CN2723096Y

CN2723096Y - Hand tapping tool for lathe

Info

Publication number: CN2723096Y
Application number: CN 200420091385
Authority: CN
Inventors: 徐永顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-13
Filing date: 2004-09-13
Publication date: 2005-09-07
Anticipated expiration: 2014-09-13

Abstract

The utility model relates to a hand tapping tool for lathes and is used for the tapping of lathes. The utility model is characterized in that the interior of the shaft hole on one end of the feather key sleeve is provided with a tap fixed sleeve, and the interior of the shaft hole on the other end is provided with a feather key groove; one end of the feather key shaft provided with the feather key is made to be sheathed in the sliding groove to be consistent with the horizontal central shaft line of the frame; the left and the right frame edges of the frame are provided with concentric holes; the other end of the feather key shaft is arranged in the two concentric holes; the interior of the concentric hole corresponding with the end of the feather key shaft is provided with a flange taper shank; the section of the feather key shaft in the frame is provided with a large conical gear; corresponding to the position of the large conical gear, the frame edge of the frame is provided with a horizontal shaft-supporting frame; the shaft-supporting frame and the rear frame edge are provided with concentric holes, and the interiors of the two concentric holes are provided with vertical shafts; the sections of the vertical shafts in the frame are provided with small conical gears engaging with the large conical gear. The utility model can not only thoroughly solve the tap hole error caused by the big deviation of the accuracy of the different shaft degrees of the lathe and improve the quality of the tap hole, but also the tapping for valuable materials and blind holes is convenient. The operation and the use are very convenient.

Description

Lathe hand tapping instrument

Technical field

The utility model belongs to a kind of screw thread cutting instrument, is specially adapted on lathe a kind of lathe hand tapping instrument with manual tapping.

Background technology

At present, tapping on lathe, workpiece rotates, and the screw tap feed is not high and be subjected to synthesis precision factor restricted influence in the lathe precision, often produce bigger disalignment accuracy error, just cause the own axis of the screw tap feed direction of motion and screw tap to produce deviation angle, and feed is obstructed, workpiece turns around, the feed distance makes the silk hole and the screw thread error of tapping very big less than a pitch.Also has a kind of tapping on drilling machine, though workpiece is motionless, screw tap rotates, it can avoid the silk hole error that produces because of malalignment, but owing to be that motor-driven tapping, screw tap rapidly rotate along a rotation direction, inconvenience control, be easy to the screw tap that fractures, especially to precious materials workpiece and blind hole tapping,, often cause workpiece to scrap because the tapping smear metal is difficult for discharging and being difficult to control the tapping degree of depth.

Summary of the invention

The utility model purpose is the defective that exists in above-mentioned technology and weak point and provide and can improve the tapping quality, easy to operate again a kind of lathe hand tapping instrument.

The purpose of this utility model realizes with following technical scheme: lathe hand tapping instrument comprises the screw tap that tapping is used, be characterised in that: its structure is mainly by the anchoring filament tapered sleeve, jackscrew, sliding key sleeve, feather key, sliding key shaft, framework, greatly, small conical gear, vertical axis, trip bolt, the flange taper shank is formed, the screw tap fixed cover that dress is reinforced with jackscrew in the sliding key sleeve one end axis hole, relative with anchoring filament tapered sleeve end in the other end axis hole of sliding key sleeve to adorn an end of sliding key shaft movingly, consistent with the framework horizontal center line axis, on a framework left side, be processed with concentric axis hole on the right edge, the other end of sliding key shaft passes the axis hole of an edge of framework, be bearing in the axis hole of another edge, in this axis hole behind the feather key axle head, suit flange taper shank, and suit large conical gear on the feather key shaft part in being in framework, corresponding with the large conical gear position, establish a pedestal that is parallel to the feather key axis on the edge in framework, consistent with the vertical axis that the feather key axis is perpendicular, at a pedestal, be processed with concentric axis hole on the back edge, vertical axis is packed in the two concentric axis holes, and the small conical gear that dress is meshed with large conical gear on the vertical shaft part in framework, outside the exposed framework of another shaft part of vertical axis, big, small conical gear is fixed on the corresponding axle of institute with trip bolt respectively.Described screw tap fixed cover has the suit hole of matching with screw tap tail shape, size in the trepanning; Described sliding key shaft is on the periphery of feather key ball in the sliding key sleeve and is connected with feather key; Described sliding key sleeve, corresponding with the feather key of sliding key shaft, on the axis hole inner peripheral surface, have and to hold the chute that feather key carries out horizontal slip, so that screw tap tapping forward and back is used, described flange taper shank, the flanged shaft part of one end, relative with sliding key shaft (5) axle head, this shaft part is packed in the concentric axis hole of edge of framework, with bolt flange is fixed on the edge lateral surface, the other end is processed with the flat shaft part equipped mutually with the tail stock hole, and it can change the flange link position to satisfy different cover holding positions in the tail stock hole; Described vertical axis, an end is processed into the shaft part that the suit small conical gear is used, other end shaft part exposes outside framework, in axial end in processing pull the square hole that square toes match with special-purpose the overlapping of lathe.During tapping, workpiece is fixed, the flat shaft part plug-in mounting of taper shank is gone in the tail stock hole, cover is pulled in the square hole that inserts vertical axis, at this moment, spanner pivot center and screw tap axis normal, pull with the hand turning set, by the conical gear pair, sliding key shaft, cover drives screw tap and carries out tapping, owing to rotate with hand, both tapping fast, tapping at a slow speed again simultaneously, can also change rotation direction arbitrarily, be convenient to smear metal is discharged, guarantee the tapping hole quality, laborsaving in order to make the utility model, described big, 2: 1 above gearratios are adopted in the small conical gear transmission, the comprehensive above technical measures of being taked realize the purpose of this utility model.

Compared with prior art, the utility model can not only solve that to have the tapping hole quality that big disalignment accuracy error caused low because of lathe, improves a silk hole quality, guarantee by installation device assembly precision, and its tapping operation, use very convenient.

Description of drawings

The utility model has a width of cloth accompanying drawing, wherein:

Accompanying drawing 1 is the main apparent structure schematic diagram of the utility model specific embodiment.

Among the figure: 1, anchoring filament tapered sleeve 2, sliding key sleeve 3, jackscrew 4, feather key 5, sliding key shaft 6, framework 7, large conical gear 8, small conical gear 9, vertical axis 10, trip bolt 11, a pedestal 12, flange taper shank

The specific embodiment

Shown in Figure 1 is specific embodiment of the utility model, its lathe hand tapping instrument is by the anchoring filament tapered sleeve 1 that screw tap 13 is housed, sliding key sleeve 2, jackscrew 3, feather key 4, sliding key shaft 5, framework 6, greatly, small

conical gear

7,8, vertical axis 9, trip bolt 10 and flange taper shank 12 are formed, on a left side, on the unequal-sided quadra 6 of right edge, consistent with framework 6 horizontal center line axis, left side at framework 6, be processed with concentric holes on the right edge, sliding key shaft 5 is contained in two concentric holes, be installed in large conical gear 7 on the axle with trip bolt 10 on 5 sections of the sliding key shafts in framework 6, corresponding with the position of large conical gear 7, be provided with a pedestal 11 that parallels with sliding key shaft 5 axis on the left frame in quadra 6, consistent with the vertical axis of framework 6, at a pedestal 11, be processed with concentric holes on the back edge, vertical axis 9 is loaded in two concentric holes, adorn on vertical axis 9 shaft parts in framework 6 and be fixed on the axle with trip bolt 10, the small conical gear 8 that is meshed with large conical gear 7, be in the axial end of vertical axis 11 shaft parts in framework 6 outsides, be processed with the lathe cover and pull the square hole that square toes match.

Claims

1, a kind of lathe hand tapping instrument, comprise the screw tap (13) that tapping is used, be characterised in that: its structure is mainly by anchoring filament tapered sleeve (1), jackscrew (3), sliding key sleeve (2), feather key (4), sliding key shaft (5), framework (6), greatly, small conical gear (7), (8), vertical axis (9), trip bolt (10), prop up pedestal (11), flange taper shank (12) is formed, the anchoring filament tapered sleeve (2) that dress is reinforced with jackscrew (3) in sliding key sleeve (2) the one end axis holes, in sliding key sleeve (2) other end axis hole, relative with anchoring filament tapered sleeve (1) end, with an end of suit sliding key shaft (5) movingly, consistent with framework (6) horizontal center line axis, on framework (a 6) left side, be processed with concentric axis hole on the right edge, the other end of sliding key shaft (5) passes the axis hole of framework (6) one edges, be bearing in the axis hole of another edge, in this axis hole, behind sliding key shaft (5) end, suit flange taper shank (12), and adorn large conical gear (7) on sliding key shaft (5) shaft part in framework (6), corresponding with large conical gear (7) position, establish a pedestal (11) that is parallel to sliding key shaft (5) axis on the edge in framework (6), consistent with the axis that sliding key shaft (5) line is perpendicular, at a pedestal (11), be processed with concentric axis hole on the back edge, vertical axis (11) is packed in the two concentric axis holes, and the small conical gear (8) that suit is meshed with large conical gear (7) on the shaft part of the vertical axis (11) in framework (6), outside the exposed framework (6) of another shaft part of vertical axis (11), big, small conical gear (7), (8) be fixed on the corresponding axle of institute with trip bolt (10) respectively.

2, by the described lathe hand tapping of claim 1 instrument, be characterised in that: be processed with the suit hole of matching in described screw tap fixed cover (1), the trepanning with screw tap (13) tail shape, size.

3, by the described lathe hand tapping of claim 1 instrument, be characterised in that: described sliding key shaft (5), be on the axle periphery in the sliding key sleeve (2) and be connected with feather key (4).

4, by the described lathe hand tapping of claim 1 instrument, be characterised in that: described sliding key sleeve (2) corresponding with the feather key (4) on the sliding key shaft (5) on the axis hole inner peripheral surface, have and can hold the chute that feather key (4) carries out horizontal slip.

5, by the described lathe hand tapping of claim 1 instrument, be characterised in that: described flange taper shank (12), one end is flanged shaft part, shaft part is sleeved in the edge axis hole of framework (6), relative with sliding key shaft (5) axle head, with bolt flange is connected on the edge lateral surface, the other end be processed with the tail stock hole in equipped mutually flat shaft part.

6, by the described lathe hand tapping of claim 1 instrument, be characterised in that: an end of vertical axis (9) exposes outside framework (6), is processed with in axial end with the lathe cover and pulls the square hole that square toes match.