Device and method for quickly disassembling and assembling complete machine based on pulsating line

Abstract

The invention provides a device and a method for quickly disassembling and assembling a complete machine based on a pulsating line. The device comprises a transfer vehicle chassis, a transfer device, a pull rod and a transfer ring, the method comprises the following steps: step 1, entering a station; secondly, butt joint is carried out, the engine gradually descends, and the engine makes contact with the switching device; the pull rod and the engine are connected and gradually locked, and when the tension sensor on the pull rod displays that the tension reaches a set value, the connection point of the engine and the C-shaped ring on the engine is removed; and thirdly, butt joint is completed, and auxiliary fixing is carried out. A proper interface position is selected, the tension sensor is arranged at the connecting point of the equipment and the engine, the mounting and dismounting time is determined by monitoring tension changes, it is guaranteed that the equipment is quickly mounted and dismounted at a time, and quick circulation of the whole engine is achieved; and the connection method between the engine complete machine lifting appliance and the complete machine transport vehicle greatly avoids the use of a wrench, reduces the labor intensity of workers, and saves the assembly time.

Description

Technical Field

[0001] The invention relates to the technical field of engine transfer, and in particular to a device and method for quick disassembly and assembly of a whole machine based on a pulsating line. Background Art

[0002] As a high-tech industry in China, aircraft engines have strict requirements in every link. As the last checkpoint before delivery, the aircraft engine test run has particularly strict process flow and process requirements. After the aircraft engine is assembled into a complete machine, different process steps need to be completed at different workstations. Due to the fixed nature of the engine installation points, the engine must be installed from the engine transport vehicle to the engine pre-assembly vehicle, so that the engine installation points are exposed, and then the engine is installed from the pre-assembly vehicle to the engine bench mounting frame. Since the fixation of aircraft engines at each workstation has strict installation requirements, the transfer and fixation between different workstations is a task that accounts for a high proportion of the workload in the production process.

[0003] Before the external assembly of the engine, it is necessary to use an engine hoist and a complete machine transport vehicle for transportation. At present, when installing and disassembling between the engine hoist and the complete machine transport vehicle, it is necessary to install and disassemble a large number of threaded connectors, and multiple adjustments are often required. The installation and disassembly speed is slow, which is not suitable for the quick installation and disassembly method of tooling and is inefficient. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention proposes a device and method for quick disassembly and assembly of a whole machine based on a pulsating line, selects a suitable interface position, designs an interface tooling matching it, and sets a tension sensor at the connection point between the equipment and the engine. The installation and disassembly timing is determined by monitoring the tension change, ensuring that the installation and disassembly of the equipment can be completed quickly in one go, thus realizing the rapid circulation of the whole engine. The connection method between the whole engine hoist and the whole engine transport vehicle avoids the use of wrenches to a large extent, reduces the labor intensity of workers, and saves assembly time.

[0005] In view of this, on the one hand, a device for quick disassembly and assembly of a whole machine based on a pulsating line of the present invention comprises a transfer vehicle chassis, an adapter, a pull rod and an adapter ring; the adapter, the pull rod and the adapter ring are all arranged on the upper end surface of the transfer vehicle chassis, and the adapter is arranged between the pull rod and the adapter ring, the pull rod is arranged on one end of the transfer vehicle chassis, and a tension sensor is arranged on the pull rod; the adapter ring is arranged at the other end of the transfer vehicle chassis.

[0006] Preferably, it also includes a fine-tuning trolley, which includes a rotating frame connected to rotate with two degrees of freedom, lateral and longitudinal. The adapter and the pull rod are arranged on the fine-tuning trolley.

[0007] Furthermore, the adapter is also connected to a fine-tuning device, and the fine-tuning device is arranged on the fine-tuning trolley.

[0008] Preferably, the transfer device includes a longitudinal support frame, a transverse tie rod support, an arc-shaped bracket, a swing support seat, a rear tie rod and an oblique support; one end of the longitudinal support frame is connected to the chassis of the transfer vehicle, and the other end is connected to the middle position of the transverse tie rod support; one end of the transverse tie rod support is connected to the bottom end of the arc-shaped bracket, and the top end of the arc-shaped bracket is connected to the swing support seat; the other end of the transverse tie rod support is connected to one end of the rear tie rod, and the other end of the rear tie rod is connected to the chassis of the transfer vehicle; the oblique support is supported between the longitudinal support frame and the chassis of the transfer vehicle.

[0009] Preferably, two ends of the pull rod are respectively connected to the engine and the chassis of the conversion vehicle; and the tension sensor is electrically connected to the human-machine interface.

[0010] Preferably, the two ends of the connecting ring are respectively connected to the engine and the chassis of the conversion vehicle; and the upper end of the connecting ring is provided with an arc-shaped support.

[0011] On the other hand, a method for quick disassembly and assembly of a whole machine based on a pulse line, using the above-mentioned device for quick disassembly and assembly of a whole machine based on a pulse line, comprises the following steps:

[0012] Step 1: Enter the workstation

[0013] The whole machine quick disassembly and assembly device enters the workstation below the engine to be transported and aligns with the engine;

[0014] Step 2: Connect

[0015] The engine is gradually lowered to make the engine contact with the adapter; the pull rod is connected to the engine and gradually locked, and when the tension sensor on the pull rod shows that the tension reaches the set value, the connection point between the engine and the C-shaped ring on the engine is removed;

[0016] Step 3: Complete docking and assist in fixing

[0017] After the engine is separated from the C-shaped ring, the engine is completely fixed to the device for quick disassembly and quick assembly of the whole machine, and an adapter ring is used to assist in fixing the front end of the engine to complete the process of quick disassembly and quick assembly of the whole machine.

[0018] Preferably, in step one, the whole machine quick-disassembly and quick-assembly device is aligned with the engine so that the front end of the engine is aligned with the adapter ring, and the engine is aligned with the swing support seat; during the alignment process, when there is an error in the alignment, fine-tuning is performed through the fine-tuning device until the engine is completely aligned with the swing support seat.

[0019] Preferably, in step 2, the contact between the engine and the adapter is that the lower surface of the engine contacts the arc-shaped bracket of the adapter, and the swing support seat of the adapter is connected to the ear support of the engine.

[0020] Preferably, in step three, the use of an adapter ring to assist in fixing the front end of the engine is to fix the arc-shaped support on the adapter ring to the bottom of the flange of the front end of the engine.

[0021] The beneficial effects of the present invention are:

[0022] 1. In the present invention, a tension sensor is arranged on the tooling of the engine interface, and the method of determining the disassembly and assembly timing of the connection point by observing the change of the tension value ensures that the installation and disassembly process is stress-free and the installation and disassembly are successful at one time. The operation process is simple and only the pin shaft needs to be installed and disassembled, which saves assembly time.

[0023] 2. The connection method between the complete engine lifting device and the complete engine transport vehicle of the present invention replaces the method of using the complete engine lifting device to transport the engine, which greatly reduces the use of wrenches and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is the overall structural front view of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the fine-tuning trolley of the present invention;

[0027] Figure 4 It is a schematic diagram of the switching device of the present invention;

[0028] In the figure: 1. chassis of transfer vehicle; 2. adapter; 21. longitudinal support frame; 22. transverse tie rod support; 23. arc bracket; 24. swing support seat; 25. rear tie rod; 26. oblique support; 3. tie rod; 4. adapter ring; 41. arc support; 5. fine-tuning trolley; 6. fine-tuning device; 7. engine; 71. flange. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] On the one hand, see Figures 1 to 3As shown, a device for quick disassembly and assembly of a whole machine based on a pulsating line of the present invention comprises a transfer vehicle chassis 1, an adapter 2, a pull rod 3 and an adapter ring 4; the adapter 2, the pull rod 3 and the adapter ring 4 are all arranged on the upper end surface of the transfer vehicle chassis 1, and the adapter 2 is arranged between the pull rod 3 and the adapter ring 4, the pull rod 3 is arranged on one end of the transfer vehicle chassis 1, and a tension sensor is arranged on the pull rod 3; the adapter ring 4 is arranged on the other end of the transfer vehicle chassis 1.

[0031] In this embodiment, the chassis 1 of the transfer vehicle is an AGV (Automated Guided Vehicle) body, which supports the quick-disassembly and quick-assembly device of the whole machine. The adapter 2 is installed on the chassis 1 of the transfer vehicle, and is used for direct docking with the engine 7 to be transferred. The engine 7 to be transferred is clamped and fixed on the transfer station by a C-ring. Preferably, an automatic navigation system is also provided on the chassis 1 of the transfer vehicle, which is used to locate and control the chassis 1 of the transfer vehicle to travel to the loading and unloading position of the engine 7; and a lifting cylinder is provided on the chassis of the transfer vehicle chassis 1, and the number of the lifting cylinders is four.

[0032] For further information, see Figure 3 As shown, it also includes a fine-tuning trolley 5, which includes a rotating frame connected to rotate with two degrees of freedom in the horizontal and vertical directions; the adapter 2 and the pull rod 3 are arranged on the fine-tuning trolley 5.

[0033] In this embodiment, the fine-tuning trolley 5 is used to perform manual fine-tuning in the lateral and longitudinal directions after the transfer vehicle chassis 1 is accurately positioned; the adapter 2 is installed on the transfer vehicle chassis 1 through the fine-tuning trolley 5, the lower end of the fine-tuning trolley 5 is fixed on the frame of the transfer vehicle chassis 1, and the upper end of the fine-tuning trolley 5 is connected to the adapter 2; the fine-tuning trolley 5 is an important load-bearing structure, which is welded with structural steel and the surface is galvanized after welding.

[0034] See also Figure 4 As shown, the transfer device 2 includes a longitudinal support frame 21, a transverse tie rod support 22, an arc-shaped bracket 23, a swing support seat 24, a rear tie rod 25 and an oblique support 26; one end of the longitudinal support frame 21 is connected to the transfer vehicle chassis 1, and the other end is connected to the middle position of the transverse tie rod support 22; one end of the transverse tie rod support 22 is connected to the bottom end of the arc-shaped bracket 23, and the top end of the arc-shaped bracket 23 is connected to the swing support seat 24; the other end of the transverse tie rod support 22 is connected to one end of the rear tie rod 25, and the other end of the rear tie rod 25 is connected to the transfer vehicle chassis 1; the oblique support 26 is supported between the longitudinal support frame 21 and the transfer vehicle chassis 1.

[0035] In this embodiment, the longitudinal support frame 21 is arranged longitudinally, and the bottom end of the longitudinal support frame 21 is connected to the transfer vehicle chassis 1 through the fine-tuning trolley 5; the top of the longitudinal support frame 21 is connected to the middle part of the transverse tie rod support 22, and the number of transverse tie rod supports 22 is two, which are horizontally arranged on both sides of the top of the longitudinal support frame 21, and the same end of the two transverse tie rod supports 22 is connected to the arc bottom of the arc bracket 23. The arc bracket 23 is an arc-shaped structure and plays a supporting role. The two top end points of the arc bracket 23 are each connected to a swing support seat 24, and the two swing support seats 24 are respectively connected to the interfaces on both sides of the body of the engine 7; the other ends of the two transverse tie rod supports 22 are respectively connected to a rear tie rod 25, and the other ends of the rear tie rod 25 are connected to the transfer vehicle chassis 1 through the fine-tuning trolley 5; the number of oblique supports 26 is two, one end of the oblique support 26 is connected to the side wall of the longitudinal support frame 21, and the other end is connected to the transfer vehicle chassis 1 through the fine-tuning trolley 5.

[0036] See also Figure 1 and 2 As shown, the two ends of the pull rod 3 are respectively connected to the engine 7 and the chassis 1 of the transfer vehicle; the tension sensor is electrically connected to the human-machine interface.

[0037] In this embodiment, there are two pull rods 3, one end of which is arranged on the chassis 1 of the transfer vehicle and on the end of the same side as the adapter 2 through a fine-tuning trolley 5, and the other end of the pull rod 3 is connected to both sides of the bottom of the engine 7. A tension sensor is arranged on the pull rod 3, and the tension sensor is electrically connected to the human-machine interface, which is arranged on the chassis 1 of the transfer vehicle. The value displayed on the human-machine interface is used to monitor whether the center of gravity of the engine 7 is completely transferred to the adapter 2, so as to realize the function of accurately monitoring the center of gravity of the engine 7 and meet the needs of quick installation or quick unloading. Preferably, the tension sensor is a sensor with a bearing capacity of 2t and an accuracy of 0.2%; the sensor outputs a millivolt signal and is powered by DC 12V.

[0038] See also Figure 1 and Figure 2 As shown, the two ends of the connecting ring are respectively connected to the engine 7 and the chassis 1 of the conversion vehicle; the upper end of the connecting ring is provided with an arc-shaped support 41.

[0039] In this embodiment, the bottom end of the connecting ring is arranged at the front end of the conversion vehicle chassis 1, and the top end of the connecting ring is connected to the engine 7 through an arc-shaped support 41 to assist in fixing the front of the engine 7.

[0040] See also Figure 1 As shown, the adapter 2 is also connected to a fine-tuning device 6 , and the fine-tuning device 6 is arranged on the fine-tuning trolley 5 .

[0041] In this embodiment, the fine-tuning device 6 is arranged on the fine-tuning trolley 5 and is connected to the adapter 2; the fine-tuning device 6 includes a rotating roller, which drives the adapter 2 to move forward and backward along the chassis 1 of the transfer vehicle through rotation, so that the adapter 2 is completely aligned with the ear support on the engine 7.

[0042] On the other hand, see Figure 1-Figure 4 As shown, a method for quick disassembly and assembly of a whole machine based on a pulsating line of the present invention adopts the above-mentioned device for quick disassembly and assembly of a whole machine based on a pulsating line, and comprises the following steps:

[0043] Step 1: Enter the workstation and align

[0044] The device for quick disassembly and assembly of the whole machine enters the position below the engine 7 to be transported and aligns with the engine 7;

[0045] Step 2: Connect

[0046] The engine 7 is gradually lowered to make the engine 7 contact with the adapter 2; the pull rod 3 is connected to the engine 7 and gradually locked; when the tension sensor on the pull rod 3 shows that the tension reaches the set value, the connection point between the engine 7 and the C-shaped ring is removed;

[0047] Step 3: Complete docking and assist in fixing

[0048] After the engine 7 is separated from the C-shaped ring, the engine 7 is completely fixed to the device for quick disassembly and quick assembly of the whole machine, and the adapter ring 4 is used to assist in fixing the front end of the engine 7 to complete the process of quick disassembly and quick assembly of the whole machine.

[0049] As a preferred embodiment, in the above step 1, the quick-disassembly and quick-assembly device of the whole machine is aligned with the engine 7 so that the front end of the engine 7 is aligned with the adapter ring 4, and the engine 7 is aligned with the swing support seat 24.

[0050] In this embodiment, the chassis 1 of the transfer vehicle automatically locates and controls the whole machine quick disassembly and quick installation device to travel to the position below the engine 7 to be transferred through the automatic navigation system along a predetermined route, so that the C-ring on the engine 7 to be transferred is between the adapter 2 and the adapter ring 4, the adapter ring 4 is aligned with the front end flange 71 of the engine 7, and the ear support of the engine 7 to be transferred is aligned with the swing support seat 24 of the adapter 2. In order to be compatible with two types of four engines 7, the distance between the upper plane of the chassis 1 of the transfer vehicle and the ground is 600mm, and a sufficient safety distance needs to be left between the engine 7 support port and the plane of the body, so that whether the C-ring opening is facing up or down, the whole machine quick disassembly and quick installation device can run to the bottom of the engine 7.

[0051] Furthermore, during the alignment process, when there is an error in the alignment, fine adjustment is performed through the fine adjustment device 6 until the engine 7 and the swing support seat 24 are completely aligned.

[0052] In this embodiment, the rotating roller on the fine-tuning device 6 is rotated to slightly move the adapter 2 forward and backward along the transfer vehicle chassis 1, so that the swing support seat 24 of the adapter 2 is completely aligned with the ear support of the engine 7. Preferably, the fine-tuning trolley 5 is manually adjusted in both the lateral and longitudinal directions simultaneously.

[0053] As a preferred embodiment, in the above step 2, the contact between the engine 7 and the adapter 2 is that the lower surface of the engine 7 contacts the arc-shaped bracket 23 of the adapter 2, and the swing support seat 24 of the adapter 2 is connected to the engine 7.

[0054] In this embodiment, the engine 7 to be transported is clamped by the C-shaped ring and gradually descends until the lower surface of the engine 7 contacts the arc-shaped bracket 23 of the adapter 2, and the swing support seat 24 is connected to the ear support of the engine 7; as the engine 7 descends, the center of gravity of the engine 7 slowly transfers to the adapter 2.

[0055] Further, the swing support seat 24 is connected to the engine 7 as an ear support connection between the swing support seat 24 and the engine 7.

[0056] As a preferred embodiment, in the above step 2, the two tie rods 3 are locked to the lower surface of the engine 7 .

[0057] In this embodiment, when the engine 7 gradually falls onto the adapter 2, the pull rod 3 is subjected to tension, and the value of the tension sensor on the pull rod 3 is displayed in the human-machine interface. When the tension reaches a certain value, it means that the weight of the engine 7 is completely transferred to the adapter 2, and the pin between the multi-freedom multi-platform C-ring and the engine 7 is pulled out.

[0058] As a preferred embodiment, in the above step three, the adapter ring 4 is used to assist in fixing the front end of the engine 7 by fixing the arc-shaped support 41 on the adapter ring 4 to the bottom of the flange 71 at the front end of the engine 7 .

[0059] In this embodiment, in order to ensure that the connecting pin between the engine 7 and the C-shaped ring of the multi-degree-of-freedom assembly platform is easily pulled out, the arc-shaped support 41 of the adapter ring 4 is supported and the bottom of the flange 71 at the front end of the engine 7 is completely fitted with the flange 71 to play a supporting role. If not necessary, the adapter ring 4 is folded inward and fixed by a locking device.

[0060] Preferably, after the engine 7 is separated from the multi-freedom multi-platform, it is completely fixed to the device for quick disassembly and quick installation of the whole machine, and the operator issues instructions to automatically navigate or remotely control the engine 7 to the upper hanging line; it is noted that the oil cylinder must be placed in the lowest state during transportation; after reaching the upper hanging line position, if necessary, the lifting function of the whole vehicle is used to lift the engine 7 as a whole by 100mm, so that the engine 7 can be transferred from the device for quick disassembly and quick installation of the whole machine to the pulsation line in some way. This process still requires the determination of the gravity detection value.

[0061] Preferably, through practical experience, the multi-freedom multi-assembly platform may be uneven or in various conditions, making it difficult to dock the upper body with the engine 7. The transfer vehicle chassis 1 of the whole machine quick-disassembly and quick-assembly device can also supplement the two degrees of freedom of axial rotation and pitch through the four lifting cylinders on the chassis to ensure stable and rapid docking under working conditions.

[0062] In the specific process of the method for quick disassembly and quick assembly of the whole machine on the pulsation line, the alignment of the quick disassembly and quick assembly device of the whole machine and the engine 7 is a difficult and key point. Only when they are completely aligned can the engine 7 be transferred from the platform to the quick disassembly and quick assembly device of the whole machine. Among them, the adjustment accuracy of the assembly platform and the alignment adjustment of the quick disassembly and quick assembly device of the whole machine are the key. The working principle of the present invention is as follows:

[0063] (1) Alignment refers to the alignment of the ear support of the engine 7 and the swing support seat 24 of the adapter 2;

[0064] (2) The gravity transfer monitoring of the engine 7 is calculated by the pull rod 3 and the tension sensor displayed on the pull rod 3;

[0065] (3) The alignment principle of the fine adjustment device 6 is the screw principle.

Claims

1. A device for quick disassembly and assembly of a whole machine based on a pulsating line, characterized in that: It includes a transfer vehicle chassis, a transfer device, a pull rod and an transfer ring; the transfer device, the pull rod and the transfer ring are all arranged on the upper end surface of the transfer vehicle chassis, and the transfer device is arranged between the pull rod and the transfer ring, the pull rod is arranged on one end of the transfer vehicle chassis, and a tension sensor is arranged on the pull rod; the transfer ring is arranged on the other end of the transfer vehicle chassis.

2. The whole machine quick disassembly and assembly device based on the pulse line according to claim 1 is characterized in that: It also includes a fine-tuning trolley, which includes a rotating frame connected to rotate with two degrees of freedom, horizontally and vertically; the adapter and the pull rod are arranged on the fine-tuning trolley.

3. The whole machine quick disassembly and assembly device based on the pulse line according to claim 2 is characterized in that: The adapter is also connected to a fine-tuning device, which is arranged on the fine-tuning trolley.

4. The whole machine quick disassembly and assembly device based on the pulse line according to claim 1 is characterized in that: The transfer device includes a longitudinal support frame, a transverse tie rod support, an arc-shaped bracket, a swing support seat, a rear tie rod and an oblique support; one end of the longitudinal support frame is connected to the chassis of the transfer vehicle, and the other end is connected to the middle position of the transverse tie rod support; one end of the transverse tie rod support is connected to the bottom end of the arc-shaped bracket, and the top end of the arc-shaped bracket is connected to the swing support seat; the other end of the transverse tie rod support is connected to one end of the rear tie rod, and the other end of the rear tie rod is connected to the chassis of the transfer vehicle; the oblique support is supported between the longitudinal support frame and the chassis of the transfer vehicle.

5. The whole machine quick disassembly and assembly device based on the pulse line according to claim 1 is characterized in that: The two ends of the pull rod are respectively connected to the engine and the chassis of the transfer vehicle; the tension sensor is electrically connected to the human-machine interface.

6. The whole machine quick disassembly and assembly device based on the pulse line according to claim 1 is characterized in that: The two ends of the connecting ring are respectively connected to the engine and the chassis of the conversion vehicle; the upper end of the connecting ring is provided with an arc-shaped support.

7. A method for quick disassembly and assembly of a whole machine based on a pulse line, using the device for quick disassembly and assembly of a whole machine based on a pulse line according to claim 1, characterized in that: The steps include: Step 1: Enter the workstation and align The whole machine quick disassembly and assembly device enters the workstation below the engine to be transported and aligns with the engine; Step 2: Connect The engine is gradually lowered to make the engine contact with the adapter; the pull rod is connected to the engine and gradually locked, and when the tension sensor on the pull rod shows that the tension reaches the set value, the connection point between the engine and the C-shaped ring on the engine is removed; Step 3: Complete docking and assist in fixing After the engine is separated from the C-shaped ring, the engine is completely fixed to the device for quick disassembly and quick assembly of the whole machine, and an adapter ring is used to assist in fixing the front end of the engine to complete the process of quick disassembly and quick assembly of the whole machine.

8. The method for quick disassembly and assembly of a whole machine based on a pulse line according to claim 6, characterized in that: In step one, the whole machine quick-disassembly and quick-assembly device is aligned with the engine so that the front end of the engine is aligned with the adapter ring, and the engine is aligned with the swing support seat; when there is an error in the alignment, fine-tuning is performed through the fine-tuning device until the engine is completely aligned with the swing support seat.

9. The method for quick disassembly and assembly of a whole machine based on a pulsating line according to claim 6, characterized in that: In the step 2, the contact between the engine and the adapter is that the lower surface of the engine contacts the arc-shaped bracket of the adapter, and the swing support seat of the adapter is connected to the ear support of the engine.

10. The method for quick disassembly and assembly of a whole machine based on a pulse line according to claim 6, characterized in that: In step three, the use of an adapter ring to assist in fixing the front end of the engine is to fix the arc-shaped support on the adapter ring to the bottom of the flange at the front end of the engine.

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