CN102615302A

CN102615302A - Bidirectional rotary electric cutter rest

Info

Publication number: CN102615302A
Application number: CN201210107327XA
Authority: CN
Inventors: 杨俊召; 吴华平
Original assignee: CHANGZHOU HONGDA MACHINE TOOL CNC Co Ltd
Current assignee: CHANGZHOU HONGDA MACHINE TOOL CNC Co Ltd
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2012-08-01

Abstract

The invention discloses a bidirectional rotary electric cutter rest. The bidirectional rotary electric cutter rest comprises a box body, a cutter head, a gear shaft, a rotary shaft, a roller carrier, an outer gear ring, an inner gear ring which is sleeved on the rotary shaft, a motor which can rotate forwardly and reversely, and a clamping gear ring which can be meshed with the inner gear ring and the outer gear ring, wherein a gear is sleeved on the gear shaft; the motor drives the gear shaft to rotate; the gear is meshed with the roller carrier; the roller carrier is supported on the rotary shaft rotatably; the clamping gear ring is moveably sleeved on the rotary shaft through a key; the inner gear ring is fixedly connected with the cutter head; the outer gear ring is fixedly connected with the box body; the bidirectional rotary electric cutter rest also comprises a primary positioning pin; the back end surface of the clamping gear ring is a step plane; a roller which can roll along the back end surface of the clamping gear ring is installed inside the roller carrier; a key slot which is matched with the key is formed on the roller carrier; and a plurality of primary positioning slots which are matched with the primary positioning pin are formed on the clamping gear ring. The bidirectional rotary electric cutter rest is high in locking speed and locking stability and low in noise.

Description

The bi-directional rotary electric driving tool post

Technical field

The present invention relates to a kind of bi-directional rotary electric driving tool post, be used on the automatic flying knife tower of Digit Control Machine Tool.

Background technology

At present, the automatic flying knife tower of Digit Control Machine Tool is driven by servomotor, adopts the positive converted of motor, coarse positioning spacing, the structure of motor counter-rotating locking.There is error in uncertain and part processing because of load, adds the difference that exists in the electrical control, and therefore for guaranteeing that knife rest can reliably working, cutterhead needs a certain amount of overshoot when tool changing is just changeed, and promptly the coarse positioning pin is faced directly to face directly with locating slot and will be thrown off a segment distance.When knife rest was locked, the coarse positioning pin pressed down under spring action, and cutterhead and cutterhead annex, cutter and pin dish etc. reverse under driven by motor, faced directly with suitable speed and coarse positioning pin and collided and dead by its limit, thereby realize the knife rest locking action.Because of the coarse positioning pin can only slide up and down in guide; And guide is fixed in the locating hole of casing, causes the coarse positioning pin need bear the huge impact shearing force, can produce following problem: vibrating noise was big when 1) knife rest was locked; Influence machine tool accuracy, infringement operator hearing; 2) knife rest locking speed is slow, can produce loosening phenomenon owing to extraneous stressed or vibrations after the locking.

Summary of the invention

The objective of the invention is to overcome the defective of prior art, provide a kind of speed of locking fast and lock stable bi-directional rotary electric driving tool post.

The technical scheme that realizes the object of the invention is: a kind of bi-directional rotary electric driving tool post, but it comprise casing, cutterhead, gear shaft, gyroaxis, turning rolls, external toothing, be sleeved on ring gear and rotating on the gyroaxis motor and can with the clamping gear ring of ring gear and external toothing engagement, be set with gear on the gear shaft; The rotation of motor-driven gear axle, gear and turning rolls engagement, turning rolls can be rotated to support on the gyroaxis; Clamping gear ring is sleeved on the gyroaxis through key movably; Ring gear is fixedly connected with cutterhead, and external toothing is fixedly connected with casing, also comprises alignment pin just; The rear end face that clamps gear ring is a cascaded surface; Be equipped with in the turning rolls and can have the keyway that cooperates with key on the turning rolls, clamp and have the first locating slot that some and first alignment pin cooperates on the gear ring along the roller of the rear end face rolling that clamps gear ring.

Further, be set with butterfly spring on the described gyroaxis, also prop up the locking nut of butterfly spring one side on the described gyroaxis through being threaded, the opposite side of butterfly spring is against on the rear end face of turning rolls.

Further, be fixed with key seat in the described casing, the both sides of casing respectively are fixedly connected with the key seat stifle, and described alignment pin just is inserted on the key seat movably, and the two ends of key seat are respectively installed with cushion pad, and the outside of cushion pad is against on the key seat stifle.

Further, be set with the travelling gear that is connected with motor on the described gear shaft, be provided with some alignment pins between travelling gear and the gear shaft, be set with beam on the alignment pin.

After having adopted technique scheme, when the flying knife tower was worked automatically, motor rotated, and rotates through the gear driven turning rolls; And this moment, gyroaxis did not rotate, and the roller in the turning rolls is rolled into concave surface by the convex surface that clamps the gear ring rear end face, moved behind the clamping gear ring, and three gear rings are thrown off engagement; And drive the keyway that the key that is installed on the gyroaxis inserts turning rolls, thus driving the gyroaxis rotation, the gyroaxis of rotation drives the ring gear rotation, thereby drives the cutterhead rotation; When cutterhead forwarded assigned address to, electrical autocontrol element control just alignment pin was inserted in the first locating slot that clamps gear ring, accomplishes location just, and the motor of electrical autocontrol element control then suspends the back reverse rotation; Through the reverse rotation of gear driven turning rolls, the roller in the turning rolls is rolled into convex surface by the concave surface that clamps the gear ring rear end face, clamps the gear ring reach; Be installed in the keyway of the key disengaging turning rolls on the gyroaxis, with ring gear, external toothing engagement, motor stops operating; Accomplish locking action, locking speed is fast, and also more stable after the locking; During the completion locking action, owing to the reaction force principle, extruding disk spring in the outer face of turning rolls makes disk spring produce compression, thereby is keeping coupling mechanism force, has guaranteed can or not shake owing to the stressed of the external world after knife rest is locked to produce loosening phenomenon; When the motor band cutterhead and rotated to assigned address, when first alignment pin inserted in the first locating slot that clamps gear ring, cutterhead speed was very fast; Suddenly stop, the impulsive force that first alignment pin receives is bigger, in order to reduce shock and vibration; Be provided with key seat and cushion pad, make impulsive force be delivered on the key seat, be delivered to again on the cushion pad; Impact greatly and alleviate, make the knife rest steady positioning, noise is less; Beam the effect of the gear drive process being played damping is set, make also in the blade holder turns process that relatively steadily, noise is less.

Description of drawings

Fig. 1 is the structure cutaway view of bi-directional rotary electric driving tool post of the present invention;

Fig. 2 looks partial sectional view for the left side of Fig. 1;

Fig. 3 is roller of the present invention and the fiting relation figure that clamps gear ring.

The specific embodiment

For content of the present invention is expressly understood more easily, below according to specific embodiment and combine accompanying drawing, the present invention is done further detailed explanation,

Shown in Fig. 1～3, a kind of bi-directional rotary electric driving tool post, but it comprise casing 14, cutterhead 8, gear shaft 15, gyroaxis 6, turning rolls 3, external toothing 9, be sleeved on ring gear 7 and rotating on the gyroaxis 6 motor 13 and can with the clamping gear ring 10 of ring gear 7 and external toothing 9 engagements; Be set with gear 12 on the gear shaft 15; 15 rotations of motor 13 gear shaft, gear 12 and turning rolls 3 engagements, turning rolls 3 can be rotated to support on the gyroaxis 6 through bearing; Clamping gear ring 10 is sleeved on the gyroaxis 6 through key 5 movably; Ring gear 7 is fixedly connected with cutterhead 8, and external toothing 9 is fixedly connected with casing 14, also comprises alignment pin 11 just; The rear end face that clamps gear ring 10 is cascaded surface 10-1; Be equipped with in the turning rolls 3 and can have the keyway 3-1 that cooperates with key 5 on the turning rolls 3, clamp and have eight first locating slot 10-2 that cooperate with first alignment pin 11 on the gear ring 10 along the roller 4 of the rear end face rolling that clamps gear ring 10.Just the number of locating slot 10-2 can be determined on a case-by-case basis.

As shown in Figure 1, be set with butterfly spring 2 on the gyroaxis 6, also prop up the locking nut 1 of butterfly spring 2 one sides on the gyroaxis 6 through being threaded, the opposite side of butterfly spring 2 is against on the rear end face of turning rolls 3.

Like Fig. 1, shown in 2; Be fixed with key seat 16 in the described casing 14, the both sides of casing 14 respectively are fixedly connected with key seat stifle 17, and first alignment pin 11 is inserted on the key seat 16 movably; The two ends of key seat 16 are respectively installed with cushion pad 18, and the outside of cushion pad 18 is against on the key seat stifle 17.

As shown in Figure 1, be set with the travelling gear 19 that is connected with motor 13 on the gear shaft 15, be provided with some alignment pins 20 between travelling gear 19 and the gear shaft 15, be set with beam 21 on the alignment pin 20.

Operation principle of the present invention is following:

When the flying knife tower was worked automatically, motor 13 rotated, and drove turning rolls 3 rotations through gear 12; And this moment, gyroaxis 6 did not rotate, and the roller 4 in the turning rolls 3 is rolled into concave surface by the convex surface that clamps gear ring 10 rear end faces, moved behind the clamping gear ring 10; Three gear rings are thrown off engagement, and drive the keyway 3-1 that the key 5 that is installed on the gyroaxis 6 inserts turning rolls 3, thus 6 rotations of drive gyroaxis; The gyroaxis 6 of rotation drives ring gear 7 rotations, thereby drives cutterhead 8 rotations, when cutterhead 8 forwards assigned address to; Electrical autocontrol element control just alignment pin 11 is inserted among the first locating slot 10-2 that clamps gear ring 10, accomplishes location just, and the motor of electrical autocontrol element control then 13 suspends the back reverse rotation; Drive turning rolls 3 reverse rotations through gear 12, the roller 4 in the turning rolls 3 is rolled into convex surface by the concave surface that clamps gear ring 10 rear end faces, clamps gear ring 10 reaches; The key 5 that is installed on the gyroaxis 6 breaks away from the keyway 3-1 of turning rolls 3, and with ring gear 7 and external toothing 9 engagements, motor 13 stops operating; Accomplish locking action, locking speed is fast, and also more stable after the locking; During the completion locking action, owing to the reaction force principle, extruding disk spring 2 in the outer face of turning rolls 3 makes disk spring 2 produce compression, thereby is keeping coupling mechanism force, has guaranteed can or not shake owing to the stressed of the external world after knife rest is locked to produce loosening phenomenon; When motor 13 had been with cutterhead 8 to rotate to assigned address, when first alignment pin 11 inserted among the first locating slot 10-2 that clamps gear ring 10, cutterhead 8 speed were very fast; Suddenly stop, the impulsive force that first alignment pin 11 receives is bigger, in order to reduce shock and vibration; Be provided with key seat 16 and cushion pad 18, make impulsive force be delivered on the key seat 16, be delivered to again on the cushion pad 18; Impact greatly and alleviate, make the knife rest steady positioning, noise is less; Beam 21 the effect of the gear drive process being played damping is set, make also in the blade holder turns process that relatively steadily, noise is less.

Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. bi-directional rotary electric driving tool post; It comprises casing (14), cutterhead (8), gear shaft (15), gyroaxis (6), turning rolls (3), external toothing (9), be sleeved on the gyroaxis (6) ring gear (7) but and the motor of rotating (13) and can with the clamping gear ring (10) of ring gear (7) and external toothing (9) engagement; Be set with gear (12) on the gear shaft (15); Motor (13) gear shaft (15) rotation; Gear (12) and turning rolls (3) engagement; Turning rolls (3) can be rotated to support on the gyroaxis (6), clamps gear ring (10) and is sleeved on movably on the gyroaxis (6) through key (5), and ring gear (7) is fixedly connected with cutterhead (8); External toothing (9) is fixedly connected with casing (14); It is characterized in that: also comprise alignment pin (11) just, the rear end face that clamps gear ring (10) is cascaded surface (10-1), and being equipped with in the turning rolls (3) can be along the roller (4) of the rear end face rolling that clamps gear ring (10); Have the keyway (3-1) that cooperates with key (5) on the turning rolls (3), clamp and have the first locating slot (10-2) that some and first alignment pin (11) cooperates on the gear ring (10).

2. bi-directional rotary electric driving tool post according to claim 1; It is characterized in that: be set with butterfly spring (2) on the described gyroaxis (6); Also prop up the locking nut (1) of butterfly spring (2) one sides on the described gyroaxis (6) through being threaded, the opposite side of butterfly spring (2) is against on the rear end face of turning rolls (3).

3. bi-directional rotary electric driving tool post according to claim 1; It is characterized in that: be fixed with key seat (16) in the described casing (14); The both sides of casing (14) respectively are fixedly connected with key seat stifle (17); Described alignment pin (11) just is inserted on the key seat (16) movably, and the two ends of key seat (16) are respectively installed with cushion pad (18), and the outside of cushion pad (18) is against on the key seat stifle (17).

4. bi-directional rotary electric driving tool post according to claim 1; It is characterized in that: be set with the travelling gear (19) that is connected with motor (13) on the described gear shaft (15); Be provided with some alignment pins (20) between travelling gear (19) and the gear shaft (15), be set with beam (21) on the alignment pin (20).