Five-axis turning and milling combined machining center

Abstract

The invention discloses a five-axis turning and milling combined machining center in the technical field of combined machine tools, which comprises a machine shell, a workbench and a transverse rail are fixedly arranged in the machine shell, the transverse rail is fixedly mounted at the top in the machine shell, a front-back rail is slidably connected in the transverse rail, a connecting block is slidably connected in the front-back rail, and an arc rail is fixedly connected to the bottom of the connecting block. The top of the workbench is provided with a plurality of sets of lifting tables, the tops of the lifting tables are fixedly provided with installation discs, lifting cylinders are installed between the lifting tables and the workbench, the top of the workbench is provided with a sunken groove, the side wall of the sunken groove is rotationally connected with an isolation frame, and an isolation curtain is arranged in the isolation frame. A plurality of workpieces can be clamped at a time, and when the workpieces on one side are machined, the isolation frame on the other side can be rotationally lifted and isolated between the two lifting tables, so that chippings are prevented from splashing to the workpieces to be machined, the loading and unloading time investment can be reduced, the machining efficiency is improved, and meanwhile the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of compound machine tools, in particular to a five-axis turning and milling compound machining center. Background Art

[0002] At present, in modern equipment, in order to meet the requirements of precision and speed of turning and milling processing, more and more advanced machine tools of various types have appeared. Among them, the five-axis turning and milling machining center has multi-directional processing capabilities. Because of its multi-axis linkage characteristics, the five-axis turning and milling machining center is often used for parts processing in the automotive, aerospace and other industries. However, the existing five-axis linkage turning and milling machining center can only process one part at a time, and it is necessary to stop the machine, disassemble the processed parts, and then install the workpiece blank to continue processing, which is time-consuming and affects the processing progress; in the prior art, there is a way to achieve simultaneous processing of multiple workpieces by setting multiple spindle assemblies, but the spindles often have complex movements, so it is costly to add a spindle, and when multiple spindles are processed at the same time, there is no shielding between the parts, and the debris splashes each other, which easily affects the processing progress and precision.

[0003] The Chinese patent with application number: CN202011070454.8 discloses a fully automatic five-axis linkage turning and milling compound CNC machine tool. Through the setting of the loading and unloading mechanism, the workpiece to be processed can be fixed on the processing table while the workpiece is being processed. When the workpiece on the processing table is processed, it can be quickly docked and the workpiece on the processing table can be moved to the processing position for the next processing, which can increase the processing efficiency; the clamped workpiece is replaced by replacing the fixed seat. Considering the cost, the fixed seat can only be a simple flat plate structure without movement function, and the tool movement mechanism in the patent is relatively simple, which cannot meet the complex parts processing requirements. A certain space is required for the replacement mechanism of the fixed seat, and it is not compact enough.

[0004] Based on this, the present invention designs a five-axis turning and milling compound machining center to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a five-axis turning-milling compound machining center to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A five-axis turning and milling compound machining center comprises a casing, a workbench and a transverse rail are fixedly arranged in the casing, the transverse rail is fixedly installed on the top of the casing, front and rear rails are slidably connected in the transverse rail, connecting blocks are slidably connected in the front and rear rails, a circular arc rail is fixedly connected at the bottom of the connecting block, an arc plate is slidably connected in the circular arc rail, a machining axis is fixedly connected at the bottom of the arc plate, a plurality of lifting platforms are arranged on the top of the workbench, a mounting plate is fixedly installed on the top of the lifting platform, a lifting cylinder is installed between the lifting platform and the workbench, a sunken groove is opened on the top of the workbench, an isolation frame is rotatably connected to the side wall of the sunken groove, and an isolation curtain is arranged in the isolation frame.

[0007] Furthermore, a slider is fixedly connected to the top of the front and rear rails, and the slider is located in the transverse rail and the two slide together. Drive screws are installed in the transverse rail and the front and rear rails. The drive screw in the transverse rail is used to drive the slider to move, and the drive screw in the front and rear rails is used to drive the connecting block to move.

[0008] Furthermore, a reversing tooth is arranged on the outer side of the arc-shaped plate, a mounting groove is arranged in the connecting block, a reversing wheel is installed in the mounting groove, and the reversing wheel is meshed with the reversing tooth.

[0009] Furthermore, the center angle of the circular arc rail is greater than degrees, the center angle of the arc plate is greater than degrees, and the cross-section of the arc plate is T-shaped.

[0010] Furthermore, the isolation frame is symmetrically installed on both sides of the workbench, and slide grooves are opened on both sides of the isolation frame. The isolation curtain is installed on the top of the isolation frame, and a slide bar is fixedly connected to the bottom of the isolation curtain. Both ends of the slide bar extend into the slide groove and the two slide together.

[0011] Furthermore, an isolation screw is installed in the slide groove, and the isolation screw passes through the slide bar and is threadedly matched with the slide bar, and the isolation curtain is a corrugated curtain.

[0012] Furthermore, the bottom end of the isolation frame is rotatably connected to the sunken groove via a rotating shaft, the rotating shaft is fixed to the isolation frame, and a motor for driving the rotating shaft to rotate is installed inside the workbench.

[0013] Furthermore, protective sheets are fixedly connected to both sides of the connection block, the protective sheets are located inside the circular arc rail, and the protective sheets are corrugated folded sheets.

[0014] Furthermore, an operating frame is provided on the front side of the casing, and a protective window is provided outside the operating frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The device is provided with a plurality of lifting platforms and mounting plates for mounting workpieces, and can clamp a plurality of workpieces at a time. When processing a workpiece on one side, the isolation frame on the other side can be rotated and lifted to be isolated between the two lifting platforms, thereby preventing debris from splashing onto the workpiece to be processed and affecting subsequent processing. The loading and unloading time investment can be reduced, and the processing efficiency is improved. At the same time, the cost is relatively small, and the workpieces do not affect each other. The transverse rail and the front and rear rails realize movement in the X and Y directions, the arc rail realizes arc processing of the processing axis, the lifting cylinder realizes movement in the Z direction, and the mounting plate can rotate, thereby forming a five-axis compound turning and milling machining center, which can meet various processing requirements of workpieces and realize the functions of turning and milling on one machine tool.

[0016] When the workpiece on the mounting plate on one of the lifting platforms is being processed, the workpiece on the mounting plate of the other lifting platform can be adjusted, clamped, and disassembled due to the presence of the isolation frame, thereby realizing a working mode in which the lifting platform on one side processes the workpiece while the lifting platform on the other side adjusts the workpiece, thereby greatly saving time, improving processing efficiency, efficiently utilizing machine tool space, and having a compact structure.

[0017] The bottom of the lifting platform has a relatively open space, which is convenient for cleaning processing debris, and the debris will not accumulate in the transverse rails and the front and rear rails, thereby ensuring reliable transmission and facilitating the collection and sorting of debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention from a front perspective; Figure 2 This is a schematic diagram of the internal structure of the present invention from a front perspective; Figure 3 It is a schematic diagram of the enlarged structure of part A of the present invention; Figure 4 This is a schematic diagram of the structure of the present invention from a bottom-up perspective; Figure 5 A schematic diagram of a half-section structure of the present invention from a side perspective; Figure 6 A schematic diagram of a half-section structure of the workbench of the present invention from a top view; Figure 7 B is an enlarged structural diagram of the present invention; Figure 8 It is a schematic diagram of the internal structure of the present invention from a front perspective.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Casing; 2. Workbench; 3. Horizontal rail; 4. Front and rear rails; 5. Connecting block; 6. Circular arc rail; 7. Arc plate; 8. Processing axis; 9. Lifting platform; 10. Lifting cylinder; 11. Sunken groove; 12. Isolation frame; 13. Isolation curtain; 14. Sliding block; 15. Driving screw; 16. Reversing gear; 17. Mounting groove; 18. Reversing wheel; 19. Slide groove; 20. Slide bar; 21. Isolation screw; 22. Rotating shaft; 23. Protective sheet; 24. Operating frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-8 , the present invention provides a technical solution: A five-axis turning and milling compound machining center comprises a casing 1, a workbench 2 and a transverse rail 3 are fixedly arranged in the casing 1, the transverse rail 3 is fixedly installed at the top of the casing 1, front and rear rails 4 are slidably connected in the transverse rail 3, a connecting block 5 is slidably connected in the front and rear rails 4, a circular arc rail 6 is fixedly connected at the bottom of the connecting block 5, an arc plate 7 is slidably connected in the circular arc rail 6, a machining axis 8 is fixedly connected at the bottom of the arc plate 7, a plurality of lifting platforms 9 are arranged on the top of the workbench 2, a mounting plate is fixedly installed on the top of the lifting platform 9, a lifting cylinder 10 is installed between the lifting platform 9 and the workbench 2, a sunken groove 11 is opened on the top of the workbench 2, an isolation frame 12 is rotatably connected to the side wall of the sunken groove 11, and an isolation curtain 13 is arranged in the isolation frame 12.

[0023] The device is provided with a plurality of lifting platforms 9 and mounting plates for mounting workpieces, and can clamp a plurality of workpieces at a time. When processing a workpiece on one side, the isolation frame 12 on the other side can be rotated and raised, and isolated between the two lifting platforms 9, so as to prevent debris from splashing onto the workpiece to be processed and to avoid affecting subsequent processing. The transverse rail 3 and the front and rear rails 4 realize movement in the X and Y directions, the arc rail 6 realizes arc processing of the processing axis 8, the lifting cylinder 10 realizes movement in the Z direction, and the mounting plate can rotate by itself, and adjust the tool of the processing axis 8 and its processing position relative to the workpiece, which can realize the function of turning or milling, thereby forming a five-axis compound turning and milling machining center, which efficiently utilizes the machine tool space, has a compact structure, can meet multiple processing requirements on one machine tool, can reduce the time investment for loading and unloading, and improve processing efficiency, while the cost is relatively low, and the workpieces do not affect each other.

[0024] When the workpiece on the mounting disk on one of the lifting platforms 9 is being processed, the lifting platforms 9 on both sides can be isolated due to the existence of the isolation frame 12. Therefore, the workpiece on the mounting disk of the other lifting platform 9 can also be adjusted, clamped and disassembled at this time, thereby realizing a working mode in which the lifting platform 9 on one side processes the workpiece while the lifting platform 9 on the other side adjusts the workpiece, thereby greatly saving time and improving processing efficiency. One processing axis 8 can be fully and efficiently used to achieve continuous operation.

[0025] The movement in the Z direction is achieved by the lifting cylinder 10, and the transverse rail 3 and the front and rear rails 4 are achieved by the movement in the X and Y directions and are arranged on the top, so that the bottom of the lifting platform 9 has a relatively open space, which is convenient for cleaning the processing debris, and the debris will not accumulate in the transverse rail 3 and the front and rear rails 4, thereby ensuring reliable transmission and facilitating the collection and sorting of debris.

[0026] When processing a workpiece on the mounting disk on one of the lifting platforms 9, the isolation frame 12 on the side away from the lower lifting platform 9 is rotated and raised, which can provide more processing space for the mounting disk on the lifting platform 9 being processed, thereby facilitating subsequent processing and improving processing efficiency; the blocked debris falls on the opposite side of the folding direction, so that debris will not accumulate in the reserved sunken groove 11. After use, the isolation frame 12 is folded flat.

[0027] The arc rail 6 and the arc plate 7 cooperate to drive the processing axis 8 to achieve angle change, and have good stability while having a large change angle. After the isolation frame 12 rotates and rises, the isolation curtain 13 falls to form a plane barrier to prevent debris from splashing.

[0028] See also Figure 2 , 4 , 5, wherein a slider 14 is fixedly connected to the top of the front and rear rails 4, the slider 14 is located in the transverse rail 3 and the two are slidably matched, and a driving screw 15 is installed in the transverse rail 3 and the front and rear rails 4. The driving screw 15 in the transverse rail 3 is used to drive the slider 14 to move, and the driving screw 15 in the front and rear rails 4 is used to drive the connecting block 5 to move.

[0029] The track can achieve multi-directional movement while greatly avoiding the trouble of processing debris, and the screw drive is stable and accurate.

[0030] See also Figure 5 A reversing tooth 16 is provided on the outer side of the arc plate 7 , a mounting groove 17 is provided in the connecting block 5 , a reversing wheel 18 is installed in the mounting groove 17 , and the reversing wheel 18 is meshed with the reversing tooth 16 .

[0031] The motor outside the mounting groove 17 drives the reversing wheel 18 to rotate, thereby driving the arc plate 7 to make an arc motion along the circular arc track 6, thereby driving the processing axis 8 to achieve angle change. The structure is compact, can adapt to various processing environments, and is relatively durable.

[0032] See also Figure 5 , wherein the center angle of the circular arc rail 6 is greater than 180 degrees, the center angle of the arc plate 7 is greater than 90 degrees, and the cross-section of the arc plate 7 is T-shaped.

[0033] The cooperation between the arc plate 7 with a larger angle and the circular arc rail 6 can increase the stability of the arc plate 7 during rotation and greatly reduce the jitter. The circular arc rail 6 with an angle of more than 180 degrees makes the arc plate 7 have better stability while obtaining the maximum rotation angle, thereby providing a larger processing range when processing the workpiece.

[0034] See also Figure 2-3 , 6-8, wherein the isolation frame 12 is symmetrically installed on both sides of the workbench 2, and slide grooves 19 are opened on both sides of the isolation frame 12. The isolation curtain 13 is installed on the top of the isolation frame 12, and a slide bar 20 is fixedly connected to the bottom of the isolation curtain 13. Both ends of the slide bar 20 extend out of the slide groove 19 and the two slide together.

[0035] An isolation screw 21 is installed in the slide groove 19 , and the isolation screw 21 passes through the slide bar 20 and is threadedly engaged therewith, and the isolation curtain 13 is a corrugated curtain.

[0036] The bottom end of the isolation frame 12 is rotatably connected to the sunken groove 11 via a rotating shaft 22 . The rotating shaft 22 is fixed to the isolation frame 12 . A motor for driving the rotating shaft 22 to rotate is installed inside the workbench 2 .

[0037] When processing the workpiece on one side, the motor drives the rotating shaft 22 on the other side to make the isolation frame 12 rotate and stand up, and then the isolation screw 21 in the standing isolation frame 12 is connected to drive the slide bar 20 to move downward, thereby pulling the isolation curtain 13 downward to unfold, thereby forming a complete barrier between the processing workpiece and the processed workpiece, with a simple structure and reliable internal structure.

[0038] Wherein, protective sheets 23 are fixedly connected to both sides of the connection block 5 , the protective sheets 23 are located inside the circular arc rail 6 , and the protective sheets 23 are corrugated folded sheets.

[0039] When the arc plate 7 drives the processing axis 8 to move and change the angle, the connecting block 5 moves to squeeze or stretch the protective plates 23 on both sides, thereby adapting to the movement of the processing axis 8, preventing debris from entering the circular arc rail 6 during processing, and protecting the rail.

[0040] An operating frame 24 is disposed on the front side of the housing 1 , and a protective window is disposed outside the operating frame 24 .

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A five-axis turning and milling machining center, characterized in that: The invention comprises a casing (1), wherein a workbench (2) and a transverse rail (3) are fixedly arranged in the casing (1), the transverse rail (3) is fixedly installed at the top of the casing (1), a front and rear rail (4) is slidably connected in the transverse rail (3), a connecting block (5) is slidably connected in the front and rear rail (4), a circular arc rail (6) is fixedly connected at the bottom of the connecting block (5), a curved plate (7) is slidably connected in the circular arc rail (6), a processing shaft (8) is fixedly connected at the bottom of the curved plate (7), a plurality of lifting platforms (9) are arranged at the top of the workbench (2), a mounting plate is fixedly installed at the top of the lifting platform (9), a lifting cylinder (10) is installed between the lifting platform (9) and the workbench (2), a sunken groove (11) is opened at the top of the workbench (2), a side wall of the sunken groove (11) is rotatably connected to an isolation frame (12), and an isolation curtain (13) is arranged in the isolation frame (12).

2. A five-axis turning-milling machining center according to claim 1, characterized in that: A slider (14) is fixedly connected to the top of the front and rear rails (4). The slider (14) is located in the transverse rail (3) and the two are slidably matched. A driving screw (15) is installed in the transverse rail (3) and the front and rear rails (4). The driving screw (15) in the transverse rail (3) is used to drive the slider (14) to move, and the driving screw (15) in the front and rear rails (4) is used to drive the connecting block (5) to move.

3. A five-axis turning-milling machining center according to claim 1, characterized in that: A reversing tooth (16) is provided on the outer side of the arc-shaped plate (7), a mounting groove (17) is provided in the connecting block (5), a reversing wheel (18) is installed in the mounting groove (17), and the reversing wheel (18) is meshed with the reversing tooth (16).

4. A five-axis turning-milling machining center according to claim 3, characterized in that: The center angle of the circular arc rail (6) is greater than 180 degrees, the center angle of the arc plate (7) is greater than 90 degrees, and the cross section of the arc plate (7) is T-shaped.

5. A five-axis turning-milling machining center according to claim 1, characterized in that: The isolation frame (12) is symmetrically mounted on both sides of the workbench (2). Slide grooves (19) are provided on both sides of the isolation frame (12). The isolation curtain (13) is mounted on the top of the isolation frame (12). The bottom of the isolation curtain (13) is fixedly connected with a slide bar (20). Both ends of the slide bar (20) extend out of the slide grooves (19) and the two slide together.

6. A five-axis turning-milling machining center according to claim 5, characterized in that: An isolation screw (21) is installed in the slide groove (19), and the isolation screw (21) passes through the slide bar (20) and is threadably matched therewith, and the isolation curtain (13) is a corrugated curtain.

7. A five-axis turning-milling machining center according to claim 1, characterized in that: The bottom end of the isolation frame (12) is rotatably connected to the sunken groove (11) via a rotating shaft (22), the rotating shaft (22) is fixed to the isolation frame (12), and a motor for driving the rotating shaft (22) to rotate is installed inside the workbench (2).

8. A five-axis turning-milling machining center according to claim 1, characterized in that: Protective sheets (23) are fixedly connected to both sides of the connection block (5); the protective sheets (23) are located inside the circular arc rail (6); and the protective sheets (23) are corrugated folded sheets.

9. A five-axis turning-milling machining center according to claim 1, characterized in that: An operating frame (24) is provided on the front side of the housing (1), and a protective window is provided outside the operating frame (24).

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