CN202974152U - Profile tolerance testing device for fuel injector seat - Google Patents
Profile tolerance testing device for fuel injector seat Download PDFInfo
- Publication number
- CN202974152U CN202974152U CN 201220685714 CN201220685714U CN202974152U CN 202974152 U CN202974152 U CN 202974152U CN 201220685714 CN201220685714 CN 201220685714 CN 201220685714 U CN201220685714 U CN 201220685714U CN 202974152 U CN202974152 U CN 202974152U
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- CN
- China
- Prior art keywords
- injector seat
- profile tolerance
- pick
- testing
- fuel injector
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a profile tolerance testing device for a fuel injector seat. The profile tolerance testing device is assembled by a testing bolt (1), a protrusion rod (2), a gear (3) and a handle (4). In a testing process, a testing device (5) and a stop block (6) are assembled on an assembly testing tool, then the testing bolt (1) is inserted into the fuel injector seat, and the handle (4) is rotated to drive the testing bolt (1). During the whole testing process, a protrusion contacts with the surface of the fuel injector seat; and when the protrusion arrives at the top point or the bottom point of the fuel injector seat, whether the gear (3) on the tail portion contact with the stop block (6) to block rotation of the testing device (5) or not is observed, so that whether a tested product meets the accuracy requirements of design or not can be judged.
Description
Technical field
The utility model relates to a kind of profile tolerance pick-up unit, belongs to the oil injector seat detection field.
Background technology
Fuel rail is main parts on motor car engine, is also the critical piece of the whole oil supply system of automobile.Before fuel rail is installed engine, first on the oil injector seat of fuel rail, fuel injector be installed, be arranged on engine more afterwards.Therefore for the position degree of oil injector seat on whole fuel rail, profile tolerance, circularity, verticality, the permissible accuracies such as roughness are higher, in case dimension overproof will cause that the phenomenons such as leakage of oil of oil supply system occur.In numerous index requests, profile tolerance is an of paramount importance index wherein, must effectively control and detect it in the process of fuel rail.
At present, the method that detects profile is to detect by detection plane, can not detect peak and the minimum point of oil injector seat, can't reach high-precision testing goal.Therefore, the utility model provides a kind of device that a projection is installed on original pick-up unit, and the afterbody of pick-up unit makes the shape of gear, and its principle is: by point-to-area contact, the plane of oil injector seat is detected; And detection means in the past is aspectant contact.
Summary of the invention
In order to solve the problem for the high-precision detection of profile tolerance index, the utility model improves on present apparatus structure, a kind of new oil injector seat profile tolerance pick-up unit is provided, in order to can be effectively the profile tolerance of oil injector seat on fuel rail be detected, operation is also convenient.
The new new equipment of this practicality is by test pin 1, with the bar (projection bar) 2 of projection, and gear 3, handle 4 forms; At first projection bar 2 and test pin 1 are assembled by the mode of interference fit, during assembling, guarantee right alignment 0.2 between the two, and be fixed with the screw of M6, form pick-up unit assembly A; Secondly, gear 3 is assembled with pick-up unit assembly A, can adopt interference fit or clearance fit, form pick-up unit assembly B; Again, handle 4 is fixed by the screw of M6 with pick-up unit assembly B, forms oil injector seat profile tolerance pick-up unit 5; At last oil injector seat profile tolerance pick-up unit 5 and limited block 6 are arranged on assembly checking tool, in order to oil injector seat is detected.
The size of test pin diameter is according to the external diameter decision of oil injector seat, and the thickness of tail gear determines according to the profile tolerance of oil injector seat, can add accordingly the system of keeping under strict control.
The utility model device by point-to-area contact, detects the plane of oil injector seat in the process that detects, and reach the high-precision testing requirement for the oil injector seat profile tolerance, thereby whether judge product qualified, the product quality of guarantee company.
Description of drawings
Accompanying drawing 1: test pin schematic diagram.
Accompanying drawing 2: projection bar schematic diagram.
Accompanying drawing 3: pick-up unit assembly A schematic diagram.
Accompanying drawing 4: gear schematic diagram.
Accompanying drawing 5: pick-up unit assembly B schematic diagram.
Accompanying drawing 6: handle schematic diagram.
Accompanying drawing 7: profile tolerance pick-up unit schematic diagram.
Accompanying drawing 8: limited block schematic diagram.
Accompanying drawing 9: schematic diagram when assembly checking tool detects.
Embodiment
The utility model structure is effectively the oil injector seat on fuel rail to be carried out the profile tolerance detection for better.
This structure is mounted on comprehensive check tool, after detection is qualified, just can detect product.As shown in Figure 9, the method of its detection is: test pin 1 is inserted in oil injector seat, and turning handle 4, test pin 1 rotate thereupon, in whole testing process, projection contacts with the surface of oil injector seat, when projection is encountered the peak of oil injector seat or minimum point, if tail gear 3 parts can be encountered limited block 6, can't rotation detecting device 5, this shows, the profile tolerance of detected fuel rail is overproof, does not meet the design accuracy requirement; If tail gear 3 parts are not encountered limited block 6, pick-up unit 5 rotates not interrupted, shows that detected fuel rail meets the fire accuracy requirement, is certified products.
Improvement by this detection architecture, can effectively detect the height point and ground low spot of oil injector seat, whether thereby it is qualified to judge product, the product quality of guarantee company, reduce the client for the complaint of this respect, a favorable impression is also arranged in the customers' place for company, is also the situation of a doulbe-sides' victory for both sides.
Claims (1)
1. oil injector seat profile tolerance pick-up unit, it is characterized in that: described profile tolerance pick-up unit (5) is comprised of test pin (1), projection bar (2), gear (3), handle (4); At first projection bar (2) and test pin (1) are assembled by the mode of interference fit, during assembling, guarantee right alignment 0.2 between the two, and be fixed with the screw of M6, form pick-up unit assembly A; Secondly, gear (3) is assembled with pick-up unit assembly A, can adopt interference fit or clearance fit, form pick-up unit assembly B; Again, handle (4) is fixed by the screw of M6 with pick-up unit assembly B, forms oil injector seat profile tolerance pick-up unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685714 CN202974152U (en) | 2012-12-13 | 2012-12-13 | Profile tolerance testing device for fuel injector seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685714 CN202974152U (en) | 2012-12-13 | 2012-12-13 | Profile tolerance testing device for fuel injector seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974152U true CN202974152U (en) | 2013-06-05 |
Family
ID=48515213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220685714 Expired - Lifetime CN202974152U (en) | 2012-12-13 | 2012-12-13 | Profile tolerance testing device for fuel injector seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646312A (en) * | 2015-03-02 | 2015-05-27 | 上海众源燃油分配器制造有限公司 | Equipment for automatically detecting oil sprayer seat of high-pressure fuel oil pipe |
-
2012
- 2012-12-13 CN CN 201220685714 patent/CN202974152U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646312A (en) * | 2015-03-02 | 2015-05-27 | 上海众源燃油分配器制造有限公司 | Equipment for automatically detecting oil sprayer seat of high-pressure fuel oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180312 Address after: 545616 the Guangxi Zhuang Autonomous Region Liuzhou Liu Dong New Area Bay Road No. 2 standard workshop area B 12 East two cross Patentee after: Liuzhou Liannan Beijing Great Automotive Components Co.,Ltd. Address before: 201204 Xin Chen Road, Pudong New Area, Pudong New Area, Shanghai Patentee before: SHANGHAI LIANNAN AUTO ACCESSORIES CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |