Multi-axis platform for CNC machining

Abstract

The utility model discloses a multi-shaft platform for CNC (computer numerical control) processing, which relates to the technical field of CNC milling machines and comprises a base, a rotating shaft I, a rotating shaft II and a rotating shaft II, the rotary table is fixedly arranged at the upper end of the second rotary shaft, and a pair of stand columns are fixedly arranged on the two sides above the rotary table; the pair of rotating plates is rotationally arranged on the inner side of the stand column through rotating shafts I, and the axial leads of the rotating shafts I are collinear; the mounting table is arranged between the pair of rotating plates and can rotate by taking the rotating shaft I as an axis; a turntable driving assembly and a turntable positioning assembly; the mounting table is arranged on the rotating plate, so that a workpiece can rotate along the axis of the first rotating shaft, the workpiece can rotate in the Z-axis direction, the position of the first rotating shaft in the horizontal direction can be adjusted by rotating the rotating table by 90 degrees, and the workpiece can rotate in the X-axis direction; and meanwhile, the relative position of the workpiece and the axis of the first rotating shaft can be adjusted by adjusting the height of the mounting table on the rotating plate, and different parts can be machined conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to CNC milling machine technology fields, concretely is a kind of multi-axis platform for CNC machining. BACKGROUND

[0002] CNC milling machine, also known as numerical control milling machine or machining center, is a kind of automatic machine tool equipped with program control system. It can automatically complete various complex shape milling by inputting instructions on the system. CNC milling machine has the advantages of high machining precision, stable machining quality and high production efficiency, and can process complex parts that ordinary machine tools cannot process.

[0003] However, the existing CNC milling machine may need to reposition the workpiece multiple times when machining complex-shaped workpieces, which increases positioning error and affects machining precision. To solve this problem, a multi-axis platform for CNC machining is provided to reduce the clamping frequency during workpiece machining, which is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a multi-axis platform for CNC machining to solve the problems raised in the background.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a multi-axis platform for CNC machining, comprising:

[0006] A base is provided with a cavity in the center, and a second rotating shaft is rotatably arranged in the center of the base.

[0007] A turntable is fixedly arranged at the upper end of the second rotating shaft, and a pair of vertical columns is fixedly arranged on both sides of the upper part of the turntable.

[0008] A pair of rotating plates are rotatably arranged inside the vertical columns through the first rotating shaft, and the axis lines of the first rotating shafts are collinear.

[0009] An installation table is arranged between the pair of rotating plates and can rotate around the first rotating shaft as the axis.

[0010] A turntable driving assembly includes a large gear fixedly arranged at the lower end of the second rotating shaft, a motor fixedly arranged in the cavity and a pinion connected to the output end of the motor, and the pinion is engaged with the large gear.

[0011] A turntable positioning assembly is arranged in the cavity for fixing the turntable.

[0012] Preferably, the turntable positioning assembly comprises:

[0013] A cylinder is fixedly arranged in the cavity.

[0014] Positioning pin, fixed to the telescopic end of the cylinder;

[0015] Positioning disc, fixed below the gear, the circumferential side wall is provided with two positioning holes with 90-degree included angle, the positioning pin can be inserted into the positioning hole to form positioning locking.

[0016] Preferably, the installation box is fixedly arranged outside any column, and a second motor is arranged in the installation box.

[0017] The rotating shaft extends into the installation box and is fixed with a worm wheel, and the second motor is connected with a worm that is engaged with the worm wheel.

[0018] Preferably, a plurality of threaded holes with different heights are arranged on the surface of the rotating plate, and an adjusting screw matched with the threaded hole is arranged at the bottom of the mounting table.

[0019] Preferably, a plane bearing is arranged between the base and the rotating table, and the plane bearing is fixed to the upper surface of the base.

[0020] Preferably, a detachable sealing plate is arranged at the bottom of the cavity, and the sealing plate is connected with the base through a screw.

[0021] Preferably, an annular eave is arranged at the bottom edge of the rotating table, and the eave extends downward to form a liquid-proof baffle.

[0022] Beneficial effects

[0023] The utility model provides a kind of multi-axis platform for CNC machining, with the following beneficial effects: by being arranged on rotating plate, the workpiece can be rotated along the axis of rotating shaft one, realize that workpiece can be rotated in Z axis direction, by rotating 90 degrees to rotating table, the horizontal direction position of rotating shaft one can be adjusted, realize that workpiece can be rotated in X axis direction, and by adjusting the height of mounting table on rotating plate, the relative position of workpiece and rotating shaft one axis can be adjusted, different parts are conveniently machined. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the front view of the utility model;

[0025] Figure 2 Figure 1 The local enlarged view of A.

[0026] In the drawing: 1, base; 2, rotating table; 3, column; 4, rotating shaft one; 5, rotating plate; 6, mounting table; 7, cavity; 8, rotating shaft two; 9, gear; 10, first motor; 11, pinion; 12, positioning disc; 13, cylinder; 14, positioning pin; 15, positioning hole; 16, worm wheel; 17, second motor; 18, worm; 19, threaded hole; 20, screw; 21, plane bearing; 22, sealing plate; 23, installation box; 24, dust cover. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0028] Please refer to Figures 1-2 The utility model provides a kind of technical scheme: a multi-axis platform for CNC machining, including base 1, the base 1 top is provided with rotatable rotary table 2, one side of the rotary table 2 top is fixedly provided with a pair of column 3, a pair of the inner side of column 3 is rotatably provided with a pair of rotating plate 5 by rotating shaft one 4, the axis of a pair of rotating plate 5 is collinear, mounting table 6 is installed between a pair of the rotating plate 5, the mounting table 6 can be rotatably with rotating shaft one 4 as axis, cavity 7 is opened in the base 1, rotating shaft two 8 is rotatably arranged in the center of the base 1, the rotary table 2 is fixed in the upper end of rotating shaft two 8, the lower end of rotating shaft two 8 extends into the cavity 7 and is fixedly installed with large gear 9, motor one 10 is also fixedly arranged in the cavity 7, the power output end of the motor is fixedly provided with small gear 11 meshing with large gear 9, rotary table 2 positioning assembly is also provided in the cavity 7.

[0029] As an embodiment of the utility model, the cavity 7 is fixedly provided with cylinder 13, the telescopic end of cylinder 13 is fixedly provided with positioning pin 14, positioning disc 12 is fixedly arranged below large gear 9, two positioning holes 15 with 90 degrees included angle are opened in the circumferential side wall of positioning disc 12, positioning pin 14 can be inserted into positioning hole 15 by cylinder 13 pushing, so as to fix rotatable rotary table 2.

[0030] As an embodiment of the utility model, one of a pair of the outer side of column 3 is fixedly provided with mounting box 23, motor two 17 is fixedly arranged in the mounting box 23, the power output end of motor two 17 is fixedly provided with worm 18, one end of rotating shaft one 4 extends into the mounting box 23 and is fixedly provided with worm gear 16, worm gear 16 is meshed with worm 18, and the power transmission of motor two 17 and rotating shaft one 4 is completed by worm gear 16 and worm 18, and the rotation of rotating plate 5 is prevented by the self-locking function of worm gear 16 and worm 18.

[0031] Further, a plurality of thread holes 19 with different heights are opened in the rotating plate 5, and the mounting table 6 is provided with screw 20 at the bottom, and the height of the mounting table 6 on the pair of rotating plates 5 is adjusted by screwing the screw 20 in the thread holes 19 with different heights.

[0032] Further, the upper surface of base 1 is provided with plane bearing 21, and the rotary table 2 is in contact with the plane bearing 21 to improve the rotation stability.

[0033] Further, the bottom of the cavity 7 is provided with a blocking plate 22 mounted by screws, through which the external dust can be prevented from entering the cavity 7.

[0034] Further, the lower edge of the rotary table 2 is provided with a ring-shaped eave, through which the cutting fluid can be prevented from flowing into the gap between the base 1 and the rotary table 2.

[0035] Those skilled in the art will connect all electrical components in the case with the power supply through wires, and should select appropriate controllers according to the actual situation to meet the control requirements. The specific connection and control sequence should be referred to the working principle below to complete the electrical connection according to the working sequence of each electrical component. The detailed connection means is a well-known technology in the art, and the working principle and process are mainly introduced below, and the electrical control is not described.

[0036] The working principle and use process of the utility model: in use, the workpiece is fixed on the mounting table 6, the rotation of the rotating shaft one 4 can be realized by starting the motor two 17, the mounting table 6 can drive the workpiece to rotate with the axis of the rotating shaft one 4 as the center, the Z-axis direction rotation of the workpiece is realized, when the workpiece needs to rotate along the X-axis direction, first, the positioning pin 14 is extracted from the positioning hole 15 by starting the cylinder 13, then the rotary table 2 is rotated by starting the motor one 10, when the rotary table 2 rotates 90 degrees and stops, at this time, the other positioning hole 15 can be aligned with the positioning pin 14, the positioning pin 14 is inserted into the positioning hole 15 by starting the cylinder 13 again, at this time, the rotary table 2 is fixed and cannot rotate, the X-axis direction rotation of the workpiece can be realized by starting the motor two 17; the relative position of the workpiece and the axis of the rotating shaft one 4 can be adjusted by adjusting the height of the mounting table 6, which is convenient for machining different parts; the internal parts of the cavity 7 can be maintained and replaced by the detachable blocking plate 22.

[0037] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-axis platform for CNC machining, characterized by, It includes: Base (1), the cavity (7) is opened in the base (1), the second rotating shaft (8) is rotationally arranged at the center of base (1); Rotary table (2), fixedly arranged at the upper end of the second rotating shaft (8), a pair of vertical columns (3) are fixedly arranged on both sides of the rotary table (2) upper side; A pair of rotating plates (5) are rotationally arranged on the inner side of the vertical column (3) through the first rotating shaft (4), and the axis of the first rotating shaft (4) is collinear; Mounting table (6) is arranged between the pair of rotating plates (5) and can rotate around the first rotating shaft (4) as the axis; Rotary table driving assembly, including the large gear (9) fixedly arranged at the lower end of the second rotating shaft (8), the motor (10) fixedly arranged in the cavity (7) and the pinion (11) connected with the output end of the motor (10), the pinion (11) is engaged with the large gear (9); Rotary table positioning assembly, arranged in the cavity (7) for fixing the rotary table (2).

2. A multi-axis platform for CNC machining as claimed in claim 1, wherein: The rotary table positioning assembly includes: Air cylinder (13), fixedly arranged in the cavity (7); Positioning pin (14), fixed to the telescopic end of the air cylinder (13); Positioning disc (12), fixed below the large gear (9), the circumferential side wall is provided with two positioning holes (15) with 90 degree included angle, the positioning pin (14) can be inserted into the positioning hole (15) to form positioning locking.

3. A multi-axis platform for CNC machining according to claim 1 or 2, characterized in that: It also includes a mounting box (23) fixedly arranged on the outer side of any vertical column (3), and a motor (17) is arranged in the mounting box (23); The first rotating shaft (4) extends into the mounting box (23) and is fixedly provided with a worm gear (16), and the output end of the motor (17) is connected with a worm (18) engaged with the worm gear (16).

4. A multi-axis platform for CNC machining as claimed in claim 3, wherein: A plurality of threaded holes (19) with different heights are arranged on the surface of the rotating plate (5), and the bottom of the mounting table (6) is provided with an adjusting screw (20) matched with the threaded hole (19).

5. A multi-axis platform for CNC machining as claimed in claim 1, wherein: The plane bearing (21) is arranged between the base (1) and the rotary table (2), and the plane bearing (21) is fixed to the upper surface of the base (1).

6. A multi-axis platform for CNC machining as claimed in claim 1, wherein: The bottom of the cavity (7) is provided with a detachable blocking plate (22), and the blocking plate (22) is connected with the base (1) through screws.

7. A multi-axis platform for CNC machining as claimed in claim 1, wherein: The bottom edge of the rotary table (2) is provided with a ring-shaped eave, and the eave extends downward to form a liquid-proof baffle.

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