CN2089388U

CN2089388U - Index head for drilling

Info

Publication number: CN2089388U
Application number: CN 91203186
Authority: CN
Inventors: 刘国鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-07
Filing date: 1991-03-07
Publication date: 1991-11-27

Abstract

The utility model relates to an index head for drilling. The utility model comprises a base plate 1, a support frame 2, a main shaft 3, a shaft sleeve 4, a latch frame 7, a latch body 8 and a locking block 10. The utility model is characterized in that a cross shaft 5 and an index plate 6 are arranged on the index head for drilling, the cross shaft comprises the main shaft sleeve and a support frame shaft, the support frame shaft is perpendicular to the main shaft sleeve, 2-5 lines of latch holes 12 are uniformly and vertically arranged on the outer circumference of the index plate 6 axially, the number of the latch holes of each line is different, and the angles of the lines of latch holes 12 distributed on the circumference of the index plate 6 are respectively 72 DEG, 60 DEG, 45 DEG, 36 DEG and 30 DEG. The utility model can make various index holes on the flange type workpieces and the shaft annular type workpieces, and the utility model has the advantages of high efficiency, good compatibility, durable precision and no need of the drilling jig.

Description

Index head for drilling

The utility model relates to the apparatus field that makes cutter or workpiece accurately be positioned specific position, particularly boring dividing head.

What the boring aspect was used to produce in batches at present is drill jig boring and line boring, and wherein the efficient of line boring is minimum, and accuracy and interchangeability are all bad; When using drill jig, the technological requirement height of the processing and fabricating of drill jig own also is that the processing of model drilling body need be with high-precision index dial on milling machine or boring machine processing, and drill bushing needs process on inside and outside round grinding machine, during use or drill bit look for mould (radial drill); Or mould looks for drill bit (bench drill or big vertical drill), and particularly a drill jig only is used for a kind of parts, and therefore, parts need be used many moulds for a long time, and are time-consuming, the processing cost height.

The utility model purpose is: a kind of novel boring dividing head is provided, and the efficient height when this dividing head is made index hole on flange-type and axle collar type can carry out horizontal and vertical boring, and interchangeability is good, and precision is lasting, does not need drill jig.

The purpose of this utility model reaches like this, and index dial that this boring dividing head is had can make multiple halving hole and the cross axle that can rotate just can make a novel purpose reach fully.

Below in conjunction with accompanying drawing the utility model is elaborated.

The schematic diagram that accompanying drawing 1 is this novel boring dividing head when horizontal.

The schematic diagram that accompanying drawing 2 is these novel boring dividing heads when vertical.

Accompanying drawing 3 is schematic diagrames of cross axle.

Accompanying drawing 4 is index dial schematic diagrames.

The schematic diagram that attached Fig. 1 and 2 is respectively this novel boring dividing head when horizontal and vertical.From this accompanying drawing as seen, this dividing head is made up of chassis 1, support 2, main shaft 3, axle sleeve 4, cross axle 5, index dial 6, latch frame 7, latch body 8, chuck 9, latch segment 10.Wherein, this new index head is characterised in that: well-designed cross axle 5 and index dial 6, now be respectively described below: cross axle 5 detail drawings are seen accompanying drawing 3, it has collar bush and perpendicular and be provided with support shaft, latter's diameter is more less than the former, and cross axle, and can rotate on support 2 on support 2 with its support pedestal, therefore, this dividing head can make horizontal or vertical boring.The collar bush of cross axle and chuck 9 centers are on same straight line, main shaft 3 and axle sleeve 4 are arranged within the collar bush of cross axle 5, be a cylindrical shape in support 2 two side-prominent parts, four grooves that are mutually the right angle are arranged at the edge of one of this cylindrical shape ledge, it is consistent with the degree of depth that this groove is carved cross latch segment groove 13 shapes with the support axle head of cross axle 5, can put into latch segment 9 therein, be provided with the mortise lock frame 7 parallel in a side of cross axle 5 with main shaft 3, have perpendicular mortise lock body 8 at this mortise lock frame front end, these latch body 8 front ends are tapers, can insert in the pin hole 12 of index dial 6, cylindrical shape index dial 6(sees accompanying drawing 4) be loaded on the main shaft 3, relative with chuck 9, evenly arranged vertical becomes 2～5 row on said index dial excircle is axial, every row has the different pin hole of number 12, and each row pin hole residing angle on index dial 6 circumference is respectively 72 °, 60 °, 45 °, 36 ° and 30 °, the awl of pin hole 12 is than being 1:50.Index dial 6 also can be done two, an index dial commonly used evenly distributed 3 row pin holes on the cylindrical short transverse, and the angle that triplex row pin hole 12 distributes on index dial 6 circumference is respectively 60 °, 45 ° and 30 °; The standby index dial of another piece excircle two axially on even arranged vertical 2 row pin holes, the angle that 2 row pin holes 12 distribute on index dial 6 circumference is respectively 72 ° and 36 °.

As shown in Figure 1, chuck 9 is in the first side of calibration to the utility model boring dividing head when horizontal, and folded workpiece can be subjected to the processing of the horizontal drill bit of side; When chuck 9 is turned to upside by cross axle 5, promptly become vertical boring dividing head, shown in Figure 2 as team, chuck 9 folded workpiece can be subjected to the processing of vertical drill bit, and therefore, this novel boring dividing head can be holed on level and vertical two directions.Two support shafts of cross axle 5 are supported by support 2, are welded with chassis 1 under the support, and chassis 1 can be fixed on the drilling machine.When cross axle 5 forwards to when horizontal or vertical, latch segment 9 is put into the latch segment groove, make the fixed-site of chuck 9 and index dial 6 after, can hole.

Index dial 6 is cylindrical shapes, is weight reduction, and the outside, middle part hollows out a part, shown in accompanying drawing 1 and 4.When the angle that distributes on index dial 6 circumference when pin hole was 60 °, this dividing head can get out 2,3 and 6 halving holes, when angle is 72 °, can get out 5 halving holes; When angle is 45 °, can get out 2,4 and 8 halving holes; When angle is 36 °, can get out 10 halving holes; When angle is 30 °, can get out 2,3,4,6,12 halving holes.Accompanying drawing 4 be have 4 the row halving holes example, on this figure each the row calibration starting point be located on the same straight line.

The utility model boring dividing head can make several series by component sizes, can get out halving hole commonly used on flange-type in 40～500 millimeters of Φ and axle collar type parts.

This novel boring dividing head can make workpiece directly hole with dividing head rotation calibration on level and vertical two directions.Before processing, only need to mark a centre-to-centre spacing point accurately, but gone down since second with regard to on-line operation at initial workpiece.In use, this dividing head is fixed on the Drilling machines bench by workpiece hole centre-to-centre spacing, drill bit aligns the centre-to-centre spacing point that initial workpiece has been made, can wait branch borehole by required.

This new series boring dividing head to flange-type, can be removed the various drill jig of product specification from during the boring of parts such as axle collar type, thereby can save material and the processing charges of making drill jig; Assembling interchangeability to parts is good; Use extensively; The halving precision exactness is between ± 0.05～± 0.1 millimeter; And precision is lasting; Therefore high efficiency, quality are good.Superiority from following this dividing head more as can be known: each hour can be bored 5 work with 8 hole drill moulds originally; And can bore 10 work that precision is high with this dividing head, and work efficiency doubles, and afterwards, a student lives to above-mentioned same worker with this dividing head and processed 120 in 7 hours.

Claims

1, the boring dividing head, has chassis 1, support 2, main shaft 3, axle sleeve 4, latch frame 7, latch body 8, chuck 9, latch segment 10, it is characterized in that: well-designed cross axle 5 and index dial 6, said cross axle 5 has collar bush and perpendicular and be provided with support shaft, latter's diameter is more less than the former, cross axle with its support pedestal on support 2, and can on support 2, rotate, the collar bush of cross axle 5 and chuck 9 centers are on same straight line, main shaft 3 and axle sleeve 4 are arranged within the collar bush of cross axle 5, be a cylindrical shape in support 2 two side-prominent parts, four grooves that are mutually the right angle are arranged at the edge of one of this cylindrical shape ledge, it is consistent with the degree of depth that this groove is carved cross latch segment groove 13 shapes with the support axle head of cross axle 5, can put into latch segment 9 therein, be provided with the mortise lock frame 7 parallel in a side of cross axle 5 with main shaft 3, have perpendicular mortise lock body 8 at this mortise lock frame front end, these latch body 8 front ends are tapers, can insert in the pin hole 12 of index dial 6, cylindrical shape index dial 6 is loaded on the main shaft 3, relative with chuck 9, evenly arranged vertical becomes 2～5 row on said index dial excircle is axial, every row has the different pin hole of number 12, each row pin hole residing angle on index dial 6 circumference is respectively 72 °, 60 °, 45 °, 36 ° and 30 °, the awl ratio of pin hole 12 is 1: 50.

2, according to the said boring dividing head of claim 1, it is characterized in that: said index dial 6 also can be done two, an index dial commonly used even arranged vertical 3 row pin holes excircle is axial, the angle that triplex row pin hole 12 distributes on index dial 6 circumference is respectively 60 °, 45 ° and 30 °; The standby index dial of another piece is even arranged vertical 2 row pin holes excircle is axial, and the angle that 2 row pin holes 12 distribute on index dial 6 circumference is respectively 72 ° and 36 °.