Five-axis linkage high-speed and high-precision machining center

Abstract

The invention relates to the field of machine tools, in particular to a five-axis linkage high-speed high-precision machining center which comprises a machine base, a three-axis moving module and a main shaft device are arranged at the top of the machine base, and the three-axis moving module is used for driving the main shaft device to move in the three different directions of the X axis, the Y axis and the Z axis. The main shaft device comprises at least one main shaft capable of rotating and / or feeding and is used for carrying out machining operations such as cutting, drilling and milling on a workpiece; a cradle type rotary table device and an automatic tool changing device are arranged at the bottom of the machine base, the cradle type rotary table device is used for achieving adjustment of two rotational freedom degrees of a workpiece in the machining process, and the automatic tool changing device is used for automatically changing tools on the main shaft device. According to the multi-axis linkage drilling and milling device, multi-axis linkage, high-speed and high-precision cutting, drilling, milling and other machining operations can be carried out on workpieces.

Description

Technical Field

[0001] The present application relates to the field of machine tools, and in particular to a five-axis linkage high-speed and high-precision machining center. Background Art

[0002] At present, there is a five-axis linkage machining machine tool on the market. This machine tool realizes all-round machining of the workpiece by integrating key components such as the front-to-back moving unit, the vertical moving unit, the tool changing unit and the tool installation unit. Specifically, the front-to-back moving unit and the vertical moving unit are fixed on the fixed seat, and the tool installation unit is driven to move in the front-to-back direction and the vertical direction through their respective moving mechanisms. The tool changing unit is arranged in the cavity of the fixed seat, including a tool holder and a tool circulation mechanism, which can automatically change the tool and improve the machining efficiency. In addition, the machine tool is also equipped with a horizontal moving device, a flipping device and a rotating device, which further enhances the machining capacity and flexibility of the machine tool.

[0003] Related technology discloses a five-axis linkage machining machine, which realizes all-round machining of workpieces by integrating key components such as a front-to-back moving unit, a vertical moving unit, a tool changing unit, and a tool installation unit. Specifically, the front-to-back moving unit and the vertical moving unit are fixed on a fixed seat, and the tool installation unit is driven to move in the front-to-back direction and the vertical direction through their respective moving mechanisms. The tool changing unit is arranged in the cavity of the fixed seat, including a tool holder and a tool circulation mechanism, which can automatically change the tool and improve the machining efficiency. In addition, the machine tool is also equipped with a horizontal moving device, a flipping device, and a rotating device, which further enhances the machining capability and flexibility of the machine tool.

[0004] Although the five-axis linkage machining machine tools in related technologies have achieved all-round machining of workpieces by integrating multiple key components and have improved machining efficiency and flexibility to a certain extent, there is still room for further improvement in machining speed, precision and automation. In particular, when facing the high-precision machining needs of complex parts, higher requirements are placed on the performance of machine tools. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art and meet the urgent market demand for high-precision and high-efficiency machining machine tools, the present application provides a five-axis linkage high-speed and high-precision machining center.

[0006] The five-axis linkage high-speed and high-precision machining center provided in this application adopts the following technical solutions: A five-axis linkage high-speed and high-precision machining center comprises a machine base, wherein a three-axis movable module and a spindle device are arranged on the top of the machine base, wherein the three-axis movable module is used to drive the spindle device to move along three different directions of X\Y\Z axes, and the spindle device comprises at least one rotatable and / or feedable spindle, which is used to perform machining operations such as cutting, drilling, and milling on a workpiece; a cradle-type turntable device and an automatic tool changing device are arranged at the bottom of the machine base, wherein the cradle-type turntable device is used to realize the adjustment of two rotational degrees of freedom of the workpiece during machining, and the automatic tool changing device is used to automatically replace the tool on the spindle device.

[0007] By adopting the above technical solution, the three-axis mobile module 2 on the top of the machine base drives the spindle device to move in the three directions of X, Y and Z axes at high speed and high precision. At the same time, the cradle-type turntable device at the bottom of the machine base realizes the adjustment of the two rotational degrees of freedom of the workpiece during the processing to meet the complex processing requirements; and the automatic tool changer is responsible for automatically changing the tool on the spindle device to improve the processing efficiency and flexibility. Its beneficial effect is that it can realize multi-axis linkage, high-speed and high-precision cutting, drilling, milling and other processing operations on the workpiece, and the automatic tool change function further improves the processing efficiency and convenience of operation.

[0008] Optionally, the three-axis moving module includes a first sliding seat, a first driving mechanism, a second sliding seat and a second driving mechanism, a lifting seat and a lifting driving mechanism, the first sliding seat is slidingly matched with the machine base, and the first driving mechanism is used to drive the first sliding seat to slide along a first direction; the second sliding seat is slidingly matched with the first sliding seat, and the second driving mechanism is used to drive the second sliding seat to slide along a second direction; the lifting seat is slidingly matched with the second sliding seat, and the lifting driving mechanism is used to drive the lifting seat to rise and fall, and the spindle device is arranged on the lifting seat.

[0009] By adopting the above technical solution, the first sliding seat on the machine base slides along the first direction (such as the Y axis) under the action of the first driving mechanism, the second sliding seat slides on the first sliding seat along the second direction (such as the X axis) perpendicular to the first direction under the action of the second driving mechanism, and the lifting seat performs lifting movement (such as the Z axis) under the action of the lifting driving mechanism, driving the spindle device set on the lifting seat to achieve precise positioning in three-dimensional space; at the same time, the cradle-type turntable device at the bottom of the machine base provides two rotational degrees of freedom for the workpiece to meet the needs of complex surface processing; the automatic tool changing device automatically changes the tool on the spindle device to improve processing efficiency and flexibility. Its beneficial effect is that the machining center combines a high-precision three-axis mobile module with a cradle-type turntable device, realizing high-speed and high-precision processing of the workpiece under five-axis linkage, and the automatic tool changing function further enhances the continuity and efficiency of the machining process, which is suitable for the processing and production of a variety of complex parts.

[0010] Optionally, the machine base, the first sliding seat and the second sliding seat are all integrated structures, the machine base is provided with a first cavity and a second cavity which are interconnected, the cradle-type turntable device is located in the first cavity, and the automatic tool changing device is located in the second cavity.

[0011] By adopting the above technical solution, the overall structure is compact and highly integrated, which can realize high-speed and high-precision five-axis linkage processing of complex workpieces. At the same time, the automatic tool changing system improves the processing efficiency, and the protective shell and safety door device ensure the safety of the operation process. It is suitable for the processing and production of a variety of high-precision and complex parts.

[0012] Optionally, the cradle-type turntable device includes a flipping mechanism and a rotating mechanism, the flipping mechanism includes a flipping table and a flipping driving component, the flipping table is deflected along the second direction and is rotationally connected to the machine base, and the flipping driving component is used to drive the flipping table to flip; the rotating mechanism includes a clamping table and a first rotating driving component, the clamping table is rotationally connected to the flipping table, and the first rotating driving component is used to drive the clamping table to rotate.

[0013] By adopting the above technical solution, the cradle-type turntable device located in the cavity of the machine base realizes the turning adjustment of the workpiece through the turning mechanism, and the rotating mechanism realizes the rotation adjustment of the workpiece around its own axis. These two mechanisms act on the workpiece together to realize the precise control of its two rotational degrees of freedom during the processing. It not only has high-speed and high-precision three-axis movement capabilities, but also realizes the flexible adjustment of the workpiece in two rotational degrees of freedom through the cradle-type turntable device, greatly expanding the processing range, improving processing accuracy and efficiency, and is suitable for the processing and production of a variety of complex parts.

[0014] Optionally, the automatic tool changing device includes a tool changing base, a tool slide seat, a tool changing drive mechanism, a tool holder and a tool magazine transmission mechanism; the tool changing base is arranged on the machine base, the tool slide seat is slidably cooperated with the tool changing base, and the tool changing drive mechanism is used to drive the tool slide seat to slide in a first direction; the tool holder is arranged on the tool slide seat; the tool magazine transmission mechanism includes a transmission member, a second rotating drive member and a plurality of tool clamps, the transmission member is arranged around the tool holder, the transmission member is rotatably connected to the tool holder, and a plurality of tool clamps are arranged on the transmission member at equal intervals; the second rotating drive member is arranged on the tool holder, and the second rotating drive member is used to drive the transmission member to operate, thereby driving a plurality of tool clamps to move in a cycle at the same time.

[0015] By adopting the above technical solution, when the tool needs to be replaced, the CNC system receives the tool change command and confirms that the machine tool is currently in a tool changeable state. The tool magazine is located below the spindle, and the tool is mounted on the horizontal tool holder by the tool holder. After setting the exchange sequence, the tool magazine tool and the spindle can be automatically loaded and unloaded and exchanged. The tool magazine transmission mechanism is not only suitable for the processing and production of a variety of high-precision and complex parts, but the entire processing process is highly automated and highly controlled.

[0016] Optionally, a first protective cover is arranged between the automatic tool changing device and the cradle-type turntable device, the first protective cover is provided with a passage opening for the automatic tool changing device to pass through, and the first protective cover is provided with an automatic door device for automatically opening and closing the passage opening.

[0017] By adopting the above technical solution, when the tool needs to be replaced, the tool slide rail seat in the automatic tool changer slides to the vicinity of the spindle device under the drive of the control system, and the tool changer enters the working area through the lead-in port on the first protective cover. The automatic door device automatically opens during this process to ensure the smooth progress of the tool change process. After the tool change is completed, the automatic door device automatically closes the lead-in port to maintain the closedness of the working area; at the same time, the tool magazine transmission mechanism circulates and moves the tool holder through the transmission parts to ensure that all tools are available at any time. The entire processing process achieves high automation, high-precision control and good isolation of the working area.

[0018] Optionally, the automatic door device includes a first safety gate and a first sliding drive component, the first safety gate slidingly cooperates with the first protective cover, and the first sliding drive component is used to drive the first safety gate to slide toward or away from the lead-in opening.

[0019] By adopting the above technical solution, during the tool changing process, the tool slide rail seat in the automatic tool changing device slides to the vicinity of the spindle device. At this time, the first sliding drive in the automatic door device drives the first safety gate to slide in the direction away from the lead-in port, opening the passage to the working area. The tool changing manipulator enters through the lead-in port and performs the tool changing operation. After the tool changing is completed, the first safety gate recloses the lead-in port under the drive of the first sliding drive; at the same time, the tool magazine transmission mechanism circulates the tool holder through the transmission member to ensure the rapid replacement and efficient management of the tool. The entire processing process is highly automated, achieving high-precision control and good isolation of the working area. The processing efficiency and automation level are significantly improved through the efficient automatic tool changing device and automatic door device. The automatic door device makes the tool changing process smoother while maintaining the closedness and safety of the working area.

[0020] Optionally, a protective shell is provided on the outside of the machine base, and a safety door device is provided on the protective shell. The safety door device includes a mounting seat, a second safety gate and a second sliding drive member. The mounting seat is fixed to the top of the machine base, the second safety gate is slidably matched with the protective shell, the second sliding drive member is provided on the mounting seat, and the second sliding drive member is used to drive the second safety gate to slide.

[0021] By adopting the above technical solution, the second safety gate can be opened or closed quickly and smoothly by means of sliding cooperation, ensuring that the dangerous area can be quickly isolated when needed, improving the safety of the overall equipment. The use of sliding drive to control the opening and closing of the second safety gate is simpler and faster to operate than traditional manual doors or revolving doors. This can not only reduce the physical burden of operators, but also improve production efficiency.

[0022] Optionally, a first slide rail type protective cover is arranged between the mounting seat and the first sliding seat, one end of the first slide rail type protective cover is connected to the mounting seat, and the other end of the first slide rail type protective cover is connected to the first sliding seat.

[0023] By adopting the above technical solution, the first slide rail type protective cover can effectively prevent debris, dust or liquid from entering the connection part between the mounting seat and the first sliding seat, thereby protecting the mechanical parts from damage and extending the service life of the equipment. By covering and protecting the connection part, the first slide rail type protective cover reduces the risk of mechanical failure or safety accidents caused by the entry of debris or liquid, and improves the safety of the overall equipment. Since the first slide rail type protective cover can prevent the accumulation of debris and dust, the frequency and cost of equipment maintenance are reduced. At the same time, its sturdy structure also ensures that the protective cover itself has a long service life and reduces the frequency of replacement.

[0024] Optionally, the machining center also includes a control system, which is electrically connected to the three-axis mobile module, the spindle device, the cradle-type turntable device and the automatic tool changing device, and is used to control the three-axis mobile module to drive the spindle device to precisely move along the three directions of the X\Y\Z axes, to control the spindle device to rotate and / or feed to perform cutting, drilling, milling and other machining operations, to control the cradle-type turntable device to adjust the two rotational degrees of freedom of the workpiece, and to control the automatic tool changing device to automatically replace the tool on the spindle device.

[0025] By adopting the above technical solutions, the control system realizes comprehensive and precise control of the entire machining process through electrical connection with key components such as the three-axis mobile module, spindle device, cradle-type turntable device and automatic tool changer. The control system not only commands the three-axis mobile module to drive the spindle device to move precisely along the three directions of the X, Y and Z axes, but also controls the spindle device to rotate and / or feed to perform various machining tasks such as cutting, drilling and milling; at the same time, it accurately controls the cradle-type turntable device to ensure flexible adjustment of the workpiece in two rotational degrees of freedom; in addition, the control system also intelligently manages the automatic tool changer to automatically and efficiently replace the tool on the spindle device. This highly integrated control system ensures the automation, high precision and safety of the machining process, significantly improves machining efficiency, machining quality and production flexibility, and enables the machining center to easily cope with the machining needs of various high-precision and complex parts.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the three-axis moving module on the top of the machine base and the cradle-type turntable device at the bottom, high-speed and high-precision processing of the workpiece under five-axis linkage is achieved. It not only expands the processing range, but also improves the processing accuracy and efficiency, and is suitable for the processing and production of a variety of complex parts; 2. The automatic tool changer can automatically change the tools on the spindle device without manual intervention, which significantly improves processing efficiency and flexibility. At the same time, the tool magazine transmission mechanism circulates the tool holder through the transmission parts to ensure that all tools are available at any time, further improving processing efficiency; 3. The outer wall of the machine base is equipped with a protective shell, and a safety door device is installed on the protective shell, which can effectively prevent splashes and noise during the processing from causing harm to the operator, while reducing external interference and improving processing accuracy. In addition, the control system comprehensively and accurately controls the entire processing process to ensure the stability and safety of the processing process; 4. The entire machining center has a compact structure and high integration, making operation and maintenance more convenient; 5. Through the integrated management of the control system, the entire processing process is automatically controlled. This highly automated production method not only improves production efficiency, but also reduces labor costs and the risk of human errors, making production more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a five-axis linkage high-speed and high-precision machining center in an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of a machine base, a three-axis mobile module, a cradle-type turntable device, an automatic tool changing device and a spindle device in an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of the machine base, the three-axis moving module, the cradle-type turntable device and the first protective cover in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the automatic tool changing device in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of the first protective cover in the embodiment of the present application.

[0032] Description of reference numerals: 1. Machine base; 11. First cavity; 12. Second cavity; 2. Three-axis moving module; 21. First sliding seat; 22. Second sliding seat; 23. Lifting seat; 24. Second chain protective cover; 3. Cradle-type turntable device; 31. Turning table; 32. Fixture table; 4. Automatic tool changing device; 41. Tool changing base; 42. Tool slide rail seat; Tool changing drive mechanism; 43. Tool holder; 44. Tool magazine transmission mechanism; 441. Transmission member; 443. Tool clamp; 5. First protective cover; 51. Isolation plate; 52. Side plate; 53. First slide rail protective cover; 6. Automatic door device; 61. First safety gate; 62. First sliding drive member; 7. Protective shell; 8. Safety door device; 81. Mounting seat; 82. Second safety gate; 83. Second sliding drive member; 9. Spindle device. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be the common meanings understood by those skilled in the art to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components.

[0035] For ease of understanding, three different directions are defined in this embodiment: First direction: On the horizontal plane, the direction from front to back of the five-axis linkage high-speed and high-precision machining center is defined as the Y-axis direction, which is also the first direction.

[0036] The second direction: On the horizontal plane, perpendicular to the X-axis direction, the direction from left to right of the five-axis linkage high-speed and high-precision machining center is defined as the X-axis direction, which is also the second direction.

[0037] The third direction: perpendicular to the horizontal plane, the direction from bottom to top of the five-axis linkage high-speed and high-precision machining center is defined as the Z-axis direction.

[0038] The present application embodiment discloses a five-axis linkage high-speed and high-precision machining center. Figure 1 The five-axis linkage high-speed and high-precision machining center includes a machine base 1, a three-axis moving module 2, a spindle device 9, a cradle-type turntable device 3 and an automatic tool changing device 4.

[0039] Reference Figure 2 In this embodiment, the base 1 is an integrated structure, and the specific material of the base 1 is high-specification nodular cast iron. The base 1 not only protects these key components, but also reduces the impact of the external environment, thereby improving the reliability and service life of the equipment.

[0040] Reference Figure 2 and Figure 3 , wherein the three-axis moving module 2 is arranged at the top of the machine base 1, and is used to drive the spindle device 9 to move along three different directions of the X, Y, and Z axes. A first cavity 11 is provided at the front of the machine base 1, and the top of the first cavity 11 is open. A second cavity 12 is provided at the rear of the machine base 1, and the first cavity 11 and the second cavity 12 are arranged along the X-axis direction. Both ends of the second cavity 12 along the X direction are open, and the first cavity 11 and the second cavity 12 are connected to each other. The cradle-type turntable device 3 is arranged in the first cavity 11, and the cradle-type turntable device 3 is used to realize the adjustment of the two rotational degrees of freedom of the workpiece during the processing. The automatic tool changing device 4 is arranged in the second cavity 12, and the automatic tool changing device 4 is used to automatically replace the tool on the spindle device 9. It effectively improves the stability and processing accuracy of the machining center, and at the same time improves the tool changing efficiency.

[0041] Continue to refer to Figure 2 and Figure 3 Specifically, the three-axis movable module 2 includes a first sliding seat 21, a first driving mechanism, a second sliding seat 22, a second driving mechanism, a lifting seat 23 and a lifting driving mechanism. In this embodiment, the first sliding seat 21 and the second sliding seat 22 are also an integrated structure, and the specific materials of the two are high-specification nodular ductile iron, which ensures the stability and rigidity of the structure.

[0042] Continue to refer to Figure 2 and Figure 3 , the first sliding seat 21 is slidably matched with the machine base 1, and the first driving mechanism is arranged on the machine base 1, and the first driving mechanism is used to drive the first sliding seat 21 to slide along the Y-axis direction. The first driving mechanism here can be a motor screw structure. The second sliding seat 22 is slidably matched with the first sliding seat 21, and the second driving mechanism is arranged on the first sliding seat, and the second driving mechanism is used to drive the second sliding seat 22 to slide along the X-axis direction. Similarly, the second driving mechanism can also be a motor screw structure. The lifting seat 23 is slidably matched with the second sliding seat 22, and the lifting driving mechanism is used to drive the lifting seat 23 to rise and fall. The lifting driving mechanism can select a cylinder, a hydraulic cylinder or an electric cylinder or a motor screw structure. The spindle device 9 is arranged on the lifting seat 23, thereby realizing the movement of the spindle device 9 in the three directions of the X, Y, and Z axes.

[0043] Continue to refer to Figure 2 and Figure 3 The three-axis moving module 2 also includes a plurality of guide mechanisms for guiding the precise movement of the first sliding seat 21, the second sliding seat 22 and the lifting seat 23. The guide mechanism can be a linear guide rail or a ball screw. The linear guide rail is suitable for high-precision applications, while the ball screw is suitable for heavy loads and long travel applications.

[0044] Reference Figure 2 The spindle device 9 includes at least one rotatable and / or feedable spindle, which is used for cutting, drilling, milling and other processing operations on the workpiece. The spindle device 9 can adopt a single spindle or multiple spindles, and multiple spindles can improve the processing efficiency. The drive mode of the spindle device 9 can be selected from a servo motor or a stepper motor. The servo motor provides higher precision and stability, while the stepper motor has lower cost.

[0045] Continue to refer to Figure 2 The cradle-type turntable device 3 includes a flipping mechanism and a rotating mechanism. The flipping mechanism includes a flipping table 31 and a flipping driving member. The flipping table 31 flips along the second direction. Both ends of the flipping table 31 are rotatably connected to the machine base 1. The flipping driving member is arranged on the machine base 1, and the flipping driving member is used to drive the flipping table 31 to flip. The rotating mechanism includes a fixture table 32 and a first rotating driving member. The fixture table 32 is rotatably connected to the flipping table 31. The first rotating driving member is arranged on the fixture table 32, and the first rotating driving member is used to drive the fixture table 32 to rotate. The cradle-type turntable device 3 is used to realize the adjustment of two rotational degrees of freedom of the workpiece during the processing process, so as to ensure that the workpiece can be processed according to the predetermined angle and position.

[0046] Reference Figure 3 and Figure 4The automatic tool changing device 4 includes a tool changing base 41, a tool slide seat 42, a tool changing drive mechanism, a tool holder 43, a tool magazine transmission mechanism 44 and a tool changing manipulator. The tool changing base 41 is arranged on the machine base 1 of the machine base 1, and the specific tool changing base 41 is fixed in the second cavity 12. The tool slide seat 42 is slidably matched with the tool changing base 41, and the tool changing drive mechanism is arranged on the tool changing base 41, and the tool changing drive mechanism is used to drive the tool slide seat 42 to slide along the first direction. The tool changing drive mechanism can be a cylinder, a hydraulic cylinder or an electric cylinder, and each driving method has its applicable scenario. The tool holder 43 is arranged on the tool slide seat 42 to support and fix the tool. The tool holder 43 can adopt a modular structure for easy replacement and maintenance. The tool holder 43 can also be equipped with a sensor for detecting the state of the tool, such as the degree of wear, temperature, etc., and timely feedback to the control system to improve the accuracy and reliability of tool change.

[0047] Reference Figure 4 The tool magazine transmission mechanism 44 includes a transmission member 441, a second rotating driving member 442 and a plurality of tool holders 443. The transmission member 441 is arranged around the tool holder 43, the transmission member 441 is rotatably connected to the tool holder 43, and a plurality of tool holders 443 are fixed on the transmission member 441 at equal intervals. The second rotating driving member 442 is arranged on the tool holder 43, and is used to drive the transmission member 441 to rotate, thereby driving the transmission member 441 and the tool holder 443 to move in a circular motion. The second rotating driving member 442 can select a servo motor or a stepper motor, both of which can provide precise control. The tool changing manipulator is arranged on the tool holder 43, and is used to grab, carry and install the tool. The tool changing manipulator can be driven by pneumatic or electric drive, the pneumatic drive has a fast response, and the electric drive has a high control accuracy. The tool changing manipulator adopts a multi-joint structure, and each joint can be independently controlled, making the tool changing action more flexible and precise. The tool changing manipulator can also be equipped with a visual recognition system to identify the position and state of the tool to ensure the accuracy of the tool change.

[0048] Reference Figure 2 and Figure 3 In the five-axis linkage high-speed and high-precision machining center, a first protective cover 5 is arranged between the automatic tool changing device 4 and the cradle-type turntable device 3. The first protective cover 5 is used to protect the cradle-type turntable device 3 from the influence of debris and dust that may be generated during the tool changing process, so as to ensure its continuous and stable operation.

[0049] Reference Figure 2 , Figure 3 and Figure 5The first protective cover 5 includes an isolation plate 51 and two mutually parallel side plates 52, wherein the isolation plate 51 is located between the automatic tool changing device 4 and the cradle-type turntable device 3, forming an effective barrier to prevent the entry of debris and dust. The two mutually parallel side plates 52 are respectively located on both sides of the isolation plate 51, and one end of each side plate 52 is fixedly connected to the isolation plate 51, together forming the frame of the first protective cover 5. The two side plates 52 not only enhance the stability of the first protective cover 5, but also further prevent debris and dust from invading from the side. The isolation plate 51 and the two side plates 52 are respectively fixed on the three inner side walls of the first cavity 11. This fixing method not only ensures the stability of the first protective cover 5, but also facilitates subsequent maintenance and replacement.

[0050] Reference Figure 5 A guide hole for the tool change manipulator to pass through is opened on the isolation plate 51. The size of the guide hole fully considers the movement trajectory and size of the tool change manipulator, ensuring that the manipulator can smoothly and accurately complete the tool change action without destroying the integrity of the first protective cover 5.

[0051] Continue to refer to Figure 5 , an automatic door device 6 is provided on the isolation plate 51, and the automatic door device 6 includes two first safety gates 61 and two first sliding driving members 62. The two first safety gates 61 slide and cooperate with the first protective cover 5, and the first sliding driving member 62 is used to drive the first safety gates 61 to slide toward or away from the lead-in port, thereby realizing automatic blocking and opening of the lead-in port. The first sliding driving member 62 can be a cylinder, a hydraulic cylinder or an electric cylinder, and each method has its advantages and disadvantages. Here, the first sliding driving member 62 selects a cylinder, because the cylinder has a low cost and a fast reaction speed, and is particularly suitable for fast switching operations.

[0052] Reference Figure 1 A protective shell 7 is provided on the outside of the machine base 1, and the protective shell 7 is opened on one side facing the cradle-type turntable device 3. The protective shell 7 not only protects the internal structure of the machine tool and the operator, but also facilitates the operator to perform necessary maintenance and adjustments.

[0053] Reference Figure 1 and Figure 3A safety door device 8 is provided on the protective housing 7, and the safety door device 8 includes a mounting seat 81, two second safety gates 82 and two second sliding driving members 83, wherein the mounting seat 81 is fixed to the top of the machine base 1, and the two second safety gates 82 are both slidably matched with the protective housing 7, and the two second sliding driving members 83 are both provided on the mounting seat 81, and the second sliding driving members 83 correspond to the second safety gates 82 one by one, and each second sliding driving member 83 is used to drive the second safety gate 82 to slide, thereby realizing the automatic opening and closing of the operating opening. The second sliding driving member 83 can select a cylinder, a hydraulic cylinder or an electric cylinder, and each method has its applicable scenario.

[0054] Reference Figure 3 A first slide rail protective cover 53 is provided on the top of the first cavity 11 to prevent the operator or other objects from accidentally contacting possible dangerous areas or moving parts, thereby improving the safety of the overall equipment.

[0055] Continue to refer to Figure 3 Second chain guards 24 are provided on both sides of the second sliding seat 22, one end of each second chain guard 24 close to the second sliding seat 22 is connected to the side wall of the second sliding seat 22, and the other end of each second chain guard 24 is connected to the end of the second sliding seat 22. Not only the side wall of the sliding seat is protected, but also the safety of the end of the sliding seat is ensured, further reducing the occurrence of accidents.

[0056] Reference Figure 2 and Figure 3 The processing also includes a control system, which is electrically connected to the three-axis mobile module 2, the spindle device 9, the cradle-type turntable device 3 and the automatic tool changing device 4. It is used to control the three-axis mobile module 2 to drive the spindle device 9 to move precisely in the three directions of the X\Y\Z axes, to control the spindle device 9 to rotate and / or feed to perform cutting, drilling, milling and other processing operations, to control the cradle-type turntable device 3 to adjust the two rotational degrees of freedom of the workpiece, and to control the automatic tool changing device 4 to automatically replace the tool on the spindle device 9, so as to realize the automation and high-precision control of the processing process.

[0057] The implementation principle of this embodiment is as follows: First, the base 1, as the supporting structure of the entire machining center, adopts an integrated high-specification cast iron structure, which not only provides sufficient strength and rigidity, but also improves the reliability and service life of the equipment. The three-axis moving module 2 is arranged on the top of the base 1. Through the precise cooperation of the first sliding seat 21, the first driving mechanism, the second sliding seat 22, the second driving mechanism, the lifting seat 23 and the lifting driving mechanism, the spindle device 9 is precisely moved in the three directions of the X, Y and Z axes. It is ensured that the spindle device 9 can move according to the predetermined trajectory and speed, so as to meet the needs of various complex machining tasks. The spindle device 9, as the core component for performing machining operations, includes at least one rotatable and / or feed spindle, which can perform cutting, drilling, milling and other machining operations. The driving mode of the spindle can select a servo motor to ensure high precision and stability during the machining process. The cradle-type turntable device 3 is arranged in the first cavity 11 of the base 1. Through the precise cooperation of the flipping mechanism and the rotating mechanism, the adjustment of the two rotational degrees of freedom of the workpiece during the machining process is realized. The workpiece can be processed according to the predetermined angle and position, thereby meeting the processing requirements of various complex shapes and angles. The automatic tool changing device 4 is arranged in the second cavity 12 of the machine base 1. Through the precise cooperation of the tool changing base 41, the tool slide rail seat 42, the tool changing drive mechanism, the tool holder 43, the tool magazine transmission mechanism 44 and the tool changing manipulator, the tool on the spindle device 9 can be quickly and accurately replaced. It not only improves the processing efficiency, but also ensures the continuity and stability of the processing process. Finally, through the electrical connection between the control system and the three-axis mobile module 2, the spindle device 9, the cradle-type turntable device 3 and the automatic tool changing device 4, the automation and high-precision control of the entire processing process are realized. The control system can accurately control the movement and state of each component according to the predetermined processing program and parameters, thereby ensuring the stability and accuracy of the processing process.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A five-axis linkage high-speed and high-precision machining center, characterized by: The invention comprises a machine base (1), wherein a three-axis movable module (2) and a spindle device (9) are arranged on the top of the machine base (1), wherein the three-axis movable module (2) is used to drive the spindle device (9) to move along three different directions of the X, Y and Z axes, and the spindle device (9) comprises at least one spindle that can rotate and / or feed, and is used to perform machining operations such as cutting, drilling and milling on a workpiece; and a cradle-type turntable (3) and an automatic tool changing device (4) are arranged on the bottom of the machine base (1), wherein the cradle-type turntable (3) is used to realize the adjustment of two rotational degrees of freedom of the workpiece during the machining process, and the automatic tool changing device (4) is used to automatically replace the tool on the spindle device (9).

2. A five-axis linkage high-speed and high-precision machining center according to claim 1, characterized in that: The three-axis moving module (2) comprises a first sliding seat (21), a first driving mechanism, a second sliding seat (22) and a second driving mechanism, a lifting seat (23) and a lifting driving mechanism. The first sliding seat (21) is slidingly matched with the machine base (1), and the first driving mechanism is used to drive the first sliding seat (21) to slide along a first direction; the second sliding seat (22) is slidingly matched with the first sliding seat (21), and the second driving mechanism is used to drive the second sliding seat (22) to slide along a second direction; the lifting seat (23) is slidingly matched with the second sliding seat (22), and the lifting driving mechanism is used to drive the lifting seat (23) to rise and fall. The spindle device (9) is arranged on the lifting seat (23).

3. A five-axis linkage high-speed and high-precision machining center according to claim 2, characterized in that: The machine base (1), the first sliding seat (21) and the second sliding seat (22) are all integrated structures. The machine base (1) is provided with a first cavity (11) and a second cavity (12) which are interconnected. The cradle-type turntable device (3) is located in the first cavity (11), and the automatic tool changing device (4) is located in the second cavity (12).

4. The five-axis linkage high-speed and high-precision machining center according to claim 1, characterized in that: The cradle-type turntable device (3) comprises a turning mechanism and a rotating mechanism, wherein the turning mechanism comprises a turning table (31) and a turning driving member, wherein the turning table (31) is rotationally connected to the machine base (1), and the turning driving member is used to drive the turning table (31) to turn over; and the rotating mechanism comprises a clamping table (32) and a first rotating driving member, wherein the clamping table (32) is rotationally connected to the turning table (31), and the first rotating driving member is used to drive the clamping table (32) to rotate.

5. The five-axis linkage high-speed and high-precision machining center according to claim 1, characterized in that: The automatic tool changing device (4) comprises a tool changing base (41), a tool slide rail seat (42), a tool changing driving mechanism, a tool holder (43) and a tool magazine transmission mechanism (44); the tool changing base (41) is arranged on the machine base (1), the tool slide rail seat (42) and the tool changing base (41) are slidably matched, and the tool changing driving mechanism is used to drive the tool slide rail seat (42) to slide in a first direction; the tool holder (43) is arranged on the tool slide rail seat (42); the tool magazine transmission mechanism (44) comprises a transmission member (441) , a second rotating driving member (442) and a plurality of tool clamps (443), the transmission member (441) is arranged around the tool holder (43), the transmission member (441) is rotatably connected to the tool holder (43), and a plurality of tool clamps (443) are arranged on the transmission member (441) at equal intervals; the second rotating driving member 442 is arranged on the tool holder 43, and the second rotating driving member (442) is used to drive the transmission member (441) to operate, thereby driving the plurality of tool clamps (443) to move in a circle at the same time.

6. The five-axis linkage high-speed and high-precision machining center according to claim 1, characterized in that: A first protective cover (5) is arranged between the automatic tool changing device (4) and the cradle-type turntable device (3); the first protective cover (5) is provided with a guide opening for the automatic tool changing device (4) to pass through; and the first protective cover (5) is provided with an automatic door device (6) for automatically opening and closing the guide opening.

7. A five-axis linkage high-speed and high-precision machining center according to claim 6, characterized in that: The automatic door device (6) comprises a first safety gate (61) and a first sliding drive member (62), wherein the first safety gate (61) is slidably matched with the first protective cover (5), and the first sliding drive member (62) is used to drive the first safety gate (61) to slide in a direction close to or away from the lead-in opening.

8. The five-axis linkage high-speed and high-precision machining center according to claim 7, characterized in that: A protective shell (7) is arranged outside the machine base (1), and a safety door device (8) is arranged on the protective shell (7). The safety door device (8) comprises a mounting seat (81), a second safety gate (82) and a second sliding drive member (83). The mounting seat (81) is fixed to the top of the machine base (1), the second safety gate (82) is slidingly matched with the mounting seat (81), and the second sliding drive member (83) is arranged on the mounting seat (81), and the second sliding drive member (83) is used to drive the second safety gate (82) to slide.

9. A five-axis linkage high-speed and high-precision machining center according to claim 8, characterized in that: A first slide rail type protective cover (53) is arranged between the mounting seat (81) and the first sliding seat (21); one end of the first slide rail type protective cover (53) is connected to the mounting seat (81), and the other end of the first slide rail type protective cover (53) is connected to the first sliding seat (21).

10. The five-axis linkage high-speed and high-precision machining center according to claim 1, characterized in that: The machining center also includes a control system, which is electrically connected to the three-axis moving module (2), the spindle device (9), the cradle-type turntable device (3) and the automatic tool changing device (4), and is used to control the three-axis moving module (2) to drive the spindle device (9) to move precisely along the three directions of the X, Y and Z axes, to control the spindle device (9) to rotate and / or feed to perform machining operations such as cutting, drilling and milling, to control the cradle-type turntable device (3) to adjust the two rotational degrees of freedom of the workpiece, and to control the automatic tool changing device (4) to automatically replace the tool on the spindle device (9).

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