Additive and subtractive composite double-spindle multi-spindle vertical machining tool

Abstract

The utility model relates to an additive and subtractive composite double-spindle multi-spindle vertical processing machine tool, belongs to the technical field of processing equipment, solves the problem of loading and unloading errors caused by replacement of different processing equipment when parts with complex structures cannot be processed in the prior art, and improves the processing efficiency on the basis of ensuring the processing quality. And the part machining production efficiency is improved, and the machining cost is reduced. The vertical machining tool comprises a tool body frame, a rotary workbench, a three-axis movement assembly and a five-axis movement assembly. The three-axis movement assembly comprises a machine tool additive machining main shaft. The five-axis movement assembly comprises a machine tool material reduction main shaft. The axes of the three-axis movement assembly and the five-axis movement assembly are perpendicular to the table top of the rotary workbench. The machining machine tool can meet the requirement for additive machining and subtractive machining of parts, two machining modes can be freely switched, and repeated clamping and positioning are not needed; in addition, the machine tool is of a totally-closed symmetrical structure and has high rigidity and high stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to processing equipment technical field, concretely relates to a kind of double-spindle multi-axis vertical processing machine tool of additive and subtractive composite. BACKGROUND

[0002] Five-axis linkage processing machine tool, also known as five-axis machining tool, is a special processing equipment with high technology content and high precision, which is used for processing complex curved surface. This processing machine tool has important influence on many industries such as aviation, aerospace, military, scientific research, precision instruments and high-precision medical equipment. Five-axis linkage numerical control processing machine tool is a key means to solve the processing needs of impeller, blade, marine propeller, heavy generator rotor, turbine rotor and large diesel engine crankshaft.

[0003] Subtractive machining produces parts of desired size by removing material. Common subtractive machining methods include turning, milling and grinding. Subtractive machining often has high machining precision and can be performed at room temperature. Additive manufacturing gradually forms a three-dimensional entity by layering or adding materials. Additive machining has high material utilization rate and cost and efficiency advantages when processing parts with complex structure.

[0004] Currently, five-axis machining tools on the market are usually single-spindle five-coordinate machining tools, which provide single-spindle milling function. When processing parts with complex structure, there is a situation of low efficiency or even inability to process. The additive manufacturing equipment on the market is usually a separate device. After additive manufacturing, it needs to be unloaded and clamped again before processing on the subtractive machining tool. This process introduces clamping positioning error and reduces processing efficiency. Especially in mass production, this processing method has been difficult to meet the market demand for high efficiency and low cost. UTILITY MODEL CONTENT

[0005] In view of the above problems, the utility model provides a double-spindle multi-axis vertical processing machine tool of additive and subtractive composite, which solves the problem of unloading error caused by replacement of different processing equipment when processing parts with complex structure in the prior art, improves the part processing production efficiency and reduces the processing cost on the basis of ensuring the processing quality.

[0006] The utility model provides a double-spindle multi-axis vertical processing machine tool of additive and subtractive composite, which includes bed frame, rotating workbench, three-axis motion assembly and five-axis motion assembly.

[0007] The three-axis motion assembly includes machine tool additive machining spindle. The five-axis motion assembly includes machine tool subtractive spindle.

[0008] The axes of the three-axis motion assembly and the five-axis motion assembly are perpendicular to the table surface of the rotating workbench.

[0009] Optionally, the rotary worktable is arranged at the center position of the machining tool.

[0010] Optionally, the five-axis movement assembly further comprises a machining tool; the machining tool is arranged at the end of the subtractive machining spindle.

[0011] Optionally, the X-axis guide rail is arranged at the top of the bed frame.

[0012] Optionally, the three-axis movement assembly further comprises X-axis movement component one, Y-axis guide rail one, Y-axis movement component one, Z-axis guide rail one and Z-axis movement component one arranged in sequence; the additive machining spindle is arranged at one end of the Z-axis movement component one.

[0013] Optionally, the five-axis movement assembly further comprises X-axis movement component two, Y-axis guide rail two, Y-axis movement component two, Z-axis guide rail two, Z-axis movement component two, C-axis orthogonal head and A-axis orthogonal head arranged in sequence; the subtractive machining spindle is arranged on the A-axis orthogonal head.

[0014] Optionally, the middle part of the X-axis movement component one and the X-axis movement component two are provided with mounting holes, and the Y-axis guide rail one and the Y-axis guide rail two are arranged in the mounting holes correspondingly.

[0015] Optionally, the additive machining spindle for additive machining of the workpiece to be machined is arranged at one end of the Z-axis movement component one of the three-axis movement assembly.

[0016] Optionally, the bed frame adopts a four-gantry closed integral frame structure.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects: the movement of the additive machining spindle 7 along the X, Y and Z three linear coordinate axis directions is provided by the each direction feeding mechanism, the movement of the subtractive machining spindle 13 along the X, Y and Z three linear coordinate axis directions and the movement of the C and A two rotary coordinate axis directions are provided, the additive and subtractive machining of the machine tool to the part can be met, the two machining modes can be switched freely, and the repeated clamping positioning is not needed.

[0018] In addition, the machine tool adopts a fully-closed symmetrical structure and has high rigidity and high stability. Meanwhile, the additive and subtractive spindles are used to machine the workpiece through the numerical control machining program, so that more flexible machining process can be realized, and the machining quality and machining efficiency of the workpiece can be improved in combination with the structural characteristics of the machine tool. The utility model is particularly suitable for machining the part with a complex structure and shape, greatly improves the part production and machining efficiency, and can significantly improve the economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings are only used for the purpose of showing the specific embodiments and are not considered as limiting the utility model.

[0020] Figure 1The utility model discloses a processing machine tool's front view;

[0021] Figure 2 The utility model discloses a processing machine tool's plan view;

[0022] Figure 3 The utility model discloses a processing machine tool's side view. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be explained that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict. In addition, the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0024] One specific embodiment of the utility model, such as Figures 1-3 , discloses a high-speed and high-efficiency vertical machining machine tool for subtractive composite, which comprises a bed frame 1, a rotating workbench 2, a vertical additive machining three-axis motion assembly and a vertical subtractive machining five-axis motion assembly.

[0025] The bed frame 1 comprises an operation platform and a track mounting frame; the track mounting frame comprises a first side, a second side and a top surface; the operation platform is arranged at the bottom between the first side and the second side, and the first side and the second side are both perpendicular to the operation platform; the first side, the second side and the top surface are symmetrically provided with two groups of tracks, and the tracks comprise Z-axis guides and X-axis guides; the first side and the second side are both provided with two groups of Z-axis guides which are symmetrically arranged; the Z-axis guides are perpendicular to the operation platform; the top surface is arranged at the top between the first side and the second side, and the top surface is provided with two groups of X-axis guides which are symmetrically arranged; and the X-axis guides are parallel to the operation platform.

[0026] The rotating workbench 2 is arranged at the center of the operation platform, and when in use, a workpiece to be machined 3 is installed on the rotating workbench 2.

[0027] The vertical additive machining three-axis motion assembly and the vertical subtractive machining five-axis motion assembly are both arranged on the X-axis guides.

[0028] The vertical additive machining three-axis motion assembly comprises an X-axis direction motion component one 4, a Y-axis guide one, a Y-axis direction motion component one 5, a Z-axis direction guide one, a Z-axis direction motion component one 6 and a machine tool additive machining spindle 7; and the machine tool additive machining spindle 7 is arranged at the bottom end of the Z-axis direction motion component one 6.

[0029] The five-axis motion assembly comprises X-axis motion component two 8, Y-axis guide rail two, Y-axis motion component two 9, Z-axis guide rail two, Z-axis motion component two 10, C-axis orthogonal swing head 11, A-axis orthogonal swing head 12, machine tool subtractive main shaft 13 and machining tool 14.

[0030] It can be understood that the C-axis is an axis rotating around the Z-axis, and the A-axis is an axis rotating around the X-axis.

[0031] In the above motion components:

[0032] The two ends of the X-axis motion component one 4 are respectively arranged on two groups of X-axis guide rails on the same side surface through sliding blocks, slide on the X-axis guide rails, and are driven by left and right linear motors; the two ends of the X-axis motion component two 8 are respectively arranged on two groups of X-axis guide rails on the same side surface through sliding blocks, slide on the two groups of X-axis guide rails, and are driven by left and right linear motors.

[0033] A mounting hole is arranged in the middle of the X-axis motion component one 4, and one group of Y-axis guide rail one is arranged on the two side walls of the mounting hole; the two ends of the X-axis motion component two 8 are respectively arranged on two groups of Y-axis guide rail two on the same side surface through sliding blocks, slide on the Y-axis guide rail two, and are driven by left and right linear motors.

[0034] The two side surfaces of the Y-axis motion component one 5 are respectively arranged on two groups of Y-axis guide rail one of the same mounting hole through sliding blocks, and are driven by the center of gravity by using upper and lower linear motors; the two side surfaces of the Y-axis motion component two 9 are respectively arranged on two groups of Y-axis guide rail two of the same mounting hole through sliding blocks, and are driven by the center of gravity by using upper and lower linear motors.

[0035] It can be understood that the center of gravity driving is to make the driving force and the force arm of the center of gravity of the driven object to be 0, so that the driving force only produces linear driving effect, and does not produce overturning.

[0036] Four Z-axis guide rails one are arranged in the Y-axis motion component one 5, arranged in a square layout, the Z-axis motion component one 6 is arranged on the four Z-axis guide rails one through sliding blocks, and is driven by the center of gravity by using left and right linear motors; four Z-axis guide rails two are arranged in the Y-axis motion component two 9, arranged in a square layout, the Z-axis motion component two 10 is arranged on the four Z-axis guide rails two through sliding blocks, and is driven by the center of gravity by using left and right linear motors.

[0037] The machine tool additive machining main shaft 7 is installed at the end of the Z-axis motion component one 6; the C-axis orthogonal swing head 11 is installed at the end of the Z-axis motion component two 10, the A-axis orthogonal swing head 12 is installed on the C-axis orthogonal swing head 11, and the machine tool subtractive machining main shaft 13 is arranged on the A-axis orthogonal swing head 12.

[0038] The C-axis orthogonal swing head 11 rotates around the axis of the Z-axis movement component two 10 as the rotation center; and the A-axis orthogonal swing head 12 swings along the extension direction of the axis of the X-axis movement component two 8.

[0039] The end of the machine tool subtractive machining spindle 13 is provided with a machining tool 14 for processing the workpiece 3 on both sides.

[0040] Further, the numerical control device 15 is electrically connected with the machine tool frame 1, and is used for inputting a control numerical control program and respectively controlling the three-axis movement assembly and the five-axis movement assembly on both sides, so as to realize the additive and subtractive machining of the additive machining spindle 7 and the subtractive machining spindle 13 on the workpiece 3.

[0041] Preferably, the bed frame adopts a four-gantry closed integral frame structure.

[0042] In order to realize the subtractive and additive machining under the same clamping, the vertical additive machining three-axis movement assembly and the vertical subtractive machining five-axis movement assembly share the same coordinate system. The numerical control device 15 can control the additive machining spindle 7 alone to perform the additive machining on the workpiece under the support of the vertical additive machining three-axis movement assembly, and can control the subtractive machining spindle 13 alone to perform the subtractive machining on the workpiece under the support of the vertical subtractive machining five-axis movement assembly. Therefore, when the machining process is formulated, the additive machining and subtractive machining characteristics can be fully utilized for process programming, and the machining code containing the subtractive machining process and the additive machining process is generated, and the numerical control system controls the subtractive machining spindle and the additive machining spindle to perform the machining after analyzing the corresponding code.

[0043] The double-spindle multi-axis linkage high-speed and high-efficiency vertical machining tool provided by the utility model can realize the additive and subtractive machining on the workpiece. Figure 1 As shown in the figure, the workpiece 3 is fixed on the rotary table 2 through a clamp, the machine tool additive machining spindle 7 performs the linear motion on the X, Y and Z axes of the machine tool through the X, Y and Z axis axial movement devices of the machine tool, so as to realize the additive machining on the workpiece 3; the machine tool subtractive spindle 13 realizes the linear motion on the X, Y and Z axes of the machine tool and the rotary motion around the X and Z axes through the X, Y and Z axis axial movement devices and the CA orthogonal swing head, so as to realize the subtractive machining on the workpiece 3. The numerical control device 15 controls the numerical control machining program to realize the three-axis linkage, the five-axis linkage and the eight-axis movement of the machine tool, and then realizes the additive and subtractive machining on the workpiece 3.

[0044] The above only describes the preferred embodiments of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A dual-spindle multi-axis vertical machining center for additive-subtractive hybrid machining, characterized by, The machine tool comprises a bed frame, a rotary table, a three-axis motion assembly and a five-axis motion assembly; The three-axis motion assembly comprises a machine tool additive machining spindle; the five-axis motion assembly comprises a machine tool subtractive spindle; The axes of the three-axis motion assembly and the five-axis motion assembly are perpendicular to the table top of the rotary table.

2. The machine tool according to claim 1, characterized in that, The bed frame adopts a four-gantry closed integral frame structure.

3. The machine tool according to claim 1, wherein The rotary table is arranged at the center of the machining machine tool.

4. The machine tool of claim 1 wherein, The five-axis motion assembly further comprises a machining tool; the machining tool is arranged at the end of the machine tool subtractive spindle.

5. The machine tool of claim 1 wherein, An X-axis guide rail is arranged on the top of the bed frame.

6. The machine tool of claim 1 wherein, The three-axis motion assembly further comprises an X-axis motion component one, an Y-axis guide rail one, an Y-axis motion component one, a Z-axis guide rail one and a Z-axis motion component one arranged in sequence; the additive machining spindle is arranged at one end of the Z-axis motion component one.

7. The machine tool of claim 5, wherein The five-axis motion assembly further comprises an X-axis motion component two, an Y-axis guide rail two, an Y-axis motion component two, a Z-axis guide rail two, a Z-axis motion component two, a C-axis orthogonal head and an A-axis orthogonal head arranged in sequence; the machine tool subtractive spindle is arranged on the A-axis orthogonal head.

8. The machine tool of claim 6, wherein, The middle portions of the X-axis motion component one and the X-axis motion component two are provided with mounting holes, and the Y-axis guide rail one and the Y-axis guide rail two are arranged in the mounting holes correspondingly.

9. The machine tool of claim 6 wherein, An additive machining spindle for additive machining of a workpiece to be machined is arranged at one end of the Z-axis motion component one of the three-axis motion assembly.

Images