Universal angle head capable of being automatically controlled

Abstract

The invention discloses a universal angle head capable of being automatically controlled, which relates to the field of machining and is characterized by comprising a cutter spindle, a rotating base, a horizontal rotating gear box, a tilting differential gear train, a tilting gear box, an angle sensor and the like. The device can realize the horizontal 360-degree rotation of the milling cutter head around the machine tool spindle and the rotation of the milling cutter head and the axis of the machine tool spindle in a range of-90 to 90 degrees, and has an automatic control function. One end of the cutter spindle is connected to the machine tool spindle, the other end of the cutter spindle is connected with the tilting differential gear train, rotating power of the machine tool spindle can be provided to the milling cutter, and the milling cutter can be adjusted at multiple angles. The horizontal rotating gear box comprises a pair of worm face gear pairs, an upper gear box body and a lower gear box body, the upper gear box body is fixed on the machine tool through a shaft pin, a face gear is connected with the rotating base, and the motor controls the worm to rotate so as to control the face gear and the rotating base to rotate around a main shaft of the machine tool by 360 degrees in the horizontal range. The tilting gear box is installed on the rotating base and comprises a worm face gear pair, the motor controls a worm to rotate, a face gear is connected with a bevel gear of the differential gear train, and rotation of the milling cutter head and the axis of a machine tool spindle within the range of-90 degrees to 90 degrees is achieved. Each rotating shaft is provided with an angle sensor, feedback adjustment can be carried out through the angle sensors and a motor controller, and accurate transmission is achieved. The testing device can realize automatic control of the angle head and has the advantages of convenience in use, high accuracy and the like.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing, and particularly relates to an automatically controllable universal angle head, which can transform a machine tool from ordinary Z-axis unidirectional processing to universal processing and has an automatic control function. Background Art

[0002] The universal angle head is a machine tool accessory, whose main function is to make the output form any angle between 0 and 90 degrees or -90 and +90 degrees with the machine tool spindle, and can rotate 360 ​​degrees around the machine tool spindle. This design allows the universal angle head to be flexibly used in a variety of processing scenarios, realizing functions such as processing of any inclined surface, vertical and horizontal conversion, and pentahedron processing. At present, universal angle heads are almost all manually adjusted, which is time-consuming and labor-intensive, and cannot automatically adjust and control the angle. The present invention uses worm face gears, bevel gear differential gear trains, angle sensors, and motor controllers to achieve automatic control of the universal angle head.

[0003] In the prior art, Chinese patent application number CN201610594678.6 discloses a universal angle head suitable for an EDM machine tool; Chinese patent application number CN201310185520.X discloses a taper Z-direction integrated device for an EDM wire cutting machine tool; Chinese patent application number CN202410814121.3 discloses a milling cutter head with adjustable angle for an edge milling machine. However, the related art still has the following deficiencies:

[0004] 1. The relevant mechanism can realize angle adjustment, but it needs manual adjustment and cannot realize automatic continuous rotation.

[0005] 2. The angle adjustment status relies on a ruler and naked eye observation, which cannot achieve accurate measurement.

[0006] Therefore, in order to overcome the technical defects in the previous devices, a practical automatic controlled universal angle head is developed to process complex parts, and the precise control of the milling cutter head is achieved through angle measurement. Summary of the invention

[0007] The technical problem to be solved by the present invention is mainly to provide an automatically controlled universal angle head, so that the output can form any angle between -90 and +90 degrees with the machine tool spindle, and can rotate 360 ​​degrees around the machine tool spindle, and automatic control is achieved through an angle sensor and a motor controller.

[0008] In order to achieve the above purpose, the present invention has developed an automatically controllable universal angle head, the main structure of which includes: a tool spindle, a rotating base, a horizontal rotating gear box, a tilt differential gear train, a tilt gear box, an angle sensor and other components.

[0009] One end of the tool spindle is connected to the machine tool spindle, and the other end is connected to a pair of bevel gear pairs to achieve reversal. After reversal, it is connected to the bevel gear differential train through the double bevel gear. The bevel gear differential train includes two sun gears and planetary gears. The planetary gears are used as outputs. The two sun gears are respectively connected to the outputs of the double bevel gears and the tilting gear box. The power of the machine tool spindle rotation is provided to the milling cutter, and the milling cutter can achieve an angle adjustment with the machine tool spindle axis in the range of -90 to 90 degrees.

[0010] The horizontal rotating gearbox includes a pair of worm face gear pairs and upper and lower gear housings. The upper gear housing is fixed to the machine tool by a shaft pin, and the lower housing is connected to the upper housing by bolts. The lower housing is connected to the stator end of the angle sensor, and the rotor is connected to the rotating base. The face gear is connected to the rotating base, the face gear is hollow, and rotates relative to the tool spindle through the bearing. The worm is connected to the motor, and the motor controls the rotation of the worm to control the face gear and the rotating base to rotate 360° around the machine tool spindle.

[0011] The tilt gearbox is mounted on a rotating base and includes a pair of worm face gear pairs. The worm is connected to the motor, one end of the face gear is connected to a bevel gear in the differential gear train, and the other end of the face gear is connected to the angle sensor. The motor controls the rotation of the worm to adjust the angle between the milling cutter head and the machine tool spindle axis in the range of -90 to 90 degrees. The rotor end of the angle sensor is connected to the face gear, and the stator end is connected to the rotating base. Feedback adjustment can be performed through the angle sensor and the motor controller to achieve precise transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0013] Figure 2 Schematic diagram of the gear transmission system of the present invention.

[0014] Figure 3 It is a worm face gear pair in the horizontal rotating gear box of the present invention.

[0015] Figure 4 It is a cross-sectional view of the tool spindle and face gear of the present invention.

[0016] Figure 5 It is a schematic diagram of the main shaft and differential gear train of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] The main structure of an automatically controllable universal angle head according to the present invention comprises: a tool spindle 101, a rotating base 3, an upper housing 201 and a lower housing 202 of a horizontal rotating gearbox, a motor 205, bevel gears 102, 103, 104 and 105, a tilting gearbox 401, a motor 405, and angle sensors 206 and 404, etc. Figure 1 shown.

[0019] One end of the tool spindle 101 is connected to the machine tool spindle, and the other end is connected to the bevel gear 102. The bevel gear 102 is meshed with the large end bevel gear of the double bevel gear 103 to achieve reversal. The connection here can be in the form of flat key, spline, thread, welding, etc. After reversal, it is connected to the bevel gear differential gear system through the small bevel gear of the double bevel gear 103.

[0020] The bevel gear differential gear train includes two sun gears 103 and 104, and a planetary gear 105. The planetary gear 105 is connected to the milling cutter head 5 as an output. The sun gear 104 tilts the output of the gear box. The power of the machine tool spindle 101 is provided to the milling cutter 502 through the gear train, and the milling cutter 502 can be adjusted to an angle within the range of -90 to 90 degrees with the axis of the machine tool spindle. Figure 5 The present invention utilizes gears and shafts to realize the power transmission of the system and the tilting of the milling cutter head, and has a simple structure and high reliability.

[0021] The horizontal rotating gearbox includes: a worm 203, a face gear 204, an upper gear box body 201, a lower gear box body 202, a motor 205, and an angle sensor 206. The upper gear box body 201 is fixed to the machine tool by an axle pin 106, and the lower gear box body 202 is connected to the upper gear box body 201 by bolts. The axle pin 106 can be connected to the main shaft 101 through a sleeve, and the axle pin and the pin shaft of the box body 201 are detachable. The face gear 204 is connected to the gearbox 202 through a uniform cross-section ball bearing. Other forms of bearings such as deep groove ball bearings and tapered roller bearings can be selected here. The lower box body is connected to the stator end of the angle sensor 206, and the rotor is connected to the rotating base 3. The worm 203 is connected to the motor 205, and the motor 205 controls the rotation of the worm, thereby controlling the face gear 204 and the rotating base 3 to rotate 360° around the main shaft of the machine tool, such as Figure 3 The worm face gear pair has a self-locking function. The present invention implements feedback adjustment through an angle sensor to achieve precise transmission.

[0022] The face gear 204 is connected to the rotating base 3. The face gear 204 is hollow and rotates relative to the tool spindle 101 through an angular contact bearing. Figure 4 As shown in the figure, the bearings here can be deep groove ball bearings and tapered roller bearings.

[0023] The tilt gearbox is mounted on the rotating base 3 and includes: a worm 402, a face gear 403, and a gearbox cover 401. The worm 402 is connected to the motor 405 through a flat key, and the worm 402 is meshed with the face gear 403. Figure 1 As shown. The worm face gear pair has a self-locking function. One end of the upper shaft of the face gear 403 is connected to a bevel gear 104 in the differential gear train, and the other end of the face gear 403 is connected to the angle sensor 404. The connection here can be in the form of a flat key, a spline, etc. The motor 405 controls the rotation direction and speed of the worm 402, and then controls the input of the bevel gear 104 of the differential gear train, which can realize the angle adjustment of the milling head 5 and the axis of the machine tool spindle in the range of -90 to 90°.

[0024] The rotor end of the angle sensor 404 is connected to the shaft of the face gear 403, and the stator end is connected to the rotating base 3. Feedback adjustment can be performed through the angle sensor 404 and the motor 405 controller to achieve precise transmission.

[0025] The above description is only a specific implementation mode of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatically controllable universal angle head, relating to the field of mechanical processing, characterized in that: It includes tool spindle, rotating base, horizontal rotating gearbox, tilting differential gear train, tilting gearbox and angle sensor etc. This device can realize the horizontal rotation of milling cutter head around the machine tool spindle by 360°, and rotate with the machine tool spindle axis within the range of -90 to 90°, and has automatic control function.

2. The automatically controllable universal angle head according to claim 1, characterized in that: One end of the tool spindle is connected to the machine tool spindle, and the other end is connected to the tilt differential gear train. The differential gear train takes the spindle rotation and the tilt gearbox rotation as input, and the milling cutter as output. The power of the machine tool spindle rotation can be provided to the milling cutter, and the milling cutter can achieve an angle adjustment in the range of -90 to 90° with the machine tool spindle axis.

3. The automatically controllable universal angle head according to claim 1, characterized in that: The horizontal rotating gearbox includes a pair of worm face gear pairs and upper and lower gear box bodies. The upper gear box body is fixed to the machine tool by a shaft pin, and the face gear is connected to the rotating base. The motor controls the rotation of the worm, thereby controlling the face gear and the rotating base to rotate 360° around the main axis of the machine tool.

4. The automatically controllable universal angle head according to claim 1, characterized in that: The tilt gearbox is installed on a rotating base and includes a pair of worm face gear pairs. The motor controls the rotation of the worm, and the face gear is connected to a bevel gear of the differential gear train to achieve angle adjustment between the milling cutter head and the machine tool spindle axis in the range of -90 to 90 degrees. Each rotating axis is equipped with an angle sensor, which can be feedback-adjusted through the angle sensor and the motor controller to achieve precise transmission.

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