Ten-axis five-linkage intelligent composite numerical control machine tool

Abstract

The invention belongs to the technical field of composite numerical control machine tools, and particularly relates to a ten-axis five-linkage intelligent composite numerical control machine tool which comprises a machine tool base, two workpiece tail bases are slidably connected to the upper portion of the machine tool base and symmetrically arranged in the length direction of the machine tool base, and a cutter sliding table is fixedly installed in the middle of the upper portion of the machine tool base. The cutter sliding table is used for bearing a cutter assembly; a cutter rotary table is rotationally connected to the upper portion of the cutter sliding table and can drive the cutter assembly to rotate, so that the machining track of the cutter coincides with the throat diameter plane of the workpiece. By means of the ten-axis five-linkage arrangement and the cooperation of the symmetrically-arranged workpiece head and tail frames and the middle cutter sliding table, precise machining of complex workpieces can be achieved, the machining precision of the workpieces is guaranteed, and the machining requirements of high-precision parts and complex-surface-roughness parts are met. The problems that small-modulus workpieces in the current market are poor in adaptability, and large-modulus multi-specification machining requirements cannot be met are solved.

Description

Technical Field

[0001] This invention belongs to the field of composite CNC machine tool technology, specifically referring to a ten-axis five-linkage intelligent composite CNC machine tool. Background Technology

[0002] In the high-end equipment manufacturing fields such as precision molds and core automotive components, the machining of complex parts (such as worm gears, crankshafts, and irregularly shaped curved components) places stringent demands on equipment, requiring "multi-process integration, high-precision control, and multi-specification adaptation." However, existing CNC machine tools have significant technical shortcomings, making it difficult to support the actual scenarios of efficient and high-precision machining of complex parts.

[0003] Traditional CNC machine tools are mostly single-operation dedicated equipment. For example, a standalone milling machine can only complete milling shaping, and a grinding machine can only perform grinding finishing. When machining complex parts, the workpiece needs to be repeatedly transferred between multiple machines. This not only results in time-consuming process changes but also causes positioning deviations due to multiple clamping, making it difficult to guarantee the accuracy of the parts. Even though some composite CNC machine tools can achieve integrated milling and grinding, their number of linkage axes is mostly limited to three or five axes, which cannot cover the multi-directional and multi-path machining needs of complex parts. Especially for irregularly shaped parts with "throat planes" (such as turbine blades and precision gears), existing equipment cannot ensure that the tool machining trajectory coincides precisely with the reference plane, and the machining accuracy has always been a bottleneck.

[0004] In addition, the workpiece adaptability of existing CNC machine tools has significant defects: the workpiece tailstock of most equipment is a fixed structure, which can only adapt to parts of specific sizes. When facing batch production of multiple specifications, it is necessary to frequently disassemble and adjust the tooling fixtures, and the debugging process is cumbersome and time-consuming. At the same time, the equipment generally lacks a real-time shaping and calibration mechanism. Errors caused by tool wear and material deformation during the processing cannot be corrected in time, resulting in large fluctuations in the part qualification rate, which makes it difficult to meet the requirements of high-end manufacturing for quality stability. Summary of the Invention

[0005] In response to the above situation and to overcome the shortcomings of the existing technology, the present invention provides a ten-axis five-linkage intelligent composite CNC machine tool, which effectively solves the problem of poor workpiece adaptability and inability to meet the processing needs of multiple specifications in the current market.

[0006] The technical solution adopted by this invention is as follows: This invention proposes a ten-axis five-linkage intelligent composite CNC machine tool, including: a machine tool base, two sets of workpiece tailstocks are slidably connected above the machine tool base, the two sets of workpiece tailstocks are symmetrically arranged along the length direction of the machine tool base, a tool slide is fixedly installed in the middle of the upper part of the machine tool base, the tool slide is used to support the tool assembly; a tool rotary table is rotatably connected above the tool slide, the tool rotary table can drive the tool assembly to rotate, so that the tool machining trajectory coincides with the workpiece throat diameter plane.

[0007] Furthermore, a workpiece spindle box is fixedly installed above one of the workpiece tailstocks, and a drive motor is fixed above the workpiece spindle box by bolts. The output end of the drive motor is connected to the workpiece spindle box and is used to drive the workpiece spindle box to finely adjust its position.

[0008] Furthermore, a tool rotating part is provided on the side of the workpiece spindle box near another set of workpiece tailstocks. The tool rotating part includes a spindle and a chuck. The spindle is connected to the workpiece spindle box and is used to drive the chuck and the clamped workpiece to rotate synchronously.

[0009] Furthermore, a tool column is slidably connected above the tool turntable, the tool column slides along the tool turntable, and a grinding motor is fixedly installed above the tool column. The grinding motor is connected to the tool spindle on one side of the tool column through a transmission assembly.

[0010] Furthermore, the tool spindle can be adapted to tool fixtures of different specifications, and grinding wheels or milling cutters can be mounted on the fixtures for grinding or milling of workpieces, respectively.

[0011] Furthermore, a vertical movement mechanism for the dressing roller is fixedly arranged above the side of the tool column near the tool spindle. The output end of the vertical movement mechanism for the dressing roller is connected to a horizontal movement mechanism for the dressing roller, which is used to drive the horizontal movement mechanism for the dressing roller to move up and down in the vertical direction.

[0012] Furthermore, a dressing roller is rotatably connected to the side of the dressing roller horizontal moving mechanism away from the dressing roller vertical moving mechanism, which is used to perform surface shaping and dimensional calibration on the workpiece during processing.

[0013] Furthermore, a tool moving part is fixedly installed on the machine tool base above the workpiece tailstock, away from the workpiece spindle box, for pushing the workpiece to move and cooperating with the tool rotating part to clamp the workpiece.

[0014] Furthermore, the two sets of machine tool bases drive the workpiece tailstock to slide, and the workpiece tailstock moves closer or further away from each other along the length of the machine tool base, adapting to the clamping requirements of workpieces of different lengths.

[0015] Furthermore, the horizontal movement mechanism of the dressing roller is slidably connected to the tool column and can be adjusted along the height direction of the tool column. Together with the vertical movement mechanism of the dressing roller, it realizes the position adjustment of the dressing roller in three-dimensional space to adapt to the shaping needs of different positions of the workpiece.

[0016] The present invention has the following beneficial effects:

[0017] 1. Through a ten-axis, five-linkage design, coupled with two symmetrically arranged workpiece tailstocks and a central tool slide, multi-process composite machining of complex workpieces can be achieved. The tool spindle is compatible with both grinding wheels and milling cutters, enabling composite machining such as worm milling and grinding without frequent equipment changes, significantly shortening the machining process. The tool rotary table can rotate to coincide with the workpiece throat plane, ensuring machining accuracy and meeting the machining requirements of high-precision, complex parts.

[0018] 2. The workpiece tailstock can slide relative to the workpiece, cooperating with the tool moving part to achieve stable workpiece clamping; the horizontal and vertical moving mechanisms of the dressing rollers work together to accurately shape the workpiece, improving the stability of machining quality. The drive motor and grinding motor provide sufficient power to ensure machining efficiency. The overall design reduces manual intervention, improves machining consistency, is suitable for mass production, and effectively improves machine tool utilization and production efficiency. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the ten-axis five-linkage intelligent composite CNC machine tool proposed in this invention;

[0020] Figure 2 This is a schematic diagram of the vertical movement mechanism of the dressing roller in the ten-axis five-linkage intelligent composite CNC machine tool proposed in this invention.

[0021] Figure 3 This is a schematic diagram of the overall structure of the ten-axis five-linkage intelligent composite CNC machine tool proposed in this invention, and a schematic diagram of the grinding wheel dressing roller.

[0022] Figure 4 This is an overall schematic diagram of the ten-axis five-linkage intelligent composite CNC machine tool proposed in this invention, and a schematic diagram of the tool moving part.

[0023] Among them, 1. Machine tool base; 2. Workpiece spindle box; 3. Tool slide; 21. Drive motor; 3. Tool slide; 4. Tool turntable; 5. Workpiece tailstock; 6. Tool column; 61. Motor; 7. Tool spindle; 8. Grinding wheel dressing roller; 9. Dressing roller horizontal movement mechanism; 10. Dressing roller vertical movement mechanism; 11. Tool rotating part; 12. Tool moving part.

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figure 1 This invention proposes a ten-axis, five-linkage intelligent composite CNC machine tool, comprising:

[0028] The machine tool includes a machine tool base 1, with two sets of workpiece tailstocks 5 slidably connected above the machine tool base 1. The two sets of workpiece tailstocks 5 are symmetrically arranged along the length of the machine tool base 1. A tool slide 3 is fixedly installed in the middle of the upper part of the machine tool base 1. The tool slide 3 is used to support the tool assembly. A tool turntable 4 is rotatably connected above the tool slide 3. The tool turntable 4 can drive the tool assembly to rotate so that the tool machining trajectory coincides with the workpiece throat diameter plane.

[0029] In practical use, the workpiece tailstock 5 slides along the guide rail to adapt to the length of the workpiece, the tool slide 3 drives the tool turntable 4 to move linearly, and the tool turntable 4 rotates around the vertical axis to adjust the tool angle, so that the tool machining trajectory coincides with the key reference surface of the workpiece throat diameter plane, providing accurate reference positioning for multi-process machining and meeting the high-precision machining requirements of complex workpieces such as worm gears and crankshafts.

[0030] Among them, a workpiece spindle box 2 is fixedly installed above one of the workpiece tailstocks 5. A push motor 21 is fixed above the workpiece spindle box 2 by bolts. The output end of the push motor 21 is connected to the workpiece spindle box 2 and is used to drive the workpiece spindle box 2 to fine adjust its position.

[0031] In practical use, the motor 21 drives the fine-tuning screw to rotate, which in turn drives the workpiece spindle box 2 to adjust the range along the workpiece tailstock 5, thereby achieving high-precision position compensation of the workpiece spindle box 2 and ensuring the coaxiality of the spindle and the tool.

[0032] Among them, a tool rotating part 11 is provided on the side of the workpiece spindle box 2 near the other set of workpiece tailstock 5. The tool rotating part 11 includes a spindle and a chuck. The spindle is connected to the workpiece spindle box 2 and is used to drive the chuck and the clamped workpiece to rotate synchronously.

[0033] In practical use, the spindle motor drives the spindle to rotate, which in turn drives the chuck and the workpiece held in it to rotate synchronously. The speed range can be adjusted to provide a stable rotational feed for the workpiece, meeting the speed requirements of milling, grinding and other machining processes.

[0034] Among them, a tool column 6 is slidably connected above the tool turntable 4. The tool column 6 slides along the tool turntable 4. A grinding motor 61 is fixedly installed above the tool column 6. The grinding motor 61 is connected to the tool spindle 7 on one side of the tool column 6 through a transmission assembly.

[0035] In practical use, the grinding motor 61 drives the tool spindle 7 to rotate through the transmission assembly, and the tool column 6 slides along the guide rail of the tool turntable 4 to adjust the radial distance between the tool and the workpiece, thereby realizing the radial feed and rotation drive of the tool and providing power for processing.

[0036] The tool spindle 7 can be adapted to tool fixtures of different specifications. Grinding wheels or milling cutters can be installed through the fixtures for grinding or milling of workpieces, respectively.

[0037] In practical use, when the grinding wheel is installed, the tool spindle 7 drives the grinding wheel to rotate at high speed to perform grinding and finishing on the workpiece; when the milling cutter is installed, it drives the milling cutter to rotate to perform milling and shaping on the workpiece, realizing "milling-grinding" composite processing without changing the machine tool and improving processing efficiency.

[0038] Among them, a vertical movement mechanism 10 for dressing rollers is fixedly arranged above the side of the tool column 6 near the tool spindle 7. The output end of the vertical movement mechanism 10 for dressing rollers is connected to a horizontal movement mechanism 9 for driving the horizontal movement mechanism 9 to move up and down in the vertical direction.

[0039] In practical use, the vertical moving mechanism 10 of the dressing roller drives the horizontal moving mechanism 9 of the dressing roller to rise and fall along the vertical Z-axis, adjusting the range to realize the vertical position adjustment of the dressing roller 8 of the grinding wheel, adapting to the shaping needs of workpieces of different diameters.

[0040] Among them, the dressing roller horizontal moving mechanism 9 is rotatably connected to the grinding wheel dressing roller 8 on the side away from the dressing roller vertical moving mechanism 10, which is used to perform surface shaping and dimensional calibration on the workpiece during processing.

[0041] In practical use, during the processing, the grinding wheel dressing roller 8 moves with the dressing mechanism to contact the workpiece surface. It rotates to shape and calibrate the workpiece surface, correcting processing errors and realizing online shaping during workpiece processing to ensure greater workpiece dimensional accuracy.

[0042] Among them, a tool moving part 12 is fixedly installed on the machine tool base 1 above the workpiece tailstock 5, which is far away from the workpiece spindle box 2, to push the workpiece to move and to clamp the workpiece in conjunction with the tool rotating part 11.

[0043] In practical use, the tool moving part 12 pushes the ejector seat to move towards the workpiece, and the ejector pin clamps the other end of the workpiece. The workpiece is clamped in conjunction with the chuck of the tool rotating part 11. The clamping force can be adjusted by the push rod pressure to enable automatic clamping of the workpiece, adapt to workpieces of different lengths, and the clamping is stable and reliable.

[0044] Among them, the two sets of machine tool bases 1 drive the workpiece tailstock 5 to slide, and the workpiece tailstock 5 moves closer or further away from each other along the length of the machine tool base 1, adapting to the clamping requirements of workpieces of different lengths.

[0045] In practical use, the CNC system controls two sets of motors to synchronously drive the workpiece tailstock 5 to adjust the spacing until it matches the workpiece clamping length. It automatically adapts to workpieces of different lengths and specifications, improving clamping efficiency and reducing manual operation time.

[0046] Among them, the horizontal moving mechanism 9 of the dressing roller is slidably connected to the tool column 6 and can be adjusted along the height direction of the tool column 6. Together with the vertical moving mechanism 10 of the dressing roller, it realizes the position adjustment of the dressing roller 8 in three-dimensional space to adapt to the shaping needs of different positions of the workpiece.

[0047] In practical use, the grinding wheel dressing roller 8 can be precisely positioned in three-dimensional space by adjusting the movement in the X, Y, and Z axes. It can reach any position on the workpiece surface and adapt to different workpiece positions, such as the end face, outer circle, and tooth surface shaping needs, thereby improving the equipment's processing versatility.

[0048] In use, the two sets of workpiece tailstocks 5 slide relative to each other on the machine tool base 1, and the workpiece ends are clamped and fixed in conjunction with the tool moving part 12. The push motor 21 of the workpiece spindle box 2 is finely adjusted to ensure that the workpiece axis is aligned with the machining datum, providing stable support for subsequent processing.

[0049] The tool spindle 7 is equipped with a grinding wheel or milling cutter according to the machining requirements. The tool column 6 slides along the tool turntable 4 to adjust its radial position. The tool turntable 4 drives the tool to rotate so that it coincides with the throat diameter plane of the workpiece, ensuring the accuracy of the machining trajectory.

[0050] The ten-axis five-linkage system coordinates the movement of each axis. The workpiece rotates with the spindle via the tool rotating part 11. The tool spindle 7 rotates at high speed under the drive of the grinding motor 61 to complete milling, grinding and other processes. During processing, the dressing roller horizontal moving mechanism 9 and the dressing roller vertical moving mechanism 10 work together, and the grinding wheel dressing roller 8 shapes the workpiece in real time to improve surface accuracy.

[0051] Through system linkage control, the milling forming and grinding finishing of complex parts such as worm gears can be completed without replacing equipment, reducing the process conversion time. The cooperation of each group of components enables multi-directional feeding, meeting the processing requirements of complex curved surfaces and high-precision parts, and ensuring the consistency and efficiency of mass production.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0054] The above describes the present invention and its embodiments, and this description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural ways and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A ten-axis, five-linkage intelligent composite CNC machine tool, characterized in that: The machine tool includes a machine tool base (1), on which two sets of workpiece tailstocks (5) are slidably connected. The two sets of workpiece tailstocks (5) are symmetrically arranged along the length of the machine tool base (1). A tool slide (3) is fixedly installed in the middle of the upper part of the machine tool base (1). The tool slide (3) is used to support the tool assembly. A tool turntable (4) is rotatably connected above the tool slide (3). The tool turntable (4) can drive the tool assembly to rotate, so that the tool machining trajectory coincides with the workpiece throat diameter plane.

2. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 1, characterized in that: A workpiece spindle box (2) is fixedly installed above one of the workpiece tailstocks (5). A drive motor (21) is fixed above the workpiece spindle box (2) by bolts. The output end of the drive motor (21) is connected to the workpiece spindle box (2) and is used to drive the workpiece spindle box (2) to fine adjust its position.

3. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 2, characterized in that: The workpiece spindle box (2) is provided with a tool rotating part (11) on the side near another set of workpiece tailstocks (5). The tool rotating part (11) includes a spindle and a chuck. The spindle is connected to the workpiece spindle box (2) and is used to drive the chuck and the clamped workpiece to rotate synchronously.

4. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 3, characterized in that: A tool column (6) is slidably connected above the tool turntable (4). The tool column (6) slides along the tool turntable (4). A grinding motor (61) is fixedly installed above the tool column (6). The grinding motor (61) is connected to the tool spindle (7) on one side of the tool column (6) through a transmission assembly.

5. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 4, characterized in that: The tool spindle (7) can be adapted to tool fixtures of different specifications. Grinding wheels or milling cutters can be installed through the fixtures for grinding or milling of workpieces, respectively.

6. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 5, characterized in that: A vertical movement mechanism (10) for dressing rollers is fixedly arranged above the side of the tool column (6) near the tool spindle (7). The output end of the vertical movement mechanism (10) for dressing rollers is connected to a horizontal movement mechanism (9) for driving the horizontal movement mechanism (9) for dressing rollers to move up and down in the vertical direction.

7. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 6, characterized in that: The dressing roller horizontal moving mechanism (9) is rotatably connected to the grinding wheel dressing roller (8) on the side away from the dressing roller vertical moving mechanism (10), which is used to perform surface shaping and dimensional calibration on the workpiece during processing.

8. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 7, characterized in that: A tool moving part (12) is fixedly installed on the machine tool base (1) above the workpiece tailstock (5) away from the workpiece spindle box (2), which is used to push the workpiece to move and cooperate with the tool rotating part (11) to clamp the workpiece.

9. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 8, characterized in that: The two sets of machine tool bases (1) drive the workpiece tailstock (5) to slide, and the workpiece tailstock (5) moves closer or further away from each other along the length of the machine tool base (1) to accommodate workpiece clamping requirements of different length specifications.

10. The ten-axis five-linkage intelligent composite CNC machine tool according to claim 9, characterized in that: The horizontal moving mechanism (9) of the dressing roller is slidably connected to the tool column (6) and can be adjusted along the height direction of the tool column (6). Together with the vertical moving mechanism (10) of the dressing roller, it realizes the position adjustment of the dressing roller (8) in three-dimensional space to adapt to the shaping needs of different positions of the workpiece.

Images