CN2150948Y

CN2150948Y - Special aid for deep hole procesing

Info

Publication number: CN2150948Y
Application number: CN 93201535
Authority: CN
Inventors: 刘金怀
Original assignee: TIANJIN HEAT TREATMENT INST
Current assignee: TIANJIN HEAT TREATMENT INST
Priority date: 1993-01-09
Filing date: 1993-01-09
Publication date: 1993-12-29
Anticipated expiration: 2003-01-09

Abstract

The utility model relates to a special clamping fixture for the deep hole processing of cutting tool rotary machine tools. The clamping fixture comprises two parts, one is a sealing guiding system composed of a direction-guiding liquid-guiding body provided with a sealing guiding chip removal function, a positioning front drill bushing, a sealing guide sleeve, a back drill bushing and an oil baffle sleeve, the other part is a clamping tyre composed of a fixing clamping tyre and a movable clamping tyre which are fixed on a working table in a half symmetrical mode, and the clamping tyre has the functions of positioning automatically, expanding outward tightly or clamping workpieces inward tightly. The utility model has the advantages that the clamping fixture is easy to be manufactured, the deep hole is completed at one time, the work efficiency is enhanced hundreds of times, the processing accuracy reaches to IT7, the ratio of hole diameter and hole depth is 1: 100, and the range of processing and application is wide.

Description

Special aid for deep hole procesing

The utility model relates to a kind of special-purpose mold of deep hole machining.

At present, deep hole processing adopts traditional handicraft processing, that is: subdrilling substantially in the domestic mechanical industry; Back boring; Finish ream at last or right boring.This technology is complexity, and efficient is low, and low precision requires operating personnel's technical merit higher, and by traditional handicraft processing, aperture and hole depth rate must not be greater than 1:5, and it is just difficult to surpass this scope deep hole machining.For guaranteeing the precision of processing butterfly valve body deep hole, the manufacturer that has introduces the special-purpose deep hole processing lathe of German NAGEL company, though this lathe machining accuracy height, the range of work is very narrow, can only process the butterfly valve of two kinds of specifications of a series.

The purpose of this utility model is to provide a kind of production efficiency height, the scope of application wide, and the machining accuracy height has the sealing guidance system and the special-purpose mold of positioning and clamping card tire automatically.

The purpose of this utility model solves with following scheme:

This special use mold is applicable on the workbench that is contained in the cutlery rotation, it is made up of two parts: a part is to have sealing, guiding, chip removal and removable guide drain body, drill bushing before the location, sealing fairlead, back drill bushing, the sealing guidance system that the retaining oil jacket is formed; Another part is the card tire that is fixed on two hemihedrism on the workbench, its half be fixing card tire; Second half is removable, automatic location, and the active card tire two parts that have outside tensioner or inside clamping work pieces are simultaneously formed.

At guiding oil cylinder of guiding drain body upper support, the cutlery sliding fit in the oil cylinder in guide piston and its inner chamber.The preceding drill bushing in location can be set in guide piston and be exposed on the outer termination of oil cylinder; Also can be set on the claw of fixing card tire.The end face and the guide piston end face of drill bushing fit tightly before the location.

Back interstage sleeve can be fastened on the mobile support, also can be set on the claw of active card tire.

Slide in the active card tire is fastened on the workbench, and sliding way can move along slide runner.The tire base plate that has claw and have a positioning action is fastened on the sliding way, and nut is one with sliding way and piston rod locking in the clamping cylinder that is fixed on the workbench.

The shape of claw with conformed to substantially by the shape of clamping workpiece, can be semicircle, square, ellipse or rhombus.

The utility model has the advantages that:

1, production efficiency height, a drilling can reach required size, and cutting speed can reach 80-120 rice/proportion by subtraction common process soon and improve tens times to more than 100 times, reduces physical labor intensity significantly.

2, machining accuracy height, steady quality is reliable, and the precision in hole can reach IT7, and linearity is 0.05 millimeter/meter; Ovality can reach 0.005 millimeter; The position symmetry is between 0.01-0.05; Surface roughness

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3, the scope of application is wide, and unit can be processed the deep hole of 16 kinds of specification butterfly valves of eight series and other marine valve valve body, valve plate, has contained 16 series by the DN40-DN600 range of work, and 32 kinds of specifications have satisfied user's needs substantially.Aperture and hole depth rate can reach 1:100, and this is that common process can't be finished.

4, this positioner structure is simple; Make easily; With low cost; Easy to use.Simultaneously general device such as lathe, drilling machine are changed a little and can carry out deep hole machining.

Description of drawings:

Fig. 1 is the front view of the utility model embodiment 1;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the front view of the utility model embodiment 2;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is an A-A cutaway view among Fig. 1.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

(1) embodiment 1: the special-purpose mold of processing butterfly valve body deep hole.

Spray with oil-feed, cooling chip removal function is housed on horizontal screw unit inhales brill rotary body 1, on spray suction brill rotary body, cutlery 23 is housed, have on this building-block machine workbench 34 one can on workbench, move have chip removal, the guiding drain body 2 of discharge opeing function, guiding oil cylinder 3 is fastened on the guiding drain body 2, a guide piston 15 is arranged, the cutlery in the guide piston inner chamber and its sliding fit in guiding oil cylinder 3.The termination that is exposed at guiding oil cylinder external orientation piston studs with a preceding drill bushing 4, and the locknut 5 on the preceding drill bushing external diameter is close to its end face on the butterfly valve body end face of flange suitable for reading.The guiding oil cylinder two ends are enclosed on the guide piston external diameter and the end cap 16 that has a sealing gasket 14 is sealed, and sealing guiding drill bushing 7 is contained between stationary jaw 29 and the movable jaw 10.Between sealing guiding drill bushing and retaining oil jacket 9, drill bushing 8 after also studding with a guiding on the moving claw.Being close to butterfly valve body deep hole end has a retaining oil jacket 9, and this retaining oil jacket is fastened on the support 37, and support can be along moving on the slideway that is fastened on the carriage 38 on the workbench.

The fixedly card tire 13 that has semicircle claw 29 is fastened on the workbench.Be fastened in the groove of tire base plate 30 end faces with the semicircle claw 10 outer marginal circumference boss of its symmetry.The tire base plate is fastened on the slide unit 33 with screw.Locknut 12 is one with 11 lockings of piston rod in slide unit and the clamping cylinder 36.Slide unit moves at piston rod effect lower edge 32 liang of side rails of square slide.Slide unit and slide side clearance are adjusted with panel 31, and it is adjusted with the pressing plate 35 that is fastened on the slide unit lower surface in the gap up and down.Slide is fastened on the workbench.Under clamping cylinder 36 effects? be stuck in butterfly valve body 6 inner chambers symmetrical halves claw butterfly valve body tensioner is finished automatic locating clip clamping of workpieces function.

(2) embodiment 2: to the special-purpose mold of butterfly valve flashboard deep hole machining.

The sealing guidance system of present embodiment is: a removable guiding drain body 18 with chip removal, discharge opeing function is arranged on the workbench 34, and guiding oil cylinder 19 is fastened on the guiding drain body.A guide piston 27 is arranged, the cutlery in the guide piston inner chamber and its sliding fit in the guiding oil cylinder.The guide piston end face that is exposed at the guiding oil cylinder outside fits tightly with preceding drill bushing 20 end faces of guiding that are set on fixing card tire 25 claws.The guiding oil cylinder two ends are sealed by the end cap 17 that is enclosed within on the guide piston external diameter and have a sealing gasket 28, and retaining oil jacket 22 is set on the claw 26 of active card tire.

The claw of the fixedly card tire that two semicircles are symmetrical and the claw on the active card tire are stuck in butterfly valve flashboard 21 in the middle of two pawls, and locknut 24 is one with 11 lockings of piston rod in slide unit and the clamping cylinder 36.Active card tire structure is with embodiment 1, and the butterfly valve flashboard with its clamping, is finished automatic positioning and clamping function under oil cylinder 36 effects.

Claims

1, the special-purpose mold of deep hole machining on a kind of lathe that is suitable for cutlery rotation, it is characterized in that this mold comprises two parts: a part is by having sealing, guiding, chip removal and removable guide drain body (2), (18), drill bushing (4), (20) before the location, sealing fairlead (7), back drill bushing (8), the sealing guidance system that retaining oil jacket (9), (22) are formed; Another part is to be fixed on the symmetrical card tire of two halves on the workbench, blocks tire and is fixing card tire (13) by half, and second half is made up of active card tire two parts of outside tensioner or inside clamping work pieces simultaneously for locating automatically.

2, according to the special-purpose mold described in the claim 1, it is characterized in that at guiding drain body (a 2) guiding oil cylinder of upper support (3), cutlery sliding fit in this in-oil cylinder guide piston (15) and its inner chamber, the guide piston end that is exposed at the guiding oil cylinder outside studs with a preceding drill bushing (4).

3, according to the special-purpose mold described in the claim 1, it is characterized in that at guiding drain body (a 18) guiding oil cylinder of upper support (19), cutlery sliding fit in this in-oil cylinder guide piston (27) and its inner chamber, the end face that is exposed at the guide piston of this oil cylinder outside fits tightly with the end face that is set in the preceding drill bushing (20) of guiding on the location tire (13).

4, according to the special-purpose mold described in claim 1 or 2, it is characterized in that backstop oil jacket (9) is fastened on movably on the support (37), this support is by supporting plate 38 supportings that are fastened on the workbench.

5,, it is characterized in that backstop oil jacket (22) is set on the claw (26) of movable tire according to the special-purpose mold described in claim 1 or 3.

6, according to the special-purpose mold described in the claim 1 to 2 any, it is characterized in that the slide (32) in the active card tire is fastened on the workbench (34).Sliding way (33) can move along slide runner, have claw (26) and have the tire base plate (30) of positioning action to be fastened on the sliding way (33), nut (12) is locked sliding way and is one with the piston rod (11) in the clamping cylinder (36) that is fixed on the workbench.

7, according to any described special-purpose mold in the claim 1 to 2, the shape that it is characterized in that claw with conformed to substantially by the shape of clamping workpiece, can be semicircle, square, ellipse or rhombus.