CN101342665A

CN101342665A - Drill milling and cutting edge grinder and chucking tools

Info

Publication number: CN101342665A
Application number: CNA2008100554793A
Authority: CN
Inventors: 高闻汰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-26
Filing date: 2008-07-26
Publication date: 2009-01-14
Anticipated expiration: 2028-07-26
Also published as: CN100574987C

Abstract

The invention relates to a drill cutter grinding machine and a fixture. An adjustable column in a fine turning machine is arranged on the outside of a grinding disk. The upper end of the grinding disk is provided with a pointer, and the lower end is articulated with the column shaft. A fixing column is arranged on the inner side the grinding disk. The upper ends of the two columns are connected with each other through a fine turning bolt. One end of the mobile platform on the operating platform is articulated with an adjustable sleeve through a fastening screw. The adjusting high gear inside the mobile platform is meshed with the rack on the adjustable column. The adjustable lever on the lower part of the mobile platform is movably connected with a regulating plate. The mobile platform is also provided with a slideway. A movable platform is arranged on the slideway. The fixing board of a fixture seat is arranged on the movable platform. And the upper part of the movable platform is also provided with the fixture seat. A vertical shaft is arranged on one side of the fixture seat. The upper part of the vertical shaft is articulated with a fixture pressure plate. The inner side of the vertical shaft seat on the lower part of the vertical shaft is provided with a pitch regulating gear. The grinding machine has simple structure, high grinding precision and less grinding times, which can prolong the service life of the cutter and improve the working efficiency. The special fixture matched with the grinding machine has great locking force and wide application.

Description

Drill cutter blade milling machine and jig

Technical field

The present invention relates to a kind of grinding tool, specifically a kind of drill cutter blade milling machine and jig.

Background technology

The method of tradition grinding milling cutter and drill bit, it is exactly manual grinding, blade or drill bit are leaned against on the emery wheel, rely on the masterful technique gimmick and accurately eyesight finish, this grinding technique is difficult for grasping, and needs long-time study of workman and exercise, and grinding accuracy is low, cause the machining accuracy of workpiece low, speed is slow, and also has following defective:

1, low-angles such as the anterior angle of drill bit cutting edge, sharp angle be difficult for to be grasped, and can cause can not drilling or tipping easily;

2, main cutting edge is asymmetric, and cutting edge is uneven, because unbalance stress causes processing parts to produce vibrations, strengthens the wearing and tearing of cutter and part during work, and machining accuracy is low;

3, chisel edge departs from drill bit central axis, and the boring surface precision is low, and the hole is biased to be moved, and influences the workpiece crudy;

4, grinding is firmly uneven or improper, causes that cutting edge is overheated, annealing etc., influence cutter and workpiece quality, aggravates the wearing and tearing of cutter, shortens its service life.

Summary of the invention

In order to solve the problem that existing grinding technique falls behind, the present invention one provides a kind of grinding accuracy height, drill cutter blade milling machine simple in structure; Two provide a kind of jig that is used with this drill cutter blade milling machine.

By realizing the foregoing invention purpose by the following technical solutions: this drill cutter blade milling machine, comprise abrasive machine, grinding wheel, also comprise grinding attachment, micromatic setting and operating platform, wherein:

A, described grinding attachment comprise large and small two abrasive machines, and big abrasive machine is fixed on the base, and little abrasive machine places big abrasive machine top;

Adjustable column in b, the described micromatic setting places the grinding wheel outside, its upper end is provided with pointer, the lower end is hinged with the column axle that is fixed on the column axle sleeve inside that is provided with opening on the base, vertical columns is positioned at the grinding wheel inboard, its lower end also is fixed on the base, its upper end is connected with scale plate, and two columns upper end connects with trimming bolt, and the nut side of this trimming bolt is provided with the angle-differentiated dish;

C, mobile platform one end in the described operating platform is hinged by holding screw and tuneable bushing, this tuneable bushing is socketed on the adjustable column, the gear of heightening of its inside is meshed with tooth bar on the adjustable column, the mobile platform below is connected with adjusting rod, this adjusting rod flexibly connects by connector with the adjustable plate that is fixed on adjustable column middle part, slideway also is housed on the mobile platform, movable platform is equipped with in the slideway top, its inside is provided with leading screw, jig seat fixed head is loaded on the movable platform, the jig seat also is equipped with in its top, jig seat one side is equipped with vertical shaft, the vertical shaft upper end is hinged with the jig pressing plate, and the roll adjustment gear is equipped with in the vertical shaft seat inboard of vertical shaft bottom, and jig seat opposite side also is equipped with the angle modulation bolt.

With the jig that the drill cutter blade milling machine is used, its outside all is socketed with the propelling sleeve pipe, is equipped with screw thread on the inside and outside wall of this propelling sleeve pipe.

Compared with prior art, the invention has the beneficial effects as follows: this drill cutter blade milling machine is simple in structure, easy to operate, the grinding accuracy height is difficult for annealing, reduce the sharpening number of times, improve cutter life and operating efficiency, be mated the special jig of use, coupling mechanism force is big, adjustability is strong, wide application.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present invention.

Fig. 2 is the operating platform structural representation.

Fig. 3 is an operating platform part-structure schematic top plan view.

Fig. 4 is the drill holder structural representation.

Fig. 5 is that the A-A of Fig. 3 is to view.

Fig. 6 is that the B-B of Fig. 3 is to view.

Fig. 7 is a taper shank jig structural representation.

Fig. 8 is a staight shank jig structural representation.

The specific embodiment

The invention will be described further below in conjunction with drawings and Examples.

Referring to accompanying drawing 1,2,3, in the present embodiment, grinding attachment of the present invention, micromatic setting and operating platform, wherein:

Described grinding attachment is made of big abrasive machine 7, little abrasive machine 6, grinding wheel and base 13, and big abrasive machine 7 is fixed by bolts on the base 13, and little abrasive machine 6 is fixed by bolts to the top of big abrasive machine 7, and grinding wheel all is housed on two abrasive machines.

Described micromatic setting is made of adjustable column 1, scale plate 2, pointer 3, vertical columns 4, trimming bolt 5, stage clip 8, set screw 10, boom shaft 11 and pillar axle sleeve 12.Vertical columns 4 places the inboard of grinding wheel, and its lower end is fixed on the base 13, and its upper end is fixedly connected with a scale plate 2, and scale plate 2 surfaces are provided with scale; Adjustable column 1 is erected in the outside of big abrasive machine 7 grinding wheels, there is pointer 3 its upper end with bolting, its lower end and boom shaft 11 are hinged, boom shaft 11 outer cover are connected to and are fixed on the pillar axle sleeve 12 that a side on the base has opening, and its opening part connects with set screw 10, and boom shaft 11 also is fixed on the base 13, the upper end of adjustable column 1 and vertical columns 4 is connected with trimming bolt 5, be socketed with stage clip 8 on its screw rod, its nut adopts wing nut, and the nut side is provided with angle-differentiated dish 33.

Described operating platform is by mobile platform 9, tuneable bushing 14, tooth bar 15, locking nut 16, holding screw 17, adjusting rod 18, adjustable plate 19, jig seat fixed head 20, movable platform 21, crank 22, leading screw 23, depression bar 24, depression bar screw 25, buting iron 26, angle modulation bolt 27, jig seat 28, jig pressing plate 29, vertical shaft 30, vertical shaft seat 31, slideway 32, heighten gear 34, roll adjustment tooth rest 35, roll adjustment gear 36, recliner brackets 37 constitutes, wherein: an end of mobile platform 9 flexibly connects by holding screw 17 and tuneable bushing 14, this tuneable bushing 14 is socketed on the adjustable column 1, what its inside was provided with band tooth pedestal heightens gear 34, tooth bar 15 on this is heightened gear 34 and is located at adjustable column 1 is meshed, and the locking nut 16 of tuneable bushing 14 outsides can be regulated the degree of tightness gap between tuneable bushing 14 and the adjustable column 1; One end of the below of mobile platform 9, close adjustable column 1 is provided with mobile platform 9 and is the adjusting rod 18 of one, the middle part of adjustable column 1 is welded with the adjustable plate 19 of a band bar-shaped trough, the lower end of adjustable plate 19 and adjusting rod 18 links together by its bar-shaped trough with bolt, on the screw rod of bolt spring is housed; Mobile platform 9 is provided with the slideway 32 of a swallowtail shape, band dove-tail track is equipped with in the top of this slideway 32, the movable platform 21 that can move along this slideway 32, be provided with drift between the slideway 32 of movable platform 21 1 sides and the dovetail groove track, on a side side of the outside of movable platform 21, be connected with bolt, bolt is held out against drift be used for fixing movable platform 21, leading screw 23 is arranged on the below of movable platform 21, slideway 32 tops, the two ends of leading screw 23 are fixed on the two ends of slideway 32, middle spin with the nut that is located at below the movable platform 21, the one end is equipped with crank 22.One end of movable platform 21 is provided with depression bar 24, pass depression bar 24 middle parts and be provided with depression bar screw 25, jig seat fixed head 20 is placed on the movable platform 21, jig seat fixed head 20 tops are provided with jig seat 28, jig seat 28 tops are threaded semi-circular groove, its sidepiece is provided with tooth bar, be fixed with vertical shaft seat 31 in jig seat fixed head 20 1 sides, its inside is connected with vertical shaft 30, the upper end of this vertical shaft 30 also is hinged with jig pressing plate 29, vertical shaft seat 31 1 sides are equipped with roll adjustment tooth rest 35, roll adjustment gear 36 is equipped with connecting axle in these roll adjustment tooth rest 35 inside, the opposite side of movable platform 21 is provided with recliner brackets 37, the two ends of this recliner brackets 37 are connected with angle modulation bolt 27, and jig seat 28 is withstood in angle modulation bolt 27 ends, also are provided with a buting iron 26 on movable platform 21, this buting iron 26 is fixed on recliner brackets 37 1 sides, the position that is used to limit jig seat 28.Jig is revolving on the jig seat 28 after distance that three-sixth turn moves revolves three-sixth turn with trimming bolt 5, and it is equal that adjustable column 1 drives the distance that jig moved.

In the present embodiment, drill holder, taper shank jig and staight shank jig are arranged with the matching used special jig of the present invention, wherein:

Shown in the accompanying drawing 4～6 is drill holder, advance on sleeve pipe 38 inside and outside walls and be equipped with screw thread, its inwall two ends are positive left-hand thread, its two ends also are provided with it and are the back-up ring of one, two locking sleeves 39 are contained in and advance sleeve pipe 38 inside, and this two locking sleeve 39 is respectively positive and negative screw thread, and the one end also is provided with and is located at two gap that the chute at V-shaped groove 40 two ends matches, and this V-shaped groove 40 is contained in the gap.

Taper shank jig shown in the accompanying drawing 7, it advances the outside of sleeve pipe 38 identical with drill holder, and with taper shank sleeve pipe 41 be one, its afterbody also is provided with to push up and unloads screw 42.

Staight shank jig shown in the accompanying drawing 8, it advances the inboard of sleeve pipe 38 to be provided with the screw thread of back-up ring and same rotation direction, its external structure is identical with propelling sleeve pipe 38 structures on the drill holder, the screw thread in the outside of its taper shank sleeve pipe 41, spin with advancing sleeve pipe 38, its afterbody also is provided with the top and unloads screw 42, and the outside of staight shank sleeve pipe 43 is taper, its two ends are provided with open seam, and this staight shank sleeve pipe 43 places in the taper shank sleeve pipe 41.

Various jigs are all made many covers according to the model of cutter, are suitable for so that be suitable for the cutter of various models.

The using method of the present invention and special jig is as follows:

1, jig:

1. drill holder: straight shank drill or long taper-shank drill are put between two V-shaped grooves 40, and rotation advances sleeve pipe 38, tightens drill bit under the effect of locking sleeve 39.

2. taper shank jig: taper-shank cutter or short taper-shank drill are put into its inner taper shank sleeve pipe 41, get final product grinding after fixing, screw 42 is unloaded on the rotation top, can unload bottom tool.

3. staight shank jig: straight shank milling cutter or short straight shank drill are put into its inner staight shank sleeve pipe 43, the two is put into taper 41 together after, in that whole precession is advanced in the sleeve pipe 38, can tighten cutter, rotation is pushed up and is unloaded screw 42, can unload bottom tool.

2, blade milling machine:

Unclamp set screw 10, make two adjustable pillar 1 relative motions to ideal position, gear 34 is heightened in rotation, after drive whole operation platform moves vertically to proper height, tightening set screw 10 is fixed, unclamp holding screw 17, rotate the wing nut on the adjustable plate 19, forward to after the required angle whole operation platform fixing; Jig seat fixed head 20 is placed on the movable platform 21, be close to buting iron 26, after compressing with depression bar 24, tightening depression bar screw 25 is fixed, jig seat 28 is placed on the jig seat fixed head 20, the jig of again clamping being treated the sharpening mouth is placed on the jig seat 28, the annular retaining ring of propelling sleeve pipe 38 front ends leans against the front end of jig seat 28, rotate the lateral attitude of angle modulation bolt 27 on recliner brackets 37, regulate its angle, then by regulating the position of engagement of roll adjustment gear 36 and jig seat 28 sidepiece tooth bars, regulate the front and back position of jig seat 28, make milling cutter or drill bit near grinding wheel, but do not contact grinding wheel, with angle modulation bolt 27 that jig seat 28 is fixing then.By regulating the upright position of vertical shaft 30 in vertical shaft seat 31, make jig seat 28 consistent with the jig height, driving leading screw 23 by rotation crank 22 rotates, movable platform 21 is moved horizontally on slideway 32, drill bit and milling cutter level modulation correct position, bolt with slideway 32 outsides holds out against the interior drift of movable platform 21 bottom chutes subsequently, and locking movable platform 2 is fixed it on slideway 32.

After mixing up the position of operating platform each several part, open big abrasive machine 7, pin jig pressing plate 29 gently on the other hand, the slow with one's hands slow rotary fine adjustment bolt 5 of another makes cutter contact grinding wheel, stops to screw trimming bolt 5, by rotary fixture cutting edge is carried out grinding repeatedly.After one cutting edge grinding finishes, write down the angle numerical value of pointer 3 on sensing position on the scale plate 2 and trimming bolt 5 sides, instead twist trimming bolt 5 then, make cutter return an end distance from, rotary fixture to the next one is treated the salty multiple above-mentioned method for grinding of sharpening, and other cutting edge is carried out grinding.

According to the number of sharpening cutter needs grinding cutting edge, the angle of trimming bolt 5 is rotated 120 degree or 180 degree or 90 degree etc. as required.As: when sharpening drill bit and two blade milling cutters, second cutting edge will be milled to the progress value on the rule, equals 1/2nd pitch that first cutting edge progress numerical value deducts trimming bolt 5; And equaling the angle of first cutting edge, the numerical value on the angle-differentiated dish 33 deducts 180 °.During sharpening three blade milling cutters, then be to deduct 1/3rd pitch and 120 °; During sharpening four blade milling cutters, then be to deduct 1/4th pitch and 90 °, by that analogy.

Generally speaking, when the grinding milling cutter, earlier between two cutting edges, grind one groove with the little grinding wheel on the little abrasive machine 6, and then to the big abrasive machine 7 the sharpening mouth; And drill bit is first sharpening mouth on big abrasive machine 7, again web thinning to the little abrasive machine 6.

Claims

1, a kind of drill cutter blade milling machine comprises abrasive machine, grinding wheel, it is characterized in that, also comprises grinding attachment, micromatic setting and operating platform, wherein:

2, the jig that is used of the described drill cutter blade milling machine of a kind of and claim 1, it is characterized in that: the outside of described jig all is socketed with the propelling sleeve pipe, is equipped with screw thread on the inside and outside wall of this propelling sleeve pipe.