Precision machining device for wing spar of aircraft wing

Abstract

The invention discloses an aircraft wing spar precision machining device, and relates to the technical field of wing spar machining, the aircraft wing spar precision machining device comprises a workbench, a supporting frame and a driving mechanism are arranged on the workbench, the supporting frame is rotatably connected to the workbench, and a clamping plate used for clamping a wing spar is arranged on the supporting frame; the driving mechanism has a first stroke for driving the clamping plates to approach the spar and a second stroke for driving the supporting frame to rotate. According to the precise machining device for the wing spar of the aircraft, the wing spar in the horizontal state can be conveyed through the conveying roller shaft, the clamping plates can be driven to clamp and fix the wing spar through the first stroke of the driving mechanism, and then the supporting frame and the wing spar can be driven to synchronously overturn through the second stroke of the driving mechanism; and the wing spar can be overturned from the horizontal state to the vertical state, so that the wing spar can be conveniently conveyed, and the wing spar can be overturned to the vertical state so as to be subjected to subsequent processing and detection procedures.

Description

Technical Field

[0001] The invention relates to the technical field of wing spar processing, and in particular to a device for precision processing an aircraft wing spar. Background Art

[0002] The wing spar is the main structural component of the aircraft wing. The wing spar extends along the length of the wing and is mainly responsible for supporting the aircraft wing structure and bearing various force loads generated during flight. During the processing of the wing spar, it is generally necessary to clamp and fix it to facilitate the smooth processing or testing process.

[0003] For example, the patent document entitled "A feeding device for aircraft parts processing" with the authorization announcement number CN117862931B and the authorization announcement date May 24, 2024, includes a bottom plate, a pushing and clamping device for pushing the wing spar from the feeding plate to the feeding plate is installed on the feeding plate, and an automatic clamping device is also installed on the feeding plate. The invention device can improve the efficiency of feeding and clamping of aircraft wing spars.

[0004] In the prior art, the wing spar needs to be clamped in an upright state for processing or testing, but the wing spar is relatively thin and is prone to tilting when erected, making it inconvenient to transport and clamp it in an upright state. Summary of the invention

[0005] The object of the present invention is to provide a device for precision machining of aircraft wing beams to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A device for precision machining of an aircraft wing spar, comprising a workbench, on which are arranged: A support frame, which is rotatably connected to the workbench, and the support frame is provided with a clamping plate for clamping the wing spar; The driving mechanism has a first stroke for driving the clamping plate to approach the wing beam and a second stroke for driving the support frame to rotate.

[0007] In the above-mentioned aircraft wing beam precision machining device, the driving mechanism includes a movable block slidably connected to the workbench, a movable rod is hinged on the movable block, and the other end of the movable rod is hinged to the support frame.

[0008] The above-mentioned aircraft wing beam precision processing device has a gear rotatably connected to the support frame, and two racks are slidably connected to the support frame. The two racks are located on both sides of the gear and are meshed with the gear, and the ends of the two racks that are away from each other are respectively fixed to two clamping plates.

[0009] In the above-mentioned aircraft wing beam precision machining device, the driving mechanism also includes an elastic member, a first end of the elastic member is hinged to a rack, and a second end is movably arranged on a support frame.

[0010] In the above-mentioned aircraft wing spar precision machining device, the first stroke includes a forward stroke of driving the second end of the elastic member away from the first end to drive the clamping plate to resist the spar and a reverse stroke of driving the first end of the elastic member away from the second end to drive the clamping plate away from the spar.

[0011] In the above-mentioned aircraft wing beam precision machining device, the driving mechanism also includes a connecting block fixed on a rack, and the driving block is slidably connected to the workbench.

[0012] In the above-mentioned aircraft wing spar precision machining device, the second end of the elastic member is hinged to the movable rod, and the driving block is located between the movable block and the connecting block.

[0013] In the above-mentioned aircraft wing spar precision machining device, when the driving block moves between the movable block and the connecting block, the elastic member drives the clamping plate to contact the spar.

[0014] In the above-mentioned aircraft wing spar precision processing device, when the driving block moves toward the connecting block, the connecting block drives the clamping plate away from the spar, and the elastic member is stretched at this time; when the driving block moves toward the movable block, the movable block drives the supporting frame to flip, and the elastic member continues to stretch to force the clamping plate to contact the spar.

[0015] In the above-mentioned aircraft wing beam precision processing device, a locking assembly is provided on the movable block, and at the beginning of the travel of the driving block against the movable block, the locking assembly locks the driving block and the movable block.

[0016] In the above technical scheme, the present invention provides an aircraft wing spar precision processing device, which can convey the wing spar in a horizontal state through a conveying roller until the wing spar is conveyed to the position of the support frame. The first stroke of the driving mechanism can drive the clamping plate to clamp and fix the wing spar, and then the second stroke of the driving mechanism can drive the support frame and the wing spar to flip synchronously, so that the wing spar is flipped from a horizontal state to an upright state, thereby facilitating the transportation of the wing spar and flipping the wing spar to an upright state to undergo subsequent processing and testing procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of a reverse surface processing structure provided by an embodiment of the present invention; Figure 3 A side view provided for an embodiment of the present invention; Figure 4 A schematic diagram of a movable rod structure provided in yet another embodiment of the present invention; Figure 5 A schematic diagram of the structure of a wing spar in an erected state provided by yet another embodiment of the present invention; Figure 6 A schematic diagram of the structure of a support plate in an upright state provided by yet another embodiment of the present invention; Figure 7 A schematic diagram of the structure of a driving block provided by another embodiment of the present invention; Figure 8 Another embodiment of the present invention provides Figure 7 The enlarged structural diagram at A in the middle; Fig. 9 A schematic diagram of a wedge-shaped groove structure provided in another embodiment of the present invention; Fig.10 A schematic diagram of a locking structure of a drive block and a movable block provided in another embodiment of the present invention.

[0019] Description of reference numerals: 1. Workbench; 101. Wing beam; 102. Support part; 2. Support frame; 3. Clamp; 4. Conveying roller; 5. Movable block; 6. Movable rod; 7. Fitting groove; 8. Baffle; 9. Adapter groove; 10. Gear; 11. Rack; 12. Protrusion; 13. Elastic member; 14. Connecting block; 15. Driving block; 16. Latch; 17. Avoidance spring; 18. Wedge groove; 19. Extension part; 20. Socket. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figure 1-10 An embodiment of the present invention provides an aircraft wing spar precision machining device, including a workbench 1, on which a support frame 2 and a driving mechanism are arranged, the support frame 2 is rotatably connected to the workbench 1, and a clamping plate 3 for clamping the spar 101 is arranged on the support frame 2; the driving mechanism has a first stroke for driving the clamping plate 3 to approach the spar 101 and a second stroke for driving the support frame 2 to rotate.

[0022] Specifically, a conveying roller 4 is generally provided on the workbench 1 to convey the wing beam 101. A power source can be provided on the workbench 1 to drive the conveying roller 4 to rotate, thereby conveying the horizontal wing beam 101 to a suitable position (support frame 2) on the workbench 1. The above are all prior arts and will not be elaborated here. The innovation of the embodiment of the present invention is that a support frame 2 is provided on the workbench 1, and a plurality of extension structures are constructed on the support frame 2. The plurality of extension structures and the plurality of conveying rollers 4 on the workbench 1 are staggered to avoid interference between the support frame 2 and the conveying rollers 4 as much as possible, so as to facilitate the conveyance of the horizontal wing beam 101; multiple groups of splints 3 are provided on the support frame 2, and a group of splints 3 includes two symmetrically arranged splints 3, and the two splints 3 are located on the same extension structure of the support frame 2, and the two splints 3 are respectively located on both sides of the wing beam 101, so as to clamp and fix the wing beam 101 when the two splints 3 are close to each other; the driving mechanism can select a straight The linear drive structure is a combination of a linear drive structure and a rotating structure. The linear drive structure can use a cylinder or a hydraulic rod in the prior art, which is arranged on the support plate and can drive the clamping plate 3 to move on the support plate, thereby driving the clamping plate 3 to approach or move away from the wing beam 101, and then clamping and fixing the wing beam 101 or releasing the clamping and fixing of the wing beam 101; the rotating structure can use a motor structure in the prior art, which is arranged on the workbench 1 to drive the support frame 2 to rotate on the workbench 1, thereby driving the wing beam 101 to flip 90 degrees on the workbench 1, so as to flip the wing beam 101 in a horizontal state on the conveying roller shaft 4 to an upright state, so as to facilitate subsequent processing or detection procedures. The advantage of such a configuration is that the wing beam 101 in a horizontal state can be conveyed by the conveying roller 4 until the wing beam 101 is conveyed to the position of the support frame 2. The first stroke of the driving mechanism can drive the clamping plate 3 to clamp and fix the wing beam 101, and then the second stroke of the driving mechanism can drive the support frame 2 and the wing beam 101 to flip synchronously, so that the wing beam 101 is flipped from a horizontal state to an upright state, thereby facilitating the transportation of the wing beam 101 and flipping the wing beam 101 to an upright state to undergo subsequent processing and testing procedures.

[0023] like Figure 2-3As shown, in this embodiment, the support frame 2 is flipped 90 degrees to allow the spar 101 to rotate to an upright state to be processed or tested. Optionally, a support portion 102 is configured on one side of the workbench 1. After the clamping plate 3 clamps the spar 101, the support frame 2 is flipped 180 degrees to drive the spar 101 to flip onto the support portion 102, so that the reverse side of the spar 101 can be exposed for processing, and the support frame 2 can force the spar 101 to fit closely with the support portion 102, so as to cooperate with the clamping plate 3 to limit the spar 101 to the support portion 102, which is convenient. The reverse side of the spar 101 is processed or inspected; after the reverse side of the spar 101 is processed, the support frame 2 can drive the spar 101 to return to the conveying roller 4 of the workbench 1, so that the spar 101 can maintain a horizontal state and continue to be conveyed; optionally, an additional conveying roller 4 (not shown) can be provided on the support portion 102, and after the reverse side of the spar 101 is processed, the clamping plate 3 is directly driven away from the spar 101 to release the clamping fixation of the spar 101, so that the spar 101 can be conveyed on the conveying roller 4 on the support portion 102.

[0024] In another embodiment provided by the present invention, as an alternative solution for driving the support frame 2 to flip through the motor structure, the driving mechanism further includes a movable block 5 slidably connected to the workbench 1, and a movable rod 6 is hinged on the movable block 5, and the other end of the movable rod 6 is hinged to the support frame 2. Specifically, an interlocking groove 7 is constructed on the workbench 1, and the interlocking groove 7 is adapted to the support frame 2. A baffle 8 is constructed on the inner wall of the interlocking groove 7. When the support frame 2 is rotated to a horizontal state, it can be embedded in the interlocking groove 7 and overlapped on the baffle 8; the end of one side of the support frame 2 is rotatably connected to the inner wall of the interlocking groove 7, so that the other end of the support frame 2 can drive the wing beam 101 to flip to the top of the workbench 1 when rotating, so as to increase the height of the wing beam 101 as much as possible, so as to facilitate processing or testing; the movable block 5 is slidably connected to the bottom wall of the interlocking groove 7, and an adapting groove 9 is constructed on the support frame 2 (an adapting groove 9 is formed between two adjacent extension structures on the support frame 2). The supporting frame 2 is equipped with an adapter groove 9. When the supporting frame 2 rotates to a horizontal state, the conveying roller shaft 4 on the workbench 1 is located in an adapter groove 9). The two ends of the movable rod 6 are respectively hinged with the movable block 5 and the supporting frame 2 (the inner wall of the adapter groove 9 or the outer wall of the extended structure). When the movable block 5 approaches the hinge point of the supporting frame 2 and the workbench 1 along the interlocking groove 7, the movable rod 6 can contact the supporting frame 2 and drive the supporting frame 2 to flip, so that the supporting frame 2 drives the wing beam 101 to rotate 90 degrees to an upright state; conversely, when the movable block 5 moves in the opposite direction, it can drive the supporting frame 2 and the wing beam 101 to flip to a horizontal state to continue to transport the wing beam 101. The advantage of such a setting is that, in this embodiment, a linear drive structure is set on the workbench 1 to drive the movable block 5 to move along the interlocking groove 7 to drive the supporting frame 2 to flip (flip 90 degrees). Compared with direct motor drive, this driving method is more stable and can avoid the position displacement of the supporting frame 2 and the wing beam 101 thereon as much as possible.

[0025] As an alternative to the above-mentioned method of driving the clamping plate 3 to approach the wing beam 101 through the linear drive structure, preferably, the support frame 2 is rotatably connected with a gear 10, and the support frame 2 is slidably connected with two racks 11, the two racks 11 are located on both sides of the gear 10 and are both meshed with the gear 10, and the ends of the two racks 11 that are away from each other are respectively fixed to the two clamping plates 3. Specifically, a group of clamping plates 3 on the support frame 2 is located between two adjacent conveying roller shafts 4, and two clamping plates 3 in a group of clamping plates 3 are respectively located on both sides of the support frame 2, so that the conveying roller shaft 4 can convey the wing beam 101 to between the two clamping plates 3; the gear 10 is rotatably connected to the inner wall of the adapter groove 9, and two protrusions 12 are constructed on the inner wall of the adapter groove 9, and the two protrusions 12 are respectively located on the upper and lower sides of the gear 10, and the two racks 11 (the parts without teeth) are respectively slidably connected in the two protrusions 12, and the racks 11 are away from the support frame 2. One end of the center is fixed to a clamping plate 3; the advantage of such a configuration is that when the gear 10 rotates, it can drive the two racks 11 to slide relative to each other along the corresponding protrusions 12, thereby driving the two clamping plates 3 to move closer to or away from each other; compared with the above-mentioned solution of driving a clamping plate 3 by a linear drive structure, in this embodiment, the two clamping plates 3 can be driven to move synchronously and in opposite directions by driving the gear 10 to rotate by a rotating structure or by driving a rack 11 to move by a linear drive structure, thereby clamping and fixing both sides of the wing beam 101 at the same time.

[0026] Furthermore, the driving mechanism further comprises an elastic member 13, a first end of the elastic member 13 is hinged to a rack 11, and a second end is movably disposed on the support frame 2. The first stroke comprises a forward stroke in which the second end of the elastic member 13 is driven away from the first end to drive the clamping plate 3 to abut against the spar 101, and a reverse stroke in which the first end of the elastic member 13 is driven away from the second end to drive the clamping plate 3 away from the spar 101. Specifically, the elastic member 13 may adopt a tension spring structure in the prior art, a first end of which is hinged on the rack 11 below, and a second end is movably set on the support frame 2 (the movable setting method may be a sliding setting method); with such a setting, the rack 11 below can be driven by the tension spring to approach the hinge point between the support frame 2 and the workbench 1, thereby driving the right-hand clamp 3 to approach the wing beam 101, and at the same time, the gear 10 and the other rack 11 can also drive the left-hand clamp 3 to approach the wing beam 101 synchronously, thereby driving the two clamps 3 to approach the wing beam 101 synchronously through the elastic member 13 to elastically clamp the wing beam 101; in the above embodiment, the clamp 3 can be driven to approach the wing beam 101 through the first stroke of the driving mechanism. In this embodiment, the driving mechanism can adopt a combination of a resistance structure and an elastic member 13, and the resistance structure can be used to hold the end of the elastic member 13. The elastic member 13 is forced to contact with the second end of the elastic member 13, or the second end of the elastic member 13 is forced to contact with the first end of the elastic member 13. In this embodiment, when the second end is forced to contact with the second end of the elastic member 13 by the contact structure (that is, the contact structure forces the second end of the elastic member 13 to move on the support frame 2), the elastic member 13 is stretched, thereby increasing the pulling force of the elastic member 13 on the lower rack 11, thereby increasing the clamping force of the splint 3 on the wing beam 101, and trying to avoid the wing beam 101 from tipping over when the wing beam 101 is turned over; on the contrary, when the first end is forced to contact with the second end by the contact structure, the lower rack 11 and the corresponding splint 3 move in the opposite direction to move away from the wing beam 101, thereby driving the other splint 3 to synchronously move away from the wing beam 101 through the gear 10 and the other rack 11, so that a certain distance is maintained between the two splints 3, which is convenient for conveying the wing beam 101 to the support frame 2 through the conveying roller 4. The advantage is that the first stroke of the driving mechanism is decomposed into a forward stroke and a reverse stroke. The forward stroke can drive the two clamps 3 to approach the spar 101 synchronously to adapt to the elastic clamping of the spar 101, and the reverse stroke can force the two clamps 3 to move away from the spar 101 synchronously to adapt to the transportation of the spar 101.

[0027] In another embodiment provided by the present invention, as an alternative to the above-mentioned interference structure, the driving mechanism further includes a connecting block 14 fixed on a rack 11, and a driving block 15 is slidably connected to the workbench 1. The second end of the elastic member 13 is hinged to the movable rod 6, and the driving block 15 is located between the movable block 5 and the connecting block 14. Specifically, the driving block 15 and the movable block 5 are adapted, and both are slidably connected to the bottom wall of the interlocking groove 7, so that the driving block 15 can resist the movable block 5 when moving along the bottom wall of the interlocking groove 7; the connecting block 14 is fixed to the bottom of the lower rack 11 and extends to the moving stroke of the driving block 15. When the driving block 15 moves away from the movable block 5 along the interlocking groove 7, it can resist the connecting block 14 to force the corresponding clamping plate 3 to move away from the wing beam 101, thereby driving the two clamping plates 3 to move away from the wing beam 101 synchronously; in this embodiment, the first end of the elastic member 13 is hinged to the rack 11 below, and the second end is hinged to the movable rod 6 (that is, the second end of the elastic member 13 is movably arranged on the support frame 2 through the movable rod 6); in this embodiment, a linear driving structure can be set on the workbench 1 to drive the driving block 15 to move along the interlocking groove 7. The linear driving structure can select a cylinder or a screw structure in the prior art, which is not shown in the figure and will not be repeated here.

[0028] With such arrangement, when the driving block 15 moves between the movable block 5 and the connecting block 14, the elastic member 13 drives the clamping plate 3 to contact the spar 101. When the driving block 15 moves toward the connecting block 14, the connecting block 14 drives the clamping plate 3 away from the spar 101, and the elastic member 13 is stretched at this time; when the driving block 15 moves toward the movable block 5, the movable block 5 drives the support frame 2 to flip, and the elastic member 13 continues to stretch to further force the clamping plate 3 to contact the spar 101. Specifically, when the driving block 15 moves between the movable block 5 and the connecting block 14, the support frame 2 is rotated into the engaging groove 7 under the action of gravity and is placed on the baffle 8. At this time, the positions of the movable rod 6 and the movable block 5 are in a specific position due to the gravity of the support frame 2, so that the second end of the elastic member 13 is in a specific position. At this time, the elastic member 13 forces the first end to approach the second end through its own elastic force, thereby driving the clamping plate 3 to approach the spar 101 to elastically clamp the spar 101; when the driving block 15 moves away from the movable block 5 and contacts the connecting block 14, the connecting block 14 and the corresponding clamping plate 3 can be driven away from the spar 101 by the driving block 15. At this time, the elastic member 13 is further stretched until the two clamping plates 3 are away from the spar 101 by a certain distance, and the driving block 15 stops moving and maintains the contact with the connecting block 14. At this time, the clamping of the spar 101 can be released or the conveying roller 4 can be used to The wing beam 101 is transported horizontally to the support frame 2; when the wing beam 101 moves to the top of the support frame 2, the driving block 15 is reset to between the movable block 5 and the connecting block 14, so that the clamping plate 3 can elastically clamp the wing beam 101 again under the action of the elastic member 13; then the driving block 15 moves away from the connecting block 14 and contacts the movable block 5, so as to force the movable block 5 to approach the hinge point between the support frame 2 and the workbench 1, thereby driving the support frame 2 to flip. During the process, the angle between the movable rod 6 and the support frame 2 (the rack 11 below) becomes larger, so that the elastic member 13 is further stretched until the support frame 2 flips 90 degrees to an upright state. The elastic member 13 is stretched to a greater extent, so as to force the clamping plate 3 to clamp and fix the wing beam 101 through a larger elastic force, thereby forcing the wing beam 101 to remain in an upright state, and trying to avoid the position of the wing beam 101 from being offset and affecting the subsequent processing or detection process.

[0029] The advantage is that by driving the driving block 15 to move in the engaging groove 7, the movable block 5 or the connecting block 14 can be resisted to force the two clamps 3 to move away from the wing beam 101 synchronously, or the two clamps 3 can clamp the wing beam 101 under the action of the elastic member 13, or the support frame 2 is forced to flip over and further increase the force of the two clamps 3 on the wing beam 101, thereby adapting to the operation of the clamps 3 and the flipping of the support frame 2.

[0030] It should be noted that a plurality of groups of clamping plates 3 and movable blocks 5 structures are provided on the support frame 2 along its length direction. The synchronous operation of the plurality of driving blocks 15 can drive the plurality of groups of clamping plates 3 to operate synchronously so as to clamp different positions of the wing beam 101. The width of the wing beam 101 close to one end of the fuselage is greater than that of the other end. In the present embodiment, the clamping plates 3 have a certain elastic clamping range, which can adapt to clamp and fix different positions of the wing beam 101. Preferably, a plurality of elastic members 13 can be provided between the movable rod 6 and the corresponding rack 11. During the flipping process of the support frame 2, the plurality of elastic members 13 operate adaptively to increase the clamping force of the two clamping plates 3 on the wing beam 101, thereby stably clamping and fixing the wing beam 101 through the plurality of groups of elastic members 13 on the support frame 2, thereby reducing the influence of the gravity of the wing beam 101 on the clamping structure.

[0031] In another embodiment provided by the present invention, further, a locking assembly is provided on the movable block 5, and at the beginning of the travel of the driving block 15 against the movable block 5, the locking assembly locks the driving block 15 and the movable block 5. The locking assembly includes a latch 16 slidably connected to the movable block 5, and a avoidance spring 17 is sleeved on the latch 16, one end of the avoidance spring 17 is fixed to the outer wall of the latch 16, and the other end is fixed to the movable block 5, so that the latch 16 is forced to stay away from the support frame 2 through the avoidance spring 17; a wedge-shaped groove 18 is constructed on the bottom wall of the fitting groove 7, the wedge-shaped groove 18 is smoothly connected to the bottom wall of the fitting groove 7, and the width of the wedge-shaped groove 18 is smaller than the width of the driving block 15, so that the driving block 15 can directly cross the wedge-shaped groove 18 when moving along the fitting groove 7 without being affected by the wedge-shaped groove 18, and an extension portion 19 is constructed on the side of the driving block 15 close to the movable block 5, and a socket 20 is constructed on the extension portion 19. When the support frame 2 is about to rotate to a horizontal state, the movable block 5 drives the latch 16 to move to the wedge-shaped groove 18, and the latch 16 gradually enters the wedge-shaped groove 18 under the action of the avoidance spring 17, until the support frame 2 rotates to a horizontal state, the latch 16 moves to the bottom of the wedge-shaped groove 18 and the height of the latch 16 is lower than the height of the extension 19. At this time, the driving block 15 can contact the outer wall of the movable block 5 through the extension 19 to force the movable block 5 away from the connecting block 14. In the process, the latch 16 can overcome the avoidance spring 17 by contacting the bottom wall of the wedge-shaped groove 18. The elastic force of the latch 16 moves upward, thereby forcing the latch 16 to be inserted into the socket 20, so that the movable block 5 and the driving block 15 can be kept in a locked state during the subsequent movement, which is convenient for the subsequent pulling of the movable block 5 by the driving block 15 to reset the supporting frame 2 to the horizontal state; on the contrary, when the latch 16 moves to the position of the wedge-shaped groove 18 again, the avoidance spring 17 forces the latch 16 to enter the wedge-shaped groove 18 again, so that the latch 16 moves out of the socket 20, thereby releasing the lock of the driving block 15 and the movable block 5, so that the driving block 15 can be away from the movable block 5. The advantage of such a configuration is that, at the beginning of the travel of the driving block 15 against the movable block 5, the wedge-shaped groove 18 can force the latch 16 to be inserted into the socket 20 to lock the movable block 5 and the driving block 15, making it convenient to drive the movable block 5 through the driving block 15; conversely, when the latch 16 moves to the position of the wedge-shaped groove 18 again, the avoidance spring 17 can force the latch 16 to be moved out of the socket 20 and inserted into the avoidance groove to release the lock on the movable block 5 and the driving block 15.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aircraft wing spar precision machining device, comprising a workbench, characterized in that: The workbench is provided with: A support frame, which is rotatably connected to the workbench, and the support frame is provided with a clamping plate for clamping the wing spar; The driving mechanism has a first stroke for driving the clamping plate to approach the wing beam and a second stroke for driving the support frame to rotate.

2. The device for precision machining of an aircraft wing spar according to claim 1, characterized in that: The driving mechanism comprises a movable block which is slidably connected to the workbench, a movable rod is hinged on the movable block, and the other end of the movable rod is hinged to the supporting frame.

3. The device for precision machining of an aircraft wing spar according to claim 2, characterized in that: The support frame is rotatably connected with a gear, and the support frame is slidably connected with two racks, the two racks are located on both sides of the gear and are meshed with the gear, and the ends of the two racks that are away from each other are respectively fixed to two clamping plates.

4. The device for precision machining of an aircraft wing spar according to claim 3, characterized in that: The driving mechanism also includes an elastic member, a first end of which is hinged to a rack, and a second end of which is movably arranged on the support frame.

5. The device for precision machining of aircraft wing beams according to claim 4, characterized in that: The first stroke includes a forward stroke for driving the second end of the elastic member away from the first end to drive the clamping plate to abut against the spar and a reverse stroke for driving the first end of the elastic member away from the second end to drive the clamping plate away from the spar.

6. The aircraft wing spar precision machining device according to claim 5, characterized in that: The driving mechanism also includes a connecting block fixed on a rack, and the working table is slidably connected with the driving block.

7. The aircraft wing spar precision machining device according to claim 6, characterized in that: The second end of the elastic member is hinged to the movable rod, and the driving block is located between the movable block and the connecting block.

8. The device for precision machining of an aircraft wing spar according to claim 7, characterized in that: When the driving block moves between the movable block and the connecting block, the elastic member drives the clamping plate to contact the wing beam.

9. The aircraft wing spar precision machining device according to claim 8, characterized in that: When the driving block moves toward the connecting block, the connecting block drives the clamping plate away from the wing beam, and the elastic member is stretched at this time; when the driving block moves toward the movable block, the movable block drives the supporting frame to flip, and the elastic member continues to stretch to force the clamping plate to contact the wing beam.

10. The aircraft wing spar precision machining device according to claim 9, characterized in that: The movable block is provided with a locking assembly, and at the beginning of the travel of the driving block against the movable block, the locking assembly locks the driving block and the movable block.

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