CN2141887Y

CN2141887Y - Arc quick alignment instrument

Info

Publication number: CN2141887Y
Application number: CN 92242300
Authority: CN
Inventors: 江永伦
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-02
Filing date: 1992-12-02
Publication date: 1993-09-08
Anticipated expiration: 2002-12-02

Abstract

The utility model discloses a quick alignment appearance of circular arc for confirming work piece circular arc center, include the locating component who uses lathe rotary worktable as the benchmark, support the alignment subassembly that is used for confirming the circular arc center on the locating component, the locating component comprises scale bottom plate and rather than sliding connection's removable circular arc locating block, the alignment subassembly comprises isosceles trapezoid connecting plate and rather than two waist parallel connection's owner, vice chi. Has the advantages of wide application range, convenient assembly, accurate positioning, high speed and the like.

Description

Fast arc aligner

The utility model relates to a kind of quick alignment instrument of circular arc of determining workpiece center of arc with mechanical means.

On milling machine or slotting machine during the workpiece of processing belt circular arc, need be on rotary table center of arc's (being the center of circle) of centering work piece, usual way is to draw good circular arc line on workpiece blank, on the cutter of lathe, fix a sharp shaped material, as on cutter, using the bonding pin of butter, work piece is placed on the rotary table, make the pin needle point aim on the circular arc line a bit earlier, and then rotate rotary table repeatedly, have a few is aimed at pin, clamp work piece at last and process, this method not only bothers but also inaccurate." mechanical technology teacher " introduced once on 1991 the 10th phases that a kind of " determine the method for part " center " on the digital display milling machine, promptly three of the digital display milling machine coordinates connect a ball bearing made using respectively by three digital display meter independent displaying on milling machine, determine the part center.Though this device centering center is simple, does not have versatility, only is applicable to digital display machinery, and will be according to the concrete shaped design unit clamp or the use built-up jig of workpiece, for single and mini-batch production production cost expense height.

The purpose of this utility model provides a kind of easy to assembly, and is applied widely, locatees the quick alignment instrument of accurate, fireballing circular arc.

The utility model is achieved in that a kind of quick alignment instrument of circular arc that is used for determining workpiece center of arc, comprise with the machine tool rotary working table being the positioning component of benchmark, be supported on the centering assembly that is used for determining workpiece center of arc on the positioning component, said positioning component comprises the base plate with expression rotary table radius scale, be positioned at below the base plate and with one side that base plate is slidingly connected be the plane, the removable circular arc locating piece that another side and rotary table cylindrical match, said centering assembly comprises that one is positioned at base plate top and isosceles trapezoid web joint in parallel, with parallel connected secondary chi of web joint two waists and vernier main scale, one end of vernier main scale has the fine setting contact, web joint central authorities are slidingly connected with a support bar perpendicular to web joint, and support bar is fixed in the central authorities of base plate.

The utility model has the advantages that and utilize circular arc locating piece and band graduated base to make positioning component, with the rotary table is benchmark, with vernier main scale and secondary chi centering workpiece center of arc, accurate positioning, speed is fast, changes the rotary table of the applicable different radii of different circular arc locating pieces, and lifting web joint and vernier scale are applicable to the workpiece of different-thickness, applied widely, and easy to assembly.

Now in conjunction with the accompanying drawings and embodiments the utility model is described specifically:

Fig. 1 is the quick alignment instrument structural representation of circular arc;

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

Fig. 3 be among Fig. 2 A-A to view;

Fig. 4 is the top view of circular arc locating piece;

Fig. 5 is that the B-B of Fig. 4 is to cut-open view;

Fig. 6 is the base top view of band scale;

Fig. 7 is that the C-C of Fig. 6 is to cut-open view;

Fig. 8 is the top view of isosceles trapezoid web joint;

Fig. 9 is that the D-D of Fig. 8 is to cut-open view.

As depicted in figs. 1 and 2, a kind of quick alignment instrument of circular arc that is used for determining workpiece center of arc, comprise with the machine tool rotary working table being the positioning component of benchmark, be supported on the centering assembly that is used for determining workpiece center of arc on the positioning component, positioning component comprises the base plate 3 with expression rotary table 1 radius scale, be positioned at below the base plate 3 and with one side that base plate 3 is slidingly connected be the plane, the removable circular arc locating piece 2 that another side and rotary table 1 cylindrical match, the centering assembly comprises that one is positioned at base plate 3 tops and the isosceles trapezoid web joint 6 parallel with base plate 3, with parallel connected secondary chi 11 of 6 liang of waists of web joint and vernier main scale 9, one end of vernier main scale 9 has fine setting contact 10, web joint 6 central authorities are slidingly connected the central authorities that base plate 3 is fixed in support bar 7 lower ends with a support bar 7 perpendicular to web joint 6.Fine setting contact 10 is installed in the screw of vernier main scale 9 one ends by screw thread in the present embodiment.As shown in Figure 3, vernier main scale 9 and secondary chi 11 are that vernier main scale 9 can slide by secondary relatively chi 11 by on parallel two waists that are connected web joint 6 of Connection Block 14, pressing plate 12, press strip 13, determining the radius size of workpiece 15, and locate with screw.As shown in Figure 4 and Figure 5, the one side of circular arc locating piece 2 is the plane, another side is the arc surface that matches with rotary table 1 cylindrical, it is a series of removable assembly of making according to the rotary table 1 of different radii, for the quick alignment instrument of a kind of circular arc of specification, the recess of circular arc all should equate to the distance P S of its opposite side on each circular arc locating piece 2, so that use when installing, its arc surface and rotary table 1 periphery coincide and are adjacent to, and its straight flange can align with the radius scale mark on the base plate 3.As shown in Figure 6 and Figure 7, be carved with the scale mark of expression rotary table 1 radius on the base plate 3, the distance between two scale marks generally with 5mm for well, base plate 3 both sides have elongated slot, circular arc locating piece 2 is positioned in the elongated slot by screw, can slide relatively.Xsect is that square support bar 7 passes through flute profile locating piece 5, side plate 4 and screw retention in the central authorities of base plate 3.As Fig. 8 and shown in Figure 9, isosceles trapezoid web joint 6 central authorities have the square hole that matches with support bar 7 xsects, support bar 7 passes square hole, and organize flute profile locating piece, side plate and screw by another and realize both being slidingly connected, lifting web joint 6 and

vernier scale

9,11 can adapt to the location of different-thickness workpiece circular arc.The said modules main material is the measuring and cutting tool steel, as 9SiCr, CrWMn through hot and cold processing, grinding, chromium plating is made.For ease of this alignment instrument is installed on the rotary table 1, also be provided with the movable magnet base of belt switch on the base plate 3.

During use, radius size according to machine tool rotary working table 1, select corresponding circular arc locating piece 2, make the scale mark positioned in alignment of expression rotary table 1 radius on the straight flange of circular arc locating piece 2 and the base plate 3, alignment instrument is installed on the rotary table 1 with movable magnet base, the arc surface and rotary table 1 periphery of circular arc locating piece 2 are adjacent to, circular arc line on the workpiece 15 is drawn in advance, size adjustment two vernier main scales 9 according to the arc radius R value of workpiece 15, make it be positioned R value place on the chi, workpiece 15 is placed on the rotary table 1, the position of adjusting workpiece 15 makes on its circular arc line contact with two fine setting contacts 10 respectively at any 2, and the center of arc of workpiece 15 promptly overlaps clamping work pieces 15 with the center of circle of rotary table 1 at this moment, unload alignment instrument, can process.

Claims

1, a kind of quick alignment instrument of circular arc that is used for determining workpiece center of arc, comprise with the machine tool rotary working table being the positioning component of benchmark, be supported on the centering assembly that is used for determining workpiece center of arc on the positioning component, it is characterized in that positioning component comprises the base plate (3) with expression rotary table 1 radius scale, be positioned at below the base plate (3) and with one side that base plate (3) is slidingly connected be the plane, the removable circular arc locating piece (2) that another side and rotary table (1) periphery matches, the centering assembly comprises that one is positioned at base plate (3) top and the isosceles trapezoid web joint (6) parallel with base plate (3), with web joint parallel connected secondary chis of (6) two waists (11) and vernier main scale (9), one end of vernier main scale (9) has fine setting contact (10), web joint (6) central authorities are slidingly connected the central authorities that base plate (3) are fixed in support bar (7) lower end with a support bar perpendicular to web joint (6) (7).

2, according to the quick alignment instrument of the said a kind of circular arc of claim 1, it is characterized in that base plate (3) is provided with the movable magnet base (8) of belt switch, the recess of all removable circular arc locating piece (2) circular arcs all equates to the distance of opposite side.