A CNC machining device for curved components

Abstract

A CNC machining device for a curved component comprises a frame and a gantry, and is characterized in that Y-axis tracks are arranged on both outer sides of the frame, the gantry is installed on the Y-axis tracks, a Z-axis moving device is installed on the gantry, and a transverse tool shaft device is installed on the Z-axis moving device. Compared with the prior art, the beneficial effects of the present invention are: there is no need to make a component model, as long as a program is compiled, and there is no need for four-axis linkage, as long as three-axis linkage is required, the tool shaft can rotate independently without linkage, and direct machining can be performed without moving back and forth in the X-axis direction. The cutter head can be combined in multiple ways according to the processing needs of the curved component, solving the problem of difficult programming of the existing four-axis linkage. No matter the cross section is circular or elliptical, the diameter is large or small, and the side is arc-shaped or S-shaped, as long as the program is compiled, the CNC machining device for the curved component of the present invention can process.

Description

Technical Field

[0001] The invention relates to a processing device, in particular to a numerical control processing device for a curved component. Background Art

[0002] With the rapid development of economy, people have higher and higher requirements for the quality of life, especially for the design and production of furniture, and they pay more attention to ergonomics and visual beauty. Therefore, there are more and more curved components on furniture, especially wooden furniture, such as chairs, tables and various wooden products. Although there are many curve processing equipment for furniture at present, such as vertical milling, engraving machine, copying lathe, etc., there is still a lack of ideal processing equipment for processing products such as Ming-style round chair armrests. Because the armrests of Ming-style round chairs are thick in the middle and gradually narrow towards both ends, and then enlarged at the ends, except for the enlarged parts at both ends, the other cross-sections of the armrests are required to be perfect circles and the diameters are different. The current processing method is vertical milling, engraving machine with four A one-quarter fillet knife is used to round the four corners. The armrests of the round chair processed in this way are either of the same thickness or manually processed. Although I have invented a profiling device and a method for making a curved component using the profiling device with patent number: 2016111941652, which can solve the above problems, the only defect of the device is that to make a product, a profiling component model must be made first. The profiling component model needs to be made manually, and the precision of manual production is difficult to achieve. If the component model is not well made and the precision is not achieved, the profiling curved component will also not be accurate. If the existing CNC equipment is used, four-axis linkage is required, and currently there are very few people who can program four-axis linkage, so it is still not ideal.

[0003] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0004] The object of the present invention is to provide a processing device for a curved member to overcome the above-mentioned technical defects.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a CNC processing equipment for curved components, including a frame and a gantry, wherein Y-axis tracks are arranged on both outer sides of the frame, the gantry is installed on the Y-axis tracks, and moving plate tracks are arranged on both inner sides of the frame, and a first moving plate and a second moving plate are arranged on the moving plate tracks, an active rotating device is installed on the first moving plate, and a driven rotating device is installed on the second moving plate, a Z-axis moving device is installed on the gantry, and a transverse knife shaft device is installed on the Z-axis moving device; the Z-axis moving device includes: a bracket, which is installed on the top of the gantry, a guide plate, which is installed on the vertical surface of the gantry through a guide rail, and a guide plate driving motor, which is connected to the guide plate through a ball screw to drive the guide plate to move up and down;

[0006] The horizontal knife shaft device includes: two bearing seats, which are installed on the guide plate, a knife shaft, which is installed on the bearing seat, and a knife shaft motor, which is used to drive the knife shaft to rotate. The knife shaft is equipped with a knife disc, and the knife disc has multiple combinations, and its total length is longer than twice the arch height of the curved member; the active rotating device includes: a rotating motor, which is installed on the first movable plate, at least one set of active rotating shaft, which is installed on the first movable plate and connected to the rotating motor through a synchronous belt, and a first clamp is installed on the active rotating shaft.

[0007] The driven rotating device comprises: at least one set of driven rotating shafts, which are mounted on the second movable plate, and a second fixture is mounted on the driven rotating shafts; and positioning screws are provided on both the first movable plate and the second movable plate.

[0008] Compared with the prior art, the beneficial effect of the present invention is that the CNC machining equipment of the curved component of the present invention does not need to make a component model. It only needs to compile a program, and does not need four-axis linkage. It only needs three-axis linkage. The tool axis can rotate independently without linkage, and it does not need to move back and forth in the X-axis direction. It can directly process. The tool disc can be combined in multiple ways according to the processing needs of the curved component, which solves the problem of difficult programming of the existing four-axis linkage, and effectively solves the processing problem of curved components such as the armrests of Ming-style round chairs, which require a perfect circle in cross section and have inconsistent diameters. Regardless of whether the cross section is circular or elliptical, the diameter is large or small, and the side is curved or S-shaped, as long as the program is compiled, the CNC machining equipment of the curved component of the present invention can process it. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the main structure of a CNC processing device for a curved component of the present invention;

[0010] Figure 2The figure is a schematic diagram of the top view of the structure of a CNC machining device for a curved component of the present invention. DETAILED DESCRIPTION

[0011] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0012] Embodiment: As shown in the figure, a CNC machining device for a curved member is provided, including a frame 1 and a gantry 7, Y-axis tracks 2 are arranged on both outer sides of the frame 1, the gantry 7 is mounted on the Y-axis tracks 2, moving plate tracks 3 are arranged on both inner sides of the frame 1, a first moving plate 4 and a second moving plate 6 are arranged on the moving plate tracks 3, an active rotating device is installed on the first moving plate 4, a driven rotating device is installed on the second moving plate 6, a Z-axis moving device is installed on the gantry 7, and a transverse knife shaft device is installed on the Z-axis moving device; the Z-axis moving device includes: a A bracket 8 is mounted on the top of the gantry 7, a guide plate 10 is mounted on the vertical surface of the gantry 7 through a guide rail, and a guide plate driving motor 9 is connected to the guide plate 10 through a ball screw to drive the guide plate 10 to move up and down; the horizontal knife shaft device includes: two bearing seats 11, which are mounted on the guide plate 10, a knife shaft 12, which is mounted on the bearing seat 11, and a knife shaft motor 16 for driving the knife shaft 12 to rotate, and a knife disc 15 is mounted on the knife shaft 12, and the knife disc 15 has multiple combinations, and its total length is longer than twice the arch height of the curved member;

[0013] The active rotating device includes: a rotating motor 22, which is mounted on the first moving plate 4, at least one set of active rotating shafts 17, which are mounted on the first moving plate 4 and connected to the rotating motor 22 through a synchronous belt, and a first fixture 18 is mounted on the active rotating shaft 17; the driven rotating device includes: at least one set of driven rotating shafts 19, which are mounted on the second moving plate 6, and a second fixture 28 is mounted on the driven rotating shaft 19, and positioning screws 20 are provided on the first moving plate 4 and the second moving plate 6; when processing is required, the program is compiled to set the curve structure One end of the curved component is fixed to the first clamp 18, and the other end of the curved component is fixed to the second clamp 28. The positioning screws 20 on the first movable plate 4 and the second movable plate 6 are tightened and positioned. The cutter disc 15 is installed on the cutter shaft 12, and the equipment is turned on. The cutter shaft 12 rotates, and a rotating motor 22 rotates, driving the curved component and the driven rotating shaft 19 to rotate together. The gantry 7 moves on the Y-axis track 2, and the guide plate drive motor 9 drives the guide plate 10 and the cutter shaft 12 to move up and down with the curved component. The program is completed and the curved component is also processed. This cycle is repeated.

Claims

1. A CNC machining device for a curved member, comprising a frame and a gantry, characterized in that: The frame is provided with Y-axis tracks on both outer sides, the gantry is installed on the Y-axis tracks, the frame is provided with moving plate tracks on both inner sides, the moving plate tracks are provided with a first moving plate and a second moving plate, the first moving plate is provided with an active rotating device, the second moving plate is provided with a driven rotating device, the gantry is provided with a Z-axis moving device, the Z-axis moving device is provided with a transverse knife shaft device; the Z-axis moving device comprises: a bracket, which is installed on the gantry, a guide plate, which is installed on the gantry through the guide rail On the vertical surface of the frame, there is a guide plate driving motor, which is connected to the guide plate through a ball screw to drive the guide plate to move up and down; the horizontal knife shaft device includes: two bearing seats, which are installed on the guide plate, a knife shaft, which is installed on the bearing seat, and a knife shaft motor for driving the knife shaft to rotate; the active rotating device includes: a rotating motor, which is installed on the first movable plate, at least one set of active rotating shaft, which is installed on the first movable plate and connected to the rotating motor through a synchronous belt, and a first clamp is installed on the active rotating shaft.

2. A CNC machining device for a curved member as claimed in claim 1, characterized in that: The driven rotating device comprises: at least one set of driven rotating shafts, which are mounted on the second movable plate, and a second fixture is mounted on the driven rotating shafts.

3. The CNC machining equipment for curved components according to claim 1, characterized in that: The first movable plate and the second movable plate are both provided with positioning screws.

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