Rotary-tray with indexing lock mechanism
Technical field
The invention belongs to the mechanical assembly technique field, be specifically related to the rotary-tray on the assembling line in engine, the gearbox production.
Background technology
In fields such as machinery assemblings, such as industries such as engine, speed changers, need to use a kind of rotatable tray in use, be used for the supporting and location workpiece, thereby carry out assembly manipulation.This rotatable tray in use is comprised of base plate and round tray, thereby has the supporting and location that supporting mechanism satisfies workpiece to be assembled on the round tray, connects with the end face bearing between base plate and the round tray, and round tray can rotate by 360 degree on base plate.This rotary-tray can be mobile at the assembling transmission line, also can be the fixed position.In assembling process, the workpiece that often needs to be placed on the round tray rotates (generally being four angles) by different angles, thus the different parts of workpiece convenient for assembly.But the round tray of place work piece can not arbitrarily rotate during assembling, otherwise be unfavorable for assembling, just need a kind of rotary-tray with indexing lock mechanism for this reason, round tray can automatically by locking, can rotate again round tray and forward workpiece to angle and locking that another needs after the release of operation indexing lock mechanism when workpiece rotating arrives desired location.
Summary of the invention
For the round tray that solves rotatable tray in use can according to angle orientation locking and the release problem set, the invention provides a kind of rotary-tray with indexing lock mechanism when rotated.
Concrete structural design scheme is such:
Rotary-tray with indexing lock mechanism comprises round tray and base plate, and the center of circle of described round tray is located on the base plate by axle and bearing, and can 360 degree rotations.Be laid with plural locating slot on the circumference of described round tray;
The base plate in the described round tray outside is provided with indexing lock mechanism, and described indexing lock mechanism comprises slide, push rod, bearing and handle;
Described slide is tubulose, and an end is stepped hole, and the other end is through hole, and slide is fixed on the base plate corresponding with the circumference of round tray; Described push rod is step bars, one section is enlarged diameter section, another section is reduced diameter section, and be positioned at slide, the end of the reduced diameter section of push rod extends outside the stepped hole of slide, is arranged with compression spring on the reduced diameter section of push rod, and the end of described enlarged diameter section is provided with groove, be provided with roller by bearing pin, the locating slot corresponding matching on described roller and the round tray circumference in the groove;
Described bearing is upright tubulose, and the pore of bearing is stepped hole, and epimere is enlarged diameter section, and hypomere is reduced diameter section, and bearing hypomere one side corresponding with push rod is provided with jogger hole; Described handle is that step is shaft-like, and a side lever of the reduced diameter section of handle offers axial push rod groove with it, and the handle of push rod groove bottom is provided with radially square cotter hole, and described square cotter is provided with square cotter in the hole, is arranged with spring on the handle; Handle is positioned at the pore of bearing, and the lower end of described spring is positioned at the step place of the stepped hole of bearing, and the push rod groove on the handle is corresponding with the jogger hole on the bearing; The end of the reduced diameter section of described push rod cooperates with the jogger hole on the bearing is movable.
The end of the reduced diameter section of described push rod is the nose bar shape, and described end face is the inclined-plane.
A side of described square cotter is parallel with the inclined-plane of push rod end.
Be laid with four locating slots on the circumference of described round tray, described locating slot is deep-slotted chip breaker.
Useful technique effect of the present invention: in using the industries such as machinery assembling of rotatable tray in use, can easily be with the round tray of place work piece according to the angle orientation locking of setting and can easily release; Prevent that workpiece from arbitrarily rotating on round tray, thereby avoided workpiece arbitrarily to rotate the interference that assembling work is caused; The needed work angle of positioning workpieces fast and accurately.
Description of drawings
Fig. 1 is scheme of installation of the present invention.
Fig. 2 is that Fig. 1 is at the A-A of lockup state partial sectional view.
Fig. 3 is that Fig. 1 is at the A-A of released state partial sectional view.
Fig. 4 is that Fig. 1 is at the I of lockup state partial enlarged view.
Fig. 5 is push rod structure schematic diagram among Fig. 2.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is slide carriage structure schematic diagram among Fig. 2.
Fig. 8 is the B-B cutaway view of Fig. 7.
Fig. 9 is handle arrangement schematic diagram among Fig. 2.
Figure 10 is the top view of Fig. 9.
Figure 11 is the C-C cutaway view of Fig. 9.
Figure 12 is seat structure schematic diagram among Fig. 2.
Figure 13 is the D-D cutaway view of Figure 12.
Among the above-mentioned figure: the 1-indexing lock mechanism; The 2-base plate; The 3-round tray; The 4-roller; The 5-axle sleeve; The 6-bearing pin; The 7-push rod; The 8-compression spring; The 9-slide; The 10-straight pin; The 11-bolt; The 12-handle; The 13-spring; The 14-bearing; The 15-square cotter; The 16-cover plate; The 17-screw.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment the present invention is further described.
Embodiment:
Referring to Fig. 1 and Fig. 4, the rotary-tray with indexing lock mechanism comprises round tray 3 and base plate 2, and the center of circle of round tray 3 is installed on the base plate 2 by axle and bearing, and can 360 degree rotations.Be laid with four locating slots on the circumference of round tray 3, locating slot is deep-slotted chip breaker.On the base plate 2 in round tray 3 outsides indexing lock mechanism 1 is installed.By Fig. 2 and Fig. 3 as seen, indexing lock mechanism 1 comprises slide 9, push rod 7, bearing 14 and handle 12.
Referring to Fig. 7 and Fig. 8, slide 9 is tubulose, and an end is stepped hole, and the other end is through hole, and slide 9 is fixed on the base plate corresponding with the circumference of round tray 32 with plural bolt 11 by straight pin 10.Referring to Fig. 5 and Fig. 6, push rod 7 is step bars, one section is enlarged diameter section, another section is reduced diameter section, and is positioned at slide 9, and the end of the reduced diameter section of push rod 7 extends outside the stepped hole of slide 9, be set with compression spring 8 on the reduced diameter section of push rod 7, the end of enlarged diameter section is provided with groove, by bearing pin 6 and axle sleeve 5 roller 4 is installed in the groove, the locating slot corresponding matching on roller 4 and round tray 3 circumference.
Referring to Figure 12 and Figure 13, bearing 14 is upright tubulose, and the pore of bearing is stepped hole, epimere is enlarged diameter section, hypomere is reduced diameter section, and bearing 14 hypomeres one side corresponding with push rod 7 offers jogger hole, and the bottom of bearing 14 is fixed on the base plate by cover plate 16 and sunk screw 17.Referring to Fig. 9, Figure 10 and Figure 11, handle 12 is that step is shaft-like, and a side lever of the reduced diameter section of handle 12 offers axial push rod groove with it, offers radially square cotter hole on the handle of push rod groove bottom, square cotter 15 is installed in the square cotter hole, is set with spring 13 on the handle 12; Handle 12 is positioned at the pore of bearing 14, and the lower end of spring 13 is positioned at the step place of the pore of bearing 14, and the push rod groove on the handle 12 is corresponding with the jogger hole on the bearing 14.The end of the reduced diameter section of push rod 7 cooperates with the jogger hole on the bearing 14 is movable.
Referring to Fig. 6, the end of the reduced diameter section of push rod 7 is the nose bar shape, and end face is the inclined-plane.A parallel sided of the inclined-plane of push rod 7 ends and square cotter 15 is seen Fig. 2.
During use: workpiece is placed on round tray 3, the round tray 3 of place work piece can not arbitrarily rotate when implementing assembling, indexing lock device 1 is in lockup state (being Fig. 2 and Fig. 4 state) at this moment, on the one hand the be under pressure pressure-acting of 8 pairs of push rods 7 of spring of the roller 4 on the indexing lock device is pushed in the locating slot on round tray 3 circumference, push rod 7 is subject to the restriction of square cotter 15 on the other hand, thereby cause push rod 7 and the roller 4 can't be in slide 9 interior movements, locating slot on the round tray 3 is blocked by roller 4 at this moment, so that round tray 3 can't be rotated by locking.When needs when assembling is implemented at another position on workpiece, need to rotate round tray 3, at this moment, press lower handle 12, be released state, see Fig. 3, this moment, square cotter 15 moved on to the below of push rod 7 ends, so that the restriction cancellation of 15 pairs of push rods 7 of square cotter, rotate round tray 3 with certain power, the locating slot pair roller on the round tray 3 produces outside thrust, thereby makes roller 4 overcome the pressure-acting of 8 pairs of push rods 7 of compression spring and outwards mobile, at this moment roller 4 rolls in round tray 3 outer rings and begins to break away from locating slot on the round tray 3, and round tray 3 is free to rotate; When roller 4 breaks away from locating slot fully and is positioned at the outer ring of round tray 3, push rod 7 limits square cotter 15 so that handle 12 can't rebound, until the next locating slot of round tray 3 outer rings rotates to roller 4 positions, thereby roller 4 springs into the automatic locking of realizing another position in next locating slot under compression spring 8 effects.