CN203649493U

CN203649493U - Spiral groove machining fixture

Info

Publication number: CN203649493U
Application number: CN201320890357.2U
Authority: CN
Inventors: 杜可庆
Original assignee: HUANGSHAN YONGFENG MECHANICAL AND ELECTRICAL MANUFACTURING Co Ltd
Current assignee: HUANGSHAN YONGFENG MECHANICAL AND ELECTRICAL MANUFACTURING Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-18
Anticipated expiration: 2023-12-31

Abstract

The utility model belongs to the technical field of machining devices and in particular relates to a machining fixture capable of machining spiral grooves. The spiral groove machining fixture comprises a base and a rotation rack, wherein the rotation rack is arranged on the base; a fixture is arranged on the rotation rack and used for fixing workpieces to be machined; a spiral lifting mechanism and a rotation angle limiting mechanism are arranged between the rotation rack and the base; a milling cutter is parallel to a rotation center of the rotation rack; and the milling cutter is eccentrically arranged. By combining normal machining devices, the spiral lifting mechanism rotates and lifts till the workpieces to be machined are contacted with the milling cutter; and through the rotation angle limiting mechanism, sizes of arc lengths of machined spiral grooves can be guaranteed. The fixture is simple in structure, low in cost, simple and convenient to operate; by only combining the most conventional machining devices, the spiral grooves can be machined; the problem that the expensive spiral groove machining devices in the prior art can be effectively solved; and the fixture is applicable to production requirements of small enterprises.

Description

Helicla flute clamp for machining

Technical field

The utility model belongs to machining equipment technology field, and particularly one can process spiral fluted clamp for machining.

Background technology

In common machined lathe, operated by rotary motion has a knife rest (structural representation that accompanying drawing 1 is knife rest) that four lathe tools can be installed, and in the time that blank is carried out to machined, according to different operation designs, selects corresponding tool sharpening by rotating turret.In actual operation, cutter needs regular frequent selection, and the rotating effect of knife rest and positioning precision are directly connected to machined precision.Knife rest adopts the mode of helicla flute 1a location more common, need on substrate 1b, process four helicla flute 1a, helicla flute 1a is provided with 4 and it is symmetrical along knife rest pivot, and one end of helicla flute 1a is darker, the other end smooth-going to the plate face of substrate 1 and bottom land be inclined plane shape.

In prior art, as spiral groove of workpiece processing such on knife rest, adopt the Digit Control Machine Tool of three axle linkages to complete, because Digit Control Machine Tool equipment price is higher, and operator's operative skill is had relatively high expectations, this kind of processing mode is not suitable for some medium-sized and small enterprises very much.

Utility model content

The purpose of this utility model is to provide a kind of spiral fluted processing unit (plant), is suitable for being used in conjunction with spiral fluted processing with the machining apparatus of existing routine, reduces actual processing cost.

For realizing above object, the technical solution adopted in the utility model is: a kind of helicla flute clamp for machining, comprise base and rotary stand disposed thereon, on rotary stand, be provided for the fixture of fixing workpiece to be processed, spiral lifting mechanism and corner locating mechanism are set, the parallel and arranged off-centre of the centre of gyration of milling cutter and rotary stand between rotary stand and base.

Compared with prior art, there is following technique effect in the utility model: utilizes conventional machining apparatus, such as milling machine, boring machine, drilling machine etc., the knife face of milling cutter is arranged on to be processed of workpiece to be processed to be located, the centre of gyration arranged off-centre of milling cutter and turntable, spiral lifting mechanism between rotary stand and base rotation lifting like this, the plate face that workpiece to be processed need to process helicla flute place contacts with milling cutter, spiral lifting mechanism continues lifting, just can process helicla flute at the plate face to processing work, corner locating position-limit mechanism guarantees that processing described helicla flute arc length size is exactly specifically the angle of the angle that camber line is corresponding, this clamp structure is simple, cheap, simple, convenient, only needs can complete spiral fluted processing in conjunction with the most conventional machining apparatus, can effectively solve the problem of helicla flute process equipment costliness in prior art.

Accompanying drawing explanation

Fig. 1 is the structural representation of knife rest;

Fig. 2 is structural representation of the present utility model.

The specific embodiment

In conjunction with Fig. 1 and Fig. 2, the utility model is done to further detailed deciphering:

A kind of helicla flute clamp for machining, comprise base 10 and rotary stand 20 disposed thereon, on rotary stand 20, be provided for the fixture of fixing workpiece to be processed 1, spiral lifting mechanism and corner locating mechanism are set, the parallel and arranged off-centre of the centre of gyration of milling cutter 2 and rotary stand 20 between rotary stand 20 and base 10, take the knife rest of lathe as example, shown in Fig. 1 and Fig. 2, on the substrate 1b of described knife rest 1, process helicla flute 1a, knife rest 1 is fixed on rotary stand 20, it is exactly specifically the pivot position that the plate face at the substrate 1b place of knife rest 1 need to be positioned at rotary stand 20, milling cutter 2 arranges the pivot position that is positioned at the upper board face of substrate 1b and departs from rotary stand 20, now be arranged on the spiral lifting mechanism lifting arranging between rotary stand 20 and base 10, until substrate 1b is contacted with milling cutter, so just can utilize conventional machining apparatus, such as milling machine, boring machine, drilling machines etc. process helicla flute 1a, this clamp structure is simple, cheap, simple to operation, can effectively solve the problem of helicla flute process equipment costliness in prior art.

Concrete, described spiral lifting mechanism is leading screw and nut mechanism, wherein screw mandrel 11 connects as one with base 10, nut 21 is arranged on the bottom of rotary stand, shown in Fig. 2, rotating nut 21 just can lifting nut 21 like this, until the substrate 1b of knife rest 1 contacts with milling cutter 2, so just can process helicla flute 1a, wherein the groove depth of helicla flute 1a is corresponding with the pitch of nut 21 rotational angles and leading screw and nut mechanism.

Further, described corner locating mechanism, comprise the projection 12 being arranged on base 10 and be arranged at the projection 22 on nut 21 outer walls, described projection 12 be arranged on the rotate path of projection 22 and projection 22 rotational angles identical with the folded angle of helicla flute 1a arc length of workpiece to be processed, larger its corresponding folded angle of helicla flute 1a arc length of rotational angle of concrete is exactly projection 22 is larger.

Further, for making effectively clamping position of workpiece to be processed, on described rotary stand 20, be provided with stationary fixture, this stationary fixture comprises location-plate 23 and clamping plate 24, described location-plate 23 is positioned on the table top of rotary stand 20 and the two formation is slidably matched, one side end of described location-plate 23 is provided with plane of orientation 23a, the side end plate face of described plane of orientation 23a and workpiece to be processed forms and reclines or away from coordinating, take knife rest 1 as example, its plane of orientation 23a is exactly the side panel face of locating substrate 1b, in order further to clamp knife rest 1, prevent that it from swinging arbitrarily, described clamping plate 24, the plate face of described clamping plate 24 lower panel faces and substrate 1b forms and reclines or away from coordinating, described clamping plate 24 are arranged on rotary stand 20 table tops by fastening connection piece.

Shown in Fig. 2, the plate face of rotary stand 20 can be made to discoidal flat board, rotary stand 20Ban Mian center is positioned at home position place exactly, when rotary stand 20 is fixed with nut 21, rotary stand 20Ban Mian center is overlapped with the center of rotation of nut 21, edge at rotary stand 20 plate faces mills out a plane, the plate face of this plane is parallel with the axis of rotary stand 20, fixed block 26 is bolted in this plane, regulating handle 27 is set on fixed block 26, regulating handle 27 forms and is threaded with fixed block 26, the end panel face of the other end of regulating handle 27 and location-plate 23 is fastening, rotating like this regulating handle 27 makes location-plate 23 slide until fastening with the side panel face of the substrate 1b of workpiece to be processed selecting on rig floor frame 20, so just workpiece to be processed can be fixedly clamped at the plate face center position of rotary stand 20, when whole fixture is fixed on milling machine, make the pivot of fixture, the plate face misalignment milling cutter 2 that is exactly specifically rotary stand 20 is arranged, rotating nut 21 or rotary stand 20 until make the plate face of workpiece to be processed contact with milling cutter 2 against, milling cutter 2 just can process helicla flute like this.

Finally, on the face of cylinder of described rotary stand 20 mesa edge, be provided with turning handle 25, the length direction of described turning handle 25 is axial vertical with rotary stand 20, in the time that needs are processed helicla flute, pull turning handle 25, rotary stand 20 rotates lifting, until the plate face at the workpiece to be processed helicla flute place on rotary stand 20 contacts with milling cutter 2, processes helicla flute.

For the helicla flute of processing different size, only need to change screw mandrel 11 and the nut 21 of different pitch, this apparatus structure simple and stable, with low cost, the mode of production of very applicable small enterprise.

Claims

1. a helicla flute clamp for machining, it is characterized in that: comprise base (10) and rotary stand (20) disposed thereon, on rotary stand (20), be provided for the stationary fixture of fixing workpiece to be processed, between rotary stand (20) and base (10), spiral lifting mechanism and corner locating mechanism are set, the parallel and arranged off-centre of the centre of gyration of milling cutter (2) and rotary stand (20).

2. helicla flute clamp for machining according to claim 1, is characterized in that: described spiral lifting mechanism is leading screw and nut mechanism, and wherein screw mandrel (11) connects as one with base (10), and nut (21) is arranged on the bottom of rotary stand (20).

3. helicla flute clamp for machining according to claim 2, it is characterized in that: described corner locating mechanism, comprise the projection (12) being arranged on base (10) and be arranged at the projection (22) on nut (21) outer wall, described projection (12) be arranged on the rotate path of projection (22) and projection (22) rotational angle identical with the folded angle of helicla flute arc length of to be processed.

4. helicla flute clamp for machining according to claim 2, it is characterized in that: fitment comprises location-plate (23) and clamping plate (24), table top and the two formation that described location-plate (23) is positioned at rotary stand (20) are slidably matched, one side end of described location-plate (23) is provided with plane of orientation (23a), the side end plate face of described plane of orientation (23a) and workpiece to be processed forms and reclines or away from coordinating, the plate face at described clamping plate (24) lower panel face and workpiece to be processed helicla flute place forms and reclines or away from coordinating, described clamping plate (24) are arranged on rotary stand (20) table top by fastening connection piece.

5. helicla flute clamp for machining according to claim 4, it is characterized in that: on the face of cylinder of described rotary stand (20) mesa edge, be provided with turning handle (25), the length direction of described turning handle (25) is axial vertical with rotary stand (20).