CN203390626U

CN203390626U - Circular shaft middle surface centering device

Info

Publication number: CN203390626U
Application number: CN201320455995.1U
Authority: CN
Inventors: 刘建文
Original assignee: SICHUAN PROVINCE ZIGONG CITY HAICHUAN INDUSTRIAL Co Ltd
Current assignee: SICHUAN PROVINCE ZIGONG CITY HAICHUAN INDUSTRIAL Co Ltd
Priority date: 2013-07-29
Filing date: 2013-07-29
Publication date: 2014-01-15
Anticipated expiration: 2023-07-29

Abstract

The utility model relates to a circular shaft middle surface centering device which comprises a V-shaped block. A cross groove is formed in the center line position of the top face of the V-shaped block, and a clamping port capable of containing a machined part is formed in the bottom face. The clamping port comprises locating inclined sides which are symmetrical with the vertical center line of the V-shaped block as the symmetry center, the V-shaped block is connected with one end of a cross plate below the cross groove, a cross plate central line is arranged on the central side of the V-shaped block, the other end of the cross plate is connected with an outer taper-shank rod perpendicular to the cross plate central line, a sliding sleeve matched with a gap of the outer taper-shank rod is arranged on the outer taper-shank rod, a groove aligning plate is arranged on the sliding sleeve, and the groove aligning plate is in clearance fit with the cross groove. By means of the structure, a machine tool work table is moved first, and the two locating inclined sides of the clamping port are in contact with an excircle of the part. When the groove aligning plate falls in the cross groove in the V-shaped block, a vertical plane where a center line of the top face of the V-shaped block is the axis passing through the part. The circular shaft middle surface centering device is taken down, a milling cutter is replaced on a cutter bar tapper shank, and the axis of the milling cutter is located right on the middle surface of the part with a circular shaft.

Description

Face alignment device in circular shaft

Technical field

The utility model specifically discloses face alignment device in a kind of circular shaft.

Background technology

In machine industry, often run into and will on axial workpiece, with milling machine, process keyway.But in keyway processing, there is the problem of how tool setting.Cotter mill cutter is aligned to the middle face (vertical direction is by the face of axis of workpiece) of axial workpiece, the symmetry that the keyway that assurance processes meets design requirement.Because the symmetry of keyway is to guarantee the necessary condition of assembling smoothly, its crudy directly has influence on the performance and used life of whole device, thereby in processing, is all that the axis cotter mill cutter and axle aligns by every possible means, to meet the designing requirement of part.Generally use in the prior art lever indicator to carry out centering, but the beginner who lacks experience grasp again bad to lever indicator aligning method.

Utility model content

The purpose of this utility model is to provide a kind of easy to operate, face alignment device in the accurate circular shaft of centering.

The technical solution of the utility model is face alignment device in a kind of circular shaft, comprise V-block, described V-block is provided with translot in end face midline, in bottom surface, be provided with the jaws that can hold part to be processed, described jaws comprises the location hypotenuse about the vertical center line symmetry of V-block, described V-block is connected with one end of a transverse slat below translot, described transverse slat centerline is on V-block median plane, the described transverse slat other end connects the outer taper shank bar vertical with the center line of transverse slat at vertical direction, sliding sleeve with its matched in clearance is set on described outer taper shank bar, on described sliding sleeve, arrange slotted vane, described is matched in clearance to slotted vane and translot.

Further, described V-block is provided with the square hole that connects V-block middle part at axis direction, and described transverse slat side and square hole matched in clearance are also located by bearing pin.

Further, described outer taper shank bar lower end is the female ladder cylinder of tool, and described transverse slat right-hand member has a circular hole, between described ladder cylinder and circular hole, is matched in clearance, and described outer taper shank bar and transverse slat are by screw thread axial limiting.

Further, on described transverse slat upper and lower end face and square hole, between lower wall, there is gap.

Further, the angle between the hypotenuse of described location is 90 degree.

Further, described V-block side has rectangular through slot.

Useful technique effect of the present utility model is: after adopting this structure, first move and adjust the platen of clamping axial workpiece, two cylindricals of locating hypotenuses and part of the jaws of V-block are contacted, when slotted vane being fallen into after the translot on V-block, now, the perpendicular at V-block end face center line place, by the axis of part, takes off face alignment device in this circular shaft, on knife bar taper shank, change milling cutter, the axis of milling cutter is just in time arranged on the face of circular shaft part.

Accompanying drawing explanation

Fig. 1 is the utility model front view;

Fig. 2 is that the utility model is along the cutaway view of B-B line;

Fig. 3 is that the utility model is along the top view of A-A line;

Fig. 4 is the stereogram of V-block of the present utility model.

Wherein: 1. 9. pairs of slotted vanes of the outer taper shank bar 3. sliding sleeve 4. transverse slat 5. pad 6. outer-hexagonal bolts 7. bearing pin 8.V type pieces of knife bar taper shank 2., 10. square holes 11. are located hypotenuse 12. translot 13. sliding sleeve translots

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

If Fig. 1 is to face alignment device in a kind of circular shaft as shown in Fig. 4, comprise V-block 8, described V-block 8 is provided with translot 12 in end face midline, in bottom surface, be provided with the jaws that can hold part to be processed, described jaws comprises the location hypotenuse 11 about V-block 8 vertical center line symmetries, described V-block 8 is connected with one end of a transverse slat 4 below translot 12, described transverse slat 4 centerline are on V-block 8 median planes (vertically by the face of end face center line), described transverse slat 4 other ends connect the outer taper shank bar 2 vertical with the center line of transverse slat 4 at vertical direction, sliding sleeve 3 with its matched in clearance is set on described outer taper shank bar 2, on described sliding sleeve 3, arrange slotted vane 9, described is matched in clearance to slotted vane 9 and translot 12.

Concrete, for the ease of assembling, on sliding sleeve 3, be provided with sliding sleeve translot 13, to being interference fit or clamping between slotted vane 9 and sliding sleeve translot 13.The outer taper shank bar 2 of this structure is assemblied on the knife bar taper shank 1 on machine tool chief axis, in centering, first move and adjust the platen of clamping axial workpiece, two location hypotenuses 11 of jaws and the cylindrical of part are contacted, when slotted vane 9 being fallen into after the translot 12 on V-block 8, now, the perpendicular at V-block 8 end face center line places is by the axis of part, the axis of outer taper shank bar 2 is by the middle face of circular shaft part, now take off face alignment device in this circular shaft, on knife bar taper shank 1, change milling cutter, the axis of milling cutter is just in time arranged on the face of circular shaft part.Because sliding sleeve 3 and outer taper shank bar 2 are matched in clearance, thus sliding sleeve 3 outside taper shank bar 2 slide up and down and rotate, rotate for compensating the error of axis of workpiece and milling cutter moving direction, when slotted vane 9 is fallen into translot 12, complete and align.

Further, be provided with the square hole 10 that connects V-block 8 middle parts on described V-block 8, described transverse slat 4 sides and square hole 10 matched in clearance are also located by bearing pin 7, and on described transverse slat 4 upper and lower end faces and square hole 10, lower wall has gap.That is to say that V-block 8 and transverse slat 4 are by assembling, so even if having damage to be also convenient to change.Make separately V-block piece 8 and transverse slat 4 and also guaranteed precision, simultaneously due on transverse slat 4 upper and lower end faces and square hole 10 between lower wall at a distance of certain interval, V-block 8 can be done micro-rotation on vertical plane, for compensating part horizontal error, guarantees that the jaws of V-block 8 contacts with part.

Further, described outer taper shank bar 2 lower ends are the female ladder cylinder of tool, the circular hole that on described transverse slat 4, setting and described ladder cylindrical gap coordinate, and described outer taper shank bar 2 and transverse slat 4 are by screw thread axial limiting.Owing to being matched in clearance between ladder cylinder and circular hole, so transverse slat 4 and V-block 8 can carry out Plane Rotation, can effective compensation axis of workpiece and milling cutter moving parallel degree error.

Further, described V-block 8 sides have rectangular through slot.As shown in the figure, V-block 8 sides have a rectangular through slot, can reduce the contact area of circular shaft part and V-block 8, also make centering more accurate.

The utility model is specifically in when assembling, and as shown in Figure 1, the square hole 10Nei，Liang hole that transverse slat 4 is inserted to V-block 8 as shown in Figure 4 from right-hand member aligns knocks in bearing pin 7 by its solderless wrapped connection; Outer taper shank bar 2 lower end circular shafts insert in transverse slat 4 right-hand member holes, and outer-hexagonal bolts 6 screws in outer taper shank bar 2 lower end screws through pad 5, and transverse slat 4 can rotate around outer taper shank bar 2 lower end circular shafts; To slotted vane 9 engagings, in sliding sleeve 3 draw-in grooves, sliding sleeve 3 endoporus are inserted in the circular shaft face of outer cone handle bar 2, rotatable and slide up and down, and to slotted vane 9, are matched in clearance with the translot 12 of V-block 8; The outer cone of outer taper shank bar 2 upwards pushes in the inner cone of the knife bar taper shank 1 on machine tool chief axis.

Claims

1. face alignment device in a circular shaft, it is characterized in that: comprise V-block (8), described V-block (8) is provided with translot (12) in end face midline, in bottom surface, be provided with the jaws that can hold part to be processed, described jaws comprises the location hypotenuse (11) about the vertical center line symmetry of V-block (8), described V-block (8) is connected with one end of a transverse slat (4) in translot (12) below, described transverse slat (4) centerline is on V-block (8) median plane, described transverse slat (4) other end connects the outer taper shank bar (2) vertical with the center line of transverse slat (4) at vertical direction, the sliding sleeve (3) of the upper setting of described outer taper shank bar (2) and its matched in clearance, on described sliding sleeve (3), arrange slotted vane (9), described is matched in clearance to slotted vane (9) and translot (12).

2. face alignment device in circular shaft according to claim 1, it is characterized in that: described V-block (8) is provided with the square hole (10) that connects V-block (8) middle part at axis direction, described transverse slat (4) side and square hole (10) matched in clearance are also located by bearing pin (7).

3. face alignment device in circular shaft according to claim 2, it is characterized in that: described outer taper shank bar (2) lower end is the female ladder cylinder of tool, the circular hole that the upper setting of described transverse slat (4) and described ladder cylindrical gap coordinate, described outer taper shank bar (2) and transverse slat (4) are by screw thread axial limiting.

4. face alignment device in circular shaft according to claim 3, is characterized in that: between the upper lower wall of described transverse slat (4) upper and lower end face and square hole (10), have gap.

5. face alignment device in circular shaft according to claim 1, is characterized in that: the angle between described location hypotenuse (11) is 90 degree.

6. face alignment device in circular shaft according to claim 1, is characterized in that: described V-block (8) side has rectangular through slot.