CN100469523C

CN100469523C - Lower-drive type revolving working-table intermittent mechanism

Info

Publication number: CN100469523C
Application number: CNB2005101220495A
Authority: CN
Inventors: 白志海
Original assignee: CETC 18 Research Institute
Current assignee: CETC 18 Research Institute
Priority date: 2005-11-30
Filing date: 2005-11-30
Publication date: 2009-03-18
Anticipated expiration: 2025-11-30
Also published as: CN1978127A

Abstract

The present invention belongs to an underdrive rotary table intermitting mechanism. It includes machine table plate supported by more than two shafts, table seat on one shaft and rotary table. It is characterized by that between undersurface of the rotary table and upper surface of table seat a closed drive mechanism is set, said drive mechanism includes ratchet wheel, click fixing seat, click and spring. Besides, said invention also provides the working principle of said intermitting mechanism and its operation method.

Description

A kind of lower-drive type revolving working-table intermittent mechanism

Technical field

The invention belongs to the driven type mechanical equipment technical field, particularly relate to a kind of lower-drive type revolving equipment.

Background technology

Present known revolving working-table intermittent mechanism has various drive form, as ratchet calibration slew gear, sheave or cylinder wheel drive slew gear, hydraulic gyration mechanism etc., the all kinds revolving working-table intermittent mechanism can satisfy the needs of corresponding conditions, has different advantages separately, but their exist or work space is little or the manufacturing cost height, or the bigger deficiency that waits of power consumption.

Summary of the invention

The present invention provides the lower-drive type revolving working-table intermittent mechanism that a kind of type of drive is flexible, work space is big, driving power is little for solving problems of the prior art.

The present invention for the technical scheme that solves the technical problem employing that exists in the known technology is: lower-drive type revolving working-table intermittent mechanism, comprise machine bench that plural axle supports, coaxial and be positioned at pedestal and rotary table on the described machine bench successively with one of machine bench, be characterized in: below the described rotary table and be provided with the transmission mechanism of sealing between above the described pedestal; Described transmission mechanism comprises and the ratchet of rotary table coaxial rotation, one group of driving rotating mechanism and two groups of detent mechanisms that the drive ratchet intermittently rotates; Described ratchet is provided with the indexing trough that control drives rotating mechanism and two groups of detent mechanism actions; Described driving rotating mechanism and described two groups of detent mechanisms constitute by ratchet holder, ratchet and spring; Ratchet holder on the described driving rotating mechanism is fixed on above the cam body rocking bar; Ratchet holder on the described detent mechanism is fixed on the pedestal; Be fixed with the upper end that drives driving lever below the described cam body rocking bar; Described pedestal and machine bench are provided with deep-slotted chip breaker between the tow-away zone of deflection driven driving lever.

The present invention can also adopt following technical measures to realize: described pedestal and rotary table mating surface are that male and fomale(M﹠F) cooperates, and are provided with oil-way between the mating surface; Described rotary table has been provided with the key or the pin of anastomosis for the heat treated ductile cast iron material of process, described ratchet for through heat treated high-alloy steel material between described rotary table and the described ratchet; The axle that described machine bench supports is two or three, supports main machine frame above the axle; The lower end of described driving driving lever is connected with the oil cylinder piston bar; The lower end of described driving driving lever also is connected with oil cylinder or electric pushrod; The lower end of described driving driving lever is connected with connecting rod.

Advantage and good effect that the present invention has are: owing to having adopted transmission mechanism to be positioned at rotary table and being the drive mechanism of sealing, strengthened workbench the space, can select type of drive flexibly, reduced noise, reduce driving power, avoided the unsafe factor of rotary table outer rim click engaging structure; The main machine frame that utilizes three posts to support, than the frame stability that twin columns support, the framework manufacturing process that supports than four posts is simple many.

Description of drawings

Fig. 1 is a lower-drive type revolving working-table intermittent mechanism constructed profile of the present invention;

Fig. 2 is a front view shown in Figure 1;

Fig. 3 to Fig. 6 is four kinds of duties that transmission mechanism driving pawl shown in Figure 1 rotates.

Label among the figure is respectively: 1. main machine frame; 2. rotary table; 3. spring; 4. locate ratchet I; 5. ratchet; 6. key; 7. overlap I; 8. overlap II; 9. driving ratchet; 10. drive the ratchet holder; 11. pedestal; 12. machine bench; 13. location ratchet holder I; 14. cover III; 15, axle; 16, cam body rocking bar; 17, deflection driven driving lever; 18, location ratchet II; 19, location ratchet holder II; 20, oil cylinder.

The specific embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, enumerate following examples now, and conjunction with figs. is described in detail as follows:

With reference to accompanying drawing 1-6, with the rotary table 2 and high-alloy steel material of ductile cast iron material, the processing of extraordinary heat treating regime, the ratchet 5 of extraordinary heat treating regime processing is a rigid body by key 6 with cover I7 connection; Ratchet 5 is provided with the indexing trough that control drives rotating mechanism and two groups of detent mechanism actions, it is upper and lower that driving ratchet holder 10 and deflection driven driving lever 17 are connected in cam body rocking bar 16 respectively, they can rotate around axle 15, location ratchet holder I13 and location ratchet holder II19 are fixed on the pedestal 11, pedestal 11 is fixed on the machine bench 12, they are motionless with respect to axle 15 and main machine frame 1, and pedestal 11 and machine bench 12 have deep-slotted chip breaker between the tow-away zone of deflection driven driving lever 17; Assemble out a cover rotary table 2 drive units by driving ratchet holder 10, driving ratchet 9 and spring 3; Location ratchet holder I13, location ratchet I4 and spring 3 assemble out a cover rotary table 2 positioners; Location ratchet holder II19, location ratchet II18 and spring 3 assemble out another set of rotary table 2 positioners; To overlap the II8 cam body rocking bar 16 of packing into; With the machine bench 12 that is fixed on the body, the cover III14 that packs into installs three fulcrums 15, lower end packing ring, nut check; The rigid body that with rotary table 2 drive units that assemble, two cover rotary table 2 positioners and rotary table 2 and ratchet 5 the is pedestal 11 of packing in proper order by key 6 and cover I7 connection; With cushion cover, pad and locking nut the main machine frame 1 of three fulcrums upper end is installed, is promptly finished this mechanism installation process.

The motion process of rotary table is: Fig. 3 is the rotating mechanism home position; Fig. 4 is an oil cylinder 20 when driving the clockwise deflection of deflection driven driving lever 17, will drive ratchet 9 and partly eject indexing trough, and location ratchet I4 stops ratchet 5 reverses in indexing trough, and deflection driven driving lever 17 drive cam body rocking bars 16 are rotated further; Fig. 5 meshes with ratchet 5 respectively with location ratchet I4 for driving ratchet 9, and location ratchet II18 deviates from; Fig. 6 is the 17 counterclockwise deflections of deflection driven driving lever, drive ratchet 9 and drive ratchet 5 rotations, location ratchet I4 marks indexing trough, location ratchet II18 streaks on deflection driven driving lever 17 cam outer rims, enter next indexing trough respectively until location ratchet I4 and location ratchet II18, arrive next original position, stop ratchet 5 to rotate, reach the effect of location.

The installation that can replace of described three ratchets; Can install devices such as auxiliary accurate detent mechanism or rotary encoder additional according to different design accuracy requirements.

Driving driving lever can be driven by pneudraulic piston rod driving, electric pushrod, also can be driven by other interlinked mechanisms such as connecting rods.

Other function that matches with this mechanism, as the press oil cylinder on main machine frame, press slide plate, travel switch, the frock clamp on rotary table, liftout attachment in the slew gear body or the like are mechanism's category of this patent.

Claims

1. lower-drive type revolving working-table intermittent mechanism, comprise machine bench that plural axle supports, coaxial and be positioned at pedestal and rotary table on the described machine bench successively with one of machine bench, it is characterized in that: below the described rotary table and be provided with the transmission mechanism of sealing between above the described pedestal; Described transmission mechanism comprises and the ratchet of rotary table coaxial rotation, one group of driving rotating mechanism and two groups of detent mechanisms that the drive ratchet intermittently rotates; Described ratchet is provided with the indexing trough that control drives rotating mechanism and two groups of detent mechanism actions; Described driving rotating mechanism and described two groups of detent mechanisms constitute by ratchet holder, ratchet and spring; Ratchet holder on the described driving rotating mechanism is fixed on above the cam body rocking bar; Ratchet holder on the described detent mechanism is fixed on the pedestal; Be fixed with the upper end that drives driving lever below the described cam body rocking bar; Described pedestal and machine bench are provided with deep-slotted chip breaker between the tow-away zone of deflection driven driving lever.

2. lower-drive type revolving working-table intermittent mechanism according to claim 1 is characterized in that: described pedestal and rotary table mating surface are that male and fomale(M﹠F) cooperates, and are provided with oil-way between the mating surface.

3. lower-drive type revolving working-table intermittent mechanism according to claim 1, it is characterized in that: described rotary table is the heat treated ductile cast iron material of process, described ratchet has been provided with the key or the pin of anastomosis for through heat treated high-alloy steel material between described rotary table and the described ratchet.

4. lower-drive type revolving working-table intermittent mechanism according to claim 1 is characterized in that: the axle that described machine bench supports is two or three, supports main machine frame above the axle.

5. lower-drive type revolving working-table intermittent mechanism according to claim 1 is characterized in that: the lower end of described driving driving lever is connected with the oil cylinder piston bar.

6. lower-drive type revolving working-table intermittent mechanism according to claim 1 is characterized in that: the lower end of described driving driving lever is connected with electric pushrod.

7. lower-drive type revolving working-table intermittent mechanism according to claim 1 is characterized in that: the lower end of described driving driving lever is connected with connecting rod.