CN105499939A - Process for machining volute with round flange as air outlet - Google Patents

Abstract

The invention discloses a process for machining a volute with a round flange as an air outlet. The process includes following steps: 1), taking a plane Z, a central hole F and two positioning points X1 and X2 of a back corner of a pipe orifice as references to machine two reference holes E and K of a face D; 2), performing positioning through a face D reference and the reference holes E and K to machine a face A reference and a reference of C, wherein a face A is an end face of a middle shell end, and C is an inner hole of the middle shell end; 3), performing positioning through the face D reference and the reference holes E and K to machine four back corners B and two threaded holes H1; 4), performing positioning through the face A reference, the reference of C and the face D reference for other machining processes. According to the process, the D reference is machined first, the face A reference and the reference of C are machined by positioning through D, and other machining processes are implemented by positioning through ACD, so that the process has the advantages of high machining stability, convenience in machining and high machining efficiency.

Description

A kind of gas outlet is the spiral case processing technology of circular flange

Technical field

The present invention relates to a kind of spiral case processing technology, particularly relate to the spiral case processing technology that a kind of gas outlet is circular flange.

Background technology

Spiral case in turbocharger, its measuring basis is generally ACD.Wherein A is the end face of middle case end; C is an endoporus of middle case end; D is inlet flange face.Refer to shown in Fig. 1 and Fig. 2, the positioning datum of blank is ZFG.Z is the black skin at middle case end tongue place, close with A; Hole centered by F; Concentric with C hole; G is positioned at the mouth of pipe place of inlet flange face D.General processing technology, because these measuring basis of blank are near initial alignment benchmark, is all first process the flange J that gives vent to anger; Processing gas inlet flange D is located again by J; Or C hole, A face (if inlet flange itself can positioning and directing, also can first process AC out); ACD out after, just complete for locating all the other positions of processing.There is following shortcoming in above-mentioned processing technology:

1) the flange J that gives vent to anger is circular, also needs orientation point just can locate completely;

2) there is eccentric throw with A face, when by its processing D and AC, the relative position in D face and C hole, A face fluctuates comparatively greatly, difficult satisfied stricter position degree requirement during other position of processing, use ACD location;

3) when processing other position with J face as benchmark, because of the shape of itself, clamping poor rigidity;

4) to difficult-to-machine material, J face inherently bottleneck, not easily improves.

Summary of the invention

A kind of gas outlet is the object of the present invention is to provide to be the spiral case processing technology of circular flange, it has good processing stability, the feature that easy to process and working (machining) efficiency is high, to solve the problems referred to above that spiral case that in prior art, gas outlet is circular flange exists in process.

For reaching this object, the present invention by the following technical solutions:

Gas outlet is a spiral case processing technology for circular flange, and it comprises the following steps:

1) be first benchmark with plane Z, centre bore F and mouth of pipe dorsal horn two anchor point X1, X2, process two datum hole E and K in D face; Wherein, Z face is the black skin at middle case end tongue place, and D face is inlet flange face;

2) positioned by D face benchmark and two datum hole E and K, process the benchmark of A face benchmark and C, A face is the end face of middle case end, and C is an endoporus of middle case end;

3) positioned by D face benchmark and two datum hole E and K, process four dorsal horn B and two screw H1;

4) positioned by the benchmark of A face benchmark, C and D face benchmark, carry out other each sequences processing.

Especially, described step 4) in concrete procedure of processing be:

Step one: position the pin-and-hole H2 and M12 screw H3 that process A face by the benchmark of A face benchmark, C and D face benchmark;

Step 2: position processing bush hole H4 and exhaust apertures H5 by the benchmark of A face benchmark, C and D face benchmark;

Step 3: position processing four M6 screw H6 by the benchmark of A face benchmark, C and D face benchmark;

Step 4: position processing M18 screw H7 by the benchmark of A face benchmark, C and D face benchmark.

Beneficial effect of the present invention is, compared with prior art described gas outlet is that the D benchmark of the spiral case processing technology of circular flange first goes out, and is first benchmark; Located by D and process AC, the fluctuation of AC is less, relatively stable; The location processing of other each sequence is all benchmark with D/ACD like this, and positioning datum and measuring basis are unified, and will stablize from the viewpoint of process, and easily reach meeting in figure paper size and position degree, CPK (process capability index) value is higher; Adjust relative to the polarization of blank, machining center will facilitate in adjustment compared to car sequence; In addition, use the content work in-process preprocessing in the heart that D benchmark will be able to be processed these two car sequences, reduce the cutting output of car sequence; Locate processing J face by ACD, fixture easily clamps, good rigidly; These are highly profitable to improving production efficiency.

Accompanying drawing explanation

The spiral case of Fig. 1 to be gas outlet that the specific embodiment of the invention 1 provides be spiral case processing technology of circular flange respectively defines the schematic diagram in face;

The spiral case of Fig. 2 to be gas outlet that the specific embodiment of the invention 1 provides be spiral case processing technology of circular flange respectively defines the another schematic diagram in face;

The schematic diagram of Fig. 3 to be gas outlet that the specific embodiment of the invention 1 provides be mouth of pipe dorsal horn two anchor point of the spiral case of the spiral case processing technology of circular flange;

The schematic diagram of Fig. 4 to be gas outlet that the specific embodiment of the invention 1 provides be two datum holes in the D face of the spiral case of the spiral case processing technology of circular flange;

Fig. 5 is the gas outlet that the specific embodiment of the invention 1 provides is the A face benchmark of the spiral case of the spiral case processing technology of circular flange and the schematic diagram of C benchmark;

The schematic diagram of Fig. 6 to be gas outlet that the specific embodiment of the invention 1 provides be four dorsal horn B and two screw H1 of the spiral case of the spiral case processing technology of circular flange;

The schematic diagram of Fig. 7 to be gas outlet that the specific embodiment of the invention 1 provides be A face pin-and-hole of the spiral case of the spiral case processing technology of circular flange;

The schematic diagram of Fig. 8 to be gas outlet that the specific embodiment of the invention 1 provides be M12 screw of the spiral case of the spiral case processing technology of circular flange;

The bush hole of spiral case and the schematic diagram of exhaust apertures of Fig. 9 to be gas outlet that the specific embodiment of the invention 1 provides be spiral case processing technology of circular flange;

The schematic diagram of Figure 10 to be gas outlet that the specific embodiment of the invention 1 provides be M6 screw of the spiral case of the spiral case processing technology of circular flange;

The schematic diagram of Figure 11 to be gas outlet that the specific embodiment of the invention 1 provides be M18 screw of the spiral case of the spiral case processing technology of circular flange.

Detailed description of the invention

Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.

Refer to shown in Fig. 1 to Figure 11, in the present embodiment, a kind of gas outlet is the spiral case processing technology of circular flange, and for Nissan 3.0 spiral case, it comprises the following steps:

1) be first benchmark with plane Z, centre bore F and mouth of pipe dorsal horn two anchor point X1, X2, process two datum hole E and K in D face; Wherein, Z face is the black skin at middle case end tongue place, and D face is inlet flange face;

2) positioned by D face benchmark and two datum hole E and K, process the benchmark of A face benchmark and C, A face is the end face of middle case end, and C is an endoporus of middle case end;

3) positioned by D face benchmark and two datum hole E and K, process four dorsal horn B and two screw H1;

4) position by the benchmark of A face benchmark, C and D face benchmark the pin-and-hole H2 and M12 screw H3 that process A face;

5) processing bush hole H4 and exhaust apertures H5 is positioned by the benchmark of A face benchmark, C and D face benchmark;

6) processing four M6 screw H6 are positioned by the benchmark of A face benchmark, C and D face benchmark;

7) processing M18 screw H7 is positioned by the benchmark of A face benchmark, C and D face benchmark.

Above embodiment has just set forth general principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (2)

1. gas outlet is a spiral case processing technology for circular flange, and it is characterized in that, it comprises the following steps:

1) be first benchmark with plane Z, centre bore F and mouth of pipe dorsal horn two anchor point X1, X2, process two datum hole E and K in D face; Wherein, Z face is the black skin at middle case end tongue place, and D face is inlet flange face;

2) positioned by D face benchmark and two datum hole E and K, process the benchmark of A face benchmark and C, A face is the end face of middle case end, and C is an endoporus of middle case end;

3) positioned by D face benchmark and two datum hole E and K, process four dorsal horn B and two screw H1

4) positioned by the benchmark of A face benchmark, C and D face benchmark, carry out other each sequences processing.

2. gas outlet according to claim 1 is the spiral case processing technology of circular flange, it is characterized in that, described step 4) in concrete procedure of processing be:

Step one: position the pin-and-hole H2 and M12 screw H3 that process A face by the benchmark of A face benchmark, C and D face benchmark;

Step 2: position processing bush hole H4 and exhaust apertures H5 by the benchmark of A face benchmark, C and D face benchmark;

Step 3: position processing four M6 screw H6 by the benchmark of A face benchmark, C and D face benchmark;

Step 4: position processing M18 screw H7 by the benchmark of A face benchmark, C and D face benchmark.