WO2022036915A1

WO2022036915A1 - Numerical-control cyclone milling machine

Info

Publication number: WO2022036915A1
Application number: PCT/CN2020/131829
Authority: WO
Inventors: 严小林; 梅建文; 蒋鹏; 瞿盛
Original assignee: 江苏晨光数控机床有限公司
Priority date: 2020-08-17
Filing date: 2020-11-26
Publication date: 2022-02-24
Also published as: CN213033723U

Abstract

A numerical-control cyclone milling machine, wherein a machine base (1) is provided with a plurality of workpiece lifting bases (8), which are evenly arranged at intervals between a clamping jaw base (6) and an ejector pin (7); each workpiece lifting base (8) is internally provided with a workpiece lifting electric cylinder (9), and the workpiece lifting electric cylinder (9) extends upwards out of a V-shaped support base (10) that is for supporting a workpiece (32); and a milling-head moving support (11) is arranged on the machine base (1) and behind the workpiece lifting bases (8), milling-head moving guide rails (12) are respectively arranged on the upper portion and the lower portion of the milling-head moving support (11), a milling-head device is supported on the two milling-head moving guide rails (12) in a guiding manner, a rotary feeding electric motor (20) is arranged on a front side of the front portion of the milling-head moving support (11), the rotary feeding electric motor (20) is in driving connection with one end of a rotary feeding lead screw (21) arranged in a front-back direction, the rotary feeding lead screw (21) is supported on a plurality of lead-screw lifting bases (18) arranged in a cavity between the two milling-head moving guide rails (12), and the other end of the rotary feeding lead screw (21) is connected to the milling-head device in a penetrating manner. The milling machine has a simple and compact overall structure, is stable in terms of support during clamping, supporting, guiding and milling operations, and is conductive to improving operation precision.

Description

A CNC whirlwind milling machine

technical field

The invention relates to a numerically controlled machine tool, in particular to a numerically controlled whirlwind milling machine.

Background technique

The domestic traditional processing of the lead screw requires multiple processes to complete, which is time-consuming and labor-intensive, and the cost is quite high. Compared with domestic equipment, foreign equipment has been greatly improved, the processing time is significantly shortened, and the cost is significantly reduced, but the cost of machine tools and auxiliary equipment for supporting operations is relatively high, and it is difficult to popularize and use.

SUMMARY OF THE INVENTION

The invention provides a numerical control whirlwind milling machine with simple structure, convenient and stable operation and low use cost.

The technical scheme adopted by the present invention is: a numerically controlled whirlwind milling machine, comprising a machine base, a headstock, and a tailstock, the headstock and the tailstock are respectively supported at the front and rear of the machine base, and the headstock is provided with a headstock and a headstock. There is a clamping jaw seat driven by a rotary oil cylinder inside, and a thimble is arranged on the tailstock. A workpiece lifting electric cylinder is arranged in the lifting seat, and the workpiece lifting electric cylinder extends upwards to a V-shaped support for supporting the workpiece; a milling head moving bracket is arranged on the machine base on the rear side of the workpiece lifting seat, and the milling head moving bracket There are milling head moving guide rails on the upper and lower sides. The two milling head moving guide rails guide and support the milling head device. The front side of the milling head moving bracket is provided with a rotary feed motor. The rotary feed motor drives and connects the rotary feed set in the front and rear directions. At one end of the lead screw, the driving lead screw is supported on the lead screw support seat in the cavity between the plurality of moving guide rails of the two milling heads, and the other end of the rotary feed lead screw is connected to the milling head device.

Further, the milling head device includes a milling head moving seat, an upper and lower feeding motor, an upper and lower feeding screw, an upper and lower feeding seat, a pneumatic clamping guide seat, and a cyclone milling head, and the upper and lower ends of the milling head moving seat are guided respectively. It is erected on the moving guide rail of the milling head. The rear side of the moving seat of the milling head is screwed to the rotary feed screw through the conjoined front and rear drive blocks. The upper part of the moving seat of the milling head is provided with an up and down feed motor, which is connected to the vertical support through the shaft. The upper and lower ends of the upper and lower feed screws are connected to the moving seat of the milling head, and the lower ends of the upper and lower feed screws are screwed to the upper and lower drive blocks on the rear side of the upper and lower feed seats. The upper and lower feed seats match the upper and lower guide grooves on the front side of the milling head moving seat Or column, a pneumatic clamping guide seat for clamping and guiding the workpiece is arranged on the moving seat of the milling head, and a whirlwind milling head corresponding to the workpiece and a milling head motor for driving the whirling milling head are arranged on the upper and lower feed seats.

Further, there are two pneumatic clamping guide seats, and the two pneumatic clamping guide seats are respectively arranged on the front and rear parts of the upper and lower feed seats.

Further, a plurality of screw lift cylinders corresponding to each screw lift seat are arranged on the milling head moving support, and each screw lift cylinder is connected to the screw support vertically arranged in the milling head moving support. Lift the upper end of the connecting rod, the middle of the screw lifting rod is hinged on the moving bracket of the milling head and extends forward to the cavity between the two milling head moving guide rails, and the other end of the screw lifting rod is placed in the screw lifting In the lift opening under the seat post, the screw lift seat rod is upwardly connected to the screw lift seat and connected to the lead screw lift support roller seat along the front and rear directions on the screw lift seat.

Further, the other end of the screw lift connecting rod is connected to a lift roller shaft, and the lift roller shaft is placed in the lift port.

During operation, the workpiece to be processed is passed through the upper and lower chucks of the pneumatic clamping guide seat and the cyclone milling head and clamped between the clamping jaw seat and the thimble, and multiple workpiece lifting electric cylinders are controlled to protrude upward through the workpiece lifting seat. The V-shaped support supports the workpiece to be processed at multiple points, and two pneumatic clamping guide seats are respectively guided and clamped on the front and rear parts of the workpiece corresponding to the upper and lower feed seats; when milling, the feeding motor is driven to rotate the feeding wire The rod drives the moving seat of the milling head through the front and rear driving blocks to feed along the axis of the workpiece to be processed on the moving guide of the milling head. The milling head motor drives the whirlwind milling head to rotate, and the up and down feed motor drives the up and down driving blocks through the up and down feed screw The feed seat is fed up and down on the moving seat of the milling head, thereby completing the milling operation of the workpiece to be machined. Open the pneumatic clamping guide seat and the whirlwind milling head. After the whirlwind milling head passes through, it will rise again to support the workpiece. The rotary feed screw is supported by the screw lifting seat through the screw lifting cylinder, the screw lifting connecting rod, and the screw rod. The rod lift seat rod is driven to rise for support. When the milling operation is fed to the position of each screw lift support roller seat, the screw lift oil cylinder at this position drives the screw lift support roller seat to descend to avoid front and rear driving. After the front and rear drive blocks of the moving seat of the milling head pass through, it will rise again to support the rotary feed screw. The overall structure of the milling machine is simple and compact, and the clamping, supporting, guiding and milling operation support is stable, which is beneficial to improve the operation accuracy.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the A-A view of Fig. 1;

FIG. 5 is a B-B view of FIG. 1;

FIG. 6 is a C-C view of FIG. 1;

FIG. 7 is a D-D view of FIG. 1;

Fig. 8 is the E-direction view of Fig. 1;

FIG. 9 is a right side view of FIG. 1 .

In the figure: machine base 1, head frame 2, tail frame 3, spindle box 4, rotary oil cylinder 5, clamping jaw base 6, thimble 7, workpiece lifting seat 8, workpiece lifting electric cylinder 9, V-shaped support 10. Milling head moving bracket 11, milling head moving guide rail 12, screw lifting cylinder 13, screw lifting connecting rod 14, lifting roller shaft 15, screw lifting seat rod 16, lifting port 17, screw rod Lifting seat 18, screw lifting support roller seat 19, rotary feed motor 20, rotary feed screw 21, milling head moving seat 22, front and rear drive blocks 23, up and down feed motor 24, up and down feed screw 25 , Up and down feed seat 26 , upper and lower drive block 27 , pneumatic clamping guide seat 28 , cyclone milling head 29 , milling head motor 30 , spindle rotation motor 31 , and workpiece 32 .

detailed description

The present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in Figure 1-9: A CNC whirl milling machine includes a machine base 1, a headstock 2, a tailstock 3, a spindle box 4, a rotary oil cylinder 5, a clamping jaw seat 6, a thimble 7, a workpiece support seat 8, and a workpiece Lifting electric cylinder 9, V-shaped support 10, milling head moving bracket 11, milling head moving guide rail 12, screw lifting cylinder 13, screw lifting connecting rod 14, lifting roller shaft 15, screw lifting seat Rod 16, screw lift seat 18, screw lift support roller seat 19, rotary feed motor 20, rotary feed screw 21, milling head moving seat 22, front and rear drive blocks 23, up and down feed motor 24, up and down The feed screw 25 , the upper and lower feed seats 26 , the upper and lower drive blocks 27 , the pneumatic clamping guide seat 28 , the whirlwind milling head 29 , the milling head motor 30 , and the spindle rotation motor 31 .

See Figures 1, 2, 3, and 4. The head frame 2 and the tail frame 3 are respectively supported on the front and rear of the machine base 1. The head frame 2 is equipped with a spindle box, which is driven by a rotary oil cylinder 5 and a spindle rotating motor 31. The clamping jaw seat 6, the ejector pin 7 is arranged on the tail frame 3, and the workpiece 32 is clamped and connected between the clamping jaw seat 6 and the ejector pin 7. The machine base 1 is also provided with a plurality of workpiece lifting seats 8 which are evenly spaced between the clamping jaw seat and the thimble. The workpiece lifting seat 8 is provided with a workpiece lifting electric cylinder 9, and the workpiece lifting electric cylinder extends upward. V-shaped support 10 for supporting the workpiece.

As shown in Figures 5 and 7, a milling head moving bracket 11 is arranged on the machine base on the back side of the workpiece support seat, and milling head moving guide rails 12 are provided on the upper and lower parts of the milling head moving bracket. The two milling head moving guide rails guide and support the milling head device , a rotary feed motor 20 is arranged on the front side of the front part of the milling head moving bracket, and the rotary feed motor drives and connects one end of the rotary feed screw 21 arranged in the front and rear directions, and the driving screw is supported in a plurality of cavities between the moving guide rails of the two milling heads On the inner screw holding seat 18, the other end of the rotary feed screw is connected to the milling head device; the milling head device includes a milling head moving seat 22, front and rear drive blocks 23, up and down feed motors 24, and up and down feed screws 25 , the upper and lower feed seat 26, the upper and lower drive blocks 27, the pneumatic clamping guide seat 28, the cyclone milling head 29, the milling head motor 30, the upper and lower ends of the milling head moving seat 22 are respectively guided and erected on the milling head moving guide rail 12, milling head The rear side of the head moving seat 22 is screwed on the rotary feed screw 21 through the conjoined front and rear drive blocks 23, and the upper and lower feed motors 24 are arranged on the upper part of the milling head moving seat 22. The upper end of the upper and lower feed screw 25 in the head moving seat, the lower end of the upper and lower feeding screw is screwed to the upper and lower driving blocks 27 on the rear side of the upper and lower feeding seat 26, and the upper and lower feeding seat 26 cooperates with the upper and lower guides on the front side of the milling head moving seat. Slot or column, the milling head moving seat 22 is provided with a pneumatic clamping guide seat 28 that clamps and guides the workpiece, two pneumatic clamping guide seats are respectively arranged on the front and rear of the upper and lower feed seats, and corresponding The whirling milling head 29 of the workpiece and the milling head motor 30 that drives the whirling milling head.

1, 2, 3, 5, 6, 7, the milling head moving bracket 11 is provided with a plurality of screw lifting cylinders 13 corresponding to each screw lifting seat 18, and each screw lifting cylinder is connected to The upper end of the screw lift connecting rod 14 vertically arranged in the milling head moving bracket, the middle part of the screw lifting link is hinged on the milling head moving bracket and protrudes forward into the cavity between the two milling head moving guide rails. The other end of the rod lifting connecting rod is connected to the lifting roller shaft 15, the lifting roller shaft 15 is placed in the lifting port 17 under the screw lifting seat rod 16, and the screw lifting seat rod is upwardly connected to the screw lifting rod The seat 18 is connected and placed on the lead screw lift support roller seat 19 along the front and rear directions on the lead screw lift seat.

Claims

A CNC whirlwind milling machine comprises a machine base, a headstock and a tailstock. The headstock and the tailstock are respectively supported at the front and rear of the machine base. A headstock is arranged in the headstock, and a clamp driven by a rotary oil cylinder is arranged in the headstock. Claw seat, a thimble is arranged on the tailstock of the machine, and it is characterized in that: the machine base is also provided with a plurality of workpiece lifting seats arranged at even intervals between the clamping claw seat and the thimble, and the workpiece lifting seat is provided with a workpiece lifting seat Electric cylinder, the workpiece lifting electric cylinder protrudes upwards from the V-shaped support that supports the workpiece; a milling head moving bracket is arranged on the machine base on the back side of the workpiece lifting seat, and the milling head moving bracket is provided with a milling head on the upper and lower sides The moving guide rail, the two milling head moving guide rails guide and support the milling head device, the front side of the milling head moving bracket is provided with a rotary feed motor, and the rotary feed motor drives and connects one end of the rotary feed screw set in the front and rear directions, and drives the screw support The other end of the rotary feed screw is connected to the milling head device on a plurality of screw holding seats arranged in the cavity between the two milling head moving guide rails.
The numerical control whirl milling machine according to claim 1, wherein the milling head device comprises a milling head moving seat, an upper and lower feeding motor, an upper and lower feeding screw, an upper and lower feeding seat, a pneumatic clamping guide seat, Cyclone milling head, the upper and lower ends of the milling head moving seat are respectively guided on the milling head moving guide rail. Set up and down feed motors, the up and down feed motors are connected to the vertical support and pass through the upper end of the up and down feed screw in the moving seat of the milling head, and the lower end of the up and down feed screw is screwed to the upper and lower drive blocks on the back of the up and down feed seat, and the up and down feed The upper and lower guide grooves or columns on the front side of the moving seat of the milling head are matched to the seat. The moving seat of the milling head is provided with a pneumatic clamping guide seat that clamps and guides the workpiece. head of the milling head motor.
The numerical control whirl milling machine according to claim 2, wherein there are two pneumatic clamping guide seats, and the two pneumatic clamping guide seats are respectively arranged at the front and rear of the upper and lower feed seats.
The numerical control whirl milling machine according to claim 1, wherein: a plurality of screw lift cylinders corresponding to each screw lift seat are provided on the milling head moving support, and each screw lift cylinder is Both of them are connected to the upper end of the screw lift connecting rod vertically arranged in the milling head moving bracket. The other end of the screw lift connecting rod is placed in the lift port below the screw lift seat rod. The lead screw lifts the support roller seat.
The numerical control whirl milling machine according to claim 4, wherein the other end of the screw lift connecting rod is connected to a lift roller shaft, and the lift roller shaft is placed in the lift port.