Five-axis numerical control machine tool

Abstract

The utility model discloses a five-axis numerical control machine tool which comprises a base, a machine frame fixedly connected to the base, a movable seat installed on the machine frame through a first guide mechanism and an X-direction ball screw, a first servo motor driving the X-direction ball screw, and a swing seat installed on the movable seat through a second guide mechanism and a Z-direction ball screw. The second servo motor drives the Z-direction ball screw, the rotating shaft is vertically and rotatably installed on the swing base, the third servo motor drives the rotating shaft, the spindle box is fixedly connected to the lower end of the rotating shaft, the cutting shaft is horizontally and rotatably installed on the spindle box, and the fourth servo motor drives the cutting shaft. A workpiece table is installed on the base through a third guide mechanism and a Y-direction ball screw, and a connecting base is arranged on the workpiece table. The utility model has the advantages that the machining range of workpieces is effectively widened, and the requirements of more types of machining tasks are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining equipment technical field, especially five -axis numerical control machine tool. BACKGROUND

[0002] Five -axis numerical control machine tool is a kind of highly precise manufacturing equipment, and the ability of multi-axis linkage makes machine tool can handle complex shape parts, without repositioning workpiece in the machining process, to improve production efficiency and machining accuracy.Five -axis numerical control machine tool is widely used in aerospace, automobile manufacturing, mould processing and other fields, and it is especially important for the machining of parts needing high precision and complex surface.

[0003] The utility model discloses a kind of five -axis numerical control machine tools for workpiece milling, and workpiece processing tooling is installed on reference disc during processing, to realize the adjustment of workpiece angle. However, this machine tool has certain limitation-It cannot provide the horizontal movement processing capacity of workpiece. This means that when it involves the transformation between different positions to complete complex shape or large area processing task, this machine tool is not up to the task. Since lacking the movement function in horizontal direction, its processing range is limited, cannot meet the demand of workpiece horizontal movement processing in some specific application scenarios, especially for those tasks requiring large-scale movement or continuous path processing, urgently need to be improved. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of five -axis numerical control machine tool.

[0005] To solve the above technical problem, the technical scheme of the utility model is as follows:

[0006] A kind of five -axis numerical control machine tool, including base, machine frame being fixedly connected to base, mobile seat being installed on the machine frame by guide mechanism one and X direction ball screw, servo motor one driving X direction ball screw, swing seat being installed on the mobile seat by guide mechanism two and Z direction ball screw, servo motor two driving Z direction ball screw, vertical rotation installation on swing seat on the shaft, servo motor three driving the shaft, main shaft box being fixedly connected to the lower end of the shaft, cutting shaft being horizontally rotationally installed on main shaft box, and servo motor four driving cutting shaft;Workpiece table is installed on the base by guide mechanism three and Y direction ball screw, and connecting seat is arranged on the workpiece table.

[0007] Preferably, the third guiding mechanism comprises two parallel guiding rods III fixedly connected to the base, and a sliding block III slidingly sleeved with the guiding rods III, the sliding block III being fixedly connected to the workpiece table; the Y-direction ball screw comprises a screw rod III rotatably connected to the base, and a nut III screwed on the screw rod III; the nut III is fixedly connected to the workpiece table; the screw rod III is parallel to the guiding rods III, and the screw rod III and the guiding rods III are arranged in a triangular shape.

[0008] Preferably, the base is provided with a support for mounting the guiding rods III, and a support plate for mounting the screw rods III.

[0009] Preferably, the second guiding mechanism comprises two parallel guiding rods II fixedly connected to the moving base, and a sliding block II slidingly sleeved with the guiding rods II, the sliding block II being fixedly connected to the swing base; the Z-direction ball screw comprises a screw rod II rotatably connected to the moving base, and a nut II screwed on the screw rod II; the nut II is fixedly connected to the swing base; the screw rod II is parallel to the guiding rods II, and the screw rod II and the guiding rods II are arranged in a triangular shape.

[0010] Preferably, the first guiding mechanism comprises two parallel guiding rods I fixedly connected to the rack, and a sliding block I slidingly sleeved with the guiding rods I, the sliding block I being fixedly connected to the moving base; the X-direction ball screw comprises a screw rod I rotatably connected to the rack, and a nut I screwed on the screw rod I; the nut I is fixedly connected to the moving base; the screw rod I is parallel to the guiding rods I, and the screw rod I and the guiding rods I are arranged in a triangular shape.

[0011] Preferably, the connecting base is a fixed structure.

[0012] Preferably, the base is provided with an adjustable supporting leg.

[0013] Preferably, the lower end of the rotating shaft is fixedly connected to the mounting plate, and the spindle box is detachably connected to the mounting plate.

[0014] The above technical scheme has the following advantages:

[0015] The workpiece table is designed as a movable structure, so that the workpiece can be stably fixed on the machining position, and can be accurately and stably moved in the Y direction. This improvement significantly enhances the machining capacity of the machine tool for complex-shaped and large-area workpieces, because the workpiece can now be accessed and operated in a larger range. Therefore, by endowing the workpiece table with the movement function in the Y axis, the machining range of the workpiece is effectively improved, meeting the needs of more types of machining tasks, and improving the production efficiency and machining flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the utility model;

[0017] Figure 2 is a left view of the utility model; Figure 1

[0018] Figure 3 is a top view of the utility model; Figure 1

[0019] Figure 4 is a sectional view along A-A in the middle of the utility model; Figure 3

[0020] Figure 5 is a sectional view along B-B in the middle of the utility model; Figure 3

[0021] Figure 6 is a perspective view of the utility model;

[0022] in the figure:

[0023] 1-base, 2-frame, 3-guide mechanism one, 4-guide rod one, 5-sliding block one, 6-X direction ball screw, 7-screw one, 8-nut one, 9-moving seat, 10-servo motor one, 11-guide mechanism two, 12-guide rod two, 13-sliding block two, 14-Z direction ball screw, 15-screw two, 16-nut two, 17-oscillating seat, 18-servo motor two, 19-rotating shaft, 20-servo motor three, 21-main shaft box, 22-cutting shaft, 23-servo motor four, 24-guide mechanism three, 25-guide rod three, 26-sliding block three, 27-Y direction ball screw, 28-screw three, 29-nut three, 30-workpiece table, 31-connecting seat, 32-supporting seat, 33-supporting plate, 34-adjustable supporting leg, 35-mounting plate. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model will be further described below in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] ​​​​As shown in the drawings, a five-axis numerical control machine tool comprises a base 1, a frame 2 fixedly connected to the base 1, a moving seat 9 installed on the frame 2 through a guide mechanism I 3 and an X-direction ball screw 6, a servo motor I 10 driving the X-direction ball screw 6, a swing seat 17 installed on the moving seat 9 through a guide mechanism II 11 and a Z-direction ball screw 14, a servo motor II 18 driving the Z-direction ball screw 14, a rotating shaft 19 vertically rotatably installed on the swing seat 17, a servo motor III 20 driving the rotating shaft 19, a spindle box 21 fixedly connected to the lower end of the rotating shaft 19, a cutting shaft 22 horizontally rotatably installed on the spindle box 21, and a servo motor IV 23 driving the cutting shaft 22; a workpiece table 30 is installed on the base 1 through a guide mechanism III 24 and a Y-direction ball screw 27, and a connecting seat 31 is arranged on the workpiece table 30.

[0026] As a preferred technical solution of the embodiment, the guide mechanism III 24 comprises two parallel guide rods III 25 fixedly connected to the base 1, and a sliding block III 26 slidingly sleeved with the guide rods III 25, wherein the sliding block III 26 is fixedly connected to the workpiece table 30; the Y-direction ball screw 27 comprises a screw rod III 28 rotatably connected to the base 1, and a nut III 29 screwed on the screw rod III 28; the nut III 29 is fixedly connected to the workpiece table 30; the screw rod III 28 is parallel to the guide rods III 25, the axis of the guide rods III 25 is arranged along the Y direction, and the screw rod III 28 and the guide rods III 25 are arranged in a triangular shape, which has better stability to ensure the machining precision. Obviously, the guide mechanism III 24 can also use commonly used guide mechanisms such as dovetail grooves or sliding rails.

[0027] As a further improved technical solution of the embodiment, a support 32 for installing the guide rods III 25 is arranged on the base 1, and a support plate 33 for installing the screw rod III 28 is arranged on the base 1, so as to facilitate the disassembly and assembly of the guide rods III 25 and the screw rod III 28.

[0028] As a preferred technical solution of the embodiment, the guide mechanism II 11 comprises two parallel guide rods II 12 fixedly connected to the moving seat 9, and a sliding block II 13 slidingly sleeved with the guide rods II 12, wherein the sliding block II 13 is fixedly connected to the swing seat 17; the Z-direction ball screw 14 comprises a screw rod II 15 rotatably connected to the moving seat 9, and a nut II 16 screwed on the screw rod II 15; the nut II 16 is fixedly connected to the swing seat 17; the screw rod II 15 is parallel to the guide rods II 12, and the screw rod II 15 and the guide rods II 12 are arranged in a triangular shape.

[0029] As the preferred technical scheme of the embodiment, the guiding mechanism one 3 comprises two parallel guiding rods one 4 fixedly connected with the rack 2, and a sliding block one 5 slidably sleeved with the guiding rod one 4, wherein the sliding block one 5 is fixedly connected with the moving seat 9; the X-direction ball screw 6 comprises a screw rod one 7 rotatably connected with the rack 2, and a nut one 8 screwed on the screw rod one 7; the nut one 8 is fixedly connected with the moving seat 9; the screw rod one 7 is parallel with the guiding rod one 4, the axis of the guiding rod one 4 is arranged along the X direction, and the screw rod one 7 and the guiding rod one 4 are arranged in a triangle shape, which has better stability to ensure the machining precision. Obviously, the guiding mechanism one 3 can also adopt a common guiding mechanism such as a dovetail groove or a sliding rail.

[0030] As the preferred technical scheme of the embodiment, the connecting seat 31 is a fixed structure, and obviously, a rotating structure can also be adopted to meet different machining requirements.

[0031] As the preferred technical scheme of the embodiment, the base 1 is provided with an adjustable supporting leg 34 to facilitate the adjustment of the levelness of the machine tool.

[0032] As the preferred technical scheme of the embodiment, the lower end of the rotating shaft 19 is fixedly connected with the mounting plate 35, and the spindle box 21 is detachably connected with the mounting plate 35, so that the spindle box 21 can be conveniently disassembled and assembled as a whole, thereby improving the convenience of maintenance.

[0033] During the machining of the workpiece, the tooling with the workpiece is fixed on the connecting seat 31, the servo motor three 20 drives the rotation of the cutting shaft 22 to drive the cutter (not shown in the figure) on the cutting shaft 22 to rotate; the servo motor one 10 drives the screw rod one 7 to rotate forward and backward to drive the moving seat 9 to move back and forth along the X direction; the servo motor two 18 drives the screw rod two 15 to rotate forward and backward to drive the swing seat 17 to move up and down; the servo motor four 23 drives the rotating shaft 19 to rotate forward and backward to drive the spindle box 21 to rotate forward and backward along the Z axis, so as to realize the swing of the spindle box 21 around the Z axis.

[0034] The workpiece table (30) is designed as a movable structure, so that the workpiece can be stably fixed on the machining position, and can also be accurately and stably moved in the Y direction. This improvement significantly enhances the machining capacity of the machine tool for complex-shaped and large-area workpieces, because the workpiece can now be touched and operated in a larger range.

[0035] The embodiments of the utility model are described in detail above with reference to the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A five-axis numerical control machine tool, comprising a base (1), a machine frame (2) fixedly connected to the base (1), a moving seat (9) installed on the machine frame (2) through a guide mechanism I (3) and an X-direction ball screw (6), a servo motor I (10) for driving the X-direction ball screw (6), a swing seat (17) installed on the moving seat (9) through a guide mechanism II (11) and a Z-direction ball screw (14), a servo motor II (18) for driving the Z-direction ball screw (14), a rotating shaft (19) vertically rotatably installed on the swing seat (17), a servo motor III (20) for driving the rotating shaft (19), a spindle box (21) fixedly connected to the lower end of the rotating shaft (19), a cutting shaft (22) horizontally rotatably installed on the spindle box (21), and a servo motor IV (23) for driving the cutting shaft (22); characterized in that: The workpiece table (30) is installed on the base (1) through the guide mechanism three (24) and the Y-direction ball screw (27), and the connecting seat (31) is arranged on the workpiece table (30).

2. The five-axis CNC machine tool according to claim 1, characterized in that: The guide mechanism three (24) comprises two parallel guide rods three (25) fixedly connected with the base (1) and sliding blocks three (26) slidingly sleeved with the guide rods three (25), and the sliding blocks three (26) are fixedly connected with the workpiece table (30); the Y-direction ball screw (27) comprises a screw rod three (28) rotatably connected with the base (1) and a nut three (29) screwed on the screw rod three (28); the nut three (29) is fixedly connected with the workpiece table (30); the screw rod three (28) is parallel to the guide rod three (25), and the screw rod three (28) and the guide rod three (25) are arranged in a triangular shape.

3. The five-axis CNC machine tool according to claim 2, characterized in that: The base (1) is provided with a support (32) for installing the guide rod three (25), and the base (1) is provided with a support plate (33) for installing the screw rod three (28).

4. The five-axis CNC machine according to any one of claims 1-3, characterized in that: The guide mechanism two (11) comprises two parallel guide rods two (12) fixedly connected with the moving seat (9) and sliding blocks two (13) slidingly sleeved with the guide rods two (12), and the sliding blocks two (13) are fixedly connected with the swing seat (17); the Z-direction ball screw (14) comprises a screw rod two (15) rotatably connected with the moving seat (9) and a nut two (16) screwed on the screw rod two (15); the nut two (16) is fixedly connected with the swing seat (17); the screw rod two (15) is parallel to the guide rod two (12), and the screw rod two (15) and the guide rod two (12) are arranged in a triangular shape.

5. The five-axis CNC machine according to any one of claims 1-3, characterized in that: The guide mechanism one (3) comprises two parallel guide rods one (4) fixedly connected with the rack (2) and sliding blocks one (5) slidingly sleeved with the guide rods one (4), and the sliding blocks one (5) are fixedly connected with the moving seat (9); the X-direction ball screw (6) comprises a screw rod one (7) rotatably connected with the rack (2) and a nut one (8) screwed on the screw rod one (7); the nut one (8) is fixedly connected with the moving seat (9); the screw rod one (7) is parallel to the guide rod one (4), and the screw rod one (7) and the guide rod one (4) are arranged in a triangular shape.

6. The five-axis CNC machine according to any one of claims 1-3, characterized in that: The connecting seat (31) is a fixed structure.

7. The five-axis CNC machine according to any one of claims 1-3, characterized in that: The base (1) is provided with an adjustable supporting leg (34).

8. The five-axis CNC machine according to any one of claims 1-3, characterized in that: The lower end of the rotating shaft (19) is fixedly connected with the mounting plate (35), and the main shaft box (21) is detachably connected with the mounting plate (35). The lower end of the rotating shaft (19) is fixedly connected with the mounting plate (35), and the main shaft box (21) is detachably connected with the mounting plate (35).

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