Five-axis machine tool

Abstract

The utility model discloses a five-axis machine tool which comprises a machine tool base, an X-axis linear module and a Y-axis linear module are arranged on the machine tool base, a base is arranged on the X-axis linear module, a rotary frame and an A-axis rotary table for driving the rotary frame to rotate are rotationally installed on the base, and a Y-axis rotary table for driving the rotary frame to rotate is arranged on the Y-axis linear module. A carrying table and a C-axis rotary table for controlling the carrying table to rotate are arranged on the rotary frame; the portal frame is arranged on the machine tool base, a Z-axis linear module is arranged on the portal frame, and the Z-axis linear module is used for driving a laser, a galvanometer and a field lens to move in the Z-axis direction; the coordinate detection assembly is configured on the portal frame and used for detecting and confirming position coordinates of the surface of the workpiece on the carrying table; the five-axis laser processing machine tool can solve the problems that a traditional five-axis laser processing machine tool mostly obtains coordinates of a curved surface of a workpiece through off-line programming or manual teaching, efficiency is low, personal errors are prone to being introduced, and the traditional five-axis laser processing machine tool is difficult to adapt to rapid processing of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of machine tools, specifically to a five-axis machine tool. Background Technology

[0002] With the increasing demand for precision manufacturing, five-axis machine tools are being used more and more widely in aerospace, automotive molds, and electronics manufacturing, especially in the efficient machining of complex curved surface parts, where they are irreplaceable. However, when existing five-axis laser machining tools process curved workpieces, they mostly obtain the workpiece surface coordinates through offline programming or manual teaching, which is inefficient and prone to introducing human error, making it difficult to adapt to the rapid machining of workpieces. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a five-axis machine tool.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: a machine tool base, on which an X-axis linear module and a Y-axis linear module are provided. A base is configured on the X-axis linear module, and a rotating frame and an A-axis rotary table for driving the rotating frame to rotate are rotatably mounted on the base. A platform and a C-axis rotary table for controlling the rotation of the platform are configured on the rotating frame; a gantry frame is disposed on the machine tool base, and a Z-axis linear module is configured on the gantry frame. The Z-axis linear module is used to drive the laser, galvanometer, and field lens to move along the Z-axis direction; and a coordinate detection component is disposed on the gantry frame for detecting and confirming the position coordinates of the workpiece surface located on the platform.

[0005] In the preferred embodiment of the above-mentioned five-axis machine tool, the coordinate detection component includes at least a drive device and a probe driven by the drive device along the Z-axis direction.

[0006] In the preferred embodiment of the above-mentioned five-axis machine tool, the drive device includes a cylinder disposed on the gantry, a slide rail vertically disposed on the gantry, and a slider slidably disposed on the slide rail, wherein the extended shaft end of the cylinder is connected to the slider, and the probe is disposed at the bottom of the slider.

[0007] In the preferred embodiment of the above-mentioned five-axis machine tool, a CCD coaxial vision system facing the stage is configured on the gantry.

[0008] In the preferred embodiment of the above-mentioned five-axis machine tool, the base is equipped with an electromagnetic brake for locking and limiting the rotating frame.

[0009] In the preferred embodiment of the above-mentioned five-axis machine tool, a first wire-passing hole and a second wire-passing hole are provided through the machine tool base.

[0010] In the preferred embodiment of the above-mentioned five-axis machine tool, both the machine tool base and the gantry are made of marble.

[0011] The beneficial effects of this utility model are that the rotating frame is controlled to rotate along the X-axis by the A-axis turntable, and the stage is controlled to rotate circumferentially on the rotating frame by the C-axis turntable. The galvanometer system responds quickly and controls the deflection of the laser beam, so that the laser beam can be focused on different positions on the surface of the workpiece, thereby achieving high-precision processing of the workpiece. It has the characteristics of high workpiece processing accuracy and high efficiency, and is practical. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This diagram shows the connection relationship between the base and the platform.

[0015] Figure 4 This is a schematic diagram of the coordinate detection component;

[0016] Figure 5 This is a partial structural diagram of the machine tool base;

[0017] In the figure: machine tool base 1, first wire guide hole 11, second wire guide hole 12, X-axis linear module 2, Y-axis linear module 3, base 4, rotating frame 5, A-axis rotary table 6, C-axis rotary table 7, platform 8, gantry 9, Z-axis linear module 10, laser 11, galvanometer 12, field lens 13, coordinate detection assembly 14, probe 141, cylinder 142, slide rail 143, slider 144, CCD coaxial vision system 15, electromagnetic brake 16. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1 to 5 As shown, the five-axis machine tool of this utility model includes: a machine tool base 1, on which an X-axis linear module 2 and a Y-axis linear module 3 are provided; a base 4 is arranged on the X-axis linear module 2; a rotary frame 5 and an A-axis rotary table 6 for driving the rotary frame 5 to rotate are rotatably mounted on the base 4; a platform 8 and a C-axis rotary table 7 for controlling the rotation of the platform 8 are arranged on the rotary frame 5; a gantry 9 is arranged on the machine tool base 1; a Z-axis linear module 10 is arranged on the gantry 9; the Z-axis linear module 10 is used to drive the laser 11, the galvanometer 12 and the field lens 13 to move along the Z-axis direction; and a coordinate detection component 14 is arranged on the gantry 9 for detecting and confirming the position coordinates of the workpiece surface on the platform 8.

[0022] See Figures 1 to 3 The Y-axis linear module 3 is mounted on the machine tool base 1. The X-axis linear module 2 is mounted on the Y-axis linear module 3 and is driven to move along the Y-axis direction by the Y-axis linear module 3. The X-axis linear module 2 is used to drive the base 4 to move along the X-axis direction. The base 4 is generally concave in shape. A rotating frame 5 is rotatably mounted on the base 4. The rotating frame 5 is driven to rotate by the A-axis rotary table 6 mounted on the base 4. The A-axis rotary table 6 is an A-axis DD motor module. The rotating frame 5 is equipped with a platform 8 for fixing the workpiece and a C-axis rotary table 7 for controlling the rotation of the platform 8. The C-axis rotary table 7 is a C-axis DD motor module.

[0023] It should be noted that the Y-axis linear module 3 is a Y-axis ironless double-motor linear module. The ironless linear motor contained in the Y-axis ironless double-motor linear module has the characteristics of no cogging effect, low friction and low inertia, which can achieve high-precision linear motion. In addition, the double-motor design allows the module to bear a larger load and is more stable.

[0024] See Figure 1 , Figure 2 The machine tool base 1 is equipped with a gantry 9, and a Z-axis linear module 10 is set on the gantry 9. The Z-axis linear module 10 is equipped with a laser 11, a galvanometer 12 and a field lens 13. The Z-axis linear module 10 can drive the laser 11, the galvanometer 12 and the field lens 13 to move vertically along the Z-axis. The laser 11 is used to emit a collimated laser beam toward the galvanometer 12. After the galvanometer 12 adjusts the collimated laser beam, it is reflected toward the field lens 13, and finally the laser beam is emitted through the field lens 13.

[0025] See Figure 2 , Figure 4 When the workpiece surface is curved, in order to ensure the processing effect of the laser beam on the workpiece surface, it is necessary to test the position of the workpiece surface. The coordinate detection component 14 is used to detect the position coordinates of the workpiece surface. The external mapping system processes the workpiece surface data transmitted by the coordinate detection component 14 to obtain the workpiece surface contour, so that the laser beam emitted by the field lens 13 can more accurately process the workpiece.

[0026] Specifically, when the workpiece surface is flat, there is no need to use the coordinate detection component 14 to detect the workpiece surface position information. When the workpiece surface is curved, the coordinate detection component 14 is required to detect the workpiece surface position information. When cutting, drilling, or welding the workpiece, the workpiece is first fixed on the stage 8. The Y-axis linear module 3 and X-axis linear module 2 are used to drive the workpiece to directly below the field lens 13. Then, the Z-axis linear module 10 is used to control the field lens 13 to move vertically along the Z-axis. At the same time, the A-axis turntable 6 and C-axis turntable 7 are used to focus the laser beam emitted by the field lens 13 on the workpiece to be processed, thereby realizing the processing of the workpiece. In this application, the A-axis turntable 6 controls the rotating frame 5 to rotate along the X-axis, and the C-axis turntable 7 controls the stage to rotate circumferentially on the rotating frame 5. The galvanometer 12 system responds quickly and precisely controls the deflection of the laser beam, so that the laser beam can be focused on different positions on the workpiece surface, thereby realizing high-precision processing of the workpiece. It has the characteristics of high workpiece processing accuracy and high efficiency, and is practical.

[0027] In one or more embodiments, the coordinate detection component 14 includes at least a driving device and a probe 141 driven by the driving device along the Z-axis direction; the driving device includes a cylinder 142 disposed on the gantry 9, a slide rail 143 vertically disposed on the gantry 9, and a slider 144 slidably disposed on the slide rail 143, wherein the extended shaft end of the cylinder 142 is connected to the slider 144, and the probe 141 is disposed at the bottom of the slider 144.

[0028] See Figure 1 , Figure 2 , Figure 4 The probe 141 is connected to an external measuring device via a probe head. The cylinder 142 drives the slider 144 to move on the slide rail 143, so that the bottom end of the probe 141 contacts the surface of the workpiece. At the same time, the A-axis turntable 6 controls the rotation of the rotating frame 5 and the C-axis turntable 7 controls the rotation of the platform 8, so that the workpiece on the platform 8 can move and the probe 141 contacts the surface of the workpiece at different positions. The external mapping system processes the information collected by the probe 141 to obtain the position contour information of the workpiece surface, so that the focused laser beam emitted by the field lens 13 can more accurately process the surface of the workpiece, thereby improving the processing accuracy and processing effect of the workpiece in this application.

[0029] In one or more embodiments, a CCD coaxial vision system 15 is disposed on the gantry 9 facing the stage 8.

[0030] See Figure 2 The CCD vision system is set coaxially with the laser beam to achieve precise alignment between visual positioning and laser processing. The CCD vision system is used to acquire workpiece images in real time and perform precise processing to provide accurate positioning information for laser-processed workpieces. The CCD vision system includes at least an industrial camera.

[0031] In one or more embodiments, the base 4 is provided with an electromagnetic brake 16 for locking and limiting the rotation frame 5.

[0032] See Figure 3 The electromagnetic brake 16 is used to hold and fix the rotating frame 5, so that the rotating frame 5 controlled by the AC turntable can be fixed in a predetermined position, thereby improving the accuracy and stability of the focused laser beam for workpiece processing.

[0033] In one or more embodiments, a first wire-passing hole 11 and a second wire-passing hole 12 are provided through the machine tool base 1.

[0034] See Figure 5 The first through hole 11 is used for the signal cable, and the second through hole 12 is used for the power cable. By separating the signal cable and the power cable, the problem of interference signals generated in the signal cable due to the electromagnetic field generated by the power cable can be avoided, ensuring the accuracy and stability of the signal transmission and avoiding equipment malfunctions and data errors caused by signal interference.

[0035] In one or more embodiments, both the machine tool base 1 and the gantry 9 are made of marble. It should be noted that the machine tool base 1 and the gantry 9 made of marble have good thermal stability and rigidity, ensuring the stability of the workpiece during long-term processing. At the same time, the machine tool base 1 can withstand a large processing load and is not easily affected by external environmental interference.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A five-axis machine tool, characterized by, The machine tool base is provided with an X-axis linear module and a Y-axis linear module, the X-axis linear module is provided with a base, the base is rotatably provided with a rotating frame and an A-axis rotary table for driving the rotating frame to rotate, the rotating frame is provided with a carrier and a C-axis rotary table for controlling the carrier to rotate; A gantry is arranged on the machine tool base, and the gantry is provided with a Z-axis linear module for driving a laser, a galvanometer and a field lens to move along the Z-axis direction; A coordinate detection assembly is arranged on the gantry and is used for detecting and confirming the position coordinates of the workpiece surface on the carrier. The coordinate detection assembly at least includes a driving device and a probe driven by the driving device along the Z-axis direction.

2. The five-axis machine tool according to claim 1, characterized in that: The driving device includes a cylinder arranged on the gantry, a slide rail vertically arranged on the gantry, a sliding block arranged on the slide rail, wherein the extension shaft end of the cylinder is connected with the sliding block, and the probe is arranged at the bottom of the sliding block.

3. The five-axis machine tool according to claim 2, characterized in that: The gantry is provided with a CCD coaxial vision system facing the carrier.

4. The five-axis machine tool of claim 1, wherein: The base is provided with an electromagnetic brake for clamping and limiting the rotating frame.

5. The five-axis machine tool of claim 1, wherein: The machine tool base is provided with a first wire hole and a second wire hole.

6. The five-axis machine tool of claim 1, wherein: The machine tool base and the gantry are made of marble.

7. The five-axis machine tool of claim 1, wherein: ​

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