CN2369804Y

CN2369804Y - Cutter mechanism for worm working

Info

Publication number: CN2369804Y
Application number: CN 99231100
Authority: CN
Inventors: 王永明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-08
Filing date: 1999-03-08
Publication date: 2000-03-22
Anticipated expiration: 2009-03-08

Abstract

The utility model discloses a cutter mechanism for processing worms, which is mainly composed of a cutter head, a double-spring cutter handle (1), etc. A cutter slot on the cutter handle (1) is arranged into a double-knife cutter slot (2) with a wide body, and a pair of slot cutting cutter heads (6) which are separated from each other by a screw pitch and a shaping cutter head (7) are ranged in the cutter slot in parallel. The upper part and both sides of the cutter handle are provided with double-locking screw nails, and an auxiliary fixed cutter handle (5) perpendicular to the longitudinal axis of the cutter handle is arranged on the middle part of one side of the cutter handle. The utility model has the advantages of simple structure and simple and convenient operation. The utility model can be operated by one time to complete coarse and fine turning processes. Compared with the traditional single-knife cutters, the work efficiency of processing worms is improved by almost 30 times in the utility model. Besides, the processing accuracy of worms are high, and the processing quality of worms is good.

Description

Worm screw tool mechanism

The utility model belongs to mechanical turning processing unit (plant), is specifically related to a kind of double-pole and directly advances the cutter mechanism that the method machining worm is adopted.

Worm screw is the universal machine drive disk assembly that often adopts in various machineries, instrument, the equipment, and is easy to wear, so worm screw processing is one of the most normal work that runs in machined and the repairing trades.The processing method of worm screw is a lot, and technologies such as turning, milling, whirlwind mill, roll extrusion, grinding all can be used to machining worm.But for small lot batch manufacture particularly for the single-piece production, adopt turning processing more than at present.Because the profile of tooth of worm screw is bigger, the turning amount is big, yielding, vibration even knife, forge a knife, thus adopt common turning process machining worm production efficiency low, and chip removal has some setbacks, and machining accuracy and the surface roughness of worm screw are wayward.Traditional worm screw method for turning has grooving method, ladder sword worm screw lathe tool processing method and layering left and right sides cutting method etc., but all exists many weak points.Low such as the turning process efficient that has, tool wear is big, need repeatedly change lathe tool; The shape of tool processing reconditioning difficulty that has is big, and the workpiece machining accuracy is difficult to guarantee.The design people repeatedly practises through concentrating on studies for many years for this reason, has developed a kind of double-pole cutter mechanism that worm screw directly advances method processing usefulness that is suitable for, and through this cutter mechanism reliable operation of evidence, not only machining accuracy height, and processing work efficiency has improved tens of times.

It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and the cutter positioning is quick, the machining accuracy height, and the worm screw that can improve working (machining) efficiency effectively directly advances method processing double-pole cutter mechanism.

The utility model is achieved in that it mainly partly is made up of cutter head and dual spring handle of a knife etc.The cutter groove of handle of a knife is set to double-pole expanded letter cutter groove, and a grooving cutter head and a moulding cutter head wherein are installed; The left and right sides of cutter groove is respectively equipped with the tight adjustment screw of twin-lock, and the lock-screw on top also is set to the tight screw of twin-lock; Middle side part at handle of a knife also is provided with an auxiliary fixedly handle of a knife perpendicular to its longitudinal axis.

Double-pole cutter mechanism of the present utility model with the hilted broadsword of conventional worm processing technology repeatedly turning change a parallel turning of double-pole into, yielding when having overcome with traditional turning cutting tool mechanism machining worm, cutter is vibration even knife, the drawback of forging a knife easily.Once adorn cutter and can finish rough turn, finish turning two procedures, improved working (machining) efficiency greatly, on average improve nearly 30 times of work efficiency.Not only little to the wearing and tearing of cutter, reduced many troubles such as changing, grind, adorn cutter, reduced working strength of workers, and the machining accuracy of worm screw improves greatly also.

Below in conjunction with accompanying drawing and embodiment the utility model is further described, but the utility model is not limited to shown in the accompanying drawing.

Fig. 1 is the front view of the utility model double-pole cutter mechanism handle of a knife;

Fig. 2 is the left view of figure;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is that the AA of Fig. 1 is to cutaway view;

Fig. 5 is that the BB of Fig. 3 is to cutaway view;

Fig. 6 is the cutting image of the utility model double-pole cutter mechanism machining worm;

Fig. 7 is the overall structure and the working state schematic representation of the utility model.

Shown in Fig. 1～5, the utility model mainly partly is made up of cutter head and dual spring handle of a knife 1 etc.The lock-screw that is provided with on the handle of a knife 1 is the tight screw 3 of twin-lock.Cutter groove on the handle of a knife 1 is set to double-pole expanded letter cutter groove 2, wherein parallel arranged one a grooving cutter head 6 and a moulding cutter head 7, and the left and right sides of cutter groove 2 is respectively equipped with lock-screw 4, and it can be the tight screw of monolock, also can be the tight screw of twin-lock.

Middle side part at handle of a knife 1 also is provided with an auxiliary fixedly handle of a knife 5 perpendicular to its longitudinal axis.Auxiliary fixedly handle of a knife 5 has guaranteed the stability that cutter is installed, and the operate as normal of cutter in the process, does not vibrate, knife and forging a knife not, and then has guaranteed the machining accuracy of worm screw.

Necking cutter bit 6 and moulding cutter head 7 be at a distance of a pitch, and necking cutter bit 6 is generally 0.3mm than the moulding cutter head 7 0.2～0.4mm that protracts.According to the rotation direction of worm screw, determine the relative position of two cutter heads, when the car right-hand worm, necking cutter bit 6 is put a left side, otherwise puts the right side.

Fig. 6 shows double-pole cutter mechanism of the present utility model directly to advance the cutting image of method processing technology machining worm, and as seen its cutting image is reasonable, processing technology advanced person.

Fig. 7 shows overall structure of the present utility model and duty.When being installed the installation cutter head, except will compressing the tight screw 4 of twin-lock, also to regulate, compress the tight screw 3 of twin-lock according to the rotation direction of worm thread.During the processing right-hand worm, compress the tight screw 3 of twin-lock in handle of a knife left side, otherwise compress the tight screw of twin-lock on right side.

Cutter head of the present utility model can be used Hardmetal materials processing such as high-speed steel, W-Co kind alloy, all can realize the purpose of this utility model.

Characteristics of the present utility model:

1, simple in structure, easy and simple to handle. The cutter of once adjusting, be installed can be finished rough turn, finish turning two procedures, Do not need repeatedly to change the adjustment cutter, save time, laborsaving.

2, working (machining) efficiency height. Double-pole carries out turning to three faces of worm screw teeth groove respectively, and one-pass is all finished, The combination cutting of double-pole improves working (machining) efficiency greatly. Such as using respectively high-speed steel " hilted broadsword cutter mechanism (grooving Method) " with the A Jimi of double-pole cutter mechanism of the present utility model (directly advancing method) processing single head, dextrorotation, 5 moduluses Moral helix worm screw compares test: the former three process (rough turn, half finish turning and finish turning) respectively car 127, 77 and 6 cuttves, time spent 46,24 and 12 minutes; Tool changing 2 times, tool changing, 6 minutes adjustment (tool setting) times spent, All operation is total to car 210 cuttves, total 88 minutes consuming time. Latter's two procedures (rough turn, finish turning) is car 15 respectively With 2 cuttves, time spent 2.5 and 0.5 minute, one time stationary knife directly advances processing, and all operation is total to car 17 cuttves, consuming time 3 Minute. The result shows that double-pole cutter mechanism of the present utility model improves work efficiency nearly 30 than traditional hilted broadsword cutter mechanism Doubly.

3, machining accuracy height, quality are good.

4, tool sharpening is easy for installation, long service life.

5, can process the different worm screw of multiple material and geometry (spiral of Archimedes with prolong involute etc.).

6, not only can be used for the processing of worm screw, and can be used for the processing of leading screw, nut and other large-scale screw thread.

The utility model is simple in structure, and is reasonable in design, can enhance productivity greatly, reduces production costs, and promotes the utility model and will obtain good economic benefit and social benefit.

Claims

1, a kind of worm screw tool mechanism, form by cutter head and dual spring handle of a knife parts such as (1), the top of handle of a knife (1) is provided with lock-screw (3), it is characterized in that: the cutter groove on the handle of a knife (1) is set to double-pole expanded letter cutter groove (2), wherein parallel arranged one a grooving cutter head (6) and a moulding cutter head (7).

2, worm screw tool as claimed in claim 1 mechanism is characterized in that: the middle side part at handle of a knife (1) is provided with an auxiliary fixedly handle of a knife (5) perpendicular to its longitudinal axis.

3, as claim 1,2 described worm screw tool mechanisms, it is characterized in that: necking cutter bit (6) and moulding cutter head (7) are at a distance of a pitch, and necking cutter bit (6) stretches out 0.2～0.4mm forward than moulding cutter head (7).

4, as claim 1,2 described worm screw tool mechanisms, it is characterized in that: the left and right sides of cutter groove (2) is respectively equipped with the tight adjustment screw of twin-lock (4).

5, as claim 1,2 described worm screw tool mechanisms, it is characterized in that: the lock-screw (3) on cutter groove (2) top is the tight screw of twin-lock.