An aero blade processing machine tool disc tool magazine

Abstract

The application discloses a disc tool magazine of an aviation blade processing machine tool, and relates to the technical field of processing center accessories, which comprises a first mounting base, a mounting frame, a second mounting base, a driving assembly and a control module, the mounting frame is rotationally connected to the first mounting base, a plurality of second mounting bases are arranged on the mounting frame along the rotation axis of the mounting frame, the second mounting base is rotationally connected with a tool sleeve, the rotation axis of the tool sleeve is perpendicular to the rotation axis of the mounting frame, the driving assembly comprises a first driving source, a second driving source and a third driving source, the first driving source is used for driving the mounting frame to rotate, the second driving source is used for driving the second mounting base to move, and the third driving source is used for driving the tool sleeve to rotate, and the control module is used for controlling the operation of the first driving source, the second driving source and the third driving source. The application has the effect that when the disc tool magazine is provided with a milling cutter with a large size, the plurality of tool sleeves of the disc tool magazine can be all provided with cutters.

Description

Technical Field

[0001] This application relates to the technical field of machining center accessories, and in particular to a disc-type tool magazine for an aircraft blade machining machine. Background Technology

[0002] Aircraft blades are a crucial component of aero engines, directly determining their performance. Aero engines are the heart of an aircraft and a vital reflection of a nation's scientific, industrial, and defense capabilities.

[0003] Aircraft blades have many curved surfaces, requiring machining centers for manufacturing. One essential accessory for a machining center is the tool magazine, which stores and changes tools. The tool magazine works in conjunction with an automatic tool changer (APC) to exchange tools between the tool holder and the tool magazine. Tool magazines come in various types, including disc-type, slat-type, and chain-type, with disc-type magazines being most commonly used in small vertical or horizontal machining centers.

[0004] The disc-type tool magazine includes a disc-shaped mounting base. The axis of the mounting base is perpendicular to the spindle of the machining center, on which the tool holder is mounted. A mounting plate is coaxially rotatably connected to the mounting base. Multiple tool sleeves are arranged around the edge of the mounting plate along its rotation axis. The tool sleeves are rotatably connected to the mounting plate and can rotate to positions perpendicular to and parallel to the mounting plate. The mounting plate is marked with multiple labels corresponding to the multiple tool sleeves. An automatic tool changer is located between the mounting plate and the spindle of the machining center. The automatic tool changer includes a robotic arm for exchanging tools between the tool holder and the tool magazine. The robotic arm is rotatable, and its rotation axis is parallel to the spindle on which the tool holder is mounted. The robotic arm can also move along its rotation axis. Clamping components for holding tools are provided at both ends of the robotic arm.

[0005] During use, the operator installs the cutting tool in the tool holder and inputs the correspondence between the cutting tool and the tool holder into the control system according to the label. When changing tools, the control system drives the mounting plate to rotate until the corresponding tool holder is positioned for clamping by the robotic arm. Then, the control system controls the corresponding tool holder to rotate until it is parallel to the mounting plate. The robotic arm rotates until the clamping components at both ends clamp the cutting tool in the corresponding tool holder and the cutting tool on the tool holder, respectively. The robotic arm moves downwards, removing the two cutting tools from the corresponding tool holder and tool holder. The robotic arm rotates again to align the two cutting tools with the corresponding tool holder and tool holder, respectively. Then, the robotic arm moves upwards, installing the two cutting tools onto the corresponding tool holder and tool holder, respectively. Finally, the robotic arm returns to its original position, thus completing the replacement of the cutting tool on the corresponding tool holder and the cutting tool on the tool holder.

[0006] However, aircraft blades have many curved surfaces and require milling cutters for machining. The small spacing between adjacent tool holders in a disc-type tool magazine means that when storing large-sized milling cutters, the disc-type tool magazine cannot install tools on the tool holders on both sides of the tool holder that holds the milling cutter. As a result, the disc-type tool magazine has a limited tool storage capacity when machining aircraft blades, which may not be able to meet the machining requirements. Summary of the Invention

[0007] In order to enable all the tool holders of the disc-type tool magazine to be equipped with tools when a large-sized milling cutter is installed, this application provides a disc-type tool magazine for an aerospace blade machining machine.

[0008] This application provides a disc-type tool magazine for an aerospace blade machining machine, employing the following technical solution:

[0009] A disc-type tool magazine for an aerospace blade machining machine includes:

[0010] First mounting base;

[0011] Mounting bracket, the mounting bracket being rotatably connected to the first mounting base;

[0012] Multiple second mounting seats, the rotation axis of the multiple second mounting seats ring mounting bracket is set on the mounting bracket, and the second mounting seat is rotatably connected to a blade sleeve, the rotation axis of the blade sleeve is perpendicular to the rotation axis of the mounting bracket;

[0013] A driving assembly, comprising a first driving source, a second driving source, and a third driving source, wherein the first driving source is used to drive the mounting bracket to rotate, the second driving source is used to drive the second mounting base to move, and the third driving source is used to drive the tool holder to rotate.

[0014] A control module is electrically connected to a first drive source, a second drive source, and a third drive source, and the control module is used to control the operation of the first drive source, the second drive source, and the third drive source.

[0015] By adopting the above technical solution, when a large-sized milling cutter needs to be installed, the control module controls the second drive source to drive the corresponding second mounting base to move away from the mounting frame, so that the corresponding tool holder and the adjacent tool holder are offset along the rotation axis of the mounting frame. Then, the milling cutter is installed on the tool holder on the corresponding second mounting base, and the milling cutter does not interfere with the adjacent tool. When the tool holder needs to install the milling cutter, the control module controls the first drive source to drive the mounting frame to rotate until the corresponding tool holder is on one side of the robotic arm. Then, the second drive source drives the tool holder to rotate until the axis of the tool holder is perpendicular to the axis of the mounting frame. At the same time, the third drive source drives the second mounting base to move so that the robotic arm can grasp the milling cutter in the corresponding tool holder. Then, the robotic arm rotates to exchange positions between the milling cutter and the tool on the tool holder. After the tool change is completed, the second drive source and the third drive source jointly drive the second mounting base to reset.

[0016] Optionally, the mounting bracket is disc-shaped and rotatably connected to the first mounting base via a first rotating shaft. A support ring is provided on the outer wall of the mounting bracket around the rotation axis of the mounting bracket. A support block is provided on the inner wall of the first mounting base. The support block is located below the mounting bracket and abuts against the support ring.

[0017] By adopting the above technical solution, the large number of tool holders and tools mounted on the mounting bracket results in a significant force exerted on the first rotating shaft, making it prone to deformation. This affects the accuracy of the robotic arm in gripping the tools and increases the likelihood of tool drops or collisions during tool changes. Increasing the diameter of the first rotating shaft makes it more difficult to machine and increases the space occupied by the tool magazine. By using the abutment between the support ring and the support block, the first mounting base and the first rotating shaft share the force exerted on the first rotating shaft by the mounting bracket, thereby reducing the degree of deformation of the first rotating shaft without increasing its diameter.

[0018] Optionally, the blade sleeve is connected to a first connector, the output end of the third drive source is movable along the rotation axis of the mounting bracket, and the output end of the third drive source is connected to a second connector for connecting with the first connector.

[0019] By adopting the above technical solution, when the second mounting base rotates the tool holder to the tool changing position, the output end of the third drive source drives the first connector to move closer to the second connector, connecting the first connector to the second connector. Then, the output end of the third drive source moves away from the second mounting base, rotating the tool holder through the first and second connectors until the axis of the tool holder is perpendicular to the rotation axis of the mounting frame, allowing the robotic arm to change the tool. After the tool change, the output end of the third drive source moves closer to the second mounting base, resetting the tool holder, disconnecting the first connector from the second connector, and then resetting the output end of the third drive source.

[0020] Optionally, it also includes a first connecting rod, one end of which is rotatably connected to the tool sleeve, and the other end of which is connected to the first connector.

[0021] By adopting the above technical solution, the output end of the third drive source drives the tool sleeve to rotate through the first connecting rod. The first connecting rod can rotate so that when the first connector is connected to the second connector, the second mounting base, the tool sleeve, the first connecting rod and the output end of the third drive source form a linkage mechanism, thereby converting the movement of the output end of the third drive source into the rotation of the tool sleeve.

[0022] Optionally, a first elastic element is connected between the first connecting rod and the tool sleeve.

[0023] By adopting the above technical solution, the first elastic element enables the first connecting rod to automatically reset after the first connector is disconnected from the second connector, and reduces the rotation of the first connecting rod relative to the second mounting seat due to centrifugal force when the mounting frame rotates, thereby improving the stability of the first connecting rod when the mounting frame rotates.

[0024] Optionally, the first connector is a magnetic component, the second connector is an electromagnet, and the second connector is electrically connected to the control module.

[0025] By adopting the above technical solution, when the third driving source drives the second connector to move towards the first connector, the control module controls the electromagnet to be magnetic, so that the first connector and the second connector move towards each other, thereby facilitating the connection between the first connector and the second connector. When the tool change is completed, the control module controls the electromagnet to be de-energized, so that the first connector and the second connector are disconnected.

[0026] Optionally, the first mounting base is provided with a protective cover, and the protective cover has a clearance opening, which is used to prevent the tool sleeve from interfering with the protective cover when it rotates relative to the second mounting base.

[0027] By adopting the above technical solution, the protective cover can reduce the situation where cutting chips generated during cutting splash into the tool magazine and thus affect the operation of the tool magazine. The clearance opening allows the tool holder to pass through the clearance opening and rotate until the axis of the tool holder is perpendicular to the rotation axis of the mounting bracket.

[0028] Optionally, a baffle is rotatably connected to the clearance opening, and a second elastic element is connected between the baffle and the protective cover.

[0029] By adopting the above technical solution, the baffle can reduce the chips splashed from the clearance port into the tool magazine. When the tool sleeve rotates relative to the second mounting base, the tool sleeve abuts against the baffle, causing the baffle to rotate. When the tool sleeve resets, the second elastic element drives the baffle to reset.

[0030] Optionally, one end of the protective cover has an installation port, and a protective cover is rotatably connected to the installation port. The protective cover is used to close and open the installation port.

[0031] By adopting the above technical solution, when the operator installs the tool into the tool holder, he flips over the protective cover and installs the tool into the tool holder through the installation port. After installation, the protective cover is fastened.

[0032] Optionally, a handle is fixedly connected to the outside of the protective cover.

[0033] By adopting the above technical solution, the handle is easy for operators to flip and fasten the protective cover.

[0034] In summary, this application includes at least one of the following beneficial effects:

[0035] 1. When a large-sized milling cutter needs to be installed, the control module controls the second drive source to drive the corresponding second mounting base to move away from the mounting frame, so that the corresponding tool holder and the adjacent tool holder are staggered along the rotation axis of the mounting frame. Then the milling cutter is installed on the tool holder on the corresponding second mounting base, and the milling cutter does not interfere with the adjacent tool, thereby increasing the tool storage capacity of the tool magazine when a large-sized milling cutter is installed.

[0036] 2. The contact between the support ring and the support block allows the first mounting base and the first rotating shaft to jointly bear the force applied to the first rotating shaft by the mounting bracket, thereby reducing the degree of deformation of the first rotating shaft without increasing its diameter;

[0037] 3. The protective cover can reduce the splashing of chips generated during cutting into the tool magazine, thus affecting the operation of the tool magazine. The clearance opening allows the tool holder to pass through the clearance opening and rotate until the axis of the tool holder is perpendicular to the rotation axis of the mounting bracket.

[0038] 4. The baffle can reduce the chips splashed from the relief port into the tool magazine. When the tool holder rotates relative to the second mounting base, the tool holder abuts against the baffle, causing the baffle to rotate. When the tool holder returns to its original position, the second elastic element drives the baffle to return to its original position. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0040] Figure 2 This is a schematic diagram illustrating the internal structure of the protective cover, as shown in the embodiments of this application.

[0041] Figure 3 This is a partial cross-sectional view used in this application embodiment to illustrate the third driving source;

[0042] Figure 4 This is a partial structural schematic diagram of the blade sheath used in an embodiment of this application.

[0043] Explanation of reference numerals in the attached drawings: 1. First mounting base; 11. First rotating shaft; 12. Support block; 2. Mounting bracket; 21. Support ring; 3. Second mounting base; 31. Tool holder; 32. First connecting rod; 33. First elastic element; 34. First connector; 4. Drive assembly; 41. First drive source; 42. Second drive source; 43. Third drive source; 431. Second connector; 5. Protective cover; 51. Clearance opening; 52. Baffle; 53. Second elastic element; 54. Mounting opening; 55. Protective cover; 56. Handle; 6. Robotic arm; 7. Tool holder. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0045] This application discloses a disc-type tool magazine for an aerospace blade machining machine tool, as shown in the embodiments below. Figure 1 , Figure 2 and Figure 3 The disc-type tool magazine of the aircraft blade processing machine tool includes a first mounting base 1, a drive assembly 4 and a control module. The drive assembly 4 includes a first drive source 41, which is a servo motor. The first mounting base 1 is cylindrical. The first drive source 41 is installed inside the first mounting base 1. The output shaft of the first drive source 41 is fixedly connected to a first rotating shaft 11. The first rotating shaft 11 is fitted with a mounting bracket 2, which is fixedly connected to the first rotating shaft 11 through a coupling. The mounting bracket 2 is disc-shaped.

[0046] Reference Figure 2 and Figure 3 A support ring 21 is fixedly connected to one end edge of the mounting bracket 2 near the bottom wall of the first mounting base 1. Two support blocks 12 are fixedly connected at intervals to the inner side wall of the first mounting base 1. Both support blocks 12 are located below the mounting bracket 2. Both support blocks 12 are arc-shaped plates and abut against the support ring 21.

[0047] Reference Figure 2 and Figure 3 A third drive source 43 is provided between the two support blocks 12. The third drive source 43 is an electric push rod. The third drive source 43 is installed inside the first mounting base 1, and the moving direction of the output end of the third drive source 43 is the axial direction of the first rotating shaft 11. The output end of the third drive source 43 is fixedly connected to a second connector 431, which is an electromagnet. The first drive source 41, the third drive source 43, and the second connector 431 are all electrically connected to the control module.

[0048] The control module controls the output shaft of the first drive source 41 to rotate, and the output shaft of the first drive source 41 drives the mounting frame 2 to rotate through the first rotating shaft 11. The support block 12 is located below the mounting frame 2 and abuts against the support ring 21, so that the first mounting base 1 and the first rotating shaft 11 share the weight of the mounting frame 2, thereby making the required diameter of the first rotating shaft 11 smaller and less prone to deformation.

[0049] Reference Figure 3 and Figure 4The mounting bracket 2 has multiple second drive sources 42, electrically connected to the control module, installed at intervals around the first rotating shaft 11. Each second drive source 42 is an electric push rod, and the output end of the second drive source 42 moves in the axial direction of the first rotating shaft 11. A second mounting base 3 is fixedly connected to the output end of the second drive source 42. A tool holder 31 for fixing the cutting tool is hinged to the edge of the second mounting base 3, and the tool holder 31 is self-locking due to friction at the hinge point with the second mounting base 3. The tool holder 31 is a cylindrical shape with one open end, and its axis is parallel to the axis of the first rotating shaft 11. A first connecting rod 32 is hinged to the bottom of the tool holder 31, and a first elastic element 33 (a spring) is connected between the first connecting rod 32 and the bottom wall of the tool holder 31. A first connector 34 (a magnetic element) is fixedly connected to the end of the first connecting rod 32 away from the tool holder 31. The method by which the tool holder 31 fixes the cutting tool is a conventional technique in the art and will not be described in detail here.

[0050] Multiple cutting tools required for machining are installed one by one in the tool holder 31. When installing a large milling cutter, the control module controls the second drive source 42 to drive the corresponding second mounting base 3 to move away from the mounting frame 2, so that the distance between the corresponding tool holder 31 and the mounting frame 2 is greater than the distance between the adjacent tool holder 31 and the mounting frame 2. Then the milling cutter is installed in the corresponding tool holder 31. Since the milling cutter head and the cutter head of the adjacent tool are staggered along the direction of the first rotating shaft 11, the milling cutter head does not interfere with the adjacent tool.

[0051] When a milling cutter is needed for cutting, the control module controls the first drive source 41 to drive the mounting bracket 2 to rotate, so that the first connector 34 on the cutter sleeve 31 with the milling cutter aligns with the second connector 431. Then, the control module controls the third drive source 43 to drive the second connector 431 to move closer to the first connector 34. At the same time, the control module controls the electromagnet to be energized, so that the first connector 34 and the second connector 431 move towards each other until the first connector 34 and the second connector 431 are connected. Then, the output end of the third drive source 43 moves away from the second mounting bracket 3, so that... The tool holder 31 is rotated until its axis is perpendicular to the axis of the first rotating shaft 11. At the same time, the second drive source 42 adjusts the position of the tool holder 31 along the axis of the first rotating shaft 11 so that the robotic arm 6 can grip the shank of the milling cutter. Then the robotic arm 6 rotates and grips the milling cutter and the tool on the tool holder 7. The robotic arm 6 moves downward so that the milling cutter is disengaged from the tool holder 31 and the tool on the tool holder 7 is disengaged from the tool holder 7. Then the robotic arm 6 rotates so that the position of the milling cutter and the tool is exchanged. Then the robotic arm 6 moves upward so that the milling cutter is mounted on the tool holder 7 and the tool originally on the tool holder 7 is mounted on the corresponding tool holder 31. After the tool change is completed, the robotic arm 6 resets. The control module controls the third drive source 43 to drive the second connector 431 to move closer to the second mounting base 3, causing the corresponding tool sleeve 31 to rotate until its axis is parallel to the axis of the first rotating shaft 11. The tool sleeve 31 then self-locks due to friction at the hinge point with the second mounting base 3. The control module then de-energizes the electromagnet, disconnecting the first connector 34 from the second connector 431, and resets the output of the second drive source 42. In other embodiments of this application, when the third drive source 43 drives the tool sleeve 31 to rotate relative to the second mounting base 3, the second drive source 42 can drive the tool sleeve 31 to move, thereby increasing the rotation speed of the tool sleeve 31.

[0052] The first elastic element 33 causes the first connecting rod 32 to automatically reset after the first connector 34 is disconnected from the second connector 431. Furthermore, when the mounting frame 2 rotates, it reduces the rotation of the first connecting rod 32 relative to the second mounting base 3 due to centrifugal force, thereby improving the stability of the first connecting rod 32 when the mounting frame 2 rotates.

[0053] Reference Figure 1 and Figure 2 A protective cover 5 is fixedly connected to the first mounting base 1. The protective cover 5 is cylindrical. A clearance opening 51 is provided at the bottom of the protective cover 5 along the axis of the first rotating shaft 11. A baffle 52 is hinged at the clearance opening 51. The baffle 52 is arc-shaped and has two mirror-arranged second elastic elements 53 connected between its inner sidewall and the protective cover 5. The second elastic elements 53 are springs. The length of the baffle 52 is less than the length of the blade sleeve 31.

[0054] The protective cover 5 can reduce the amount of chips splashing into the tool magazine, and the baffle 52 can reduce the amount of chips splashing into the tool magazine from the clearance port 51.

[0055] When the blade sleeve 31 rotates relative to the second mounting base 3, the blade sleeve 31 passes through the relief port 51 and exits the protective cover 5. At the same time, the blade sleeve 31 abuts against the baffle 52, causing the baffle 52 to rotate with the blade sleeve 31. When the blade sleeve 31 resets, the second elastic element 53 drives the baffle 52 to reset.

[0056] The length of the baffle 52 is less than the length of the tool holder 31, so that the baffle 52 does not interfere with the robotic arm 6 when the robotic arm 6 holds the tool handle.

[0057] Reference Figure 1 The protective cover 5 has an installation port 54 at the end away from the first mounting base 1. A protective cover 55 for closing and opening the installation port 54 is hinged at the installation port 54. A handle 56 is fixedly connected to the outer wall of the protective cover 55.

[0058] When installing the cutting tool into the corresponding tool holder 31, the operator needs to hold the handle 56 and open the protective cover 55, and then install the cutting tool into the tool holder 31 through the installation port 54. The protective cover 55 can reduce the possibility of chips splashing into the tool magazine from the installation port 54.

[0059] The implementation principle of the disc-type tool magazine for an aircraft blade processing machine tool in this application embodiment is as follows: When installing a large-sized milling cutter, the tool sleeve 31 for installing the milling cutter moves away from the mounting frame 2, so that the tool sleeve 31 and the adjacent tool sleeve 31 are staggered along the axial direction of the first rotating shaft 11, thereby making the cutter head of the milling cutter staggered from the cutter head of the adjacent tool, so that the adjacent tool sleeves 31 on both sides of the milling cutter can also install the tool.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An aeronautical blade machining machine tool disc tool magazine, characterized by: The utility model relates to a cutting tool, including: First mounting seat (1); Mounting frame (2) is rotatably connected to first mounting seat (1); A plurality of second mounting seat (3) are arranged on the mounting frame (2) along the rotation axis of the mounting frame (2), and the second mounting seat (3) is rotatably connected with a tool holder (31), and the rotation axis of the tool holder (31) is perpendicular to the rotation axis of the mounting frame (2); Drive assembly (4) includes first drive source (41), second drive source (42) and third drive source (43), the first drive source (41) is used to drive the mounting frame (2) to rotate, the second drive source (42) is used to drive the second mounting seat (3) to move, and the third drive source (43) is used to drive the tool holder (31) to rotate; Control module, the control module is electrically connected with first drive source (41), second drive source (42) and third drive source (43), and the control module is used to control the operation of first drive source (41), second drive source (42) and third drive source (43); The mounting frame (2) is disc-shaped, and is rotatably connected with the first mounting seat (1) by a first rotation shaft (11), the outer wall of the mounting frame (2) is provided with a supporting ring (21) along the rotation axis of the mounting frame (2), and the inner wall of the first mounting seat (1) is provided with a supporting block (12), the supporting block (12) is arranged below the mounting frame (2) and abuts against the supporting ring (21); The tool holder (31) is connected with a first connecting head (34), and the output end of the third drive source (43) can move along the direction of the rotation axis of the mounting frame (2), and the output end of the third drive source (43) is connected with a second connecting head (431) for being connected with the first connecting head (34); Further comprising a first connecting rod (32), one end of the first connecting rod (32) is rotatably connected with the tool holder (31), and the other end is connected with the first connecting head (34) The first connecting head (34) is a magnetic part, the second connecting head (431) is an electromagnet, and the second connecting head (431) is electrically connected with the control module.

2. An aerofoil blade machining machine tool pallet changer according to claim 1, characterised in that: A first elastic member (33) is connected between the first connecting rod (32) and the tool holder (31).

3. An aerofoil blade machining machine tool pallet changer according to claim 1, characterised in that: The first mounting seat (1) is provided with a protective cover (5), the protective cover (5) is provided with a gap (51), and the tool holder (31) does not interfere with the protective cover (5) when the tool holder (31) rotates relative to the second mounting seat (3).

4. An aerofoil blade machining machine tool pallet knife magazine according to claim 3, characterised in that: A baffle (52) is rotatably connected at the gap (51), and a second elastic member (53) is connected between the baffle (52) and the protective cover (5).

5. An aerofoil blade machining machine tool pallet knife magazine according to claim 4 characterised in that: One end of the protective cover (5) is provided with a mounting opening (54), and a protective cover (55) is rotatably connected at the mounting opening (54), and the protective cover (55) is used to close and open the mounting opening (54).

6. An aerofoil blade machining machine tool pallet knife magazine according to claim 5, characterised in that: A handle (56) is fixedly connected to the outside of the protective cover (55).

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