46 - two counterbores; 47 - square guiding surface; 48 - insertion pin hole; 49 - handle hole; 5 - positioning pin; 51 - cylindrical surface section A; 52 - cylindrical surface section B; 6 - hinge lock; 61 - pressing surface; 62 - shaft hole; 63 - counterbore; 64 - mating surface; 7 - rotating shaft; 8 - spring; 9 - insertion pin; 10 - handle; 15 - cylindrical part; 16 - bow-shaped bracket with a boss. DETAILED DESCRIPTION OF THE INVENTION

[0035] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0036] As Figures 1 to 9 shown.

[0037] A locking device of the present application realizes the stable feeding of the bossed bow-shaped bracket 16 to be assembled with the cylindrical part 15 at a distance. The locking device includes:

[0038] A bottom plate 1 serving as a stress base;

[0039] A support ring 2 is installed on the bottom plate 1 and limited and fixed by a cylindrical pin A11 and a screw A12. A step is provided at the top of the support ring 2 to cooperate with the axial bottom of the cylindrical part 15 for positioning, ensuring the stable state of the cylindrical part 15;

[0040] A support 3 is fixed on the end of the bottom plate 1 away from the support ring 2 by a cylindrical pin B13 and a screw B14. A positioning and pressing assembly is controllably slidably installed on the support 3. After the bossed bow-shaped bracket 16 is pressed and positioned in cooperation with the positioning and pressing assembly, the bossed bow-shaped bracket 16 is moved to the corresponding position of the cylindrical part 15 in a stable state and assembled while remaining stable.

[0041] Since after the bossed bow-shaped bracket 16 is pressed and positioned in cooperation with the positioning and pressing assembly, the positioning and pressing assembly is controllably slid on the support 3 to the corresponding position of the cylindrical part 15, and the positioning and pressing assembly keeps the bossed bow-shaped bracket 16 in a stable state to be assembled with the cylindrical part 15, the problem that the circumferential elastic clamping of the front clamping block and the rear clamping block cannot stably press and fix the bossed bow-shaped bracket for assembly with the cylindrical part is solved.

[0042] The positioning and pressing assembly includes: a positioning block 4. The support 3 is provided with a square hole 31. The positioning block 4 is a cube and is slidably matched with the square hole 31 on the support 3. The outer periphery of the cube-shaped positioning block 4 has a square guiding surface 47. An insertion hole A32 is provided on the support 3 on the side of the square hole 31. An insertion hole B48 is provided on the positioning block 4. An insertion pin 9 is inserted into the insertion hole B48 and the insertion hole A32. When the insertion pin 9 is taken out, the positioning block 4 and the support 3 are slidably matched, realizing that the positioning block 4 of the positioning and pressing assembly can be controllably slidably installed on the support 3 through the insertion pin 9.

[0043] A positioning surface 41 and a groove positioning surface 42 are provided at the end of the positioning block 4 close to the support ring 2. The positioning surface 41 is used to position and support the positioning surface of the bossed bow-shaped bracket 16, and the groove positioning surface 42 is used to position the upper and lower positions on the outside of the bossed bow-shaped bracket 16.

[0044] A central hole 43 is provided on the positioning block 4. The central hole 43 communicates with the positioning surface 41. A positioning pin 5 is installed in the central hole 43 and is positioned and matched with the through hole on the bossed bow-shaped bracket 16, realizing the positioning and matching between the positioning and pressing assembly and the bossed bow-shaped bracket 16.

[0045] The cylindrical surface section A51 of the positioning pin 5 is in positioning fit with the through hole on the bossed bow-shaped bracket 16, and the cylindrical surface section B52 of the positioning pin 5 is in fit with the central hole 43 of the positioning block 4. There is a stepped interval between the cylindrical surface section A51 and the cylindrical surface section B52.

[0046] The positioning and pressing assembly further includes: a hinge lock 6 rotatably hinged to the positioning block 4. There are two hinge locks 6 rotatably hinged to two sides of the positioning block 4. Two slots 45 are provided on two sides of the positioning block 4, and two rotating shaft holes 44 are provided on both sides of the two slots 45. A rotating shaft hole 62 is provided on the hinge lock 6 and is rotatably hinged in the two rotating shaft holes 44 through a rotating shaft 7, realizing the rotatable hinge connection between the hinge lock 6 and the positioning block 4.

[0047] A handle hole 49 is provided at the end of the positioning block 4 far from the two rotating shaft holes 44. A handle 10 is installed in the handle hole 49, and it is convenient to apply force to slide the positioning block 4 on the support 3 through the handle 10.

[0048] The locking hook end of the hinge lock 6 has a pressing surface 61 for pressing the inner side of the bossed bow-shaped bracket 16. When the pressing surface 61 presses the inner side of the bossed bow-shaped bracket 16, the bossed bow-shaped bracket 16 is pressed and fixed and limited in the groove positioning surface 42 of the positioning block 4. At this time, the cylindrical surface section A51 of the positioning pin 5 is inserted into the through hole of the bossed bow-shaped bracket 16 for positioning, so that the bossed bow-shaped bracket 16 and the positioning and pressing assembly are in pressing and positioning fit.

[0049] Two mating surfaces 64 are provided on both sides of the hinge lock 6 for limiting fit with the two slots 45 to prevent the hinge lock 6 from moving on the positioning block 4.

[0050] The positioning and pressing assembly further includes: a spring 8. A counterbore 63 is provided at the end of the hinge lock 6 far from the pressing surface 61. One end of the spring 8 is installed in the counterbore 63 of the hinge lock 6. Two counterbores 46 are provided on the positioning block 4 corresponding to the counterbore 63. The other end of the spring 8 is installed in the two counterbores 46 of the positioning block 4. The spring 8 provides an auxiliary force for the hinge lock 6 to be fastened to the inner side of the bossed bow-shaped bracket 16 on the positioning block 4.

[0051] An assembly method of a bossed bow-shaped bracket and a cylindrical part in this application includes: the cylindrical part 15 is stably positioned and fitted on the support ring 2, the bossed bow-shaped bracket 16 and the positioning and pressing assembly are in pressing and positioning fit, the positioning and pressing assembly slides on the support 3 to the corresponding position of the cylindrical part 15, and the positioning and pressing assembly keeps the bossed bow-shaped bracket 16 in a stable state for assembly with the cylindrical part 15, solving the problem that the circumferential elastic clamping of the front clamping block and the rear clamping block cannot stably press and fix the bossed bow-shaped bracket and the cylindrical part for assembly.

[0052] The specific assembly method of the bossed bow-shaped bracket and the cylindrical part is as follows:

[0053] The finger force F presses two hinge latches 6, overcoming the elastic force of the spring 8, causing the hinge latches 6 to rotate around the rotating shaft 7, and the pressing surface 61 forms an open state; the through hole of the arcuate bracket 16 with a boss is guided and positioned in cooperation with the cylindrical surface 51 of the positioning pin 5, and the arcuate bracket 16 with a boss is moved so that its positioning surface abuts against the positioning surface 41 of the positioning block 4, and the upper and lower edges of the arcuate bracket 16 with a boss are clamped into the groove positioning surface 42 of the positioning block 4; the finger force F is released, and the elastic force generated by the spring 8 drives the hinge latches 6 to rotate around the rotating shaft 7, and the pressing surface 61 of the hinge latches 6 contacts and presses the inner pressing surface of the arcuate bracket 16 with a boss, and the arcuate bracket 16 with a boss is pressed and fixed and limited in the groove positioning surface 42 of the positioning block 4, realizing the pressing and positioning cooperation between the arcuate bracket 16 with a boss and the positioning and pressing assembly; under the guidance of the square hole 31 of the support 3, the positioning block 4 is moved so that the pin hole 48 on the positioning block 4 and the pin hole 32 on the support 3 are in the same position and the pin 9 is inserted, so that the positioning block 4 is stably stopped at the established position on the support 3 to ensure that the arcuate bracket 16 with a boss is stably in the assembly position on the cylindrical part 15 for assembly.

[0054] After the assembly operation is completed, the finger force F presses two hinge latches 6, overcoming the elastic force of the spring 8, causing the two hinge latches 6 to rotate around the rotating shaft 7, and the pressing surfaces 61 thereon form an open state, disengaging the inner pressing surface of the arcuate bracket 16 with a boss; the pin 9 is withdrawn, and the positioning block 4 is moved so that the positioning and pressing assembly is separated from the assembly formed by the arcuate bracket 16 with a boss and the cylindrical part 15.

Claims

1. An assembly method for a bossed bow-shaped bracket and a cylinder part, characterized in that, A locking device is used. The locking device includes: A bottom plate (1); A support ring (2), and the support ring (2) is fixed on the bottom plate (1); A support (3), and the support (3) is fixed on the end of the bottom plate (1) away from the support ring (2); A positioning and pressing assembly capable of pressing and positioning cooperation with the arcuate bracket (16) with a boss. The positioning and pressing assembly is controllably slidably mounted on the support (3). After the arcuate bracket (16) with a boss is pressed and positioned in cooperation with the positioning and pressing assembly, the arcuate bracket (16) with a boss is moved to the corresponding position of the cylindrical part (15) in a stable state and kept stable for assembly; It further includes: a positioning block (4), and the positioning block (4) is controllably slidably mounted on the support (3) through a pin (9); A positioning surface (41) and a groove positioning surface (42) are provided on the end of the positioning block (4) facing the support ring (2). The positioning surface (41) is used for positioning and supporting the positioning surface of the arcuate bracket (16) with a boss, and the groove positioning surface (42) is used for positioning the upper and lower positions on the outside of the arcuate bracket (16) with a boss; A positioning pin (5). A central hole (43) is provided on the positioning block (4), and the central hole (43) communicates with the positioning surface (41). The positioning pin (5) is installed in the central hole (43) for positioning cooperation with the through hole on the arcuate bracket (16) with a boss; A hinge lock (6) rotatably hinged to the positioning block (4). The lock hook end of the hinge lock (6) has a pressing surface (61), and the pressing surface (61) is used for pressing the inner side of the arcuate bracket (16) with a boss. When the pressing surface (61) presses the inner side of the arcuate bracket (16) with a boss, the arcuate bracket (16) with a boss is pressed and fixed and limited in the groove positioning surface (42) of the positioning block (4); A spring (8), and the spring (8) provides an auxiliary force for the hinge lock (6) to be fastened on the inner side of the arcuate bracket (16) with a boss on the positioning block (4); The assembly method includes: the cylindrical part (15) is stably positioned and fitted on the support ring (2), the arcuate bracket (16) with a boss is pressed and positioned in cooperation with the positioning and pressing assembly, and the positioning and pressing assembly slides on the support (3) to the corresponding position of the cylindrical part (15).

2. The assembling method of the bossed bow-shaped bracket and the cylinder part according to claim 1, characterized in that, It includes: The support (3) is provided with a square hole (31), and the positioning block (4) is a cube and is slidably fitted with the square hole (31) on the support (3).

3. The assembly method of the bossed bow-shaped bracket and the cylinder part as described in claim 1, characterized in that, It includes: An insertion pin hole A (32) is provided on the support (3) on the side of the square hole (31), and an insertion pin hole B (48) is provided on the positioning block (4). An insertion pin (9) is inserted into the insertion pin hole B (48) and the insertion pin hole A (32).

4. The assembling method of the bossed bow-shaped bracket and the cylinder part according to claim 1, characterized in that It includes: The hinge lock (6) is rotatably hinged on two surfaces of the positioning block (4). Two grooves (45) are provided on the two surfaces of the positioning block (4), and two rotating shaft holes (44) are provided on both sides of the two grooves (45). The hinge lock (6) is provided with a rotating shaft hole (62) and is rotatably hinged in the two rotating shaft holes (44) through a rotating shaft (7) to realize the rotatable hinge connection between the hinge lock (6) and the positioning block (4).

5. The assembling method of the bossed bow-shaped bracket and the cylinder part according to claim 4, wherein, It includes: A handle hole (49) is provided at the end of the positioning block (4) far away from the two shaft holes (44). A handle (10) is installed in the handle hole (49). By means of the handle (10), it is convenient to apply force to the positioning block (4) to slide on the support (3).

6. The assembly method of the bossed bow-shaped bracket and the cylinder part according to claim 4, characterized in that, Comprising: The two grooves (45) are in limit fit with the mating surfaces (64) provided on both sides of the hinge lock (6).

7. The assembly method of the bossed bow-shaped bracket and the cylinder part according to claim 1, characterized in that, Comprising: A counterbore (63) is provided at the end of the hinge lock (6) far away from the pressing surface (61). One end of a spring (8) is installed in the counterbore (63) of the hinge lock (6). Two counterbores (46) are provided at the position of the positioning block (4) corresponding to the counterbore (63). The other end of the spring (8) is installed in the two counterbores (46) of the positioning block (4).

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