CN102320019B

CN102320019B - Double-shaft index head

Info

Publication number: CN102320019B
Application number: CN201110239269.1A
Authority: CN
Inventors: 李红岩; 李成林
Original assignee: PINGDINGSHAN DONGFANG HUIPU INDUSTRY TRADE CO LTD
Current assignee: PINGDINGSHAN DONGFANG HUIPU INDUSTRY TRADE CO LTD
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2014-04-09
Anticipated expiration: 2031-08-19
Also published as: CN102320019A

Abstract

The invention relates to a double-shaft index head which comprises a base. The base is provided with a first spindle box. A first spindle is rotationally assembled on the first spindle box. One end of the first spindle is provided with a fist dial and is fixedly connected with a second spindle box through the first dial. A second spindle is rotationally assembled on the second spindle box. The rotating axis of the second spindle is vertical to the rotating axis of the first spindle. A second index gear for indexing for the rotation of the second spindle around the axis is assembled on the second spindle in a rotation stopping mode. A second locking mechanism is arranged in an inner hole of the first spindle. The second locking mechanism comprises a second locking head which is movably assembled in the first spindle in a guide mode along the axial direction of the first spindle. The end of the second locking head, which faces the second spindle box, is provided with second lock teeth and the other end of the second locking head is in drive connection with a second driving mechanism. Due to the adoption of the double-shaft index head, the problem that the second locking mechanism of the existing fixed bisected double-shaft index head can move along with the second spindle box, so that the existing fixed bisected double-shaft index head is inconvenient to operate is solved.

Description

A kind of Double-shaft index head

Technical field

The present invention relates to a kind of machine tool accessories, especially a kind of Double-shaft index head.

Background technology

Dividing head is a kind of for holding workpiece and make workpiece revolution and machine tool accessories that calibration is located.Dividing head is mainly used in milling machine, is also usually used in drilling machine and surface grinding machine.Traditional dividing head only has for workpiece being carried out to the horizontal Horizontal dividing mechanism that adds man-hour, mainly comprises base, main spindle box, scale disc, dividing arm and main shaft; Wherein scale disc is connected with spindle drive by turbine and worm mechanism, and main shaft can only be around self axis rotation in horizontal plane, and main shaft rotates a circle and needs rotary dial sheet 30-40 circle conventionally, and efficiency is extremely low; Due to the existence of turbine and worm transmission process intermediate gap, the indexing accuracy of traditional dividing head is also difficult to meet the demand of some high accuracy occasions in addition.In order to address the above problem, application number is that 200720102842.3 Chinese patent discloses a kind of quick indexing, positioning and locking head, described quick indexing, positioning and locking head comprises matrix (base), be supported horizontally inside main shaft on described body, dividing gear, for locking the retaining mechanism of dividing gear, the periphery of described dividing gear upwards has calibration teeth groove, described retaining mechanism comprises the elastic positioning pin being arranged on described matrix, the front end of described elastic positioning pin is used for snapping in and shift out the teeth groove of described dividing gear, thereby realizes calibration; On main shaft, be also rotatably equipped with oscillating deck, on described oscillating deck, in correspondence position, be fixed with respectively crank and clapboard, described crank is for controlling along oscillating deck described in the circuit oscillation of main shaft for operating personnel, on described elastic positioning pin, there is the step surface corresponding with described clapboard, the corresponding end of described clapboard is pushed up pressure or is discharged described step surface in the process swinging with described oscillating deck, thereby realize the Plug Action of elastic positioning pin on dividing gear, above each parts have formed Horizontal dividing mechanism.Above-mentioned quick indexing, positioning and locking head has effectively solved that traditional dividing head efficiency is low, the problem of low precision.But because it has described Horizontal dividing mechanism, at some processing works, need to stand respectively, sleepingly add man-hour, above-mentioned quick indexing, positioning and locking head can not be suitable for because main shaft cannot move in vertical plane.In addition, because the action of described elastic positioning pin is to drive by clapboard, and described clapboard to be the swing making progress in main shaft week by crank drive, even if therefore establish main spindle box in main shaft outer cup, also must slotted hole be set at the event trace place of crank correspondence position, cannot realize main shaft, the sealing of dividing gear etc., and the workshop of the general Shi of the environment for use of dividing head factory, be subject to the impact of its working environment, described dividing gear is very easily by dirt, chip, the pollutions such as cutting fluid, and teeth groove on index dial is the core component that guarantees dividing head precision, after index dial is contaminated, must guarantee the precision of whole mechanism, especially cutting fluid enters the corrosion by after a while, even may cause the rust of whole mechanism dead, thereby cause the paralysis of whole mechanism.

In order to overcome above-mentioned quick indexing, positioning and locking head, can not realize vertical, sleeping general problem, on market, there is a kind of direct dividing head of determining, it is Double-shaft index head, described direct dividing head comprises base, the first main spindle box and the rotation that are arranged on base are assemblied in the first main shaft in described the first main spindle box, the pivot center of described the first main shaft is parallel with horizontal plane, its one end is provided with the first dial and is connected with the second main spindle box by its dial, on described the second main spindle box, be rotatably equipped with the second main shaft, the pivot center of described the second main shaft is vertical with the pivot center of the first main shaft, first, on the second main spindle box, be respectively arranged with for locking first, first of the rotation around axis of the second main shaft, the second retaining mechanism, during use, can around the rotation of axis, complete the calibration in horizontal direction by the second main shaft, rotation by the first main shaft completes the calibration on vertical direction, thereby that realizes determines the vertical of direct dividing head, sleeping general.

Although described, determine direct dividing head and realized the vertical, sleeping general of dividing head, but because the second described main spindle box can rotate in perpendicular, and described the second retaining mechanism is arranged on the second described main spindle box, when therefore the second main spindle box rotates in perpendicular, the second retaining mechanism moves thereupon, this makes staff in perpendicular, rotate the position that all needs heavily to find the second retaining mechanism after described the second main spindle box at every turn, has brought great inconvenience to staff's use.

Summary of the invention

The object of the present invention is to provide a kind of Double-shaft index head, to solve, existingly determine direct dividing head because its second retaining mechanism moves with meeting the second main spindle box and the unhandy problem that causes.

In order to address the above problem, Double-shaft index head of the present invention by the following technical solutions: a kind of Double-shaft index head, comprise base, the lower surface of described base is the datum level for coordinating with platen, on described base, be provided with the first main spindle box and be rotatably equipped with the first main shaft on described the first main spindle box, described the first main shaft is that hollow shaft and its pivot center are parallel with described datum level, on the first main shaft, stop the first dividing gear that spinning is furnished with the rotation calibration that is used to the first main shaft, on the first main spindle box, corresponding described the first dividing gear periphery is provided with the first retaining mechanism, described the first retaining mechanism comprises along the radially activity-oriented of the first dividing gear and is assemblied in the first locking head on the first main spindle box, described the first locking head has teeth groove for inserting the first dividing gear to lock the first lock tooth of the first dividing gear towards one end of the first dividing gear, the other end is connected with the first driving mechanism, one end of described the first main shaft has the first dial, and be fixed with the second main spindle box by described the first dial, on described the second main spindle box, be rotatably equipped with the second main shaft, the pivot center of described the second main shaft is vertical with the pivot center of the first main shaft, on the second main shaft, only spinning is furnished with and is used to the second main shaft around the second dividing gear of the rotation calibration of axis, in the endoporus of the first main shaft, be provided with the second retaining mechanism, described the second retaining mechanism comprises along the axial activity-oriented of the first main shaft and is assemblied in the second locking head in the first main shaft, described the second locking head has teeth groove for inserting the second dividing gear to lock the second lock tooth of the second dividing gear towards one end of the second main spindle box, the other end is connected with the second driving mechanism.

The first described driving mechanism comprises the first driving shaft and is connected in the driving of first between described the first locking head and the first driving shaft lock sleeve, described the first drive shaft turns is assemblied on the first main spindle box and with the axial Anti-moving of the first main spindle box and coordinates, described first drives lock sleeve to be assemblied on the first main spindle box and with the first main spindle box and only to screw and close along its axial activity-oriented, first drives one end and first locking head of lock sleeve to be connected, and the other end coordinates formation screw--screw mechanism with the first drive shaft screw thread.

Described the first locking head is truncated cone, its one end towards described the first dividing gear is bigger diameter end, the other end is miner diameter end, described first drives lock sleeve to have towards one end of described the first dividing gear the first taper hole section that cover is established the first locking head, in described the first taper hole section, there is the first harmomegathus seam, between adjacent two first harmomegathus seams, forming can be along the first harmomegathus pawl radially actuating of the first driving lock sleeve, in having, the adjoiner of the other parts of described the first taper hole section and the first driving lock sleeve turns edge, in the first driving lock sleeve, be provided with the first connecting bolt, described the first connecting bolt is spirally connected with the miner diameter end of the first locking head and coordinates by the block that turns edge in its bolt head and the first driving lock sleeve, between turning edge in the miner diameter end of the first locking head and the first driving lock sleeve, have for first and drive lock sleeve with respect to the first locking head, to move to strut the setting gap of each first harmomegathus pawl.

Between the bolt head of the first described connecting bolt and described the first driving shaft, be top-loaded with the first locking spring.

Described the second driving mechanism comprises the second driving shaft and is connected in the driving of second between described the second locking head and the second driving shaft lock sleeve, described the second drive shaft turns is assemblied on the first main shaft or the first main spindle box and with the first main shaft or the axial Anti-moving of the first main spindle box and coordinates, second drives lock sleeve to be assemblied in the first main shaft and with the first main spindle box and/or the first main shaft and only to screw and close along its center line bearing of trend activity-oriented, second drives one end and second locking head of lock sleeve to be connected, and the other end coordinates formation screw--screw mechanism with the second drive shaft screw thread.

Described the second drive shaft turns is assemblied on the first main spindle box, described second drives lock sleeve to comprise the second actuating sleeve coordinating with described the second drive shaft screw thread and the second lock sleeve being connected with described the second locking head, described the second actuating sleeve and the first main spindle box only screw and close, the second lock sleeve and the first main shaft only screw and close, between described the second actuating sleeve and the second lock sleeve, be provided with thrust bearing, the second actuating sleeve dorsad one end of the second driving shaft turns edge in having, the second lock sleeve dorsad one end of the second locking head is fixed with connecting axle, described connecting axle insert the second actuating sleeve in Kong Bingyu the second actuating sleeve anticreep surrounding that turns edge coordinate, described thrust bearing is assemblied on described connecting axle, described the second locking head is truncated cone, its one end towards the second described dividing gear is bigger diameter end, the other end is miner diameter end, described the second lock sleeve has towards one end of described the second dividing gear the second taper hole section that cover is established the second locking head, in described the second taper hole section, there is the second harmomegathus seam, between adjacent two second harmomegathus seams, forming can be along the second harmomegathus pawl radially actuating of the second lock sleeve, in having, the adjoiner of the other parts of described the second taper hole section and the second lock sleeve turns edge, in the second lock sleeve, be provided with the second connecting bolt, described the second connecting bolt is spirally connected with the miner diameter end of the second locking head and coordinates with the block that turns edge in the second lock sleeve by its bolt head, between turning edge in the miner diameter end of the second locking head and the second lock sleeve, have and for the second lock sleeve, with respect to the second locking head, move to strut the setting gap of each second harmomegathus pawl.

Between the bolt head of described the second connecting bolt and described the second driving shaft, be top-loaded with the second locking spring.

On described the first main spindle box, the periphery of corresponding described the first dividing gear is provided with the first sound generating mechanism, described the first sound generating mechanism comprise for when the first dividing gear rotates and its gear teeth be slidably matched and clash into wheel face between adjacent two gear teeth of the first dividing gear to send the first sounding contact of the sound, described the first sounding contact is assemblied on the first main spindle box along the radially activity-oriented of the first dividing gear, and the first sounding contact dorsad one end of the first dividing gear is top-loaded with the first sounding spring.

On described the second main spindle box, corresponding described the second dividing gear is upwards provided with the second sound generating mechanism in week, described the second sound generating mechanism comprise for when the second dividing gear rotates and its gear teeth be slidably matched and clash into wheel face between adjacent two gear teeth of the second dividing gear to send the second sounding contact of the sound, described the second sounding contact is assemblied on the second main spindle box along the radially activity-oriented of the second dividing gear, and the second sounding contact dorsad one end of the second dividing gear is top-loaded with the second sounding spring.

On described the first main spindle box, the circumferential place of corresponding described the first dividing gear is provided with spacer pin, and the first dividing gear is provided with for coordinate to limit the position limiting structure of the rotational angle of the first main shaft with described spacer pin block.

Because Double-shaft index head of the present invention is arranged at the second locking head of described the second retaining mechanism in the endoporus of described the first main shaft, even the second retaining mechanism rotates with the second main spindle box in the process of therefore rotating at the second main spindle box, also be the rotation around fixed axis (axis of the first main shaft), and can not be shifted, thereby facilitated staff's operation, solved and existingly determined decile Double-shaft index head because its second retaining mechanism moves with meeting the second main spindle box and the unhandy problem that causes.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment 1 of Double-shaft index head;

Fig. 2 is the structural representation of the first retaining mechanism in the embodiment 1 of Double-shaft index head;

Fig. 3 is that the A of Fig. 2 is to view;

Fig. 4 is the structural representation of the second retaining mechanism in the embodiment 1 of Double-shaft index head;

Fig. 5 is the schematic diagram of the cooperation place of the first dial in the embodiment 1 of Double-shaft index head and the first main spindle box;

Fig. 6 is the stereogram of the embodiment 1 of Double-shaft index head;

Fig. 7 is the first retaining mechanism of embodiment 2 and the schematic diagram that coordinates of the first dividing gear of Double-shaft index head.

The specific embodiment

The embodiment 1 of Double-shaft index head, as shown in Fig. 1-6, there is base 1, the lower surface of base 1 is level reference, on base 1, be installed with the first main spindle box 2, the first main spindle box 2 has forward and backward boxboard and the left and right boxboard being oppositely arranged between two, on the first main spindle box 2, be equipped with the first main shaft 3, the first main shafts 3 rotate on the left and right boxboard that is assemblied in the first main spindle box 2 and its pivot center parallel with described level reference, on the first main shaft 3 in a left side for the first main spindle box 2, between right boxboard, be equipped with and be used to the first main shaft 3 around the first dividing gear 4 of the rotation calibration of axis, the first dividing gear 4 only spinning be assigned on the first main shaft 3 and the first main shaft 3 axially on coordinate with the first main shaft 3 Anti-movings, on the front boxboard of the first main spindle box 2, be equipped with for coordinate the rotation around axis with locking the first main shaft 3(with the first dividing gear 4) the first retaining mechanism, the first retaining mechanism comprises the first locking head 5 and the first driving mechanism, the first locking head 5 is for along the first dividing gear 4 radially movable with locking or discharge the first dividing gear 4, the first driving mechanism is used for driving the first locking head 5 activities, the first driving mechanism comprises the first lock 6 on the front boxboard that is fixedly assemblied in the first main spindle box, cylindrical and the Yu Qizhou of the first lock 6 upwards has outer turning edge with threaded hole, one end of the first lock 6 is plugged on the front boxboard of the first main spindle box 2 and is connected by its front boxboard of continuing to use screw and the first main spindle box 2 that turns up, wherein the first lock 6 outer turn edge and the boxboard lateral surface of the first main spindle box 2 between be pressed with the first sealing ring, in the first lock 6, from front side to the rear side of the first main spindle box 2, be equipped with successively the first gland 7, the first driving shaft 8 and first drives lock sleeve 9, specifically, in the endoporus of the first lock 6, have in one and turn edge, the periphery of the first driving shaft 8 has outer turning edge, the rear end of the first driving shaft 8 has external thread section, the other end has a connector, the rear end of the first driving shaft 8 from the front end of the first lock 6 insert the first lock 6 and by it, turn edge with in the first lock 6 in the block that turns edge coordinate, the first gland 7 is assembled to the front end of the first lock 6 and is rotatably assorted with the corresponding position of the first driving shaft 8 after the first driving shaft 8 inserts the first lock 6, on the first gland 7, there is the through hole that the connector for the first driving shaft 8 front ends passes, the connector of the first driving shaft 8 passes the through hole on the first gland 7 and stops spinning and be furnished with the first in command 10, the first in command 10 is for controlling to rotate the first driving shaft 8 for staff, on the outer peripheral face of the first driving lock sleeve 9, there is the gathering sill extending vertically, first drive lock sleeve from the rear end of the first lock insert the first lock 6 and by its gathering sill be assemblied in the first lock 6 guider screw 11 on turning edge only revolve to lead and coordinate, thereby make the first driving lock sleeve 9 can only move back and forth vertically and cannot rotate with respect to the first driving shaft 8, first drives lock sleeve 9 by being arranged at the internal thread segment of its front end and the external thread section threaded engagement of the first driving shaft 8, thereby form a screw--screw mechanism, can order about the first driving lock sleeve 9 reciprocating motion vertically by the rotation of the first driving shaft 8, first drives the rear end of lock sleeve 9 to have a pre-small post-large taper hole section and in being upwards provided with the harmomegathus seam extending vertically the week of its taper hole section, between adjacent two expansion joints, form the first harmomegathus pawl 12, the first harmomegathus pawl 12 can be realized harmomegathus radially after being subject to external force, the first locking head 5 comprises the first tapered end body of pre-small post-large taper, its rear end has for embedding in the teeth groove of the first dividing gear 4 to lock the first lock tooth 5-1 of the first dividing gear, the first locking head 5 be arranged at the first driving lock sleeve 9 rear end and by the first connecting bolt 13 and first drive lock sleeve 9 vertically movable anticreep coordinate, specifically, the gear edge that the adjoiner between the taper hole Duan Yuqi other parts of the first driving lock sleeve 9 turns in having, the first connecting bolt 13 before the first driving lock sleeve 9 inserts the first locks 6 from the front end (away from one end of its taper hole section) of the first driving lock sleeve 9 insert first drive lock sleeve 9 and pass the first driving lock sleeve 9 in the hole that turns edge and surround, between the rear end of the bolt head of the first connecting bolt and the first driving shaft 8, be top-loaded with the first locking spring 14, the bolt head of the first connecting bolt 13 turns edge spacing cooperation under the elastic force of the first locking spring 14 with in the first driving lock sleeve 9, the first locking head 5 is bolted on the external thread section of the first connecting bolt, (the first lock tooth is separated with the first dividing gear when discharging the first dividing gear 4 for the first locking head 5, when non-interference) there is setting gap between turning edge in its front end (near one end of the first connecting bolt) and the first driving lock sleeve 9, this is set large I intermittently and arranges arbitrarily as required, but should note being not less than 1 millimeter, need to lock the first main shaft 3 while making it cannot complete the rotation around axis, can pass through the first in command's 10 turn the first driving shafts, thereby drive first to drive lock sleeve to move backward, meanwhile, the first locking spring pushes the first locking head and synchronously moves backward, after the first locking head embeds the teeth groove that the first dividing gear is corresponding, continue turn the first driving shaft, the first locking head is static, first drives lock sleeve to continue to move backward, now each first harmomegathus pawl footpath under the stopping of the first locking head outwards rise (because the first locking head has setting gap between turning edge in its front end and the first driving lock sleeve when discharging the first dividing gear), thereby by its (the first harmomegathus pawl) internal face, " holding " the first locking head tightly cannot rotate with respect to the first driving lock sleeve it, by its outside wall surface, coordinate with the first main spindle box jam-packed, make the first driving lock sleeve, with respect to the first main spindle box, any rotation cannot occur, make the first locking head, after its first lock tooth embeds the first dividing gear, any rotation can not occur, in addition, the first locking spring limits the activity on the fore-and-aft direction of the first locking head simultaneously, finally realizes fixing after locking the first dividing gear of the first locking head, prevents because of its movable problem that causes that location is inaccurate.On the rearing-box plate of the first main spindle box 2, be provided with the first sound generating mechanism, the first sound generating mechanism comprises the first sounding spring 15, the first sounding contact 16 and the first seal cover 17, on the rearing-box plate of the first main spindle box 2, the periphery of corresponding the first dividing gear 4 is provided with for assembling the pilot hole of the first sounding contact 16, the first sounding contact 16 is assemblied in described pilot hole along fore-and-aft direction (be the first dividing gear radially) activity-oriented simultaneously, the first seal cover 17 is fixedly assemblied on the rearing-box plate of the first main spindle box 2 and seals the aperture of the pilot hole on described rearing-box plate, first spring 15 occurs is mounted between the first seal cover 17 and the first sounding contact 16, when the first dividing gear 4 rotates with the first main shaft, the first sounding contact 16 is slidably matched successively and clashes into the wheel face between adjacent two gear teeth with the corresponding gear teeth of the first dividing gear 4 under the effect of the first sounding spring 15, thereby send the sound and whether arrive locked position with prompting staff, on the rearing-box plate of the first main spindle box 2, be also provided with spacer pin 18, spacer pin 18 coordinates to limit the rotational angle of the first main shaft 3 for the position limiting structure block with on the first dividing gear 4, specifically, the corresponding spacer pin of the first dividing gear 4 18 places are provided with breach (certainly, in other embodiments, described position limiting structure can also adopt the block of outwards circumferentially dispersing from the first dividing gear), spacer pin 18 coordinates at the two ends block making progress in week with its breach when the first dividing gear 4 rotates, thereby can make the first main shaft 3 rotate in set angle, avoid rotating excessively, in the present embodiment, the rotational angle of setting the first main shaft is that 90 degree are (certain, in other embodiments, described set angle between 20 to 180 degree all can).The first main shaft 3 stretches out the front boxboard of the first main spindle box and is provided with the first dial 3-1 for hollow shaft and its front end, the first dial 3-1 is round pie and is provided with threaded connection hole, in the periphery of the first dial 3-1, there is the first calibrated dial, the boxboard arranged outside of the first main spindle box has the first corresponding reference graduation (in other embodiment, the first described reference graduation and the position of the first calibrated dial can exchange), the first calibrated dial is for coordinating with the first reference graduation the angle that shows that the first main shaft turns over around axis, the first dial 3-1 has the first circular bulge loop 3-2 near a side of the first main spindle box 2, the dead in line of the axis of the first bulge loop 3-2 and the first main shaft 3, in the outside wall surface of the right boxboard of the first main spindle box 2, there is the annular first groove 2-1 corresponding with the first bulge loop 3-2, the first bulge loop 3-2 embeds in described the first groove 2-1, the first gutter 3-3 on the outer peripheral face of the first bulge loop with annular, the notch of the first gutter 3-3 makes progress towards the periphery of the first bulge loop, on the first main spindle box 2, there is the first row water hole 2-2 connecting with the first gutter, the aperture of first row water hole 2-2 down, the first bulge loop, the first groove and the first row mouth of a river are for realizing the waterproof between the first dial and the first main spindle box, its the waterproof principle is as follows: the liquid substance in working environment enters behind the gap between the first dial and the first main spindle box, under the guiding of described the first groove, flow downward, thereby avoid further in the first main spindle box, infiltering, after flowing downward with groove, liquid directly discharges by the described first row mouth of a river, thereby realize water-proof function, waterproof does not lie in traditional " filling gap " and makes it not penetrating herein, and the flow behavior that is to utilize fluid guides the flow direction of conscious guiding water, therefore greatly improved sealing effectiveness.

The first main shaft 3 is connected with the second main spindle box 21 by its first dial 3-1 flange, the second main spindle box 21 is rotated and is assemblied on the first main spindle box 2 by the first main shaft 3, on the second main spindle box 21, be equipped with the second main shaft 22, the second main shaft 22 around axis rotate be assemblied on the second main spindle box 21 and its pivot center vertical with the pivot center of the first main shaft 3, the second main spindle box 21 comprises the left boxboard being fixed on described the first dial 3-1, right boxboard with this left boxboard parallel interval setting, be divided into this left side, on right boxboard, lower both sides upper, lower boxboard and be divided into this left side, before right boxboard, before rear both sides, rearing-box plate, wherein the second main shaft 22 rotate be assemblied in the second main spindle box 21 before, on rearing-box plate, its front end stretches out the rearing-box plate of the second main spindle box 21 and has the second dial 22-1 of frock required when connecting processing work, the second dial 22-1 is patty and its periphery upwards has the second calibrated dial, on the upper boxboard of the second main spindle box 21, there is second reference graduation corresponding with the second calibrated dial, the second dial has the second circular bulge loop near a side of the second main spindle box, the dead in line of the axis of the second bulge loop and the second main shaft, in the outside wall surface of the rearing-box plate of the second main spindle box, there is annular second groove corresponding with the second bulge loop, the second bulge loop embeds in described the second groove, second gutter on the outer peripheral face of the second bulge loop with annular, the notch of the second gutter makes progress towards the periphery of bulge loop, on the second main spindle box, there is the second row water hole connecting with the second gutter, when the axis of the second main shaft is parallel to level reference, the aperture in second row water hole down, the second bulge loop, the second groove and the second row mouth of a river are for realizing the waterproof between the second dial and the second main spindle box, and its waterproof principle is identical with the principle in the first bulge loop, the first groove and first row water hole.

On the second main shaft 22, only spinning is furnished with the second dividing gear 23, it is the rotation calibration of the second main shaft 22 by the teeth groove (or gear teeth) making progress in its week that the second dividing gear is used for, the left boxboard left side of the second main spindle box 21 is provided with for coordinating the second retaining mechanism with the rotation of locking the second main shaft 22 with the second dividing gear 23, the second retaining mechanism comprises the second driving mechanism and the second locking head 24, the second locking head 24 is for coordinating locking the second main shaft 22 around the rotation of axis with the second dividing gear 23, the second driving mechanism is used for driving the second locking head 24 activities, the second driving mechanism comprises that the second driving shaft 25 and second from left to right setting gradually drives lock sleeve, wherein, described second drives lock sleeve to comprise the second actuating sleeve 26 and the second lock sleeve 27 that the first from left right side is coaxially set, the second driving shaft 25 rotates and is assemblied on the left boxboard of the first main spindle box 2, specifically, on the left boxboard of the first main spindle box 2, the left end place of corresponding the first main shaft 3 is equipped with holder 28, on holder 28, have with the through hole of the endoporus coaxial line of the first main shaft 3 and in being provided with in its through hole and turn edge, the second driving shaft 25 inserts holder 28 and coordinates by the block that turns edge in the through hole turning edge being arranged at that its periphery makes progress with holder 28 from the left end of holder 28, the second driving shaft 25 is fixed in the gland 29 in holder 28 outsides (left side) by Screw assembly after inserting holder 28, thereby the second driving shaft 25 can only be rotated in holder, cannot move vertically with respect to holder, the left end of the second driving shaft 25 stretches out described gland and stops spinning and be furnished with the second in command 30, the second in command 30 rotates for control to rotate the second driving shaft 25 for staff, the right-hand member of the second driving shaft 25 (inserting the one end in holder) has the external thread section stretching in the first main shaft 3, the second actuating sleeve 26 is assemblied in the first main shaft 3 and only revolves (key) with the first main shaft 3 along the axial activity-oriented of the first main shaft 3 and coordinates, its left end (near one end of the second driving shaft) has the internal thread segment with the external thread section threaded engagement of the second driving shaft, thereby being coordinated with the second actuating sleeve 26, the second driving shaft 25 forms a leading screw--screw mechanism, can complete by the rotation of the second driving shaft 25 the axial activity of the second actuating sleeve 26, the right-hand member of the second actuating sleeve 26 is fitted with connecting axle 31 and coordinates with connecting axle 31 anticreeps by turning edge in one, on connecting axle 31, there is the gear edge of turning up and be equipped with thrust bearing 32 between its gear edge and the right-hand member of the second actuating sleeve 26, the right-hand member of connecting axle 31 is threaded with the second lock sleeve 27, the right-hand member of the second lock sleeve 27 has one and becomes gradually from left to right large taper hole section and in the periphery of this taper hole section, be provided with the axially extended expansion joint along the first main shaft, between adjacent two expansion joints in the taper hole section of the second lock sleeve 27, form between the second harmomegathus pawl 33 of harmomegathus radially and its taper hole Duan Yuqi other parts, also have inside turnover in turn edge, in on the second lock sleeve 27, turn edge and surround a lock tube pilot hole with the second lock sleeve 27 coaxial lines, in the second lock sleeve 27, be provided with the second connecting bolt 34, between the right side of the bolt head of the second connecting bolt 34 and connecting axle 31, be top-loaded with the second locking spring 35, the bolt head of the second connecting bolt 34 coordinates with the block that turns edge in the second lock sleeve 27 under the effect of the second locking spring 35, simultaneously, the front end of the second connecting bolt 34 stretch out the second lock sleeve 27 in the turn edge lock tube pilot hole that surrounds lead and coordinate on left and right directions with this lock tube pilot hole, that the second connecting bolt 34 stretches out described lock tube pilot hole and be spirally connected with the second locking head 24, the second locking head 24 comprises the second tapered end body of the truncated cone that becomes gradually from left to right large and is arranged at the second lock tooth on this second tapered end body right-hand member (bigger diameter end) end face, the second lock tooth is for embedding teeth groove on the second dividing gear with locking the second dividing gear, between turning edge in the left end of the second tapered end body and the second lock sleeve, there is setting gap, when turn the second driving shaft 25 drives the second lock sleeve 27 to move forward, the second harmomegathus pawl 33 moves right and swell radially, thereby by inner wall surface thereof, compress the outside wall surface of tapered end body, thereby the internal face of being close to the first main shaft by its outside wall surface locks the second locking head, it cannot be rotated, and then the positioning precision of assurance the second locking head and the second dividing gear.On the right boxboard of the second main spindle box 21, the periphery of corresponding the second dividing gear is provided with the second sound generating mechanism, the second sound generating mechanism comprises the sounding seat 36 on the right boxboard that is fixedly assemblied in the second main spindle box and is assemblied in the second sounding contact 37 in 36 of sounding seats, sounding seat 36 is one have the hollow shaft sleeve structure of ring flange and by its ring flange, be fixedly assemblied on the right boxboard of the second main spindle box 21, on sounding seat 36, in the right side of its ring flange, be equipped with bearing and be rotatably assorted by bearing and the bearing 40 that is arranged at the second main spindle box 21 right sides, the outer setting of bearing has cover cap 38, the dead in line of the centerline hole of the endoporus of sounding seat 36 and the first main shaft 3, the second sounding contact 37 along the centerline hole activity of the endoporus of sounding seat, be assemblied in the endoporus of sounding seat and and described cover cap 38 between be top-loaded with the second sounding spring 39, the second main shaft is when axis rotates, the left end of the second sounding contact under the effect of the second sounding spring 39 and each gear teeth of the second dividing gear be slidably matched and clash into the wheel face between adjacent two gear teeth of the second dividing gear and occur, thereby whether prompting staff arrives locked position.

On the upper boxboard of the second main spindle box, be provided with positioning datum bar 41 and positioning datum piece 42, positioning datum bar 41 extends axially along the second main shaft, positioning datum piece 42 has two, two positioning datum pieces 42 are divided into the both sides of positioning datum bar, wherein the upper surface of positioning datum bar and positioning datum piece is all positioned at same plane, this plane is parallel with datum level when the axis of the second main shaft is parallel to datum level, and positioning datum bar and positioning datum piece detect the positioning precision of workpiece for staff's (by drawing table) when operating.

The embodiment 2 of Double-shaft index head, as shown in Figure 7, the difference of the present embodiment and embodiment 1 is only, the first described locking head 5 is arranged on the first main spindle box 2 by a lock housing 51, upwards be provided with allocating slot the week of the first locking head 5 and in its allocating slot, be provided with pusher dog 52, described pusher dog 52 only spinning is assigned in a rotating shaft 53, described rotating shaft 53 is rotatably assorted with lock housing 51 and outside lock housing 51, stops spinning and be furnished with spanner 54, the first locking head 5 is top-loaded with the 3rd locking spring 55 between its first lock one end of tooth and lock housing 51 dorsad, its course of work is as follows: when needs locking the first dividing gear, discharge described spanner, the first locking head embeds in the corresponding teeth groove of the first dividing gear under the effect of the 3rd locking spring, when needs discharge the first dividing gear, only need pull described spanner, thereby overcome the elastic force of the 3rd locking spring, make the first locking head separated with the first dividing gear, now can complete the rotation of the first main shaft, certainly, in other embodiments, also the 3rd described locking spring can be replaced with to the torsion spring being set in described rotating shaft, the second retaining mechanism also can also be changed into this kind (in embodiment 2) retaining mechanism, certainly, in such cases, described lock housing need to be connected with the first main shaft on.

In the embodiment 1 of Double-shaft index head, the first described retaining mechanism can also be arranged in the periphery of the first dividing gear the optional position of the first main spindle box; The second described actuating sleeve and the second lock sleeve can also be made as to one, certainly, in such cases, it the described axial Anti-moving of the second driving shaft, rotation must be assemblied in the endoporus of the first main shaft, so that can rotate to adapt to the second dividing gear with the upset of the first main shaft with the first spindle synchronous.

Claims

1. a Double-shaft index head, is characterized in that: comprise base, the lower surface of described base is the datum level for coordinating with platen;

On described base, be provided with the first main spindle box and be rotatably equipped with the first main shaft on described the first main spindle box, described the first main shaft is that hollow shaft and its pivot center are parallel with described datum level, on the first main shaft, stop the first dividing gear that spinning is furnished with the rotation calibration that is used to the first main shaft, on the first main spindle box, corresponding described the first dividing gear periphery is provided with the first retaining mechanism, described the first retaining mechanism comprises along the radially activity-oriented of the first dividing gear and is assemblied in the first locking head on the first main spindle box, described the first locking head has teeth groove for inserting the first dividing gear to lock the first lock tooth of the first dividing gear towards one end of the first dividing gear, the other end is connected with the first driving mechanism,

One end of described the first main shaft has the first dial, and be fixed with the second main spindle box by described the first dial, on described the second main spindle box, be rotatably equipped with the second main shaft, the pivot center of described the second main shaft is vertical with the pivot center of the first main shaft, on the second main shaft, only spinning is furnished with and is used to the second main shaft around the second dividing gear of the rotation calibration of axis, in the endoporus of the first main shaft, be provided with the second retaining mechanism, described the second retaining mechanism comprises along the axial activity-oriented of the first main shaft and is assemblied in the second locking head in the first main shaft, described the second locking head has teeth groove for inserting the second dividing gear to lock the second lock tooth of the second dividing gear towards one end of the second main spindle box, the other end is connected with the second driving mechanism, described the second driving mechanism comprises the second driving shaft and is connected in the driving of second between described the second locking head and the second driving shaft lock sleeve, described the second drive shaft turns is assemblied on the first main spindle box and with the axial Anti-moving of the first main spindle box and coordinates, second drives lock sleeve be assemblied in the first main shaft and second drive one end of lock sleeve to coordinate formation screw-screw mechanism with the second drive shaft screw thread along its center line bearing of trend activity-oriented, described second drives lock sleeve to comprise the second actuating sleeve coordinating with described the second drive shaft screw thread and the second lock sleeve being connected with described the second locking head, described the second actuating sleeve and the first main spindle box only screw and close, the second lock sleeve and the first main shaft only screw and close, between described the second actuating sleeve and the second lock sleeve, be provided with thrust bearing, the second actuating sleeve dorsad one end of the second driving shaft turns edge in having, the second lock sleeve dorsad one end of the second locking head is fixed with connecting axle, described connecting axle insert the second actuating sleeve in Kong Bingyu the second actuating sleeve anticreep surrounding that turns edge coordinate, described thrust bearing is assemblied on described connecting axle, described the second locking head is truncated cone, its one end towards the second described dividing gear is bigger diameter end, the other end is miner diameter end, described the second lock sleeve has towards one end of described the second dividing gear the second taper hole section that cover is established the second locking head, in described the second taper hole section, there is the second harmomegathus seam, between adjacent two second harmomegathus seams, forming can be along the second harmomegathus pawl radially actuating of the second lock sleeve, in having, the adjoiner of the other parts of described the second taper hole section and the second lock sleeve turns edge, in the second lock sleeve, be provided with the second connecting bolt, described the second connecting bolt is spirally connected with the miner diameter end of the second locking head and coordinates with the block that turns edge in the second lock sleeve by its bolt head, between turning edge in the miner diameter end of the second locking head and the second lock sleeve, have and for the second lock sleeve, with respect to the second locking head, move to strut the setting gap of each second harmomegathus pawl.

2. Double-shaft index head according to claim 1, it is characterized in that: the first described driving mechanism comprises the first driving shaft and is connected in the driving of first between described the first locking head and the first driving shaft lock sleeve, described the first drive shaft turns is assemblied on the first main spindle box and with the axial Anti-moving of the first main spindle box and coordinates, described first drives lock sleeve to be assemblied on the first main spindle box and with the first main spindle box and only to screw and close along its axial activity-oriented, the first locking head be arranged at the first driving lock sleeve rear end and by the first connecting bolt and first drive lock sleeve vertically movable anticreep coordinate, first drives the other end of lock sleeve to coordinate formation screw--screw mechanism with the first drive shaft screw thread.

3. Double-shaft index head according to claim 2, it is characterized in that: described the first locking head is truncated cone, its one end towards described the first dividing gear is bigger diameter end, the other end is miner diameter end, described first drives lock sleeve to have towards one end of described the first dividing gear the first taper hole section that cover is established the first locking head, in described the first taper hole section, there is the first harmomegathus seam, between adjacent two first harmomegathus seams, forming can be along the first harmomegathus pawl radially actuating of the first driving lock sleeve, in having, the adjoiner of the other parts of described the first taper hole section and the first driving lock sleeve turns edge, in the first driving lock sleeve, be provided with the first connecting bolt, described the first connecting bolt is spirally connected with the miner diameter end of the first locking head and coordinates by the block that turns edge in its bolt head and the first driving lock sleeve, between turning edge in the miner diameter end of the first locking head and the first driving lock sleeve, have for first and drive lock sleeve with respect to the first locking head, to move to strut the setting gap of each first harmomegathus pawl.

4. Double-shaft index head according to claim 3, is characterized in that: between the bolt head of the first described connecting bolt and described the first driving shaft, be top-loaded with the first locking spring.

5. Double-shaft index head according to claim 1, is characterized in that: between the bolt head of described the second connecting bolt and described the second driving shaft, be top-loaded with the second locking spring.

6. according to the Double-shaft index head described in claim 1 to 5 any one, it is characterized in that: on described the first main spindle box, the periphery of corresponding described the first dividing gear is provided with the first sound generating mechanism, described the first sound generating mechanism comprise for when the first dividing gear rotates and its gear teeth be slidably matched and clash into wheel face between adjacent two gear teeth of the first dividing gear to send the first sounding contact of the sound, described the first sounding contact is assemblied on the first main spindle box along the radially activity-oriented of the first dividing gear, the first sounding contact dorsad one end of the first dividing gear is top-loaded with the first sounding spring.

7. according to the Double-shaft index head described in claim 1 to 5 any one, it is characterized in that: on described the second main spindle box, corresponding described the second dividing gear is upwards provided with the second sound generating mechanism in week, described the second sound generating mechanism comprise for when the second dividing gear rotates and its gear teeth be slidably matched and clash into wheel face between adjacent two gear teeth of the second dividing gear to send the second sounding contact of the sound, described the second sounding contact is assemblied on the second main spindle box along the radially activity-oriented of the second dividing gear, the second sounding contact dorsad one end of the second dividing gear is top-loaded with the second sounding spring.

8. according to the Double-shaft index head described in claim 1 to 5 any one, it is characterized in that: on described the first main spindle box, the circumferential place of corresponding described the first dividing gear is provided with spacer pin, the first dividing gear is provided with for coordinate to limit the position limiting structure of the rotational angle of the first main shaft with described spacer pin block.