CN205798823U - The spool suspension apparatus for welding and positioning of EGR valve - Google Patents
The spool suspension apparatus for welding and positioning of EGR valve Download PDFInfo
- Publication number
- CN205798823U CN205798823U CN201620820509.5U CN201620820509U CN205798823U CN 205798823 U CN205798823 U CN 205798823U CN 201620820509 U CN201620820509 U CN 201620820509U CN 205798823 U CN205798823 U CN 205798823U
- Authority
- CN
- China
- Prior art keywords
- valve body
- placement rack
- piston ring
- spool
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
This utility model relates to the spool suspension apparatus for welding and positioning of EGR valve, belong to EGR valve of engine valve and produce equipment, welding connecting hole is had in the middle of valve body placement rack, the lower end external diameter of valve body placement rack coordinates with the hole of valve body, there is cannelure valve body placement rack lower end, is provided with piston ring in groove, and piston ring has O RunddichtringO with the sidewall of groove, piston ring connects with air inlet, and there is return spring the lower end of piston ring；Movable expanding block is outside piston ring and between the hole inwall of valve body, and piston ring inflation driving activity expanding block moves to the inwall direction of valve body hole；Return spring is fixed on valve body placement rack by fixing nut, and spool is arranged between lower surface and the valve body of valve body placement rack, and the upper plane of spool is developed with the lower surface of valve body placement rack.This apparatus for welding and positioning compact conformation, low cost, simple to operate, location is reliable；Weld with center-pole for engine EGR valve core and be accurately positioned, it is ensured that welding quality and improve the positioner of production efficiency.
Description
Technical field
This utility model relates to the spool suspension apparatus for welding and positioning of EGR valve, belongs to EGR valve of engine and produces equipment.
Background technology
The spool of electric EGR valve is fixed together by laser welding with center-pole, and motor pushing center-pole opens spool,
Displacement transducer feedback signal ECU controls the size of the opening degree control air inflow of spool.
When electric EGR valve welds with center-pole, spool puts into the center-pole having been loaded into valve body, and spool and valve seat are set level also
Compress, welded with the fit clearance of center-pole along spool by laser-beam welding machine.During welding, spool needs with the center of circle of center-pole
With the center alignment of laser welding head, otherwise can cause weld excursion, affect welding quality.
As in figure 2 it is shown, be currently used spool and center-pole Welding Structure.19 valve bodies are put by plane and two pits location
Putting at 13 valve body mounting tables, 21 right cylinder compress, and are fixed on by 19 valve bodies on 13 valve body mounting tables.On 10, push cylinder passes through 11
Connecting rod promotes the cylinder on the right side of the 13 valve body mounting tables and 21 being fixed on 12 guide rails up to move to 16 on 24 sliding axles
The upper plane of spool contacts with the lower plane of 15 valve body height limit blocks.
This structure drawback is valve body and center rod aperture, and the cumulative error of two dowel holes (screw hole) and frock each
After parts machining and assembling, cumulative error is bigger.Cause welding machine quality unstable and tool structure be complicated, to frock and
The requirement on machining accuracy of valve body is high, relatively costly；Operational motion is too much, and efficiency is low.
Summary of the invention
For above-mentioned technical problem, this utility model provides the spool suspension apparatus for welding and positioning of a kind of EGR valve, it is provided that one
Plant simple to operate, be accurately positioned the mechanism of the position in the valve body center of circle.
Concrete technical scheme is:
Including valve body placement rack, welding connecting hole, the lower end of described valve body placement rack in the middle of valve body placement rack, is had to be arranged on
In the hole of valve body, the lower end external diameter of valve body placement rack coordinates with the hole of valve body, and there is cannelure valve body placement rack lower end, installs in groove
Piston ring, described piston ring is had to have O RunddichtringO, described piston ring to connect with air inlet with the sidewall of groove, piston ring
There is return spring lower end；Movable expanding block is outside piston ring and between the hole inwall of valve body, and piston ring inflates driving activity
Expanding block moves to the inwall direction of valve body hole；Return spring is fixed on valve body placement rack by fixing nut, and spool is installed
Between the lower surface and valve body of valve body placement rack, the upper plane of spool is developed with the lower surface of valve body placement rack.
Overcome the power of return spring by the piston ring coaxial with spool, promote the movable expanding block coaxial with spool and valve
Both are fixed by the hole contact of the valve body that core is coaxial by frictional force, it is ensured that the Kong Douyu piston ring of valve body, work during dress every time
Dynamic expanding block is all coaxial.Having welded rear return spring promotes piston ring up to move, and movable expanding block pressure releases takes
Lower valve body.
The spool suspension apparatus for welding and positioning of the EGR valve that this utility model provides, compact conformation, low cost, simple to operate,
Location is reliable；Weld with center-pole for engine EGR valve core and be accurately positioned, it is ensured that welding quality and improve production efficiency
Positioner.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is existing positioner.
In Fig. 1: 1, valve body placement rack, 2, piston ring, 3, O RunddichtringO, 4, movable expanding block, 5, return spring, 6, solid
Determine nut, 7, spool, 8, valve body, 9, center-pole；
In Fig. 2: 10, upper push cylinder, 11, connecting rod, 12, guide rail, 13, valve body mounting table, 14, valve body alignment pin, 15, valve
Height limited block, 16, spool, 17, center-pole, 18, damping rubber block, 19, valve body, 20, right cylinder pressure head, 21, right side
Cylinder, 22, right cylinder installing plate, 23, linear bearing, 24, sliding axle.
Detailed description of the invention
Accompanying drawings is of the present utility model to be embodied as.
As it is shown in figure 1, the spool suspension apparatus for welding and positioning of EGR valve, in the middle of valve body placement rack 1, valve body placement rack 1
Welding connecting hole, the lower end of described valve body placement rack 1 is had to be arranged in the hole of valve body 8, the lower end external diameter of valve body placement rack 1 and valve
The hole of body 8 coordinates, and there is cannelure valve body placement rack 1 lower end, is provided with piston ring 2, described piston ring 2 and the sidewall of groove in groove
Having O RunddichtringO 3, described piston ring 2 to connect with air inlet, there is return spring 5 lower end of piston ring 2；Movable expanding block 4
Outside piston ring 2 and between the hole inwall of valve body 8, piston ring 2 inflates the driving activity expanding block 4 inwall side to valve body 8 hole
To motion；Return spring 5 is fixed on valve body placement rack 1 by fixing nut 6, and spool 7 is arranged on the lower end of valve body placement rack 1
Between face and valve body 8, the upper plane of spool 7 is developed with the lower surface of valve body placement rack 1.
Valve body placement rack 1 is put in the hole of valve body 8 from the bottom up, the upper plane of spool 7 and the lower end of valve body placement rack 1
Face is set level, and starts air valve switch, and when inlet charge, piston ring 2 overcomes return spring power 5, movable expanding block 4 to have three pieces,
Valve body 8, to moving around and the contact internal walls in valve body 8 hole, is fixed on valve by frictional force by piston ring 2 promotion activity expanding block 4
On body placement rack 1.Spool 7 and center-pole 9 are welded by the welding connecting hole in the middle of valve body placement rack 1, after having welded,
Pressure releases, return spring 5 return withstands piston ring 2 and up moves, takes off valve body 8, the spool 7 welding completed and center-pole
9 take out.
Claims (1)
- The spool suspension apparatus for welding and positioning of 1.EGR valve, it is characterised in that: include valve body placement rack (1), valve body placement rack (1) There is welding connecting hole centre, and the lower end of described valve body placement rack (1) is arranged in the hole of valve body (8), under valve body placement rack (1) End external diameter coordinates with the hole of valve body (8), and there is cannelure valve body placement rack (1) lower end, is provided with piston ring (2) in groove, described Piston ring (2) has O RunddichtringO (3), described piston ring (2) to connect with air inlet with the sidewall of groove, the lower end of piston ring (2) There is return spring (5)；Movable expanding block (4) is positioned between piston ring (2) outside and the hole inwall of valve body (8), and piston ring (2) fills The dynamic movable expanding block (4) of gas drive is moved to the inwall direction in valve body (8) hole；Return spring (5) is fixed on by fixing nut (6) On valve body placement rack (1), spool (7) is arranged between the lower surface of valve body placement rack (1) and valve body (8), and the upper of spool (7) is put down The lower surface of face and valve body placement rack (1) is developed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820509.5U CN205798823U (en) | 2016-07-29 | 2016-07-29 | The spool suspension apparatus for welding and positioning of EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820509.5U CN205798823U (en) | 2016-07-29 | 2016-07-29 | The spool suspension apparatus for welding and positioning of EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205798823U true CN205798823U (en) | 2016-12-14 |
Family
ID=57507059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620820509.5U Withdrawn - After Issue CN205798823U (en) | 2016-07-29 | 2016-07-29 | The spool suspension apparatus for welding and positioning of EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205798823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002057A (en) * | 2016-07-29 | 2016-10-12 | 无锡隆盛科技股份有限公司 | Valve core suspension welding and positioning device for EGR valve |
-
2016
- 2016-07-29 CN CN201620820509.5U patent/CN205798823U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002057A (en) * | 2016-07-29 | 2016-10-12 | 无锡隆盛科技股份有限公司 | Valve core suspension welding and positioning device for EGR valve |
| CN106002057B (en) * | 2016-07-29 | 2018-05-01 | 无锡隆盛科技股份有限公司 | The spool suspension apparatus for welding and positioning of EGR valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180501 |