CN115041974A

CN115041974A - Rotary table

Info

Publication number: CN115041974A
Application number: CN202210802569.4A
Authority: CN
Inventors: 狄梦迟
Original assignee: Keweier Industrial Technology Changzhou Co ltd
Current assignee: Keweier Industrial Technology Changzhou Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-09-13

Abstract

The invention discloses a rotary table, which comprises a rectangular box body, wherein a dial is arranged on the outer side of the box body, the dial is driven by a power part in the box body, the power part is provided with a gap adjusting group and an adapting group, the gap adjusting group is divided into two groups which are respectively arranged at two ends of a roller ring surface worm and used for adjusting a matching gap between the roller ring surface worm and a rotary tower; the adaptive group is arranged at the power output end of the roller ring surface worm and is used for adapting the matching of the transmission gear. The invention achieves the aim of no clearance between the roller and the worm by adjusting the angle of the eccentric wheel, thereby greatly improving the precision of the turntable.

Description

Rotary table

Technical Field

The invention relates to the technical field of machine tool components, in particular to a rotary table.

Background

The numerical control turntable forms a social supporting system, which is a necessary result of economic development of the market, and is a necessary way for improving the product level, shortening the delivery time, reducing the cost and making a large scale, and the specialized production and social cooperation are the direction of the development of numerical control accessories in China.

The precision rotary table is a key part of the machine tool, and the rotation precision of the rotary table determines the overall performance of the machine tool and the precision of a machined part. The machine tool rotary table commonly used at present has a worm gear rotary table, but the worm gear rotary table has certain wearing and tearing in the use, can produce the clearance after wearing and tearing, and the precision will reduce when using.

Disclosure of Invention

According to the technical problem to be solved, the rotary table is provided.

In order to achieve the purpose, the turntable comprises a rectangular box body, wherein a dial is arranged on the outer side of the box body, the dial is driven by a power part in the box body, the power part is provided with a clearance adjusting group and an adapting group, the clearance adjusting group comprises two groups, the two groups are respectively arranged at two ends of a roller ring surface worm and are used for adjusting the matching clearance between the roller ring surface worm and a turret; the adaptive group is arranged at the power output end of the roller ring surface worm and is used for adapting the matching of the transmission gear.

Preferably, clearance adjustment group includes eccentric wheel, roller anchor ring worm, adjusting nut and thrust bearing, the end cap of roller anchor ring worm has cup jointed thrust bearing, and the outside cover that is located thrust bearing has the eccentric wheel, and the eccentric wheel passes through fastening bolt to be fixed at the box inner chamber wall, adjusting nut threaded connection is in the eccentric wheel, and the bottom is laminated with thrust bearing one side.

Preferably, the fixing hole on the eccentric wheel cover is a kidney-shaped hole.

Preferably, the fitting set comprises a large helical gear, an expansion coupling sleeve and a small helical gear, the large helical gear is sleeved on one side of the roller ring surface worm at the output end, the small helical gear matched with the large helical gear is fixed on the output shaft of the motor, the large helical gear is expanded with the roller ring surface worm through the expansion coupling sleeve, and the large helical gear is relatively attached to the inclined surface of the small helical gear.

Preferably, the side wall of the outer side of the box body is provided with a viewing port.

Has the advantages that: according to the turntable, the friction is reduced through the cooperation of the roller and the worm; the angular adjustment clearance of the eccentric wheel is adjusted to ensure that the roller and the worm have no clearance, thereby improving the precision of the rotary table.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a cross-sectional view taken at A-A of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a front view of the present invention.

In the figure: 1 is an observation port; 2 is a box body; 3 is an eccentric wheel; 4 is a dial scale; 6 is a turret; 7 is a roller; 8 is a roller ring surface worm; 9 is an adjusting nut; 10 is a thrust bearing; 12 is a big bevel gear; 13 is an expansion coupling sleeve; and 14 is a bevel pinion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

The turntable exterior will be explained first.

As shown in fig. 2 and 3, the box body 2 outside the turntable is divided into six surfaces, a sliding block is fixed on the lower bottom surface, and the sliding block is embedded into the workbench and then fixed;

a rotatable dial 4 is arranged on the front view surface shown in fig. 3, and the surface of the dial 4 is provided with a sliding groove which can be provided with a chuck or the like;

the observation port 1 shown in fig. 3 can observe the internal situation in real time; according to the side shown in fig. 2, and the opposite side to which the eccentric 3 is fixed, the degree of engagement between the roller-ring worm 8 and the turret 6 can be adjusted by rotating the eccentric 3.

Next, the inside of the turntable will be explained.

As shown in fig. 1, an output shaft of a power source outside a box body 2 is positioned in an inner cavity of the box body 2, a small helical gear 14 is fixed on the output shaft, the small helical gear 14 is meshed with a large helical gear 12 sleeved at the end part of a long shaft of a roller ring-surface worm 8, a cavity is formed in the center of the large helical gear 12, an expansion coupling sleeve 13 is placed in the cavity and is expanded by screwing a fastening bolt on the expansion coupling sleeve 13, so that the large helical gear 12 is clamped and tightly embraces the end part of the roller ring-surface worm 8, thrust bearings 10 are sleeved at the end part of the short shaft of the roller ring-surface worm 8 and the distance between the large helical gear 12 and a worm tooth at the long end part, an eccentric wheel 3 is sleeved on the outer wall of the thrust bearing 10, eccentric holes on the eccentric wheel 3 are sleeved on the shafts at two ends of the roller ring-surface worm 8 and are fixed on the wall surface of the inner cavity through the fastening bolt;

the inner ring and the outer ring of the eccentric wheel 3 are respectively provided with a fastening hole and an adjusting hole, and the fastening hole of the inner ring is internally connected with an adjusting nut 9 for abutting against a thrust bearing 10; the adjusting holes of the outer ring are formed by arranging a plurality of waist-shaped holes in a row circumferentially, the fastening bolts in the waist-shaped holes are loosened, then the eccentric wheel 3 is rotated to adjust the gap, and the adjusting is completed and then the adjusting is fastened.

The worm teeth of the roller ring worm 8 are meshed with the rollers 7 of the turret 6 right above, and when the roller ring worm 8 drives the turret 6 to rotate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. The utility model provides a turntable, includes rectangle box (2), the outside of box (2) is provided with calibrated scale (4), and calibrated scale (4) are by the inside power portion drive of box (2), its characterized in that: the power part is provided with a clearance adjusting group and an adapting group, the clearance adjusting group is divided into two groups which are respectively arranged at two ends of the roller ring surface worm (8) and used for adjusting the matching clearance between the roller ring surface worm (8) and the turret (6); the adapting group is arranged at the power output end of the roller ring surface worm (8) and is used for adapting the matching of the transmission gear.

2. A turntable as claimed in claim 1, wherein: clearance adjustment group includes eccentric wheel (3), roller anchor ring worm (8), adjusting nut (9) and thrust bearing (10), the end cap of roller anchor ring worm (8) has cup jointed thrust bearing (10), and the outside cover that is located thrust bearing (10) has eccentric wheel (3), and eccentric wheel (3) pass through fastening bolt to be fixed at box (2) inner chamber wall, adjusting nut (9) threaded connection is in eccentric wheel (3), and the bottom is laminated with thrust bearing (10) one side.

3. A turntable as claimed in claim 2, wherein: the fixing hole on the wheel cover of the eccentric wheel (3) is a kidney-shaped hole.

4. A turntable as claimed in claim 1, wherein: the adaptive set comprises a large helical gear (12), an expansion coupling sleeve (13) and a small helical gear (14), the large helical gear (12) is sleeved on one side of the roller ring surface worm (8) located at the output end, the small helical gear (14) matched with the large helical gear (12) is fixed on an output shaft of the motor, the large helical gear (12) is expanded with the roller ring surface worm (8) through the expansion coupling sleeve (13), and the large helical gear (12) is relatively attached to the inclined surface of the small helical gear (14).

5. A turntable as claimed in claim 1, wherein: and an observation port is arranged on the side wall of the outer side surface of the box body (2).