CN103481068A

CN103481068A - Numerically-controlled vertical rotary working table

Info

Publication number: CN103481068A
Application number: CN201310436739.2A
Authority: CN
Inventors: 赵秋德; 宋修贵; 曲志杨
Original assignee: YANTAI SANLI INDUSTRIAL Co Ltd
Current assignee: YANTAI SANLI INDUSTRIAL Co Ltd
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-01-01

Abstract

The invention provides a numerically-controlled vertical rotary working table. The numerically-controlled vertical rotary working table comprises a tool body; a servo motor which is arranged on the tool body is connected with a gear reducer through screws; the gear reducer is connected with a gear; a worm is fixedly arranged on a gear which is meshed with the gear; the worm is meshed with a worm gear; an inner hole of the tool body is provided with a main shaft; the working table is fixedly arranged at one end of the main shaft; the worm gear is fixedly arranged on the main shaft; a ball bearing is arranged on one side of the worm gear and between the mains shaft and the tool body; a transition sleeve is fixedly arranged on the other side of worm gear of the tool body; a combined bearing is arranged between the main shaft and the transition sleeve; the tool body is provided with a braking oil cylinder and a braking cover; a piston is arranged in the braking oil cylinder; the end portion of the piston is provided with a braking piece which is in contact with the braking cover. According to the numerically-controlled vertical rotary working table, the bilateral sides of a worm gear pair are supported by the bearings and accordingly abrasion of the worm gear pair is greatly reduced and the bearing capability is improved and eight small piston oil cylinders are utilized to lock the rear end of the mains shaft of the rotary table tightly and accordingly enough locking force can be provided and the product cost is reduced.

Description

The digital control vertical rotary table

Technical field

The invention belongs to mechanical field, relate in particular to the digital control vertical rotary table that a kind of high calibration heavily carries.

Background technology

The digital control vertical rotary table is the desirable accessory kit of all kinds of digital-control boring-milling machines and machining center, and the main shaft level is installed on the host work table top, and turntable, under the main frame related Control System is controlled, can complete various calibration revolution work.The mechanical precision of existing digital control vertical rotary table mainly guarantees by increasing angular encoder on worm gear or main shaft, but when bearing heavy duty, just can't guarantee its precision, while worm gear quick abrasion, life of product is short, adopt whole large piston to be locked, locking effect is poor, cost is higher simultaneously.

Summary of the invention

The invention provides a kind of digital control vertical rotary table, solved the shortcoming that the digital control vertical rotary table in the background technology can not bear heavy duty, low precision.

Technical scheme of the present invention is achieved in that the digital control vertical rotary table, comprise a body, servomotor on the bed body is connected with reductor by screw, reductor is connected with gear, gear and the engagement of another gear, fixedly be equipped with worm screw on another gear, the worm and wheel engagement, bed body endoporus is provided with main shaft, main shaft one end fixedly is equipped with workbench, worm gear is fixedly mounted on main shaft, one side of worm gear, be provided with ball bearing between main shaft and bed body, fixedly be equipped with spacer shell on the bed body of worm gear opposite side, be provided with combination bearing between main shaft and spacer shell, establish stop locking oil cylinder and the tight lid of stopping on the bed body, stop in locking oil cylinder and be provided with piston, the tight sheet of stopping is established in the end of piston, the tight sheet of stopping contacts with the tight lid of stopping,

8 locking oil cylinders of stopping of radial equipartition, piston, the tight sheet of stopping on the bed body;

Bed is established the locking be connected with system control cabinet on body and is unclamped the sensor of posting a letter, the zero-bit sensor of posting a letter.

The invention has the beneficial effects as follows: the present invention all has bearings in the worm gear both sides, about when main shaft rotates, 2 are supported stressed relative equilibrium, the wearing and tearing of worm gear have greatly been reduced, extended the service life of indexing component worm gear and even whole product, and it is stressed to adopt two supports of major-minor to avoid a bit supporting the lever formed, and has greatly improved bearing capacity; The turntable rear-end of spindle has adopted the locking of eight small piston fuel tanks, has avoided the whole large piston of traditional product one to lock bad processing, disadvantage that cost is high, can guarantee the coupling mechanism force that provides enough, has reduced again the cost of product.

The accompanying drawing explanation

Fig. 1 is generalized section of the present invention;

Fig. 2 is top view of the present invention.

Part explanation: 1, workbench, 2, main shaft, 3, the bed body, 4, combination bearing, 5, the indexing component worm gear, 6, ball bearing, 7, the locking oil cylinder of stopping, 8, piston, 9, the tight sheet of stopping, 10, the tight lid of stopping, 11, worm screw, 12, gear, 13, gear, 14, reductor, 15, servomotor, 16, the sensor of posting a letter is unclamped in locking, and 17, the zero-bit sensor of posting a letter, 18, spacer shell.

The specific embodiment

Describe digital control vertical rotary table of the present invention in detail below in conjunction with accompanying drawing 1 and accompanying drawing 2, comprise a body 3, servomotor 15 on bed body 3 is connected with reductor 14 by screw, reductor 14 is connected with gear 13, gear 13 and gear 12 engagements, fixedly be equipped with worm screw 11 on gear 12, worm screw 11 and worm gear 5 engagements, bed body 3 endoporus are provided with main shaft 2, main shaft 2 one ends fixedly are equipped with workbench 1, worm gear 5 is fixedly mounted on main shaft 2, one side of worm gear 5, be provided with ball bearing 6 between main shaft 2 and bed body 3, ball bearing 6 supports as secondary, fixedly be equipped with spacer shell 18 on the bed body 3 of worm gear 5 opposite sides, be provided with combination bearing 4 between main shaft 2 and spacer shell 18, combination bearing 4 is as main support, itself has pretension bearing, and three-row cylinder roller is arranged, so it can bear from power axial and radially simultaneously, in the worm gear both sides, bearings is all arranged like this, about when main shaft 2 rotation, 2 are supported stressed relative equilibrium, the wearing and tearing of worm gear have greatly been reduced, extended the service life of indexing component worm gear and even whole product, and it is stressed to adopt two supports of major-minor to avoid a bit supporting the lever formed, greatly improved bearing capacity, stop locking oil cylinder 7 and the tight lid 10 of stopping of eight of radial equipartitions on bed body 3, stop in locking oil cylinder 7 and be provided with piston 8, the tight sheet 9 of stopping is established in the end of piston 8, the tight sheet 9 of stopping contacts with the tight lid 10 of stopping, main shaft 2 rear ends have adopted eight small piston fuel tank lockings, avoided the whole large piston of traditional product one to lock bad processing, the disadvantage that cost is high, can guarantee the coupling mechanism force that provides enough, reduced again the cost of product, establish locking on bed body 3 and unclamp the sensor 16 of posting a letter, the zero-bit sensor 17 of posting a letter, locking is unclamped post a letter sensor 16 and the zero-bit sensor 17 of posting a letter and all is connected with system control cabinet, after action puts in place by signal feedback in system control cabinet.

Servomotor 15 drives reductor 14 and rotates, reductor 14 driven gears 13, gear 12 rotate, gear 12 drives worm screw 11 and rotates, worm screw 11 drives worm gear 5, thereby worm screw 5 drives main shaft 2 and workbench 1 rotates, after workbench 1 rotate in place, system control cabinet is controlled servomotor 15 and is stopped, then system control cabinet is controlled Hydraulic Station, Hydraulic Station output hydraulic pressure oil is to bed body 3, promote the piston 8 tight sheet 9 of stopping and be pressed on the tight lid 10 of stopping, main shaft 2 is stopped tightly, lock simultaneously unclamp the sensor 16 of posting a letter by signal feedback in system control cabinet.

Claims

1. digital control vertical rotary table, comprise a body (3), servomotor (15) on bed body (3) is connected with reductor (14) by screw, reductor (14) is connected with gear (13), gear (13) and gear (12) engagement, gear (12) above fixedly is equipped with worm screw (11), worm screw (11) and worm gear (5) engagement, it is characterized in that a body (3) endoporus is provided with main shaft (2), main shaft (2) one ends fixedly are equipped with workbench (1), worm gear (5) is fixedly mounted on main shaft (2), one side of worm gear (5), be provided with ball bearing (6) between main shaft (2) and bed body (3), the upper spacer shell (18) that fixedly is equipped with of the bed body (3) of worm gear (5) opposite side, be provided with combination bearing (4) between main shaft (2) and spacer shell (18), establish the locking oil cylinder of stopping (7) on bed body (3) and stop tight lid (10), stop in locking oil cylinder (7) and be provided with piston (8), the tight sheet (9) of stopping is established in the end of piston (8), the tight sheet (9) of stopping contacts with the tight lid (10) of stopping.

2. digital control vertical rotary table according to claim 1, is characterized in that a body (3) upper 8 locking oil cylinders of stopping of radial equipartition (7), piston (8), the tight sheet (9) of stopping.

3. digital control vertical rotary table according to claim 1, is characterized in that on a body (3) establishing the locking be connected with system control cabinet and unclamp the sensor of posting a letter (16), the zero-bit sensor (17) of posting a letter.