CN2536330Y

CN2536330Y - Rotary die for numerical controlled rotation punch

Info

Publication number: CN2536330Y
Application number: CN 02219301
Authority: CN
Inventors: 吴宏祥; 潘志华; 王爱民
Original assignee: Jiangsu Jinfangyuan CNC Machine Co Ltd
Current assignee: Jiangsu Jinfangyuan CNC Machine Co Ltd
Priority date: 2002-03-14
Filing date: 2002-03-14
Publication date: 2003-02-19
Anticipated expiration: 2012-03-14

Abstract

The utility model relates to a numerical control turret punching rotating die, belonging to the mechanical processing equipment. The numerical control turret punching rotating die is characterized in that a pair of worm shafts which are synchronously rotated are mounted on die carriers of an upper and a lower dies, worms on the worm shafts are engaged with worm wheels which are mounted on the upper and the lower dies, the tooth thickness of each tooth between two ends of the worm shaft is sequentially increased along the same direction, and a plurality of adjusting shims are mounted between bearings which are arranged on two sides of the worm shaft and bearing end caps. The utility model has the advantages of high transmission precision, convenient adjustment, and enhancing the working efficiency.

Description

The NC turret punch machine rotary die

Technical field

The utility model belongs to machining equipment, relates to a kind of NC turret punch machine rotary die.

Background technology

Use rotary die on the numerical control press, not only can enlarge the processing technology scope of mould, and can save the lead-time, to enhance productivity.But existing rotary die gear-driven accuracy is relatively poor, and upper and lower mould inconsistent phenomenon often takes place, and mould is washed out, and has not only increased use cost, and the maintenance adjustment has limited the raising of production efficiency also than trouble.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes above-mentioned defective, provides a kind of transmission accuracy height, NC turret punch machine rotary die easy to adjust.

NC turret punch machine rotary die of the present utility model includes upper die and lower die, the worm shaft of a pair of synchronous rotation is installed on the mould bases of upper and lower mould, worm screw on the worm shaft and the worm wheel that is installed on the upper and lower mould, the transverse tooth thickness of each tooth between a described worm screw two ends direction vertically increases successively, adjusts pad and several are installed between bearing of worm shaft both sides and the bearing (ball) cover.

The utility model drive mechanism advantages of simple, improved transmission accuracy, simultaneously because the worm-drive of the change transverse tooth thickness that has adopted, and axially adjust helical pitch and the transverse tooth thickness of the position of worm screw by the adjusting pad sheet with the conversion worm screw, eliminate the inter-lobe clearance of worm and gear, not only adjustment, easy to maintenance has also further guaranteed transmission accuracy.

Description of drawings

Fig. 1 is the Facad structure cutaway view of patrix of the present utility model;

Fig. 2 is the plan structure cutaway view of Fig. 1;

Fig. 3 is the Facad structure cutaway view of counterdie of the present utility model;

Fig. 4 is the plan structure cutaway view of Fig. 3.

The specific embodiment

As shown in the figure, the worm shaft 3 of a pair of synchronous rotation is installed on the mould bases of this NC turret punch machine rotary die patrix 1 and counterdie 2, worm screw 4 on the worm shaft is matched with worm gear 5 on being installed in upper and lower mould, rotate to drive upper and lower mould, the transverse tooth thickness of each tooth increases successively along a direction between the axial two ends of worm screw 4, adjusts pad 8 and several are installed between bearing 6 of worm shaft 3 both sides and the bearing (ball) cover 7.In use, worm and gear is because wearing and tearing when inter-lobe clearance occurring, by adjust both sides adjust pad 8 can make worm screw to the less side shaft of transverse tooth thickness to moving, changed the helical pitch of worm screw and increased the transverse tooth thickness of work, to eliminate inter-lobe clearance, guarantee transmission accuracy.

Claims

1, a kind of NC turret punch machine rotary die, include patrix (1) and counterdie (2), it is characterized in that: the worm shaft (3) that a pair of synchronous rotation is installed on the mould bases of upper and lower mould (1,2), worm screw on the worm shaft (4) is matched with worm gear (5) on being installed in upper and lower mould, the transverse tooth thickness of each tooth increases successively along a direction between the axial two ends of described worm screw (4), adjusts pad (8) and several are installed between bearing (6) of worm shaft (3) both sides and the bearing (ball) cover (7).