CN211759665U

CN211759665U - Production device of electronic injection fuel pump

Info

Publication number: CN211759665U
Application number: CN201922217429.7U
Authority: CN
Inventors: 石惠琼; 苏其灿; 孟祥涛; 邵强
Original assignee: Shanghai Kunfu Enterprise (Group) Co Ltd; SHANGHAI KUNFU VEHICLE FITTINGS CO Ltd
Current assignee: Shanghai Kunfu Enterprise (Group) Co Ltd; SHANGHAI KUNFU VEHICLE FITTINGS CO Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-27
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a production device of an electronic injection fuel pump, which comprises a workbench, wherein a first seat plate and a second seat plate are arranged on the workbench, and a push rod channel is formed between the first seat plate and the second seat plate; the die further comprises a lower die base, wherein a fixed positioning cavity is arranged on the upper end face of the lower die base, and a movable positioning hole is arranged on the lower end face of the lower die base; a driving frame is also fixed on the lower die base, and a driving hole is formed in the driving frame; the workbench is provided with a driving device, the driving device comprises a push rod, the push rod extends into the driving hole and can slide relative to the driving hole, and the lower end of the push rod extends into a push rod channel; the workbench is also provided with a positioning device for positioning the lower die holder, the positioning device comprises a positioning rod and a driving block, and two side surfaces of the push rod channel are provided with guide grooves; the upper end of the positioning rod is provided with a guide surface, and the driving block is fixed at the lower end of the positioning rod; the workbench is provided with a plurality of seat holes, the driving block is matched with the seat holes, and the workbench is fixed with a control cylinder. Simple structure just can accurately accomplish the location of die holder, and the pressure equipment is efficient.

Description

Production device of electronic injection fuel pump

Technical Field

The utility model relates to a fuel pump production facility especially relates to an electricity spouts apparatus for producing of fuel pump.

Background

The electronic fuel injection pump is used for conveying fuel stored in a fuel tank to a fuel pipeline of a fuel injector and supplying the fuel with a certain pressure to the fuel injector. The fuel pump assembly process needs to be applied to press-fitting equipment, and the stator assembly, the pump assembly and the end cover are arranged on the pump shell in an isobaric mode. The existing press-fitting equipment has low automation degree, complex structure and unsatisfactory positioning effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electricity that rational in infrastructure and positioning accuracy are high spouts production facility of fuel pump is provided.

In order to solve the technical problem, the technical scheme of the utility model is that: a production device of an electronic injection fuel pump comprises a workbench, wherein a plurality of stand columns are arranged on the workbench, head pressing supports are fixed at the upper ends of the stand columns, a plurality of driving cylinders are fixed on the head pressing supports, and pressure heads are fixed on telescopic rods of the driving cylinders; a first seat plate and a second seat plate are arranged on the workbench, and a push rod channel is formed between the first seat plate and the second seat plate; the lower die base is arranged on the upper side surfaces of the first base plate and the second base plate in a sliding mode; a fixed positioning cavity for accommodating the pump shell is arranged on the upper end surface of the lower die base, a movable positioning hole is arranged on the lower end surface of the lower die base, and the movable positioning hole corresponds to the push rod channel; a driving frame is further fixed on the lower die base, and a long-strip-shaped driving hole is formed in the driving frame; the workbench is provided with a driving device for pushing the lower die holder to move along the push rod channel, the driving device comprises a push rod, the upper end of the push rod extends into the driving hole and can slide relative to the driving hole, the lower end of the push rod extends into the push rod channel, and the workbench is also fixedly provided with a driving device for driving the push rod; the workbench is also provided with a positioning device for positioning the lower die holder, the positioning device comprises a positioning rod and a driving block, and the cross section of the positioning rod is circular; the outer diameter of the positioning rod is matched with the inner diameter of the movable positioning hole and is larger than the width of the push rod channel, and arc-shaped guide grooves for positioning and guiding the positioning rod are arranged on two side surfaces of the push rod channel; the upper end of the positioning rod is provided with a guide surface, and the driving block is fixed at the lower end of the positioning rod; the workbench is provided with a plurality of seat holes, the driving block is matched with the seat holes and is arranged in the seat holes in a vertically sliding manner; and a control cylinder for controlling the driving block to move upwards or downwards is fixed on the lower side surface of the workbench.

Preferably, the guide surface is a spherical surface.

As a preferred technical scheme, the driving device is an air cylinder, and an expansion rod of the air cylinder is fixedly connected with the push rod.

As a preferred technical solution, the fixed positioning cavity is communicated with the movable positioning hole.

As an optimal technical scheme, three pressure heads are arranged on the pressure head support, three positioning rods are arranged on the workbench, and the positioning rods correspond to the pressure heads one to one.

By adopting the technical scheme, the production device of the electric injection fuel pump is simple in structure, can accurately complete the positioning of the lower die holder, and is high in press fitting efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a lower die holder in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a middle positioning rod according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the workbench according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1, the production device of the electronic injection fuel pump comprises a workbench 1, wherein a plurality of upright posts 4 are arranged on the workbench 1, a pressure head support 7 is fixed at the upper end of each upright post 4, a plurality of driving cylinders 8 are fixed on the pressure head support 7, and a pressure head 9 is fixed on a telescopic rod of each driving cylinder 8; as shown in fig. 4, the table 1 is provided with a first seat plate 5 and a second seat plate 6, and a push rod passage 18 is formed between the first seat plate 5 and the second seat plate 6. The first seat plate 5 and the second seat plate 6 are fixed on the table-board of the workbench 1 through connecting pieces such as bolts.

The lower die holder 11 is arranged on the upper side surfaces of the first seat plate 5 and the second seat plate 6 in a sliding manner; as shown in fig. 2, a fixed positioning cavity 13 for accommodating the pump shell is arranged on the upper end surface of the lower die base 11, a movable positioning hole 14 is arranged on the lower end surface of the lower die base 11, the movable positioning hole 14 and the fixed positioning cavity 13 can be communicated or not communicated, and optimally, the movable positioning hole 14 is communicated with the fixed positioning cavity 13, so that the fixed positioning cavity 13 is easy to clean when sundries fall into the fixed positioning cavity 13, and the pump body cannot be damaged. The position of the movable positioning hole 14 corresponds to the position of the push rod channel 18; a driving frame 16 is also fixed on the lower die holder 11, and a strip-shaped driving hole 15 is formed in the driving frame 16; the driving frame 16 and the lower die holder 11 are integrally machined or welded.

The workbench 1 is provided with a driving device for pushing the lower die holder 11 to move along the push rod channel 18, the driving device comprises a push rod 12, the upper end of the push rod 12 extends into the driving hole 15 and can slide relative to the driving hole 15, the lower end of the push rod 12 extends into the push rod channel 18, and a driving device for driving the push rod 12 is further fixed on the workbench 1; the driving device is a cylinder, and a telescopic rod of the cylinder is fixedly connected with the push rod 12.

The workbench 1 is also provided with a positioning device for positioning the lower die holder 11, as shown in fig. 3, the positioning device comprises a positioning rod 10 and a driving block 17, and the cross section of the positioning rod 10 is circular; the outer diameter of the positioning rod 10 is matched with the inner diameter of the movable positioning hole 14 and is larger than the width of the push rod channel 18, and arc-shaped guide grooves 19 for positioning and guiding the positioning rod 10 are arranged on two side surfaces of the push rod channel 18; the upper end of the positioning rod 10 is provided with a guide surface 20; the guide surface 20 is a spherical surface, and the drive block 17 is fixed to the lower end of the positioning rod 10. The workbench 1 is provided with a plurality of seat holes 3, the driving block 17 is matched with the seat holes 3, and the driving block 17 is arranged in the seat holes 3 in a vertically sliding manner; a control device 2 for controlling the driving block 17 to move up or down is fixed on the lower side surface of the working table 1, and the control device 2 comprises a control cylinder.

Preferably, the pressure head support 7 is provided with three pressure heads 9, the workbench 1 is provided with three positioning rods 10, and the positioning rods 10 correspond to the pressure heads 9 one by one. The three press heads 9 can be arranged in the structure according to the requirement of the press fitting 2 so as to improve the assembly efficiency.

An operator controls the movement of the push rod 12, the control of the push rod 12 can be realized by controlling the air cylinder, and the direct manual operation can also be realized; the push rod 12 drives the lower die holder 11 to move together, when the moving positioning hole 14 of the lower die holder 11 corresponds to the positioning rod 10 locally, the positioning rod 10 is controlled to ascend, the driving hole 15 and the push rod have a relative movement space, the push rod 12 does not need to be adjusted continuously, under the action of the guide surface 20 of the positioning rod 10, the positioning rod 10 extends into the moving positioning hole 14 and completes positioning of the lower die holder 11, after press fitting is completed, the positioning rod 10 is controlled to descend to be separated from the lower die holder 11, and the push rod is pushed to move the lower die holder 11 to a next station. In the process, the lower die holder 11 is positioned by the positioning rod 10, and the coaxiality of the positioning rod 10 and the pressure head is easy to ensure, so that the machining precision is stable and reliable.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A production device of an electronic injection fuel pump comprises a workbench, wherein a plurality of stand columns are arranged on the workbench, head pressing supports are fixed at the upper ends of the stand columns, a plurality of driving cylinders are fixed on the head pressing supports, and pressure heads are fixed on telescopic rods of the driving cylinders; the method is characterized in that: a first seat plate and a second seat plate are arranged on the workbench, and a push rod channel is formed between the first seat plate and the second seat plate; the lower die base is arranged on the upper side surfaces of the first base plate and the second base plate in a sliding mode; a fixed positioning cavity for accommodating the pump shell is arranged on the upper end surface of the lower die base, a movable positioning hole is arranged on the lower end surface of the lower die base, and the movable positioning hole corresponds to the push rod channel; a driving frame is further fixed on the lower die base, and a long-strip-shaped driving hole is formed in the driving frame; the workbench is provided with a driving device for pushing the lower die holder to move along the push rod channel, the driving device comprises a push rod, the upper end of the push rod extends into the driving hole and can slide relative to the driving hole, the lower end of the push rod extends into the push rod channel, and the workbench is also fixedly provided with a driving device for driving the push rod; the workbench is also provided with a positioning device for positioning the lower die holder, the positioning device comprises a positioning rod and a driving block, and the cross section of the positioning rod is circular; the outer diameter of the positioning rod is matched with the inner diameter of the movable positioning hole and is larger than the width of the push rod channel, and arc-shaped guide grooves for positioning and guiding the positioning rod are arranged on two side surfaces of the push rod channel; the upper end of the positioning rod is provided with a guide surface, and the driving block is fixed at the lower end of the positioning rod; the workbench is provided with a plurality of seat holes, the driving block is matched with the seat holes and is arranged in the seat holes in a vertically sliding manner; and a control cylinder for controlling the driving block to move upwards or downwards is fixed on the lower side surface of the workbench.

2. An apparatus for producing an electronic fuel injection pump according to claim 1, wherein: the guide surface is spherical.

3. An apparatus for producing an electronic fuel injection pump according to claim 1, wherein: the driving device is an air cylinder, and a telescopic rod of the air cylinder is fixedly connected with the push rod.

4. An apparatus for producing an electronic fuel injection pump according to claim 1, wherein: the fixed positioning cavity is communicated with the movable positioning hole.

5. An apparatus for producing an electronic fuel injection pump according to any one of claims 1 to 4, wherein: the pressure head support is provided with three pressure heads, the workbench is provided with three positioning rods, and the positioning rods correspond to the pressure heads one to one.