CN2461688Y

CN2461688Y - Improved adjusting screw sword

Info

Publication number: CN2461688Y
Application number: CN 00265159
Authority: CN
Inventors: 陈世英
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-11
Filing date: 2000-12-11
Publication date: 2001-11-28
Anticipated expiration: 2010-12-11

Abstract

The utility model relates to an improved adjustable screw monium. A groove is split on the circumference of a blade holder of the screw monium, three equidistant hole sites which are perpendicular to the groove are arranged, and a perforation is drilled and arranged on the center of the middle hole site; the other side surface of the groove, which corresponds to the perforation, is provided with a screw hole, and a long screw is penetrated, screwed and locked in the screw hole by the perforation; small screw holes are drilled and arranged at two side holes of the middle hole site, and a short screw enters a flat surface in a mode of screwing and locking, wherein, the flat surface is abutted on the other side of the groove. The more standard proper circle degree and the precise reaming size can be obtained, and the screw thread of a workpiece, which is formed in a mode of reaming, is more accurate and superior.

Description

The adjustable screw Mo of improvement

The utility model relates to a kind of adjustable screw Mo of improvement.

As everyone knows, screw Mo is mainly and is used for making externally threaded a kind of easy ream cutter, early the document structural design that discloses more complete " circular adjustment type screw Mo " is recorded in " complete magnificent science and technology book company " classification and each toponym thereof of 3-24 screw Mo of pages 158 pages in February, 1981, second edition was printed and distribute, it mainly is endoporus at circular screw Mo tool rest, dig again and be provided with multiple holes less clearance hole, generally all be set as four holes, and be shaped on rectangular opening by digging again between two mesopores, be used for being embedded the solid welding location for refining cutting edge, establish externally threaded blade as ream processing object institute desire system exactly, and by each mesopore the usefulness of scrap fallaway during as ream; The screw Mo tool rest that this is integrally formed, cut apart a groove in circumference, the lock of forcing that cooperates an accent rotary screw, just can be as the aperture of adjusting or enlarge bite portion, its major defect is: because this more old-fashioned screw Mo, can only do the aperture on adjusting enlarges, and desire is dwindled as the aperture, and just seeming has some difficulties, because when doing the aperture when dwindling, must be earlier with after transferring rotary screw to unscrew, refill in the hinge die holder, force the screw on the lock spanner again, the aperture of blade is dwindled, so on adjusting, doubly feel to bother, and be difficult for rapid adjustment to desired accurate aperture.

In another kind of commonly used structure as shown in Figure 1, it respectively establishes a breach at both sides, upper end opposite side screw Mo 1, wherein is provided with screw 12 at a breach, screw 13 spirals are locked; Another breach leading portion does not have screw thread 15, the back segment screw thread is through to the screw 14 of breach offside, screw 11 spirals are locked, its major defect is: no matter two screws are adopted face-off mutually, or on, upper/lower positions is arranged, or be positioned at position, the same side, what adopted all is to spin with a screw 11 to lock, and another screw 13 is as the mode that holds out against, thus its result will produce the application of force can not transfer establish average, if and all thread pitches are considered to enter, it is placed in projector does to measure to pick up and test, it is incident upon on the projection screen, can observe its integrally-built profile and surface condition thereof, all there is the situation of obvious deflection to produce, shown in the imaginary line of Fig. 1, cause to do to produce error when pore size is adjusted, its screw Mo 1 thickness is bigger, more be the serious of deflection, cause the out of roundness and the thread pitch of its each screw chasing cutter to be affected, make the external screw thread of institute's ream have coarse burr, more painstaking during ream, the external screw thread workpiece quality of producing has flaw, or causes waste product.

Main purpose of the present utility model is to provide a kind of adjustable screw Mo of improvement, by average in the middle of it with the accent spin amount of both sides, overcome the drawback of prior art, reach the out of roundness and the ream accurate dimension of standard, and make the more accurate good purpose of workpiece product.

The purpose of this utility model is achieved in that a kind of adjustable screw Mo of improvement, dig again at the endoporus of circular screw Mo tool rest and to be provided with most less clearance hole, and be shaped on rectangular opening by digging again between two mesopores, be embedded the solid welding location for refining external thread cutting cutter, this screw Mo tool rest is cut apart a groove in circumference, be drilled with equidistant and become vertical several holes position with groove at the circumference of screw Mo tool rest, it is characterized in that: be drilled with perforation again at center, interstitial hole position, the groove relative with this perforation side tabular surface in addition is provided with screwed hole again, long screw is worn by perforation and screw lock enters in the screwed hole, the two side holes that is positioned at the interstitial hole position is drilled with the minor thread hole again, and short screw screw lock enters and contacts on the tabular surface of other side of groove.

Bore a hole and the setting up of screwed hole and minor thread hole according to the thickness of screw Mo tool rest.

Major advantage of the present utility model is out of roundness and the ream accurate dimension with standard, and makes the workpiece product more accurate good and use to adjust easily effect fast.

Further specify below in conjunction with preferred embodiment and accompanying drawing.

Fig. 1 is the schematic diagram that the hinge silk Mo that uses always adjusts mode.

Fig. 2 is a schematic perspective view of the present utility model.

Fig. 3 is a combination cross-sectional schematic in plane of the present utility model.

Schematic diagram when Fig. 4 is the utility model adjustment.

Consult Fig. 2-Fig. 4, the utility model mainly is that the endoporus 20 at circular screw lock tool rest 2 digs and is provided with most less clearance hole 21, generally all be set as four holes, dig again by 21 of two mesopores and to be shaped on rectangular opening 22, be embedded the solid welding location for refining external thread cutting sword 23, establish externally threaded blade as ream workpiece institute desire exactly, and the usefulness by each mesopore 21 scrap fallaway during as ream; This screw Mo tool rest 2 is cut apart a groove 24 in circumference, and be drilled with position, three

holes

25,25 ', 25 at the circumference of screw Mo tool rest 2 "; become equidistant and vertical with 24 one-tenths of grooves; be drilled with perforation 26 again in 25 centers, interstitial hole position; the groove 24 relative with perforation 26 side tabular surfaces 29 in addition is provided with a screwed hole 27 again, long screw 81 26 wears also that screw lock enters in the screwed hole 27 by boring a hole; Be positioned at the two side holes position 25 ', 25 of interstitial hole position 25 " be drilled with minor thread hole 251 ' 251 again ", make respectively by short screw 82 screw locks and enter and contact at groove 24 in addition on the tabular surface 29 of sides.

When desiring to do whole aperture when dwindling, as shown in Figure 4, will lack screw 82 earlier and revolve and move back some distances, multiple with long screw 81 again precession again each short screw 82 is threaded into to conflict and is positioned at groove 24 and gets final product on the tabular surface 29 of sides in addition to the desired reduced bore; Otherwise, if will do whole aperture when enlarging, long screw 51 is revolved a little move back earlier, again each lack screw 82 forward screw lock push against on the tabular surface 29 of other side, just the expansion that can do the aperture is adjusted to desired size, then long screw 81 is revolved forward to be locked to suitable tightness and to get final product.

Above structural adjustment mode is because of middle accent spin amount with both sides obtains on average so can obtain the more out of roundness and the ream accurate dimension of standard, to make the workpiece product of ream gained more accurately good; Moreover, visual screw Mo tool rest thickness bore a hole 26 with screwed hole 27 and minor thread hole 251 ', 251 " set up.

Claims

1, a kind of adjustable screw Mo of improvement, dig again at the endoporus of circular screw Mo tool rest and to be provided with most less clearance hole, and be shaped on rectangular opening by digging again between two mesopores, be embedded the solid welding location for refining external thread cutting cutter, this screw Mo tool rest is cut apart a groove in circumference, be drilled with equidistant and become vertical several holes position with groove at the circumference of screw Mo tool rest, it is characterized in that: be drilled with perforation again at center, interstitial hole position, the groove relative with this perforation side tabular surface in addition is provided with screwed hole again, long screw is worn by perforation and screw lock enters in the screwed hole, the two side holes that is positioned at the interstitial hole position is drilled with the minor thread hole again, and short screw screw lock enters and contacts on the tabular surface of other side of groove.

2, according to the adjustable screw Mo of the described improvement of claim 1, it is characterized in that: bore a hole and the setting up of screwed hole and minor thread hole according to the thickness of screw Mo tool rest.