Multi-head machining center

Abstract

The invention relates to the field of machining equipment, in particular to a multi-head machining center. The multi-head machining center comprises a rack, a workpiece bearing table, a machining device, a sliding device, a tool magazine device, an isolation door and a pushing base. Through cooperative work of the transverse moving mechanism, the lifting mechanism and the machining main shaft, precise positioning and efficient machining of a workpiece are achieved. Meanwhile, by means of the sliding device and the pushing base, the safety isolation and automatic switching functions of the tool magazine device and the machining area are achieved, and the operation safety and the production efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing equipment, and in particular to a multi-head machining center. Background Art

[0002] A multi-head machining center refers to a CNC machine tool that integrates multiple machining heads and linkage technology, and can complete multi-sided machining of complex parts in one clamping.

[0003] Related technology multi-head machining center, including a workpiece carrying table, a first translation device is symmetrically fixed to the upper surface of the workpiece carrying table, two movable ends of the first translation devices are fixed with mounting frames, a second translation device is fixed in the middle of the mounting frames, and the first translation device and the second translation device have the same structure, a sliding frame is fixed to the movable end of the second translation device, a third translation device is fixed to one side of the sliding frame, an L-shaped mounting plate is fixed to one side of the third translation device, a cutting motor is equidistantly fixed to one side of the L-shaped mounting plate, an output end of the cutting motor is fixed with a pneumatic chuck through the L-shaped mounting plate, and a tool changing mechanism is equidistantly fixed to one end of the cutting motor of the L-shaped mounting plate.

[0004] The tool changing mechanism in the related art has a complex structure and contains multiple precision parts, such as a grooved wheel mechanism, an internal hexagonal rotating cylinder, a hexagonal sliding column, etc. These parts require high processing and assembly precision, which increases the manufacturing cost and maintenance difficulty. Due to the complex structure of the tool changing mechanism, multiple parts need to work together during the tool changing process, resulting in a long tool changing time and reducing the overall processing efficiency. Summary of the invention

[0005] In order to overcome the defects of the prior art, the present application provides a multi-head machining center.

[0006] The multi-head machining center provided in this application adopts the following technical solution: A multi-head machining center, comprising a frame, a workpiece bearing platform, a machining device, a sliding device, a tool magazine device, an isolation door, and a push seat; the workpiece bearing platform is arranged on the frame; the machining device comprises a transverse movement mechanism, at least one lifting mechanism and at least one machining spindle, the transverse movement mechanism is arranged on the frame, the transverse movement mechanism is used to drive the lifting mechanism to move along the X-axis direction, the lifting mechanism is used to drive the machining spindle to rise and fall, and the machining spindle is close to the workpiece bearing platform; the sliding device comprises a sliding seat and a sliding drive mechanism, the sliding drive mechanism is arranged on the frame, The sliding drive mechanism is used to drive the sliding seat to move along the Y-axis direction; the tool magazine device includes a plurality of tool magazine mechanisms, and the plurality of tool magazine mechanisms are all arranged on the sliding seat; the isolation door is located between the tool magazine device and the processing device, and the top of the isolation door is rotatably connected to the frame; the pushing seat is arranged on the sliding seat, and when the sliding seat moves toward the direction approaching the workpiece supporting platform, the pushing seat pushes the isolation door to open; when the sliding seat moves toward the direction away from the workpiece supporting platform, the pushing seat abuts against the isolation door and causes it to gradually rotate to a vertically closed state.

[0007] By adopting the above technical solution, the processing device can flexibly move along the X-axis direction on the frame, and adjust the height of the processing spindle through the lifting mechanism to meet the processing requirements of different workpieces. The sliding device is responsible for driving the tool magazine device to move along the Y-axis direction to facilitate rapid switching of tools. When the sliding seat moves toward the workpiece carrier, the push seat will push open the isolation door to provide a channel for tool replacement; when the sliding seat is away from the workpiece carrier, the push seat will abut against the isolation door, causing it to automatically rotate back to the vertical closed state, effectively isolating the processing area from the tool magazine area, and ensuring safe operation. It not only simplifies the complex structure of the traditional tool changing mechanism and reduces the use of precision components, thereby reducing manufacturing costs and maintenance difficulties, but also significantly shortens the tool change time and improves the overall processing efficiency.

[0008] Optionally, the pushing seat includes a supporting member and a pushing member, the top end of the supporting member is fixedly connected to the pushing member, and the bottom end of the supporting member is fixedly connected to the sliding seat.

[0009] By adopting the above technical solution, the pusher seat is composed of a support member and a pusher member. The support member is firmly connected to the sliding seat, providing a solid foundation for it; and the pusher member is fixed to the top of the support member, becoming a key component for pushing the isolation door to open and close. When the sliding seat moves along the Y-axis direction under the action of the driving mechanism, the pusher member moves accordingly, and can accurately control the opening and closing of the isolation door, which not only ensures the smooth progress of the tool replacement process, but also effectively maintains the safe isolation of the processing area.

[0010] Optionally, the pushing member includes an inclined push block and a horizontal push block, the inclined push block is inclined, the top of the inclined push block is fixedly connected to one end of the horizontal push block, and the top of the supporting member is fixedly connected to the inclined push block or the horizontal push block.

[0011] By adopting the above technical solution, the pusher combines the inclined push block and the horizontal push block. The inclined push block, with its inclined angle, can naturally guide the isolation door to gradually open when the sliding seat moves, while the horizontal push block ensures that the isolation door can smoothly and accurately rotate to a vertical closed state when the push seat returns. It not only improves the smoothness and stability of the opening and closing of the isolation door, but also effectively reduces mechanical wear and extends the service life of the equipment. At the same time, the combined use of the inclined push block and the horizontal push block makes the overall structure of the push seat more compact and reasonable, further enhances the flexibility and adaptability of the machining center, and brings users a more efficient, convenient and safe processing operation experience.

[0012] Optionally, the support member includes a support block and a fixed block, the top end of the support block is fixedly connected to the horizontal push block, and the bottom end of the support block is fixedly connected to the fixed block.

[0013] By adopting the above technical solution, the fixed block is firmly connected to the sliding seat, providing a solid foundation for the entire push seat; the support block is vertically connected to the fixed block, and its top is closely connected to the horizontal push block, forming a stable support structure. The inclined push block guides the isolation door to open naturally when the sliding seat moves, while the horizontal push block ensures that the isolation door can rotate smoothly and accurately to the closed state when the push seat returns. It not only improves the smoothness and stability of the isolation door operation, but also effectively reduces the wear of mechanical parts and extends the service life of the equipment.

[0014] Optionally, an adjustment groove is provided on the fixing block, the adjustment groove extends in a horizontal direction, a bolt is passed through the adjustment groove, and the bolt is threadably matched with the sliding seat.

[0015] By adopting the above technical solution, the adjustment slot extends in the horizontal direction, allowing the bolt to flexibly adjust its position in the slot, and through the cooperation with the thread of the sliding seat, the precise installation and positioning of the push seat on the sliding seat is realized. Not only the connection stability between the push seat and the sliding seat is enhanced, but also the user can easily adjust the position of the push seat according to actual needs to adapt to the processing needs of workpieces of different sizes and shapes.

[0016] Optionally, a plurality of bearings are rotatably arranged on the support member, and the highest point of the bearings is higher than the highest point of the pushing member.

[0017] By adopting the above technical solution, the highest point of these bearings is higher than the highest point of the pusher, which effectively plays a role of protection and support. When the push seat moves under the drive of the sliding seat, the bearings can reduce friction and resistance, making the movement of the push seat more stable and smooth. At the same time, it also enhances the durability and stability of the push seat and extends the service life of the equipment.

[0018] Optionally, the transverse movement mechanism includes a transverse movement seat and a transverse movement driving assembly 32, wherein the transverse movement driving assembly is disposed on the frame, and the transverse movement driving assembly is used to drive the transverse movement seat to move along the X-axis direction.

[0019] By adopting the above technical solution, the transverse mechanism includes a transverse seat and a transverse drive assembly. The transverse drive assembly is firmly mounted on the frame and can accurately drive the transverse seat to move along the X-axis direction, thereby realizing flexible positioning of the machining spindle in the horizontal direction. It not only improves the machining accuracy and efficiency, but also enhances the adaptability of the equipment, enabling it to easily cope with the machining needs of workpieces of various complex shapes. At the same time, the push seat includes a support, a pusher, an adjustment slot and a bearing, which further improves the stability and durability of the equipment and ensures the smoothness and safety of the opening and closing of the isolation door.

[0020] Optionally, a first guide rail is fixedly provided on the top of the frame, the first guide rail extends along the X-axis direction, and a first slider is fixedly provided on the lower surface of the transverse shift seat; the first guide rail passes through the first slider, and the first slider slides with the first guide rail; a second guide rail is fixedly provided on the side wall of the frame, the second guide rail extends along the X-axis direction, a second slider is fixedly provided on the side wall of the transverse shift seat, the second guide rail passes through the second slider, and the second slider slides with the second guide rail.

[0021] By adopting the above technical solution, since the size and mass of the transverse shift seat are large, and the support of the transverse shift seat is achieved only by the action of the guide rail and the slider, the two guide rails and the two sliders in the related technology are all arranged on the side wall of the frame, and there is no guide rail and slider on the top of the frame. Therefore, the transverse shift seat may easily shake or tilt due to the lack of support on the top under the action of its own gravity, thereby affecting the positioning accuracy and processing quality of the processing spindle; while the first guide rail and the first slider in the present application not only provide additional support for the transverse shift seat, but also effectively limit the shaking of the transverse shift seat in the vertical direction, thereby enhancing its stability. At the same time, the second guide rail and the second slider on the side wall of the frame continue to assume the task of guiding the transverse shift seat to move precisely along the X-axis direction. The double guide rails and sliders make the transverse shift seat stable and precise during the movement, effectively avoiding processing errors caused by shaking or tilting.

[0022] Optionally, the lifting mechanism includes a lifting seat and a lifting drive assembly, the lifting seat is slidably matched with the transverse seat, the lifting drive assembly is arranged on the transverse seat, the lifting drive assembly is used to drive the lifting seat to rise and fall, and the machining spindle is arranged on the lifting seat.

[0023] By adopting the above technical solution, the lifting mechanism combines the sliding cooperation of the lifting seat and the traverse seat to ensure the stability and smoothness of the lifting action. The lifting drive assembly is installed on the traverse seat. As a power source, it accurately controls the up and down movement of the lifting seat. This setting not only optimizes the spatial layout, but also greatly improves the operating efficiency. More importantly, the processing spindle is firmly set on the lifting seat. With the precise lifting and lowering of the lifting seat, the processing spindle can accurately reach the predetermined working height, thus meeting the high requirements of accuracy and flexibility for complex processing tasks.

[0024] Optionally, a longitudinal driving mechanism is also provided on the machine base, and the longitudinal driving mechanism is used to drive the workpiece supporting platform to move along the Y-axis direction.

[0025] By adopting the above technical solution, the lifting mechanism ensures that the machining spindle can achieve stable and accurate lifting and lowering movement in the vertical direction through the sliding cooperation between the lifting seat and the traverse seat, as well as the precise driving of the lifting drive assembly. At the same time, the workpiece carrier can be flexibly moved along the Y-axis direction under the drive of the longitudinal drive mechanism equipped on the machine base, which not only broadens the processing range, but also further improves the processing efficiency and accuracy.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the precise coordination of the traverse mechanism and the lifting mechanism, the machining spindle can achieve flexible and precise movement in the X-axis and Z-axis directions, thus easily meeting the machining needs of workpieces of various complex shapes. At the same time, the workpiece carrier can move freely along the Y-axis direction driven by the longitudinal drive mechanism, further broadening the machining range and significantly improving machining efficiency and precision; 2. An isolation door is set between the tool magazine device and the processing device, and the isolation door is automatically opened and closed through the push seat. When the sliding seat moves, the push seat can push open the isolation door to provide a convenient channel for tool replacement; and when the sliding seat returns, the push seat abuts against the isolation door, causing it to automatically rotate back to the vertical closed state, effectively isolating the processing area from the tool magazine area and ensuring operational safety. It not only simplifies the complex structure of the traditional tool changing mechanism, reduces manufacturing costs and maintenance difficulties, but also significantly shortens the tool changing time and improves the overall processing efficiency; 3. Both the traverse mechanism and the lifting mechanism use double guide rails and sliders to provide stable support and guidance for the traverse seat and the lifting seat, effectively avoiding processing errors caused by shaking or tilting. At the same time, the multiple bearings rotating on the push seat also play a role of protection and support, reducing friction and resistance, making the movement of the push seat more stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the multi-head machining center from the first perspective in Example 1 of the present application.

[0028] Figure 2 It is a structural schematic diagram of the second viewing angle of the multi-head machining center in Examples 1 and 3 of the present application.

[0029] Figure 3 It is a structural schematic diagram of the multi-head machining center from the third perspective in Example 1 of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the push seat in Examples 1 and 2 of the present application.

[0031] Description of reference numerals: 1. Frame; 11. First guide rail; 12. Second guide rail; 13. Moving channel; 2. Workpiece carrier; 3. Transverse movement mechanism; 31. Transverse movement seat; 32. Transverse movement drive assembly; 33. First slider; 34. Second slider; 4. Lifting mechanism; 41. Lifting seat; 42. Lifting drive assembly; 5. Processing spindle; 6. Sliding device; 61. Sliding seat; 62. Sliding drive mechanism; 7. Tool magazine device; 8. Isolation door; 9. Pushing seat; 91. Support member; 911. Support block; 912. Fixed block; 913. Adjustment slot; 92. Pushing member; 921. Tilting push block; 922. Horizontal push block; 93. Bearing; 10. Longitudinal drive mechanism. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] 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.

[0034] For ease of understanding, in the horizontal direction of this embodiment, the moving direction of the transverse seat is defined as the X-axis direction, and the moving direction of the sliding seat is defined as the Y-axis direction, and the multi-head machining center is explained based on this.

[0035] Example 1 The present application embodiment provides a multi-head machining center, referring to Figure 1 and Figure 2 The multi-head machining center includes a frame 1, a workpiece carrier 2, a machining device, a sliding device 6, a tool magazine device 7, an isolation door 8, and a push seat 9. The workpiece carrier 2 is arranged on the frame 1. The machining device includes a transverse mechanism 3, a lifting mechanism 4, and at least one machining spindle 5. The transverse mechanism 3 is arranged on the frame 1. The transverse mechanism 3 is used to drive the lifting mechanism 4 to move along the X-axis direction. The lifting mechanism 4 is used to drive the machining spindle 5 to move up and down. The machining spindle 5 is close to the workpiece carrier 2. A moving channel 13 is opened in the middle position of the frame. The moving channel 13 extends along the Y-axis direction, and both ends of the moving channel 13 are opened. The sliding device 6 is arranged in the moving channel 13. The sliding device 6 includes a first sliding seat 61 and a first driving mechanism. The first driving mechanism is arranged on the frame 1. The first driving mechanism is used to drive the first sliding seat 61 to move along the Y-axis direction; the tool magazine device 7 includes a plurality of tool magazine mechanisms, and the plurality of tool magazine mechanisms are all arranged on the first sliding seat 61. The isolation door 8 is located between the tool magazine device 7 and the processing device, and the top of the isolation door 8 is rotatably connected to the frame 1; the push seat 9 is arranged on the first sliding seat 61, and when the first sliding seat 61 moves toward the direction close to the workpiece bearing platform 2, the push seat 9 pushes the isolation door 8 to open. When the first sliding seat 61 moves toward the direction away from the workpiece bearing platform 2, the push seat 9 abuts against the isolation door 8 and gradually rotates it to a vertical closed state, thereby achieving the effect of simplifying the tool changing mechanism structure, reducing manufacturing costs and maintenance difficulties, shortening tool changing time, and improving overall processing efficiency.

[0036] Reference Figure 1 Specifically, the transverse mechanism 3 includes a transverse seat 31 and a transverse drive assembly 32. The transverse seat 31 is slidably matched with the frame 1. The transverse drive assembly 32 is arranged on the frame 1. The transverse drive assembly 32 is used to drive the transverse seat 31 to move along the X-axis direction. Four lifting mechanisms are arranged on the transverse seat 31. The number of lifting mechanisms 4 and the processing spindle 5 are both four. The lifting mechanisms 4 correspond to the processing spindle one by one. The lifting mechanisms 4 are used to drive the processing spindle 5 to rise and fall. The transverse seat 31 can be made of aluminum alloy or high-strength steel, and is light and strong. The transverse drive assembly 32 can be a servo motor with a ball screw, or a hydraulic cylinder or other linear drive.

[0037] Reference Figure 3, a first guide rail 11 is fixedly provided on the top of the frame 1, and the first guide rail 11 extends along the X-axis direction. A plurality of first sliders 33 are fixedly provided on the lower surface of the transverse shift seat 31, and the first guide rail 11 passes through the plurality of first sliders 33 in sequence, and the plurality of first sliders 33 are all slidably matched with the first guide rail 11. In addition, a second guide rail 12 is fixedly provided on the side wall of the frame 1 close to the transverse shift seat 31, and the second guide rail 12 extends along the X-axis direction. A plurality of second sliders 34 are fixedly provided on the side wall of the transverse shift seat 31 close to the frame 1, and the second guide rail 12 passes through the plurality of second sliders 34 in sequence, and the plurality of second sliders 34 are all slidably matched with the second guide rail 12. The first guide rail 11 and the first slider 33 not only provide additional support force for the transverse shift seat 31, but also effectively limit the shaking of the transverse shift seat 31 in the vertical direction, thereby enhancing its stability. At the same time, the second guide rail 12 and the second slider 34 on the side wall of the frame 1 continue to undertake the task of guiding the transverse shift seat 31 to move precisely along the X-axis direction. The double guide rails and sliders make the transverse shift seat 31 stable and precise during movement, effectively avoiding processing errors caused by shaking or tilting. The first guide rail 11 and the second guide rail 12 not only enhance the stability of the transverse shift seat 31, but also effectively prevent the shaking phenomenon that may be caused by the dual guide rails being simultaneously arranged on the side walls of the frame.

[0038] Reference Figure 1 The lifting mechanism 4 includes a lifting seat 41 and a lifting drive assembly 42. The lifting seat 41 can slide with the traverse seat 31 through a nut pair or a linear slide rail to ensure stability and accuracy during the lifting process. The lifting drive assembly 42 can be a motor screw structure, which drives the lifting seat 41 to move up and down through a worm gear transmission or a gear rack transmission. The processing spindle 5 is installed on the lifting seat 41 and can be adjusted to a suitable height according to the requirements of different processing tasks.

[0039] Reference Figure 2 The sliding device 6 includes a sliding seat 61 and a sliding drive mechanism 62. The sliding seat 61 is slidingly arranged in the moving channel 13 of the frame 1, and the sliding drive mechanism 62 is arranged in the moving channel 13 of the frame 1. The sliding drive mechanism 62 is used to drive the sliding seat 61 to move along the Y-axis direction. The sliding seat 61 can also be made of aluminum alloy or high-strength steel, which has good rigidity and durability. The sliding drive mechanism 62 can be a motor screw structure or a cylinder or a hydraulic cylinder, which is used to drive the sliding seat 61 to move along the Y-axis direction. A guide wheel can also be set at the bottom of the sliding seat 61 to reduce friction and improve the stability of movement.

[0040] Reference Figure 2The tool magazine device 7 includes four tool magazine mechanisms 71, which are evenly distributed on the sliding seat 61. Each tool magazine mechanism 71 can be an independent storage unit, and multiple storage positions are provided inside for placing different types of tools. The tool magazine mechanism 71 can realize automatic removal and insertion of tools through an electric push rod or a cylinder, which greatly improves the tool change speed and reliability.

[0041] Reference Figure 1 and Figure 2 , the isolation door 8 is located between the tool magazine device 7 and the processing device, and its top is connected to the frame 1 by a hinge, and can rotate freely within a certain range. The material of the isolation door 8 can be transparent organic glass or tempered glass, which can not only ensure the safety of the operator, but also facilitate observation of the internal situation. In the present embodiment, the number of the push seats 9 is two, and the two push seats 9 are both arranged on the sliding seat 61, and each push seat 9 is located between two adjacent tool magazine mechanisms 71. When the sliding seat 61 moves toward the direction close to the workpiece carrier 2, the push seat 9 will push the isolation door 8 to open. On the contrary, the isolation door 8 will gradually rotate to a vertically closed state.

[0042] Reference Figure 2 and Figure 4 The push seat 9 is composed of a support member 91 and a push member 92. The top end of the support member 91 is fixedly connected to the push member 92, and the bottom end of the support member 91 is fixedly connected to the sliding seat 61. The support member 91 can be a steel pipe or a cast iron part, which has sufficient strength and rigidity.

[0043] Reference Figure 4 The support member 91 includes a support block 911 and a fixed block 912. The top of the support block 911 is fixedly connected to the horizontal push block 922, and the bottom of the support block 911 is fixedly connected to the fixed block 912. The fixed block 912 is firmly connected to the sliding seat 61, providing a solid foundation for the entire push seat 9; the support block 911 is vertically connected to the fixed block 912, and its top is closely connected to the horizontal push block 922, forming a stable support structure. In the process of moving with the sliding seat 61, the inclined push block 921 guides the isolation door 8 to open naturally when the sliding seat 61 moves, and the horizontal push block 922 ensures that the isolation door 8 can be smoothly and accurately rotated to a closed state when the push seat 9 returns. It not only improves the smoothness and stability of the operation of the isolation door 8, but also effectively reduces the wear of mechanical parts and extends the service life of the equipment.

[0044] The fixing block 912 is provided with an adjustment slot 913, which extends in the horizontal direction. A bolt is inserted into the adjustment slot 913, and the bolt is threadedly engaged with the sliding seat 61. The adjustment slot 913 extends in the horizontal direction, allowing the bolt to flexibly adjust its position in the slot, and by engaging with the thread of the sliding seat 61, the push seat 9 is accurately installed and positioned on the sliding seat 61. This not only enhances the connection stability between the push seat 9 and the sliding seat 61, but also enables the user to easily adjust the position of the push seat 9 according to actual needs to meet the processing needs of workpieces of different sizes and shapes. The push member 92 includes an inclined push block 921 and a horizontal push block 922. The inclined push block 921 is inclined, and its top end is fixedly connected to one end of the horizontal push block 922. The top end of the support member 91 can be fixedly connected to the inclined push block 921 or the horizontal push block 922. When the sliding seat 61 moves, the push seat 9 can naturally guide the isolation door 8 to open or close gradually, which not only ensures the safety of operation, but also reduces mechanical wear and prolongs the life of the equipment.

[0045] The implementation principle of this embodiment is: through the precise cooperation of the transverse movement mechanism 3 and the lifting mechanism 4, the processing spindle 5 can realize flexible and precise movement in the X-axis and Z-axis directions, so as to easily cope with the processing needs of workpieces of various complex shapes. At the same time, the workpiece carrier 2 can move freely along the Y-axis direction under the drive of the longitudinal drive mechanism 10, further broadening the processing range and significantly improving the processing efficiency and accuracy. An isolation door 8 is set between the tool magazine device 7 and the processing device, and the isolation door 8 is automatically opened and closed by the push seat 9, which simplifies the complex structure of the traditional tool changing mechanism, reduces the manufacturing cost and maintenance difficulty, significantly shortens the tool changing time, and improves the overall processing efficiency.

[0046] Example 2 Reference Figure 4 The difference between this embodiment and the first embodiment is that, in order to further improve the reliability and safety of the machining center, a plurality of bearings 93 are added to the push seat 9 in this embodiment, and the highest points of these bearings 93 are higher than the highest points of the push members 92. These bearings 93 can be deep groove ball bearings 93 or needle bearings 93, which can not only reduce the friction and resistance generated by the push seat 9 during the movement, but also enhance the durability and stability of the push seat 9, and extend the service life of the equipment.

[0047] In addition, in this embodiment, an adjustment slot 913 is provided on the fixing block 912. The adjustment slot 913 extends in the horizontal direction and is provided with a bolt, which is threadedly engaged with the sliding seat 61. The user can easily adjust the position of the push seat 9 according to actual needs to adapt to the processing needs of workpieces of different sizes and shapes. The adjustment slot 913 makes the installation of the push seat 9 more flexible and also enhances the connection stability between the push seat 9 and the sliding seat 61.

[0048] The implementation principle of this embodiment is: by adding bearings 93 and adjustment slots 913, the movement of the push seat 9 on the sliding seat 61 is more stable and smooth, and at the same time has higher flexibility and adaptability. The effective use of bearings 93 reduces the wear of mechanical parts and extends the service life of the equipment; the adjustment slots 913 make the installation position of the push seat 9 more flexible and meet the needs of different processing scenarios. These improvement measures not only improve the reliability and safety of the equipment, but also further optimize the overall processing process and improve production efficiency.

[0049] Example 3 Reference Figure 2 The difference between this embodiment and embodiment 1 is that, in order to further improve the space utilization and work efficiency of the machining center, this embodiment adds a longitudinal drive mechanism 10 on the frame 1. The longitudinal drive mechanism 10 is mainly used to drive the workpiece carrier 2 to move along the Y-axis direction, thereby expanding the machining area and enabling the machining center to better meet the machining needs of large or complex workpieces.

[0050] Specifically, the longitudinal drive mechanism 10 can be a ball screw system with a servo motor, or a hydraulic cylinder or other forms of linear drive. This system can accurately control the moving distance and speed of the workpiece carrier 2 through controller programming. The workpiece carrier 2 itself can be made of high-strength steel plate, and the surface is rust-proofed to ensure that it is not easy to rust during long-term use. Multiple clamping devices, such as pneumatic clamps or manual clamping plates, can also be set on the workpiece carrier 2 to fix workpieces of different shapes and sizes.

[0051] The implementation principle of this embodiment is as follows: by introducing the longitudinal drive mechanism 10, the workpiece carrier 2 can move freely in the Y-axis direction, further expanding the working range of the machining center. This is particularly beneficial for the machining of large or complex workpieces, and can avoid downtime and labor intensity caused by frequent replacement of workpieces. The longitudinal drive mechanism 10 is combined with the transverse movement mechanism 3 and the lifting mechanism 4 to form a three-dimensional machining platform, which greatly improves the flexibility and adaptability of the machining center, and significantly improves production efficiency and machining quality.

[0052] 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 multi-head machining center, characterized in that: The invention comprises a frame (1), a workpiece bearing platform (2), a processing device, a sliding device (6), a tool magazine device (7), an isolation door (8), and a pushing seat (9); the workpiece bearing platform (2) is arranged on the frame (1); the processing device comprises a transverse movement mechanism (3), at least one lifting mechanism (4) and at least one processing spindle (5); the transverse movement mechanism (3) is arranged on the frame (1); the transverse movement mechanism (3) is used to drive the lifting mechanism (4) to move along the X-axis direction; the lifting mechanism (4) is used to drive the processing spindle (5) to move up and down; the processing spindle (5) is close to the workpiece bearing platform (2); the sliding device (6) comprises a sliding seat (61) and a sliding drive mechanism (62); the sliding drive mechanism (62) is arranged on the frame (1) The sliding drive mechanism (62) is used to drive the sliding seat (61) to move along the Y-axis direction; the tool magazine device (7) includes a plurality of tool magazine mechanisms, and the plurality of tool magazine mechanisms are all arranged on the sliding seat (61); the isolation door (8) is located between the tool magazine device (7) and the processing device, and the top of the isolation door (8) is rotatably connected to the frame (1); the pushing seat (9) is arranged on the sliding seat (61), and when the sliding seat (61) moves in a direction close to the workpiece carrier platform (2), the pushing seat (9) pushes the isolation door (8) to open; when the sliding seat (61) moves in a direction away from the workpiece carrier platform (2), the pushing seat (9) abuts against the isolation door (8) and causes it to gradually rotate to a vertically closed state.

2. A multi-head machining center according to claim 1, characterized in that: The pushing seat (9) comprises a supporting member (91) and a pushing member (92); the top end of the supporting member (91) is fixedly connected to the pushing member (92), and the bottom end of the supporting member (91) is fixedly connected to the sliding seat (61).

3. A multi-head machining center according to claim 2, characterized in that: The pushing member (92) comprises an inclined pushing block (921) and a horizontal pushing block (922); the inclined pushing block (921) is arranged in an inclined manner; the top end of the inclined pushing block (921) is fixedly connected to one end of the horizontal pushing block (922); and the top end of the supporting member (91) is fixedly connected to the inclined pushing block (921) or the horizontal pushing block (922).

4. A multi-head machining center according to claim 3, characterized in that: The support member (91) comprises a support block (911) and a fixed block (912); the top end of the support block (911) is fixedly connected to the horizontal push block (922); and the bottom end of the support block (911) is fixedly connected to the fixed block (912).

5. A multi-head machining center according to claim 4, characterized in that: The fixing block (912) is provided with an adjustment groove (913), the adjustment groove (913) extending in the horizontal direction, a bolt passing through the adjustment groove (913), and the bolt threadably engages with the sliding seat (61).

6. A multi-head machining center according to claim 4, characterized in that: A plurality of bearings (93) are rotatably arranged on the support member (91), and the highest point of the bearings (93) is higher than the highest point of the pushing member (92).

7. A multi-head machining center according to claim 1, characterized in that: The transverse movement mechanism (3) comprises a transverse movement seat (31) and a transverse movement driving assembly (32); the transverse movement driving assembly (32) is arranged on the frame (1); and the transverse movement driving assembly (32) is used to drive the transverse movement seat (31) to move along the X-axis direction.

8. A multi-head machining center according to claim 7, characterized in that: A first guide rail (11) is fixedly provided on the top of the frame (1), the first guide rail (11) extends along the X-axis direction, and a first slider (33) is fixedly provided on the lower surface of the transverse shift seat (31); the first guide rail (11) passes through the first slider (33), and the first slider (33) is slidably engaged with the first guide rail (11); a second guide rail (12) is fixedly provided on the side wall of the frame (1), the second guide rail (12) extends along the X-axis direction, and a second slider (34) is fixedly provided on the side wall of the transverse shift seat (31), the second guide rail (12) passes through the second slider (34), and the second slider (34) is slidably engaged with the second guide rail (12).

9. A multi-head machining center according to claim 7, characterized in that: The lifting mechanism (4) comprises a lifting seat (41) and a lifting drive assembly (42); the lifting seat (41) is slidably matched with the transverse seat (31); the lifting drive assembly (42) is arranged on the transverse seat (31); the lifting drive assembly (42) is used to drive the lifting seat (41) to rise and fall; and the machining spindle (5) is arranged on the lifting seat (41).

10. The multi-head machining center according to claim 1, characterized in that: The machine base is also provided with a longitudinal drive mechanism (10), and the longitudinal drive mechanism (10) is used to drive the workpiece bearing platform (2) to move along the Y-axis direction.

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