CN201366524Y

CN201366524Y - Special fixture with fine-turning double-pin location hole pitch

Info

Publication number: CN201366524Y
Application number: CNU2009201147366U
Authority: CN
Inventors: 冯刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2009-12-23
Anticipated expiration: 2019-03-05

Abstract

The utility model relates to a hole-making positioning tool, in particular to a special fixture with fine-turning double-pin location hole pitch. The special fixture comprises a base and a gauge block, wherein a cup head pin with internal screw thread is arranged on the base and is arranged on the base by a lock bolt in a matching way; a spring is arranged between the cup head pin and the lock bolt; and the base is connected with a worktable on a machine tool by a fastener. The special fixture has the advantages that the clearing and cuttings are convenient, and the requirement is not high; the base level is reduced to two-point position from the whole plane, so that the contact precision is improved greatly; the tolerance of the hole pitch can be controlled within 0.03mm; the equipment cost is low, the processing cost is low, and the regulating time is short; therefore, the special fixture is suitable for middle-scale and small-scale production and is particularly favorable for producing a hole pitch drill plate.

Description

The special fixture of band fine setting twin columns finger setting pitch-row

Technical field

The utility model relates to a kind of hole processing orientation tool, especially a kind of special fixture with fine setting twin columns finger setting pitch-row.

Background technology

Boring is one of action of running into often in the pincers worker operation, for the porous operation that has pitch-row to require, is difficulty maximum in the process technology of hole.According to present processing situation, following several form processing: a, line location drilling are arranged; B, measure plugs with two and detect boring; C, usefulness pilot pin machining hole distance; D, process, but all have different pluses and minuses with numerical control machining center equipment.For improving above problem, the high accurate hole that once designed Nover practical is apart from the processing position indicator, and as shown in Figure 1, its structure comprises parts such as pedestal 1, bolt 2, nut 3, slip gauge 4, flat-form material workpiece 5, hole 6, hole 7.Though advantages such as this position indicator has the machining accuracy height, and is easy and simple to handle, and cost of manufacture is cheap have changed above many unfavorable factors.But also there have been some shortcomings, that, workpiece clean as the cleaning of smear metal and slip gauge and slip gauge contact with position indicator is insufficient, contact area is excessive, and the things such as reparation of high accurate hole after

datum level

9,10 breakages of processing position indicator all will influence the mismachining tolerance of pitch-row.

The utility model content

The deficiency that the utility model exists at prior art, purpose are to provide a kind of and help clearing up smear metal conveniently, improve machining accuracy, the special fixture of the band that is suitable for producing in batches fine setting twin columns finger setting pitch-row.

The technical scheme of the utility model technical solution problem is as follows: a kind of special fixture with fine setting twin columns finger setting pitch-row, comprise pedestal, slip gauge, it is characterized in that: pedestal is provided with the cuphead pilotage of band internal thread hole, cuphead pilotage is installed on the pedestal by the lock-screw cooperation, and between cuphead pilotage and the lock-screw spring is installed, pedestal links to each other with workbench on the lathe by securing member.

The utility model further is set to:

The rectangular bar shaped of described pedestal, the back side of its vertical and horizontal all is provided with flat through-hole groove, and lock-screw and cuphead pilotage are installed in the flat through-hole groove.

The quantity of described lock-screw and cuphead pilotage is four pairs, all corresponding two pairs of lock-screws and the cuphead pilotage installed in the flat through-hole groove of the vertical and horizontal face of pedestal.

Described securing member is a hexagonal counterbore screw, and pedestal is provided with the flat screw that matches with hexagonal counterbore screw.

The utility model is to do further improvement at the high accurate hole of prior art on the basis of processing position indicator, has overcome the deficiencies in the prior art part.Make the cleaning smear metal convenient, less demanding; Datum level is reduced to 2 points by whole face, and contact precision is improved significantly; The pitch-row tolerance can be controlled within 0.03, equipment cost is very low, low processing cost, adjustment time short, be applicable in, in the small serial production occasion, be more conducive to manufacturing hole apart from drill jig.

Operation principle of the present utility model is: two groups of tapped cuphead pilotages respectively have been installed on the pedestal of this special fixture, constitute orthogonal coordinate, as the measuring basis face, with the slip gauge use that mutually combines, form one group of rectangular co-ordinate, another group rectangular co-ordinate is that the hole branch on the workpiece is clipped to workpiece self two measuring basis hole back gauges, and the size of slip gauge size is determined according to the size of hole back gauge.

Below in conjunction with description of drawings and embodiment the utility model is described in further detail.

Description of drawings

Fig. 1 is the overall structure schematic diagram of prior art;

Fig. 2 is an overall structure schematic diagram of the present utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is an A portion structure for amplifying schematic diagram among Fig. 2;

Fig. 5-a, b, c, d are process operation flow chart of the present utility model

The specific embodiment

A kind of special fixture with fine setting twin columns finger setting pitch-row is as Fig. 2, Fig. 3, shown in Figure 4.Comprise pedestal 1, slip gauge 16, pedestal 1 rectangular bar shaped, the back side of its vertical and horizontal all is provided with flat through-

hole groove

6,1 is provided with the cuphead pilotage 4 of band internal thread hole 41, and tight screw 2 and cuphead pilotage 4 are installed in the flat through-hole groove 6, the quantity of lock-screw 2 and cuphead pilotage 4 is four pairs, all corresponding two pairs of lock-screws 2 and the cuphead pilotage 4 installed in the flat through-hole groove 6 of the vertical and horizontal face of pedestal 1.Between cuphead pilotage 4 and the lock-screw 2 spring 5 is installed, promptly take on 42 in spring 5 to the hole at cuphead pilotage internal thread hole 41, and the inner face of the screw 2 that is locked compresses.Pedestal 1 links to each other with workbench on the lathe by securing member 9, and promptly this securing member 9 is a hexagonal counterbore screw, and 1 is provided with the flat screw 3 that matches with hexagonal counterbore screw on the pedestal.The quantity of hexagonal counterbore screw is three, evenly the end points position of pedestal is fixed on the workbench, plays firm effect.

Wherein, the cuphead pilotage 4 of band internal thread hole 41 is installed in the flat through-hole groove 6 in the pedestal 1, connect locking with lock-screw 2 and spring 5, unclamp lock-screw 2, can make tapped cuphead pilotage 4 respectively along x, y two direction translations, adjust to corresponding dimension width, principle according to 2 definite straight lines, the face that contacts with benchmark is just much little like this, be that contact precision is greatly improved, two prescriptions to vertical coordinate, can proofread correction with the square of standard, two groups of vertical coordinates can be adjusted at any time.

During process operation, at first be fixed on the work top of drilling machine by three hexagonal counterbore screws 9, adjust respectively four tapped cuphead pilotages 4 x to y to linearity and perpendicularity.Adjustment finishes, and workpiece 7 is contacted with the tapped cuphead pilotage 4 of two groups of rectangular co-ordinates, compresses workpiece 7 then, bores first hole 8, as datum hole 8, shown in Fig. 5-a.Hole 8 completion of processing, unload workpiece 7, along on the x direction, between the cuphead pilotage 4 of workpiece 7 and two band internal thread holes, put into a slip gauge, and slip gauge is of a size of the pitch-row size in hole 8 and hole 12, compresses workpiece 7 borings 12, completion of processing, the pitch-row in their two holes is the slip gauge size, meets processing request, shown in Fig. 5-b.Hole 12 completion of processing, unload workpiece 7, along on the y direction, between the cuphead pilotage 4 of workpiece 7 and two band internal thread holes, put into a slip gauge, and slip gauge is of a size of the pitch-row size in hole 12 and hole 10, compresses workpiece 7 borings 10, completion of processing, the pitch-row in their two holes is the slip gauge size, meets processing request, shown in Fig. 5-c.Hole 10 completion of processing, unload workpiece 7, along on the x direction, between the cuphead pilotage 4 of workpiece 7 and two band internal thread holes, unload slip gauge, and the slip gauge that unloads is of a size of the pitch-row size in hole 10 and hole 11, compresses workpiece 7 borings 11, completion of processing, the pitch-row in their two holes is the slip gauge size, meets processing request, shown in Fig. 5-d.

More than be the utility model claimed a kind of typical embodiment, according to the size difference of each pitch-row, as long as change slip gauge size with its consistent size, the pitch-row of completion of processing meets the drawing processing request fully like this.

Claims

1, a kind of special fixture with fine setting twin columns finger setting pitch-row, comprise pedestal (1), slip gauge (16), it is characterized in that: pedestal (1) is provided with the cuphead pilotage (4) of band internal thread hole (41), cuphead pilotage (4) is installed on the pedestal (1) by lock-screw (2) cooperation, and between cuphead pilotage (4) and the lock-screw (2) spring (5) is installed, pedestal (1) links to each other with workbench on the lathe by securing member (9).

2, a kind of special fixture according to claim 1 with fine setting twin columns finger setting pitch-row, it is characterized in that: at right angles bar shaped of described pedestal (1), the back side of its vertical and horizontal all is provided with flat through-hole groove (6), and lock-screw (2) and cuphead pilotage (4) are installed in the flat through-hole groove (6).

3, a kind of special fixture according to claim 1 and 2 with fine setting twin columns finger setting pitch-row, it is characterized in that: the quantity of described lock-screw (2) and cuphead pilotage (4) is four pairs, all corresponding two pairs of lock-screws (2) and the cuphead pilotage (4) installed in the flat through-hole groove (6) of the vertical and horizontal face of pedestal (1).

4, a kind of special fixture with fine setting twin columns finger setting pitch-row according to claim 1, it is characterized in that: described securing member (9) is a hexagonal counterbore screw, and (1) is provided with the flat screw (3) that matches with hexagonal counterbore screw on the pedestal.