WO2023115864A1

WO2023115864A1 - Vertical numerical control machine tool provided with multifunctional clamping table

Info

Publication number: WO2023115864A1
Application number: PCT/CN2022/101166
Authority: WO
Inventors: 阮思群; 田潇雅
Original assignee: 阮思群
Priority date: 2021-12-20
Filing date: 2022-06-24
Publication date: 2023-06-29
Also published as: CN114406758A

Abstract

A vertical numerical control machine tool provided with a multifunctional clamping table, the machine tool comprising a working platform (1) of the vertical numerical control machine tool, wherein a vertical pneumatic chuck (2) is fixed to an upper end face of the working platform (1), several clamping jaws (21) are formed on an upper end face of the pneumatic chuck (2), vertical jaw blocks (4) are fixedly connected to outer ends of the clamping jaws (21), cushion blocks (3) are fixed to portions of the upper end face of the pneumatic chuck (2) between the adjacent clamping jaws (21), a rotary tray (5) is provided directly above the middle of the pneumatic chuck, and a lower end face of the rotary tray (5) abuts against the cushion blocks (3); and an adsorption hole (51) is formed in the middle of an upper end face of the rotary tray (5), several air tightness test holes (52) are formed in portions of the rotary tray (5) around the adsorption hole (51), and an annular ventilation groove (53) that is in communication with the air tightness test holes (52) is formed in the rotary tray (5).

Description

A vertical numerical control machine tool equipped with a multifunctional clamping table

technical field

The invention relates to the technical field of numerically controlled machine tools, and more specifically relates to a vertical numerically controlled machine tool provided with a multifunctional clamping table.

Background technique

In modern processing and manufacturing industries, mechanical components are often inseparable from turning, milling and grinding of machine tools. Especially for precision components that require high machining accuracy, they are usually manufactured by CNC machine tools. Compared with traditional milling machines, lathes and grinding machines, CNC machine tools can process various complex planes, curved surfaces, grooves, etc. by combining rapid rotation and feed motion. At present, some CNC machine tools are equipped with a clamping table, which is equipped with clamping jaws, through which the workpiece can be clamped and fixed. For example, when processing some circular workpieces, the clamping jaws are distributed around the circular workpiece and can clamp the workpiece. The outer wall of the workpiece, but the existing clamping table can only be used to fix the circular workpiece, and cannot realize the rotation of the circular workpiece. For example, in the process of processing the equal parts of the circular workpiece, it can only be realized by driving the tool to move.

Contents of the invention

The purpose of the present invention is to address the deficiencies of the prior art, and provide a vertical numerically controlled machine tool with a multifunctional clamping table, which can clamp and fix the workpiece, and can drive the rotation of the workpiece, which is convenient for the workpiece to be rotated. processing.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

A vertical numerically controlled machine tool provided with a multifunctional clamping table, comprising a working platform of the vertical numerically controlled machine tool, a vertical pneumatic chuck is fixed on the upper end surface of the working platform, and several clamps are formed on the upper end surface of the pneumatic chuck Claws, the outer ends of the jaws are fixedly connected with vertical claw blocks, and pads are fixed on the upper end surface of the pneumatic chuck between the adjacent jaws. It is characterized in that: there is a Rotate the tray, the lower end surface of the rotating tray leans against the block; the middle part of the upper end surface of the rotating tray is formed with an adsorption hole, and several airtight detection holes are formed on the rotating tray around the adsorption hole. The annular ventilation groove of the airtight detection hole; the outer wall of the rotating tray is respectively formed with a circular upper ring groove and a lower ring groove, and an air inlet groove connecting the upper ring groove and the annular ventilation groove is formed in the rotating tray. An air outlet groove connecting the lower ring groove and the adsorption hole is formed; a suction cup is inserted and fixed in the adsorption hole of the rotating tray, and a detection cushion is inserted and fixed in the airtight detection hole, and the detection cushion is formed to communicate with the airtight detection hole vent hole;

The sleeve on the rotating tray is fixed with a ring-shaped positioning seat, and the positioning seat is respectively formed with an air inlet and an exhaust hole connecting the upper ring groove and the lower ring groove; the rotating tray on the upper side of the positioning seat The plug sleeve is fixed with a ring gear, and the ring gear is meshed with a drive gear, and the drive gear plug sleeve is fixed on the rotating shaft of the servo motor, and the servo motor is fixed on the upper end surface of the pneumatic chuck between the jaws.

Preferably, the upper end surface of the detection pad is higher than the upper end surface of the rotating tray, the upper end surface of the rotating tray is higher than the upper end surface of the ring gear, and the central axis of the rotating tray coincides with the central axis of the pneumatic chuck.

Preferably, the diameter of the inner wall of the positioning seat is equal to the diameter of the outer wall of the rotating tray, and the upper side of the upper ring groove, the lower side of the lower ring groove, and the outer wall of the rotating tray between the upper ring groove and the lower ring groove are all against the sealing ring, The sealing ring is plugged and fixed on the positioning seat.

Preferably, the air intake hole and the exhaust hole of the positioning seat are respectively screwed and fixed with an air intake quick joint and an exhaust air joint, and the air intake quick joint and the exhaust air joint are respectively plugged with an air intake pipe and an exhaust pipe. The air intake pipe is fixedly connected with a pressure sensor.

Preferably, the upper end surface of the suction cup is flush with the upper end surface of the detection pad.

Preferably, there are four claw blocks, and the claw blocks are uniformly distributed circularly around the central axis of the pneumatic chuck.

Preferably, a thrust bearing is interposed between the pneumatic chuck and the spacer.

The beneficial effect of the present invention is that the clamping table adopted can clamp and fix the workpiece, and can drive the rotation of the workpiece, which facilitates the processing of the workpiece. Precision.

Description of drawings

Fig. 1 is the three-dimensional structural representation of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of another angle of the present invention;

Fig. 3 is a partial cross-sectional schematic diagram of the present invention in the front view direction.

In the figure: 1. Working platform; 2. Pneumatic chuck; 21. Gripper; 3. Spacer; 4. Claw block; 5. Rotary tray; 51. Adsorption hole; 52. Airtight detection hole; Groove; 54, upper ring groove; 55, lower ring groove, 56, air inlet groove; 57, air outlet groove; 6, suction cup; 7, detection pad; 8, positioning seat; 9, ring gear; 10, driving gear; 11. Servo motor; 12. Intake quick connector; 13. Exhaust quick connector.

Detailed ways

Embodiment: As shown in Figures 1 to 3, a vertical CNC machine tool provided with a multifunctional clamping platform includes a working platform 1 of the vertical CNC machine tool, and a vertical pneumatic clamp is fixed on the upper end surface of the working platform 1 Disc 2, a number of jaws 21 are formed on the upper surface of the pneumatic chuck 2, and the outer ends of the jaws 21 are fixedly connected with vertical claw blocks 4, and the air chuck 2 between the adjacent jaws 21 A spacer 3 is fixed on the end surface, and a rotating tray 5 is provided directly above the middle of the pneumatic chuck 2, and the lower end surface of the rotating tray 5 is against the spacer 3; the middle part of the upper end surface of the rotating tray 5 is formed with an adsorption hole 51 A plurality of airtight detection holes 52 are formed on the rotary tray 5 around the adsorption hole 51, and an annular ventilation groove 53 communicating with the airtight detection holes 52 is formed in the rotary tray 5; Shaped upper ring groove 54 and lower ring groove 55, the air inlet groove 56 connecting the upper ring groove 54 and the annular ventilation groove 53 is formed in the rotating tray 5, and the air outlet connecting the lower ring groove 55 and the adsorption hole 51 is formed in the rotating tray 5 Groove 57; suction cup 6 is plugged and fixed in the suction hole 51 of the rotating tray 5, and a detection pad 7 is plugged and fixed in the airtight detection hole 52, and an air outlet hole connected to the airtight detection hole 52 is formed on the detection pad 7 ;

An annular positioning seat 8 is fixed on the sleeve of the rotating tray 5, and the positioning seat 8 is respectively formed with an air inlet and an exhaust hole connecting the upper ring groove 54 and the lower ring groove 55; the positioning seat 8 The ring gear 9 is fixed on the rotary tray 5 on the upper side, and the drive gear 10 is meshed on the ring gear 9. The drive gear 10 is fixed on the rotating shaft of the servo motor 11 through the sleeve, and the servo motor 11 is fixed between the jaws 21. On the upper end face of the pneumatic chuck 2.

The upper end surface of the detection pad 7 is higher than the upper end surface of the rotating tray 5, the upper end surface of the rotating tray 5 is higher than the upper end surface of the ring gear 9, and the central axis of the rotating tray 5 coincides with the central axis of the pneumatic chuck 2.

The diameter of the inner wall of the positioning seat 8 is equal to the diameter of the outer wall of the rotating tray 5, and the upper side of the upper ring groove 54, the lower side of the lower ring groove 55, and the outer wall of the rotating tray 5 between the upper ring groove 54 and the lower ring groove 55 are all against There is a sealing ring, and the sealing ring is plugged and fixed on the positioning seat 8.

The air intake hole and the exhaust hole of the positioning seat 8 are respectively screwed and fixed with an air intake quick joint 12 and an exhaust quick joint 13, and the air intake quick joint 12 and the exhaust quick joint 13 are respectively plugged with an air intake pipe and an exhaust air joint. The exhaust pipe and the air intake pipe are fixedly connected with a pressure sensor.

The upper end surface of the suction cup 6 is flush with the upper end surface of the detection pad 7 .

The claw blocks 4 are provided with four, and the claw blocks 4 are evenly distributed in a circular shape around the central axis of the pneumatic chuck 2 .

A thrust bearing is interposed between the pneumatic chuck 2 and the block 3 .

Working principle: The present invention is a vertical CNC machine tool with a multifunctional clamping table. The main technical feature lies in the clamping table on the vertical CNC machine tool. The clamping table has multiple functions. One is to use a pneumatic chuck 2 to realize the movement of the claw block 4, and the claw block 4 can clamp and fix the workpiece; the second is to supply air to the air-tight detection hole 52 through the air intake pipe, and use the pressure sensor to detect the change of air pressure, which can detect whether the workpiece is installed in place and avoid the workpiece The third is to use the claw block 4 to drive the workpiece to move, and then use the suction cup 6 to absorb the workpiece after realizing the center positioning of the workpiece to prevent the workpiece from moving, and then start the servo motor 11 to realize the rotation of the workpiece by using gear transmission, such as a circular workpiece , which needs to be processed on equal parts on the circular workpiece, as long as the rotary pallet 5 is driven to rotate, and the workpiece is clamped and fixed by the claw block 4, the processing part can be moved to the bottom of the tool without translation of the tool.

The examples are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be listed in the claims of the present invention.

Claims

A vertical numerically controlled machine tool provided with a multifunctional clamping table, comprising a working platform (1) of the vertical numerically controlled machine tool, a vertical pneumatic chuck (2) is fixed on the upper end surface of the working platform (1), and the pneumatic clamping Several jaws (21) are formed on the upper end surface of the disc (2), and the outer ends of the jaws (21) are fixedly connected with vertical jaw blocks (4). A cushion block (3) is fixed on the upper end surface of the pneumatic chuck (2), and it is characterized in that: a rotating tray (5) is arranged directly above the middle part of the pneumatic chuck (2), and the lower end surface of the rotating tray (5) is against the On the pad (3); the middle part of the upper end surface of the rotary tray (5) is formed with an adsorption hole (51), and several airtight detection holes (52) are formed on the rotary tray (5) around the adsorption hole (51) , the rotating tray (5) is formed with an annular ventilation groove (53) connected to the airtight detection hole (52); the outer wall of the rotating tray (5) is respectively formed with a circular upper ring groove (54) and a lower ring Groove (55), the air intake groove (56) that is connected with the upper ring groove (54) and the annular ventilation groove (53) is molded in the rotating tray (5) and is formed with connecting the lower ring groove (55) and the ring groove (55) in the rotating tray (5). The air outlet groove (57) of the adsorption hole (51); the suction cup (6) is inserted and fixed in the adsorption hole (51) of the rotary tray (5), and the detection pad is inserted and fixed in the airtight detection hole (52) (7), forming an air outlet connected to the airtight detection hole (52) on the detection pad (7);

The upper sleeve of the rotating tray (5) is fixed with a ring-shaped positioning seat (8), and the positioning seat (8) is respectively formed with an air inlet connected to the upper ring groove (54) and the lower ring groove (55). and exhaust holes; the ring gear (9) is fixed on the rotating tray (5) on the upper side of the positioning seat (8), and the ring gear (9) is meshed with a drive gear (10), and the drive gear (10) The socket is fixed on the rotating shaft of the servomotor (11), and the servomotor (11) is fixed on the upper end surface of the pneumatic chuck (2) between the jaws (21).
A vertical numerical control machine tool provided with a multifunctional clamping table according to claim 1, characterized in that: the upper end surface of the detection pad (7) is higher than the upper end surface of the rotating tray (5), and the rotating tray The upper end surface of (5) is higher than the upper end surface of ring gear (9), and the central axis of rotating tray (5) coincides with the central axis of pneumatic chuck (2).
A vertical numerically controlled machine tool provided with a multifunctional clamping table according to claim 1, wherein the diameter of the inner wall of the positioning seat (8) is equal to the diameter of the outer wall of the rotating tray (5), and the upper ring groove ( 54) The upper side, the lower side of the lower ring groove (55) and the outer wall of the rotating tray (5) between the upper ring groove (54) and the lower ring groove (55) are all against the sealing ring, and the sealing ring is plugged and fixed on the on the positioning seat (8).
According to claim 3, a vertical numerically controlled machine tool provided with a multi-functional clamping platform, characterized in that: the air intake hole and the exhaust hole of the positioning seat (8) are respectively screwed and fixed with fast air intake holes. Connector (12) and exhaust quick joint (13), on the air intake quick joint (12) and exhaust quick joint (13), insert respectively intake pipe and exhaust pipe, be fixedly connected with pressure sensor on the intake pipe.
A vertical numerical control machine tool provided with a multifunctional clamping table according to claim 1, characterized in that: the upper end surface of the suction cup (6) is flush with the upper end surface of the detection pad (7).
A vertical numerically controlled machine tool provided with a multifunctional clamping table according to claim 1, characterized in that: four claw blocks (4) are provided, and the claw blocks (4) wrap around the pneumatic chuck (2 ) is uniformly distributed around the central axis.
A vertical numerical control machine tool provided with a multifunctional clamping table according to claim 1, characterized in that: a thrust bearing is interposed between the pneumatic chuck (2) and the block (3).