CN218151213U

CN218151213U - Injector body and injector body semi-finished product

Info

Publication number: CN218151213U
Application number: CN202222465359.9U
Authority: CN
Inventors: 范嫦娥
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-12-27
Anticipated expiration: 2032-09-16

Abstract

The utility model provides a semi-manufactured goods of injector, including the base member, set up in convex body on the base member and set up the piston body for the other end of convex body on the base member, one side of base member is outstanding to form the nasal part, the nasal part outside forms the machined surface on the bisector plane of base member, the machined surface with the central axis acutangular angle of base member. The utility model also provides an injector body of making through above-mentioned injector body semi-manufactured goods. Through the scheme, the semi-finished product can be processed by only removing less excess materials in the process of forming the oil injector body, and the processing procedures are reduced.

Description

Injector body and injector body semi-finished product

Technical Field

The present invention relates to the field of mechanical design and manufacturing, and more particularly to a conveniently processed injector body, a semi-finished product thereof, and a processing method thereof.

Background

The oil injectors are important parts applied to high-pressure oil injection, the number of the oil injectors corresponds to the number of cylinders on a vehicle, and therefore the processing of the oil injectors is an important ring in the processing of automobile parts. The general processing method of the oil injector body in the oil injector is that firstly, a semi-finished product is manufactured, and then, the oil injector body is further processed and finished on the basis of the semi-finished product. The semi-finished product of the oil injector body is generally finished by forging, the machining process is relatively simple, and a foundation is provided for subsequent machining procedures.

Referring to fig. 1, the semi-finished product of the injector body includes a base 90, and a protrusion 91 and a piston 92 disposed at two ends of the base 90. A nose 901 is formed on one side of the base 10 and protrudes outwards, and the nose 901 is provided for processing a connecting part of a subsequent oil injector body for connecting a high-pressure oil pipe. The nose 901 has an arc-shaped circumferential surface formed by a line segment parallel to the central axis of the injector body rotating around the central axis. The nose 901 has a horizontal surface 903 perpendicular to the circumferential surface at the upper end thereof, and the horizontal surface 903 serves as a reference surface for other processing.

However, when the connection surface is finally formed, the connection surface forms a certain angle with the central axis of the injector body, thereby facilitating the arrangement of the connection portion. Therefore, when the connecting portion is processed, a thick excess portion needs to be removed from the nose portion 901. Given the safety margin of machining, multiple cuts are often required to reach the final usable connection. Therefore, the machining process is longer, the noise generated by machining is higher, and the scrap iron generated by cutting is more. In addition, since the horizontal surface 903 of the nose portion 901 is used as a machining reference surface, the cutting of the nose portion 901 must be performed at a later stage of the machining program, and the degree of freedom in setting the machining program is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple oil sprayer body of processing, its semi-manufactured goods.

In order to accomplish the above object of the present invention, the present invention provides a semi-finished product of injector, including a base, set up in convex body on the base and set up the piston body for the other end of convex body on the base, one side of base is outstanding to form the nasal part, wherein, the nasal part outside forms the machined surface on the plane is divided equally to the base, the machined surface with the central axis acutangular angle of base.

The utility model discloses still have following characteristic, the shaping is forged to the machined surface.

The utility model discloses still have following characteristic, the machined surface with the contained angle of the central axis of base member is between 37 degrees to 75 degrees.

The utility model discloses following characteristic still has, the free end face of convex body forms the semi-manufactured goods's of injector processing reference surface, free end face with the central axis of base member is perpendicular.

To accomplish the above object of the present invention, the present invention provides an injector body, wherein the injector body is made by the above-mentioned injector body semi-finished product, and the connection surface is formed by removing 1 to 4mm of the thickness of the machined surface along the surface of the machined surface.

The utility model discloses still have following characteristic, connect face department and form the connecting hole of connecting high pressure fuel pipe, the connecting hole perpendicular to connect the face setting.

Use the utility model discloses an injector body semi-manufactured goods because the machined surface that the nasal part formed and the central axis of injector body form sharp contained angle, add other man-hour only need get rid of thickness less clout can, the procedure of processing is simple.

Drawings

Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, it being understood that the embodiments described below are merely illustrative of the present application and do not limit the scope of the present application, and in which:

fig. 1 is a schematic structural diagram of a semi-finished product of an injector body in the prior art of the present invention.

Fig. 2 is a schematic structural view of an embodiment of the semi-finished product of the injector body of the present invention.

Fig. 3 is a schematic structural view of an embodiment of the injector body of the present invention.

Fig. 4 is a flow chart of an embodiment of a method of manufacturing an injector body of the present invention.

Detailed Description

It should be understood that the drawings are for illustrative purposes only and are not intended to limit the application.

Please refer to fig. 2, which shows the structure of the injector body and the semi-finished product thereof according to the present invention. The semi-finished product of the oil injector body comprises a base body 10, a convex body 11 is arranged at the upper end of the base body 10, and the free tail end surface of the convex body 11 is 111. On the other end of the base body 10 opposite the boss 10, a piston body 12 is arranged, in which piston body 12 a piston cavity is formed after the injector has been manufactured. A nose 101 protrudes outwardly from one side of the base body 10, which nose 101 has a machined surface 102 which, in a bisector plane of the base body 10, forms an acute angle with the centre axis of said base body 10, in particular the end of the nose 101 which is adjacent to the nose 11 is thinner than the end which is adjacent to the piston body 12. By bisecting plane is meant a plane passing through the central axis of the base body and bisecting said injector body into two symmetrical parts. In the present embodiment, the included angle is 45 degrees, and the machined surface 102 gradually separates from the central axis of the base body 10 in the direction from the protrusion 10 to the piston body 12. In some embodiments, including the present embodiment, the base body 10, including the nose portion 101 and the machined surface 102 thereof, are formed by a forging process. In other embodiments, the included angle between the machined surface 102 and the central axis of the base 10 is between 37 degrees and 75 degrees, depending on the requirements of the subsequent process at the connection formed on the nose 101.

Please continue to refer to fig. 4, which illustrates a process of manufacturing a fuel injector from the semi-finished fuel injector body of the present invention. In the first semi-finished step S001 of machining, the above-mentioned injector assembly is finished, and then the fixing step S002 of fixing the injector body semi-finished product on the machining equipment with the free end surface 111 of the convex body 10 as a machining reference surface is performed, the free end surface 111 being perpendicular to the central axis of the base body 10. Then, a processing step S003 is performed to remove a part of the thickness along the processed surface to form the connection surface 105. In some examples, including this example, the thickness of the discard removed in the processing step S003 was 1.5mm, and the cutting was performed once. Of course, in other embodiments, a thickness of the remainder may be maintained between 1-4mm, which may support completion using one or two cuts. Finally, a further machining step S004 is carried out, i.e. the injector body is subjected to further machining, such as drilling of connection bores, boring of piston bores, etc. In other embodiments, the processing contents of the processing step S003 and the processing step S004 may be adjusted, for example, the processing contents of the other processing step S004 are performed first, and then the processing step S003 is performed. The machining step S003 is not limited to cutting, and other machining methods may be used.

The finished injector body is shown in fig. 3, a connection surface 105 is formed after the machining surface 102 is machined, and a connection hole 108 perpendicular to the connection surface 105 is drilled in the connection surface 105 for connecting a high-pressure oil pipe.

The present application is described in detail above with reference to specific embodiments. It is to be understood that both the foregoing description and the embodiments shown in the drawings are to be considered exemplary and not restrictive of the application. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit of the application, and these changes and modifications do not depart from the scope of the application.

Claims

1. A semi-finished product of an oil injector body comprises a base body (10), a convex body (11) arranged on the base body (10) and a piston body (12) arranged on the base body (10) and opposite to the other end of the convex body (10), wherein one side of the base body (10) protrudes to form a nose part (101), and the semi-finished product is characterized in that a processing surface (102) is formed on the outer side of the nose part (101), and the processing surface (102) and the central axis of the base body (10) form an acute angle on a bisection plane of the base body (10).

2. The semi-finished oil injector body according to claim 1, wherein the machining surface (102) is forged.

3. The semi-finished product of an oil injector body according to claim 1, wherein the angle between the machined surface and the central axis of the base body (10) is between 37 degrees and 75 degrees.

4. The semi-finished injector body according to claim 1, wherein the free end face (111) of the boss (11) forms a machining reference plane of the semi-finished injector body, the free end face (111) being perpendicular to the central axis of the base body (10).

5. Injector body, characterized in that it is made from an injector body semi-finished product according to any one of claims 1 to 4, the machined surface (102) being removed along its surface by a thickness of 1-4mm to form a connection surface (105).

6. The oil injector body according to claim 5, wherein a connection hole (108) for connecting a high-pressure oil pipe is formed at the connection surface (105), and the connection hole (108) is disposed perpendicular to the connection surface (105).