Device and method for adjusting and installing large part in tool

Abstract

The invention belongs to a tool manufacturing technology, and particularly relates to a device and method for adjusting and installing a large part in a tool. When large-specification positioning parts need to be disassembled and assembled, the working efficiency is low, and meanwhile the surfaces of the large-specification positioning parts are damaged. The lower connecting and fixing piece and the upper connecting and fixing piece are the same in structure, are provided with the connecting columns with the ball heads on the connecting plates, and are mounted on the part and the tool respectively; one end of the upper guide rod is provided with an upper rotating head sleeved on the ball head, and the other end of the upper guide rod is provided with a boss; one end of the lower guide rod is provided with a lower rotating head sleeved on the ball head, and the other end of the lower guide rod is provided with threads; the rotary extension piece is a pipe fitting, one end of the rotary extension piece is provided with a limiting cavity for containing the boss, and an inner hole of the rotary extension piece is in threaded connection with the lower guide rod. The problems of low installation efficiency, poor installation accuracy, large potential safety hazard and frequent injury to human bodies during adjustment and installation of large-specification positioning parts and re-modification and installation in the current aircraft tool are solved. The large-specification positioning part is high in installation accuracy, high in disassembly and assembly speed and small in installation internal stress, and the service life of the large-specification positioning part is effectively prolonged.

Description

Technical Field

[0001] The invention belongs to tooling manufacturing technology, and in particular relates to a device and method for adjusting and assembling large parts in tooling. Background Art

[0002] In the manufacturing process of existing aircraft tooling, since many aircraft toolings need to adjust and assemble large-sized positioning parts, see Figure 7 The schematic diagram of the skin installation tooling is shown, in which the large-scale positioning component 71 has a profile that constrains the position and shape of the skin, has an upper beam positioning support 62 at its upper end, has a lower beam positioning support 81 at its lower end, and has three optical coordinate positioning holes in the middle. When installing the large-scale positioning component 71, the coordinates of the three optical coordinate positioning holes must be met, and the upper beam positioning support 62 must be fitted and connected to the upper frame positioning plate 63 of the skin installation tooling, and the lower beam positioning support 81 must be fitted and connected to the lower frame positioning plate of the skin installation tooling.

[0003] At present, the method for on-site assembly and installation of large-sized positioning components on aircraft tooling frames is to use locomotive hoisting and multiple people to move the large-sized positioning components to the required position, fix them with clamping mechanical tools, measure the precise installation position of the large-sized positioning components with testing instruments, and then use two people to hold the large-sized positioning components. After slightly loosening the clamping force of the clamping mechanical tools, other people use hand hammers and other tools to manually knock and move the large-sized positioning components to gradually move them to the appropriate installation position, and then repeat the above method to slowly perform precise installation work.

[0004] When large-sized positioning parts need to be disassembled and assembled, three to four people are currently required to hold the large-sized positioning parts, while others use installation tools to remove the fixing bolts and positioning pins, and then multiple people lift the large-sized positioning parts and place them on the assembly platform or the ground. This poses a great safety hazard and often causes physical injuries to personnel. This technical method has a slow working efficiency and causes surface damage to large-sized positioning parts. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for adjusting and assembling large parts in tooling, thereby eliminating the potential safety hazards in the prior art and improving assembly efficiency.

[0006] The present invention proposes a device for adjusting and assembling large parts in a tooling, the device comprises a lower connecting piece, a lower guide rod, a rotating extension piece, an upper guide rod and an upper connecting piece, wherein the lower connecting piece and the upper connecting piece have the same structure, both of which have a connecting column with a ball head on a connecting plate, and the two are respectively installed on the parts and the tooling; one end of the upper guide rod has an upper rotating head mounted on the ball head, and the other end has a boss; one end of the lower guide rod has a lower rotating head mounted on the ball head, and the other end of the rod has a thread; the rotating extension piece is a pipe fitting, and one end of the pipe has a limiting cavity for accommodating the boss, and the inner hole is threadedly connected to the lower guide rod.

[0007] Advantageously, the lower connecting piece comprises an integrated lower connecting plate, a lower connecting column and a lower ball head. The lower connecting plate is mounted on a component or a tooling, and a lower ball head is provided at the top end of the lower connecting column.

[0008] Advantageously, the upper connecting fixture comprises an integrated upper connecting plate, an upper connecting column and an upper ball head. The upper connecting plate is mounted on a tooling or component, and an upper ball head is provided at the top end of the upper connecting column.

[0009] Advantageously, the lower guide rod comprises a lower adjustment shaft and a lower rotating head at an end thereof, the lower rotating head having a lower ball placement cavity, and the lower adjustment shaft having threads.

[0010] Advantageously, the upper guide rod comprises a connecting body as a rod portion, a boss is provided at one end of the connecting body, and an upper rotating head at the other end has an upper ball placement cavity.

[0011] Advantageously, the main body of the rotary extension member is an adjustment rod with an internal threaded hole, and the limiting cavity has a through hole on the end surface through which the upper guide rod passes.

[0012] The present invention also proposes a method for adjusting and assembling large parts in a tooling by using the above-mentioned adjustment device, the method comprising the following steps:

[0013] S1. Select a sufficient number of adjustment devices as needed;

[0014] S2. Preliminarily fix the bottom of the component to the lower mounting surface of the tooling frame;

[0015] S3, connect the adjustment devices at each position, install the lower connection firmware on the tooling or parts, and install the upper connection firmware on the parts or tooling;

[0016] S4. Adjust the parts to the theoretical position by adjusting the length and angle of each adjustment device;

[0017] S5. Overall tightening.

[0018] Advantageously, the component has a plurality of optical coordinate positioning holes, and during adjustment, the positions of the optical coordinate positioning holes are adjusted according to the coordinates.

[0019] Beneficial effects: The technical method of the present invention solves the current problems of low installation efficiency, poor installation accuracy, great safety hazards and frequent physical injuries when adjusting and installing large-sized positioning parts in aircraft tooling and re-changing the installation.

[0020] Large-sized positioning components have high installation accuracy, fast disassembly and assembly speed, small internal stress during installation, and the service life of large-sized positioning components is effectively extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the adjustment device of the present invention;

[0022] Figure 2 It is a structural diagram of the upper link firmware;

[0023] Figure 3 is a structural schematic diagram of the upper lead rod;

[0024] Figure 4 is a schematic diagram of the structure of the rotating extension member;

[0025] Figure 5 It is a structural schematic diagram of the lower guide rod;

[0026] Figure 6 It is a structural diagram of the lower link firmware;

[0027] Figure 7 Schematic diagram of the skin installation tooling.

[0028] 1-lower connecting fixture, 2-lower guide rod, 3-rotating extension, 4-upper guide rod, 5-upper connecting fixture, 11-lower connecting plate, 12-lower connecting column, 13-lower ball head, 21-lower rotating head, 22-lower adjustment shaft, 23-lower ball placement cavity, 31 adjustment rod, 32-upper connecting body limit head, 33-limit cavity, 34-through hole, 35-internal thread hole, 41-boss, 42-connector, 43-upper rotating head, 44-upper ball placement cavity, 51-upper connecting plate, 52-upper connecting column, 53-upper ball head, 62-upper beam positioning support, 63-upper frame positioning plate, 71-large-size positioning parts, 81-lower beam positioning support DETAILED DESCRIPTION

[0029] The present invention firstly needs to prepare 1-2 sets of adjusting devices, which are composed of an upper connecting piece 5, an upper guide rod 4, a rotating extension piece 3, a lower guide rod 2 and a lower connecting piece 1.

[0030] The upper connecting fixture 5 is composed of an upper connecting plate 51, an upper connecting column 52 and an upper ball head 53. The upper connecting plate 51 is a disc-shaped cylinder, and four to six bolts are evenly distributed on the upper connecting plate 51 through circular holes. The upper connecting column 52 is a conical cylinder, and the upper ball head 53 is a spherical sphere larger than a semicircle. The diameter of the top of the cone of the upper connecting column 52 is smaller than the sphere diameter of the upper ball head 53. The upper connecting plate 51, the upper connecting column 52 and the upper ball head 53 are concentrically manufactured and connected as a whole.

[0031] The upper guide rod 4 is composed of a boss 41, a connector 42, an upper rotating head 43 and an upper ball placement cavity 44. The boss 41 is a disc-shaped cylinder, the connector 42 is a cylinder, the upper rotating head 43 is a spherical head shaped sphere larger than a semicircle, 44 is a spherical head shaped hollow cavity larger than a semicircle, and the upper ball placement cavity 44 is located at the inner center of the upper rotating head 43. The boss 41, the connector 42, the upper rotating head 43 and the upper ball placement cavity 44 are concentrically manufactured and connected into one.

[0032] The rotating extension member 3 is composed of an adjusting rod 31 and an upper body limiting head 32. The adjusting rod 31 and the upper body limiting head 32 are both cylindrical and concentrically manufactured as a whole. A threaded through hole 35 is made in the center of the adjusting rod 31. The upper body limiting head 32 includes a placement hole 33 and a sliding hole 34. The placement hole 33 and the sliding hole 34 are both circular holes, and the diameter of the placement hole 33 is larger than the diameter of the sliding hole 34.

[0033] The lower guide rod 2 is composed of a lower rotating head 21, a lower adjusting shaft 22 and a lower ball placing cavity 23. The lower rotating head 21 is a spherical head shaped sphere larger than a semicircle, the lower adjusting shaft 22 is a long threaded cylinder, the lower ball placing cavity 23 is a spherical head shaped hollow cavity larger than a semicircle, and the lower ball placing cavity 23 is located at the inner center of the lower rotating head 21. The lower rotating head 21, the lower adjusting shaft 22 and the lower ball placing cavity 23 are concentrically manufactured and connected as a whole.

[0034] The lower connecting piece 1 is composed of a lower connecting plate 11, a lower connecting column 12 and a lower ball head 13. The lower connecting plate 11 is a disc-shaped cylinder, and four to six bolts are evenly distributed on the lower connecting plate 11 through circular holes. The lower connecting column 12 is a conical cylinder, and the lower ball head 13 is a spherical sphere larger than a semicircle. The top diameter of the cone of the lower connecting column 12 is smaller than the sphere diameter of the lower ball head 13. The lower connecting plate 11, the lower connecting column 12 and the lower ball head 13 are concentrically manufactured and connected as a whole.

[0035] In the adjusting device, the thickness dimension of the disc of the boss 41 is the same as the height dimension of the placement hole 33 in the rotating extension part 3, and is manufactured and formed in a sliding fit tolerance dimension state; the outer diameter dimension of the connecting body 42 is the same as the inner diameter dimension of the sliding hole 34, and is manufactured and formed in a sliding fit tolerance dimension state; the outer thread dimension of the lower adjustment shaft 22 is the same as the inner thread dimension of the threaded through hole 35; the diameter dimension of the upper ball head 53 is the same as the inner diameter dimension of the upper ball placement cavity 44, and is manufactured and formed in a sliding fit; the diameter dimension of the lower ball head 13 is the same as the inner diameter dimension of the lower ball placement cavity 23, and is manufactured and formed in a sliding fit.

[0036] When the adjusting device is assembled, the boss 41 is placed in the placement hole 33, the connecting body 42 is placed in the sliding hole 34, the lower adjustment shaft 22 is threadedly placed inside the threaded through hole 35, the upper ball head 53 is placed inside the upper ball placement cavity 44, and the lower ball head 13 is placed inside the lower ball placement cavity 23.

[0037] The specific implementation steps of the present invention for adjusting and assembling large-sized positioning parts are as follows:

[0038] 1. Prepare, assemble and adjust the device;

[0039] 2. Preliminarily fix the bottom of the large-sized positioning parts to the lower mounting surface of the tooling frame;

[0040] 3. The bolts on the lower connecting plate 11 of the lower connecting piece 1 pass through the circular holes to fix the adjusting device to the side surface of the upper part of the positioning component with a large adjustment size in the tooling;

[0041] 4. The bolts on the upper connecting plate 51 of the upper connecting fixture 5 pass through the circular holes to fix the adjusting device to the upper beam side surface of the tooling frame;

[0042] 5. By rotating the rotating extension member 3, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, thereby driving the upper part of the large positioning part connected to the lower connecting member 1 to move and change its position;

[0043] 6. Repeat step 4 above to move the upper part of the large positioning part to the correct installation coordinate position where it is required to be placed, and then fix it in place.

[0044] 7. The bolts on the lower connecting plate 11 of the lower connecting piece 1 pass through the circular holes to fix the adjusting device to the side surface of the lower part of the positioning component with a large adjustment size in the tooling;

[0045] 8. The bolts on the upper connecting plate 51 of the upper connecting fixture 5 pass through the circular holes to fix the adjusting device to the side surface of the lower beam of the tooling frame;

[0046] 9. By rotating the rotating extension member 3, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, thereby driving the lower part of the large positioning part connected to the lower connecting member 1 to move and change its position;

[0047] 10. Repeat the above step 4 to move the lower part of the large positioning part to the correct installation coordinate position where it is required to be placed, and then fix it in place.

[0048] The specific implementation steps of the present invention for disassembling and assembling large-sized positioning parts are as follows:

[0049] 1. Prepare, assemble and adjust the device;

[0050] 2. The bolts on the upper connecting plate 51 of the upper connecting fixture 5 pass through the circular holes to fix the adjusting device to the upper beam side surface of the tooling frame;

[0051] 3. The bolts on the lower connecting plate 11 of the lower connecting piece 1 pass through the circular holes to fix the adjusting device to the side surface of the upper part of the positioning component with a large adjustment size in the tooling;

[0052] 4. By rotating the rotating extension member 3, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, thereby driving the upper part of the positioning component with a large size and specification that needs to be adjusted and connected to the lower connecting member 1 to move and change its position;

[0053] 5. Repeat the above step 4 to move the large positioning parts to be disassembled and assembled to the required placement position.

[0054] 6. When it is necessary to restore the working position of the large-sized positioning parts, repeat the above step 4 in reverse to move the large-sized positioning parts to be disassembled and assembled to the required placement position and complete the positioning installation work.

[0055] Example 1

[0056] Large-sized positioning parts need to be installed in large aircraft tooling. The size of large-sized positioning parts is 2200mmX400mmX30mm, and the weight is 72kg. Large-sized positioning parts are large positioning pallets. Two installation positioning holes are set above the large positioning pallet. The installation coordinates are: the installation coordinates of positioning hole 1 are X22080, Y3621.628, Z-643.929, and the installation coordinates of positioning hole 2 are X22080, Y3652.72, Z-770.156. Two installation positioning holes are also set below the large positioning pallet. The installation coordinates are: the installation coordinates of positioning hole 3 are X22080, Y4091.595, Z-2551.901, and the installation coordinates of positioning hole 4 are X22080, Y4122.687, Z-2678.128.

[0057] This embodiment requires the preparation of two sets of adjustment devices, and then the following steps are performed:

[0058] 1. Assemble two sets of adjustment devices.

[0059] 2. Preliminarily fix the bottom of the large positioning card plate to the mounting surface of the lower beam positioning support 81 of the tooling frame, and preliminarily fix the upper part of the large positioning card plate to the mounting surface of the upper beam positioning support 62 of the tooling frame.

[0060] 3. Through the four φ12 bolts on the lower connecting plate 11 of the lower connecting piece 1 through the circular holes, one set of adjusting devices is fixedly connected to the upper side surface of the large positioning card plate, and another set of adjusting devices is fixedly connected to the lower side surface of the large positioning card plate.

[0061] 4. Through the four φ12 bolts on the upper connecting plate 51 of the upper connecting fixture 5 passing through the circular holes, one set of adjusting devices is fixedly connected to the surface of the upper frame positioning plate of the aircraft tooling, and the other set of adjusting devices is fixedly connected to the surface of the lower frame positioning plate of the aircraft tooling.

[0062] 5. Loosen the initial fixation between the upper portion of the large positioning card plate and the mounting surface of the upper beam positioning support 62 of the tooling frame.

[0063] 6. By rotating the rotating extension member 3 in the first set of adjusting devices, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, driving the upper part of the large-sized positioning part connected to the lower connecting piece 1 to move and change its position.

[0064] 7. By repeating the above step 6, move the upper part of the large positioning card to the correct installation coordinate position to be placed. Through detection, it is known that the actual installation coordinates of positioning hole 1 are X22080.06, Y3621.63, Z-643.96, and the actual installation coordinates of positioning hole 2 are X22080.06, Y3652.75, Z-770.18, which meet the aircraft tooling installation tolerance dimensional accuracy requirements. Fix the upper part of the large positioning card and the upper beam positioning support 62 of the tooling frame.

[0065] 8. Loosen the initial fixation between the lower portion of the large positioning card plate and the mounting surface of the lower beam positioning support 81 of the tooling frame.

[0066] 9. By rotating the rotating extension member 3 in the second set of adjusting devices, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, driving the lower part of the large-sized positioning part connected to the lower connecting piece 1 to move and change its position.

[0067] 10. By repeating the above step 9, move the lower part of the large positioning card plate to the correct installation coordinate position to be placed. Through detection, it is known that the actual installation coordinates of positioning hole 3 are X220800.07, Y4091.56, Z-2551.86, and the actual installation coordinates of positioning hole 4 are X22080.07, Y4122.65, Z-2678.102, which meet the aircraft tooling installation tolerance dimensional accuracy requirements. Fix the lower part of the large positioning card plate and the lower beam positioning support 81 of the tooling frame to the installation surface.

[0068] 11. Remove the two sets of adjustment devices from the tooling and complete the installation of the large positioning pallet in the large aircraft tooling.

[0069] Example 2

[0070] The large-sized positioning parts have dimensions of 2060mmX3600mmX30mm and weigh 68kg. The large-sized positioning parts are large positioning pallets. In order to transport the riveted parts of the aircraft out of the aircraft tooling, the upper part of the large positioning pallet needs to be separated and loosened from the upper beam positioning support of the tooling.

[0071] This embodiment requires the preparation of a set of adjustment and assembly equipment, and then the following steps are performed:

[0072] 1. Assemble a set of adjustment devices.

[0073] 2. The adjusting device is fixedly connected to the upper side surface of the large positioning card plate by passing four φ12 bolts on the lower connecting plate 11 of the lower connecting piece 1 through the circular holes.

[0074] 3. The adjusting device is fixedly connected to the surface of the upper frame positioning plate of the aircraft tooling by passing four φ12 bolts on the upper connecting plate 51 of the upper connecting fixture 5 through the circular holes.

[0075] 4. Loosen the fixed connection between the upper portion of the large positioning card plate and the mounting surface of the upper beam positioning support 62 of the tooling frame.

[0076] 5. By rotating the rotating extension member 3 in the first set of adjusting devices, the position of the lower adjustment shaft 22 of the lower guide rod 2 in the threaded through hole 35 of the rotating extension member 3 is moved and changed, thereby driving the upper part of the large-sized positioning part connected to the lower connecting piece 1 to move and change its position.

[0077] 6. Repeat step 5 above to move the upper part of the large positioning card to the correct working position that meets the required placement.

[0078] 7. After the riveted aircraft parts are removed from the aircraft tooling, the upper part of the large positioning pallet is separated and loosened from the upper beam positioning support of the tooling.

Claims

1. A device for adjusting and assembling large parts in a tooling, characterized in that: The device comprises a lower connecting piece (1), a lower guide rod (2), a rotating extension piece (3), an upper guide rod (4) and an upper connecting piece (5), wherein the lower connecting piece (1) and the upper connecting piece (5) have the same structure, both of which have a connecting column with a ball head on the connecting plate, and the two are respectively installed on the parts and the tooling; one end of the upper guide rod (4) has an upper rotating head (43) sleeved on the ball head, and the other end has a boss (41); one end of the lower guide rod (2) has a lower rotating head (21) sleeved on the ball head, and the other end of the rod has a thread; the rotating extension piece (3) is a pipe fitting, and one end has a limiting cavity (33) for accommodating the boss (41), and the inner hole is threadedly connected to the lower guide rod (2).

2. The adjusting device according to claim 1, characterized in that: The lower connecting piece (1) comprises an integrated lower connecting plate (11), a lower connecting column (12) and a lower ball head (13); the lower connecting plate (11) is installed on a component or a tool, and a lower ball head (13) is provided at the top end of the lower connecting column (12).

3. The adjusting device according to claim 2, characterized in that: The upper connecting fixture (5) comprises an integrated upper connecting plate (51), an upper connecting column (52) and an upper ball head (53); the upper connecting plate (51) is installed on a tool or a component, and an upper ball head (53) is provided at the top of the upper connecting column (52).

4. The adjustment device according to claim 3, characterized in that: The lower guide rod (2) comprises a lower adjustment shaft (22) and a lower rotating head (21) at the end thereof, wherein the lower rotating head (21) has a lower ball placement cavity (23), and the lower adjustment shaft (22) has a thread.

5. The adjustment device according to claim 4, characterized in that: The upper guide rod (4) comprises a connecting body (42) as a rod portion, a boss (41) is provided at one end of the connecting body (42), and an upper rotating head (43) at the other end is provided with an upper ball placement cavity (44).

6. The adjustment device according to claim 5, characterized in that: The main body of the rotating extension member (3) is an adjustment rod (31) with an internal threaded hole (35), and the limiting cavity (33) has a through hole (34) on the end surface through which the upper guide rod (4) passes.

7. A method for adjusting large parts in a tool using the adjustment device according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: S1. Select a sufficient number of adjustment devices as required; S2. Preliminarily fix the bottom of the component to the lower mounting surface of the tooling frame; S3, connecting the adjustment devices at each position, installing the lower connecting fixture (1) on the tooling or component, and installing the upper connecting fixture (5) on the component or tooling; S4. Adjust the parts to the theoretical position by adjusting the length and angle of each adjustment device; S5. Overall tightening.

8. The method for adjusting and assembling according to claim 7, characterized in that: The component has a plurality of optical coordinate positioning holes, and the positions of the optical coordinate positioning holes are adjusted according to the coordinates during adjustment.

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