Novel double-DD five-axis machine equipment

Abstract

The invention is suitable for the technical field of five-axis machining, and provides novel double-DD five-axis machine equipment which comprises a large bottom plate, a tailstock, a driving shaft A and a cradle shaft C. The cradle shaft C is connected with the driving shaft A and the tailstock through screws, the driving shaft A and the tailstock are further locked on the large bottom plate through screws, a working disc face is installed in the middle of the top end of the cradle shaft C, and the working disc face is connected with the working disc face. The driving shaft A comprises a cylinder body casting and a rotary supporting mechanism arranged in the cylinder body casting, the end of the rotary supporting mechanism is connected with the cradle shaft C, the cradle shaft C comprises a cradle casting and a built-in driving mechanism and drives the working disc face to synchronously rotate at a high speed under the condition that the rotary mechanism rotates, and the brake mechanism is installed in the driving shaft A and the cradle shaft C; the working disc surface stops rotating; according to the equipment, the machining time is shortened, the machining efficiency is improved, the production cost is reduced, the machining precision is improved through full-closed-loop feedback control, and the precision and the CPK value stability can be guaranteed when large products are machined.

Description

Technical Field

[0001] The invention belongs to the technical field of five-axis machining, and in particular relates to a novel double-DD five-axis machine equipment. Background Art

[0002] At present, when processing complex workpieces, multiple workstations are usually used for processing and realization. At the same time, milling, turning, grinding, discharge and other equipment are applied to realize the processing of complex 3D workpieces. After using five-axis equipment for processing, the A / C axis can be adjusted to multiple angles according to the processing program. Only one workstation is needed to complete the processing of five sides of the product, which not only improves the processing efficiency, but also ensures the overall processing precision.

[0003] However, the existing five-axis equipment not only has high overall cost during processing, but also has high requirements on assembly and debugging, processing programming and operator skills. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a new type of dual DD five-axis machine equipment, which utilizes direct drive technology to achieve high responsiveness and improve processing efficiency, and cooperates with the three axes of the machine tool to realize true five-axis RTCP linkage technology, which can realize precision processing of complex and special-shaped workpiece D surfaces, and solves the problems existing in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: a novel double DD five-axis machine device includes a large base plate, a tailstock, a drive A axis and a cradle C axis, and also includes: The cradle C-axis is connected to the drive A-axis and the tailstock by screws, and the drive A-axis and the tailstock are also locked on the large bottom plate by screws, and the large bottom plate is fixed on the CNC machine tool as a whole; A working disc is installed at the middle of the top end of the C axis of the cradle to fix the processed products and jigs; The driving A-axis includes a cylinder casting and a rotating support mechanism arranged in the cylinder casting, and the end of the rotating support mechanism is connected to the cradle C-axis to drive the cradle C-axis to move in the working state to adjust the inclination angle of the cradle C-axis; The cradle C-axis includes a cradle casting and a built-in driving mechanism, and drives the working disk surface to rotate synchronously at high speed when the rotating mechanism rotates, so as to facilitate five-axis processing of the product; The brake mechanism is installed in the driving A axis and the cradle C axis, and is used to stop the rotation of the working disk surface, complete the braking and product rotation stopping actions.

[0006] Preferably, the rotary support mechanism comprises a lower bearing, an A-axis core shaft, an A-axis coil rotor, a cross roller bearing and a rotary oil seal; The lower bearing, A-axis core shaft, A-axis coil rotor and cross roller bearing are all arranged in the cylinder casting, and the A-axis coil rotor generates an induced current after being energized; The A-axis spindle is supported by lower bearings and cross roller bearings on both sides, so as to drive the cradle C-axis to move when the A-axis spindle rotates; A rotary oil seal is also arranged on the outer side of the cross roller bearing.

[0007] Preferably, the driving mechanism comprises a C-axis coil rotor, a C-axis cross roller, a second rotary oil seal, a C-axis mandrel and a bearing pressure plate; The C-axis coil rotor, C-axis cross roller, second rotary oil seal and C-axis core shaft are arranged in the cradle casting from outside to inside, and the C-axis coil rotor, C-axis cross roller, second rotary oil seal and C-axis core shaft are arranged coaxially with the working disk surface; The bearing pressure plate is arranged between the cradle casting and the working disk surface, and is fixed to the cradle casting by screws. The cradle casting is also connected to the A-axis core shaft.

[0008] Preferably, the brake mechanism comprises brake 1, piston base plate 1, brake 2, brake pads and piston base plate 2; Wherein, the brake 1 and the piston bottom plate 2 are arranged in the driving A axis, and the piston bottom plate 1, the brake 2 and the brake pad are arranged in the cradle C axis; The piston bottom plate 1 and the brake 2 press the brake pad tightly under working condition to stop the rotation of the brake pad.

[0009] Preferably, a bearing is installed at the bottom of the C-axis mandrel, the bearing is connected to a bearing seat 1, and a circular grating 1 is arranged on the side of the bearing seat 1; A second bearing seat is installed between the A-axis core shaft and the A-axis coil rotor, and a second circular grating is arranged on the outer side of the second bearing seat; An outlet wire fixing plate is installed on the outer side of the driving A shaft.

[0010] Preferably, the driving A-axis adopts a direct-drive DD motor power mode to drive the cradle C-axis to rotate 360°.

[0011] Preferably, the cradle C-axis adopts a direct-drive DD motor power mode to drive the product on the working disk to rotate 360° at high speed.

[0012] A novel dual-DD five-axis machine device provided by an embodiment of the present invention has the following beneficial effects: 1) Shortened processing time, improved processing efficiency, and reduced production costs; 2) Circular grating 1 and 2 realize full closed-loop feedback control, which can achieve a rotation accuracy of 5 arc seconds; 3) The high-rigidity structure of the tailstock support can ensure the accuracy and CPK value stability when processing large products such as 15-inch notebook tailstocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a novel dual-DD five-axis machine device provided by an embodiment of the present invention; Figure 2 A top view of a novel dual DD five-axis machine device provided by an embodiment of the present invention; Figure 3 A front view of a novel dual DD five-axis machine device provided by an embodiment of the present invention; In the attached drawings: 1-brake one; 2-lower bearing; 3-A-axis core shaft; 4-A-axis coil rotor; 5-cylinder casting; 6-cross roller bearing; 7-rotary oil seal one; 8-cradle casting; 9-C-axis coil rotor; 10-C-axis cross roller; 11-rotary oil seal two; 12-C-axis core shaft; 13-working disk surface; 14-bearing pressure plate; 15-tail stock; 16-piston base plate one; 17-brake two; 18-bearing; 19-bearing seat one; 20-circular grating one; 21-large base plate; 22-brake pad; 23-bearing seat two; 24-circular grating two; 25-piston base plate two; 26-outlet fixing plate; 27-drive A axis; 28-cradle C axis. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0016] like Figure 1-Figure 3As shown, it is a structural diagram of a novel double DD five-axis machine device provided by an embodiment of the present invention, including a large base plate 21, a tailstock 15, a drive A-axis 27 and a cradle C-axis 28, the cradle C-axis 28 is connected to the drive A-axis 27 and the tailstock 15 by screws, and the drive A-axis 27 and the tailstock 15 are also locked on the large base plate 21 by screws, and the large base plate 21 is fixed on the CNC machine tool as a whole; a working disk 13 is installed at the middle position of the top of the cradle C-axis 28 for fixing the processed products and jigs; the drive A-axis 27 includes a cylinder casting 5 and a cylinder casting arranged on the cylinder casting The rotating support mechanism in the part 5, the end of the rotating support mechanism is connected to the cradle C-axis 28, and is used to drive the cradle C-axis 28 to move when working to adjust the inclination angle of the cradle C-axis 28; the cradle C-axis 28 includes a cradle casting 8 and a built-in driving mechanism, and drives the working disk 13 to rotate synchronously at high speed when the rotating mechanism rotates, so as to facilitate five-axis processing of the product; it also includes a braking mechanism, which is installed in the driving A-axis 27 and the cradle C-axis 28, and is used to stop the rotation of the working disk 13, completing the braking and stopping the rotation of the product.

[0017] In one embodiment of the present invention, the driving A-axis 27 adopts a direct-drive DD motor power mode to drive the cradle C-axis 28 to rotate 360°; the cradle C-axis 28 adopts a direct-drive DD motor power mode to drive the product on the working disk 13 to rotate 360° at high speed.

[0018] like Figure 1 As shown, as a preferred embodiment of the present invention, the rotary support mechanism includes a lower bearing 2, an A-axis core shaft 3, an A-axis coil rotor 4, a cross roller bearing 6 and a rotary oil seal 7; The lower bearing 2, the A-axis core shaft 3, the A-axis coil rotor 4 and the cross roller bearing 6 are all arranged in the cylinder casting 5, and the A-axis coil rotor 4 generates an induced current after being energized; The A-axis spindle 3 is supported by the lower bearings 2 and the cross roller bearings 6 on both sides, so as to drive the cradle C-axis 28 to move when the A-axis spindle 3 rotates; A rotating oil seal 7 is also arranged on the outer side of the cross roller bearing 6 .

[0019] In one example of the present invention, the A-axis coil rotor 4 generates an induced current after being energized, driving the A-axis core shaft 3 to rotate at high speed. The A-axis core shaft 3 is supported by the cross roller bearing 6 and the lower bearing 2, thereby driving the cradle C-axis 28 to tilt.

[0020] like Figure 1 As shown, as another preferred embodiment of the present invention, the driving mechanism includes a C-axis coil rotor 9, a C-axis cross roller 10, a rotary oil seal 2 11, a C-axis core shaft 12 and a bearing pressure plate 14; The C-axis coil rotor 9, C-axis cross roller 10, rotary oil seal 2 11 and C-axis core shaft 12 are arranged in the cradle casting 8 from outside to inside, and the C-axis coil rotor 9, C-axis cross roller 10, rotary oil seal 2 11 and C-axis core shaft 12 are arranged coaxially with the working disk surface 13; The bearing pressure plate 14 is arranged between the cradle casting 8 and the working disk surface 13 and is fixed to the cradle casting 8 by screws. The cradle casting 8 is also connected to the A-axis core shaft 3.

[0021] In one example of the present invention, the cradle casting 8 is connected to the A-axis core shaft 3 and the tailstock 15 respectively by screws, and the C-axis coil rotor 9 generates high-speed rotational power to drive the working disk surface 13 to rotate at high speed. The product and the fixture are locked on the working disk surface 13 by screws to facilitate five-axis machining of the product.

[0022] like Figure 1 As shown, as another preferred embodiment of the present invention, the brake mechanism includes a brake 1, a piston bottom plate 16, a brake 2 17, a brake pad 22 and a piston bottom plate 25; The brake 1 and the piston bottom plate 25 are arranged in the drive A shaft 27, and the piston bottom plate 1 16, the brake 2 17 and the brake pad 22 are arranged in the cradle C shaft 28; The piston bottom plate 16 and the brake 2 17 press the brake pad 22 in the working state to stop the rotation.

[0023] In one embodiment of the present invention, the brake 2 17 moves up and down in the piston base plate 16 after being ventilated, pressing the brake pad 22 to stop the rotation. The brake pad 22 is locked on the C-axis core shaft 12 by screws, so that the C-axis core shaft 12 and the working disk surface 13 stop rotating, completing the braking and product rotation stopping action.

[0024] like Figure 1 and Figure 3 As shown, as another preferred embodiment of the present invention, a bearing 18 is installed at the bottom of the C-axis core shaft 12, the bearing 18 is connected to a bearing seat 19, and a circular grating 20 is arranged on the side of the bearing seat 19.

[0025] In one example of the present invention, a bearing seat 23 is installed between the A-axis core shaft 3 and the A-axis coil rotor 4, a circular grating 24 is arranged on the outer side of the bearing seat 23, and a wire fixing plate 26 is installed on the outer side of the driving A-axis 27 to facilitate wiring as needed.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of double DD five-axis machine equipment, including a large base plate, a tailstock, a drive A axis and a cradle C axis, characterized in that: Also includes: The cradle C-axis is connected to the drive A-axis and the tailstock by screws, and the drive A-axis and the tailstock are also locked on the large bottom plate by screws, and the large bottom plate is fixed on the CNC machine tool as a whole; A working disc is installed at the middle of the top end of the C axis of the cradle to fix the processed products and jigs; The driving A-axis includes a cylinder casting and a rotating support mechanism arranged in the cylinder casting, and the end of the rotating support mechanism is connected to the cradle C-axis to drive the cradle C-axis to move in the working state to adjust the inclination angle of the cradle C-axis; The cradle C-axis includes a cradle casting and a built-in driving mechanism, and drives the working disk surface to rotate synchronously at high speed when the rotating mechanism rotates, so as to facilitate five-axis processing of the product; The brake mechanism is installed in the driving A axis and the cradle C axis, and is used to stop the rotation of the working disk surface, complete the braking and product rotation stopping actions.

2. According to the novel double DD five-axis machine equipment of claim 1, it is characterized in that: The rotary support mechanism includes a lower bearing, an A-axis core shaft, an A-axis coil rotor, a cross roller bearing and a rotary oil seal; The lower bearing, A-axis core shaft, A-axis coil rotor and cross roller bearing are all arranged in the cylinder casting, and the A-axis coil rotor generates an induced current after being energized; The A-axis spindle is supported by lower bearings and cross roller bearings on both sides, so as to drive the cradle C-axis to move when the A-axis spindle rotates; A rotary oil seal is also arranged on the outer side of the cross roller bearing.

3. According to the novel double DD five-axis machine equipment of claim 2, it is characterized in that: The driving mechanism includes a C-axis coil rotor, a C-axis cross roller, a second rotary oil seal, a C-axis mandrel and a bearing pressure plate; The C-axis coil rotor, C-axis cross roller, second rotary oil seal and C-axis core shaft are arranged in the cradle casting from outside to inside, and the C-axis coil rotor, C-axis cross roller, second rotary oil seal and C-axis core shaft are arranged coaxially with the working disk surface; The bearing pressure plate is arranged between the cradle casting and the working disk surface, and is fixed to the cradle casting by screws. The cradle casting is also connected to the A-axis core shaft.

4. According to the novel double DD five-axis machine equipment of claim 1, it is characterized in that: The brake mechanism comprises brake 1, piston base plate 1, brake 2, brake pads and piston base plate 2; Wherein, the brake 1 and the piston bottom plate 2 are arranged in the driving A axis, and the piston bottom plate 1, the brake 2 and the brake pad are arranged in the cradle C axis; The piston bottom plate 1 and the brake 2 press the brake pad tightly under working condition to stop the rotation of the brake pad.

5. According to the novel double DD five-axis machine equipment of claim 3, it is characterized in that: A bearing is installed at the bottom of the C-axis mandrel, the bearing is connected to a bearing seat 1, and a circular grating 1 is arranged on the side of the bearing seat 1; A second bearing seat is installed between the A-axis core shaft and the A-axis coil rotor, and a second circular grating is arranged on the outer side of the second bearing seat; An outlet wire fixing plate is installed on the outer side of the driving A shaft.

6. A novel dual DD five-axis machine device according to claim 1, characterized in that: The driving A-axis adopts a direct-drive DD motor power mode to drive the cradle C-axis to rotate 360°.

7. A novel dual DD five-axis machine device according to claim 1, characterized in that: The cradle C-axis adopts direct-drive DD motor power to drive the product on the working disk to rotate 360° at high speed.

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