CN215469374U

CN215469374U - Assembling mechanism

Info

Publication number: CN215469374U
Application number: CN202121302201.9U
Authority: CN
Inventors: 李伟; 钱懿; 周旸; 钱智; 顾嘉豪
Original assignee: Changshu Entech Plastic Auto Parts Co ltd
Current assignee: Changshu Entech Plastic Auto Parts Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-01-11
Anticipated expiration: 2031-06-10

Abstract

The present invention provides an assembly mechanism for assembling a cover plate of a PRV valve to a cylinder head cover, the assembly mechanism including: the cylinder cover comprises a bottom plate for placing a cylinder cover cap, a pressing block which is arranged above the bottom plate in a vertically movable mode, and a cylinder for driving the pressing block to move vertically, wherein the plane where the bottom plate is located is parallel to the horizontal plane, the pressing block is used for enabling a cover plate to be buckled with the cylinder cover cap, an upward concave groove is formed in the lower bottom surface of the pressing block, the inner wall of the groove is matched with the outer contour of the cover plate, and an adsorption assembly is arranged in the groove, so that the cover plate can be placed in the groove for positioning, and can be adsorbed in the groove for keeping through the adsorption assembly, and the cover plate is not easy to misplace and is easy to buckle; when pushing down, because the outer profile phase-match of recess inner wall and apron, can evenly transmit down force to the outer profile of apron on for the apron atress is even, and is not fragile.

Description

Assembling mechanism

Technical Field

The utility model relates to the field of assembling equipment, in particular to an assembling mechanism for assembling a cover plate of a PRV (positive displacement valve) to a cylinder cover.

Background

The cylinder cover is a cover covering on an engine cylinder body, can prevent external impurities from entering an engine, and in order to balance the pressure in a crankcase of the engine, most of the existing cylinder covers are also provided with PRV valves for adjusting the pressure in the crankcase, for example, Chinese patent CN207830005U discloses an integrated cylinder cover with PRV valves, which comprises a cover plate, a diaphragm and a spring for jacking up the diaphragm, when in assembly, the spring needs to be compressed firstly, then the diaphragm and the cover plate are placed, and finally the cover plate is pressed downwards forcibly, so that the cover plate is buckled with the cylinder cover, and the assembly in the mode at least has the following problems:

1. the cover plate is difficult to fix, and the phenomenon that the cover plate and the cylinder cover are staggered due to position deviation and difficult to buckle easily occurs;

2. because the outer contour of the cover plate is irregular, when pressure is applied, the whole outer contour is difficult to be uniformly stressed, and the cover plate is easy to deform or even break at the point where the stress is concentrated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides an assembling mechanism for assembling a cover plate of a PRV valve on a cylinder cover.

In order to achieve the above object, the present invention adopts a technical solution in which an assembling mechanism for assembling a cover plate of a PRV valve to a cylinder head cover includes:

the plane where the bottom plate is located is parallel to the horizontal plane, and the bottom plate is used for placing the cylinder cover;

the pressing block is arranged above the bottom plate in a vertically movable mode and used for enabling the cover plate to be buckled with the cylinder cover;

the air cylinder is used for driving the pressing block to move up and down;

the lower bottom surface of briquetting is seted up the recess of upwards sinking, the inner wall of recess with the outline phase-match of apron, be equipped with adsorption component in the recess, adsorption component is used for making the apron adsorbs in the recess.

Preferably, adsorption component includes the air flue, the middle part setting of air flue is in the briquetting, an end of air flue extends right and runs through the right surface of briquetting and forms the first opening of air flue, another tip downwardly extending of air flue runs through the inner wall of recess and forms the second opening, be connected with the vacuum pipe on the first opening.

Further preferably, the second opening is located at the highest point of the inner wall of the groove.

Preferably, a guide assembly is further arranged between the pressing block and the cylinder, the guide assembly comprises a guide plate and a guide post, the plane where the guide plate is located is parallel to the horizontal plane, the guide plate is connected with a cylinder rod of the cylinder, the upper end of the guide post is arranged on the guide plate in a penetrating mode in a vertically movable mode, and the lower end of the guide post is connected with the upper surface of the pressing block.

Further preferably, the guide assembly further comprises a spring, the spring is sleeved on the guide post, and two end portions of the spring are respectively abutted against the guide plate and the pressing block.

Further preferably, the assembling mechanism further comprises a pressure sensor, the pressure sensor is detachably arranged on the lower surface of the guide plate and extends downwards, and a gap is formed between the bottom of the pressure sensor and the upper surface of the pressing block.

Further preferably, an upward-bulging boss is arranged on the upper surface of the pressing block, and the boss is located right below the pressure sensor.

Further preferably, the number of the guide posts is at least three, and the guide posts are distributed in a circular array around the pressure sensor.

Further preferably, the pressure sensor is cylindrical, and an axial line of the pressure sensor coincides with an axial line of the cylinder rod.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the lower bottom surface of the pressing block is provided with the groove which is sunken upwards, so that the inner wall of the groove is matched with the outer contour of the cover plate, and the adsorption component is arranged in the groove, so that the cover plate can be placed in the groove for positioning, and can be adsorbed in the groove for keeping through the adsorption component, and the cover plate is not easy to misplace and is easy to buckle; when pushing down, because the outer profile phase-match of recess inner wall and apron, can evenly transmit down force to the outer profile of apron on for the apron atress is even, and is not fragile.

Drawings

Fig. 1 is a schematic top view of a preferred embodiment of the present invention.

Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.

Wherein: 10. a base plate; 30. briquetting; 31. a groove; 32. an airway; 321. a first opening; 322. a second opening; 33. a boss; 40. a cylinder; 41. a cylinder rod; 50. a guide assembly; 51. a guide plate; 52. a guide post; 53. a spring; 60. a pressure sensor; 61. a gap; 70. a cylinder head cover; 71. and (7) a cover plate.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

The up-down direction described in the present invention is the up-down direction in fig. 2, and the left-right direction described in the present invention is the left-right direction in fig. 2.

As shown in fig. 1-2, the present invention provides an assembling mechanism for assembling a cover plate of a PRV valve to a cylinder head cover, the assembling mechanism including: the device comprises a bottom plate 10, a pressing block 30, a cylinder 40 and a guide assembly 50, wherein the plane of the bottom plate 10 is parallel to the horizontal plane, the upper surface of the bottom plate 10 is used for placing a cylinder cover cap 70, the pressing block 30 is arranged above the bottom plate 10 in a vertically movable mode, the pressing block 30 is used for enabling a cover plate 71 of a PRV valve to be buckled with the cylinder cover cap 70, the cylinder 40 is used for driving the pressing block 30 to vertically move, a cylinder rod 41 of the cylinder 40 is connected with the pressing block 30 through the guide assembly 50, and the pressing block 30 is driven to vertically move through upward retraction or downward extension of the cylinder rod 41.

In this embodiment, briquetting 30's lower bottom surface is seted up the recess 31 of upwards sunken, and the inner wall of recess 31 and the outline phase-match of apron 71 are equipped with adsorption component in the recess 31, and adsorption component is used for making apron 71 adsorbed in recess 31, and the benefit that sets up like this lies in: the cover plate 71 can be placed in the groove 31 for positioning, and the cover plate 71 can be adsorbed in the groove 31 through the adsorption assembly for keeping, so that the cover plate 71 is not easy to misplace, and when the pressing block 30 moves downwards to the cylinder cover 70, the cover plate 71 is easy to be buckled with the cylinder cover 70.

In this embodiment, the adsorbing component is an air duct 31, specifically, the cross-sectional shape of the air duct 31 is an inverted L shape, the middle portion of the air duct 31 is disposed in the pressing block 30, one end portion of the air duct 31 extends rightward to penetrate through the right surface of the pressing block 30 and form a first opening 311 of the air duct 31, the other end portion of the air duct 31 extends downward to penetrate through the inner wall of the groove 31 and form a second opening 312, a vacuum pipeline (not shown in the figure) is connected to the first opening 311, and the second opening 312 is located at the highest point of the inner wall of the groove 31.

The guide assembly 50 is disposed between the pressing block 30 and the cylinder 40, specifically, the guide assembly 50 includes a guide plate 51, a guide post 52 and a spring 53, the plane of the guide plate 51 is parallel to the horizontal plane, the upper surface of the guide plate 51 is connected with the end of the cylinder rod 41 of the cylinder 40, the upper end of the guide post 52 is vertically movably inserted into the guide plate 51, the lower end of the guide post 52 is connected with the upper surface of the pressing block 30, the spring 53 is sleeved on the guide post 52, the two ends of the spring 53 respectively abut against the guide plate 51 and the pressing block 30, the spring 53 has a tendency to drive the pressing block 30 to move downward, and of course, in order to prevent the guide post 52 from separating from the guide plate 51, a limiting member (not shown in the figure) is disposed on the guide post 51.

In order to apply the downward pressure more accurately, prevent the cover plate 71 from being damaged due to the excessive downward pressure of the pressing block 30, the assembling mechanism is further provided with a pressure sensor 60, the pressure sensor 60 is used for detecting the magnitude of the downward pressure applied to the cover plate 71, specifically, the pressure sensor 60 is cylindrical, the axis of the pressure sensor 60 coincides with the axis of the cylinder rod 41, the pressure sensor 60 is detachably arranged on the lower surface of the guide plate 51 and extends downwards, a gap 61 is arranged between the bottom of the pressure sensor 60 and the upper surface of the pressing block 30, in order to ensure that the pressure sensor 60 has a flat and horizontal pressure receiving surface, improve the accuracy of pressure detection, in this embodiment, the upper surface of the pressing block 30 is provided with the boss 33 which is upwardly protruded, the boss 33 is located right below the pressure sensor 60, four guide posts 52, the four guide posts 52 are distributed in an annular array centered on the axis of the pressure sensor 60.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of the present invention.

Claims

1. An assembly mechanism for assembling a cover plate of a PRV valve to a cylinder head cover, the assembly mechanism comprising:

the air cylinder is used for driving the pressing block to move up and down;

the method is characterized in that:

2. The assembly mechanism of claim 1, wherein: adsorption component includes the air flue, the middle part setting of air flue is in the briquetting, an end of air flue extends right and runs through the right surface of briquetting and formation the first opening of air flue, another tip downwardly extending of air flue runs through the inner wall of recess forms the second opening, be connected with the vacuum pipeline on the first opening.

3. The assembly mechanism of claim 2, wherein: the second opening is located at the highest point of the inner wall of the groove.

4. The assembly mechanism of claim 1, wherein: the guide assembly is arranged between the pressing block and the air cylinder and comprises a guide plate and a guide post, the plane where the guide plate is located is parallel to the horizontal plane, the guide plate is connected with the air cylinder rod of the air cylinder, the upper end of the guide post penetrates through the guide plate in a vertically movable mode, and the lower end of the guide post is connected with the upper surface of the pressing block.

5. The assembly mechanism of claim 4, wherein: the guide assembly further comprises a spring, the spring is sleeved on the guide post, and two end parts of the spring are respectively abutted against the guide plate and the pressing block.

6. The assembly mechanism of claim 4, wherein: the assembling mechanism further comprises a pressure sensor, the pressure sensor is detachably arranged on the lower surface of the guide plate and extends downwards, and a gap is formed between the bottom of the pressure sensor and the upper surface of the pressing block.

7. The assembly mechanism of claim 6, wherein: the upper surface of the pressing block is provided with a boss protruding upwards, and the boss is located under the pressure sensor.

8. The assembly mechanism of claim 6, wherein: the number of the guide columns is at least three, and the guide columns are distributed in an annular array by taking the pressure sensor as the center.

9. The assembly mechanism of claim 6, wherein: the pressure sensor is cylindrical, and the axis of the pressure sensor coincides with the axis of the cylinder rod.