CN203414487U - Following-up testing needle precision positioning mechanism - Google Patents
Following-up testing needle precision positioning mechanism Download PDFInfo
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- CN203414487U CN203414487U CN201320491877.6U CN201320491877U CN203414487U CN 203414487 U CN203414487 U CN 203414487U CN 201320491877 U CN201320491877 U CN 201320491877U CN 203414487 U CN203414487 U CN 203414487U
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- testing needle
- needle
- testing
- module
- positioning plate
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Abstract
The utility model discloses a following-up testing needle precision positioning mechanism. The following-up testing needle precision positioning mechanism is associated with a testing module; the testing module is arranged in a floating manner on a corresponding test machine main base of a product with fine holes, and the testing module is provided with a module base and a testing needle which penetrates through the module base; the module base, along the expansion direction of the testing needle, is provided with a positioning needle; the product is provided with a positioning hole matching the positioning needle; and the testing needle matches the position of the fine holes of the product. In particular, the precision positioning mechanism is a guiding positioning plate which is arranged on the front of the testing needle; the guiding positioning plate is fixedly connected on the positioning needle and follows the positioning needle; the guiding positioning plate is provided with the fine array hole matching the position accuracy of the testing needle; and the diameter difference between the diameter of the fine array hole and the diameter of the testing needle is less than 0.1mm. With application of the utility model, the testing needle precision positioning mechanism can greatly improve the testing precision of the testing module, and reduce the discarded products due to the failed test; and at the same time, the guiding positioning plate adds to reduce the processing difficulty and the material cost of the module base.
Description
Technical field
The utility model relates to a kind of test macro, relates in particular to a kind ofly for the product with fine and closely woven hole, to carry out the pinpoint module parts of testing needle in contact test used test board.
Background technology
As shown in Figure 1, be the structural representation of existing a kind of target detection product.These product 5 surfaces have layer of metal plate 51, at sheet metal 51 downsides, are the targets of test, and contact or homogeneous structure, be below referred to as test point.On this sheet metal, offer the metal film perforation 53 of pilot hole 52 and corresponding contact.Illustrate as seen, test point is quite intensive, and during test jobs, testing needle need to be through just touching test point from metal film perforation 53.
Have and continued to use for a long time for the tester table of this series products, core cell test module is floated and is arranged on another larger pedestal by screw, the structure of this test module 1 as shown in Figure 2, it has module pedestal 11 and cross-under testing needle 4 wherein, the fine and closely woven hole of testing needle 4 and product (being corresponding metal film perforation 53) location matches.This module pedestal 11 is provided with pilot pin along the flexible direction of testing needle, on position, matches with pilot hole.
In test process, module presses down, and pilot pin first touches the pilot hole of test products, because the relatively large pedestal of whole test module floats, therefore pilot pin can affect module pedestal, thereby the position that drives testing needle to adjust testing needle reaches the object of accurate engaged test point.
Yet in actual production process, the bad condition of a lot of test crashs has appearred in this test module, thereby analyze after deliberation, find it is all that metal short circuit because testing needle touches limit, hole when the metal film perforation through above test point causes.Concrete quantification, the aperture on sheet metal is 1.1mm, and the diameter of testing needle is 0.4mm, and monolateral gap is only 0.35mm, testing needle is easy to touch sheet metal).Cause the basic reason of testing needle contacting metal plate have following some: the position deviation of (1) testing needle position relative positioning pin; (2) hole that on module pedestal, testing needle passes is very carefully very dark, and verticality be difficult to guarantee that (if but hole is done shallowly, to the locating effect of testing needle, can have a greatly reduced quality again) cause testing needle crooked; (3) testing needle causing in welding testing needle process is crooked; (4) testing needle and the gap of test between needle guard cause testing needle in the course of the work (especially when testing needle is oppressed) be offset.
Because the current precision of testing needle depends on following assembly relation: tested element-pilot pin-module pedestal-test needle guard-testing needle.Under the prerequisite of not changing this body structure of module, can only rely on and improve the machining precision of module pedestal and control the fraction defective that welding technology reduces module, and that the realization of these two measures has is very difficult, cost is also relatively considerable.Even if machining precision has improved, owing to having the reasons such as gap, testing needle itself rock between testing needle and test needle guard, also can cause pin position to be offset, therefore in the axial consistance that keeps testing needle in flexible direction, avoiding coming in contact with sheet metal, is current key technical problem in the urgent need to address.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the purpose of this utility model is to propose a kind of servo-actuated testing needle precision positioning mechanism, is applied to tester table and solves the problem of carrying out high precision measurement for the product with fine and closely woven hole.
Above-mentioned purpose of the present utility model, the technical solution of its realization is: a kind of servo-actuated testing needle precision positioning mechanism, be associated with test module, described test module float be arranged on correspondence with on the tester table main basal base of the product in fine and closely woven hole and test module there is module pedestal and cross-under testing needle wherein, described module pedestal is provided with pilot pin along the flexible direction of testing needle, described product has the pilot hole matching with pilot pin, described testing needle mates with the fine and closely woven hole site of product, it is characterized in that: described precision positioning mechanism is the guide positioning plate of being located at testing needle front end, described guide positioning plate is fixed in pilot pin servo-actuated with pilot pin, and described guide positioning plate is provided with the hole array mating with testing needle positional precision, the poor 0.1mm that is less than of the diameter of each aperture and the diameter of testing needle.
Further, described pilot pin is elastic shrinkage pin, and described guide positioning plate is connected with elastic shrinkage pin one and is servo-actuated, and elastic shrinkage needle end part is the cone that maximum outside diameter is greater than product orientation hole.
Further, the general thickness of described guide positioning plate is less than 2.5mm, and the thickness of guide positioning plate in the set position of hole array is less than 1.5mm.
Further, described module pedestal is connected with auxiliary positioning pin, and described guide positioning plate is provided with for auxiliary positioning pin and penetrates the auxiliary positioning hole passing.
Further, described module base stand location is provided with test needle guard, and the cross-under in test needle guard of described testing needle is flexible.
Apply testing needle precision positioning mechanism of the present utility model, the remarkable advantage that compares to conventional art is: it can significantly improve test module measuring accuracy, reduces the product rejection that test crash causes; Difficulty of processing and the Material Cost of module pedestal by setting up guide positioning plate, have been reduced simultaneously.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of product to be tested.
Fig. 2 is the refitting perspective view of existing test module.
Fig. 3 is the general assembly perspective view of the test module of the utility model band precision positioning mechanism.
Fig. 4 is the monomer structure vertical view of the utility model testing needle precision positioning mechanism.
Embodiment
The utility model testing needle precision positioning mechanism is still associated with the test module of traditional test board, is the breakthrough improvement of doing for it.After deliberation, contraposition and location that conventional art only depends on pilot pin to realize test module and product to be measured cannot meet accuracy requirement, and need to equally effectively locate testing needle, lead, therefore the parts of test module are studied and improved to the utility model to this, make it effectively to solve the problem of carrying out high precision measurement for the product with fine and closely woven hole.
As shown in Figure 3 and Figure 4, be the general assembly perspective view of test module and the monomer structure vertical view of testing needle precision positioning mechanism of the utility model band precision positioning mechanism.From illustrating, this precision positioning mechanism is the guide positioning plate 6 of being located at testing needle front end, this guide positioning plate 6 is connected in pilot pin servo-actuated with pilot pin, and guide positioning plate 6 is provided with the hole array 63 mating with testing needle positional precision, the poor 0.1mm that is less than of the diameter of each aperture and the diameter of testing needle.
In preferred embodiment of the present utility model, this module pedestal 11 is provided with main and auxiliary two groups of pilot pins, main pilot pin 2 comprises two elastic telescopic pins side by side, this elastic shrinkage needle end part is the cone that maximum outside diameter is greater than pilot hole, and end connects and fixes among the perforation 61 of guide positioning plate 6, pilot hole is the product orientation hole 52 of corresponding main pilot pin 2 herein.This main pilot pin 2 is provided with spring 21, and one end is fixed in elastic telescopic needle end part, and the other end is fixed in module pedestal 11, realizes thus the draw of 2 pairs of module pedestals 11 of this main pilot pin.As a supplement, this module pedestal 11 is connected with auxiliary positioning pin 3, and guide positioning plate 6 is provided with for auxiliary positioning pin and penetrates the auxiliary positioning hole 62 passing.
As the further refinement of above preferred embodiment and perfect, the general thickness of this guide positioning plate is controlled and is less than 2.5mm, and the thickness of guide positioning plate in the set position of hole array is less than 1.5mm.On such part, process the hole array 63 of testing needle guiding use, overall precision can be guaranteed and process also and be easy to, these apertures are owing to being top guide at testing needle in addition, can make up to a great extent the pin that the gap between module pedestal machining precision and testing needle and test needle guard causes biased poor.
Preferred embodiment shown in Fig. 3 is in test process, the pilot hole 52 that main pilot pin 2 touches test products is just subject to that reacting force moves upward, spring 21 compressions are floated regulates module pedestal 11, drive guide positioning plate 6 motions simultaneously, thereby avoided guide positioning plate to interfere target detection product.In motion process, testing needle 4 is able to pass respectively from hole array 2, guide positioning plate is corrected positional precision and the crooked buckling phenomenon of testing needle, has guaranteed that testing needle can accurately touch test point through metal film perforation, thereby high precision, efficiently completes product test.
By above-mentioned character express, can find out, apply testing needle precision positioning mechanism of the present utility model, the remarkable advantage that compares to conventional art is: it can significantly improve test module measuring accuracy, reduces the product rejection that test crash causes; Difficulty of processing and the Material Cost of module pedestal by setting up guide positioning plate, have been reduced simultaneously.
In addition to the implementation, the utility model can also have other embodiment, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (5)
1. a servo-actuated testing needle precision positioning mechanism, be associated with test module, described test module float be arranged on correspondence with on the tester table main basal base of the product in fine and closely woven hole and test module there is module pedestal and cross-under testing needle wherein, described module pedestal is provided with pilot pin along the flexible direction of testing needle, described product has the pilot hole matching with pilot pin, described testing needle mates with the fine and closely woven hole site of product, it is characterized in that: described precision positioning mechanism is the guide positioning plate of being located at testing needle front end, described guide positioning plate is fixed in pilot pin servo-actuated with pilot pin, and described guide positioning plate is provided with the hole array mating with testing needle positional precision, the poor 0.1mm that is less than of the diameter of each aperture and the diameter of testing needle.
2. servo-actuated testing needle precision positioning mechanism according to claim 1, it is characterized in that: described pilot pin is elastic shrinkage pin, described guide positioning plate is connected with elastic shrinkage pin one and is servo-actuated, and elastic shrinkage needle end part is the cone that maximum outside diameter is greater than product orientation hole.
3. according to testing needle precision positioning mechanism servo-actuated described in claim 1 or 2, it is characterized in that: the general thickness of described guide positioning plate is less than 2.5mm, and the thickness of guide positioning plate in the set position of hole array is less than 1.5mm.
4. servo-actuated testing needle precision positioning mechanism according to claim 1, is characterized in that: described module pedestal is connected with auxiliary positioning pin, and described guide positioning plate is provided with for auxiliary positioning pin and penetrates the auxiliary positioning hole passing.
5. servo-actuated testing needle precision positioning mechanism according to claim 1, is characterized in that: described module base stand location is provided with test needle guard, and the cross-under in test needle guard of described testing needle is flexible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491877.6U CN203414487U (en) | 2013-08-13 | 2013-08-13 | Following-up testing needle precision positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491877.6U CN203414487U (en) | 2013-08-13 | 2013-08-13 | Following-up testing needle precision positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414487U true CN203414487U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320491877.6U Expired - Fee Related CN203414487U (en) | 2013-08-13 | 2013-08-13 | Following-up testing needle precision positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008208A (en) * | 2016-10-31 | 2018-05-08 | 中车大同电力机车有限公司 | A kind of electric locomotive connector production quality detecting system |
| CN109655684A (en) * | 2018-12-14 | 2019-04-19 | 中山市拓电电子科技有限公司 | A kind of electric test component |
-
2013
- 2013-08-13 CN CN201320491877.6U patent/CN203414487U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008208A (en) * | 2016-10-31 | 2018-05-08 | 中车大同电力机车有限公司 | A kind of electric locomotive connector production quality detecting system |
| CN108008208B (en) * | 2016-10-31 | 2020-11-27 | 中车大同电力机车有限公司 | Electric locomotive connector manufacturing quality detection system |
| CN109655684A (en) * | 2018-12-14 | 2019-04-19 | 中山市拓电电子科技有限公司 | A kind of electric test component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |