CN100434944C - Loading sliding bottom weight-reducing synchronous moving device of grating ruling engine - Google Patents

Abstract

The invention relates to a weight-reduction synchronous moving mechanism of carrier sliding seat of grating ruling engine, belonging to the optical precision ruling technology field. The mechanism comprises basic seat, loading support, guiding rail, moving sliding vehicle, elastic chain with adjustable tension, cable, carrier sliding seat, lead screw pair, worm gear pair, indexing box and gearbox. The loading support is set on the basic seat and two guiding rails are set above the loading support. The moving sliding vehicle can move on guiding rails and two straight elastic chains with adjustable tension can be set at two sides of moving sliding vehicle respectively. Lower ends of elastic chains are fixed with the carrier sliding seat to play the role of weight reduction. The loading rail is fixed on the basic seat and the carrier sliding seat can move on the loading rail. When ruling the displacement of moving sliding vehicle is accomplished by the indexing box, gearbox and cable. The displacement of carrier sliding seat is accomplished by the lead screw pair, the worm gear pair and the indexing box. They are in phase.

Description

A kind of loading slide loss of weight synchronous moving mechanism of optical grating graduating machine

One, technical field

The invention belongs to the loading slide loss of weight synchronous moving mechanism of a kind of optical grating graduating machine that relates in the optical precision delineation technical field.

Two, background technology

Continuous development and social progress along with science and technology, the small size ruling grating can not satisfy current needs, along with technos is increasing to the large-area grating demand, the rose engine that can delineate the small size grating can not meet the demands, can delineate that large-area grating ruling is confidential very high input and develop one again, so technical difficulty is big, long insider of cycle just wants to transform on the original rose engine that can delineate the small size grating.When optical grating graduating machine is normally delineated, be that the grating blank is fixed on the loading slide of optical grating graduating machine, because small size ruling grating blank is in light weight, the suffered pressure of loading slide is little, the loading slide can move according to certain grating constant, and the weight of large tracts of land ruling grating blank is greatly about about 10～15Kg, the suffered pressure of loading slide increases, strengthened the frictional force between loading slide and the load-bearing guide rail, make the loading slide not carry out accurately moving according to certain grating constant, influence the quality of optical grating diffraction wave front, caused the grating distinguishing ability to reduce.So must take measures the loading slide is carried out loss of weight and reduce frictional force between loading slide and the load-bearing guide rail, just can make the rose engine of delineation small size grating possess the ability of delineation large-area grating.

The prior art the most approaching with the present invention is the loading slide carriage mechanism of the optical grating graduating machine of Changchun Institute of Optics, Fine Mechanics and Physics, CAS's development, as shown in Figure 1; Comprise: pedestal 1, load-bearing guide rail 2, loading slide 3, grating blank 4, sliding contact 5, bearing seat 6, screw 7, screw mandrel 8, worm gear 9, worm screw 10, calibration cabinet 11, belt pulley 12, travelling belt 13, worm screw seat 14.

Load-bearing guide rail 2 is fixed on the pedestal 1, and loading slide 3 contacts with load-bearing guide rail 2 by sliding contact 5 and can slide, and grating blank 4 places the central authorities of loading slide 3, and screw 7 is connected with loading slide 3.Being contained between screw mandrel 8 on the bearing seat 6 and the screw 7 is threaded engagement, and the right-hand member of screw mandrel 8 is connected worm gear 9 is housed, and worm gear seat 14 is connected with pedestal 1.Being contained between worm screw 10 on the worm gear seat 14 and the worm gear 9 is the tooth engagement, is connected with travelling belt 13 between the belt pulley 12 on worm screw 10 and the calibration cabinet 11.

The loading slide carriage mechanism of this optical grating graduating machine only adapts to delineation small size grating, can not delineate large-area grating.

Three, summary of the invention

In order to overcome the defective that prior art exists, the objective of the invention is to satisfy the demand of delineation large-area grating, a kind of loading slide of ad hoc meter loss of weight synchronous moving mechanism.

The technical problem to be solved in the present invention is: the loading slide loss of weight synchronous moving mechanism that a kind of optical grating graduating machine is provided.The technical scheme of technical solution problem comprises as shown in Figure 2: pedestal 15, load-bearing guide rail 16, loading slide 17, grating blank 18, sliding contact 19, bearing seat 20, screw 21, screw mandrel 22, worm screw seat 23, worm screw 24, first travelling belt 25, first belt pulley 26, second travelling belt 27, wheel box 28, second belt pulley 29, calibration cabinet 30, worm gear 31, around rope 32, pulley 33, pole 34, guiding rail 35, movable block 36, adjustable drag spring chain 37, leading block 38, carrying support 39.

Carrying support 39 is installed on the pedestal 15 and with pedestal 15 and is connected, over top at carrying support 39 is equipped with two guiding rails 35, movable block 36 is housed on the guiding rail 35, movable block 36 can move on guiding rail 35 by two leading blocks 38 that its two side lower part respectively is equipped with, be connected at each vertical of the both sides of movable block 36 two adjustable drag spring chains 37 are housed, the lower end of adjustable drag spring chain 37 and loading slide 17 are connected, to loading slide 17 generations pulling force vertically upward, realize loss of weight to loading slide 17, to reduce the frictional force between loading slide 17 and the load-bearing guide rail 16; One end of pole 34 is connected with carrying support 39, the other end is equipped with pulley 33, an end and movable block 36 around rope 32 are connected, walk around pulley 33, second belt pulley 29 on 28 of the other end and the wheel boxes is connected, second belt pulley 29 is connected with the axle of wheel box 28, and first belt pulley 26 is connected with the axle of calibration cabinet 30, is connected, is connected by first travelling belt 25 between first belt pulley 26 and the worm screw 24 by second travelling belt 27 between first belt pulley 26 and second belt pulley 29; One end and the pedestal 15 of worm screw seat 23 is connected, the other end is equipped with worm screw 24; Load-bearing guide rail 16 is fixed on the pedestal 15, the central authorities that loading slide 17 contacts with load-bearing guide rail 16 also by sliding contact 19 and can slide thereon, grating blank 18 places loading slide 17, screw 21 passes screw 21 with the screw mandrel 22 that loading slide 17 is connected, is contained on the bearing seat 20, between screw mandrel 22 and the screw 21 is threaded engagement, between screw mandrel 22 and the bearing seat 20 is to cooperate by bearing, the right-hand member of screw mandrel 22 is connected worm gear 31 is housed, and is the tooth engagement between worm gear 31 and the worm screw 24.When normal delineation, the displacement of movable block 36 and displacement are synchronous, consistent with the displacement and the displacement of loading slide 17, the displacement of the movable block 36 of loss of weight synchronous moving mechanism is by calibration cabinet 30, wheel box 28 and finishes under the effect of rope 32, and the displacement of loading slide 17 is to finish under the effect of tooth engagement, travelling belt 25, calibration cabinet 30 of the screw pair, worm gear 31 and the worm screw 24 that constitute by screw 21, screw mandrel 22.Just first belt pulley 26 when calibration cabinet 30 carries out calibration by certain grating constant, on the calibration cabinet 30 rotates and drives worm screw 24 respectively and wheel box 28 rotates by first travelling belt 25 and second travelling belt 27; Worm screw 24 drives worm gear 31 and screw mandrel 22 rotates, and makes the screw 21 on the screw mandrel 22 drive 17 displacements of loading slide; When calibration cabinet 30 drives worm screws 24 and rotates, drive second belt pulley 29 by second travelling belt 27 and rotate, and then the axle that drives wheel box 28 again rotates, drives simultaneously around 36 displacements of rope 32 pulling movable blocks.Loading slide 17 has reached the effect of loss of weight by being contained in adjustable drag spring chain 37 on the movable block 36.

Good effect of the present invention: the effect of loss of weight synchronous moving mechanism can realize to large-area grating delineation, simultaneously greatly reduce the delineation large-area grating cost, the loading slide in the delineation process, be not subjected to other external force influence, guaranteed the face shape quality of displacement accuracy and ruling grating.

Four, description of drawings

Fig. 1 is the structural representation of prior art

Fig. 2 is a structural representation of the present invention

Five, embodiment

The present invention implements by structure shown in Figure 2, pedestal 15 in Fig. 2, load-bearing guide rail 16, loading slide 17, sliding contact 19, bearing seat 20, screw 21, screw mandrel 22, worm screw seat 23, worm screw 24, first travelling belt 25, calibration cabinet 30, worm gear 31 these parts all exist in prior art, prior art does not have any change, they all also keep original state, in the loss of weight synchronous moving mechanism that adds, the material of carrying support 39 adopts the 30# steel, the framed structure size designs according to the size of pedestal 15, the material of two guiding rails 35 adopts brass, be installed in parallel in above the top of carrying support 39, the shape of guiding rail 35 and roller 38 couplings, the material of roller 38 adopts brass, the material of movable block 36 adopts the 30# steel, the size of size and loading slide 17 is for referencial use to be designed, the material of adjustable drag spring chain 37 adopts spring steel, dimensions and elastic force, according to being decided by the weight of delineation large-area grating blank 18, the pulling force spring chain 37 that the weight interchangeable of different grating blanks 18 adapts, adopt finer wire around rope 32 materials, wheel box 28 adopts outsourcing piece, first belt pulley 26 and second belt pulley, 29 materials adopt cast iron, first travelling belt 25 and second travelling belt 27 adopt O type balata belt, the material of pulley 33 and pole 34 adopts the 30# steel.

Claims (1)

1, a kind of loading slide loss of weight synchronous moving mechanism of optical grating graduating machine, comprise pedestal, load-bearing guide rail, loading slide, grating blank, sliding contact, bearing seat, screw, screw mandrel, worm gear, worm screw, worm screw seat, calibration cabinet, belt pulley, travelling belt, it is characterized in that also comprising second travelling belt (27), wheel box (28), second belt pulley (29), around rope (32), pulley (33), pole (34), guiding rail (35), movable block (36), adjustable drag spring chain (37), leading block (38), carrying support (39);

Carrying support (39) is installed in pedestal (15) and upward and with pedestal (15) is connected, over top at carrying support (39) is equipped with two guiding rails (35), movable block (36) is housed on the guiding rail (35), movable block (36) is connected by each vertical of its both sides two adjustable drag spring chains (37) is housed, the lower end of adjustable drag spring chain (37) and loading slide (17) are connected, one end of pole (34) is connected with carrying support (39), the other end is equipped with pulley (33), an end and movable block (36) around rope (32) are connected, walk around pulley (33), the other end is connected with second belt pulley (29) on wheel box (28) axle, second belt pulley (29) is connected with the axle of wheel box (28), first belt pulley (26) is connected with the axle of calibration cabinet (30), be connected by second travelling belt (27) between first belt pulley (26) and second belt pulley (29), be connected by first travelling belt (25) between first belt pulley (26) and the worm screw (24), one end of worm screw seat (23) and pedestal (15) are connected, the other end is equipped with worm screw (24), load-bearing guide rail (16) is fixed on the pedestal (15), loading slide (17) contacts with load-bearing guide rail (16) by sliding contact (19) and can slide thereon, grating blank (18) places the central authorities of loading slide (17), screw (21) is connected with loading slide (17), be contained in screw mandrel (22) on the bearing seat (20) pass screw (21) and with screw (21) threaded engagement, between screw mandrel (22) and the bearing seat (20) is that bearing cooperates, and the right-hand member of screw mandrel (22) is connected worm gear (31) is housed, it between worm gear (31) and the worm screw (24) the tooth engagement.

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