Five-axis machining machine tool special for titanium alloy flap sliding rail

Abstract

The invention relates to a five-axis machining tool special for a titanium alloy flap sliding rail, and belongs to the technical field of machine tools, the five-axis machining tool comprises a base, a Y-direction sliding seat and a Z-direction sliding seat, stand columns are connected to the two sides of the base, all the stand columns are jointly connected with a cross beam, a first movable through groove is formed in the cross beam in the length direction of the cross beam, and the first movable through groove penetrates to the top and the bottom of the cross beam; the Y-direction sliding seat is connected into the first movable through groove in a sliding mode, and a first servo driving unit is arranged on the cross beam; the Y-direction sliding seat is provided with a second movable through groove in the height direction, the second movable through groove penetrates to the top and the bottom of the Y-direction sliding seat, the Z-direction sliding seat is connected into the second movable through groove in a sliding mode, the Y-direction sliding seat is provided with a second servo driving unit, and the Z-direction sliding seat is provided with a five-axis head. A third servo driving unit is arranged on the base, and a titanium alloy flap sliding rail workpiece is fixed to the workbench. The machining method has the advantages that when the titanium alloy flap sliding rail is machined, the cutter shaking phenomenon can be reduced, and the machining quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of machine tools, and in particular to a five-axis machining machine tool specifically designed for titanium alloy flap slide rails. Background Art

[0002] In modern aviation manufacturing, titanium alloys are widely used in the machining of aircraft structural parts due to their excellent mechanical properties, particularly critical components such as flap rails. While titanium alloy flap rails offer advantages such as high strength, hardness, and toughness, they also have relatively low density and light weight, making them susceptible to movement, vibration, and even shaking during machining. This can easily lead to micro-vibrations between the tool and the workpiece, a phenomenon known as tool chatter.

[0003] Furthermore, traditional five-axis machining centers are often not fully optimized for the machining characteristics of titanium alloys when machining high-strength and high-hardness materials. Consequently, excessive vibration, known as tool chatter, can occur when machining titanium alloys. This can not only affect the workpiece surface quality but also accelerate tool wear. In severe cases, it can even affect machining accuracy and lead to part failure. Summary of the Invention

[0004] In order to reduce the tool chattering phenomenon and improve the processing quality when processing titanium alloy flap slide rails, the present application provides a five-axis processing machine tool dedicated to titanium alloy flap slide rails.

[0005] The present application provides a five-axis machining machine tool for titanium alloy flap slide rails, which adopts the following technical solutions: A five-axis machining center for titanium alloy flap slides, comprising a base, a Y-axis slide, and a Z-axis slide. The base is connected to columns on both sides, and all the columns are connected to a crossbeam. The crossbeam has a first movable through-slot along its length, and the first movable through-slot extends to the top and bottom of the crossbeam. The Y-axis slide is slidably connected in the first movable through-slot, and the crossbeam is provided with a first servo drive unit for driving the Y-axis slide to move along the Y-axis. The Y-axis slide is provided with a second movable through-slot along the height direction, the second movable through-slot extending to the top and bottom of the Y-axis slide, the Z-axis slide is slidably connected in the second movable through-slot, the Y-axis slide is provided with a second servo drive unit for driving the Z-axis slide to move along the Z-axis direction, and the Z-axis slide is installed with a five-axis head; A third servo drive unit is provided on the base, and the third servo drive unit is connected to a workbench and drives it to move along the X-axis direction. The titanium alloy flap slide rail workpiece is fixed on the workbench.

[0006] By adopting the above technical solution, the crossbeam, Y-axis slide, and Z-axis slide of the machine tool form a box-within-a-box structure. This design is symmetrical and has good rigidity, which enables the machine tool to maintain high stability during processing and effectively reduces the tool chatter caused by vibration. Secondly, the columns, beams, and base form a stable frame structure. This frame structure enhances the overall rigidity and stability. When processing high-strength titanium alloy materials, it can effectively reduce the shaking caused by the high rigidity of the workpiece and further reduce the tool chattering phenomenon. The machine also utilizes an independent third servo drive unit, which drives the worktable along the X-axis through the base. This differs from traditional gantry-type machining centers, as it eliminates the need to simultaneously drive the Y- and Z-slides and the five-axis head. Because the third servo drive unit drives only the worktable, movement speed is increased, precision is enhanced, and the crossbeam remains unaffected by movement during machining, maintaining high static and dynamic rigidity. This improves overall machine stability, reduces tool chatter, and allows for increased tool movement speed, contributing to improved machining efficiency. Furthermore, the titanium alloy flap rail workpiece is fixed to a heavier workbench, forming a single unit with the workbench. During machining, the weight of the workbench prevents the workpiece from shaking, further reducing tool chatter and improving machining accuracy and quality.

[0007] Optionally, the workbench and the lead screw of the third servo drive unit are both centrally arranged on the base, and the base is slidably connected to both sides of the bottom of the workbench through a first symmetrical guide rail mechanism.

[0008] By adopting this technical solution, the central placement of the worktable and the leadscrew of the third servo drive unit, combined with the first symmetrical guide rail mechanism, ensures more even force distribution during movement, preventing tilting or twisting of the worktable due to uneven loading during machining. This symmetrical design improves overall force balance, reduces vibration, and thus minimizes tool chatter.

[0009] Optionally, the Y-axis slide is T-shaped, and the crossbeam is slidably connected to the top and bottom sides of the Y-axis slide via a second symmetrical guide rail mechanism.

[0010] By adopting this technical solution, the second symmetrical guide mechanism is distributed on both the top and bottom sides of the Y-axis slide, forming a more stable support structure. The simultaneous application of force on both sides effectively disperses the load on the slide during movement, reducing distortion or deflection caused by force acting on a single plane. This dual support significantly enhances the overall rigidity of the system, reduces vibration caused by workpiece movement, and effectively reduces tool chatter. Furthermore, the T-shaped cross-section structure inherently possesses excellent bending rigidity and torsional resistance, further enhancing the stability and bending resistance of the entire Y-axis moving box.

[0011] Optionally, the Z-axis slide is a rectangular body, the number of the second servo drive units is plural and they are symmetrically arranged about the vertical center axis of the Z-axis slide, the Y-axis slide is provided with a support cylinder, the support cylinder supports the Z-axis slide, the number of the support cylinders is plural and they are symmetrically arranged about the vertical center axis of the Z-axis slide, and the Y-axis slide is slidably connected to the Z-axis slide through a third symmetrical guide rail mechanism.

[0012] By adopting this technical solution, the symmetrical arrangement of multiple second servo drive units not only provides greater driving force, ensuring stable movement of the Z-axis slide, but also improves motion precision. The symmetrical distribution of the second servo units ensures smoother movement of the Z-axis slide, avoiding errors and oscillations caused by unilateral drive, thereby improving overall machining accuracy.

[0013] The support cylinder can provide additional support force to reduce the mechanical stress between the Z-axis slide and the second servo drive unit. The symmetrical design of the support cylinder and the second servo drive unit improves the balance and stability of the Z-axis slide and reduces vibration or tool chattering caused by imbalance during machining.

[0014] Optionally, chip collecting grooves are opened on both sides of the top of the base along the X-axis direction, and the base is rotatably connected to a conveying screw, the conveying screw is located in the chip collecting groove, and the conveying screw is used to discharge waste chips from the base, and the conveying screw is driven by a motor; An inspection opening is provided on the Z-direction slide, and a sealing plate for blocking the inspection opening is bolted to the Z-direction slide.

[0015] By adopting this technical solution, chip collection grooves are installed on both sides of the base along the X-axis, providing a centralized channel for collecting and discharging chips generated during processing. The conveying screw design can automatically convey and discharge the chips out of the base. The inspection port allows operators to easily inspect and repair internal components when the equipment requires maintenance or overhaul.

[0016] After the inspection is completed, the sealing plate closes the inspection port, making the structure of the Z-axis slide tighter, which is beneficial to improving the rigidity of the Z-axis slide and thus helps to reduce the tool chattering phenomenon.

[0017] Optionally, the column is provided with a working window, a blocking block for blocking the working window is provided on the column, a transverse movement component is provided on the column, the transverse movement component is connected to a flip component, the flip component is connected to the blocking block, a tightening component is provided in the blocking block, and a support seat is installed at the bottom of the column; The transverse movement assembly is located in the working window, and is used to drive the flip assembly and the blocking block to move along the Y-axis direction, and enable the blocking block to extend out of the working window; The flip assembly is used to drive the blocking block to flip and rest on the support seat; When the blocking block is located in the working window, the pressing assembly can press against the column.

[0018] By adopting the above technical solution and designing a working window on the column, when auxiliary equipment (such as a milling cutter replacement assembly) needs to be installed, the cooperation of the traverse assembly and the flip assembly allows the block to be flexibly removed, reserving sufficient space for the auxiliary equipment. At the same time, the block and support base cooperate to provide a stable installation platform for the auxiliary equipment, and the design of the support base increases the support area of the column. Even if the opening of the working window reduces the rigidity of the column to a certain extent, the increased support area effectively compensates for the lack of rigidity of the column, maintains the overall stability of the machine tool, and reduces the chattering phenomenon that may be caused by structural instability.

[0019] When auxiliary equipment is no longer needed, the blocking block can be re-sealed using the traverse and flip assemblies. At this point, the tightening assembly presses the blocking block against the inner wall of the column, restoring the column's integrity and significantly increasing its rigidity, further reducing vibrations that may occur during machining and minimizing tool chatter.

[0020] Optionally, the transverse movement assembly includes a first hydraulic cylinder, which is installed on the inner wall of the working window. There are two first hydraulic cylinders and they are arranged opposite to each other. The first hydraulic cylinder is connected to a movable plate, and the movable plate is slidably arranged in the working window.

[0021] By adopting the above technical solution, the symmetrical arrangement of the two first hydraulic cylinders achieves smooth lateral movement of the blocking block. The first hydraulic cylinder drives the movable plate to slide, ensuring that the thick blocking block can be quickly separated from the working window and has sufficient space for rotation.

[0022] Optionally, the flip assembly includes a first connecting seat, a second connecting seat and a flip cylinder, the first connecting seat is mounted on the blocking block, the second connecting seat is mounted on the transverse movement assembly, the first connecting seat is hinged with a first connecting rod and a second connecting rod, the second connecting seat is hinged with a third connecting rod and a fourth connecting rod, the third connecting rod is Z-shaped, the third connecting rod is located between the first connecting seat and the fourth connecting rod, the third connecting rod is hinged with the first connecting rod and the second connecting rod, the second connecting rod is farther away from the second connecting seat than the first connecting rod, the first connecting rod is hinged with the fourth connecting rod, the first connecting rod and the second connecting rod are parallel to each other, the piston rod of the flip cylinder is hinged to an end of the third connecting rod away from the second connecting seat, and the cylinder body of the flip cylinder is hinged to the transverse movement assembly; When the blocking block is in a state of sealing the working window, the hinge between the flip cylinder and the third connecting rod is farther away from the blocking block than the hinge between the third connecting rod and the second connecting seat, and the hinge between the flip cylinder and the third connecting rod is closer to the blocking block than the hinge between the fourth connecting rod and the second connecting seat.

[0023] By adopting the above technical solution, under the cooperation of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod, the turning cylinder drives the blocking block to turn to a horizontal state and rest on the support seat.

[0024] Optionally, the clamping assembly includes a driving member and a plurality of clamping rods, and the driving member and the clamping rods are both arranged in the blocking block, and the driving member is used to drive the plurality of clamping rods to extend out of the blocking block and simultaneously clamp the inner wall of the working window.

[0025] By adopting the above technical solution, the driving member drives multiple tightening rods to tighten against the inner wall of the working window. This multi-point support method can evenly distribute the stress on the blocking block, avoiding local stress concentration or deformation problems caused by single-point force.

[0026] Optionally, the clamping assembly includes a rotating disk, which is rotatably connected to the blocking block, and several of the clamping rods are slidably arranged in the blocking block, and several of the clamping rods are arranged circumferentially along the rotating disk, each of the clamping rods is connected to a guide column, and the rotating disk is provided with several arc-shaped guide grooves along its circumference, and the guide columns correspond to the arc-shaped guide grooves one by one, and the guide columns are inserted into the corresponding arc-shaped guide grooves, and a second hydraulic cylinder for pushing the rotating disk to rotate is hinged in the blocking block.

[0027] By adopting the above technical solution, the second hydraulic cylinder drives the rotating disk to rotate, and under the guidance of the arc-shaped guide groove, the tightening rod extends out of the blocking block and presses against the inner wall of the working window.

[0028] In summary, this application includes at least one of the following beneficial technical effects: 1. The machine's crossbeam, Y-slide, and Z-slide form a box-in-box structure. This design offers symmetry and excellent rigidity, enabling the machine to maintain high stability during machining and effectively reducing tool chatter caused by vibration. 2. The columns, beams, and base form a stable frame structure. This frame structure enhances the overall rigidity and stability. When processing high-strength titanium alloy materials, it can effectively reduce the shaking caused by the high rigidity of the workpiece and further reduce the tool chattering phenomenon. 3. The machine tool utilizes an independent third servo drive unit, which drives the worktable along the X-axis through the base. This differs from traditional gantry-type machining centers, as it does not require simultaneous movement of the Y- and Z-slides and the five-axis head. Because the third servo drive unit drives only the worktable, movement speed is increased and precision is enhanced. Furthermore, the crossbeam remains unaffected by movement during machining, maintaining high static and dynamic rigidity. This improves overall machine tool stability, reduces tool chatter, and allows for increased tool movement speed, contributing to improved machining efficiency. 4. The titanium alloy flap rail workpiece is fixed to a heavy workbench, forming a single unit with the workbench. During machining, the workpiece is less likely to shake due to the weight of the workbench, further reducing tool chatter and improving machining accuracy and quality. 5. The central arrangement of the workbench and the lead screw of the third servo drive unit, the design of the first symmetrical guide rail mechanism, the second symmetrical guide rail mechanism, the third symmetrical guide rail mechanism, the symmetrical support cylinder, and the second servo drive unit improve the overall force balance and reduce vibration, thereby helping to reduce the occurrence of tool chatter. 6. When auxiliary equipment (such as milling cutter replacement components) needs to be installed, the cooperation of the traverse assembly and the flip assembly allows the blocking block to be flexibly removed, reserving sufficient space for the auxiliary equipment. At the same time, the blocking block and the support seat can provide a stable installation platform for the auxiliary equipment; 7. The design of the support seat increases the support area of the column. Even if the opening of the working window reduces the rigidity of the column to a certain extent, the increase in the support area effectively compensates for the problem of insufficient column rigidity, maintains the overall stability of the machine tool, and reduces the tool chattering phenomenon that may be caused by structural instability; 8. When auxiliary equipment is no longer needed, the blocking block can be re-sealed using the traverse and flip assemblies. At this point, the tightening assembly presses the blocking block against the inner wall of the column, restoring the column's integrity and significantly increasing its rigidity, further reducing vibrations that may occur during machining and minimizing tool chatter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2 It is a structural diagram of the third servo drive unit and the sealing plate according to Example 1 of the present application.

[0031] Figure 3 This is a structural diagram of Example 1 of the present application, which is used to embody the Y-type slide and the second symmetrical guide rail mechanism.

[0032] Figure 4 This is a structural diagram of the support seat, transverse movement assembly and flip assembly used in Example 2 of the present application.

[0033] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0034] Figure 6 It is a structural diagram of the embodiment of the present application used to reflect the tightening component.

[0035] Figure 7 It is a structural diagram of the embodiment of the present application used to reflect the clamping rod and the driving member.

[0036] Explanation of reference numerals: 1. base; 11. third servo drive unit; 12. first symmetrical guide rail mechanism; 13. chip collecting groove; 14. conveying screw; 2. workbench; 3. column; 31. working window; 32. blocking block; 33. support seat; 4. crossbeam; 41. first movable through groove; 42. second symmetrical guide rail mechanism; 5. Y-axis slide; 51. first servo drive unit; 52. second movable through groove; 53. support cylinder; 6. Z-axis slide; 61. third symmetrical guide rail mechanism; 62. first Second servo drive unit; 63. Five-axis head; 64. Inspection port; 65. Closing plate; 7. Transverse movement assembly; 71. First hydraulic cylinder; 72. Moving plate; 8. Flipping assembly; 81. First connecting seat; 82. Second connecting seat; 83. Flipping cylinder; 84. First connecting rod; 85. Second connecting rod; 86. Third connecting rod; 87. Fourth connecting rod; 9. Clamping assembly; 91. Driving member; 911. Rotating disk; 9111. Arc guide groove; 912. Guide column; 913. Second hydraulic cylinder; 92. Clamping rod. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 This application is described in further detail.

[0038] Example 1 Example 1 of the present application discloses a five-axis machining machine tool specifically designed for titanium alloy flap slide rails.

[0039] like Figure 1 and Figure 2The five-axis machining center for titanium alloy flap slides includes a base 1, on which a third servo drive unit 11 and a first symmetrical guide rail mechanism 12 are centrally mounted. The first symmetrical guide rail mechanism 12 is arranged along the X-axis direction. The first symmetrical guide rail mechanism 12 is a double guide rail, and the two guide rails are symmetrically arranged about the third servo drive unit 11. The first symmetrical guide rail mechanism 12 is slidably connected to a worktable 2. The titanium alloy flap slide is fixed on the worktable 2, which is centrally placed on the base 1. The third servo drive unit 11 drives the worktable 2 to move along the X-axis direction. The top surface of the base 1 is provided with two chip collection grooves 13 along its length. The chip collection grooves 13 are symmetrically arranged about the center axis of the base 1 in the X-axis direction, and the two chip collection grooves 13 are respectively arranged adjacent to one side of the base 1. A conveying screw 14 is rotatably connected in the chip collection groove 13. The conveying screw 14 is arranged along the X-axis direction and is driven by a motor arranged at the end of the base 1.

[0040] A column 3 is connected to each side of the base 1, each of which has a working window 31 extending along the Y-axis. The two columns 3 jointly support a crossbeam 4. The columns 3, crossbeam 4, and base 1 are all designed to be widened, meaning their dimensions are 10%-30% larger than those of corresponding components used in conventional titanium alloy flap slide rail machining.

[0041] The crossbeam 4 is provided with a first movable through slot 41 along its length direction (Y-axis direction), and the first movable through slot 41 passes through the top and bottom surfaces of the crossbeam 4, and the crossbeam 4 is installed with a second symmetrical guide rail mechanism 42 in the first movable through slot 41, and the second symmetrical guide rail mechanism 42 is arranged along the Y-axis direction, and the second symmetrical guide rail mechanism 42 is slidably connected to the Y-direction slide 5.

[0042] like Figure 1 and Figure 3 The Y-axis slide 5 has a T-shaped longitudinal cross-section. The second symmetrical guide rail mechanism 42 comprises four guide rails. Two of the guide rails are positioned adjacent to the bottom of the crossbeam 4 and face each other, while the other two guide rails are positioned adjacent to the top of the crossbeam 4 and face each other. The two flanges of the Y-axis slide 5 (i.e., the top and sides of the Y-axis slide 5) are each slidably connected to a guide rail, while the bottom and sides of the Y-axis slide 5 are each slidably connected to a guide rail. A first servo drive unit 51 is mounted on the crossbeam 4 and is located within the first movable through-slot 41.

[0043] The Y-axis slide 5 is provided with a second movable through groove 52 along its height direction (Z-axis direction). The second movable through groove 52 passes through the top and bottom surfaces of the Y-axis slide 5. The second movable through groove 52 is a rectangular through groove. Two support cylinders 53 are installed on the top of the Y-axis slide 5. The two support cylinders 53 are arranged along the X-axis direction and are symmetrically arranged about the central axis of the Y-axis direction of the Y-axis slide 5. The two support cylinders 53 jointly support the Z-axis slide 6.

[0044] The Z-direction slide 6 is a rectangular body, slidably connected to the Y-direction slide 5 via a third symmetrical guide rail mechanism 61. This third symmetrical guide rail mechanism 61 comprises four guide rails, each consisting of two guide rails. The two guide rails are mounted on either side of the Z-direction slide 6 in the Y-axis direction, with the two identical guide rails positioned adjacent to the respective sides of the Z-direction slide 6. The Z-direction slide 6 and the Y-direction slide 5 are both equipped with two second servo drive units 62, which are used to drive the Z-direction slide 6 along the Z-axis. The two second servo drive units 62 are arranged along the Y-axis and symmetrically about the Z-axis centerline of the Z-direction slide 6.

[0045] like Figure 3 A five-axis head 63 is mounted at the bottom of the Z-axis slide 6. A milling cutter is connected to the five-axis head 63. The five-axis head 63 controls the milling cutter to rotate along the A-axis and the C-axis. The Z-axis slide 6 has a built-in motor for controlling the five-axis head 63 to rotate along the C-axis. An inspection port 64 is provided on the side wall of the Z-axis slide 6. A cover plate 65 is bolted to the Z-axis slide 6 to seal the inspection port 64.

[0046] In the embodiment of the present application, the first servo drive unit 51, the second servo drive unit 62 and the third servo drive unit 11 are all motor, lead screw and nut seat structures; The motor of the first servo drive unit 51 is mounted at one end of the crossbeam 4. The lead screw of the second servo drive unit 62 is rotatably connected to the first movable through slot 41. The motor and the lead screw of the second servo drive unit 62 are connected via a synchronous pulley. The nut seat of the second servo drive unit 62 is mounted on one side of the Y-axis slide 5. The motor of the second servo drive unit 62 is installed on the top of the Z-direction slide 6, the nut seat of the second servo drive unit 62 is installed on the top of the Y-direction slide 5, and the lead screw of the second servo drive unit 62 extends into the second movable through slot 52; The motor of the third servo drive unit 11 is installed at the end of the base 1 , the lead screw of the third servo drive unit 11 is rotatably connected to the base 1 , and the nut seat of the third servo drive unit 11 is installed at the bottom of the workbench 2 .

[0047] The working principle of the embodiment of this application is as follows: the machine tool's crossbeam 4, Y-axis slide 5, and Z-axis slide 6 form a box-within-a-box structure. This design offers symmetry and excellent rigidity, ensuring high stability during machining. The columns 3, crossbeam 4, and base 1 form a stable frame structure. This frame structure enhances overall rigidity and stability, effectively reducing the wobble caused by the high rigidity of the workpiece when machining high-strength titanium alloy materials. The machine tool utilizes an independent third servo drive unit 11, which drives the worktable 2 along the X-axis through the base 1. Unlike traditional gantry-type machining centers, this eliminates the need to simultaneously drive the Y-axis slide 5, Z-axis slide 6, and five-axis head 63. Because the third servo drive unit 11 drives only the worktable 2, movement speed is increased and precision is enhanced. Furthermore, the crossbeam 4 is unaffected by movement during machining, maintaining high static and dynamic rigidity. The titanium alloy flap rail workpiece is fixed to the heavier worktable 2, forming a single unit with the worktable 2. During the processing, the workpiece is not easy to shake due to the weight of the workbench 2, thereby improving the processing stability as a whole, greatly reducing the tool chattering phenomenon when processing titanium alloy flap slides, and improving the processing quality.

[0048] Example 2 Reference Figure 4 、 Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that a transverse movement component 7 is installed in the working window 31 of the column 3, and the transverse movement component 7 is connected to two flip components 8. The two flip components 8 are respectively located on one side of the working window 31, and the two flip components 8 are connected to a blocking block 32. A support seat 33 is installed at the bottom of the column 3 away from the base 1, and a tightening component 9 is installed in the blocking block 32.

[0049] The transverse movement assembly 7 is used to drive the flip assembly 8 and the blocking block 32 to move along the Y-axis direction, and enable the blocking block 32 to extend out of the working window 31 .

[0050] After the blocking block 32 extends out of the working window 31 , the turning assembly 8 is used to drive the blocking block 32 to turn over and rest on the supporting seat 33 .

[0051] When the blocking block 32 is located in the working window 31 , the pressing component 9 can press against the inner wall of the working window 31 .

[0052] like Figure 5The traverse assembly 7 includes a first hydraulic cylinder 71 mounted on the inner wall of the working window 31 and positioned adjacent to the base 1. Two first hydraulic cylinders 71 are provided, each mounted on an inner wall of the working window 31 and positioned opposite each other. A movable plate 72 is connected to the first hydraulic cylinder 71 and positioned along the height of the working window 31. The movable plate 72 slides against the inner wall of the working window 31.

[0053] like Figure 5 The flip assembly 8 includes a first connecting seat 81, a second connecting seat 82, and a flip cylinder 83. The first connecting seat 81 is installed on the side of the blocking block 32 facing the base 1, and the first connecting seat 81 is located near the bottom of the blocking block 32. The second connecting seat 82 is installed on the movable plate 72, and the second connecting seat 82 is located near the bottom of the movable plate 72.

[0054] The first connecting seat 81 is hinged with a first link 84 and a second link 85, and the second connecting seat 82 is hinged with a third link 86 and a fourth link 87. The third link 86 is Z-shaped and is located between the first connecting seat 81 and the fourth link 87. The middle part of the third link 86 is hinged to the first link 84, and the end of the third link 86 away from the second connecting seat 82 is hinged to the second link 85. Compared with the first link 84, the second link 85 is away from the second connecting seat 82, and the end of the first link 84 away from the first connecting seat 81 is hinged to the fourth link 87. The first link 84 and the second link 85 are parallel to each other.

[0055] The cylinder body of the flip cylinder 83 is hinged to the movable plate 72. The cylinder body of the flip cylinder 83 is arranged near the top of the movable plate 72. The piston rod of the flip cylinder 83 is hinged to the end of the third connecting rod 86 away from the second connecting seat 82. When the blocking block 32 is in the state of sealing the working window 31, the tilting cylinder 83 is in a tilted state, tilting away from the base 1. In addition, the hinge between the tilting cylinder 83 and the third connecting rod 86 is farther away from the base 1 than the hinge between the fourth connecting rod 87 and the second connecting seat 82, and the hinge between the tilting cylinder 83 and the third connecting rod 86 is closer to the base 1 than the hinge between the third connecting rod 86 and the second connecting seat 82.

[0056] like Figure 6 and Figure 7 The tightening assembly 9 includes a driving member 91 and a plurality of tightening rods 92. The driving member 91 and the tightening rods 92 are both installed in the blocking block 32. The driving member 91 is used to drive the plurality of tightening rods 92 to extend out of the blocking block 32 and simultaneously tighten against the inner wall of the working window 31.

[0057] The driving member 91 includes a rotating disk 911, which is rotatably connected to the blocking block 32. A movable channel corresponding to the clamping rod 92 is opened in the blocking block 32. The movable channel passes through the circumference of the blocking block 32, and the clamping rod 92 is adapted to the size of the movable channel, and several clamping rods 92 are arranged circumferentially along the rotating disk 911. Each clamping rod 92 is connected to a guide column 912 at one end away from the circumference of the blocking block 32, and the rotating disk 911 is provided with a plurality of arc-shaped guide grooves 9111 along its circumference. The guide columns 912 correspond to the arc-shaped guide grooves 9111 one by one, and the guide columns 912 are inserted into the corresponding arc-shaped guide grooves 9111. A second hydraulic cylinder 913 for pushing the rotating disk 911 to rotate is hinged in the blocking block 32. The cylinder body of the second hydraulic cylinder 913 is hinged to the blocking block 32, and the piston rod of the second hydraulic cylinder 913 is hinged to the rotating disk 911. The central axis of the second hydraulic cylinder 913 and the central axis of the rotating disk 911 are skew straight lines.

[0058] The implementation principle of Example 2 is as follows: when auxiliary equipment (such as a milling cutter replacement assembly) needs to be installed, the first hydraulic cylinder 71 drives the movable plate 72 to slide, so that the blocking block 32 can be quickly separated from the working window 31 and has enough space for rotation. Then, with the cooperation of the first connecting rod 84, the second connecting rod 85, the third connecting rod 86 and the fourth connecting rod 87, the turning cylinder 83 drives the blocking block 32 to rotate to a horizontal state and rest on the support seat 33. This opens the working window 31 and reserves enough space for the auxiliary equipment. At the same time, the blocking block 32 and the support seat 33 cooperate to provide a stable installation platform for the auxiliary equipment, and the design of the support seat 33 increases the support area of the column 3. Even if the opening of the working window 31 reduces the rigidity of the column 3 to a certain extent, the problem of insufficient rigidity of the column 3 is effectively compensated by increasing the support area, maintaining the overall stability of the machine tool and reducing the chattering phenomenon that may be caused by structural instability.

[0059] When auxiliary equipment is no longer needed, the tilting cylinder 83 rotates the blocking block 32 to a vertical position, and the first hydraulic cylinder 71 resets the blocking block 32 and recloses the working window 31. Subsequently, the second hydraulic cylinder 913 rotates the rotating disk 911. Guided by the arc-shaped guide groove 9111, the clamping rods 92 extend out of the blocking block 32 and press against the inner wall of the working window 31. Multiple clamping rods 92 press against the inner wall of the working window 31. This multi-point support method evenly distributes the stress on the blocking block 32, avoiding local stress concentration or deformation caused by single-point force. It also restores the integrity of the column 3 and significantly improves its rigidity, further reducing vibrations that may occur during machining and minimizing tool chatter.

[0060] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A five-axis machining center for titanium alloy flap rails, characterized by: The invention comprises a base (1), a Y-direction slide (5) and a Z-direction slide (6), wherein both sides of the base (1) are connected to columns (3), and all the columns (3) are commonly connected to a crossbeam (4), and the crossbeam (4) is provided with a first movable through-slot (41) along its length direction, and the first movable through-slot (41) passes through the top and bottom of the crossbeam (4); the Y-direction slide (5) is slidably connected in the first movable through-slot (41), and the crossbeam (4) is provided with a first servo drive unit (51) for driving the Y-direction slide (5) to move along the Y-axis direction; The Y-direction slide (5) is provided with a second movable through-slot (52) along the height direction, the second movable through-slot (52) passes through the top and bottom of the Y-direction slide (5), the Z-direction slide (6) is slidably connected in the second movable through-slot (52), the Y-direction slide (5) is provided with a second servo drive unit (62) for driving the Z-direction slide (6) to move along the Z-axis direction, and the Z-direction slide (6) is installed with a five-axis head (63); A third servo drive unit (11) is provided on the base (1); the third servo drive unit (11) is connected to a workbench (2) and drives the workbench to move along the X-axis direction; a titanium alloy flap slide rail workpiece is fixed on the workbench (2).

2. The five-axis machining center for titanium alloy flap rails according to claim 1, characterized in that: The workbench (2) and the lead screw of the third servo drive unit (11) are both centrally arranged on the base (1), and the base (1) is slidably connected to both sides of the bottom of the workbench (2) via a first symmetrical guide rail mechanism (12).

3. The five-axis machining center for titanium alloy flap rails according to claim 1, characterized in that: The Y-direction slide (5) is T-shaped, and the crossbeam (4) is slidably connected to the top and bottom sides of the Y-direction slide (5) via a second symmetrical guide rail mechanism (42).

4. The five-axis machining center for titanium alloy flap rails according to claim 1, characterized in that: The Z-direction slide (6) is a rectangular body, the number of the second servo drive units (62) is plural and symmetrically arranged about the vertical center axis of the Z-direction slide (6), the Y-direction slide (5) is provided with a support cylinder (53), the support cylinder (53) supports the Z-direction slide (6), the number of the support cylinder (53) is plural and symmetrically arranged about the vertical center axis of the Z-direction slide (6), and the Y-direction slide (5) is slidably connected to the Z-direction slide (6) through a third symmetrical guide rail mechanism (61).

5. The five-axis machining center for titanium alloy flap rails according to claim 1, characterized in that: The base (1) has chip collecting grooves (13) on both sides of the top along the X-axis direction, and the base (1) is rotatably connected to a conveying screw (14), the conveying screw (14) is located in the chip collecting groove (13), and the conveying screw (14) is used to discharge waste chips from the base (1), and the conveying screw (14) is driven by a motor; An inspection opening (64) is provided on the Z-direction slide seat (6), and a sealing plate (65) for sealing the inspection opening (64) is bolted to the Z-direction slide seat (6).

6. The five-axis machining center for titanium alloy flap rails according to claim 1, characterized in that: The column (3) is provided with a working window (31), and a blocking block (32) for blocking the working window (31) is provided on the column (3). A transverse movement component (7) is provided on the column (3), and the transverse movement component (7) is connected to a flip component (8), and the flip component (8) is connected to the blocking block (32). A tightening component (9) is provided in the blocking block (32), and a support seat (33) is installed at the bottom of the column (3); The transverse movement component (7) is located in the working window (31), and the transverse movement component (7) is used to drive the flip component (8) and the blocking block (32) to move along the Y-axis direction, and enable the blocking block (32) to extend out of the working window (31); The flip assembly (8) is used to drive the blocking block (32) to flip and rest on the support seat (33); When the blocking block (32) is located in the working window (31), the pressing assembly (9) can press against the column (3).

7. The five-axis machining center for titanium alloy flap rails according to claim 6, characterized in that: The transverse movement assembly (7) includes a first hydraulic cylinder (71), which is installed on the inner wall of the working window (31). There are two first hydraulic cylinders (71) and they are arranged opposite to each other. The first hydraulic cylinders (71) are connected to a movable plate (72), and the movable plate (72) is slidably arranged in the working window (31).

8. The five-axis machining center for titanium alloy flap rails according to claim 6, characterized in that: The flip assembly (8) comprises a first connecting seat (81), a second connecting seat (82) and a flip cylinder (83), wherein the first connecting seat (81) is mounted on the blocking block (32), and the second connecting seat (82) is mounted on the transverse movement assembly (7), the first connecting seat (81) is hinged with a first connecting rod (84) and a second connecting rod (85), and the second connecting seat (82) is hinged with a third connecting rod (86) and a fourth connecting rod (87), wherein the third connecting rod (86) is Z-shaped and is located between the first connecting seat (81) and the fourth connecting rod ( 87), the third connecting rod (86) is hinged to the first connecting rod (84) and the second connecting rod (85), the second connecting rod (85) is farther away from the second connecting seat (82) than the first connecting rod (84), the first connecting rod (84) is hinged to the fourth connecting rod (87), the first connecting rod (84) and the second connecting rod (85) are parallel to each other, the piston rod of the flip cylinder (83) is hinged to one end of the third connecting rod (86) farther away from the second connecting seat (82), and the cylinder body of the flip cylinder (83) is hinged to the transverse movement assembly (7); When the blocking block (32) is in a state of sealing the working window (31), the hinge between the flip cylinder (83) and the third connecting rod (86) is farther away from the blocking block (32) than the hinge between the third connecting rod (86) and the second connecting seat (82), and the hinge between the flip cylinder (83) and the third connecting rod (86) is closer to the blocking block (32) than the hinge between the fourth connecting rod (87) and the second connecting seat (82).

9. The five-axis machining center for titanium alloy flap rails according to claim 6, characterized in that: The pressing assembly (9) comprises a driving member (91) and a plurality of pressing rods (92), wherein the driving member (91) and the pressing rods (92) are both arranged in the blocking block (32), and the driving member (91) is used to drive the plurality of pressing rods (92) to extend out of the blocking block (32) and simultaneously press against the inner wall of the working window (31).

10. The five-axis machining center for titanium alloy flap rails according to claim 9, characterized in that: The clamping assembly (9) includes a rotating disk (911), the rotating disk (911) is rotatably connected to the blocking block (32), a plurality of the clamping rods (92) are slidably arranged in the blocking block (32), and the plurality of the clamping rods (92) are circumferentially arranged along the rotating disk (911), each of the clamping rods (92) is connected to a guide column (912), the rotating disk (911) is provided with a plurality of arc-shaped guide grooves (9111) along its circumference, the guide columns (912) correspond to the arc-shaped guide grooves (9111) one by one, the guide columns (912) are inserted into the corresponding arc-shaped guide grooves (9111), and a second hydraulic cylinder (913) for pushing the rotating disk (911) to rotate is hinged in the blocking block (32).

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