CN2389036Y - Multi-work station local conic gear planetary epicyclic train automatic indexer - Google Patents

Abstract

The utility model relates to a multi-station automatic indexer with a local bevel gear planetary gear train, which is technological equipment used for processing polygon workpiece with high efficiency. The utility model is composed of a plurality of main parts, such as a worm gear driving device, a polygon rotary body, a plurality of automatic indexing stations, etc. The utility model is characterized in that the rotary body is rotated through being driven by the worm gear driving device; the local bevel gear is engaged with a planetary small bevel gear to realize rough graduations in degrees of the workpiece; accurate positioning and fixing are realized by an inserted pin and a scale plate. A continuous cutting motion is formed by rotating and automatic indexing to realize no-stop production, and therefore, the utility model has the advantages that accessorial working hours can be reduced, production efficiency can be improved, and cost of a single piece can be reduced.

Description

The local awl of multistation gear planetary wheel is an automatic dividing attachment

The utility model " the local awl of multistation gear planetary wheel is an automatic dividing attachment " is a kind of technological equipment that is used for highly-efficient processing polygon workpiece.It is made up of main parts size such as worm gearing, polygon rotary body and a plurality of automatic indexing stations.

A lot of instruments all have the usefulness that a polygonal shank is used for clamping or makes to transmit moment of torsion, are exactly a kind of (shank of this figure is a hexagon) in this class instrument as shown in Figure 5.Processing polygon on the cylinder of tool shank, generally is to adopt dividing head clamping workpiece and calibration on horizontal milling machine, and with two polygonal two planes of symmetry of chip saw-tooth milling cutter milling simultaneously.This processing technology scheme only needs general general frock, and antenatal preparation amount is few, and last detective is used widely in the production of small lot.But the shortcoming of this processing method is manual calibration, processing one by one, and production efficiency is low, and the cost per unit height is not suitable for using in large batch of professional production.

The purpose of this utility model provides a kind of production efficiency, reduction cost per unit that can improve processing polygon workpiece, and the local awl of the novel multi-station gear planetary wheel that adapts to the needs of professional production in enormous quantities is an automatic dividing attachment.

Should " the local awl of multistation gear planetary wheel is an automatic dividing attachment " form by three main parts size such as worm gearing, polygon rotary body and a plurality of automatic indexing stations.Worm gear case is driven the polygon rotary body and is done gyration by motor-driven, and the rotating speed of polygon rotary body that is to say the feed speed of workpiece.Be distributed with a plurality of stations on the circumference of polygon rotary body, each station is made up of parts such as calibration positioning element, planet bevel pinion, revolving sleeve and Workpiece clamping devices.In the part that a bevel gear wheel is equipped with in the shell lower end of worm gear case, the asteroid bevel gear on bevel gear wheel and each station constitutes a planetary motion train.Because bevel gear wheel has only a few tooth, so the planet bevel pinion on each station just can rotate (dividing movement of workpiece) when only running to lower end and bevel gear wheel engagement, each station all is in relative motionless state with rotary body on other position under the effect of latch and index plate.Before asteroid bevel gear and bevel gear wheel engagement generation dividing movement, also has a motion of pulling pin that produces by the calibration navigation system, promptly by the cam that is contained in worm gear case shell lower end, by roller fastening screw is pulled out from the dovetail groove of index plate, at this moment bevel pinion ability and bevel gear wheel enter engagement, also having only latch to extract the back bevel pinion from the locating slot of index plate could rotate, and could realize calibration.After bevel pinion rotates and realizes calibration, by the effect of cam and spring, make latch be inserted in another location dovetail groove on the index plate calibration location of having finished a station so again, make workpiece be in relatively-stationary state again, and rotation is fed into cutting position.Other station is also according to top order: turn round → pull pin → gears engaged calibration → latch locatees these four work tempos and realizes continuous automatic indexing.

From the above mentioned as can be known, this device is: drive the polygon rotary body by worm gearing and rotate with the cutting feed speed, make workpiece realize continuous cutting in the mode of circumferential feeding, realize the rough segmentation degree of workpiece with the engagement of local bevel gear wheel and planet bevel pinion, the accurate location of realizing workpiece by latch and index plate with fix.Wherein " the limit number " of polygon rotary body determined by the station number, and a station is installed on each limit, and the groove number on the index plate is determined by the polygon of workpiece shank, is hexagon as the workpiece shank, and then the dovetail groove on the index plate is six.

Its advantage is: the continuous automatic indexing of energy multistation in working angles, and can in the feeding cutting, carry out artificial loading, unloading workpiece,, realize not shutting down continuously production so can save the non-cutting time of lifting workpiece and calibration, enhance productivity the purpose that reduces cost thereby reach; This device adopts the machine driving reliable operation, the indexing accuracy height, and novel structure is specially adapted to the needs of professional production in enormous quantities in the factory.

Describe an embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the front view (employing is analysed and observe) of present embodiment.

Fig. 2 is that the K of Fig. 1 is to view.It has expressed the Working position (in figure arrow represent rotation direction) of cutter [23] with workpiece [21].

Fig. 3 is the I place enlarged drawing of Fig. 1.

Fig. 4 be pull pin, the motion principle schematic diagram (being the position of pulling pin shown in the figure) of work tempo such as calibration, location.

Fig. 5 is a kind of existing instrument that has the hexagon caudal peduncle, that is to say that the utility model is referred to as a kind of in " workpiece ".

This example is one and has 18 stations, the automatic dividing attachment of processing hexagon workpiece.Its worm gearing drives the rotary body with 18 limit shapes, and 18 stations (structure on each station is all identical) are housed on the periphery of rotary body, and 18 workpiece can be installed.Have from the main parts size of visible this automatic dividing attachment of Fig. 1, Fig. 3: worm gear case [1], right angle sleeve [2], roller [3], square hole fairlead [4], edge cam [5], spring [6], fastening screw [7], local bevel gear wheel [8], holding screw [9], auxiliary stand [10], binding nut [11], swivel sleeve [12], square blind flange [13], screw [14], index plate [15], planet bevel pinion [16], fastening spring cover [17], holding screw [18], copper sliding shaft sleeve [19], junction of the edges of two sheets of paper holding screw [20], workpiece [21], rotary body [22].Fig. 4 has then expressed the relative position of bevel gear wheel [8] with edge cam [5].Cam A section is the lift of pulling pin, and the B section is a gears engaged calibration stroke, and the C section is the latch stroke.The number of teeth on the local bevel gear wheel [8] is recently determined by the transmission of bevel gear planet circular system.Precision six the trapezoidal locating slots that distributing equably on the periphery of index plate [15] are used for the accurate calibration and the location of workpiece.

The structural relation of this device following (seeing Fig. 3, Fig. 4):

Copper sliding shaft sleeve [19] tightly is enclosed within on the small end cylindrical of swivel sleeve [12], and fastening with junction of the edges of two sheets of paper holding screw [20], makes part [19] and part [12] form an integral body.

Planet bevel pinion [16] is sleeved on the cylindrical of swivel sleeve [12], and makes their relative fixed with holding screw [18].Index plate [15] is sleeved on again on the cylindrical of planet bevel pinion [16], also uses holding screw [9] to make their relative fixed.Copper sliding shaft sleeve [19], swivel sleeve [12], planet bevel pinion [16] and index plate [15] have just constituted a gyroaxis rotary part like this.

Square blind flange [13] is installed on the rotary body [22] with screw [14], and the gyroaxis rotary part of above-mentioned composition is installed in the coaxial aperture of square blind flange [13], rotary body [22] formation, endoporus on the big end of swivel sleeve [12] and the square blind flange [13] constitutes a rotary pair, the endoporus that is fastened on copper sliding shaft sleeve [19] and the rotary body [22] on swivel sleeve [12] small end constitutes another rotary pair, so just has been combined into the station of an energy circular index.Have 18 stations on the circumference of rotary body [22].Rotary body [22] be installed in again worm gear case [1] main shaft on, rotate with feed speed by worm and gear transmission drivening piece [22].

Edge cam [5] is fastenedly connected with screw with local bevel gear wheel [8], and the correct relative position between them is seen Fig. 4.The integral body that edge cam [5] and local bevel gear wheel [8] are formed again with screw be fastened on worm gear case [1] shell under, see Fig. 1 or Fig. 3 enlarged drawing.This exemplar [1], part [5], part [8] form a fixing global facility again.

From Fig. 3, also can find out, rotating roller [3] is housed on the right angle sleeve [2], and right angle sleeve [2] decides straight pin together by two and fastening screw [7] connects into an integral body.Square hole fairlead [4] is fastened on by screw in the endoporus of rotary body [22], and spring [6] also is installed in the same endoporus of rotary body [22] with fastening screw [7].Under the effect of edge cam [5] and spring [6], fastening screw [7] can the direction along axial line move back and forth in the hole of rotary body [22].Because the guide effect of part [4] square opening, fastening screw [7] can only moving linearly and can not do gyration.When fastening screw [7] inserted in the location dovetail groove of index plate [15], workpiece [21] fused with rotary body [22], and when fastening screw [7] was extracted from the location dovetail groove of index plate [15], the clamping workpiece parts can make to rotate dividing movement separately.

The operation principle of this device is: lay a general fastening spring cover [17] in the endoporus of swivel sleeve [12], workpiece [21] is installed in the endoporus of part [17], tighten binding nut [11], the effect by the conical surface is shunk the spring clip of part [17], thus clamping work pieces.Auxiliary stand [10] plays a part to strengthen workpiece Cutting Stiffness and axial location.When worm gear case [1] driven rotary body [22] rotates, the workpiece of process cutting position is by two cutter [23] shapings by stock removal of installing relatively, the roller [3] that is on the station of lower end contacts with edge cam [5], lift effect by edge cam A section, fastening screw [7] is extracted from the trapezoidal locating slot of index plate [15], then roller [3] enters into the calibration stroke B section of edge cam [5], at this moment local bevel gear wheel [8] and planet bevel pinion [16] engagement, coupling by big or small Bevel Gear Transmission ratio, make planet bevel pinion [16] turn over 60 ° angle, then roller [3] enters into the latch stroke C section of edge cam [5], fastening screw [7] inserts in the dovetail groove of index plate under the effect of spring [6] at leisure.This process has been finished the calibration and the location action of a station, and each station realizes not shutting down continuously cutting still in continuous rotation in the calibration location.Other station is also successively according to said sequence: turn round → pull pin → gears engaged calibration → latch locatees these four work tempos and realizes continuous automatic indexing.

Claims (3)

1, a kind of by worm gearing, the local awl of the multistation gear planetary wheel that three parts such as polygon rotary body and a plurality of automatic indexing stations are formed is an automatic dividing attachment, it is characterized in that: on the circumference of polygon rotary body, be distributed with a plurality of processing stations, each station partly is made up of calibration navigation system and Workpiece clamping device etc., a station is installed on every limit of this rotary body, and each station is by the asteroid bevel gear, index plate, latch and cam constitute the calibration navigation system, index plate has several calibration location dovetail grooves, the number of calibration location dovetail groove then needs the limit number of cutting forming to determine by the workpiece that is contained on the station, in the shell lower end of this device worm gear case a local bevel gear wheel is housed, bevel pinion on it and each station constitutes a planetary motion train, realize the rough segmentation degree of workpiece with the engagement of local bevel gear wheel and planet bevel pinion, the accurate location of being realized workpiece by latch and index plate is with fixing, wherein " the limit number " of polygon rotary body determined by the station number, a station is installed on each limit, groove number on the index plate is determined by the polygon of workpiece shank, a cam also is equipped with in worm gear case shell lower end, this device system drives the polygon rotary body by worm gearing and rotates with feed speed, by the calibration navigation system and the local bevel gear wheel of each station, the cooperation of cam realizes automatic indexing and location.

2, automatic dividing attachment according to claim 1, it is characterized in that: be in the copper sliding shaft sleeve [19] on each station, swivel sleeve [12], planet conelet tooth [16] and index plate [15] etc. constitute a gyroaxis rotary part, these parts and right angle axle sleeve [2], roller [3], square hole fairlead [4], spring [6], the common calibration navigation system of forming each station such as fastening screw [7].

3, automatic dividing attachment according to claim 2, it is characterized in that: this device is a device with 18 stations processing hexagon workpiece, the working face stroke of its cam [5] is divided into different three sections, locating slot on each station index plate is trapezoidal, and Workpiece clamping device all adopts fastening spring cover [17].

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