CN206277098U - A kind of fuel injector punching type fixed plate and its assembly tooling - Google Patents

Abstract

The utility model discloses a kind of fuel injector punching type fixed plate and its assembly tooling, solve the problems, such as that the fuel injector fixed plate manufactured by conventional cast forging is subsequently machined complicated, scrappage and is more expensive to manufacture.Include two bending plates being oppositely arranged, bending plate includes a kink, No. two kinks and connection a number kink and No. two transition parts of kink, a number kink inwall is provided with half slot, the outer end of a number kink is provided with one number service hole, two pieces of bending plate kinks are fitted relatively, two kinks are welded to each other near the joint place of transition part, two one number service holes are fixed by rivet, two No. two kinks constitute clamping part, two half slots constitute hold-down apertures, and two kinks constitute compressed part.The utility model constitutes fuel injector fixed plate by the bending plate that riveted and welded form is processed two pieces, and not only easy to process, product rejection rate is low, and is also greatly reduced the cost of manufacture.

Description

A kind of fuel injector punching type fixed plate and its assembly tooling

Technical field

The utility model is related to technical field of engines, and in particular to a kind of fuel injector punching type fixed plate and its assembling Frock.

Background technology

Fuel injector fixed plate generally comprises fixed plate body, and its middle part is provided with hold-down apertures, and fixed spiral shell is provided with hold-down apertures Bolt, one end of fixed plate body is the clamping part for clamping fuel injector, and the other end is the compressed part being pressed in cylinder head.China Forged using medium carbon steel or medium carbon alloy steel such as 40Cr more than Automobile Parts Industry engine fuel injector fixed plate, it is subsequently heat-treated It is quenched, then machine.Forge processing fuel injector fixed plate subsequently machine relatively complicated cumbersome, scrappage it is high and also system Cause this high.

With the development of science and technology, the continuous advancement of engine technology, people improve constantly to engine emission requirements, more next More engine parts use scientific design, it is desirable to which scrappage is low, processing is simple, low cost of manufacture, production process energy-conservation, Forging the fuel injector fixed plate of processing cannot increasingly meet the demand of people.

Utility model content

Complicated, scrappage and system are subsequently machined in order to solve the fuel injector fixed plate manufactured by conventional cast forging The problem of high cost is made, the utility model provides a kind of fuel injector punching type fixed plate and its processing method and assembly tooling.

The technical solution adopted in the utility model is as follows：

A kind of fuel injector punching type fixed plate, includes two bending plates being oppositely arranged, and the bending plate includes No. one Kink, No. two kinks and connection a number kink and No. two transition parts of kink, a kink inwall set The outer end for having half slot a, kink is provided with one number service hole, and the two pieces of bending plate kinks are fitted relatively, Two kinks are welded to each other near the joint place of transition part, and two one number service holes are fixed by rivet, and two Individual No. two kinks constitute clamping part, and two half slots constitute hold-down apertures, and two kinks constitute pressure Tight portion.

The bending plate material is cold-rolled steel.

The upper surface of the transition part is provided with the groove surface for being adapted to fuel injector.

The bending plate is molded using integrated punching.

The bending part of the bending plate is equipped with fillet.

Two kinks constitute notch with the fillet of transition part, and the notch weldering is flat.

A kind of processing method of fuel injector punching type fixed plate, it is characterized in that step is as follows：A. cold-rolled steel sheet conduct is chosen Raw material；B. bending plate is integrally formed by stamping machine；C. mutual riveted after two pieces of bending plates are clamped using frock；d. Two kinks are welded near the joint place of transition part；E. two pieces of bending plate surfaces after being molded are oozed Carbon quenching heat treatment.

Cold steel plate of pounding in the step a is the 20# steel of 4-6mm.

It is built-up welding welding manner in the step d.

A kind of assembly tooling in fuel injector punching type fixed plate processing method, it is characterised in that：Including lower block, front Block and backstop, the lower block include a supporting surface and No. two supporting surfaces, a kink outer wall and a support Face is fitted, and No. two kink outer walls are fitted with No. two supporting surfaces, and a kink upper side wall is fitted with positive stop, A number kink lower wall is fitted with No. two kink lower walls with backstop, and the backstop is provided with and two semicircles No. two concentric through holes of groove, No. two through holes are provided with locating shaft, and the locating shaft is applied in by two and half by No. two through holes In the hold-down apertures that circular groove is formed, rivet is provided with the one number service hole, die just is provided with to one number service hole top.

The beneficial effects of the utility model are：

The utility model constitutes fuel injector fixed plate by the bending plate that riveted and welded form is processed two pieces, no Only easy to process, product rejection rate is low, and is also greatly reduced the cost of manufacture.

Brief description of the drawings

Fig. 1 is the schematic diagram of existing fuel injector fixed plate.

Fig. 2 is the schematic diagram of prior art.

Fig. 3 is the exploded perspective view of the utility model embodiment.

Fig. 4 is the unwelded schematic diagram of the utility model notch.

Fig. 5 is the schematic diagram that the utility model notch heap is soldered.

Fig. 6 is the schematic diagram of the utility model bending plate outer wall.

Fig. 7 is the schematic diagram of the utility model bending plate inwall.

Fig. 8 is the schematic diagram of the utility model frock.

Fig. 9 is the schematic diagram of the utility model frock blast.

Figure 10 is the schematic diagram of the utility model technological process.

Fixing bolt 01, fuel injector 02, cylinder head 03, ball ring 04, fixed plate body 1, through hole 2, clamping part 3, compression Portion 4,5, kink 51 of bending plate, 52, No. two kinks 53 of transition part, half slot 54, one number service hole 55, groove surface 56, Rivet 6, the supporting surface 71, two of a lower block 7, supporting surface 72, positive stop 8, first 10, No. two through holes 11 of backstop 9, riveting, On locating shaft 12,13, kink inwall A of notch, a kink outer wall B, No. two kink outer wall C, a kink Side wall D, kink lower wall E, a No. two kink lower wall F.

Specific embodiment

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：

In embodiment, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 7, a kind of fuel injector punching type fixed plate, include two it is relative The bending plate 5 of setting, the bending plate 5 include 51, No. two kinks 53 of a kink and number kink 51 of connection with No. two transition parts of kink 53 52, the kink inwall A is provided with half slot 54, the outer end of a kink 51 One number service hole 55 is provided with, the two pieces of bending plate 5 kinks 51 are fitted relatively, and two kinks 51 are close to The joint place of transition part 52 is welded to each other, and two one number service holes 55 are fixed by rivet 6, two No. two kinks 53 Clamping part 3 is constituted, two half slots 54 constitute hold-down apertures 2, and two kinks 51 constitute compressed part 4.Pass through The bending plate 5 that riveted and welded form is processed two pieces constitutes fuel injector fixed plate, not only easy to process, product rejection rate It is low, and it is also greatly reduced the cost of manufacture.

In embodiment, the material of the bending plate 5 is cold-rolled steel.Cold-rolled steel thickness is uniform, and surface is smooth, cheap.

In embodiment, the upper surface of the transition part 52 is provided with the groove surface 56 for being adapted to fuel injector.Can be with spray It is even closer that oily device is fitted.

In embodiment, as shown in figure 3, the bending plate 5 is molded using integrated punching.Bending plate 5 is stamping to avoid forging Make consumption and environmental pollution that process is heated, forged, polishing to the energy, stamping equipment is conventional equipment, low production cost, Production efficiency is high, and accessory size is ensured by mould, and dimensional uniformity more preferably, meets the modern productions such as Lean Manufacturing, energy-saving and environmental protection Manufacturing philosophy.

In embodiment, as shown in figure 3, the bending part of the bending plate 5 is equipped with fillet.The fillet of embodiment is on the one hand It is easy to discharge stress, it is ensured that the intensity of fixed plate；On the other hand it is easy to the fine setting of clamping part 3 and fuel injector position.

In embodiment, as shown in Figure 4, Figure 5, two kinks 51 constitute notch with the fillet of transition part 52 13, the weldering of the notch 13 is flat.Notch 13 is welded two pieces of gaps of the joint place of bending plate 5 of flat reparation, joint place is mutually integrated, made Part is more attractive.

In embodiment, as shown in Figure 10, a kind of processing method of fuel injector punching type fixed plate, step is as follows：A. choose Cold-rolled steel sheet is used as raw material；B. bending plate 5 is integrally formed by stamping machine；C. two pieces of bending plates 5 are clamped using frock Mutual riveted afterwards；D. two kinks 51 are welded near the joint place of transition part 52；E. two pieces of institutes after being molded Stating the surface of bending plate 5 carries out carburizing and quenching.By after surface treatment, case hardness is HV620-720, corresponding is anti- Tensile strength is 1900-2100MPa；The power 35KN that can bear by common M10 bolts as input load, by after analysis, spray Oily device pressing plate reaches 1337MPa, under product under the pressure effect of 35KN in the local maxima stress suffered by fixed position The fixed position at end；Maximum deformation quantity is 0.0593mm, and overall deformation amount is smaller, and after Transform Type design, product maximum stress is not 952MPa, positioned at lower end fixed position；Maximum deformation quantity is 0.0353mm, and overall deformation amount is smaller；By Transform Type design, product Suffered maximum stress and maximum deformation quantity has a certain degree of reduction, meets product design demand.

In embodiment, the cold steel plate of pounding in the step a is the 20# steel of 4-6mm.The thickness of steel plate according to actual needs and Selection, usually from the steel plate of 4-6mm, steel plate materialses are preferably 20# steel, naturally it is also possible to from the steel of other models.

It is built-up welding welding manner in embodiment, in the step d.Built-up welding can be two pieces of sutures of the joint place of bending plate 5 Be integrated, make its more firmly with it is attractive in appearance.

In embodiment, as shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, the assembling in a kind of fuel injector punching type fixed plate processing method Frock, including lower block 7, positive stop 8 and backstop 9, the lower block 7 include a supporting surface 71 and No. two supporting surfaces 72, A number kink outer wall B fits with a supporting surface 71, and No. two kink outer wall C fit with No. two supporting surfaces 72, A number kink upper side wall D fits with positive stop 8, a kink lower wall E and No. two kink lower wall F Fitted with backstop 9, the backstop 9 is provided with No. two through holes 11 concentric with two half slots 54, No. two through holes 11 Locating shaft 12 is provided with, the locating shaft 12 is applied in the hold-down apertures 2 formed by two half slots 54 by No. two through holes 11, institute State and rivet 6 is provided with one number service hole 55, riveting first 10 just is provided with to the top of the one number service hole 55.Locating shaft 12 ensure that two pieces Bending plate 5 is circumferentially positioned, prevents it from moving left and right, lower block 7, positive stop 8 and backstop 9 again to two pieces of bending plates 5 before and after All done with lower section spacing, it is ensured that riveting first 10 can accurately riveting.

Obviously, above-described embodiment of the present utility model is merely to illustrate that the utility model example, and not Restriction to implementation method of the present utility model.For those of ordinary skill in the field, on the basis of described above On can also make the change or variation of other multi-forms.There is no need and unable to give poor example to all of implementation method. And these belong to obvious change that connotation of the present utility model amplifies out or variation still falls within the utility model Protection domain.

Claims (7)

1. a kind of fuel injector punching type fixed plate, it is characterised in that：Include two bending plates being oppositely arranged（5）, it is described curved Folded plate（5）Including a kink（51）, No. two kinks（53）And a number kink of connection（51）With No. two kinks （53）Transition part（52）, a kink inwall (A) is provided with half slot（54）, a kink（51）Outer end It is provided with one number service hole（55）, two pieces of bending plates（5）A kink（51）Relative laminating, two kinks （51）Near transition part（52）Joint place be welded to each other, two one number service holes（55）By rivet（6）It is fixed, two institutes State No. two kinks（53）Constitute clamping part（3）, two half slots（54）Constitute hold-down apertures（2）, two described No. one curved Folding part（51）Constitute compressed part（4）.

2. a kind of fuel injector punching type fixed plate according to claim 1, it is characterised in that：The bending plate（5）Material It is cold-rolled steel.

3. a kind of fuel injector punching type fixed plate according to claim 1, it is characterised in that：The transition part（52）It is upper End face is provided with the groove surface for being adapted to fuel injector（56）.

4. a kind of fuel injector punching type fixed plate according to claim 1 or 2 or 3, it is characterised in that：The bending plate （5）It is molded using integrated punching.

5. a kind of fuel injector punching type fixed plate according to claim 1, it is characterised in that：The bending plate（5）Folding Turn of bilge position is equipped with fillet.

6. a kind of fuel injector punching type fixed plate according to claim 5, it is characterised in that：Two kinks （51）With transition part（52）Fillet constitute notch（13）, the notch（13）Weldering is flat.

7. a kind of assembly tooling of fuel injector punching type fixed plate as described in claim 1, it is characterised in that：Including lower block Block（7）, positive stop（8）With backstop（9）, the lower block（7）Including a supporting surface（71）With No. two supporting surfaces（72）, institute State a kink outer wall (B) and a supporting surface（71）Laminating, No. two kink outer walls (C) and No. two supporting surfaces（72） Laminating, a kink upper side wall (D) and positive stop（8）Laminating, a kink lower wall（E）It is curved with No. two Folding part lower wall (F) is fitted with backstop (9), and the backstop (9) is provided with and two half slots（54）Concentric No. two are led to Hole (11), No. two through holes (11) are provided with locating shaft (12), the locating shaft（12) by No. two through holes (11) be applied in by Two half slots（54）The hold-down apertures of formation（2）In, one number service hole (55) place is provided with rivet（6）, just to the one number service Hole (55) top is provided with riveting head (10).