CN206185606U - Dividing plate - Google Patents

Abstract

The utility model discloses a dividing plate, which comprises a mounting bas, be provided with the graduation carousel on the mount pad, be provided with the rotor with the synchronous rotation of graduation carousel on the mount pad, the conflict piece that is provided with movable chamber in the rotor and slides from top to bottom at the activity intracavity, the activity intracavity is provided with and distributes on activity intracavity wall and mutual crisscross last skewed tooth area and the declivity cingulum that corresponds around arranging, mount pad be provided with and a contradict fixed connection's flexible driving piece, the drive of flexible driving piece contradict upwards with last skewed tooth area counterbalance in order to drive the rotor rotation, the drive of flexible driving piece contradict downwards with the counterbalance of declivity cingulum in order to drive rotor syntropy rotation once more, the graduation carousel can rotate by twice graduation, the graduation pivoted angle that reaches enlarges the one time, do not need the manual work predetermine alright accomplish the bigger graduation of angle and rotate, relatively practicality, labour saving and time saving.

Description

Index dial

Technical field

The utility model is related to a kind of indexing means, more particularly to a kind of index dial.

Background technology

Index dial is by piece-holder on chuck or two top, and to make the machine tool accessories of its rotation, indexing and positioning, It is used in automation equipment, during automation equipment is processed, the halving precision of index dial directly affects workpiece Motion and stationary accuracy, therefore, the required precision for index dial is higher, in the market it is existing indexing disc-type very Many, most index dial is required for manually adjusting precision in use, has so had a strong impact on efficiency and the life of production The quality of product.

In order to solve the above problems, in number of patent application is for a Chinese patent document of " 201420635023.5 ", Describe a kind of index table, including support frame and the indexing rotary table that can be rotated to it installed in support frame one end, indexing Rotating disk is driven by the drive device of index on support frame, sets some around indexing turn by the boss of indexing rotary table The circumferentially distributed locating latch tapered sleeve in disc spins center, while setting through hole on support frame, and may move positioning in the through hole Oblique cone post is installed, during work, drives positioning batter post to exit locating latch tapered sleeve by positioning drive unit, then drive device of index Start and drive indexing rotary table to rotate, the drive device of index stopping action when indexing rotary table turns to predetermined angular is now fixed Position oblique cone post is corresponding with another locating latch tapered sleeve on indexing rotary table, and then positioning drive unit drives the post insertion of positioning oblique cone In the locating latch tapered sleeve, so as to complete indexing positioning, without manual degree of regulation, production efficiency and the quality of production are high.

But, above-mentioned this index table is disadvantageous in that, drive device of index typically uses motor, motor Motor shaft is connected with indexing rotary table, and motor works at steady state, and the angle that its motor axle is rotated is certain, so that Drive indexing rotary table every time rotate angle be also certain, it is necessary to indexing rotary table rotation greater angle when, then will in advance to electricity Machine is preset, however every time it is default all can time and effort consuming, therefore, needing one kind badly and being not required to default drive device just can realize indexing The indexing means of the rotatable greater angle of rotating disk.

Utility model content

The purpose of this utility model is to provide a kind of index dial, and the indexing rotary table anglec of rotation is realized more by rotating twice Greatly, it is time saving and energy saving by being automatically obtained.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of index dial, including Mounting seat, is provided with indexing rotary table in the mounting seat, the rotation with indexing rotary table synchronous rotation is provided with the mounting seat Body, is provided with movable chamber and the collision piece slid up and down in movable chamber in the rotor, ring is provided with the movable chamber Around arranged distribution on movable cavity wall and it is interlaced it is corresponding on helical teeth band and oblique cingulum, the mounting seat be provided with The telescopic drive part that collision piece is fixedly connected, the telescopic drive part drives collision piece to be offseted with upper helical teeth band upwards with drive turn Kinetoplast rotation, the telescopic drive part drives collision piece to offset to drive rotor rotation in the same direction again downwards with oblique cingulum.

By using above-mentioned technical proposal, telescopic drive part drives collision piece to be moved up and down in movable chamber, and collision piece exists During moving up, collision piece is arrived with the helical teeth conflict on oblique cingulum, and as collision piece is ceaselessly moved up, Collision piece continues to be contradicted with the inclined-plane on upper helical teeth band and arrives, and being oriented to by inclined-plane makes rotor rotation clockwise, so as to drive point Degree rotating disk rotation clockwise, realize indexing rotary table first time rotate, collision piece during moving down, with oblique cingulum On inclined-plane contradict arrive, and by inclined-plane be oriented to effect drive rotor carry out rotation again so that indexing rotary table Rotation is carried out on the basis of again again, the indexing twice for realizing indexing rotary table is rotated, the angle that the indexing for reaching is rotated Expansion is twice, it is not necessary to which artificial presetting just can complete the bigger indexing rotation of angle, practical, by being automatically obtained, compare It is time saving and energy saving.

Further, the rotor includes the upper rotation section and lower rotation section that are detachably connected, the upper helical teeth band Around being distributed on upper rotation section, around being distributed on lower rotation section, the lower rotation section rotates the oblique cingulum with mounting seat Connection.

By using above-mentioned technical proposal, rotor is set using split, and it is divided into rotation section and lower rotation section, will be upper Helical teeth band and oblique cingulum split are arranged on rotation section and lower rotation section, convenient that upper helical teeth band and oblique cingulum are processed into Type, the processing work to workman is provided convenience, and helical teeth processing gets up more convenient.

Further, detent is offered on the upper rotation section, insertion positioning is provided with the lower rotation section recessed In groove and with the locating convex block of detent male-female engagement.

By using above-mentioned technical proposal, locating convex block and detent are male-female engagements, install rotation section and During lower rotation section, the location and installation of upper rotation section and lower rotation section is realized by the way of male-female engagement, make rotation section and under It is more accurate that rotation section couples together, and when around own axis, upper rotation section and lower rotation section produce whole rotor The active force of relative rotation is smaller, rotates rotor more stable.

Further, it is provided with the mounting seat and rotor and rotor is limited on rotor circumferencial direction reversely returns The elastic skewback mechanism for turning.

By using above-mentioned technical proposal, elastic skewback mechanism limits rotor on rotor circumferencial direction and reversely returns Turn, so that indexing rotary table after rotation is indexed every time, be not in revolution so that indexing rotates more accurate, stable.

Further, the guide pillar extended along rotor axis direction is provided with the movable chamber, the collision piece is being led Slid up and down on post.

Slid up and down on guide pillar by using above-mentioned technical proposal, collision piece, guide pillar has been moved up and down to collision piece To the effect being oriented to, make the movement of collision piece more stable, accurate.

Further, the indexing rotary table is detachably connected with rotor.

By using above-mentioned technical proposal, indexing rotary table is detachably connected with rotor, is given birth to according to automation equipment The demand of product, staff can disassemble indexing rotary table, then replace with the indexing rotary table of different-diameter, to adapt to production Demand so that for production facility is provided, practical value is high.

Further, the rotor lateral wall depression be formed with annular slot, be provided with the indexing rotary table with The snap ring that annular slot is engaged by clamping.

By using above-mentioned technical proposal, snap ring is engaged by clamping with annular slot, and that realizes rotor and indexing rotary table can Dismounting connection, causes that indexing rotary table dismounts more convenient, laborsaving by the way of clamping.

Further, keeper is provided with the rotor, is provided with the indexing rotary table for keeper insertion Location hole.

By using above-mentioned technical proposal, keeper is inserted into location hole, fixed so as to realize rotor and indexing rotary table Position coordinates, and is installed to indexing rotary table more accurate on rotor, meanwhile, under the limitation of keeper and location hole, it is to avoid point Produced relative rotation between degree rotating disk and rotor, improve the synchronism that indexing rotary table and rotor are rotated.

Further, opened up on the mounting seat and rotor in oriented movable chamber and injected on upper helical teeth band and oblique cingulum The oil inlet passage of lubricating oil.

By using above-mentioned technical proposal, under the idle state of telescopic drive part, by oil inlet passage to movable chamber Interior injection lubricating oil, lubricating oil is flowed on helical teeth band and oblique cingulum, and lubricating oil is to contradicting block in upper helical teeth band and lower helical teeth Take conflict movement and play a part of lubrication, so as to mitigate the abrasion for contradicting block, upper helical teeth band and oblique cingulum surface, enhancing is supported Contact block contradicts the smoothness of sliding.

Further, the oil discharge passage connected with movable chamber is offered on the outer wall of the rotor, it is described fuel-displaced logical Road extends spirally to be formed on circular rotor axis direction.

By using above-mentioned technical proposal, the lubricating oil in movable chamber is flowed out by oil discharge passage from movable chamber, fuel-displaced In the shape of a spiral, lubricating oil can be in the flowing from the top down of oil discharge passage inner-spiral type, so as to lubricate mounting seat and rotor for passage Between, make rotor in mounting seat rotation more smoothly, spiral helicine setting so that lubricating oil more comprehensively, it is uniform Flowed between mounting seat and rotor, the lubricant effect played to the lateral wall of rotor is more uniform.

In sum, the utility model has the advantages that：1st, indexing rotary table can twice index rotation, and what is reached divides The angle expansion that degree is rotated is twice, it is not necessary to which artificial presetting just can complete the bigger indexing rotation of angle, practical, time saving province Power；2nd, indexing rotary table and rotor are detachably connected, and according to the demand that automation equipment is produced, staff will can index Rotating disk is disassembled, and then replaces with the indexing rotary table of different-diameter, to adapt to the demand of production, so that for production is provided just Profit, practical value is high；3rd, using the setting of oil discharge passage and oil inlet passage so that the band of helical teeth up and down and rotation in rotor External wall is lubricated so that whole index dial work together it is more smooth, meanwhile, decrease what is be subject to when index dial works Abrasion, strengthens its service life；4th, contradicted by inclined-plane and be oriented to the rotation for realizing rotor, inclined-plane amplifies the moment of torsion of rotation, Reach at a high speed, gratuitously；5th, simple structure, easy to operate low cost；Indexing rotary table velocity of rotation is fast when the 6th, working.

Brief description of the drawings

Fig. 1 is the exploded perspective view of embodiment 1, the overall structure for embodying index dial；

Fig. 2 is the midship section schematic diagram one of embodiment 1, the installation site relation for embodying elastic skewback mechanism；

Fig. 3 is the generalized section two of embodiment 1, for embodying the structure after index dial assembling；

Fig. 4 is the exploded perspective view of rotor in embodiment 1, for embodying upper helical teeth band；

Fig. 5 is the structural representation of indexing rotary table in embodiment 1, for embodying the location hole on index dial；

Fig. 6 is the generalized section of embodiment 2, and relation is connected and fixed for embody upper rotation section and lower rotation section；

Fig. 7 is A portions enlarged diagram in Fig. 2, for embodying elastic skewback mechanism.

In figure, 1, indexing rotary table；2nd, rotor；201st, upper rotation section；202nd, lower rotation section；3rd, mounting seat；4th, mounting groove； 5th, telescopic drive part；6th, guide pillar；7th, detent；8th, pin-and-hole；9th, keeper；10th, bearing pin；11st, annular slot；12nd, convex Block；13rd, oil discharge passage；14th, snap ring；15th, oil inlet passage；16th, collision piece；1601st, block is contradicted；1602nd, disk is contradicted；17th, it is oblique Cingulum；18th, upper helical teeth band；19th, location hole；20th, spring steel ball；21st, movable chamber；22nd, elastic skewback mechanism；2201st, spring； 2202nd, tilted block；2203rd, surface groove；23rd, cell body；24th, rotary shaft.

Specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

This specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected by Patent Law in right of the present utility model.

Embodiment 1：A kind of index dial, as shown in figures 1 and 3, including mounting seat 3, the upper end of mounting seat 3 is recessed downwards Mounting groove 4 is formed with, installs in the mounting groove 4 and be placed with rotor 2, rotor 2 is shaped as cylinder, in rotor 2 Upper end is removably connected with the indexing rotary table 1 of disc-shape, and rotor 2 can drive indexing rotary table 1 along the rotation on own axes Rotation synchronously is carried out, the movable chamber 21 extended along the axis direction of rotor 2 is formed with rotor 2, in movable chamber 21 Collision piece 16 is provided with, in the present embodiment, collision piece 16 includes circular conflict disk 1602 and is shaped in conflict disk Conflict block 1601 on 1602, contradicts block 1601 and protrudes from the round ring-side wall for contradicting disk 1602；In addition, being set in movable chamber 21 There are upper helical teeth band 18 and oblique cingulum 17, upper helical teeth includes multiple upper helical teeth for surrounding and being arranged on the inwall of movable chamber 21 with 18, Oblique cingulum 17 includes multiple lower helical teeth for surrounding and being arranged on the inwall of movable chamber 21, and upper helical teeth band 18 is located at the inwall of movable chamber 21 Top half, oblique cingulum 17 be located at the inwall of movable chamber 21 the latter half, and upper helical teeth band 18 and oblique cingulum 17 it is mutual It is staggeredly corresponding, upper helical teeth with 18 vertical sectional shape be right angled triangle, and upper helical teeth band 18 lower end width be less than it is oblique The upper end width of cingulum 17, equally, upper helical teeth is right angled triangle with 18 vertical sectional shape, and the upper end of oblique cingulum 17 is wide Degree leaves certain lower section gap less than the lower end width of oblique cingulum 17 between the lower end of two neighboring oblique cingulum 17, under Square gap is stretched into for contradicting block 1601, is left between certain top gap, top between two neighboring upper upper end of the helical teeth with 18 Gap also is available for conflict block 1601 and stretches into；When conflict disk 1602 is moved straight up in movable chamber 21, supporting on disk 1602 is contradicted Contact block 1601 is contradicted with upper helical teeth with 18 inclined-plane, is continued to move up with disk 1602 is contradicted, and contradicts block 1601 and upper helical teeth Contradicted with the inclined-plane on 18, under the inclined inclined-plane guide effect, contradict block 1601 and move up to promote the up time of rotor 2 Pin carries out rotation, so as to drive the certain angle of the rotation clockwise of indexing rotary table 1, realizes that indexing is rotated；Disk 1602 is contradicted in work When being moved straight down in dynamic chamber 21, the conflict block 1601 contradicted on disk 1602 is exited downwards between two upper helical teeth bands 18, And move down, enter between two oblique cingulums 17, and contradicted with the inclined-plane on oblique cingulum 17, with conflict block 1601 constantly move down on inclined-plane, make conflict block 1601 promote rotor 2 on the basis of a preceding rotation, enter again Row rotation clockwise, so as to realize that the angle that indexing is rotated becomes big；

The telescopic drive part 5 being fixedly connected with collision piece 16, in the present embodiment, telescopic drive are provided with mounting seat 3 Part 5 is telescopic drive cylinder, and telescopic drive cylinder is arranged on the lower surface of mounting seat 3, and its piston rod penetrates activity straight up In chamber 21 and upper end is fixedly connected with the lower surface for contradicting disk 1602, during telescopic drive cylinder operation, drives and contradicts disk 1602 Slid up and down in movable chamber 21, realize that contradict block 1601 is freely lifted in movable chamber 21 automatically, in telescopic drive cylinder Under driving, contradict block 1601 and move up with upper helical teeth with the conflict of 18 inclined-plane, contradict block 1601 and move down and oblique cingulum 17 inclined-plane is contradicted；

The guide pillar 6 extended along the axis direction of rotor 2 is provided with movable chamber 21, the two ends of guide pillar 6 are embedded in movable chamber On 21 upper and lower end face, contradict and offered on disk 1602 vertically through the pilot hole for contradicting the upper and lower end face of disk 1602, contradict disk 1602 are enclosed within guide pillar 6 by pilot hole, are contradicted disk 1602 and are slid up and down under the guide effect of lead column.

As shown in Figure 3 and Figure 4, rotor 2 includes the upper rotation section 201 and lower rotation section 202 that are detachably connected, upper rotation Portion 201 is shaped as hollow cylinder, and the shape of lower rotation section 202 is also hollow cylinder, in the present embodiment, is installed Groove 4 is for circle and is coated in the circumferential wall of lower rotation section 202, and upper helical teeth is with 18 around the inner circle for being distributed in upper rotation section 201 On the week side of boss wall, oblique cingulum 17 includes multiple around the lower helical teeth being distributed on the inner circumferential side wall of lower rotation section 202, conflict block 1601 move down in plunger shaft, are contradicted with the inclined-plane on oblique cingulum 17 by contradicting block 1601, lower rotation section 202 is existed Rotation in mounting groove 4, realizes that lower rotation section 202 rotates with mounting seat 3 and is connected；

The lower surface of upper rotation section 201 offers the detent 7 of the formation that is recessed upwards along the axis of rotor 2, lower rotation The locating convex block 12 raised up from the upper surface of lower rotation section 202 is provided with portion 202, locating convex block 12 can be plugged into positioning In groove 7 and with the male-female engagement of detent 7, by the way of male-female engagement, make rotation section 201 and lower rotation section 202 real Existing location fit；Bearing pin 10 is provided with upper rotation section 201, be provided with lower rotation section 202 from the upper table of lower rotation section 202 towards It is lower to extend the pin-and-hole 8 for being formed, bearing pin 10 straight down through being inserted into pin-and-hole 8 behind upper rotation section 201, bearing pin 10 and pin-and-hole 8 Interference fit, realizes being detachably connected between upper rotation section 201 and lower rotation section 202 by way of interference fit.

As shown in Figure 1 and Figure 5, indexing rotary table 1 is detachably connected with rotor 2, on the outer circumferential sides wall of upper rotation section 201 Depression is formed with along the circular annular slot 11 of the axis direction of rotor 2, and depression is formed with circle to the lower surface of indexing rotary table 1 upwards Shape groove, by the circular trough by the upper end of the location and installation of indexing rotary table 1 to upper rotation section 201, the circumference inner ring of circular trough surround Snap ring 14 is formed with, snap ring 14 is made up of elastic metallic material, snap ring 14 is to be engaged by clamping with annular slot 11, by both Clamping engagement, realize being detachably connected for indexing rotary table 1 and upper rotation section 201；The upper surface of upper rotation section 201 is fixedly connected There is keeper 9 straight up, in the present embodiment, keeper 9 is embedded in the locating dowel on rotation section 201 for fixation, dividing The lower surface for spending rotating disk 1 offers the location hole 19 for extending straight up, is inserted into location hole 19 by locating dowel, in realization Rotation section 201 and the location and installation of indexing rotary table 1.

As shown in Figure 1, Figure 2 and Figure 7, it is provided with the limitation turn on the circumferencial direction of rotor 2 on mounting seat 3 and rotor 2 The elastic skewback mechanism 22 of the reversed turning of kinetoplast 2, in the present embodiment, elastic skewback mechanism 22 includes tilted block 2202, spring 2201 and surface groove 2203, it is formed with the madial wall depression of mounting groove 4 and place spring 2201 and tilted block 2202 for installing Cell body 23, it is shown in fig. 2, inwall one end of cell body 23 is provided with rotary shaft 24, the lower end of tilted block 2202 is by rotating Axle 24 is rotated with the inwall of cell body 23 and is connected, and one end of spring 2201 is fixedly connected with cell body 23 towards the side inwall of rotation section, The other end is fixedly connected with the side of the upper end of tilted block 2202, spring 2201 in the raw under, tilted block 2202 it is upper End inclines the inwall for protruding from mounting groove 4, and surface groove 2203 is opened on the outer circumferential sides wall of rotation section 201, and inclined-plane Groove 2203 is gradually rotated up the centroclinal of portion 201 clockwise towards the madial wall of the inwall of mounting groove 4, is rotating When body 2 is not rotated, tilted block 2202 is extend into surface groove 2203 in the case where the spring 2201 of spring 2201 is acted on, and limitation is rotated The turning anticlockwise of body 2, when rotor 2 is rotated clockwise, the inclined-plane of surface groove 2203 is moved clockwise, so that suitable Clockwise promotes tilted block 2202 to be rotated to cell body 23 around rotary shaft 24, and in this process, spring 2201 is gradually pressed Contracting, so that rotor 2 is able to normal rotation, after certain angle is turned to, tilted block 2202 and next surface groove 2203 is relative, and now, in the presence of the elastic force of spring 2201, its upper end extend into surface groove 2203 tilted block 2202, on The end at end offsets with the cell wall of the upper end of surface groove 2203, so as to limit the turning anticlockwise of rotation section 201 so that indexing rotary table 1 completes more accurate, stabilization after indexing every time.

As shown in figures 1 and 3,18 and lower helical teeth of upper helical teeth band in oriented movable chamber 21 are set on mounting seat 3 and rotor 2 Oil inlet passage 15 with lubricating oil is injected on 17, the oil inlet of oil inlet passage 15 is located at the lower surface of mounting seat 3, the oil inlet passage 15 penetrate on the circumferential side wall of lower rotation section 202 and upper rotation section 201 successively upwards, and the oil-out of oil inlet passage 15 is in upper rotation On the upper end side wall in portion 201, oil-out is connected with movable chamber 21, after telescopic drive part 5 is stopped, can be to oil inlet passage 15 Interior injection lubricating oil, lubricating oil is entered into movable chamber 21, and lubricating oil is to upper helical teeth band 18, oblique cingulum 17 and contradicts block 1601 Surface be lubricated, conflict block 1601 is subtracted with frictional force of the upper helical teeth with generation is contradicted between 18, oblique cingulum 17 respectively It is small；The oil discharge passage 13 connected with inside movable chamber 21, the edge of oil discharge passage 13 are offered on the upper end side wall of upper rotation section 201 Downward spiral extends to be formed on the axis direction of rotor 2, and the lubricating oil in movable chamber 21 is discharged by oil discharge passage 13, so Flowing downward in the inner-spiral type of oil discharge passage 13 afterwards, during flowing, lubricating oil acts on the inwall of mounting groove 4 and rotates Between body 2, reduce the frictional force between rotor 2 and the inwall of mounting groove 4.

The course of work of the present embodiment is as follows：The block 1601 that contradicts contradicted on disk 1602 is located at two adjacent oblique cingulums In slot between 17, telescopic drive cylinder operation, its piston rod drive contradict disk 1602 move straight up so that drive to Contact block 1601 between oblique cingulum 17 out, and with upper helical teeth with 18 inclined-plane contradict, with contradict disk 1602 continue up Mobile, rotor 2 carries out rotation clockwise under inclined-plane guide effect of the upper helical teeth with 18, so as to drive the up time of indexing rotary table 1 Pin rotation, realizes that once indexing is turned to, and the piston rod of telescopic drive cylinder is shunk, and drives conflict block 1601 to move down, Now, it is the relative inclined-plane of next oblique cingulum 17 adjacent with former oblique cingulum 17 to contradict block 1601, with conflict block 1601 Continue sliding downwards, contradict block 1601 and contradicted with the inclined-plane of oblique cingulum 17, under the guide effect on the inclined-plane of oblique cingulum 17, support The promotion rotor 2 of contact block 1601 carries out rotation clockwise again, so that drive indexing rotary table 1 to be rotated clockwise again, Allow by the way of rotating in same direction twice indexing rotary table 1 index rotation angle it is larger, the indexing of the indexing rotary table 1 of expansion Value scope.

Embodiment 2：A kind of index dial, as shown in fig. 6, difference from Example 1 is, it is in the present embodiment, upper to turn The mode that is detachably connected of dynamic portion 201 and lower rotation section 202 is clamping, and the side of locating convex block 12 is provided with horizontal installation Hole, installs spring steel ball 20 in mounting hole, and the card being engaged by clamping with spring steel ball 20 is provided with the madial wall of detent 7 Connect hole（Not shown in figure）, when detent 7 and locating convex block 12 carry out location fit, spring steel ball 20 snaps into blocked hole It is interior, so as to realize being detachably connected for rotation section 201 and lower rotation section 202, comparing side is dismounted by the way of clamping Just, fast.

Claims (10)

1. a kind of index dial, including mounting seat (3), indexing rotary table (1) is provided with the mounting seat (3), it is characterised in that：Institute State in the rotor (2) being provided with mounting seat (3) with indexing rotary table (1) synchronous rotation, the rotor (2) and be provided with activity Chamber (21) and the collision piece (16) slid up and down in movable chamber (21), are provided with around arranged distribution in the movable chamber (21) On movable chamber (21) inwall and interlaced corresponding upper helical teeth band (18) and oblique cingulum (17), the mounting seat (3) sets Be equipped with the telescopic drive part (5) being fixedly connected with collision piece (16), the telescopic drive part (5) drive collision piece (16) upwards with Upper helical teeth band (18) offsets to drive rotor (2) rotation, the telescopic drive part (5) drive collision piece (16) downwards with it is oblique Cingulum (17) offsets to drive rotor (2) rotation in the same direction again.

2. index dial according to claim 1, it is characterised in that：The rotor (2) including be detachably connected upper turn Dynamic portion (201) and lower rotation section (202), the upper helical teeth band (18) surround and are distributed on rotation section (201), the lower helical teeth Around being distributed on lower rotation section (202), the lower rotation section (202) rotates and is connected band (17) with mounting seat (3).

3. index dial according to claim 2, it is characterised in that：Detent is offered on the upper rotation section (201) (7), be provided with the lower rotation section (202) in insertion detent (7) and with the convex of detent (7) male-female engagement Block (12).

4. index dial according to claim 1, it is characterised in that：It is provided with the mounting seat (3) and rotor (2) The elastic skewback mechanism (22) of rotor (2) reversed turning is limited on rotor (2) circumferencial direction.

5. index dial according to claim 1, it is characterised in that：It is provided with along rotor (2) in the movable chamber (21) The guide pillar (6) that axis direction extends, the collision piece (16) slides up and down on guide pillar (6).

6. index dial according to claim 1, it is characterised in that：The indexing rotary table (1) detachably connects with rotor (2) Connect.

7. index dial according to claim 6, it is characterised in that：The lateral wall depression of the rotor (2) is formed with ring Shape draw-in groove (11), is provided with the snap ring (14) being engaged by clamping with annular slot (11) on the indexing rotary table (1).

8. the index dial according to claim 1 or 6, it is characterised in that：Keeper (9) is provided with the rotor (2), The location hole (19) for keeper (9) insertion is provided with the indexing rotary table (1).

9. index dial according to claim 1, it is characterised in that：Open up oriented on the mounting seat (3) and rotor (2) The oil inlet passage (15) that lubricating oil is injected on helical teeth band (18) and oblique cingulum (17) is gone up in movable chamber (21).

10. index dial according to claim 1, it is characterised in that：Offered and activity on the outer wall of the rotor (2) The oil discharge passage (13) of connection in chamber (21), the oil discharge passage (13) extends spirally on rotor (2) axis direction Formed.