Eccentric five-axis machine tool

Abstract

The utility model relates to an eccentric five-shaft machine tool which comprises a first fixing end and a second fixing end, an A shaft is rotationally arranged between the first fixing end and the second fixing end, a C shaft is arranged at the top of a Y shaft, the second fixing end comprises a fixing frame, a first rotating shaft is arranged on one side of the fixing frame, and the C shaft is eccentrically arranged on the side close to the fixing frame. The fixing frame is arranged on one side of the shaft A, the rotating shaft is installed on the fixing frame, the space on one side of the shaft A is reduced, meanwhile, the shaft C is eccentrically arranged on the side, close to the fixing frame, of the shaft A, the overall machining space on the table top is greatly increased, and the machining efficiency is improved. Through accurate matching of the sliding bottom plate and the sliding base, the machining angle can be adjusted under the condition that the position of a workpiece is not changed.

Description

Technical Field

[0001] The utility model relates to the field of equipment processing, and particularly relates to an eccentric five-axis machine tool. Background Art

[0002] A five-axis machine tool is a high-precision numerical control machine tool with five coordinate axes, including three linear axes (X, Y, Z) and two rotary axes (A, B or C). It can achieve efficient processing of complex parts. The core advantage of the five-axis machine tool lies in its multi-axis linkage ability, which can complete multi-face machining of complex curved surfaces in one clamping, greatly improving production efficiency and machining accuracy. It can complete multi-face machining of complex parts without re-clamping, significantly reducing processing time and increasing production efficiency.

[0003] The publication number is: CN214518824U, which discloses an AC turntable device for a five-axis machining center, including an A axis. The two ends of the A axis are respectively rotationally connected to a first box body and a second box body. The first box body and the second box body are respectively fixed at both ends of a base. The upper end of the A axis is rotationally connected to a C axis. A base is arranged inside the A axis, and a turntable is arranged on the base. The base and the turntable are fixedly connected by a hydraulic cylinder, and the turntable is fixedly connected to the C axis. The technical solution of the utility model forms a five-axis machining center by assembling this device on a three-axis machining center through the A axis and the C axis; by providing a hydraulic cylinder to firmly fix the axis, preventing the turntable from shifting under heavy cutting conditions and improving machining accuracy; adopting a double-worm structure to eliminate the gap between the worm wheel and the worm, realizing zero-clearance transmission and improving the machining accuracy of the device. However, since the fixture of this device is arranged at the center of the machine tool, it cannot process large products. The setting of the fixture position results in limited machining space. At the same time, this device cannot be adjusted in position according to machining needs. Therefore, there is still room for improvement in this technology. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide an eccentric five-axis machine tool aiming at the deficiencies of the above-mentioned prior art.

[0005] To achieve the above object, the utility model provides the following technical solution: An eccentric five-axis machine tool includes a first fixed end and a second fixed end. An A axis is rotatably arranged between the first fixed end and the second fixed end. A C axis is arranged at the top of the Y axis. The characteristics are as follows: The second fixed end includes a fixed frame. A first rotating shaft is arranged on one side of the fixed frame. The C axis is eccentrically arranged close to one side of the fixed frame. A sliding structure capable of promoting the sliding adjustment of the device is further arranged at the bottoms of the first fixed end and the fixed frame.

[0006] With the above technical solution, by setting a fixed frame on one side of the A-axis and installing a rotating shaft on the fixed frame, the space on one side of the A-axis is reduced. At the same time, the C-axis is eccentrically arranged on the side of the A-axis close to the fixed frame, greatly increasing the overall processing space on the table surface, enabling the equipment to process large products and increasing the applicability of the equipment.

[0007] The above-mentioned eccentric five-axis machine tool can be further set as follows: The sliding structure wraps the sliding bottom plate arranged at the bottom of the first fixed end and the second fixed end. The bottom of the sliding bottom plate is connected with a sliding base. A sliding groove is formed on the surface of the sliding base, and a number of connecting holes are formed on the sliding bottom plate. A connecting piece can be used to enable the sliding connection between the sliding bottom plate and the sliding base between the sliding groove and the connecting holes.

[0008] With the above technical solution, through the precise cooperation between the sliding bottom plate and the sliding base, the processing angle can be adjusted without changing the position of the workpiece, reducing the cumulative error caused by multiple clamping, thereby improving the processing accuracy and finely adjusting the position of the workpiece so that the workpiece can be processed at the best angle.

[0009] The above-mentioned eccentric five-axis machine tool can be further set as follows: The first fixed end includes a rotating machine box. A machine box base is also arranged between the rotating machine box and the sliding bottom plate. A rotating flange fixedly connected to the A-axis is arranged on one side of the replacement machine box facing the A-axis, so that the rotating flange can drive the A-axis to rotate.

[0010] With the above technical solution, by arranging a rotating machine box at the upper end of the machine box base and arranging a rotating flange on one side of the rotating machine box so that the rotating flange can drive the A-axis to rotate, products can be processed at multiple angles, increasing the applicability of the equipment.

[0011] The above-mentioned eccentric five-axis machine tool can be further set as follows: A first installation cavity for installing a driving component is arranged inside the A-axis. A second installation cavity for installing a gear component is formed on the surface of the A-axis. The driving component extends a central shaft into the second installation cavity. The central shaft is connected to one end of the gear component. A transmission shaft and a C-axis transmission machine are also arranged inside the A-axis. The end of the transmission shaft is connected to the other end of the gear component so that the transmission shaft can drive the C-axis transmission machine to rotate. A fixing hole is formed at the upper end of the C-axis transmission machine. The C-axis is fixedly connected to the C-axis transmission machine.

[0012] With the above technical solution, integrating the driving component, the central shaft and the gear component inside the A-axis realizes the effective transmission of power, can reduce the loss of energy during transmission, thereby improving the transmission efficiency of the entire system. At the same time, the entire mechanism is more compact, saving space, and also improving the overall rigidity and stability of the machine tool. The C-axis transmission machine is fixedly connected to the C-axis, ensuring the accuracy and stability of the rotational movement and improving the accuracy of the processed parts.

[0013] The above-mentioned eccentric five-axis machine tool can be further configured as follows: The gear assembly includes a driving gear installed in the second installation cavity and connected to the central axis. One end of the transmission shaft is located in the second installation cavity and is provided with a driven gear. A transmission gear is provided between the driving gear and the transmission gear.

[0014] Adopting the above technical solution, by setting the driving gear, the driven gear and the transmission gear, multi-stage gear transmission can be achieved, thereby improving the transmission efficiency. The driving gear drives the driven gear to rotate, and the driven gear then transmits the power to other components through the transmission gear, reducing energy loss. Multi-stage gear transmission can disperse the load and reduce the burden on a single gear, thereby enhancing the stability of the system and enabling the gear to still operate stably when bearing high loads.

[0015] The above-mentioned eccentric five-axis machine tool can be further configured as follows: The A-axis is provided with a baffle for shielding dust at the first installation cavity and the second installation cavity.

[0016] Adopting the above technical solution, the baffle can effectively prevent impurities such as dust and debris from entering the first installation cavity and the second installation cavity, thereby protecting the internal mechanical components from pollution and wear, extending the service life of the equipment. By blocking the intrusion of external pollutants, the baffle helps to keep the inside of the A-axis clean, reducing the performance degradation or increased failure rate caused by pollution. Due to the dust-proof function of the baffle, the need for frequent cleaning and maintenance of the inside of the A-axis can be reduced, lowering the long-term maintenance cost and downtime.

[0017] The above-mentioned eccentric five-axis machine tool can be further configured as follows: A fixed table is provided on one side of the A-axis facing the rotating machine case. Mounting holes for fixing are provided on the fixed table, the fixed frame, and the side of the A-axis away from the fixed table.

[0018] Adopting the above technical solution, by setting a fixed table on one side of the A-axis and providing mounting holes for fixing on the fixed table, the fixed frame, and the side of the A-axis away from the fixed table, a firm connection between the A-axis and the rotating machine case can be achieved. This design ensures the stability of the A-axis during operation, reducing displacement or loosening caused by vibration or impact.

[0019] The beneficial effects of the present utility model: By setting a fixed frame on one side of the A-axis and installing a rotating shaft on the fixed frame, the space on one side of the A-axis is reduced. At the same time, the C-axis is eccentrically arranged on the side of the A-axis close to the fixed frame, greatly increasing the overall processing space on the workbench. Through the precise cooperation of the sliding bottom plate and the sliding base, the processing angle can be adjusted without changing the position of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present utility model;

[0021] Figure 2 is the structural explosion diagram of the present utility model;

[0022] Figure 3 is the rear view of the A-axis of the present utility model;

[0023] Figure 4 is the sectional view of the A-axis of the present utility model;

[0024] Figure 5 is the enlarged view of the structure at A of the present utility model;

[0025] Label annotation: 1 - First fixed end, 2 - Second fixed end, 3 - A-axis, 4 - C-axis, 5 - Sliding base plate, 6 - Sliding base, 7 - Sliding groove, 8 - Connecting hole, 9 - Driving member, 10 - First installation cavity, 11 - Gear assembly, 12 - Second installation cavity, 13 - Transmission shaft, 14 - C-axis transmission, 15 - Connecting hole, 16 - Baffle, 17 - Mounting hole, 101 - Rotating chassis, 102 - Chassis base, 103 - Rotating flange, 201 - Fixed frame, 202 - First rotating shaft, 901 - Central axis, 1101 - Driving gear, 1102 - Driven gear, 1103 - Transmission gear. Detailed implementation mode

[0026] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0027] Such as Figures 1-3The present utility model provides the following technical solutions. An eccentric five-axis machine tool includes a first fixed end 1 and a second fixed end 2. An A-axis 3 is rotatably arranged between the first fixed end 1 and the second fixed end 2. A C-axis 4 is arranged at the top of the Y-axis. The second fixed end 2 includes a fixing frame. A first rotating shaft is provided on one side of the fixing frame. The C-axis 4 is arranged eccentrically on the side close to the fixing frame. A sliding structure capable of promoting the sliding adjustment of the device is also provided at the bottoms of the first fixed end 1 and the fixing frame. By arranging the fixing frame on one side of the A-axis 3 and installing a rotating shaft on the fixing frame, the space on one side of the A-axis 3 is reduced. At the same time, the C-axis 4 is arranged eccentrically on the side of the A-axis 3 close to the fixing frame, greatly increasing the overall processing space on the workbench, enabling the device to process large products, and increasing the applicability of the device. The sliding structure wraps a sliding bottom plate 5 arranged at the bottoms of the first fixed end 1 and the second fixed end 2. A sliding base 6 is connected to the bottom of the sliding bottom plate 5. A sliding groove 7 is formed on the surface of the sliding base 6. A plurality of connection holes 8 are formed in the sliding bottom plate 5. The sliding bottom plate 5 and the sliding base 6 can be slidably connected through a connecting piece between the sliding groove 7 and the connection holes 8. Through the precise cooperation of the sliding bottom plate 5 and the sliding base 6, the processing angle can be adjusted without changing the position of the workpiece, reducing the cumulative error caused by multiple clamping, thereby improving the processing accuracy and finely adjusting the position of the workpiece so that the workpiece can be processed at the best angle. The first fixed end 1 includes a rotating machine box. A machine box base is also provided between the rotating machine box and the sliding bottom plate 5. A rotating flange fixedly connected to the A-axis 3 is provided on the side of the replacement machine box facing the A-axis 3, enabling the rotating flange to drive the A-axis 3 to rotate. By arranging the rotating machine box at the upper end of the machine box base and arranging a rotating flange on one side of the rotating machine box to drive the A-axis 3 to rotate, products can be processed from multiple angles, increasing the applicability of the device.

[0028] As Figures 1-5The present invention provides the following technical solution: an eccentric five-axis machine tool. A first installation cavity 10 for installing a driving member 9 is provided inside the A-axis 3. A second installation cavity 12 for installing a gear assembly 11 is provided on the surface of the A-axis 3. The driving assembly extends into the second installation cavity and is provided with a central shaft, and the central shaft is connected to one end of the gear assembly 11. A transmission shaft 13 and a C-axis transmission 14 are also provided inside the A-axis 3. The end of the transmission shaft 13 is connected to the other end of the gear assembly 11 to enable the transmission shaft 13 to drive the C-axis transmission 14 to rotate. A fixing hole 15 is provided at the upper end of the C-axis transmission 14, and the C-axis 4 is fixedly connected to the C-axis transmission 14. Integrating the driving assembly, the central shaft and the gear assembly 11 inside the A-axis 3 realizes the effective transmission of power, reduces the loss of energy during transmission, thereby improving the transmission efficiency of the entire system. At the same time, it makes the entire mechanism more compact and saves space, and also improves the overall rigidity and stability of the machine tool. The C-axis transmission 14 is fixedly connected to the C-axis 4, ensuring the accuracy and stability of the rotational movement and improving the accuracy of the workpiece. The gear assembly 11 includes a driving gear installed in the second installation cavity 12 and connected to the central shaft. One end of the transmission shaft 13 is located in the second installation cavity 12 and is provided with a driven gear. A transmission gear is provided between the driving gear and the driven gear. By setting the driving gear, the driven gear and the transmission gear, multi-stage gear transmission can be realized, thereby improving the transmission efficiency. The driving gear drives the driven gear to rotate, and the driven gear then transmits the power to other components through the transmission gear, reducing energy loss. Multi-stage gear transmission can disperse the load and reduce the burden on a single gear, thereby enhancing the stability of the system and enabling the gear to maintain stable operation under high loads. The A-axis 3 is provided with a baffle 16 for shielding and dust-proofing at the first installation cavity 10 and the second installation cavity 12. The baffle 16 can effectively prevent impurities such as dust and debris from entering the first installation cavity 10 and the second installation cavity 12, thereby protecting the internal mechanical components from pollution and wear and extending the service life of the equipment. By blocking the intrusion of external pollutants, the baffle 16 helps to keep the inside of the A-axis 3 clean, reducing performance degradation or increased failure rate caused by pollution. Due to the dust-proof function of the baffle 16, the need for frequent cleaning and maintenance inside the A-axis 3 can be reduced, lowering the long-term maintenance cost and downtime. A fixed platform is provided on one side of the A-axis 3 facing the rotating machine case. Mounting holes 17 for fixing are provided on the fixed platform, the fixed frame and the side of the A-axis 3 away from the fixed platform. By providing a fixed platform on one side of the A-axis 3 and mounting holes 17 for fixing on the fixed platform, the fixed frame and the side of the A-axis 3 away from the fixed platform, a firm connection between the A-axis 3 and the rotating machine case can be realized. This design ensures the stability of the A-axis 3 during operation and reduces displacement or loosening caused by vibration or impact.

[0029] Advantages of the utility model: By arranging a fixing frame on one side of the A-axis 3 and installing a rotating shaft on the fixing frame, the space on one side of the A-axis 3 is reduced. At the same time, the C-axis 4 is eccentrically arranged on the side of the A-axis 3 close to the fixing frame, greatly increasing the overall processing space on the tabletop. Through the precise cooperation between the sliding bottom plate 5 and the sliding base 6, the processing angle can be adjusted without changing the position of the workpiece.

Claims

1. An eccentric five-axis machine tool, comprising a first fixed end and a second fixed end, wherein an A-axis is rotatably arranged between the first fixed end and the second fixed end, and a C-axis is arranged at the top of the A-axis, and is characterized in that: The second fixed end includes a fixing frame. A first rotating shaft is provided on one side of the fixing frame. The C-axis is eccentrically arranged near the fixing frame. A sliding structure capable of promoting the sliding adjustment of the device is also provided at the bottom of the first fixed end and the fixing frame.

2. The eccentric five-axis machine tool according to claim 1, wherein: The sliding structure wraps the sliding bottom plate provided at the bottom of the first fixed end and the second fixed end. A sliding base is connected to the bottom of the sliding bottom plate. A sliding groove is formed on the surface of the sliding base. A plurality of connection holes are formed in the sliding bottom plate. The sliding bottom plate and the sliding base can be slidably connected through a connecting member between the sliding groove and the connection holes.

3. The eccentric five-axis machine tool according to claim 2, characterized in that: The first fixed end includes a rotating chassis. A chassis base is also provided between the rotating chassis and the sliding bottom plate. A rotating flange fixedly connected to the A-axis is provided on one side of the replacement chassis facing the A-axis, so that the rotating flange can drive the A-axis to rotate.

4. The eccentric five-axis machine tool according to claim 3, wherein: A first installation cavity for installing a driving member is provided inside the A-axis. A second installation cavity for installing a gear assembly is formed on the surface of the A-axis. A central shaft extends from the driving assembly to the second installation cavity. The central shaft is connected to one end of the gear assembly. A transmission shaft and a C-axis transmission are also provided inside the A-axis. The end of the transmission shaft is connected to the other end of the gear assembly so that the transmission shaft can drive the C-axis transmission to rotate. A fixing hole is formed at the upper end of the C-axis transmission. The C-axis is fixedly connected to the C-axis transmission.

5. The eccentric five-axis machine tool according to claim 4, characterized in that: The gear assembly includes a driving gear installed in the second installation cavity and connected to the central shaft. A driven gear is provided at one end of the transmission shaft located in the second installation cavity. A transmission gear is provided between the driving gear and the transmission gear.

6. An eccentric five-axis machine tool according to any one of claims 1-5, characterized in that: The A-axis is provided with a baffle for shielding and dust prevention at the first installation cavity and the second installation cavity.

7. An eccentric five-axis machine tool according to any one of claims 1-5, characterized in that: A fixing platform is provided on one side of the A-axis facing the rotating chassis. Mounting holes for fixing are provided on the fixing platform, the fixing frame, and the side of the A-axis away from the fixing platform.

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