CN2915334Y

CN2915334Y - Cyclone enveloped digital control screw bolt milling machine

Info

Publication number: CN2915334Y
Application number: CN 200620074105
Authority: CN
Inventors: 王隆太; 李吉中; 李雪峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-16
Filing date: 2006-06-16
Publication date: 2007-06-27
Anticipated expiration: 2016-06-16

Abstract

The utility model relates to a whirlwind envelope NC screw milling machine, belonging to the NC machine tool field, which comprises a lathe bed and a tool carriage; wherein a whirlwind mill head component is fixed on a small tool carriage, the small tool carriage can be horizontally slidably arranged on the a large tool carriage, and the large tool carriage can be horizontally slidably arranged on the lathe bed. The whirlwind mill head component comprises a mill head bracket, a mill head drive motor, a facer and a rotary sleeve; wherein the rotary sleeve is connected with the mill head bracket through a bearing, one end of rotary sleeve is concentrically fixed on a belt pulley, a belt is arranged between the belt pulley and the output end of the mill head drive motor, the other end of the rotary sleeve is concentrically fixed on the facer, and the at least two small cutter bodies with the same blade are uniformly distributed on the end surface of the facer. The whirlwind envelope processing for various screws can be realized through a standard carbide blade; only a whirlwind facer can realize the cutting processing for all the screws of all parallel & homodromous twin-screw extruder, which greatly reduces the requirements on the cutting tool, omits the expensive tool sharpening equipment, and reduces the costs.

Description

Whirlwind Enveloping Type Numerical Control Screw Milling Machine

Technical field

The utility model belongs to the Digit Control Machine Tool field, is specially adapted to the numerical-control screw rod milling machine of parallel parallel dual-screw extruding machine screw rod processing.

Background technology

The screw spiral face is a kind of abnormal curved surface of complexity, and the machining of helicoid adopts formed turning tool or form cutter to carry out turning usually or milling is shaped.The shape of screw spiral face is subjected to numerous factor affecting such as the molded lines, helical angle, pitch, a number of screw rod, the screw rod of different size and type, its helicoid shape is different, need machine by different forming tools, thereby screw rod processing is bigger to the quantitative requirement of forming tool, need the forming tool sharpening equipment in addition and finish the preparation of forming tool, the cost of charp tool is higher.

The utility model content

The utility model purpose is to design a kind of special-purpose forming tool that need not to change, the Whirlwind Enveloping Type Numerical Control Screw Milling Machine of handled easily.

The utility model comprises lathe bed, main spindle box, tailstock, planker, cyclone milling head assembly, X-axis, Z axle and C axle servomotor and digital control system, main spindle box is fixed on the lathe bed, tailstock is arranged on the lathe bed, the cyclone milling head assembly is fixed on the upper slide rest, upper slide rest laterally slidably is engaged on the saddle, and saddle is longitudinally-slidable to be engaged on the lathe bed.The cyclone milling head assembly comprises milling head bearing, milling head drive motors, facing cutter, turnbarrel, turnbarrel is connected on the milling head bearing by bearing, the concentric affixed belt pulley of one end of turnbarrel, between belt pulley and the milling head drive motors output belt is set, the concentric affixed facing cutter of the turnbarrel other end is at the identical little cutter hub of uniform at least two blades of the end face of facing cutter.

The utility model carries out whirlwind envelop-type processing with regard to realizing to all kinds of screw rods by the standard carbide chip, only need a Whirlwind milling cutter dish, just can realize the screw rod of all parallel parallel dual-screw extruding machines is carried out machining, significantly reduced requirement to cutter, omit expensive tool sharpening apparatus, reduced the cost of charp tool.In addition, screw cutting processing needs cutter is pulled a helical angle usually, in order to avoid produce machining interference.The utility model becomes 0 ° of parallel placement of angle with facing cutter axis and axis of workpiece, need not pull cutting-tool angle, has simplified machine tool structure, has strengthened the lathe rigidity, and the machine cut working ability has obtained reinforcement.

The utility model adopts 35 ° or 55 ° of diamond shaped insert.

In order to strengthen the cutting system rigidity, the fixed top tip structure of the top employing of main spindle box, main spindle box is top coaxial with tailstock centre.

The utility model is provided with synchronous pulley in main spindle box stationary center outer, coaxial, and synchronous pulley is connected with C axle servomotor by synchronous belt, is provided with the shifting block that drives the workpiece rotation in the synchronous pulley end.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is a structural representation of removing the cyclone milling head assembly;

Fig. 3 is the structural representation of cyclone milling head assembly.

Specific embodiment

As shown in Figure 1, 2, 3, the utility model mainly is made up of lathe bed 1, main spindle box 2, tailstock 4, planker 3, cyclone milling head assembly 9, X-axis, Z axle and

C axle servomotor

5,7,11 and digital control system.

Main spindle box 2 is fixed on the lathe bed 1, and tailstock is arranged on the lathe bed 1, and cyclone milling head assembly 9 is fixed on the upper slide rest 3, and upper slide rest 3 places on the saddle 13 and can make traverse motion on saddle 13, but saddle 13 places on the lathe bed 1 and lathe bed 1 on slide.Under the driving of X-axis servomotor 5, upper slide rest 3 can be done the reciprocating motion of X-direction on saddle 13; Under the driving of Z axle servomotor 7, cyclone milling head assembly 9 coexists reciprocating on the Z-direction together with saddle one; Under the driving of C axle servomotor 11, workpiece can rotate around its axle center.

Fixation of C axle servomotor 11 on main spindle box 2, stationary center 24 on the main spindle box 2, top 24 is coaxial with tailstock centre 25, in stationary center 24 outer, coaxial synchronous pulley 26 is set, the output of C axle servomotor 11 is affixed another synchronous pulley 10 with one heart, be connected by belt 27 between belt wheel 26 and the belt wheel 10, be provided with shifting block 23 in synchronous pulley 26 ends, shifting block 23 is used to drive the workpiece rotation.

The cyclone milling head assembly comprises milling head bearing 14, milling head motor 8, facing cutter 19 and turnbarrel 15, and turnbarrel 15 is connected on the milling head bearing 14 by bearing.The concentric affixed belt pulley 20 of one end of turnbarrel 15, affixed another belt pulley 22 of the output of milling head motor 8 is provided with belt 21 between belt pulley 20 and the belt pulley 22.Facing cutter 19 is fixed on the turnbarrel 15 with one heart, at the identical pocket knife body 18 of uniform at least two blades of the end face of facing cutter 19, every the carbide alloy diamond shaped insert of affixed 35 ° or the 55 ° standards of little cutter hub one end, every pocket knife body 18 is pressed on the facing cutter 19 by wedge shape briquetting 17 and trip bolt 16 respectively.

Milling head motor 8 drives facing cutter 19 rotation at a high speed, cooperates the envelope processing of the coordinated movement of various economic factors realization screw spiral face of Z axle, X-axis and C axle.

Claims

1, Whirlwind Enveloping Type Numerical Control Screw Milling Machine, comprise lathe bed, main spindle box, tailstock, planker, the cyclone milling head assembly, X-axis, Z axle and C axle servomotor and digital control system, main spindle box is fixed on the lathe bed, tailstock is arranged on the lathe bed, the cyclone milling head assembly is fixed on the upper slide rest, upper slide rest laterally slidably is engaged on the saddle, saddle is longitudinally-slidable to be engaged on the lathe bed, it is characterized in that the cyclone milling head assembly comprises the milling head bearing, the milling head drive motors, facing cutter, turnbarrel, turnbarrel is connected on the milling head bearing by bearing, the concentric affixed belt pulley of one end of turnbarrel, between belt pulley and the milling head drive motors output belt is set, the concentric affixed facing cutter of the turnbarrel other end is at the identical little cutter hub of uniform at least two blades of the end face of facing cutter.

2,, it is characterized in that described little cutter hub is 35 ° or 55 ° of diamond shaped insert according to the described Whirlwind Enveloping Type Numerical Control Screw Milling Machine of claim 1.

3, according to the described Whirlwind Enveloping Type Numerical Control Screw Milling Machine of claim 1, it is characterized in that the fixed top tip structure of the top employing of main spindle box, main spindle box is top coaxial with tailstock centre.

4, according to the described Whirlwind Enveloping Type Numerical Control Screw Milling Machine of claim 3, it is characterized in that synchronous pulley being set in main spindle box stationary center outer, coaxial, synchronous pulley is connected with C axle servomotor by synchronous belt, is provided for driving the shifting block of workpiece rotation in the synchronous pulley end.