CN205520627U

CN205520627U - Square hole mills chuck

Info

Publication number: CN205520627U
Application number: CN201521048756.XU
Authority: CN
Inventors: 张国华
Original assignee: Shanghai Xiwa Precision Machinery Co ltd
Current assignee: Shanghai Xiwa Precision Machinery Co ltd
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2016-08-31
Anticipated expiration: 2025-12-15

Abstract

The utility model discloses a square hole mills chuck, which comprises an outer casing, lip river triangle main shaft is reined in to the setting in the shell body, the backbone mark piece that has cubic hole is opened at the middle part, the setting is on backbone mark piece, the orbit of both sides is supplementary vice down, with rein in the eccentric gear drive shaft who is connected triangle main shaft upper end in lip river, the planet drive gear on eccentric gear drive shaft is established to the cover, the eccentric gear drive shaft direction tapering bearing of setting on eccentric gear drive shaft, two locating pin blind flanges, the teper -shank in eccentric gear drive shaft one end is established to the cover, the cover establish on reining in lip river triangle main shaft and lie in the supplementary vice below of orbit rein in the lip river triangle main shaft end cover that floats, the cover is established on reining in lip river triangle main shaft and is lain in the one -way flat housing who reins in the unsteady end cover below of lip river triangle main shaft, with rein in the connecting sleeve that lip river triangle main shaft lower extreme is connected and set up the directional cover that expands of cutter arbor in the connecting sleeve. The utility model discloses simple structure, drilling accuracy height, commonality are extensively.

Description

A kind of square hole milling chuck

Technical field

This utility model relates to square hole working field, particularly to the square hole milling folder of a kind of processing four square holes Head.

Background technology

At present in world's machining, blind hole processing (the also known as die cavity in four square holes, hexagonal hole and hole, all directions Processing) mainly there is milling cutter successively cyclic process, electric pulse is processed, and through hole mainly has punching press and linear cutter, Which kind of processing is all to lose time very much and high cost.

The blindest processing of square hole is only successively circulated with milling cutter and adds by field of machining Work and electric pulse processing, the wired cutting of square through hole and punch press processing, which kind of processing mode is the most very Lose time so that processing cost remain high.

The device processing four square holes in prior art is typically all according to strangling Lip river triangle (i.e. circular triangle) Principle design, explain as follows as a example by Fig. 1；

In this figure, turn right after 30 degree successively with first Le Lip river triangle just put, the point of triangle The change that point coordinates occurs forms four directions straight path, and the center of triangle also changes occurring；Specifically Simulation drawing is shown in Fig. 2, rotates 30 degree after 12 times successively, (find have four all the time in a foursquare scope Bar line contacts with foursquare four edges respectively, and three somes formation in each edge is straight line, The line central point of (this explanation is strangled Lip river circular arc triangle path in rotary course and taken the air line) triangle exists Square in rotate 12 times with indicate, then with SPL connect after formed by the one of four sub-ellipticals The trajectory that part is formed is square, the square hole milling chuck that reversal design goes out by this principle, And square hole knife bar matches, die cavity holes and the through hole of positive square just can be milled out.

The square hole working of prior art generally there are following defect；

One, the dimensional accuracy of square hole ensures mainly by the precision of molding cutter, and the blade of molding cutter is slightly The most whole the expensive molding cutter that wear and tear is scrapped, the most unworkable in actual machine is processed.

Two, the square opening parallel with the workpiece length of side can only be processed, if need to process one workpiece planarization with The workpiece length of side becomes positive square at any angle, then this covering device can not meet this processing request and condition.

Three, this covering device can be only installed at and is processed on numerically controlled processing equipment, if needed any general Processing on milling machine or drilling machine, this covering device becomes can not meet this condition.

Additionally: the utility model patent of Patent No. 200620048785.0 discloses a kind of square auger and square hole Processing unit (plant), the content recorded by its description, it has following defects that

One, participate in cutting tool all to design to strangle Lip river circular triangle principle with track pad, theoretically may be used To mill out square, but have all the time in actual metal is processed two circular arc intersection point straight lines (point line) with two Arc surface straight line contacts with the four edges in template 7 respectively, in machine tool high speed rotary course, and circular arc three Angle intersecting straight lines can quickly produce abrasion, so that circular arc triangle track pad loses two obligatory points in a template And producing the irregular floating of track pad, cutter 8 damages molding cutter 8 therewith irregular swing, and the side of making Hole dimension precision cannot ensure, in like manner, dimensional accuracy completely by the accuracy guarantee of cutter in machining also Infeasible.

Two, template 7 is only fixed with a fixing bar, and in intermetallic composite coating, main shaft rotates the moment of torsion produced very Make template deviate original coordinate easily, thus produce square hole position degree skew on workpiece and make workpiece report Useless, certainly, if this device is used for processing on wood and being possible, but Material Processing be metal then The most not all right.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of machining accuracy height, low cost, service life Long a kind of square hole milling chuck.

For reaching above-mentioned purpose, the technical solution of the utility model is as follows:

A kind of square hole milling chuck, including:

One shell body；

The Le Lip river triangle main shaft that one is arranged in shell body, described Le Lip river triangle main shaft includes main shaft body, sets Put the Le Lip river gore on main shaft body, be positioned at and strangle the first grip block below the gore of Lip river and position In strangling the second grip block above the gore of Lip river, the first grip block, the second grip block and Le Lip river gore All there is equidistant gap；Described Le Lip river gore and the first grip block and strangle Lip river gore and second Be equipped with three deep groove ball bearings of along the circumferential direction equidistantly distribution in gap between grip block, described deeply Ditch ball bearing and three the end angle equivalent locations strangling Lip river gore are distributed, and its outer side edges is positioned at Le Lip river triangle The outside of shape block three end angle outer side edges；

One main track block, the middle part of described main track block has four square holes, and described main track block is set in Le Luo Outside gore, the structure that the rotary motion trace of described Le Lip river gore is formed just with this four directions hole size Identical；

Being arranged on the track auxiliary pair of the upper and lower both sides of main track block, the middle part of described track auxiliary pair is provided with four Bar limit is the irregular hole of curve, and during work, described upper and lower three deep groove ball bearings are at this in irregular hole Rotate, and make three that strangle Lip river gore to hold between angles and the inwall of main track block four square hole as circular arc mistake Cross, it is to avoid strangle the abrasions at Lip river gore three end angles；

The one Eccentric Gear-drive axle being connected with Le triangle main shaft upper end, Lip river, described Eccentric Gear-drive axle is provided with One eccentric gear deviateed with the Eccentric Gear-drive axle center of circle；

One planet pinion, described planet pinion is set in outside eccentric gear, matches between the two Close and form revolution and rotation, provide with this when strangling the rotary motive power of Lip river triangle main shaft and guarantee revolution by Track turns round；

The one Eccentric Gear-drive spindle guide being arranged on Eccentric Gear-drive axle is to tapering bearing, and it is used for is inclined Heart gearing shaft vertical rotary provides and guides；

A pair of alignment pin blind flange, for shell body is connected with machine body stationary part, so that its Become the Plane reference benchmark of interior angle adjustment structure；

One taper shank being set in Eccentric Gear-drive axle one end, the other end of described taper shank is with machine tool chief axis even Connect；

One is set in the Le Lip river triangle spindle floating end strangled on the triangle main shaft of Lip river and be positioned at below auxiliary track pair Lid, described Le Lip river triangle spindle floating end cap strangles the downforce of Lip river triangle main shaft for carrying；

One is set in the one-way planar strangled on the triangle main shaft of Lip river and be positioned at below the triangle spindle floating end cap of Le Lip river Bearing, the downforce of Lip river triangle main shaft strangled by described one-way planar bearing for carrying；

One branch sleeve being connected with Le triangle main shaft lower end, Lip river, the endoporus of described branch sleeve is for strangling Lip river triangle Shape structure, branch sleeve is used for installing knife bar；

The knife bar orientation expansion set that one is arranged in branch sleeve, the endoporus of described knife bar orientation expansion set is for strangling Lip river three Angular structure, it is for controlling blade on knife bar in the same direction as.

In an embodiment of the present utility model, the outer peripheral face of described main track block is evenly equipped with several straight Tooth.

In an embodiment of the present utility model, described taper shank is the staight shank of band keyway.

In an embodiment of the present utility model, described square hole milling chuck also includes an end cap, described end Lid is arranged between taper shank and double alignment pin blind flange, and it is for carrying out dust-proof for whole internal structure.

In an embodiment of the present utility model, one end of described knife bar is and branch sleeve inner hole Strangling Lip river triangular structure, the other end of knife bar is provided with removable blade.

In an embodiment of the present utility model, described square hole milling chuck also includes an angle adjustment dress Putting, described angular adjustment apparatus is for adjusting the angle of four square holes on main track block, so that square hole milling Chuck can process limit any one with on workpiece planarization and become four square hole at any angle.

In an embodiment of the present utility model, described angular adjustment apparatus includes being opened on shell body six Outer latch that corner apertures engages with main track block straight-tooth and in stretching into hexagon ring in regulating outer latch six Angle spanner.

In an embodiment of the present utility model, described angular adjustment apparatus also includes an outer latch locking dress Putting, described wild card tooth lock device one end is connected with outer latch, and the other end reaches outside shell body.

By technique scheme, the beneficial effects of the utility model are:

This utility model simple in construction, it is high that built-in track auxiliary pair enables to borehole accuracy, and reduces Strangle the abrasions strangling Lip river gore three end angles on the triangle main shaft of Lip river, extend service life；And be additionally arranged Angle regulator, can get out limit any one with on workpiece planarization and become four square hole at any angle；It addition, Using removable taper shank, can process on any universal milling machine or drilling machine, versatility is wide.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below, Accompanying drawing in description is only embodiments more of the present utility model, comes for those of ordinary skill in the art Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is for strangling Lip river 0-330 ° of rotary principle figure of triangle；

Fig. 2 is to strangle the track schematic diagram formed when Lip river triangle 0-330 ° rotates；

Fig. 3 is this utility model sectional view；

Fig. 4 is this utility model structural representation；

Fig. 5 is that this utility model strangles Lip river triangle main axle structure schematic diagram；

Fig. 6 is this utility model part-structure decomposing schematic representation；

Fig. 7 is the structural representation of main track block；

Fig. 8 is the structural representation that track auxiliary is secondary；

Fig. 9 is part-structure schematic diagram of the present utility model.

Numeral and the corresponding component title represented by letter in figure:

10, shell body 20, strangle Lip river triangle main shaft 21, main shaft body 22, strangle Lip river gore 23, First grip block the 24, second grip block 30, main track block 31, four square hole 32, straight-tooth 40, Track auxiliary pair 41, irregular hole 50, Eccentric Gear-drive axle 51, eccentric gear 60, planet Travelling gear 70, Eccentric Gear-drive spindle guide are to tapering bearing 80, double alignment pin blind flange 90, cone Handle 100, strangle Lip river triangle spindle floating end cap 110, one-way planar bearing 120, branch sleeve 130, Knife bar orientation expansion set 140, deep groove ball bearing 150, hexagon ring 160, observation port 170, outer latch Locking device 180, end cap.

Detailed description of the invention

For the technological means making this utility model realize, creation characteristic, reach purpose and be readily apparent from effect Understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.

Participate in shown in Fig. 1 to Fig. 9, the utility model discloses a kind of square hole milling chuck, including shell body 10 put in shell body strangle Lip river triangle main shaft 20, be set in strangle on the triangle main shaft of Lip river main track block 30, It is set in and strangles on the triangle main shaft of Lip river and be positioned at two track auxiliary secondary 40 of the upper and lower both sides of main track block and strangle The Eccentric Gear-drive axle 50 that triangle main shaft upper end, Lip river connects, the planet that is set on Eccentric Gear-drive axle pass Moving gear 60, the Eccentric Gear-drive spindle guide being arranged on Eccentric Gear-drive axle are to tapering bearing 70, use Guide double alignment pin blind flanges 80 of tapering bearing in setting-up eccentricity gearing shaft, be set in eccentric gear biography The taper shank 90 of moving axis one end, it is set in the Le Lip river triangle strangled on the triangle main shaft of Lip river and be positioned at below auxiliary track pair Spindle floating end cap 100, it is set on Le Lip river triangle main shaft and is positioned at below the triangle spindle floating end cap of Le Lip river One-way planar bearing 110 with strangle the branch sleeve 120 that is connected of triangle main shaft lower end, Lip river and the company of being arranged on Knife bar orientation expansion set 130 in female connector cylinder.

Strangle Le Lip river gore 22 that Lip river triangle main shaft 20 includes main shaft body 21, is arranged on main shaft body, It is positioned at the first grip block 23 strangled below the gore of Lip river and is positioned at the second folder strangled above the gore of Lip river Hold block 24, main shaft body 21, Le Lip river gore the 22, first grip block 23 and the second grip block 24 Being structure as a whole, its stability is high, and processing cost is low；First grip block the 23, second grip block 24 and Le All there is between Lip river gore 22 equidistant gap；Strangle Lip river gore 22 and the first grip block 23 with And be equipped with in strangling the gap between Lip river gore 22 and the second grip block 24 and the most equidistantly divide Three deep groove ball bearings 140 of cloth, three deep groove ball bearings 140 and three the end angles strangling Lip river gore 22 Equivalent locations distribution, and its outer side edges respectively is positioned at the outside strangling Lip river gore three end angle outer side edges；Work When making, the seamlessly transitting of three end angles strangling Lip river gore is substituted by six deep groove ball bearings.

Main track block 30 is cylindrical structure, has four square holes 31 in the middle part of it, and main track block 30 is set in Le Outside Lip river gore 22, strangle structure that the rotary motion trace of Lip river gore 22 formed just with this four square hole Size is identical, therefore, strangles and has four obligatory points in this four square hole all the time by about when Lip river gore rotates Bundle smooth rotation.

The middle part of two track auxiliary secondary 40 is equipped with the irregular hole 41 that four edges is curve, itself and six Deep groove ball bearing 140 cooperating, during work, upper and lower three deep groove ball bearings 140 are all irregular at this Rotate in hole 41, strangle Lip river gore three end angle outer side edges owing to its outer side edges of deep groove ball bearing is positioned at Outside, deep groove ball bearing 140 first assists the hole wall in the irregular hole 41 of secondary 40 to contact, the most just with track Making well three that strangle Lip river gore to hold between angles and the inwall of main track block 30 4 square hole is arc transition, So can avoid strangling and produce abrasion between Lip river gore three end angle and the inwall of four square holes and make Le Luo Triangle main shaft loses constraint in high-speed rotation, affects machining accuracy.

Eccentric Gear-drive axle 50 is provided with the eccentric gear 51 of one and the deviation of the Eccentric Gear-drive axle center of circle, partially The diameter of heart gear 51 is less than planet pinion 60, eccentric gear 51 and both planet pinions 60 Between match formation revolution and rotation, provide with this and strangle the rotary motive power of Lip river triangle main shaft and guarantee Track revolution is pressed during revolution.

Eccentric Gear-drive spindle guide is used for providing for Eccentric Gear-drive axle vertical rotary leading to tapering bearing 70 To.

Double alignment pin blind flanges 80 are for regulating the degree of tightness of whole device enclosure interior outside in applicable dynamics Make whole device even running, and provide installation site for Eccentric Gear-drive spindle guide to tapering bearing, in method Being also equipped with two alignment pins (not marking in figure) on blue face, it is connected with machine tool chief axis end stationary part, So that package unit (in addition to Eccentric Gear-drive axle is with Le Lip river triangle main shaft) is in position degree stationary state.

The other end of taper shank 90 is connected with machine tool chief axis, and in order to adapt to the requirement of different machines, taper shank is permissible Being set to any universal architecture, this utility model taper shank is the staight shank of diameter 25 band keyway after pulling down.

Strangle Lip river triangle spindle floating end cap 100 for carrying the downforce strangling Lip river triangle main shaft, one-way planar axle Hold 110 downforce being also used for carrying Le Lip river triangle main shaft；Ensure that the stability of entirety, improve processing Precision.

The endoporus of branch sleeve 120 is for strangling Lip river triangular structure, and branch sleeve is used for installing knife bar, makes knife bar It is indirectly connected with strangling Lip river triangle main shaft, keeps whole processing structure to orient.

This utility model knife bar orientation expansion set 130 is unlike common expansion set, and the endoporus of common expansion set is round , and the endoporus of this utility model knife bar orientation expansion set is to strangle Lip river triangle, it is intended that control on knife bar Blade in the same direction as, i.e. keeps being always same with the end points strangling Lip river gore strangling on the triangle main shaft of Lip river One direction.

In order to process four square holes of different angles, this utility model is at the outer peripheral face of main track block 30 On be evenly equipped with several straight-tooth 32, and in shell body, be provided with angular adjustment apparatus (being not drawn in figure), Angular adjustment apparatus is for adjusting the angle of four square holes on main track block, so that square hole milling chuck can add Work goes out limit any one with on workpiece planarization and becomes four square hole at any angle, and angular adjustment apparatus includes being opened in Outer latch that on shell body, hexagon ring 150 engages with main track block straight-tooth and in stretching into hexagon ring for adjusting Save the inner hexagon spanner of outer latch；During use, by inserting inner hexagon spanner at hexagon ring 150, and rotate Spanner drives wild card tooth spiral to turn, and wild card cingulum moves main track block and rotates, after the angular transformation of main track block, Four square holes being processed to form angle on workpiece planarization also can change.

For the ease of the range of accommodation of viewing angle, shell body is offered observation port 160, and at track The outer circumference surface subscript high scale that auxiliary is secondary, is changed by the scale in observation port viewing track auxiliary pair Know the scope of regulation；In order to play dustproof effect, observation port is provided with clear glass.

In order to lock the angle adjusted, this utility model is also provided with the locking of outer latch in shell body Device 170, wild card tooth lock device one end is connected with outer latch, and the other end reaches outside shell body, when After angle adjustment completes, wild card tooth lock device is advanced inside shell body, and withstand outer latch and be allowed to fixing ?；When extracting wild card tooth lock device out shell body, i.e. rotatable inner hexagon spanner is adjusted to the angle needed Degree.

In order to improve the dust reduction capability of whole device, end cap is being set between taper shank and double alignment pin blind flange 180, dust the most just can be stoped to enter inside device between taper shank and double alignment pin blind flange.

One end of this utility model knife bar is the Le Lip river triangular structure with branch sleeve inner hole, knife bar The other end of (being not drawn in figure) is provided with removable blade, and knife bar has only to one, after blade abrasion only Need allowing blade replacement, greatly save the cost purchasing nonstandard square hole working cutter.

Of the present utility model ultimate principle and principal character and of the present utility model excellent have more than been shown and described Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned reality Execute and principle of the present utility model is simply described, without departing from this utility model spirit described in example and description On the premise of scope, this utility model also has various changes and modifications, and these changes and improvements both fall within In the range of claimed this utility model.This utility model claims scope by appending claims And equivalent defines.

Claims

1. a square hole milling chuck, it is characterised in that including:

One shell body；

A kind of square hole milling chuck the most according to claim 1, it is characterised in that described backbone mark Several straight-tooth it are evenly equipped with on the outer peripheral face of block.

A kind of square hole milling chuck the most according to claim 1, it is characterised in that described taper shank is Staight shank with keyway.

A kind of square hole milling chuck the most according to claim 1, it is characterised in that described square hole milling Cut chuck and also include that an end cap, described end cap are arranged between taper shank and double alignment pin blind flange, its be used for be Whole internal structure carries out dust-proof.

A kind of square hole milling chuck the most according to claim 1, it is characterised in that described knife bar One end is the Le Lip river triangular structure with branch sleeve inner hole, and the other end of knife bar is provided with removable cutter Sheet.

A kind of square hole milling chuck the most according to claim 2, it is characterised in that described square hole milling Cut chuck and also include that an angular adjustment apparatus, described angular adjustment apparatus are used for adjusting four square holes on main track block Angle so that square hole milling chuck can process limit any one with on workpiece planarization becomes arbitrarily angled Four square holes.

A kind of square hole milling chuck the most according to claim 6, it is characterised in that described angle is adjusted Engagement positions includes being opened in outer latch that on shell body, hexagon ring engages with main track block straight-tooth and stretches into six For regulating the inner hexagon spanner of outer latch in corner apertures.

A kind of square hole milling chuck the most according to claim 7, it is characterised in that described angle is adjusted Engagement positions also includes that a wild card tooth lock device, described wild card tooth lock device one end are connected with outer latch, separately One end reaches outside shell body.