Lifting turnover type turn-milling composite machine tool rotary table

Abstract

The utility model discloses a lifting turnover type turn-milling composite machine tool rotary table, which relates to the technical field of machine tool rotary table equipment, and comprises a fixed base, a rotary table base and a rotary table body, the rotary table body is rotatably arranged on the rotary table base, a lifting turnover device is arranged between the rotary table base and the fixed base, and the lifting turnover device is arranged on the rotary table base. The lifting turnover device comprises a guide seat and a lifting column, the guide seat is fixedly connected to the bottom of the fixed base, the lifting column is slidably connected to the guide seat, the rotary table base is hinged to the lifting column through a rotating shaft, a lifting driving mechanism is arranged between the guide seat and the lifting column, and the lifting driving mechanism drives the lifting column to rotate. And the rotating shaft is provided with an overturning driving mechanism. Therefore, the rotary table is provided with the lifting turnover mechanism, the angle of the rotary table body is adjusted, the rotary table is suitable for machining requirements of various workpieces, and the use range of a machine tool can be further expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe rotary table equipment technical field, concretely relates to a lift turnover formula lathe milling composite lathe rotary table. BACKGROUND

[0002] Lathe milling composite lathe is the development trend of existing numerical control machine tool, and is one of the most popular machining processes in the current mechanical processing field. Lathe milling composite lathe is the machine tool that combines turning, milling, boring and other processes, which can satisfy one clamping, complete the processing of parts as much as possible, ensure the machining accuracy, and the rotary table is a very important component in lathe milling composite lathe.

[0003] For the parts of complex surface, in order to facilitate the realization of multi-angle machining, the rotary table of the existing lathe milling composite lathe adopts cradle type rotary table, which is generally small in size, and adopts torque motor direct drive as the main mode. During mechanical processing, the angle of the rotary table can be adjusted at any time, thereby changing the included angle between the lathe rotary table and the machining tool, and meeting the machining requirements of various workpieces. The cradle type rotary table is small in size and has limited carrying capacity (about 1 ton at most). With the development of large machinery, especially during vertical or horizontal machining, the inertia of the high-speed rotating workpiece is very large. The cradle type rotary table obviously cannot meet the processing requirements. If a large rotary table is used, the support requirements for large workpieces can be met, but due to its large size, it is generally fixedly installed and cannot realize vertical-horizontal conversion, so the processing range is limited. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the above defects, the utility model provides a lift turnover formula lathe milling composite lathe rotary table, which can realize the adjustment of the angle of the rotary table body, is suitable for the machining requirements of various workpieces, and can further expand the use range of the lathe.

[0005] In order to achieve the above purpose, the utility model provides a lift turnover formula lathe milling composite lathe rotary table, which comprises a fixed base, a rotary table base and a rotary table body, the rotary table body is rotatably installed on the rotary table base, a lift turnover device is arranged between the rotary table base and the fixed base, the lift turnover device comprises a guide seat and a lifting column, the guide seat is fixedly connected to the bottom of the fixed base, the lifting column is slidably connected to the guide seat, the rotary table base is hingedly connected to the lifting column through a rotating shaft, a lifting driving mechanism is arranged between the guide seat and the lifting column, and the rotating shaft is provided with a turnover driving mechanism.

[0006] Preferably, the turnover driving mechanism comprises a turnover servo motor with an encoder installed at one end of the rotating shaft.

[0007] Preferably, the lifting driving mechanism comprises a rack, a driving gear and a lifting servo motor, the rack is fixed to the lifting column, the driving gear is fixed to the lifting servo motor, and the driving gear is in transmission engagement with the rack.

[0008] Preferably, the fixed base is further provided with a rotary table vertical locking device and a rotary table horizontal locking device.

[0009] Preferably, the rotary table vertical locking device comprises a vertical locking seat, the rotary table horizontal locking device comprises a horizontal locking seat, the rotary table base bottom is provided with a vertical pull pin for clamping the vertical locking seat, and the rotary table base side is provided with a horizontal pull pin for clamping the horizontal locking seat.

[0010] Preferably, the guide seat and the lifting column are both two sets.

[0011] After the above technical scheme is adopted, the utility model has the beneficial technical effects of:

[0012] 1. Since the rotary shafts are arranged on the two sides of the rotary table base and are hinged to the lifting columns, when the lifting columns are lifted to a certain height under the power of the lifting servo motors, the rotary table body can be turned over by 90 degrees, the switching between the vertical and horizontal machine tools is realized, and the temporary fixing is realized by the locking mechanism, so that the range of the compound machine tool can be expanded, the machining of more complex curved surfaces can be realized, the original machining error caused by the replacement of the compound machine tool can be avoided, and thus the machining precision can be ensured.

[0013] 2. The lifting mode is that the lifting servo motor is connected with the driving gear, and the lifting column is lifted or lowered by the meshing of the driving gear and the rack, the stability of the gear and rack transmission is strong, and the mode can be applied to heavy load, even if the rotary table body is large in size, the stable lifting can still be realized, the stability is stronger than that of the rocking cradle rotary table, and the mode can be applied to the bearing and fixing of large workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a use state reference schematic view of the utility model in a vertical machining state;

[0015] Figure 2 is a reference schematic view of the utility model in a lifting and turning state;

[0016] Figure 3 is a use state reference schematic view of the utility model in a horizontal machining state;

[0017] Figure 4 is a rear view reference schematic view of the utility model;

[0018] Figure 5is a three-dimensional state reference schematic diagram of the utility model;

[0019] In the figure,

[0020] 1, fixed base; 11, rotating shaft;

[0021] 2, rotary table base; 21, rotary table body; 22, pull-in locking cavity;

[0022] 3, lifting and overturning device; 31, guide seat; 32, lifting column; 33, lifting servo motor; 34, driving gear; 35, rack; 36, overturning servo motor;

[0023] 4, locking seat; 41, locking pull-in. DETAILED DESCRIPTION

[0024] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the embodiment, and the utility model is further detailed, and it should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0025] Referring to Figure 1 The utility model provides a kind of lifting and overturning type car milling compound machine tool rotary table, including fixed base 1, rotary table base 2 and rotary table body 21, rotary table body 21 is rotatably installed in rotary table base 2, and rotary table base 2 is equipped with lifting and overturning device 3 between fixed base 1;Lifting and overturning device 3 includes guide seat 31, lifting column 32 and lifting servo motor 33, guide seat 31 is fixedly connected the bottom of fixed base 1, lifting column 32 is slidably connected in guide seat 31, and rotary table base 2 is hinged in lifting column 32 by rotating shaft 11;And the lifting distance of lifting column 32 is greater than the radius of rotation of rotary table body 21.The rotary table body 21 of the utility model includes two kinds of working rotary table, vertical machining and horizontal machining, and two kinds of working states can be converted.In actual use process, to facilitate overturning, the driving device of rotary table body 21 is generally arranged in the inside of rotary table base 2.Lifting servo motor 33 drives driving gear 34 to rotate, and lifting column 32 is driven to move upwards by rack 35, when the moving distance is obviously more than the radius of rotation of rotary table body 21, overturning servo motor 36 rotates 90 degrees after rotary table body 21, lifting servo motor 33 works reversely, lifting column 32 falls back, and then locking pull-in 41 locks and fixes rotary table base 2.It is schematic diagram in the figure, to prevent movement interference, locking seat 4 lower part on fixed base 1 needs to be high-processed.Rotating shaft 11 is provided with overturning driving mechanism, and overturning mechanism is generally preferably overturning servo motor 36, and can also use worm and worm gear etc.

[0026] Referring to Figures 2-4The utility model discloses a rotating shaft 11 one end is installed with the encoder's turnover servo motor 36, and the utility model discloses a lifting column 32 is fixed with the rack 35, and the lifting servo motor 33 is fixed with the drive gear 34, and the drive gear 34 is transmission engagement with the rack 35. Figure 3 The rotating table base 2 in the utility model can fall back a certain distance and then be locked and fixed.

[0027] The utility model discloses a fixed base 1 still is equipped with locking mechanism. Rotating table body 21 ascends a certain height, and under the action of turnover servo motor 36, rotates a certain angle, and the most commonly used angle is 90 degrees, and after turnover, falls again, and is locked and fixed by rotating table vertical locking device or rotating table horizontal locking device, realizes mechanical processing. Rotating table vertical locking device or rotating table horizontal locking device are all mature prior art, and the locking pull nail 41 is all used in the utility model.

[0028] Referring to Figure 5 The utility model discloses a locking mechanism includes locking seat 4 and the locking pull nail 41 of fixedly equipped at locking seat 4, and the bottom and side of rotating table base 2 are equipped with the pull nail locking cavity 22 corresponding with the locking pull nail 41. Locking seat 4 is the mature prior art with the locking pull nail 41, can realize the fixation of rotating table base 2. The horizontal pull nail is same with vertical pull nail model, only angle is different, after turnover to the specified position, is fixed through vertical pull nail or horizontal pull nail and corresponding pull nail locking cavity 22, realizes the tension, guarantees the security of mechanical processing.

[0029] Of course, the utility model can also have other various embodiments, and the skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and deformations should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A lifting and overturning type turning table of a turning and milling combined machine tool, comprising: a fixed base, a turning table base and a turning table body, the turning table body being rotatably installed on the turning table base, characterized in that, a lifting and overturning device is arranged between the turning table base and the fixed base, the lifting and overturning device comprises a guide seat and a lifting column, the guide seat is fixedly connected to the bottom of the fixed base, the lifting column is slidingly connected to the guide seat, the turning table base is hingedly connected to the lifting column through a rotating shaft, a lifting driving mechanism is arranged between the guide seat and the lifting column, and the rotating shaft is provided with an overturning driving mechanism. The overturning driving mechanism comprises an overturning servo motor with an encoder fixedly arranged at one end of the rotating shaft. The lifting driving mechanism comprises a rack, a driving gear and a lifting servo motor, the rack is fixedly arranged on the lifting column, the driving gear is fixedly arranged on the lifting servo motor, and the driving gear is in driving engagement with the rack.

2. The turntable of claim 1, wherein, The fixed base is further provided with a turning table vertical locking device and a turning table horizontal locking device.

3. The turntable of claim 2, wherein, The turning table vertical locking device comprises a vertical locking seat, the turning table horizontal locking device comprises a horizontal locking seat, the bottom of the turning table base is fixedly provided with a vertical pull pin for clamping the vertical locking seat, and the side of the turning table base is fixedly provided with a horizontal pull pin for clamping the horizontal locking seat.

4. The turntable of claim 1, wherein, The guide seat and the lifting column are both two sets.

5. The turntable of claim 4, wherein, ​ 6. The turntable for a vertical turning and milling machine according to claim 1, characterized in that, ​

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