CN202555920U

CN202555920U - Whirlwind cutting threading machine

Info

Publication number: CN202555920U
Application number: CN2012202005190U
Authority: CN
Inventors: 吕杭云; 郑卫锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-07
Filing date: 2012-05-07
Publication date: 2012-11-28
Anticipated expiration: 2022-05-07

Abstract

A whirlwind cutting threading machine comprises a workbench, wherein a machine body is arranged on the workbench, a cutter bar is arranged on the machine body, and a milling cutter is fixed on the end head of the cutter bar. The cutter bar is fixed on an axle center of a rotation main shaft. An eccentric shaft barrel for mounting of the rotation main shaft is disposed in the machine body, and the rotation main shaft is mounted in an eccentric position inside the eccentric shaft barrel. The rear end of the rotation main shaft penetrates through the eccentric shaft barrel and is connected with a rotation motor through a gearbox. The eccentric shaft barrel is connected with a revolution motor which drives the eccentric shaft barrel to rotate. A cross slide way is arranged on the workbench. A screw rod used to control cross sliding of the machine body is arranged on the workbench and connected with the revolution motor. The rotation main shaft and the eccentric shaft barrel are respectively mounted on the machine body through a front end cap and a rear end cap. After improvement of the structure, the whirlwind cutting threading machine is not only wide in application ranges, but also high in efficiency and powerful in functions because a plurality of devices can be used for simultaneous machining of multiple positions or multiple end faces of a workpiece due to the fact that the workpiece is fixed and cannot move.

Description

The whirl wind cutting thread machine

Technical field

The utility model relates to field of machining, especially a kind of whirl wind cutting thread machine that is used to cut internal and external screw thread.

Background technology

Whirl wind cutting thread is a kind of method of advanced high efficiency machining screw; Be applicable to the production of the part big in batches, that required precision is higher; In process, can disposable completion cut; The surface quality of cutting is good, and institute's product processed mortality is little, so whirl wind cutting thread has higher efficient and quality with respect to present common tapping method.

Whirl wind cutting thread needs to accomplish five working motions in process: cutterhead drives carbide alloy moulding knife up speed rotation (main motion); Machine tool chief axis drives workpiece and rotates (synkinesia) at a slow speed; Whirlwind mills according to workpiece pitch or helical pitch along workpiece axially-movable (feed motion); Whirlwind mills radial motion (cutting movement); Whirlwind mills the free degree that in the certain angle scope, also has the lead angle adjustment.

But since present whirl wind cutting thread all need with the supporting use of lathe; Need be on lathe with clamping workpiece; Lathe control workpiece rotates and feed motion, therefore makes the workpiece of being processed restricted, can only the processing column body or the workpiece of cylindrical drum; Such as screw mandrel, and the trouble of the clamping workpiece on the lathe; Because workpiece rotates on lathe, unloads workpiece after workpiece such as needs stop operating, and causes the efficiency of loading and unloading of workpiece low; Since be supporting use, if workpiece needs many places processing, such as the two ends of processing work, so just need be through twice loading and unloading and twice feeding processing.

Therefore present whirl wind cutting thread has the some shortcomings part, and the range of work has significant limitation, can't be with its extensive use.

Summary of the invention

The utility model will solve the shortcoming of above-mentioned prior art, and a kind of whirl wind cutting thread machine is provided, and working (machining) efficiency is higher, and range of application is wider.

The utility model solves the technical scheme that its technical problem adopts: this whirl wind cutting thread machine, comprise workbench, and workbench is provided with body; Body is provided with knife bar; Be fixed with milling cutter on the termination of knife bar, wherein knife bar is fixed on the axle center of rotation main shaft, wherein is provided with the eccentric beam barrel that the rotation main shaft is installed in the body; Wherein the rotation main shaft is installed on the eccentric position in the eccentric beam barrel, and the rear end of rotation main shaft is passed eccentric beam barrel and is connected with spinning motor through gear-box; Wherein eccentric beam barrel is connected with the revoluting motor that drives its rotation; Wherein workbench is provided with cross slide way, and on workbench, is provided with the screw mandrel that the control body laterally slides, and screw mandrel is connected on the revoluting motor, and wherein rotation main shaft, eccentric beam barrel all are installed on the body through drive end bearing bracket, rear end cap.This mechanism realizes the rotation of Whirlwind milling cutter, can cut; Through the rotation control knife bar revolution of eccentric beam barrel, circular motion is controlled Whirlwind milling cutter and is carried out around cutting within the specific limits; When eccentric beam barrel rotates; Revoluting motor drives the screw mandrel rotation and drives the Whirlwind milling cutter feed motion, through three different motion realization combining Whirlwind milling cutters workpiece is carried out screw chasing, need not workpiece and rotates or move; Only need workpiece be fixed and get final product; Therefore convenient, easy to the loading and unloading of workpiece, efficient is higher, and more main is the unrestriction to processing work.

Perfect for further, eccentric beam barrel is fixed with revolution gear outward, and wherein revoluting motor is connected with the transmission gear, wherein is in transmission connection through one-way clutch between revolution gear and the transmission gear, also is provided with the brake signal generator on the body.The effect of one-way clutch makes eccentric beam barrel one-directional rotation, eccentric beam barrel is added in the Whirlwind milling cutter feeding rotate man-hour, and when the Whirlwind milling cutter withdrawing, do not rotate; When Whirlwind milling cutter stops operating; The brake signal generator can be located the angle that Whirlwind milling cutter stops; Make the axle center position of Whirlwind milling cutter towards eccentric beam barrel; Whirlwind milling cutter can not touch workpiece in the process of withdrawing like this, avoids Whirlwind milling cutter in the withdrawing process, to cause Whirlwind milling cutter or workpiece to damage with the workpiece collision, thereby plays a protective role.

Screw mandrel is connected with the transmission gear drive, is provided with Norton gear mechanism between screw mandrel and the transmission gear.The rotation of screw mandrel and eccentric beam barrel all is connected the transmission gear; Therefore the speed of screw mandrel driving Whirlwind milling cutter feeding is corresponding with the velocity of rotation of beam barrel; Regulate screw mandrel and transmit the gearratio between the gear through Norton gear mechanism; Thereby the control screw mandrel drives the speed of Whirlwind milling cutter feeding and the velocity of rotation of beam barrel, promptly controls the pitch of Whirlwind milling cutter screw cutting.

Be provided with the eccentric adjusting beam barrel between rotation main shaft and the eccentric beam barrel, wherein the rotation main shaft is connected in the eccentric adjusting beam barrel through bearing shaft.The eccentric adjusting beam barrel is used to regulate the eccentric distance of rotation main shaft, therefore can process the internal thread and the external screw thread of different-diameter size.

Workbench is provided with longitudinal rail, and body is located on this longitudinal rail, and on workbench, is provided with the hydraulic cylinder that makes the body longitudinal sliding motion.This mechanism can control body and on workbench, vertically move, and the location is convenient in the position of scalable Whirlwind milling cutter.

The effect that the utility model is useful is: the utility model improves the whirl wind cutting thread technology; Need not supporting lathe uses; Also need not to rotate or travelling workpiece; Advantages such as only the need fixation workpiece can carry out screw chasing automatically, and the efficient of giving full play to whirling is high, crudy is good, and the assembling of workpiece is simpler.Not only range of application is wider for structure after this improves, and because workpiece is fixed, then can multiple devices processes many places or a plurality of end face of a workpiece simultaneously, and efficient is higher, and is with better function.This compact conformation, reasonable in design, overall volume is little, is convenient to carrying or transportation, and simple in structure, and low cost of manufacture helps extensive popularization.

Description of drawings

Fig. 1 is the outside structural representation of the utility model;

Fig. 2 is the inner structural representation of the utility model;

Fig. 3 is the schematic diagram of the utility model internal structure operation;

Fig. 4 is the user mode figure of the utility model.

Description of reference numerals: body 1, drive end bearing bracket 1-1, rear end cap 1-2, milling cutter 2, knife bar 3, workbench 4; Cross slide way 5, longitudinal rail 6, hydraulic cylinder 7, gear-box 8, rotation main shaft 9, eccentric adjusting beam barrel 10; Eccentric beam barrel 11, revolution gear 12, one-way clutch 13, bearing 14, brake signal generator 15, revoluting motor 16; Norton gear mechanism 17 transmits gear 18, screw mandrel 19, spinning motor 20, workpiece to be processed 21, positioning table 22.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further:

With reference to accompanying drawing: this whirl wind cutting thread machine, comprise workbench 4, workbench 4 is provided with body 1; Body 1 is provided with knife bar 3; Be fixed with milling cutter 2 on the termination of knife bar 3, wherein knife bar 3 is fixed on the axle center of rotation main shaft 9, wherein is provided with the eccentric beam barrel 11 that rotation main shaft 9 is installed in the body 1; Wherein rotation main shaft 9 is installed on the eccentric position in the eccentric beam barrel 11, and the rear end of rotation main shaft 9 is passed eccentric beam barrel 11 and is connected with spinning motor 20 through gear-box 8; Wherein eccentric beam barrel 11 is connected with the revoluting motor 16 that drives its rotation; Wherein workbench 4 is provided with cross slide way 5; And on workbench 4, be provided with the screw mandrel 19 that control body 1 laterally slides; Screw mandrel 19 is connected on the revoluting motor 16, and wherein rotation main shaft 9, eccentric beam barrel 11 all are installed on the body 1 through drive end bearing bracket 1-1, rear end cap 1-2.Before the processing, at first workpiece is positioned, start spinning motor 20; Spinning motor 20 drives Whirlwind milling cutter 2 rotations on the knife bar 3 through rotation main shaft 9; Start revoluting motor 16, revoluting motor 16 drives and transmits gear 18 rotations, and transmission gear 18 drives eccentric beam barrel 11 simultaneously and rotates with screw mandrel 19; Drive Whirlwind milling cutter 2 simultaneously along the workpiece inwall or outer wall revolves round the sun and feed motion, thereby realize screw cutting.

The eccentric beam barrel 11 outer revolution gear 12 that are fixed with, wherein revoluting motor 16 is connected with and transmits gear 18, wherein is in transmission connection through one-way clutch 13 between revolution gear 12 and the transmission gear 18, also is provided with brake signal generator 15 on the body 1.Screw mandrel 19 is in transmission connection with transmitting gear 18, is provided with Norton gear mechanism 17 between screw mandrel 19 and the transmission gear 18.Be provided with eccentric adjusting beam barrel 10 between rotation main shaft 9 and the eccentric beam barrel 11, wherein rotation main shaft 9 is coupling in eccentric adjusting beam barrel 10 through bearing 14.Workbench 4 is provided with longitudinal rail 6, and body 1 is located on this longitudinal rail 6, and on workbench 4, is provided with the hydraulic cylinder 7 that makes body 1 longitudinal sliding motion.This mechanism's flexible operation through the eccentric throw that eccentric adjusting beam barrel 10 is regulated rotation main shaft 9, can be processed the internal and external threads of different-diameter size; Regulate the pitch of machining screw through Norton gear mechanism 17, thereby realize the screw thread of processing different size size.

The most important thing is that the utility model processing work is to need not workpiece to rotate; Therefore enlarged the scope of processing work; Can process the workpiece of different shape, size, only need are fixed workpiece and are located, and can realize position to be processed, the many places of workpiece is processed simultaneously.Like accompanying drawing 4, this workpiece to be processed 21 needs the two ends machining internal thread, but the two-end structure of workpiece to be processed 21 is different; Therefore pass through the fixedly mid portion of workpiece to be processed 21 of positioning table 22; To the end positions of workpiece to be processed 21 location, in the direction of both ends of workpiece to be processed 21 the whirl wind cutting thread machine of the utility model is installed, aim at the two ends of workpiece to be processed 21 and carry out screw chasing; This operation of disposable completion, and give full play to the advantage such as high efficiency, high-quality of whirl wind cutting thread.

Though the utility model is through illustrating and describe with reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1. whirl wind cutting thread machine; Comprise workbench (4); Workbench (4) is provided with body (1), and body (1) is provided with knife bar (3), is fixed with milling cutter (2) on the termination of knife bar (3); It is characterized in that: said knife bar (3) is fixed on the axle center of rotation main shaft (9); Be provided with the eccentric beam barrel (11) that rotation main shaft (9) is installed in the said body (1), said rotation main shaft (9) is installed on the eccentric position in the eccentric beam barrel (11), and the rear end of rotation main shaft (9) is passed eccentric beam barrel (11) and is connected with spinning motor (20) through gear-box (8); Said eccentric beam barrel (11) is connected with the revoluting motor (16) that drives its rotation; Said workbench (4) is provided with cross slide way (5); Said body (1) is located on this guide rail (5); And on workbench (4), be provided with the screw mandrel (19) that control body (1) laterally slides; Screw mandrel (19) is connected on the revoluting motor (16), and said rotation main shaft (9), eccentric beam barrel (11) all are installed on the body (1) through drive end bearing bracket (1-1), rear end cap (1-2).

2. whirl wind cutting thread machine according to claim 1; It is characterized in that: the outer revolution gear (12) that is fixed with of said eccentric beam barrel (11); Said revoluting motor (16) is connected with and transmits gear (18); Be in transmission connection through one-way clutch (13) between said revolution gear (12) and the transmission gear (18), also be provided with brake signal generator (15) on the body (1).

3. whirl wind cutting thread machine according to claim 2 is characterized in that: said screw mandrel (19) is in transmission connection with transmitting gear (18), is provided with Norton gear mechanism (17) between screw mandrel (19) and the transmission gear (18).

4. whirl wind cutting thread machine according to claim 1; It is characterized in that: be provided with eccentric adjusting beam barrel (10) between said rotation main shaft (9) and the eccentric beam barrel (11), said rotation main shaft (9) is coupling in eccentric adjusting beam barrel (10) through bearing (14).

5. whirl wind cutting thread machine according to claim 1; It is characterized in that: said workbench (4) is provided with longitudinal rail (6); Body (1) is located on this longitudinal rail (6), and on workbench (4), is provided with the hydraulic cylinder (7) that makes body (1) longitudinal sliding motion.